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domenico
2025-06-24 14:35:53 +02:00
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384
target/linux/ramips/patches-6.6/001-v6.13-clocksource-drivers-ralink-Add-Ralink-System-Tick-Co.patch Normal file
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@@ -0,0 +1,384 @@
From 57cbfd333c9d65bfab1a06b49c75536ee28dc2ce Mon Sep 17 00:00:00 2001
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: Mon, 28 Oct 2024 21:36:43 +0100
Subject: clocksource/drivers/ralink: Add Ralink System Tick Counter driver
System Tick Counter is present on Ralink SoCs RT3352 and MT7620. This
driver has been in 'arch/mips/ralink' directory since the beggining of
Ralink architecture support. However, it can be moved into a more proper
place in 'drivers/clocksource'. Hence add it here adding also support for
compile test targets and reducing LOC in architecture code folder.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20241028203643.191268-2-sergio.paracuellos@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
arch/mips/ralink/Kconfig | 7 --
arch/mips/ralink/Makefile | 2 -
arch/mips/ralink/cevt-rt3352.c | 153 -------------------------------------
drivers/clocksource/Kconfig | 9 +++
drivers/clocksource/Makefile | 1 +
drivers/clocksource/timer-ralink.c | 150 ++++++++++++++++++++++++++++++++++++
6 files changed, 160 insertions(+), 162 deletions(-)
delete mode 100644 arch/mips/ralink/cevt-rt3352.c
create mode 100644 drivers/clocksource/timer-ralink.c
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -1,13 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
if RALINK
-config CLKEVT_RT3352
- bool
- depends on SOC_RT305X || SOC_MT7620
- default y
- select TIMER_OF
- select CLKSRC_MMIO
-
config RALINK_ILL_ACC
bool
depends on SOC_RT305X
--- a/arch/mips/ralink/Makefile
+++ b/arch/mips/ralink/Makefile
@@ -10,8 +10,6 @@ ifndef CONFIG_MIPS_GIC
obj-y += clk.o timer.o
endif
-obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o
-
obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o
obj-$(CONFIG_IRQ_INTC) += irq.o
--- a/arch/mips/ralink/cevt-rt3352.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 by John Crispin <john@phrozen.org>
- */
-
-#include <linux/clockchips.h>
-#include <linux/clocksource.h>
-#include <linux/interrupt.h>
-#include <linux/reset.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-#include <linux/of_address.h>
-
-#include <asm/mach-ralink/ralink_regs.h>
-
-#define SYSTICK_FREQ (50 * 1000)
-
-#define SYSTICK_CONFIG 0x00
-#define SYSTICK_COMPARE 0x04
-#define SYSTICK_COUNT 0x08
-
-/* route systick irq to mips irq 7 instead of the r4k-timer */
-#define CFG_EXT_STK_EN 0x2
-/* enable the counter */
-#define CFG_CNT_EN 0x1
-
-struct systick_device {
- void __iomem *membase;
- struct clock_event_device dev;
- int irq_requested;
- int freq_scale;
-};
-
-static int systick_set_oneshot(struct clock_event_device *evt);
-static int systick_shutdown(struct clock_event_device *evt);
-
-static int systick_next_event(unsigned long delta,
- struct clock_event_device *evt)
-{
- struct systick_device *sdev;
- u32 count;
-
- sdev = container_of(evt, struct systick_device, dev);
- count = ioread32(sdev->membase + SYSTICK_COUNT);
- count = (count + delta) % SYSTICK_FREQ;
- iowrite32(count, sdev->membase + SYSTICK_COMPARE);
-
- return 0;
-}
-
-static void systick_event_handler(struct clock_event_device *dev)
-{
- /* noting to do here */
-}
-
-static irqreturn_t systick_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *dev = (struct clock_event_device *) dev_id;
-
- dev->event_handler(dev);
-
- return IRQ_HANDLED;
-}
-
-static struct systick_device systick = {
- .dev = {
- /*
- * cevt-r4k uses 300, make sure systick
- * gets used if available
- */
- .rating = 310,
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .set_next_event = systick_next_event,
- .set_state_shutdown = systick_shutdown,
- .set_state_oneshot = systick_set_oneshot,
- .event_handler = systick_event_handler,
- },
-};
-
-static int systick_shutdown(struct clock_event_device *evt)
-{
- struct systick_device *sdev;
-
- sdev = container_of(evt, struct systick_device, dev);
-
- if (sdev->irq_requested)
- free_irq(systick.dev.irq, &systick.dev);
- sdev->irq_requested = 0;
- iowrite32(0, systick.membase + SYSTICK_CONFIG);
-
- return 0;
-}
-
-static int systick_set_oneshot(struct clock_event_device *evt)
-{
- const char *name = systick.dev.name;
- struct systick_device *sdev;
- int irq = systick.dev.irq;
-
- sdev = container_of(evt, struct systick_device, dev);
-
- if (!sdev->irq_requested) {
- if (request_irq(irq, systick_interrupt,
- IRQF_PERCPU | IRQF_TIMER, name, &systick.dev))
- pr_err("Failed to request irq %d (%s)\n", irq, name);
- }
- sdev->irq_requested = 1;
- iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
- systick.membase + SYSTICK_CONFIG);
-
- return 0;
-}
-
-static int __init ralink_systick_init(struct device_node *np)
-{
- int ret;
-
- systick.membase = of_iomap(np, 0);
- if (!systick.membase)
- return -ENXIO;
-
- systick.dev.name = np->name;
- clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
- systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
- systick.dev.max_delta_ticks = 0x7fff;
- systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev);
- systick.dev.min_delta_ticks = 0x3;
- systick.dev.irq = irq_of_parse_and_map(np, 0);
- if (!systick.dev.irq) {
- pr_err("%pOFn: request_irq failed", np);
- return -EINVAL;
- }
-
- ret = clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
- SYSTICK_FREQ, 301, 16,
- clocksource_mmio_readl_up);
- if (ret)
- return ret;
-
- clockevents_register_device(&systick.dev);
-
- pr_info("%pOFn: running - mult: %d, shift: %d\n",
- np, systick.dev.mult, systick.dev.shift);
-
- return 0;
-}
-
-TIMER_OF_DECLARE(systick, "ralink,cevt-systick", ralink_systick_init);
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -733,4 +733,13 @@ config GOLDFISH_TIMER
help
Support for the timer/counter of goldfish-rtc
+config RALINK_TIMER
+ bool "Ralink System Tick Counter"
+ depends on SOC_RT305X || SOC_MT7620 || COMPILE_TEST
+ select CLKSRC_MMIO
+ select TIMER_OF
+ help
+ Enables support for system tick counter present on
+ Ralink SoCs RT3352 and MT7620.
+
endmenu
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -89,3 +89,4 @@ obj-$(CONFIG_MSC313E_TIMER) += timer-ms
obj-$(CONFIG_GOLDFISH_TIMER) += timer-goldfish.o
obj-$(CONFIG_GXP_TIMER) += timer-gxp.o
obj-$(CONFIG_CLKSRC_LOONGSON1_PWM) += timer-loongson1-pwm.o
+obj-$(CONFIG_RALINK_TIMER) += timer-ralink.o
--- /dev/null
+++ b/drivers/clocksource/timer-ralink.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Ralink System Tick Counter driver present on RT3352 and MT7620 SoCs.
+ *
+ * Copyright (C) 2013 by John Crispin <john@phrozen.org>
+ */
+
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/interrupt.h>
+#include <linux/reset.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+
+#define SYSTICK_FREQ (50 * 1000)
+
+#define SYSTICK_CONFIG 0x00
+#define SYSTICK_COMPARE 0x04
+#define SYSTICK_COUNT 0x08
+
+/* route systick irq to mips irq 7 instead of the r4k-timer */
+#define CFG_EXT_STK_EN 0x2
+/* enable the counter */
+#define CFG_CNT_EN 0x1
+
+struct systick_device {
+ void __iomem *membase;
+ struct clock_event_device dev;
+ int irq_requested;
+ int freq_scale;
+};
+
+static int systick_set_oneshot(struct clock_event_device *evt);
+static int systick_shutdown(struct clock_event_device *evt);
+
+static int systick_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+{
+ struct systick_device *sdev;
+ u32 count;
+
+ sdev = container_of(evt, struct systick_device, dev);
+ count = ioread32(sdev->membase + SYSTICK_COUNT);
+ count = (count + delta) % SYSTICK_FREQ;
+ iowrite32(count, sdev->membase + SYSTICK_COMPARE);
+
+ return 0;
+}
+
+static void systick_event_handler(struct clock_event_device *dev)
+{
+ /* noting to do here */
+}
+
+static irqreturn_t systick_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *dev = (struct clock_event_device *)dev_id;
+
+ dev->event_handler(dev);
+
+ return IRQ_HANDLED;
+}
+
+static struct systick_device systick = {
+ .dev = {
+ /*
+ * cevt-r4k uses 300, make sure systick
+ * gets used if available
+ */
+ .rating = 310,
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .set_next_event = systick_next_event,
+ .set_state_shutdown = systick_shutdown,
+ .set_state_oneshot = systick_set_oneshot,
+ .event_handler = systick_event_handler,
+ },
+};
+
+static int systick_shutdown(struct clock_event_device *evt)
+{
+ struct systick_device *sdev;
+
+ sdev = container_of(evt, struct systick_device, dev);
+
+ if (sdev->irq_requested)
+ free_irq(systick.dev.irq, &systick.dev);
+ sdev->irq_requested = 0;
+ iowrite32(0, systick.membase + SYSTICK_CONFIG);
+
+ return 0;
+}
+
+static int systick_set_oneshot(struct clock_event_device *evt)
+{
+ const char *name = systick.dev.name;
+ struct systick_device *sdev;
+ int irq = systick.dev.irq;
+
+ sdev = container_of(evt, struct systick_device, dev);
+
+ if (!sdev->irq_requested) {
+ if (request_irq(irq, systick_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, name, &systick.dev))
+ pr_err("Failed to request irq %d (%s)\n", irq, name);
+ }
+ sdev->irq_requested = 1;
+ iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
+ systick.membase + SYSTICK_CONFIG);
+
+ return 0;
+}
+
+static int __init ralink_systick_init(struct device_node *np)
+{
+ int ret;
+
+ systick.membase = of_iomap(np, 0);
+ if (!systick.membase)
+ return -ENXIO;
+
+ systick.dev.name = np->name;
+ clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
+ systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
+ systick.dev.max_delta_ticks = 0x7fff;
+ systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev);
+ systick.dev.min_delta_ticks = 0x3;
+ systick.dev.irq = irq_of_parse_and_map(np, 0);
+ if (!systick.dev.irq) {
+ pr_err("%pOFn: request_irq failed", np);
+ return -EINVAL;
+ }
+
+ ret = clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
+ SYSTICK_FREQ, 301, 16,
+ clocksource_mmio_readl_up);
+ if (ret)
+ return ret;
+
+ clockevents_register_device(&systick.dev);
+
+ pr_info("%pOFn: running - mult: %d, shift: %d\n",
+ np, systick.dev.mult, systick.dev.shift);
+
+ return 0;
+}
+
+TIMER_OF_DECLARE(systick, "ralink,cevt-systick", ralink_systick_init);

101
target/linux/ramips/patches-6.6/002-03-v6.13-clk-ralink-mtmips-add-mmc-related-clocks-for-SoCs-MT.patch Normal file
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@@ -0,0 +1,101 @@
From 198675bbc03d437fb80a35d781ad13d622d0ff68 Mon Sep 17 00:00:00 2001
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: Tue, 10 Sep 2024 06:40:24 +0200
Subject: [PATCH 3/3] clk: ralink: mtmips: add mmc related clocks for SoCs
MT7620, MT7628 and MT7688
Original architecture clock code from where this driver was derived did not
include nothing related to mmc clocks. OpenWRT people started to use mtk-sd
upstream driver recently and they were forced to use a dts 'fixed-clock'
node with 48 MHz clock:
- https://github.com/openwrt/openwrt/pull/15896
The proper thing to do to avoid that is to add the mmc related clocks to the
driver to avoid a dts with fixed clocks nodes. The minimal documentation in
the mt7620 programming guide says that there is a BBP_PLL clock of 480 MHz
derived from the 40 MHz XTAL and from there a clock divider by ten produces
the desired SDHC clock of 48 MHz for the mmc. Hence add a fixed clock 'bbppll'
and factor clock 'sdhc' ten divider child to properly set the 'mmc' peripheral
clock with the desired 48 Mhz rate.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20240910044024.120009-4-sergio.paracuellos@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
drivers/clk/ralink/clk-mtmips.c | 30 +++++++++++++++++++++++-------
1 file changed, 23 insertions(+), 7 deletions(-)
--- a/drivers/clk/ralink/clk-mtmips.c
+++ b/drivers/clk/ralink/clk-mtmips.c
@@ -207,6 +207,7 @@ static struct mtmips_clk mt7620_pherip_c
{ CLK_PERIPH("10000b00.spi", "bus") },
{ CLK_PERIPH("10000b40.spi", "bus") },
{ CLK_PERIPH("10000c00.uartlite", "periph") },
+ { CLK_PERIPH("10130000.mmc", "sdhc") },
{ CLK_PERIPH("10180000.wmac", "xtal") }
};
@@ -220,6 +221,7 @@ static struct mtmips_clk mt76x8_pherip_c
{ CLK_PERIPH("10000c00.uart0", "periph") },
{ CLK_PERIPH("10000d00.uart1", "periph") },
{ CLK_PERIPH("10000e00.uart2", "periph") },
+ { CLK_PERIPH("10130000.mmc", "sdhc") },
{ CLK_PERIPH("10300000.wmac", "xtal") }
};
@@ -272,8 +274,13 @@ static struct mtmips_clk_fixed rt3352_fi
CLK_FIXED("periph", "xtal", 40000000)
};
+static struct mtmips_clk_fixed mt7620_fixed_clocks[] = {
+ CLK_FIXED("bbppll", "xtal", 480000000)
+};
+
static struct mtmips_clk_fixed mt76x8_fixed_clocks[] = {
- CLK_FIXED("pcmi2s", "xtal", 480000000),
+ CLK_FIXED("bbppll", "xtal", 480000000),
+ CLK_FIXED("pcmi2s", "bbppll", 480000000),
CLK_FIXED("periph", "xtal", 40000000)
};
@@ -328,6 +335,15 @@ static struct mtmips_clk_factor rt305x_f
CLK_FACTOR("bus", "cpu", 1, 3)
};
+static struct mtmips_clk_factor mt7620_factor_clocks[] = {
+ CLK_FACTOR("sdhc", "bbppll", 1, 10)
+};
+
+static struct mtmips_clk_factor mt76x8_factor_clocks[] = {
+ CLK_FACTOR("bus", "cpu", 1, 3),
+ CLK_FACTOR("sdhc", "bbppll", 1, 10)
+};
+
static int mtmips_register_factor_clocks(struct clk_hw_onecell_data *clk_data,
struct mtmips_clk_priv *priv)
{
@@ -811,10 +827,10 @@ static const struct mtmips_clk_data rt53
static const struct mtmips_clk_data mt7620_clk_data = {
.clk_base = mt7620_clks_base,
.num_clk_base = ARRAY_SIZE(mt7620_clks_base),
- .clk_fixed = NULL,
- .num_clk_fixed = 0,
- .clk_factor = NULL,
- .num_clk_factor = 0,
+ .clk_fixed = mt7620_fixed_clocks,
+ .num_clk_fixed = ARRAY_SIZE(mt7620_fixed_clocks),
+ .clk_factor = mt7620_factor_clocks,
+ .num_clk_factor = ARRAY_SIZE(mt7620_factor_clocks),
.clk_periph = mt7620_pherip_clks,
.num_clk_periph = ARRAY_SIZE(mt7620_pherip_clks),
};
@@ -824,8 +840,8 @@ static const struct mtmips_clk_data mt76
.num_clk_base = ARRAY_SIZE(mt76x8_clks_base),
.clk_fixed = mt76x8_fixed_clocks,
.num_clk_fixed = ARRAY_SIZE(mt76x8_fixed_clocks),
- .clk_factor = rt305x_factor_clocks,
- .num_clk_factor = ARRAY_SIZE(rt305x_factor_clocks),
+ .clk_factor = mt76x8_factor_clocks,
+ .num_clk_factor = ARRAY_SIZE(mt76x8_factor_clocks),
.clk_periph = mt76x8_pherip_clks,
.num_clk_periph = ARRAY_SIZE(mt76x8_pherip_clks),
};

20
target/linux/ramips/patches-6.6/200-add-ralink-eth.patch Normal file
View File

