domenico/openwrt_NSS_ACW
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kernel: update bcma to the tag master-2014-09-30 (wireless-next)

Browse Source 
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 42710
This commit is contained in:
Rafał Miłecki
2014-10-01 13:37:36 +00:00
parent 26e85084b5
commit 59b965194d
5 changed files with 505 additions and 309 deletions
Download Patch File Download Diff File Expand all files Collapse all files

266
target/linux/generic/patches-3.10/025-bcma_backport.patch
View File

@@ -77,6 +77,27 @@
/* driver_chipcommon_pmu.c */
u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
@@ -84,6 +88,20 @@ extern int __init bcma_host_pci_init(voi
extern void __exit bcma_host_pci_exit(void);
#endif /* CONFIG_BCMA_HOST_PCI */
+/* host_soc.c */
+#if defined(CONFIG_BCMA_HOST_SOC) && defined(CONFIG_OF)
+extern int __init bcma_host_soc_register_driver(void);
+extern void __exit bcma_host_soc_unregister_driver(void);
+#else
+static inline int __init bcma_host_soc_register_driver(void)
+{
+ return 0;
+}
+static inline void __exit bcma_host_soc_unregister_driver(void)
+{
+}
+#endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
+
/* driver_pci.c */
u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -9,6 +9,25 @@
@@ -512,7 +533,7 @@
chip->label = "bcma_gpio";
chip->owner = THIS_MODULE;
@@ -95,8 +215,18 @@ int bcma_gpio_init(struct bcma_drv_cc *c
@@ -95,8 +215,22 @@ int bcma_gpio_init(struct bcma_drv_cc *c
chip->set = bcma_gpio_set_value;
chip->direction_input = bcma_gpio_direction_input;
chip->direction_output = bcma_gpio_direction_output;
@@ -520,6 +541,10 @@
chip->to_irq = bcma_gpio_to_irq;
- chip->ngpio = 16;
+#endif
+#if IS_BUILTIN(CONFIG_OF)
+ if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
+ chip->of_node = cc->core->dev.of_node;
+#endif
+ switch (cc->core->bus->chipinfo.id) {
+ case BCMA_CHIP_ID_BCM5357:
+ case BCMA_CHIP_ID_BCM53572:
@@ -532,7 +557,7 @@
/* There is just one SoC in one device and its GPIO addresses should be
* deterministic to address them more easily. The other buses could get
* a random base number. */
@@ -105,10 +235,21 @@ int bcma_gpio_init(struct bcma_drv_cc *c
@@ -105,10 +239,21 @@ int bcma_gpio_init(struct bcma_drv_cc *c
else
chip->base = -1;
@@ -929,7 +954,15 @@
MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -69,28 +69,36 @@ static u16 bcma_cc_core_id(struct bcma_b
@@ -10,6 +10,7 @@
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
+#include <linux/of_address.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -69,28 +70,36 @@ static u16 bcma_cc_core_id(struct bcma_b
return BCMA_CORE_CHIPCOMMON;
}
@@ -977,7 +1010,7 @@
}
static void bcma_release_core_dev(struct device *dev)
@@ -103,55 +111,78 @@ static void bcma_release_core_dev(struct
@@ -103,55 +112,121 @@ static void bcma_release_core_dev(struct
kfree(core);
}
@@ -993,6 +1026,43 @@
+ return false;
+}
+
+#ifdef CONFIG_OF
+static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+ u64 size;
+ const __be32 *reg;
+
+ if (!parent || !parent->dev.of_node)
+ return NULL;
+
+ for_each_child_of_node(parent->dev.of_node, node) {
+ reg = of_get_address(node, 0, &size, NULL);
+ if (!reg)
+ continue;
+ if (of_translate_address(node, reg) == core->addr)
+ return node;
+ }
+ return NULL;
+}
+
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+