@@ -0,0 +1,20 @@
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -166,6 +166,7 @@ source "drivers/net/ethernet/pensando/Kc
source "drivers/net/ethernet/qlogic/Kconfig"
source "drivers/net/ethernet/brocade/Kconfig"
source "drivers/net/ethernet/qualcomm/Kconfig"
+source "drivers/net/ethernet/ralink/Kconfig"
source "drivers/net/ethernet/rdc/Kconfig"
source "drivers/net/ethernet/realtek/Kconfig"
source "drivers/net/ethernet/renesas/Kconfig"
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -77,6 +77,7 @@ obj-$(CONFIG_NET_VENDOR_PACKET_ENGINES)
obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/
obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
obj-$(CONFIG_NET_VENDOR_QUALCOMM) += qualcomm/
+obj-$(CONFIG_NET_VENDOR_RALINK) += ralink/
obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/
obj-$(CONFIG_NET_VENDOR_RENESAS) += renesas/
obj-$(CONFIG_NET_VENDOR_RDC) += rdc/

19
target/linux/ramips/patches-6.6/300-mt7620-export-chip-version-and-pkg.patch Normal file
View File

@@ -0,0 +1,19 @@
--- a/arch/mips/include/asm/mach-ralink/mt7620.h
+++ b/arch/mips/include/asm/mach-ralink/mt7620.h
@@ -62,4 +62,16 @@ static inline int mt7620_get_eco(void)
return rt_sysc_r32(SYSC_REG_CHIP_REV) & CHIP_REV_ECO_MASK;
}
+static inline int mt7620_get_chipver(void)
+{
+ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_VER_SHIFT) &
+ CHIP_REV_VER_MASK;
+}
+
+static inline int mt7620_get_pkg(void)
+{
+ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_PKG_SHIFT) &
+ CHIP_REV_PKG_MASK;
+}
+
#endif

114
target/linux/ramips/patches-6.6/311-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch Normal file
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@@ -0,0 +1,114 @@
From: John Crispin <blogic@openwrt.org>
Date: Sun, 14 Jul 2013 23:08:11 +0200
Subject: [PATCH 1/2] MIPS: use set_mode() to enable/disable the cevt-r4k irq
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/kernel/cevt-r4k.c | 43 +++++++++++++++++++++++++++++++++++++
drivers/clocksource/Kconfig | 5 +++++
2 files changed, 48 insertions(+)
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -16,6 +16,31 @@
#include <asm/time.h>
#include <asm/cevt-r4k.h>
+#ifdef CONFIG_CEVT_SYSTICK_QUIRK
+static int mips_state_oneshot(struct clock_event_device *evt)
+{
+ unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
+ if (!cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 1;
+ if (request_irq(evt->irq, c0_compare_interrupt, flags, "timer",
+ c0_compare_interrupt))
+ pr_err("Failed to request irq %d (timer)\n", evt->irq);
+ }
+
+ return 0;
+}
+
+static int mips_state_shutdown(struct clock_event_device *evt)
+{
+ if (cp0_timer_irq_installed) {
+ cp0_timer_irq_installed = 0;
+ free_irq(evt->irq, NULL);
+ }
+
+ return 0;
+}
+#endif
+
static int mips_next_event(unsigned long delta,
struct clock_event_device *evt)
{
@@ -292,7 +317,9 @@ core_initcall(r4k_register_cpufreq_notif
int r4k_clockevent_init(void)
{
+#ifndef CONFIG_CEVT_SYSTICK_QUIRK
unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
+#endif
unsigned int cpu = smp_processor_id();
struct clock_event_device *cd;
unsigned int irq, min_delta;
@@ -303,6 +330,15 @@ int r4k_clockevent_init(void)
if (!c0_compare_int_usable())
return -ENXIO;
+#ifdef CONFIG_CEVT_SYSTICK_QUIRK
+ /*
+ * With vectored interrupts things are getting platform specific.
+ * get_c0_compare_int is a hook to allow a platform to return the
+ * interrupt number of its liking.
+ */
+ irq = get_c0_compare_int();
+#endif
+
cd = &per_cpu(mips_clockevent_device, cpu);
cd->name = "MIPS";
@@ -314,11 +350,17 @@ int r4k_clockevent_init(void)
cd->rating = 300;
cd->cpumask = cpumask_of(cpu);
+#ifdef CONFIG_CEVT_SYSTICK_QUIRK
+ cd->irq = irq;
+ cd->set_state_shutdown = mips_state_shutdown;
+ cd->set_state_oneshot = mips_state_oneshot;
+#endif
cd->set_next_event = mips_next_event;
cd->event_handler = mips_event_handler;
clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff);
+#ifndef CONFIG_CEVT_SYSTICK_QUIRK
if (cp0_timer_irq_installed)
return 0;
@@ -334,6 +376,7 @@ int r4k_clockevent_init(void)
if (request_irq(irq, c0_compare_interrupt, flags, "timer",
c0_compare_interrupt))
pr_err("Failed to request irq %d (timer)\n", irq);
+#endif
return 0;
}
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -732,10 +732,15 @@ config GOLDFISH_TIMER
depends on RTC_DRV_GOLDFISH
help
Support for the timer/counter of goldfish-rtc
+
+config CEVT_SYSTICK_QUIRK
+ bool
+ default n
config RALINK_TIMER
bool "Ralink System Tick Counter"
depends on SOC_RT305X || SOC_MT7620 || COMPILE_TEST
+ select CEVT_SYSTICK_QUIRK
select CLKSRC_MMIO
select TIMER_OF
help

202
target/linux/ramips/patches-6.6/312-MIPS-ralink-add-cpu-frequency-scaling.patch Normal file
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@@ -0,0 +1,202 @@
From: John Crispin <blogic@openwrt.org>
Date: Sun, 28 Jul 2013 16:26:41 +0200
Subject: [PATCH 2/2] MIPS: ralink: add cpu frequency scaling
This feature will break udelay() and cause the delay loop to have longer delays
when the frequency is scaled causing a performance hit.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/clocksource/timer-ralink.c | 117 ++++++++++++++++++++++-------
1 file changed, 89 insertions(+), 28 deletions(-)
--- a/drivers/clocksource/timer-ralink.c
+++ b/drivers/clocksource/timer-ralink.c
@@ -5,6 +5,7 @@
* Copyright (C) 2013 by John Crispin <john@phrozen.org>
*/
+#include <asm/mach-ralink/ralink_regs.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
#include <linux/interrupt.h>
@@ -26,6 +27,10 @@
/* enable the counter */
#define CFG_CNT_EN 0x1
+/* mt7620 frequency scaling defines */
+#define CLK_LUT_CFG 0x40
+#define SLEEP_EN BIT(31)
+
struct systick_device {
void __iomem *membase;
struct clock_event_device dev;
@@ -33,21 +38,53 @@ struct systick_device {
int freq_scale;
};
+static void (*systick_freq_scaling)(struct systick_device *sdev, int status);
+
static int systick_set_oneshot(struct clock_event_device *evt);
static int systick_shutdown(struct clock_event_device *evt);
+static inline void mt7620_freq_scaling(struct systick_device *sdev, int status)
+{
+ if (sdev->freq_scale == status)
+ return;
+
+ sdev->freq_scale = status;
+
+ pr_info("%s: %s autosleep mode\n", sdev->dev.name,
+ (status) ? ("enable") : ("disable"));
+ if (status)
+ rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) | SLEEP_EN, CLK_LUT_CFG);
+ else
+ rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) & ~SLEEP_EN, CLK_LUT_CFG);
+}
+
+static inline unsigned int read_count(struct systick_device *sdev)
+{
+ return ioread32(sdev->membase + SYSTICK_COUNT);
+}
+
+static inline unsigned int read_compare(struct systick_device *sdev)
+{
+ return ioread32(sdev->membase + SYSTICK_COMPARE);
+}
+
+static inline void write_compare(struct systick_device *sdev, unsigned int val)
+{
+ iowrite32(val, sdev->membase + SYSTICK_COMPARE);
+}
+
static int systick_next_event(unsigned long delta,
struct clock_event_device *evt)
{
struct systick_device *sdev;
- u32 count;
+ int res;
sdev = container_of(evt, struct systick_device, dev);
- count = ioread32(sdev->membase + SYSTICK_COUNT);
- count = (count + delta) % SYSTICK_FREQ;
- iowrite32(count, sdev->membase + SYSTICK_COMPARE);
+ delta += read_count(sdev);
+ write_compare(sdev, delta);
+ res = ((int)(read_count(sdev) - delta) >= 0) ? -ETIME : 0;
- return 0;
+ return res;
}
static void systick_event_handler(struct clock_event_device *dev)
@@ -57,20 +94,25 @@ static void systick_event_handler(struct
static irqreturn_t systick_interrupt(int irq, void *dev_id)
{
- struct clock_event_device *dev = (struct clock_event_device *)dev_id;
+ int ret = 0;
+ struct clock_event_device *cdev;
+ struct systick_device *sdev;
- dev->event_handler(dev);
+ if (read_c0_cause() & STATUSF_IP7) {
+ cdev = (struct clock_event_device *)dev_id;
+ sdev = container_of(cdev, struct systick_device, dev);
+
+ /* Clear Count/Compare Interrupt */
+ write_compare(sdev, read_compare(sdev));
+ cdev->event_handler(cdev);
+ ret = 1;
+ }
- return IRQ_HANDLED;
+ return IRQ_RETVAL(ret);
}
static struct systick_device systick = {
.dev = {
- /*
- * cevt-r4k uses 300, make sure systick
- * gets used if available
- */
- .rating = 310,
.features = CLOCK_EVT_FEAT_ONESHOT,
.set_next_event = systick_next_event,
.set_state_shutdown = systick_shutdown,
@@ -88,7 +130,13 @@ static int systick_shutdown(struct clock
if (sdev->irq_requested)
free_irq(systick.dev.irq, &systick.dev);
sdev->irq_requested = 0;
- iowrite32(0, systick.membase + SYSTICK_CONFIG);
+ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG);
+
+ if (systick_freq_scaling)
+ systick_freq_scaling(sdev, 0);
+
+ if (systick_freq_scaling)
+ systick_freq_scaling(sdev, 1);
return 0;
}
@@ -113,33 +161,46 @@ static int systick_set_oneshot(struct cl
return 0;
}
+static const struct of_device_id systick_match[] = {
+ { .compatible = "ralink,mt7620a-systick", .data = mt7620_freq_scaling},
+ {},
+};
+
static int __init ralink_systick_init(struct device_node *np)
{
- int ret;
+ const struct of_device_id *match;
+ int rating = 200;
systick.membase = of_iomap(np, 0);
if (!systick.membase)
return -ENXIO;
- systick.dev.name = np->name;
- clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
- systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
- systick.dev.max_delta_ticks = 0x7fff;
- systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev);
- systick.dev.min_delta_ticks = 0x3;
+ match = of_match_node(systick_match, np);
+ if (match) {
+ systick_freq_scaling = match->data;
+ /*
+ * cevt-r4k uses 300, make sure systick
+ * gets used if available
+ */
+ rating = 310;
+ }
+
+ /* enable counter than register clock source */
+ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG);
+ clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
+ SYSTICK_FREQ, rating, 16, clocksource_mmio_readl_up);
+
+ /* register clock event */
systick.dev.irq = irq_of_parse_and_map(np, 0);
if (!systick.dev.irq) {
pr_err("%pOFn: request_irq failed", np);
return -EINVAL;
}
- ret = clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
- SYSTICK_FREQ, 301, 16,
- clocksource_mmio_readl_up);
- if (ret)
- return ret;
-
- clockevents_register_device(&systick.dev);
+ systick.dev.name = np->name;
+ systick.dev.rating = rating;
+ systick.dev.cpumask = cpumask_of(0);
+ clockevents_config_and_register(&systick.dev, SYSTICK_FREQ, 0x3, 0x7fff);
pr_info("%pOFn: running - mult: %d, shift: %d\n",
np, systick.dev.mult, systick.dev.shift);

63
target/linux/ramips/patches-6.6/314-MIPS-add-bootargs-override-property.patch Normal file
View File

@@ -0,0 +1,63 @@
From f15d27f9c90ede4b16eb37f9ae573ef81c2b6996 Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Thu, 31 Dec 2020 18:49:12 +0100
Subject: [PATCH] MIPS: add bootargs-override property
Add support for the bootargs-override property to the chosen node
similar to the one used on ipq806x or mpc85xx.
This is necessary, as the U-Boot used on some boards, notably the
Ubiquiti UniFi 6 Lite, overwrite the bootargs property of the chosen
node leading to a kernel panic when loading OpenWrt.
Signed-off-by: David Bauer <mail@david-bauer.net>
---
arch/mips/kernel/setup.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -564,8 +564,28 @@ static int __init bootcmdline_scan_chose
#endif /* CONFIG_OF_EARLY_FLATTREE */
+static int __init bootcmdline_scan_chosen_override(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ bool *dt_bootargs = data;
+ const char *p;
+ int l;
+
+ if (depth != 1 || !data || strcmp(uname, "chosen") != 0)
+ return 0;
+
+ p = of_get_flat_dt_prop(node, "bootargs-override", &l);
+ if (p != NULL && l > 0) {
+ strlcpy(boot_command_line, p, COMMAND_LINE_SIZE);
+ *dt_bootargs = true;
+ }
+
+ return 1;
+}
+
static void __init bootcmdline_init(void)
{
+ bool dt_bootargs_override = false;
bool dt_bootargs = false;
/*
@@ -579,6 +599,14 @@ static void __init bootcmdline_init(void
}
/*
+ * If bootargs-override in the chosen node is set, use this as the
+ * command line
+ */
+ of_scan_flat_dt(bootcmdline_scan_chosen_override, &dt_bootargs_override);
+ if (dt_bootargs_override)
+ return;
+
+ /*
* If the user specified a built-in command line &
* MIPS_CMDLINE_BUILTIN_EXTEND, then the built-in command line is
* prepended to arguments from the bootloader or DT so we'll copy them

28
target/linux/ramips/patches-6.6/315-owrt-hack-fix-mt7688-cache-issue.patch Normal file
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@@ -0,0 +1,28 @@
From 5ede027f6c4a57ed25da872420508b7f1168b36b Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 7 Dec 2015 17:15:32 +0100
Subject: [PATCH 13/53] owrt: hack: fix mt7688 cache issue
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -706,7 +706,6 @@ static void __init arch_mem_init(char **
mips_reserve_vmcore();
mips_parse_crashkernel();
- device_tree_init();
/*
* In order to reduce the possibility of kernel panic when failed to
@@ -842,6 +841,7 @@ void __init setup_arch(char **cmdline_p)
cpu_cache_init();
paging_init();
+ device_tree_init();
memblock_dump_all();

25
target/linux/ramips/patches-6.6/316-arch-mips-do-not-select-illegal-access-driver-by-def.patch Normal file
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@@ -0,0 +1,25 @@
From 9e6ce539092a1dd605a20bf73c655a9de58d8641 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 7 Dec 2015 17:18:05 +0100
Subject: [PATCH 15/53] arch: mips: do not select illegal access driver by
default
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/ralink/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -2,9 +2,9 @@
if RALINK
config RALINK_ILL_ACC
- bool
+ bool "illegal access irq"
depends on SOC_RT305X
- default y
+ default n
config IRQ_INTC
bool

75
target/linux/ramips/patches-6.6/320-MIPS-add-support-for-buggy-MT7621S-core-detection.patch Normal file
View File

@@ -0,0 +1,75 @@
From 6decd1aad15f56b169217789630a0098b496de0e Mon Sep 17 00:00:00 2001
From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Date: Wed, 7 Apr 2021 13:07:38 -0700
Subject: [PATCH] MIPS: add support for buggy MT7621S core detection
Most MT7621 SoCs have 2 cores, which is detected and supported properly
by CPS.
Unfortunately, MT7621 SoC has a less common S variant with only one core.
On MT7621S, GCR_CONFIG still reports 2 cores, which leads to hangs when
starting SMP. CPULAUNCH registers can be used in that case to detect the
absence of the second core and override the GCR_CONFIG PCORES field.
Rework a long-standing OpenWrt patch to override the value of
mips_cps_numcores on single-core MT7621 systems.
Tested on a dual-core MT7621 device (Ubiquiti ER-X) and a single-core
MT7621 device (Netgear R6220).
Original 4.14 OpenWrt patch:
Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=4cdbc90a376dd0555201c1434a2081e055e9ceb7
Current 5.10 OpenWrt patch:
Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ramips/patches-5.10/320-mt7621-core-detect-hack.patch;h=c63f0f4c1ec742e24d8480e80553863744b58f6a;hb=10267e17299806f9885d086147878f6c492cb904
Suggested-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
arch/mips/include/asm/mips-cps.h | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
--- a/arch/mips/include/asm/mips-cps.h
+++ b/arch/mips/include/asm/mips-cps.h
@@ -11,6 +11,8 @@
#include <linux/io.h>
#include <linux/types.h>
+#include <asm/mips-boards/launch.h>
+
extern unsigned long __cps_access_bad_size(void)
__compiletime_error("Bad size for CPS accessor");
@@ -162,12 +164,31 @@ static inline uint64_t mips_cps_cluster_
*/
static inline unsigned int mips_cps_numcores(unsigned int cluster)
{
+ unsigned int ncores;
+
if (!mips_cm_present())
return 0;
/* Add one before masking to handle 0xff indicating no cores */
- return FIELD_GET(CM_GCR_CONFIG_PCORES,
+ ncores = FIELD_GET(CM_GCR_CONFIG_PCORES,
mips_cps_cluster_config(cluster) + 1);
+
+ if (IS_ENABLED(CONFIG_SOC_MT7621)) {
+ struct cpulaunch *launch;
+
+ /*
+ * Ralink MT7621S SoC is single core, but the GCR_CONFIG method
+ * always reports 2 cores. Check the second core's LAUNCH_FREADY
+ * flag to detect if the second core is missing. This method
+ * only works before the core has been started.
+ */
+ launch = (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
+ launch += 2; /* MT7621 has 2 VPEs per core */
+ if (!(launch->flags & LAUNCH_FREADY))
+ ncores = 1;
+ }
+
+ return ncores;
}
/**

15
target/linux/ramips/patches-6.6/324-mt7621-perfctr-fix.patch Normal file
View File

@@ -0,0 +1,15 @@
--- a/arch/mips/ralink/irq-gic.c
+++ b/arch/mips/ralink/irq-gic.c
@@ -13,6 +13,12 @@
int get_c0_perfcount_int(void)
{
+ /*
+ * Performance counter events are routed through GIC.
+ * Prevent them from firing on CPU IRQ7 as well
+ */
+ clear_c0_status(IE_SW0 << 7);
+
return gic_get_c0_perfcount_int();
}
EXPORT_SYMBOL_GPL(get_c0_perfcount_int);

20
target/linux/ramips/patches-6.6/400-mtd-cfi-cmdset-0002-force-word-write.patch Normal file
View File

@@ -0,0 +1,20 @@
From ee9081b2726a5ca8cde5497afdc5425e21ff8f8b Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 15 Jul 2013 00:39:21 +0200
Subject: [PATCH 37/53] mtd: cfi cmdset 0002 force word write
---
drivers/mtd/chips/cfi_cmdset_0002.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -38,7 +38,7 @@
#include <linux/mtd/xip.h>
#define AMD_BOOTLOC_BUG
-#define FORCE_WORD_WRITE 0
+#define FORCE_WORD_WRITE 1
#define MAX_RETRIES 3

75
target/linux/ramips/patches-6.6/405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch Normal file
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@@ -0,0 +1,75 @@
From 52d14545d2fc276b1bf9ccf48d4612fab6edfb6a Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Thu, 6 May 2021 17:49:55 +0200
Subject: [PATCH] mtd: spi-nor: Add support for BoHong bh25q128as
Add MTD support for the BoHong bh25q128as SPI NOR chip.
The chip has 16MB of total capacity, divided into a total of 256
sectors, each 64KB sized. The chip also supports 4KB sectors.
Additionally, it supports dual and quad read modes.
Functionality was verified on an Tenbay WR1800K / MTK MT7621 board.
Signed-off-by: David Bauer <mail@david-bauer.net>
---
drivers/mtd/spi-nor/Makefile | 1 +
drivers/mtd/spi-nor/bohong.c | 21 +++++++++++++++++++++
drivers/mtd/spi-nor/core.c | 1 +
drivers/mtd/spi-nor/core.h | 1 +
4 files changed, 24 insertions(+)
create mode 100644 drivers/mtd/spi-nor/bohong.c
--- a/drivers/mtd/spi-nor/Makefile
+++ b/drivers/mtd/spi-nor/Makefile
@@ -2,6 +2,7 @@
spi-nor-objs := core.o sfdp.o swp.o otp.o sysfs.o
spi-nor-objs += atmel.o
+spi-nor-objs += bohong.o
spi-nor-objs += catalyst.o
spi-nor-objs += eon.o
spi-nor-objs += esmt.o
--- /dev/null
+++ b/drivers/mtd/spi-nor/bohong.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005, Intec Automation Inc.
+ * Copyright (C) 2014, Freescale Semiconductor, Inc.
+ */
+
+#include <linux/mtd/spi-nor.h>
+
+#include "core.h"
+
+static const struct flash_info bohong_parts[] = {
+ /* BoHong Microelectronics */
+ { "bh25q128as", INFO(0x684018, 0, 64 * 1024, 256)
+ NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+};
+
+const struct spi_nor_manufacturer spi_nor_bohong = {
+ .name = "bohong",
+ .parts = bohong_parts,
+ .nparts = ARRAY_SIZE(bohong_parts),
+};
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2001,6 +2001,7 @@ int spi_nor_sr2_bit7_quad_enable(struct
static const struct spi_nor_manufacturer *manufacturers[] = {
&spi_nor_atmel,
+ &spi_nor_bohong,
&spi_nor_catalyst,
&spi_nor_eon,
&spi_nor_esmt,
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -631,6 +631,7 @@ struct sfdp {
/* Manufacturer drivers. */
extern const struct spi_nor_manufacturer spi_nor_atmel;
+extern const struct spi_nor_manufacturer spi_nor_bohong;
extern const struct spi_nor_manufacturer spi_nor_catalyst;
extern const struct spi_nor_manufacturer spi_nor_eon;
extern const struct spi_nor_manufacturer spi_nor_esmt;

47
target/linux/ramips/patches-6.6/410-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch Normal file
View File

@@ -0,0 +1,47 @@
From e84e2430ee0e483842b4ff013ae8a6e7e2fa2734 Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Wed, 1 Apr 2020 02:07:58 +0800
Subject: [PATCH 1/2] mtd: rawnand: add driver support for MT7621 nand
flash controller
This patch adds NAND flash controller driver for MediaTek MT7621 SoC.
The NAND flash controller is similar with controllers described in
mtk_nand.c, except that the controller from MT7621 doesn't support DMA
transmission, and some registers' offset and fields are different.
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
drivers/mtd/nand/raw/Kconfig | 8 +
drivers/mtd/nand/raw/Makefile | 1 +
drivers/mtd/nand/raw/mt7621_nand.c | 1348 ++++++++++++++++++++++++++++++++++++
3 files changed, 1357 insertions(+)
create mode 100644 drivers/mtd/nand/raw/mt7621_nand.c
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -337,6 +337,14 @@ config MTD_NAND_QCOM
Enables support for NAND flash chips on SoCs containing the EBI2 NAND
controller. This controller is found on IPQ806x SoC.
+config MTD_NAND_MT7621
+ tristate "MT7621 NAND controller"
+ depends on SOC_MT7621 || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ Enables support for NAND controller on MT7621 SoC.
+ This driver uses PIO mode for data transmission instead of DMA mode.
+
config MTD_NAND_MTK
tristate "MTK NAND controller"
depends on MTD_NAND_ECC_MEDIATEK
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_MTD_NAND_SUNXI) += sunxi_n
obj-$(CONFIG_MTD_NAND_HISI504) += hisi504_nand.o
obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmnand/
obj-$(CONFIG_MTD_NAND_QCOM) += qcom_nandc.o
+obj-$(CONFIG_MTD_NAND_MT7621) += mt7621_nand.o
obj-$(CONFIG_MTD_NAND_MTK) += mtk_nand.o
obj-$(CONFIG_MTD_NAND_MXIC) += mxic_nand.o
obj-$(CONFIG_MTD_NAND_TEGRA) += tegra_nand.o

85
target/linux/ramips/patches-6.6/411-dt-bindings-add-documentation-for-mt7621-nand-driver.patch Normal file
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@@ -0,0 +1,85 @@
From 3d5f4da8296b23eb3abf8b13122b0d06a215e79c Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Wed, 1 Apr 2020 02:07:59 +0800
Subject: [PATCH 2/2] dt-bindings: add documentation for mt7621-nand driver
This patch adds documentation for MediaTek MT7621 NAND flash controller
driver.
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
.../bindings/mtd/mediatek,mt7621-nfc.yaml | 68 ++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/mediatek,mt7621-nfc.yaml
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/mediatek,mt7621-nfc.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/mediatek,mt7621-nfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT7621 SoC NAND Flash Controller (NFC) DT binding
+
+maintainers:
+ - Weijie Gao <weijie.gao@mediatek.com>
+
+description: |
+ This driver uses a single node to describe both NAND Flash controller
+ interface (NFI) and ECC engine for MT7621 SoC.
+ MT7621 supports only one chip select.
+
+properties:
+ "#address-cells": false
+ "#size-cells": false
+
+ compatible:
+ enum:
+ - mediatek,mt7621-nfc
+
+ reg:
+ items:
+ - description: Register base of NFI core
+ - description: Register base of ECC engine
+
+ reg-names:
+ items:
+ - const: nfi
+ - const: ecc
+
+ clocks:
+ items:
+ - description: Source clock for NFI core, fixed 125MHz
+
+ clock-names:
+ items:
+ - const: nfi_clk
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ nficlock: nficlock {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+
+ clock-frequency = <125000000>;
+ };
+
+ nand@1e003000 {
+ compatible = "mediatek,mt7621-nfc";
+
+ reg = <0x1e003000 0x800
+ 0x1e003800 0x800>;
+ reg-names = "nfi", "ecc";
+
+ clocks = <&nficlock>;
+ clock-names = "nfi_clk";
+ };

31
target/linux/ramips/patches-6.6/720-NET-no-auto-carrier-off-support.patch Normal file
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@@ -0,0 +1,31 @@
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 09:38:50 +0100
Subject: [PATCH] NET: multi phy support
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/net/phy/phy_device.c | 2 +-
include/linux/phy.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1075,7 +1075,7 @@ static void phy_link_change(struct phy_d
if (up)
netif_carrier_on(netdev);
- else
+ else if (!phydev->no_auto_carrier_off)
netif_carrier_off(netdev);
phydev->adjust_link(netdev);
if (phydev->mii_ts && phydev->mii_ts->link_state)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -661,6 +661,7 @@ struct phy_device {
unsigned downshifted_rate:1;
unsigned is_on_sfp_module:1;
unsigned mac_managed_pm:1;
+ unsigned no_auto_carrier_off:1;
unsigned wol_enabled:1;
unsigned autoneg:1;

37
target/linux/ramips/patches-6.6/800-dmaengine-mediatek-add-HSDMA-support-for-mt7621.patch Normal file
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@@ -0,0 +1,37 @@
From d94fc5ce1dc395747c3934ecffcdec0396583755 Mon Sep 17 00:00:00 2001
From: Nick Hainke <vincent@systemli.org>
Date: Fri, 26 May 2023 19:46:33 +0200
Subject: [PATCH] dmaengine: mediatek: add HSDMA support for mt7621
Commit 87dd67f496f7 ("staging: mt7621-dma: remove driver from tree")
removed the mt7621-dma driver. Move the driver from staging to the
folder "drivers/dma/mediatek" containing already other mediatek dma
driver implementations and maintain it downstream in OpenWrt.
This patch will not be sent to upstream linux. It is just a workaround.
Signed-off-by: Nick Hainke <vincent@systemli.org>
---
drivers/dma/mediatek/Kconfig | 6 ++++++
drivers/dma/mediatek/Makefile | 1 +
2 files changed, 7 insertions(+)
--- a/drivers/dma/mediatek/Kconfig
+++ b/drivers/dma/mediatek/Kconfig
@@ -36,3 +36,9 @@ config MTK_UART_APDMA
When SERIAL_8250_MT6577 is enabled, and if you want to use DMA,
you can enable the config. The DMA engine can only be used
with MediaTek SoCs.
+
+config MTK_HSDMA
+ tristate "MTK HSDMA support"
+ depends on RALINK && SOC_MT7621
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
--- a/drivers/dma/mediatek/Makefile
+++ b/drivers/dma/mediatek/Makefile
@@ -2,3 +2,4 @@
obj-$(CONFIG_MTK_UART_APDMA) += mtk-uart-apdma.o
obj-$(CONFIG_MTK_HSDMA) += mtk-hsdma.o
obj-$(CONFIG_MTK_CQDMA) += mtk-cqdma.o
+obj-$(CONFIG_MTK_HSDMA) += hsdma-mt7621.o

57
target/linux/ramips/patches-6.6/801-DT-Add-documentation-for-gpio-ralink.patch Normal file
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@@ -0,0 +1,57 @@
From: John Crispin <blogic@openwrt.org>
Date: Sun, 28 Jul 2013 19:45:30 +0200
Subject: [PATCH 1/2] DT: Add documentation for gpio-ralink
Describe gpio-ralink binding.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
.../devicetree/bindings/gpio/gpio-ralink.txt | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-ralink.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-ralink.txt
@@ -0,0 +1,42 @@
+Ralink SoC GPIO controller bindings
+
+Required properties:
+- compatible:
+ - "ralink,rt2880-gpio" for Ralink controllers
+- #gpio-cells : Should be two.
+ - first cell is the pin number
+ - second cell is used to specify optional parameters (unused)
+- gpio-controller : Marks the device node as a GPIO controller
+- reg : Physical base address and length of the controller's registers
+- interrupt-parent: phandle to the INTC device node
+- interrupts : Specify the INTC interrupt number
+- ngpios : Specify the number of GPIOs
+- ralink,register-map : The register layout depends on the GPIO bank and actual
+ SoC type. Register offsets need to be in this order.
+ [ INT, EDGE, RENA, FENA, DATA, DIR, POL, SET, RESET, TOGGLE ]
+- interrupt-controller : marks this as an interrupt controller
+- #interrupt-cells : a standard two-cell interrupt flag, see
+ interrupt-controller/interrupts.txt
+
+Example:
+
+ gpio0: gpio@600 {
+ compatible = "ralink,rt2880-gpio";
+
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ reg = <0x600 0x34>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <6>;
+
+ ngpios = <24>;
+ ralink,register-map = [ 00 04 08 0c
+ 20 24 28 2c
+ 30 34 ];
+
+ };

275
target/linux/ramips/patches-6.6/802-GPIO-MIPS-ralink-add-gpio-driver-for-ralink-SoC.patch Normal file
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@@ -0,0 +1,275 @@
From: John Crispin <blogic@openwrt.org>
Date: Mon, 4 Aug 2014 20:36:29 +0200
Subject: [PATCH 2/2] GPIO: MIPS: ralink: add gpio driver for ralink SoC
Add gpio driver for Ralink SoC. This driver makes the gpio core on
RT2880, RT305x, rt3352, rt3662, rt3883, rt5350 and mt7620 work.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/gpio/Kconfig | 8 ++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-ralink.c | 230 +++++++++++++++++++++++++++++++++++++
3 files changed, 239 insertions(+)
create mode 100644 drivers/gpio/gpio-ralink.c
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -509,6 +509,14 @@ config GPIO_PXA
help
Say yes here to support the PXA GPIO device.
+config GPIO_RALINK
+ bool "Ralink GPIO Support"
+ depends on SOC_RT288X || SOC_RT305X || SOC_RT3883 || SOC_MT7620
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support the Ralink SoC GPIO device
+
config GPIO_RCAR
tristate "Renesas R-Car and RZ/G GPIO support"
depends on ARCH_RENESAS || COMPILE_TEST
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -130,6 +130,7 @@ obj-$(CONFIG_GPIO_PISOSR) += gpio-pisos
obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o
obj-$(CONFIG_GPIO_PMIC_EIC_SPRD) += gpio-pmic-eic-sprd.o
obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o
+obj-$(CONFIG_GPIO_RALINK) += gpio-ralink.o
obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o
obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o
obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o
--- /dev/null
+++ b/drivers/gpio/gpio-ralink.c
@@ -0,0 +1,230 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+
+enum ralink_gpio_reg {
+ GPIO_REG_INT = 0,
+ GPIO_REG_EDGE,
+ GPIO_REG_RENA,
+ GPIO_REG_FENA,
+ GPIO_REG_DATA,
+ GPIO_REG_DIR,
+ GPIO_REG_POL,
+ GPIO_REG_SET,
+ GPIO_REG_RESET,
+ GPIO_REG_TOGGLE,
+ GPIO_REG_MAX
+};
+
+struct ralink_gpio_chip {
+ struct gpio_chip chip;
+ u8 regs[GPIO_REG_MAX];
+
+ spinlock_t lock;
+ void __iomem *membase;
+ int gpio_irq;
+
+ u32 rising;
+ u32 falling;
+};
+
+static inline void rt_gpio_w32(struct ralink_gpio_chip *rg, u8 reg, u32 val)
+{
+ iowrite32(val, rg->membase + rg->regs[reg]);
+}
+
+static inline u32 rt_gpio_r32(struct ralink_gpio_chip *rg, u8 reg)
+{
+ return ioread32(rg->membase + rg->regs[reg]);
+}
+
+static irqreturn_t ralink_gpio_irq_handler(int irq, void *data)
+{
+ struct gpio_chip *gc = data;
+ struct ralink_gpio_chip *rg = gpiochip_get_data(gc);
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long pending;
+ int bit;
+
+ pending = rt_gpio_r32(rg, GPIO_REG_INT);
+ for_each_set_bit(bit, &pending, rg->chip.ngpio) {
+ generic_handle_domain_irq(gc->irq.domain, bit);
+ rt_gpio_w32(rg, GPIO_REG_INT, BIT(bit));
+ ret |= IRQ_HANDLED;
+ }
+
+ return ret;
+}
+
+static void ralink_gpio_irq_unmask(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct ralink_gpio_chip *rg = gpiochip_get_data(gc);
+ unsigned long flags;
+ u32 rise, fall;
+
+ rise = rt_gpio_r32(rg, GPIO_REG_RENA);
+ fall = rt_gpio_r32(rg, GPIO_REG_FENA);
+
+ spin_lock_irqsave(&rg->lock, flags);
+ rt_gpio_w32(rg, GPIO_REG_RENA, rise | (BIT(d->hwirq) & rg->rising));
+ rt_gpio_w32(rg, GPIO_REG_FENA, fall | (BIT(d->hwirq) & rg->falling));
+ spin_unlock_irqrestore(&rg->lock, flags);
+}
+
+static void ralink_gpio_irq_mask(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct ralink_gpio_chip *rg = gpiochip_get_data(gc);
+ unsigned long flags;
+ u32 rise, fall;
+
+ rise = rt_gpio_r32(rg, GPIO_REG_RENA);
+ fall = rt_gpio_r32(rg, GPIO_REG_FENA);
+
+ spin_lock_irqsave(&rg->lock, flags);
+ rt_gpio_w32(rg, GPIO_REG_FENA, fall & ~BIT(d->hwirq));
+ rt_gpio_w32(rg, GPIO_REG_RENA, rise & ~BIT(d->hwirq));
+ spin_unlock_irqrestore(&rg->lock, flags);
+}
+
+static int ralink_gpio_irq_type(struct irq_data *d, unsigned int type)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct ralink_gpio_chip *rg = gpiochip_get_data(gc);
+ u32 mask = BIT(d->hwirq);
+
+ if (type == IRQ_TYPE_PROBE) {
+ if ((rg->rising | rg->falling) & mask)
+ return 0;
+
+ type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
+ }
+
+ if (type & IRQ_TYPE_EDGE_RISING)
+ rg->rising |= mask;
+ else
+ rg->rising &= ~mask;
+
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ rg->falling |= mask;
+ else
+ rg->falling &= ~mask;
+
+ return 0;
+}
+
+static struct irq_chip ralink_gpio_irq_chip = {
+ .name = "gpio-ralink",
+ .irq_unmask = ralink_gpio_irq_unmask,
+ .irq_mask = ralink_gpio_irq_mask,
+ .irq_mask_ack = ralink_gpio_irq_mask,
+ .irq_set_type = ralink_gpio_irq_type,
+ .flags = IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
+static int ralink_gpio_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct ralink_gpio_chip *rg;
+ int ret;
+
+ rg = devm_kzalloc(dev, sizeof(struct ralink_gpio_chip), GFP_KERNEL);
+ if (!rg)
+ return -ENOMEM;
+
+ rg->membase = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(rg->membase))
+ return PTR_ERR(rg->membase);
+
+ if (of_property_read_u8_array(np, "ralink,register-map",
+ rg->regs, GPIO_REG_MAX)) {
+ dev_err(dev, "failed to read register definition\n");
+ return -EINVAL;
+ }
+
+ spin_lock_init(&rg->lock);
+
+ ret = bgpio_init(&rg->chip, dev, 4,
+ rg->membase + rg->regs[GPIO_REG_DATA],
+ rg->membase + rg->regs[GPIO_REG_SET],
+ rg->membase + rg->regs[GPIO_REG_RESET],
+ rg->membase + rg->regs[GPIO_REG_DIR],
+ NULL, 0);
+ if (ret)
+ return dev_err_probe(dev, ret, "bgpio_init() failed\n");
+
+ /* set polarity to low for all lines */
+ rt_gpio_w32(rg, GPIO_REG_POL, 0);
+
+ rg->gpio_irq = platform_get_irq(pdev, 0);
+ if (rg->gpio_irq < 0)
+ return rg->gpio_irq;
+
+ if (rg->gpio_irq) {
+ struct gpio_irq_chip *girq;
+
+ /*
+ * Directly request the irq here instead of passing
+ * a flow-handler because the irq is shared.
+ */
+ ret = devm_request_irq(dev, rg->gpio_irq,
+ ralink_gpio_irq_handler, IRQF_SHARED,
+ NULL, &rg->chip);
+ if (ret) {
+ dev_err(dev, "Error requesting IRQ %d: %d\n",
+ rg->gpio_irq, ret);
+ return ret;
+ }
+
+ girq = &rg->chip.irq;
+ gpio_irq_chip_set_chip(girq, &ralink_gpio_irq_chip);
+ /* This will let us handle the parent IRQ in the driver */
+ girq->parent_handler = NULL;
+ girq->num_parents = 0;
+ girq->parents = NULL;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_simple_irq;
+
+ rt_gpio_w32(rg, GPIO_REG_RENA, 0);
+ rt_gpio_w32(rg, GPIO_REG_FENA, 0);
+ }
+
+ return devm_gpiochip_add_data(dev, &rg->chip, rg);
+}
+
+static const struct of_device_id ralink_gpio_match[] = {
+ { .compatible = "ralink,rt2880-gpio" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ralink_gpio_match);
+
+static struct platform_driver ralink_gpio_driver = {
+ .probe = ralink_gpio_probe,
+ .driver = {
+ .name = "ralink_gpio",
+ .of_match_table = ralink_gpio_match,
+ },
+};
+
+static int __init ralink_gpio_init(void)
+{
+ return platform_driver_register(&ralink_gpio_driver);
+}
+
+subsys_initcall(ralink_gpio_init);

39
target/linux/ramips/patches-6.6/804-dma-ralink-add-back-gdma-driver.patch Normal file
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@@ -0,0 +1,39 @@
From: Shiji Yang <yangshiji66@outlook.com>
Date: Mon, 27 May 2024 08:25:57 +0000
Subject: [PATCH] dma: ralink: add back gdma driver
The upstream staging driver has been removed[1] since kernel v5.17.
[1] 5bfc10690c6c ("staging: ralink-gdma: remove driver from tree")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
---
drivers/dma/Kconfig | 6 ++++++
drivers/dma/Makefile | 1 +
2 files changed, 7 insertions(+)
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -532,6 +532,12 @@ config PLX_DMA
These are exposed via extra functions on the switch's
upstream port. Each function exposes one DMA channel.
+config RALINK_GDMA
+ tristate "RALINK GDMA support"
+ depends on RALINK && !SOC_RT288X
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+
config STE_DMA40
bool "ST-Ericsson DMA40 support"
depends on ARCH_U8500
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -64,6 +64,7 @@ obj-$(CONFIG_PL330_DMA) += pl330.o
obj-$(CONFIG_PLX_DMA) += plx_dma.o
obj-$(CONFIG_PPC_BESTCOMM) += bestcomm/
obj-$(CONFIG_PXA_DMA) += pxa_dma.o
+obj-$(CONFIG_RALINK_GDMA) += ralink-gdma.o
obj-$(CONFIG_RENESAS_DMA) += sh/
obj-$(CONFIG_SF_PDMA) += sf-pdma/
obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o

1190
target/linux/ramips/patches-6.6/805-01-v6.9-pinctrl-Add-driver-for-Awinic-AW9523-B-I2C-GPIO-Expa.patch Normal file
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File diff suppressed because it is too large Load Diff

26
target/linux/ramips/patches-6.6/805-02-v6.9-pinctrl-aw9523-Add-proper-terminator.patch Normal file
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@@ -0,0 +1,26 @@
From 52279c3d50d964c646692c42a0db87ef7bb451cc Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 6 Mar 2024 08:54:25 +0100
Subject: [PATCH] pinctrl: aw9523: Add proper terminator
The of_device_id array needs to be terminated with a NULL
entry.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403061147.85XYVsk3-lkp@intel.com/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240306-fix-aw9523-terminator-v1-1-13f90f87a7f6@linaro.org
---
drivers/pinctrl/pinctrl-aw9523.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -1099,6 +1099,7 @@ MODULE_DEVICE_TABLE(i2c, aw9523_i2c_id_t
static const struct of_device_id of_aw9523_i2c_match[] = {
{ .compatible = "awinic,aw9523-pinctrl", },
+ { }
};
MODULE_DEVICE_TABLE(of, of_aw9523_i2c_match);

41
target/linux/ramips/patches-6.6/805-03-v6.10-pinctrl-aw9523-Destroy-mutex-on-remove.patch Normal file
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@@ -0,0 +1,41 @@
From e5e8a58023707472e5dbe9bc7b473a8703b401e0 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:15 +0200
Subject: [PATCH] pinctrl: aw9523: Destroy mutex on ->remove()
If aw9523_hw_init() fails on ->remove() the mutex left alive.
Destroy it in that case as well. While at it, remove never
true check at the beginning of the function.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-2-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -1067,10 +1067,6 @@ err_disable_vregs:
static void aw9523_remove(struct i2c_client *client)
{
struct aw9523 *awi = i2c_get_clientdata(client);
- int ret;
-
- if (!awi)
- return;
/*
* If the chip VIO is connected to a regulator that we can turn
@@ -1082,10 +1078,8 @@ static void aw9523_remove(struct i2c_cli
regulator_disable(awi->vio_vreg);
} else {
mutex_lock(&awi->i2c_lock);
- ret = aw9523_hw_init(awi);
+ aw9523_hw_init(awi);
mutex_unlock(&awi->i2c_lock);
- if (ret)
- return;
}
mutex_destroy(&awi->i2c_lock);

62
target/linux/ramips/patches-6.6/805-04-v6.10-pinctrl-aw9523-Use-correct-error-code-for-not-suppor.patch Normal file
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@@ -0,0 +1,62 @@
From f91eafcb18e096108cd19d24ab71a0db5bc12416 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:16 +0200
Subject: [PATCH] pinctrl: aw9523: Use correct error code for not supported
functionality
The pin control subsystem internally uses ENOTSUPP for the not supported
functionality. The checkpatch is false positive about this error code.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-3-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -6,6 +6,7 @@
*/
#include <linux/bitfield.h>
+#include <linux/errno.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
#include <linux/i2c.h>
@@ -239,7 +240,7 @@ static int aw9523_pcfg_param_to_reg(enum
reg = AW9523_REG_OUT_STATE(pin);
break;
default:
- return -EOPNOTSUPP;
+ return -ENOTSUPP;
}
*r = reg;
@@ -290,7 +291,7 @@ static int aw9523_pconf_get(struct pinct
val = FIELD_GET(AW9523_GCR_GPOMD_MASK, val);
break;
default:
- return -EOPNOTSUPP;
+ return -ENOTSUPP;
}
if (val < 1)
return -EINVAL;
@@ -344,7 +345,7 @@ static int aw9523_pconf_set(struct pinct
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
/* Open-Drain is supported only on port 0 */
if (pin >= AW9523_PINS_PER_PORT) {
- rc = -EOPNOTSUPP;
+ rc = -ENOTSUPP;
goto end;
}
mask = AW9523_GCR_GPOMD_MASK;
@@ -361,7 +362,7 @@ static int aw9523_pconf_set(struct pinct
val = AW9523_GCR_GPOMD_MASK;
break;
default:
- rc = -EOPNOTSUPP;
+ rc = -ENOTSUPP;
goto end;
}

47
target/linux/ramips/patches-6.6/805-05-v6.10-pinctrl-aw9523-Always-try-both-ports-in-aw9523_gpio_.patch Normal file
View File

@@ -0,0 +1,47 @@
From 091655b9285d837db520381924c689bd5dc5d286 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:17 +0200
Subject: [PATCH] pinctrl: aw9523: Always try both ports in
aw9523_gpio_set_multiple()
The ports are equivalent from the user's point of view. Don't limit
trying them both if writing to one fails.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-4-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -653,7 +653,7 @@ static void aw9523_gpio_set_multiple(str
struct aw9523 *awi = gpiochip_get_data(chip);
u8 mask_lo, mask_hi, bits_lo, bits_hi;
unsigned int reg;
- int ret = 0;
+ int ret;
mask_lo = *mask & U8_MAX;
mask_hi = (*mask >> 8) & U8_MAX;
@@ -663,10 +663,8 @@ static void aw9523_gpio_set_multiple(str
bits_hi = (*bits >> 8) & U8_MAX;
ret = regmap_write_bits(awi->regmap, reg, mask_hi, bits_hi);
- if (ret) {
+ if (ret)
dev_warn(awi->dev, "Cannot write port1 out level\n");
- goto out;
- }
}
if (mask_lo) {
reg = AW9523_REG_OUT_STATE(0);
@@ -675,7 +673,6 @@ static void aw9523_gpio_set_multiple(str
if (ret)
dev_warn(awi->dev, "Cannot write port0 out level\n");
}
-out:
mutex_unlock(&awi->i2c_lock);
}

72
target/linux/ramips/patches-6.6/805-06-v6.10-pinctrl-aw9523-Make-use-of-struct-pinfunction-and-PI.patch Normal file
View File

@@ -0,0 +1,72 @@
From 418ee9488ff74ab4ada3a539a2840dda9e56f847 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 29 Mar 2024 12:55:18 +0200
Subject: [PATCH] pinctrl: aw9523: Make use of struct pinfunction and
PINCTRL_PINFUNCTION()
Since pin control provides a generic data type and a macro for
the pin function definition, use them in the driver.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-5-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 32 ++++++--------------------------
1 file changed, 6 insertions(+), 26 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -67,18 +67,6 @@ struct aw9523_irq {
};
/*
- * struct aw9523_pinmux - Pin mux params
- * @name: Name of the mux
- * @grps: Groups of the mux
- * @num_grps: Number of groups (sizeof array grps)
- */
-struct aw9523_pinmux {
- const char *name;
- const char * const *grps;
- const u8 num_grps;
-};
-
-/*
* struct aw9523 - Main driver structure
* @dev: device handle
* @regmap: regmap handle for current device
@@ -158,17 +146,9 @@ static const char * const gpio_pwm_group
};
/* Warning: Do NOT reorder this array */
-static const struct aw9523_pinmux aw9523_pmx[] = {
- {
- .name = "pwm",
- .grps = gpio_pwm_groups,
- .num_grps = ARRAY_SIZE(gpio_pwm_groups),
- },
- {
- .name = "gpio",
- .grps = gpio_pwm_groups,
- .num_grps = ARRAY_SIZE(gpio_pwm_groups),
- },
+static const struct pinfunction aw9523_pmx[] = {
+ PINCTRL_PINFUNCTION("pwm", gpio_pwm_groups, ARRAY_SIZE(gpio_pwm_groups)),
+ PINCTRL_PINFUNCTION("gpio", gpio_pwm_groups, ARRAY_SIZE(gpio_pwm_groups)),
};
static int aw9523_pmx_get_funcs_count(struct pinctrl_dev *pctl)
@@ -184,10 +164,10 @@ static const char *aw9523_pmx_get_fname(
static int aw9523_pmx_get_groups(struct pinctrl_dev *pctl, unsigned int sel,
const char * const **groups,
- unsigned int * const num_groups)
+ unsigned int * const ngroups)
{
- *groups = aw9523_pmx[sel].grps;
- *num_groups = aw9523_pmx[sel].num_grps;
+ *groups = aw9523_pmx[sel].groups;
+ *ngroups = aw9523_pmx[sel].ngroups;
return 0;
}

50
target/linux/ramips/patches-6.6/805-07-v6.10-pinctrl-aw9523-Use-temporary-variable-for-HW-IRQ-num.patch Normal file
View File

@@ -0,0 +1,50 @@
From 66413f0468d35adb352c76bc286bf6f6746ba354 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:19 +0200
Subject: [PATCH] pinctrl: aw9523: Use temporary variable for HW IRQ number
There are two different ways on how to get HW IRQ number in some functions.
Unify that by using temporary variable and irqd_to_hwirq() call.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-6-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -428,12 +428,12 @@ static int aw9523_gpio_irq_type(struct i
static void aw9523_irq_mask(struct irq_data *d)
{
struct aw9523 *awi = gpiochip_get_data(irq_data_get_irq_chip_data(d));
- unsigned int n = d->hwirq % AW9523_PINS_PER_PORT;
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+ unsigned int n = hwirq % AW9523_PINS_PER_PORT;
- regmap_update_bits(awi->regmap,
- AW9523_REG_INTR_DIS(d->hwirq),
+ regmap_update_bits(awi->regmap, AW9523_REG_INTR_DIS(hwirq),
BIT(n), BIT(n));
- gpiochip_disable_irq(&awi->gpio, irqd_to_hwirq(d));
+ gpiochip_disable_irq(&awi->gpio, hwirq);
}
/*
@@ -446,11 +446,11 @@ static void aw9523_irq_mask(struct irq_d
static void aw9523_irq_unmask(struct irq_data *d)
{
struct aw9523 *awi = gpiochip_get_data(irq_data_get_irq_chip_data(d));
- unsigned int n = d->hwirq % AW9523_PINS_PER_PORT;
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+ unsigned int n = hwirq % AW9523_PINS_PER_PORT;
- gpiochip_enable_irq(&awi->gpio, irqd_to_hwirq(d));
- regmap_update_bits(awi->regmap,
- AW9523_REG_INTR_DIS(d->hwirq),
+ gpiochip_enable_irq(&awi->gpio, hwirq);
+ regmap_update_bits(awi->regmap, AW9523_REG_INTR_DIS(hwirq),
BIT(n), 0);
}

61
target/linux/ramips/patches-6.6/805-08-v6.10-pinctrl-aw9523-Get-rid-of-redundant-U8_MAX-pieces.patch Normal file
View File

@@ -0,0 +1,61 @@
From 4210ef801a248223a0ea5f47b5446081b4925e10 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:20 +0200
Subject: [PATCH] pinctrl: aw9523: Get rid of redundant ' & U8_MAX' pieces
When the variable is declared as u8, no need to perform ' & U8_MAX'
as it's implied anyway.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-7-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -603,7 +603,7 @@ static int aw9523_gpio_get_multiple(stru
mutex_lock(&awi->i2c_lock);
/* Port 0 (gpio 0-7) */
- m = *mask & U8_MAX;
+ m = *mask;
if (m) {
ret = _aw9523_gpio_get_multiple(awi, 0, &state, m);
if (ret)
@@ -612,7 +612,7 @@ static int aw9523_gpio_get_multiple(stru
*bits = state;
/* Port 1 (gpio 8-15) */
- m = (*mask >> 8) & U8_MAX;
+ m = *mask >> 8;
if (m) {
ret = _aw9523_gpio_get_multiple(awi, AW9523_PINS_PER_PORT,
&state, m);
@@ -635,20 +635,20 @@ static void aw9523_gpio_set_multiple(str
unsigned int reg;
int ret;
- mask_lo = *mask & U8_MAX;
- mask_hi = (*mask >> 8) & U8_MAX;
+ mask_lo = *mask;
+ mask_hi = *mask >> 8;
+ bits_lo = *bits;
+ bits_hi = *bits >> 8;
+
mutex_lock(&awi->i2c_lock);
if (mask_hi) {
reg = AW9523_REG_OUT_STATE(AW9523_PINS_PER_PORT);
- bits_hi = (*bits >> 8) & U8_MAX;
-
ret = regmap_write_bits(awi->regmap, reg, mask_hi, bits_hi);
if (ret)
dev_warn(awi->dev, "Cannot write port1 out level\n");
}
if (mask_lo) {
reg = AW9523_REG_OUT_STATE(0);
- bits_lo = *bits & U8_MAX;
ret = regmap_write_bits(awi->regmap, reg, mask_lo, bits_lo);
if (ret)
dev_warn(awi->dev, "Cannot write port0 out level\n");

52
target/linux/ramips/patches-6.6/805-09-v6.10-pinctrl-aw9523-Remove-unused-irqchip-field-in-struct.patch Normal file
View File

@@ -0,0 +1,52 @@
From 6bf270863ade776485d1c6bdb8f69d642b0e5f64 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:21 +0200
Subject: [PATCH] pinctrl: aw9523: Remove unused irqchip field in struct
aw9523_irq
The irqchip field is allocated, assigned but never used. Remove it.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-8-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 8 --------
1 file changed, 8 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -57,12 +57,10 @@
/*
* struct aw9523_irq - Interrupt controller structure
* @lock: mutex locking for the irq bus
- * @irqchip: structure holding irqchip params
* @cached_gpio: stores the previous gpio status for bit comparison
*/
struct aw9523_irq {
struct mutex lock;
- struct irq_chip *irqchip;
u16 cached_gpio;
};
@@ -805,21 +803,15 @@ static int aw9523_init_irq(struct aw9523
{
struct device *dev = awi->dev;
struct gpio_irq_chip *girq;
- struct irq_chip *irqchip;
int ret;
if (!device_property_read_bool(dev, "interrupt-controller"))
return 0;
- irqchip = devm_kzalloc(dev, sizeof(*irqchip), GFP_KERNEL);
- if (!irqchip)
- return -ENOMEM;
-
awi->irq = devm_kzalloc(dev, sizeof(*awi->irq), GFP_KERNEL);
if (!awi->irq)
return -ENOMEM;
- awi->irq->irqchip = irqchip;
mutex_init(&awi->irq->lock);
ret = devm_request_threaded_irq(dev, irq, NULL, aw9523_irq_thread_func,

40
target/linux/ramips/patches-6.6/805-10-v6.10-pinctrl-aw9523-Make-use-of-dev_err_probe.patch Normal file
View File

@@ -0,0 +1,40 @@
From c567b00cc3d73f3ce4e92126731545d177262090 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 29 Mar 2024 12:55:22 +0200
Subject: [PATCH] pinctrl: aw9523: Make use of dev_err_probe()
Simplify the error handling in probe function by switching from
dev_err() to dev_err_probe().
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-9-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -816,10 +816,8 @@ static int aw9523_init_irq(struct aw9523
ret = devm_request_threaded_irq(dev, irq, NULL, aw9523_irq_thread_func,
IRQF_ONESHOT, dev_name(dev), awi);
- if (ret) {
- dev_err(dev, "Failed to request irq %d\n", irq);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to request irq %d\n", irq);
girq = &awi->gpio.irq;
gpio_irq_chip_set_chip(girq, &aw9523_irq_chip);
@@ -1016,8 +1014,7 @@ static int aw9523_probe(struct i2c_clien
awi->pctl = devm_pinctrl_register(dev, pdesc, awi);
if (IS_ERR(awi->pctl)) {
- ret = PTR_ERR(awi->pctl);
- dev_err(dev, "Cannot register pinctrl: %d", ret);
+ ret = dev_err_probe(dev, PTR_ERR(awi->pctl), "Cannot register pinctrl");
goto err_disable_vregs;
}

41
target/linux/ramips/patches-6.6/805-11-v6.10-pinctrl-aw9523-Sort-headers-and-group-pinctrl.patch Normal file
View File

@@ -0,0 +1,41 @@
From 7b8b9b5450b89d01e4b8f120b903cee85b529231 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:23 +0200
Subject: [PATCH] pinctrl: aw9523: Sort headers and group pinctrl/*
One header was misplaced and group pinctrl/* ones to show the relation
with the pin control subsystem.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-10-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -13,17 +13,18 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <linux/mutex.h>
#include <linux/module.h>
-#include <linux/pinctrl/pinconf.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinmux.h>
-#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/mutex.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+
#define AW9523_MAX_FUNCS 2
#define AW9523_NUM_PORTS 2
#define AW9523_PINS_PER_PORT 8

62
target/linux/ramips/patches-6.6/805-12-v6.10-pinctrl-aw9523-Fix-indentation-in-a-few-places.patch Normal file
View File

@@ -0,0 +1,62 @@
From 4aad0ad20f4ea80180a3e58b04b701728541c0f7 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Fri, 29 Mar 2024 12:55:24 +0200
Subject: [PATCH] pinctrl: aw9523: Fix indentation in a few places
In the comment, function prototype, and array of strings indentation
is kinda broken. Reindent that.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Message-ID: <20240329105634.712457-11-andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -1,8 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Awinic AW9523B i2c pin controller driver
- * Copyright (c) 2020, AngeloGioacchino Del Regno
- * <angelogioacchino.delregno@somainline.org>
+ * Copyright (c) 2020, AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
*/
#include <linux/bitfield.h>
@@ -139,9 +138,10 @@ static const struct pinctrl_ops aw9523_p
};
static const char * const gpio_pwm_groups[] = {
- "gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5",
- "gpio6", "gpio7", "gpio8", "gpio9", "gpio10", "gpio11",
- "gpio12", "gpio13", "gpio14", "gpio15"
+ "gpio0", "gpio1", "gpio2", "gpio3", /* 0-3 */
+ "gpio4", "gpio5", "gpio6", "gpio7", /* 4-7 */
+ "gpio8", "gpio9", "gpio10", "gpio11", /* 8-11 */
+ "gpio12", "gpio13", "gpio14", "gpio15", /* 11-15 */
};
/* Warning: Do NOT reorder this array */
@@ -388,8 +388,8 @@ static int aw9523_get_pin_direction(stru
*
* Return: Zero for success or negative number for error
*/
-static int aw9523_get_port_state(struct regmap *regmap, u8 pin,
- u8 regbit, unsigned int *state)
+static int aw9523_get_port_state(struct regmap *regmap, u8 pin, u8 regbit,
+ unsigned int *state)
{
u8 reg;
int dir;
@@ -984,8 +984,7 @@ static int aw9523_probe(struct i2c_clien
}
mutex_init(&awi->i2c_lock);
- lockdep_set_subclass(&awi->i2c_lock,
- i2c_adapter_depth(client->adapter));
+ lockdep_set_subclass(&awi->i2c_lock, i2c_adapter_depth(client->adapter));
pdesc = devm_kzalloc(dev, sizeof(*pdesc), GFP_KERNEL);
if (!pdesc)

45
target/linux/ramips/patches-6.6/808-pinctrl-mtmips-support-requesting-different-function.patch Normal file
View File

@@ -0,0 +1,45 @@
From: Shiji Yang <yangshiji66@outlook.com>
Date: Wed, 26 Jul 2023 01:32:55 +0800
Subject: [PATCH] pinctrl: mtmips: support requesting different functions for
same group
Sometimes pinctrl consumers may request different functions for the
same pin group in different situations. This patch can help to reset
the group function flag when requesting a different function.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
---
drivers/pinctrl/mediatek/pinctrl-mtmips.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
--- a/drivers/pinctrl/mediatek/pinctrl-mtmips.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtmips.c
@@ -123,11 +123,24 @@ static int mtmips_pmx_group_enable(struc
int i;
int shift;
- /* dont allow double use */
+ /*
+ * for the same pin group, if request a different function,
+ * then clear the group function flag and continue, else exit.
+ */
if (p->groups[group].enabled) {
- dev_err(p->dev, "%s is already enabled\n",
- p->groups[group].name);
- return 0;
+ for (i = 0; i < p->groups[group].func_count; i++) {
+ if (p->groups[group].func[i].enabled == 1) {
+ if (!strcmp(p->func[func]->name,
+ p->groups[group].func[i].name))
+ return 0;
+ p->groups[group].func[i].enabled = 0;
+ break;
+ }
+ }
+
+ /* exit if request the "gpio" function again */
+ if (i == p->groups[group].func_count && func == 0)
+ return 0;
}
p->groups[group].enabled = 1;

244
target/linux/ramips/patches-6.6/810-uvc-add-iPassion-iP2970-support.patch Normal file
View File

@@ -0,0 +1,244 @@
From 975e76214cd2516eb6cfff4c3eec581872645e88 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 19 Sep 2013 01:50:59 +0200
Subject: [PATCH 31/53] uvc: add iPassion iP2970 support
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/media/usb/uvc/uvc_driver.c | 12 +++
drivers/media/usb/uvc/uvc_status.c | 2 +
drivers/media/usb/uvc/uvc_video.c | 147 ++++++++++++++++++++++++++++++++++++
drivers/media/usb/uvc/uvcvideo.h | 5 +-
4 files changed, 165 insertions(+), 1 deletion(-)
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -3249,6 +3249,18 @@ static const struct usb_device_id uvc_id
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* iPassion iP2970 */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x1B3B,
+ .idProduct = 0x2970,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_MINMAX
+ | UVC_QUIRK_STREAM_NO_FID
+ | UVC_QUIRK_MOTION
+ | UVC_QUIRK_SINGLE_ISO },
/* Generic USB Video Class */
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) },
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) },
--- a/drivers/media/usb/uvc/uvc_status.c
+++ b/drivers/media/usb/uvc/uvc_status.c
@@ -228,6 +228,7 @@ static void uvc_status_complete(struct u
if (uvc_event_control(urb, dev->status, len))
/* The URB will be resubmitted in work context. */
return;
+ dev->motion = 1;
break;
}
@@ -273,6 +274,7 @@ int uvc_status_init(struct uvc_device *d
}
pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress);
+ dev->motion = 0;
/*
* For high-speed interrupt endpoints, the bInterval value is used as
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -19,6 +19,11 @@
#include <linux/wait.h>
#include <linux/atomic.h>
#include <asm/unaligned.h>
+#include <linux/skbuff.h>
+#include <linux/kobject.h>
+#include <linux/netlink.h>
+#include <linux/kobject.h>
+#include <linux/workqueue.h>
#include <media/v4l2-common.h>
@@ -1275,9 +1280,149 @@ static void uvc_video_decode_data(struct
uvc_urb->async_operations++;
}
+struct bh_priv {
+ unsigned long seen;
+};
+
+struct bh_event {
+ const char *name;
+ struct sk_buff *skb;
+ struct work_struct work;
+};
+
+#define BH_ERR(fmt, args...) printk(KERN_ERR "%s: " fmt, "webcam", ##args )
+#define BH_DBG(fmt, args...) do {} while (0)
+#define BH_SKB_SIZE 2048
+
+extern u64 uevent_next_seqnum(void);
+static int seen = 0;
+
+static int bh_event_add_var(struct bh_event *event, int argv,
+ const char *format, ...)
+{
+ static char buf[128];
+ char *s;
+ va_list args;
+ int len;
+
+ if (argv)
+ return 0;
+
+ va_start(args, format);
+ len = vsnprintf(buf, sizeof(buf), format, args);
+ va_end(args);
+
+ if (len >= sizeof(buf)) {
+ BH_ERR("buffer size too small\n");
+ WARN_ON(1);
+ return -ENOMEM;
+ }
+
+ s = skb_put(event->skb, len + 1);
+ strcpy(s, buf);
+
+ BH_DBG("added variable '%s'\n", s);
+
+ return 0;
+}
+
+static int motion_hotplug_fill_event(struct bh_event *event)
+{
+ int s = jiffies;
+ int ret;
+
+ if (!seen)
+ seen = jiffies;
+
+ ret = bh_event_add_var(event, 0, "HOME=%s", "/");
+ if (ret)
+ return ret;
+
+ ret = bh_event_add_var(event, 0, "PATH=%s",
+ "/sbin:/bin:/usr/sbin:/usr/bin");
+ if (ret)
+ return ret;
+
+ ret = bh_event_add_var(event, 0, "SUBSYSTEM=usb");
+ if (ret)
+ return ret;
+
+ ret = bh_event_add_var(event, 0, "ACTION=motion");
+ if (ret)
+ return ret;
+
+ ret = bh_event_add_var(event, 0, "SEEN=%d", s - seen);
+ if (ret)
+ return ret;
+ seen = s;
+
+ ret = bh_event_add_var(event, 0, "SEQNUM=%llu", uevent_next_seqnum());
+
+ return ret;
+}
+
+static void motion_hotplug_work(struct work_struct *work)
+{
+ struct bh_event *event = container_of(work, struct bh_event, work);
+ int ret = 0;
+
+ event->skb = alloc_skb(BH_SKB_SIZE, GFP_KERNEL);
+ if (!event->skb)
+ goto out_free_event;
+
+ ret = bh_event_add_var(event, 0, "%s@", "add");
+ if (ret)
+ goto out_free_skb;
+
+ ret = motion_hotplug_fill_event(event);
+ if (ret)
+ goto out_free_skb;
+
+ NETLINK_CB(event->skb).dst_group = 1;
+ broadcast_uevent(event->skb, 0, 1, GFP_KERNEL);
+
+out_free_skb:
+ if (ret) {
+ BH_ERR("work error %d\n", ret);
+ kfree_skb(event->skb);
+ }
+out_free_event:
+ kfree(event);
+}
+
+static int motion_hotplug_create_event(void)
+{
+ struct bh_event *event;
+
+ event = kzalloc(sizeof(*event), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;
+
+ event->name = "motion";
+
+ INIT_WORK(&event->work, (void *)(void *)motion_hotplug_work);
+ schedule_work(&event->work);
+
+ return 0;
+}
+
+#define MOTION_FLAG_OFFSET 4
static void uvc_video_decode_end(struct uvc_streaming *stream,
struct uvc_buffer *buf, const u8 *data, int len)
{
+ if ((stream->dev->quirks & UVC_QUIRK_MOTION) &&
+ (data[len - 2] == 0xff) && (data[len - 1] == 0xd9)) {
+ u8 *mem;
+ buf->state = UVC_BUF_STATE_READY;
+ mem = (u8 *) (buf->mem + MOTION_FLAG_OFFSET);
+ if ( stream->dev->motion ) {
+ stream->dev->motion = 0;
+ motion_hotplug_create_event();
+ } else {
+ *mem &= 0x7f;
+ }
+ }
+
/* Mark the buffer as done if the EOF marker is set. */
if (data[1] & UVC_STREAM_EOF && buf->bytesused != 0) {
uvc_dbg(stream->dev, FRAME, "Frame complete (EOF found)\n");
@@ -1859,6 +2004,8 @@ static int uvc_init_video_isoc(struct uv
if (npackets == 0)
return -ENOMEM;
+ if (stream->dev->quirks & UVC_QUIRK_SINGLE_ISO)
+ npackets = 1;
size = npackets * psize;
for_each_uvc_urb(uvc_urb, stream) {
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -76,6 +76,8 @@
#define UVC_QUIRK_NO_RESET_RESUME 0x00004000
#define UVC_QUIRK_DISABLE_AUTOSUSPEND 0x00008000
#define UVC_QUIRK_INVALID_DEVICE_SOF 0x00010000
+#define UVC_QUIRK_MOTION 0x00020000
+#define UVC_QUIRK_SINGLE_ISO 0x00040000
/* Format flags */
#define UVC_FMT_FLAG_COMPRESSED 0x00000001
@@ -585,6 +587,7 @@ struct uvc_device {
struct input_dev *input;
char input_phys[64];
+ int motion;
struct uvc_ctrl_work {
struct work_struct work;

44
target/linux/ramips/patches-6.6/820-DT-Add-documentation-for-spi-rt2880.patch Normal file
View File

@@ -0,0 +1,44 @@
From da6015e7f19d749f135f7ac55c4ec47b06faa868 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Fri, 9 Aug 2013 20:12:59 +0200
Subject: [PATCH 41/53] DT: Add documentation for spi-rt2880
Describe the SPI master found on the MIPS based Ralink RT2880 SoC.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
.../devicetree/bindings/spi/spi-rt2880.txt | 28 ++++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/spi-rt2880.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-rt2880.txt
@@ -0,0 +1,28 @@
+Ralink SoC RT2880 SPI master controller.
+
+This SPI controller is found on most wireless SoCs made by ralink.
+
+Required properties:
+- compatible : "ralink,rt2880-spi"
+- reg : The register base for the controller.
+- #address-cells : <1>, as required by generic SPI binding.
+- #size-cells : <0>, also as required by generic SPI binding.
+
+Child nodes as per the generic SPI binding.
+
+Example:
+
+ spi@b00 {
+ compatible = "ralink,rt2880-spi";
+ reg = <0xb00 0x100>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ m25p80@0 {
+ compatible = "m25p80";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+ };
+ };
+

517
target/linux/ramips/patches-6.6/821-SPI-ralink-add-Ralink-SoC-spi-driver.patch Normal file
View File

@@ -0,0 +1,517 @@
From 683af4ebb91a1600df1946ac4769d916b8a1be65 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 11:15:12 +0100
Subject: [PATCH 42/53] SPI: ralink: add Ralink SoC spi driver
Add the driver needed to make SPI work on Ralink SoC.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: John Crispin <blogic@openwrt.org>
---
drivers/spi/Kconfig | 6 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-rt2880.c | 530 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 537 insertions(+)
create mode 100644 drivers/spi/spi-rt2880.c
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -895,6 +895,12 @@ config SPI_QCOM_GENI
This driver can also be built as a module. If so, the module
will be called spi-geni-qcom.
+config SPI_RT2880
+ tristate "Ralink RT288x SPI Controller"
+ depends on RALINK
+ help
+ This selects a driver for the Ralink RT288x/RT305x SPI Controller.
+
config SPI_S3C64XX
tristate "Samsung S3C64XX/Exynos SoC series type SPI"
depends on (PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST)
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -117,6 +117,7 @@ obj-$(CONFIG_SPI_RB4XX) += spi-rb4xx.o
obj-$(CONFIG_MACH_REALTEK_RTL) += spi-realtek-rtl.o
obj-$(CONFIG_SPI_RPCIF) += spi-rpc-if.o
obj-$(CONFIG_SPI_RSPI) += spi-rspi.o
+obj-$(CONFIG_SPI_RT2880) += spi-rt2880.o
obj-$(CONFIG_SPI_RZV2M_CSI) += spi-rzv2m-csi.o
obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o
obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o
--- /dev/null
+++ b/drivers/spi/spi-rt2880.c
@@ -0,0 +1,473 @@
+/*
+ * spi-rt2880.c -- Ralink RT288x/RT305x SPI controller driver
+ *
+ * Copyright (C) 2011 Sergiy <piratfm@gmail.com>
+ * Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Some parts are based on spi-orion.c:
+ * Author: Shadi Ammouri <shadi@marvell.com>
+ * Copyright (C) 2007-2008 Marvell Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/reset.h>
+#include <linux/spi/spi.h>
+#include <linux/platform_device.h>
+
+#define DRIVER_NAME "spi-rt2880"
+
+#define RAMIPS_SPI_STAT 0x00
+#define RAMIPS_SPI_CFG 0x10
+#define RAMIPS_SPI_CTL 0x14
+#define RAMIPS_SPI_DATA 0x20
+#define RAMIPS_SPI_ADDR 0x24
+#define RAMIPS_SPI_BS 0x28
+#define RAMIPS_SPI_USER 0x2C
+#define RAMIPS_SPI_TXFIFO 0x30
+#define RAMIPS_SPI_RXFIFO 0x34
+#define RAMIPS_SPI_FIFO_STAT 0x38
+#define RAMIPS_SPI_MODE 0x3C
+#define RAMIPS_SPI_DEV_OFFSET 0x40
+#define RAMIPS_SPI_DMA 0x80
+#define RAMIPS_SPI_DMASTAT 0x84
+#define RAMIPS_SPI_ARBITER 0xF0
+
+/* SPISTAT register bit field */
+#define SPISTAT_BUSY BIT(0)
+
+/* SPICFG register bit field */
+#define SPICFG_ADDRMODE BIT(12)
+#define SPICFG_RXENVDIS BIT(11)
+#define SPICFG_RXCAP BIT(10)
+#define SPICFG_SPIENMODE BIT(9)
+#define SPICFG_MSBFIRST BIT(8)
+#define SPICFG_SPICLKPOL BIT(6)
+#define SPICFG_RXCLKEDGE_FALLING BIT(5)
+#define SPICFG_TXCLKEDGE_FALLING BIT(4)
+#define SPICFG_HIZSPI BIT(3)
+#define SPICFG_SPICLK_PRESCALE_MASK 0x7
+#define SPICFG_SPICLK_DIV2 0
+#define SPICFG_SPICLK_DIV4 1
+#define SPICFG_SPICLK_DIV8 2
+#define SPICFG_SPICLK_DIV16 3
+#define SPICFG_SPICLK_DIV32 4
+#define SPICFG_SPICLK_DIV64 5
+#define SPICFG_SPICLK_DIV128 6
+#define SPICFG_SPICLK_DISABLE 7
+
+/* SPICTL register bit field */
+#define SPICTL_START BIT(4)
+#define SPICTL_HIZSDO BIT(3)
+#define SPICTL_STARTWR BIT(2)
+#define SPICTL_STARTRD BIT(1)
+#define SPICTL_SPIENA BIT(0)
+
+/* SPIUSER register bit field */
+#define SPIUSER_USERMODE BIT(21)
+#define SPIUSER_INSTR_PHASE BIT(20)
+#define SPIUSER_ADDR_PHASE_MASK 0x7
+#define SPIUSER_ADDR_PHASE_OFFSET 17
+#define SPIUSER_MODE_PHASE BIT(16)
+#define SPIUSER_DUMMY_PHASE_MASK 0x3
+#define SPIUSER_DUMMY_PHASE_OFFSET 14
+#define SPIUSER_DATA_PHASE_MASK 0x3
+#define SPIUSER_DATA_PHASE_OFFSET 12
+#define SPIUSER_DATA_READ (BIT(0) << SPIUSER_DATA_PHASE_OFFSET)
+#define SPIUSER_DATA_WRITE (BIT(1) << SPIUSER_DATA_PHASE_OFFSET)
+#define SPIUSER_ADDR_TYPE_OFFSET 9
+#define SPIUSER_MODE_TYPE_OFFSET 6
+#define SPIUSER_DUMMY_TYPE_OFFSET 3
+#define SPIUSER_DATA_TYPE_OFFSET 0
+#define SPIUSER_TRANSFER_MASK 0x7
+#define SPIUSER_TRANSFER_SINGLE BIT(0)
+#define SPIUSER_TRANSFER_DUAL BIT(1)
+#define SPIUSER_TRANSFER_QUAD BIT(2)
+
+#define SPIUSER_TRANSFER_TYPE(type) ( \
+ (type << SPIUSER_ADDR_TYPE_OFFSET) | \
+ (type << SPIUSER_MODE_TYPE_OFFSET) | \
+ (type << SPIUSER_DUMMY_TYPE_OFFSET) | \
+ (type << SPIUSER_DATA_TYPE_OFFSET) \
+)
+
+/* SPIFIFOSTAT register bit field */
+#define SPIFIFOSTAT_TXEMPTY BIT(19)
+#define SPIFIFOSTAT_RXEMPTY BIT(18)
+#define SPIFIFOSTAT_TXFULL BIT(17)
+#define SPIFIFOSTAT_RXFULL BIT(16)
+#define SPIFIFOSTAT_FIFO_MASK 0xff
+#define SPIFIFOSTAT_TX_OFFSET 8
+#define SPIFIFOSTAT_RX_OFFSET 0
+
+#define SPI_FIFO_DEPTH 16
+
+/* SPIMODE register bit field */
+#define SPIMODE_MODE_OFFSET 24
+#define SPIMODE_DUMMY_OFFSET 0
+
+/* SPIARB register bit field */
+#define SPICTL_ARB_EN BIT(31)
+#define SPICTL_CSCTL1 BIT(16)
+#define SPI1_POR BIT(1)
+#define SPI0_POR BIT(0)
+
+#define RT2880_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | \
+ SPI_CS_HIGH)
+
+struct rt2880_spi {
+ struct spi_master *master;
+ void __iomem *base;
+ u32 speed;
+ u16 wait_loops;
+ u16 mode;
+ struct clk *clk;
+};
+
+static inline struct rt2880_spi *spidev_to_rt2880_spi(struct spi_device *spi)
+{
+ return spi_master_get_devdata(spi->master);
+}
+
+static inline u32 rt2880_spi_read(struct rt2880_spi *rs, u32 reg)
+{
+ return ioread32(rs->base + reg);
+}
+
+static inline void rt2880_spi_write(struct rt2880_spi *rs, u32 reg,
+ const u32 val)
+{
+ iowrite32(val, rs->base + reg);
+}
+
+static inline void rt2880_spi_setbits(struct rt2880_spi *rs, u32 reg, u32 mask)
+{
+ void __iomem *addr = rs->base + reg;
+
+ iowrite32((ioread32(addr) | mask), addr);
+}
+
+static inline void rt2880_spi_clrbits(struct rt2880_spi *rs, u32 reg, u32 mask)
+{
+ void __iomem *addr = rs->base + reg;
+
+ iowrite32((ioread32(addr) & ~mask), addr);
+}
+
+static u32 rt2880_spi_baudrate_get(struct spi_device *spi, unsigned int speed)
+{
+ struct rt2880_spi *rs = spidev_to_rt2880_spi(spi);
+ u32 rate;
+ u32 prescale;
+
+ /*
+ * the supported rates are: 2, 4, 8, ... 128
+ * round up as we look for equal or less speed
+ */
+ rate = DIV_ROUND_UP(clk_get_rate(rs->clk), speed);
+ rate = roundup_pow_of_two(rate);
+
+ /* Convert the rate to SPI clock divisor value. */
+ prescale = ilog2(rate / 2);
+
+ /* some tolerance. double and add 100 */
+ rs->wait_loops = (8 * HZ * loops_per_jiffy) /
+ (clk_get_rate(rs->clk) / rate);
+ rs->wait_loops = (rs->wait_loops << 1) + 100;
+ rs->speed = speed;
+
+ dev_dbg(&spi->dev, "speed: %lu/%u, rate: %u, prescal: %u, loops: %hu\n",
+ clk_get_rate(rs->clk) / rate, speed, rate, prescale,
+ rs->wait_loops);
+
+ return prescale;
+}
+
+static u32 get_arbiter_offset(struct spi_master *master)
+{
+ u32 offset;
+
+ offset = RAMIPS_SPI_ARBITER;
+ if (master->bus_num == 1)
+ offset -= RAMIPS_SPI_DEV_OFFSET;
+
+ return offset;
+}
+
+static void rt2880_spi_set_cs(struct spi_device *spi, bool enable)
+{
+ struct rt2880_spi *rs = spidev_to_rt2880_spi(spi);
+
+ if (enable)
+ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_SPIENA);
+ else
+ rt2880_spi_clrbits(rs, RAMIPS_SPI_CTL, SPICTL_SPIENA);
+}
+
+static int rt2880_spi_wait_ready(struct rt2880_spi *rs, int len)
+{
+ int loop = rs->wait_loops * len;
+
+ while ((rt2880_spi_read(rs, RAMIPS_SPI_STAT) & SPISTAT_BUSY) && --loop)
+ cpu_relax();
+
+ if (loop)
+ return 0;
+
+ return -ETIMEDOUT;
+}
+
+static void rt2880_dump_reg(struct spi_master *master)
+{
+ struct rt2880_spi *rs = spi_master_get_devdata(master);
+
+ dev_dbg(&master->dev, "stat: %08x, cfg: %08x, ctl: %08x, " \
+ "data: %08x, arb: %08x\n",
+ rt2880_spi_read(rs, RAMIPS_SPI_STAT),
+ rt2880_spi_read(rs, RAMIPS_SPI_CFG),
+ rt2880_spi_read(rs, RAMIPS_SPI_CTL),
+ rt2880_spi_read(rs, RAMIPS_SPI_DATA),
+ rt2880_spi_read(rs, get_arbiter_offset(master)));
+}
+
+static int rt2880_spi_transfer_one(struct spi_master *master,
+ struct spi_device *spi, struct spi_transfer *xfer)
+{
+ struct rt2880_spi *rs = spi_master_get_devdata(master);
+ unsigned len;
+ const u8 *tx = xfer->tx_buf;
+ u8 *rx = xfer->rx_buf;
+ int err = 0;
+
+ /* change clock speed */
+ if (unlikely(rs->speed != xfer->speed_hz)) {
+ u32 reg;
+ reg = rt2880_spi_read(rs, RAMIPS_SPI_CFG);
+ reg &= ~SPICFG_SPICLK_PRESCALE_MASK;
+ reg |= rt2880_spi_baudrate_get(spi, xfer->speed_hz);
+ rt2880_spi_write(rs, RAMIPS_SPI_CFG, reg);
+ }
+
+ if (tx) {
+ len = xfer->len;
+ while (len-- > 0) {
+ rt2880_spi_write(rs, RAMIPS_SPI_DATA, *tx++);
+ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_STARTWR);
+ err = rt2880_spi_wait_ready(rs, 1);
+ if (err) {
+ dev_err(&spi->dev, "TX failed, err=%d\n", err);
+ goto out;
+ }
+ }
+ }
+
+ if (rx) {
+ len = xfer->len;
+ while (len-- > 0) {
+ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_STARTRD);
+ err = rt2880_spi_wait_ready(rs, 1);
+ if (err) {
+ dev_err(&spi->dev, "RX failed, err=%d\n", err);
+ goto out;
+ }
+ *rx++ = (u8) rt2880_spi_read(rs, RAMIPS_SPI_DATA);
+ }
+ }
+
+out:
+ return err;
+}
+
+static int rt2880_spi_setup(struct spi_device *spi)
+{
+ struct spi_master *master = spi->master;
+ struct rt2880_spi *rs = spi_master_get_devdata(master);
+ u32 reg, old_reg, arbit_off;
+
+ if ((spi->max_speed_hz > master->max_speed_hz) ||
+ (spi->max_speed_hz < master->min_speed_hz)) {
+ dev_err(&spi->dev, "invalide requested speed %d Hz\n",
+ spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ if (!(master->bits_per_word_mask &
+ BIT(spi->bits_per_word - 1))) {
+ dev_err(&spi->dev, "invalide bits_per_word %d\n",
+ spi->bits_per_word);
+ return -EINVAL;
+ }
+
+ /* the hardware seems can't work on mode0 force it to mode3 */
+ if ((spi->mode & (SPI_CPOL | SPI_CPHA)) == SPI_MODE_0) {
+ dev_warn(&spi->dev, "force spi mode3\n");
+ spi->mode |= SPI_MODE_3;
+ }
+
+ /* chip polarity */
+ arbit_off = get_arbiter_offset(master);
+ reg = old_reg = rt2880_spi_read(rs, arbit_off);
+ if (spi->mode & SPI_CS_HIGH) {
+ switch (master->bus_num) {
+ case 1:
+ reg |= SPI1_POR;
+ break;
+ default:
+ reg |= SPI0_POR;
+ break;
+ }
+ } else {
+ switch (master->bus_num) {
+ case 1:
+ reg &= ~SPI1_POR;
+ break;
+ default:
+ reg &= ~SPI0_POR;
+ break;
+ }
+ }
+
+ /* enable spi1 */
+ if (master->bus_num == 1)
+ reg |= SPICTL_ARB_EN;
+
+ if (reg != old_reg)
+ rt2880_spi_write(rs, arbit_off, reg);
+
+ rt2880_dump_reg(master);
+
+ return 0;
+}
+
+static int rt2880_spi_prepare_message(struct spi_master *master,
+ struct spi_message *msg)
+{
+ struct rt2880_spi *rs = spi_master_get_devdata(master);
+ struct spi_device *spi = msg->spi;
+ u32 reg;
+
+ if ((rs->mode == spi->mode) && (rs->speed == spi->max_speed_hz))
+ return 0;
+
+#if 0
+ /* set spido to tri-state */
+ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_HIZSDO);
+#endif
+
+ reg = rt2880_spi_read(rs, RAMIPS_SPI_CFG);
+
+ reg &= ~(SPICFG_MSBFIRST | SPICFG_SPICLKPOL |
+ SPICFG_RXCLKEDGE_FALLING |
+ SPICFG_TXCLKEDGE_FALLING |
+ SPICFG_SPICLK_PRESCALE_MASK);
+
+ /* MSB */
+ if (!(spi->mode & SPI_LSB_FIRST))
+ reg |= SPICFG_MSBFIRST;
+
+ /* spi mode */
+ switch (spi->mode & (SPI_CPOL | SPI_CPHA)) {
+ case SPI_MODE_0:
+ reg |= SPICFG_TXCLKEDGE_FALLING;
+ break;
+ case SPI_MODE_1:
+ reg |= SPICFG_RXCLKEDGE_FALLING;
+ break;
+ case SPI_MODE_2:
+ reg |= SPICFG_SPICLKPOL | SPICFG_RXCLKEDGE_FALLING;
+ break;
+ case SPI_MODE_3:
+ reg |= SPICFG_SPICLKPOL | SPICFG_TXCLKEDGE_FALLING;
+ break;
+ }
+ rs->mode = spi->mode;
+
+#if 0
+ /* set spiclk and spiena to tri-state */
+ reg |= SPICFG_HIZSPI;
+#endif
+
+ /* clock divide */
+ reg |= rt2880_spi_baudrate_get(spi, spi->max_speed_hz);
+
+ rt2880_spi_write(rs, RAMIPS_SPI_CFG, reg);
+
+ return 0;
+}
+
+static int rt2880_spi_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct spi_master *master;
+ struct rt2880_spi *rs;
+ void __iomem *base;
+ struct clk *clk;
+ int ret;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ clk = devm_clk_get_enabled(dev, NULL);
+ if (IS_ERR(clk))
+ return dev_err_probe(dev, PTR_ERR(clk), "unable to get SYS clock");
+
+ master = devm_spi_alloc_master(dev, sizeof(*rs));
+ if (!master) {
+ dev_err(dev, "master allocation failed\n");
+ return -ENOMEM;
+ }
+
+ master->dev.of_node = pdev->dev.of_node;
+ master->mode_bits = RT2880_SPI_MODE_BITS;
+ master->bits_per_word_mask = SPI_BPW_MASK(8);
+ master->min_speed_hz = clk_get_rate(clk) / 128;
+ master->max_speed_hz = clk_get_rate(clk) / 2;
+ master->flags = SPI_MASTER_HALF_DUPLEX;
+ master->setup = rt2880_spi_setup;
+ master->prepare_message = rt2880_spi_prepare_message;
+ master->set_cs = rt2880_spi_set_cs;
+ master->transfer_one = rt2880_spi_transfer_one,
+
+ rs = spi_master_get_devdata(master);
+ rs->master = master;
+ rs->base = base;
+ rs->clk = clk;
+
+ ret = device_reset(&pdev->dev);
+ if (ret)
+ return ret;
+
+ return devm_spi_register_master(dev, master);
+}
+
+MODULE_ALIAS("platform:" DRIVER_NAME);
+
+static const struct of_device_id rt2880_spi_match[] = {
+ { .compatible = "ralink,rt2880-spi" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rt2880_spi_match);
+
+static struct platform_driver rt2880_spi_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .of_match_table = rt2880_spi_match,
+ },
+ .probe = rt2880_spi_probe,
+};
+
+module_platform_driver(rt2880_spi_driver);
+
+MODULE_DESCRIPTION("Ralink SPI driver");
+MODULE_AUTHOR("Sergiy <piratfm@gmail.com>");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_LICENSE("GPL");

469
target/linux/ramips/patches-6.6/825-i2c-MIPS-adds-ralink-I2C-driver.patch Normal file
View File

@@ -0,0 +1,469 @@
From 723b8beaabf3c3c4b1ce69480141f1e926f3f3b2 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jul 2014 09:52:56 +0100
Subject: [PATCH 44/53] i2c: MIPS: adds ralink I2C driver
Signed-off-by: John Crispin <blogic@openwrt.org>
---
.../devicetree/bindings/i2c/i2c-ralink.txt | 27 ++
drivers/i2c/busses/Kconfig | 4 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-ralink.c | 327 ++++++++++++++++++++
4 files changed, 359 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-ralink.txt
create mode 100644 drivers/i2c/busses/i2c-ralink.c
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-ralink.txt
@@ -0,0 +1,27 @@
+I2C for Ralink platforms
+
+Required properties :
+- compatible : Must be "link,rt3052-i2c"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Optional properties:
+- Child nodes conforming to i2c bus binding
+
+Example :
+
+palmbus@10000000 {
+ i2c@900 {
+ compatible = "link,rt3052-i2c";
+ reg = <0x900 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hwmon@4b {
+ compatible = "national,lm92";
+ reg = <0x4b>;
+ };
+ };
+};
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -1021,6 +1021,11 @@ config I2C_RK3X
This driver can also be built as a module. If so, the module will
be called i2c-rk3x.
+config I2C_RALINK
+ tristate "Ralink I2C Controller"
+ depends on RALINK && !SOC_MT7621
+ select OF_I2C
+
config I2C_RZV2M
tristate "Renesas RZ/V2M adapter"
depends on ARCH_RENESAS || COMPILE_TEST
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -96,6 +96,7 @@ obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pc
obj-$(CONFIG_I2C_PNX) += i2c-pnx.o
obj-$(CONFIG_I2C_PXA) += i2c-pxa.o
obj-$(CONFIG_I2C_PXA_PCI) += i2c-pxa-pci.o
+obj-$(CONFIG_I2C_RALINK) += i2c-ralink.o
obj-$(CONFIG_I2C_QCOM_CCI) += i2c-qcom-cci.o
obj-$(CONFIG_I2C_QCOM_GENI) += i2c-qcom-geni.o
obj-$(CONFIG_I2C_QUP) += i2c-qup.o
--- /dev/null
+++ b/drivers/i2c/busses/i2c-ralink.c
@@ -0,0 +1,397 @@
+/*
+ * drivers/i2c/busses/i2c-ralink.c
+ *
+ * Copyright (C) 2013 Steven Liu <steven_liu@mediatek.com>
+ * Copyright (C) 2016 Michael Lee <igvtee@gmail.com>
+ *
+ * Improve driver for i2cdetect from i2c-tools to detect i2c devices on the bus.
+ * (C) 2014 Sittisak <sittisaks@hotmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/reset.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
+#define REG_CONFIG_REG 0x00
+#define REG_CLKDIV_REG 0x04
+#define REG_DEVADDR_REG 0x08
+#define REG_ADDR_REG 0x0C
+#define REG_DATAOUT_REG 0x10
+#define REG_DATAIN_REG 0x14
+#define REG_STATUS_REG 0x18
+#define REG_STARTXFR_REG 0x1C
+#define REG_BYTECNT_REG 0x20
+
+/* REG_CONFIG_REG */
+#define I2C_ADDRLEN_OFFSET 5
+#define I2C_DEVADLEN_OFFSET 2
+#define I2C_ADDRLEN_MASK 0x3
+#define I2C_ADDR_DIS BIT(1)
+#define I2C_DEVADDR_DIS BIT(0)
+#define I2C_ADDRLEN_8 (7 << I2C_ADDRLEN_OFFSET)
+#define I2C_DEVADLEN_7 (6 << I2C_DEVADLEN_OFFSET)
+#define I2C_CONF_DEFAULT (I2C_ADDRLEN_8 | I2C_DEVADLEN_7)
+
+/* REG_CLKDIV_REG */
+#define I2C_CLKDIV_MASK 0xffff
+
+/* REG_DEVADDR_REG */
+#define I2C_DEVADDR_MASK 0x7f
+
+/* REG_ADDR_REG */
+#define I2C_ADDR_MASK 0xff
+
+/* REG_STATUS_REG */
+#define I2C_STARTERR BIT(4)
+#define I2C_ACKERR BIT(3)
+#define I2C_DATARDY BIT(2)
+#define I2C_SDOEMPTY BIT(1)
+#define I2C_BUSY BIT(0)
+
+/* REG_STARTXFR_REG */
+#define NOSTOP_CMD BIT(2)
+#define NODATA_CMD BIT(1)
+#define READ_CMD BIT(0)
+
+/* REG_BYTECNT_REG */
+#define BYTECNT_MAX 64
+#define SET_BYTECNT(x) (x - 1)
+
+/* timeout waiting for I2C devices to respond (clock streching) */
+#define TIMEOUT_MS 1000
+#define DELAY_INTERVAL_US 100
+
+struct rt_i2c {
+ void __iomem *base;
+ struct clk *clk;
+ struct device *dev;
+ struct i2c_adapter adap;
+ u32 cur_clk;
+ u32 clk_div;
+ u32 flags;
+};
+
+static void rt_i2c_w32(struct rt_i2c *i2c, u32 val, unsigned reg)
+{
+ iowrite32(val, i2c->base + reg);
+}
+
+static u32 rt_i2c_r32(struct rt_i2c *i2c, unsigned reg)
+{
+ return ioread32(i2c->base + reg);
+}
+
+static int poll_down_timeout(void __iomem *addr, u32 mask)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(TIMEOUT_MS);
+
+ do {
+ if (!(readl_relaxed(addr) & mask))
+ return 0;
+
+ usleep_range(DELAY_INTERVAL_US, DELAY_INTERVAL_US + 50);
+ } while (time_before(jiffies, timeout));
+
+ return (readl_relaxed(addr) & mask) ? -EAGAIN : 0;
+}
+
+static int rt_i2c_wait_idle(struct rt_i2c *i2c)
+{
+ int ret;
+
+ ret = poll_down_timeout(i2c->base + REG_STATUS_REG, I2C_BUSY);
+ if (ret < 0)
+ dev_dbg(i2c->dev, "idle err(%d)\n", ret);
+
+ return ret;
+}
+
+static int poll_up_timeout(void __iomem *addr, u32 mask)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(TIMEOUT_MS);
+ u32 status;
+
+ do {
+ status = readl_relaxed(addr);
+
+ /* check error status */
+ if (status & I2C_STARTERR)
+ return -EAGAIN;
+ else if (status & I2C_ACKERR)
+ return -ENXIO;
+ else if (status & mask)
+ return 0;
+
+ usleep_range(DELAY_INTERVAL_US, DELAY_INTERVAL_US + 50);
+ } while (time_before(jiffies, timeout));
+
+ return -ETIMEDOUT;
+}
+
+static int rt_i2c_wait_rx_done(struct rt_i2c *i2c)
+{
+ int ret;
+
+ ret = poll_up_timeout(i2c->base + REG_STATUS_REG, I2C_DATARDY);
+ if (ret < 0)
+ dev_dbg(i2c->dev, "rx err(%d)\n", ret);
+
+ return ret;
+}
+
+static int rt_i2c_wait_tx_done(struct rt_i2c *i2c)
+{
+ int ret;
+
+ ret = poll_up_timeout(i2c->base + REG_STATUS_REG, I2C_SDOEMPTY);
+ if (ret < 0)
+ dev_dbg(i2c->dev, "tx err(%d)\n", ret);
+
+ return ret;
+}
+
+static void rt_i2c_reset(struct rt_i2c *i2c)
+{
+ int ret;
+
+ ret = device_reset(i2c->adap.dev.parent);
+ if (ret)
+ dev_err(i2c->dev, "Failed to reset device");
+
+ barrier();
+ rt_i2c_w32(i2c, i2c->clk_div, REG_CLKDIV_REG);
+}
+
+static void rt_i2c_dump_reg(struct rt_i2c *i2c)
+{
+ dev_dbg(i2c->dev, "conf %08x, clkdiv %08x, devaddr %08x, " \
+ "addr %08x, dataout %08x, datain %08x, " \
+ "status %08x, startxfr %08x, bytecnt %08x\n",
+ rt_i2c_r32(i2c, REG_CONFIG_REG),
+ rt_i2c_r32(i2c, REG_CLKDIV_REG),
+ rt_i2c_r32(i2c, REG_DEVADDR_REG),
+ rt_i2c_r32(i2c, REG_ADDR_REG),
+ rt_i2c_r32(i2c, REG_DATAOUT_REG),
+ rt_i2c_r32(i2c, REG_DATAIN_REG),
+ rt_i2c_r32(i2c, REG_STATUS_REG),
+ rt_i2c_r32(i2c, REG_STARTXFR_REG),
+ rt_i2c_r32(i2c, REG_BYTECNT_REG));
+}
+
+static int rt_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
+ int num)
+{
+ struct rt_i2c *i2c;
+ struct i2c_msg *pmsg;
+ unsigned char addr;
+ int i, j, ret;
+ u32 cmd;
+
+ i2c = i2c_get_adapdata(adap);
+
+ for (i = 0; i < num; i++) {
+ pmsg = &msgs[i];
+ if (i == (num - 1))
+ cmd = 0;
+ else
+ cmd = NOSTOP_CMD;
+
+ dev_dbg(i2c->dev, "addr: 0x%x, len: %d, flags: 0x%x, stop: %d\n",
+ pmsg->addr, pmsg->len, pmsg->flags,
+ (cmd == 0)? 1 : 0);
+
+ /* wait hardware idle */
+ if ((ret = rt_i2c_wait_idle(i2c)))
+ goto err_timeout;
+
+ if (pmsg->flags & I2C_M_TEN) {
+ rt_i2c_w32(i2c, I2C_CONF_DEFAULT, REG_CONFIG_REG);
+ /* 10 bits address */
+ addr = 0x78 | ((pmsg->addr >> 8) & 0x03);
+ rt_i2c_w32(i2c, addr & I2C_DEVADDR_MASK,
+ REG_DEVADDR_REG);
+ rt_i2c_w32(i2c, pmsg->addr & I2C_ADDR_MASK,
+ REG_ADDR_REG);
+ } else {
+ rt_i2c_w32(i2c, I2C_CONF_DEFAULT | I2C_ADDR_DIS,
+ REG_CONFIG_REG);
+ /* 7 bits address */
+ rt_i2c_w32(i2c, pmsg->addr & I2C_DEVADDR_MASK,
+ REG_DEVADDR_REG);
+ }
+
+ /* buffer length */
+ if (pmsg->len == 0)
+ cmd |= NODATA_CMD;
+ else
+ rt_i2c_w32(i2c, SET_BYTECNT(pmsg->len),
+ REG_BYTECNT_REG);
+
+ j = 0;
+ if (pmsg->flags & I2C_M_RD) {
+ cmd |= READ_CMD;
+ /* start transfer */
+ barrier();
+ rt_i2c_w32(i2c, cmd, REG_STARTXFR_REG);
+ do {
+ /* wait */
+ if ((ret = rt_i2c_wait_rx_done(i2c)))
+ goto err_timeout;
+ /* read data */
+ if (pmsg->len)
+ pmsg->buf[j] = rt_i2c_r32(i2c,
+ REG_DATAIN_REG);
+ j++;
+ } while (j < pmsg->len);
+ } else {
+ do {
+ /* write data */
+ if (pmsg->len)
+ rt_i2c_w32(i2c, pmsg->buf[j],
+ REG_DATAOUT_REG);
+ /* start transfer */
+ if (j == 0) {
+ barrier();
+ rt_i2c_w32(i2c, cmd, REG_STARTXFR_REG);
+ }
+ /* wait */
+ if ((ret = rt_i2c_wait_tx_done(i2c)))
+ goto err_timeout;
+ j++;
+ } while (j < pmsg->len);
+ }
+ }
+ /* the return value is number of executed messages */
+ ret = i;
+
+ return ret;
+
+err_timeout:
+ rt_i2c_dump_reg(i2c);
+ rt_i2c_reset(i2c);
+ return ret;
+}
+
+static u32 rt_i2c_func(struct i2c_adapter *a)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm rt_i2c_algo = {
+ .master_xfer = rt_i2c_master_xfer,
+ .functionality = rt_i2c_func,
+};
+
+static const struct of_device_id i2c_rt_dt_ids[] = {
+ { .compatible = "ralink,rt2880-i2c" },
+ { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, i2c_rt_dt_ids);
+
+static struct i2c_adapter_quirks rt_i2c_quirks = {
+ .max_write_len = BYTECNT_MAX,
+ .max_read_len = BYTECNT_MAX,
+};
+
+static int rt_i2c_init(struct rt_i2c *i2c)
+{
+ u32 reg;
+
+ /* i2c_sclk = periph_clk / ((2 * clk_div) + 5) */
+ i2c->clk_div = (clk_get_rate(i2c->clk) - (5 * i2c->cur_clk)) /
+ (2 * i2c->cur_clk);
+ if (i2c->clk_div < 8)
+ i2c->clk_div = 8;
+ if (i2c->clk_div > I2C_CLKDIV_MASK)
+ i2c->clk_div = I2C_CLKDIV_MASK;
+
+ /* check support combinde/repeated start message */
+ rt_i2c_w32(i2c, NOSTOP_CMD, REG_STARTXFR_REG);
+ reg = rt_i2c_r32(i2c, REG_STARTXFR_REG) & NOSTOP_CMD;
+
+ rt_i2c_reset(i2c);
+
+ return reg;
+}
+
+static int rt_i2c_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct rt_i2c *i2c;
+ struct i2c_adapter *adap;
+ int restart;
+
+ i2c = devm_kzalloc(dev, sizeof(struct rt_i2c), GFP_KERNEL);
+ if (!i2c) {
+ dev_err(dev, "failed to allocate i2c_adapter\n");
+ return -ENOMEM;
+ }
+
+ i2c->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(i2c->base))
+ return PTR_ERR(i2c->base);
+
+ i2c->clk = devm_clk_get_enabled(dev, NULL);
+ if (IS_ERR(i2c->clk))
+ return dev_err_probe(dev, PTR_ERR(i2c->clk), "no clock defined");
+
+ i2c->dev = dev;
+
+ if (of_property_read_u32(pdev->dev.of_node,
+ "clock-frequency", &i2c->cur_clk))
+ i2c->cur_clk = 100000;
+
+ adap = &i2c->adap;
+ adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
+ adap->algo = &rt_i2c_algo;
+ adap->retries = 3;
+ adap->dev.parent = dev;
+ i2c_set_adapdata(adap, i2c);
+ adap->dev.of_node = pdev->dev.of_node;
+ strlcpy(adap->name, dev_name(dev), sizeof(adap->name));
+ adap->quirks = &rt_i2c_quirks;
+
+ restart = rt_i2c_init(i2c);
+
+ dev_info(dev, "clock %uKHz, re-start %ssupport\n",
+ i2c->cur_clk/1000, restart ? "" : "not ");
+
+ return devm_i2c_add_adapter(dev, adap);
+}
+
+static struct platform_driver rt_i2c_driver = {
+ .probe = rt_i2c_probe,
+ .driver = {
+ .name = "i2c-ralink",
+ .of_match_table = i2c_rt_dt_ids,
+ },
+};
+
+module_platform_driver(rt_i2c_driver);
+
+MODULE_AUTHOR("Steven Liu <steven_liu@mediatek.com>");
+MODULE_DESCRIPTION("Ralink I2c host driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:Ralink-I2C");

46
target/linux/ramips/patches-6.6/830-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch Normal file
View File

@@ -0,0 +1,46 @@
From 23147af14531cbdada194b94120ef8774f46292d Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 13 Nov 2014 19:08:40 +0100
Subject: [PATCH 46/53] mmc: MIPS: ralink: add sdhci for mt7620a SoC
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/mmc/host/Kconfig | 2 +
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/mtk-mmc/Kconfig | 16 +
drivers/mmc/host/mtk-mmc/Makefile | 42 +
drivers/mmc/host/mtk-mmc/board.h | 137 ++
drivers/mmc/host/mtk-mmc/dbg.c | 347 ++++
drivers/mmc/host/mtk-mmc/dbg.h | 156 ++
drivers/mmc/host/mtk-mmc/mt6575_sd.h | 1001 +++++++++++
drivers/mmc/host/mtk-mmc/sd.c | 3060 ++++++++++++++++++++++++++++++++++
9 files changed, 4762 insertions(+)
create mode 100644 drivers/mmc/host/mtk-mmc/Kconfig
create mode 100644 drivers/mmc/host/mtk-mmc/Makefile
create mode 100644 drivers/mmc/host/mtk-mmc/board.h
create mode 100644 drivers/mmc/host/mtk-mmc/dbg.c
create mode 100644 drivers/mmc/host/mtk-mmc/dbg.h
create mode 100644 drivers/mmc/host/mtk-mmc/mt6575_sd.h
create mode 100644 drivers/mmc/host/mtk-mmc/sd.c
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -1059,6 +1059,8 @@ config MMC_OWL
config MMC_SDHCI_EXTERNAL_DMA
bool
+source "drivers/mmc/host/mtk-mmc/Kconfig"
+
config MMC_LITEX
tristate "LiteX MMC Host Controller support"
depends on ((PPC_MICROWATT || LITEX) && OF && HAVE_CLK) || COMPILE_TEST
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -3,6 +3,7 @@
# Makefile for MMC/SD host controller drivers
#
+obj-$(CONFIG_MTK_MMC) += mtk-mmc/
obj-$(CONFIG_MMC_ARMMMCI) += armmmci.o
armmmci-y := mmci.o
armmmci-$(CONFIG_MMC_QCOM_DML) += mmci_qcom_dml.o

39
target/linux/ramips/patches-6.6/831-mmc-mtk-sd-initialize-pad-delay-and-drive-strength.patch Normal file
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@@ -0,0 +1,39 @@
From: Shiji Yang <yangshiji66@outlook.com>
Date: Wed, 10 Jul 2024 12:18:52 +0800
Subject: [PATCH] mmc: mtk-sd: initialize the pad and tune registers
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
---
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -75,8 +75,12 @@
#define MSDC_PATCH_BIT 0xb0
#define MSDC_PATCH_BIT1 0xb4
#define MSDC_PATCH_BIT2 0xb8
+#define MSDC_PAD_CTRL0 0xe0
+#define MSDC_PAD_CTRL1 0xe4
+#define MSDC_PAD_CTRL2 0xe8
#define MSDC_PAD_TUNE 0xec
#define MSDC_PAD_TUNE0 0xf0
+#define MSDC_PAD_TUNE1 0xf4
#define PAD_DS_TUNE 0x188
#define PAD_CMD_TUNE 0x18c
#define EMMC51_CFG0 0x204
@@ -1795,6 +1799,16 @@ static void msdc_init_hw(struct msdc_hos
MSDC_PAD_TUNE_RXDLYSEL);
}
+ /* Set pins drive strength */
+ writel(0x000d0044, host->base + MSDC_PAD_CTRL0);
+ writel(0x000e0044, host->base + MSDC_PAD_CTRL1);
+ writel(0x000e0044, host->base + MSDC_PAD_CTRL2);
+
+ /* Set pad delay */
+ writel(0x84101010, host->base + MSDC_PAD_TUNE);
+ writel(0x10101010, host->base + MSDC_PAD_TUNE0);
+ writel(0x10101010, host->base + MSDC_PAD_TUNE1);
+
if (mmc->caps2 & MMC_CAP2_NO_SDIO) {
sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIO);
sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INTEN_SDIOIRQ);

1003
target/linux/ramips/patches-6.6/835-asoc-add-mt7620-support.patch Normal file
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22
target/linux/ramips/patches-6.6/840-serial-add-ugly-custom-baud-rate-hack.patch Normal file
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@@ -0,0 +1,22 @@
From a7eb46e0ea4a11e4dfb56ab129bf816d1059a6c5 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 7 Dec 2015 17:31:08 +0100
Subject: [PATCH 51/53] serial: add ugly custom baud rate hack
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/tty/serial/serial_core.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -482,6 +482,9 @@ uart_get_baud_rate(struct uart_port *por
break;
}
+ if (tty_termios_baud_rate(termios) == 2500000)
+ return 250000;
+
for (try = 0; try < 2; try++) {
baud = tty_termios_baud_rate(termios);

231
target/linux/ramips/patches-6.6/845-pwm-add-mediatek-support.patch Normal file
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@@ -0,0 +1,231 @@
From fc8f96309c21c1bc3276427309cd7d361347d66e Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 7 Dec 2015 17:16:50 +0100
Subject: [PATCH 52/53] pwm: add mediatek support
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/pwm/Kconfig | 9 +++
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-mediatek.c | 173 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 183 insertions(+)
create mode 100644 drivers/pwm/pwm-mediatek.c
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -415,6 +415,15 @@ config PWM_MICROCHIP_CORE
To compile this driver as a module, choose M here: the module
will be called pwm-microchip-core.
+config PWM_MEDIATEK_RAMIPS
+ tristate "Mediatek PWM support"
+ depends on RALINK && OF
+ help
+ Generic PWM framework driver for Mediatek ARM SoC.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-mxs.
+
config PWM_MXS
tristate "Freescale MXS PWM support"
depends on ARCH_MXS || COMPILE_TEST
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_PWM_LPSS_PCI) += pwm-lpss-p
obj-$(CONFIG_PWM_LPSS_PLATFORM) += pwm-lpss-platform.o
obj-$(CONFIG_PWM_MESON) += pwm-meson.o
obj-$(CONFIG_PWM_MEDIATEK) += pwm-mediatek.o
+obj-$(CONFIG_PWM_MEDIATEK_RAMIPS) += pwm-mediatek-ramips.o
obj-$(CONFIG_PWM_MICROCHIP_CORE) += pwm-microchip-core.o
obj-$(CONFIG_PWM_MTK_DISP) += pwm-mtk-disp.o
obj-$(CONFIG_PWM_MXS) += pwm-mxs.o
--- /dev/null
+++ b/drivers/pwm/pwm-mediatek-ramips.c
@@ -0,0 +1,187 @@
+/*
+ * Mediatek Pulse Width Modulator driver
+ *
+ * Copyright (C) 2015 John Crispin <blogic@openwrt.org>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#define NUM_PWM 4
+
+/* PWM registers and bits definitions */
+#define PWMCON 0x00
+#define PWMHDUR 0x04
+#define PWMLDUR 0x08
+#define PWMGDUR 0x0c
+#define PWMWAVENUM 0x28
+#define PWMDWIDTH 0x2c
+#define PWMTHRES 0x30
+
+/**
+ * struct mtk_pwm_chip - struct representing pwm chip
+ *
+ * @mmio_base: base address of pwm chip
+ * @chip: linux pwm chip representation
+ */
+struct mtk_pwm_chip {
+ void __iomem *mmio_base;
+ struct pwm_chip chip;
+};
+
+static inline struct mtk_pwm_chip *to_mtk_pwm_chip(struct pwm_chip *chip)
+{
+ return container_of(chip, struct mtk_pwm_chip, chip);
+}
+
+static inline u32 mtk_pwm_readl(struct mtk_pwm_chip *chip, unsigned int num,
+ unsigned long offset)
+{
+ return ioread32(chip->mmio_base + 0x10 + (num * 0x40) + offset);
+}
+
+static inline void mtk_pwm_writel(struct mtk_pwm_chip *chip,
+ unsigned int num, unsigned long offset,
+ unsigned long val)
+{
+ iowrite32(val, chip->mmio_base + 0x10 + (num * 0x40) + offset);
+}
+
+static int mtk_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+ int duty_ns, int period_ns)
+{
+ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip);
+ u32 resolution = 100 / 4;
+ u32 clkdiv = 0;
+
+ while (period_ns / resolution > 8191) {
+ clkdiv++;
+ resolution *= 2;
+ }
+
+ if (clkdiv > 7)
+ return -1;
+
+ mtk_pwm_writel(pc, pwm->hwpwm, PWMCON, BIT(15) | BIT(3) | clkdiv);
+ mtk_pwm_writel(pc, pwm->hwpwm, PWMDWIDTH, period_ns / resolution);
+ mtk_pwm_writel(pc, pwm->hwpwm, PWMTHRES, duty_ns / resolution);
+ return 0;
+}
+
+static int mtk_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip);
+ u32 val;
+
+ val = ioread32(pc->mmio_base);
+ val |= BIT(pwm->hwpwm);
+ iowrite32(val, pc->mmio_base);
+
+ return 0;
+}
+
+static void mtk_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip);
+ u32 val;
+
+ val = ioread32(pc->mmio_base);
+ val &= ~BIT(pwm->hwpwm);
+ iowrite32(val, pc->mmio_base);
+}
+
+static int mtk_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
+ const struct pwm_state *state)
+{
+ int err;
+ bool enabled = pwm->state.enabled;
+
+ if (!state->enabled) {
+ if (enabled)
+ mtk_pwm_disable(chip, pwm);
+
+ return 0;
+ }
+
+ err = mtk_pwm_config(pwm->chip, pwm,
+ state->duty_cycle, state->period);
+ if (err)
+ return err;
+
+ if (!enabled)
+ err = mtk_pwm_enable(chip, pwm);
+
+ return err;
+}
+
+static const struct pwm_ops mtk_pwm_ops = {
+ .apply = mtk_pwm_apply,
+ .owner = THIS_MODULE,
+};
+
+static int mtk_pwm_probe(struct platform_device *pdev)
+{
+ struct mtk_pwm_chip *pc;
+
+ pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
+ if (!pc)
+ return -ENOMEM;
+
+ pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(pc->mmio_base))
+ return PTR_ERR(pc->mmio_base);
+
+ pc->chip.dev = &pdev->dev;
+ pc->chip.ops = &mtk_pwm_ops;
+ pc->chip.base = -1;
+ pc->chip.npwm = NUM_PWM;
+
+ platform_set_drvdata(pdev, pc);
+
+ return devm_pwmchip_add(&pdev->dev, &pc->chip);
+}
+
+static int mtk_pwm_remove(struct platform_device *pdev)
+{
+ struct mtk_pwm_chip *pc = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < NUM_PWM; i++)
+ pwm_disable(&pc->chip.pwms[i]);
+
+ return 0;
+}
+
+static const struct of_device_id mtk_pwm_of_match[] = {
+ { .compatible = "mediatek,mt7628-pwm" },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, mtk_pwm_of_match);
+
+static struct platform_driver mtk_pwm_driver = {
+ .driver = {
+ .name = "mtk-pwm",
+ .of_match_table = mtk_pwm_of_match,
+ },
+ .probe = mtk_pwm_probe,
+ .remove = mtk_pwm_remove,
+};
+
+module_platform_driver(mtk_pwm_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_ALIAS("platform:mtk-pwm");

15
target/linux/ramips/patches-6.6/850-awake-rt305x-dwc2-controller.patch Normal file
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@@ -0,0 +1,15 @@
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -481,6 +481,12 @@ static int dwc2_driver_probe(struct plat
if (retval)
return retval;
+ /* Enable USB port before any regs access */
+ if (readl(hsotg->regs + PCGCTL) & 0x0f) {
+ writel(0x00, hsotg->regs + PCGCTL);
+ /* TODO: mdelay(25) here? vendor driver don't use it */
+ }
+
hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg);
retval = dwc2_get_dr_mode(hsotg);

3274
target/linux/ramips/patches-6.6/860-ramips-add-eip93-driver.patch Normal file
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