+ node = bcma_of_find_child_device(parent, core);
+ if (node)
+ core->dev.of_node = node;
+}
+#else
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+}
+#endif /* CONFIG_OF */
+
+static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+{
+ int err;
@@ -1009,7 +1079,13 @@
+ break;
+ case BCMA_HOSTTYPE_SOC:
+ core->dev.dma_mask = &core->dev.coherent_dma_mask;
+ core->dma_dev = &core->dev;
+ if (bus->host_pdev) {
+ core->dma_dev = &bus->host_pdev->dev;
+ core->dev.parent = &bus->host_pdev->dev;
+ bcma_of_fill_device(bus->host_pdev, core);
+ } else {
+ core->dma_dev = &core->dev;
+ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ break;
@@ -1085,7 +1161,7 @@
}
#ifdef CONFIG_BCMA_DRIVER_MIPS
@@ -218,7 +249,7 @@ int bcma_bus_register(struct bcma_bus *b
@@ -218,7 +293,7 @@ int bcma_bus_register(struct bcma_bus *b
err = bcma_bus_scan(bus);
if (err) {
bcma_err(bus, "Failed to scan: %d\n", err);
@@ -1094,7 +1170,7 @@
}
/* Early init CC core */
@@ -228,6 +259,12 @@ int bcma_bus_register(struct bcma_bus *b
@@ -228,6 +303,12 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_early_init(&bus->drv_cc);
}
@@ -1107,7 +1183,7 @@
/* Try to get SPROM */
err = bcma_sprom_get(bus);
if (err == -ENOENT) {
@@ -242,6 +279,13 @@ int bcma_bus_register(struct bcma_bus *b
@@ -242,6 +323,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_init(&bus->drv_cc);
}
@@ -1121,7 +1197,7 @@
/* Init MIPS core */
core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
if (core) {
@@ -263,6 +307,13 @@ int bcma_bus_register(struct bcma_bus *b
@@ -263,6 +351,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_pci_init(&bus->drv_pci[1]);
}
@@ -1135,7 +1211,7 @@
/* Init GBIT MAC COMMON core */
core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
if (core) {
@@ -271,7 +322,7 @@ int bcma_bus_register(struct bcma_bus *b
@@ -271,7 +366,7 @@ int bcma_bus_register(struct bcma_bus *b
}
/* Register found cores */
@@ -1144,7 +1220,7 @@
bcma_info(bus, "Bus registered\n");
@@ -289,6 +340,8 @@ void bcma_bus_unregister(struct bcma_bus
@@ -289,6 +384,8 @@ void bcma_bus_unregister(struct bcma_bus
else if (err)
bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
@@ -1153,7 +1229,7 @@
cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
@@ -308,8 +361,6 @@ int __init bcma_bus_early_register(struc
@@ -308,8 +405,6 @@ int __init bcma_bus_early_register(struc
struct bcma_device *core;
struct bcma_device_id match;
@@ -1162,6 +1238,26 @@
match.manuf = BCMA_MANUF_BCM;
match.id = bcma_cc_core_id(bus);
match.class = BCMA_CL_SIM;
@@ -468,6 +563,11 @@ static int __init bcma_modinit(void)
if (err)
return err;
+ err = bcma_host_soc_register_driver();
+ if (err) {
+ pr_err("SoC host initialization failed\n");
+ err = 0;
+ }
#ifdef CONFIG_BCMA_HOST_PCI
err = bcma_host_pci_init();
if (err) {
@@ -485,6 +585,7 @@ static void __exit bcma_modexit(void)
#ifdef CONFIG_BCMA_HOST_PCI
bcma_host_pci_exit();
#endif
+ bcma_host_soc_unregister_driver();
bus_unregister(&bcma_bus_type);
}
module_exit(bcma_modexit)
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -32,6 +32,18 @@ static const struct bcma_device_id_name
@@ -1625,7 +1721,16 @@
u32 wrap;
void __iomem *io_addr;
@@ -310,11 +332,12 @@ struct bcma_bus {
@@ -301,6 +323,8 @@ struct bcma_bus {
struct pci_dev *host_pci;
/* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */
struct sdio_func *host_sdio;
+ /* Pointer to platform device (only for BCMA_HOSTTYPE_SOC) */
+ struct platform_device *host_pdev;
};
struct bcma_chipinfo chipinfo;
@@ -310,11 +334,12 @@ struct bcma_bus {
struct bcma_device *mapped_core;
struct list_head cores;
u8 nr_cores;
@@ -1639,7 +1744,7 @@
struct bcma_drv_mips drv_mips;
struct bcma_drv_gmac_cmn drv_gmac_cmn;
@@ -400,7 +423,14 @@ static inline void bcma_maskset16(struct
@@ -400,7 +425,14 @@ static inline void bcma_maskset16(struct
bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set);
}
@@ -2139,7 +2244,17 @@
void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -134,12 +134,16 @@ static void bcma_host_soc_block_write(st
@@ -7,6 +7,9 @@
#include "bcma_private.h"
#include "scan.h"
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_soc.h>
@@ -134,12 +137,16 @@ static void bcma_host_soc_block_write(st
static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset)
{
@@ -2156,7 +2271,7 @@
writel(value, core->io_wrap + offset);
}
@@ -161,7 +165,6 @@ static const struct bcma_host_ops bcma_h
@@ -161,7 +168,6 @@ static const struct bcma_host_ops bcma_h
int __init bcma_host_soc_register(struct bcma_soc *soc)
{
struct bcma_bus *bus = &soc->bus;
@@ -2164,9 +2279,11 @@
/* iomap only first core. We have to read some register on this core
* to scan the bus.
@@ -174,7 +177,18 @@ int __init bcma_host_soc_register(struct
@@ -173,11 +179,100 @@ int __init bcma_host_soc_register(struct
/* Host specific */
bus->hosttype = BCMA_HOSTTYPE_SOC;
bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = NULL;
- /* Register */
+ /* Initialize struct, detect chip */
@@ -2184,6 +2301,86 @@
err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
if (err)
iounmap(bus->mmio);
return err;
}
+
+#ifdef CONFIG_OF
+static int bcma_host_soc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct bcma_bus *bus;
+ int err;
+
+ /* Alloc */
+ bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL);
+ if (!bus)
+ return -ENOMEM;
+
+ /* Map MMIO */
+ bus->mmio = of_iomap(np, 0);
+ if (!bus->mmio)
+ return -ENOMEM;
+
+ /* Host specific */
+ bus->hosttype = BCMA_HOSTTYPE_SOC;
+ bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = pdev;
+
+ /* Initialize struct, detect chip */
+ bcma_init_bus(bus);
+
+ /* Register */
+ err = bcma_bus_register(bus);
+ if (err)
+ goto err_unmap_mmio;
+
+ platform_set_drvdata(pdev, bus);
+
+ return err;
+
+err_unmap_mmio:
+ iounmap(bus->mmio);
+ return err;
+}
+
+static int bcma_host_soc_remove(struct platform_device *pdev)
+{
+ struct bcma_bus *bus = platform_get_drvdata(pdev);
+
+ bcma_bus_unregister(bus);
+ iounmap(bus->mmio);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id bcma_host_soc_of_match[] = {
+ { .compatible = "brcm,bus-axi", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, bcma_host_soc_of_match);
+
+static struct platform_driver bcma_host_soc_driver = {
+ .driver = {
+ .name = "bcma-host-soc",
+ .of_match_table = bcma_host_soc_of_match,
+ },
+ .probe = bcma_host_soc_probe,
+ .remove = bcma_host_soc_remove,
+};
+
+int __init bcma_host_soc_register_driver(void)
+{
+ return platform_driver_register(&bcma_host_soc_driver);
+}
+
+void __exit bcma_host_soc_unregister_driver(void)
+{
+ platform_driver_unregister(&bcma_host_soc_driver);
+}
+#endif /* CONFIG_OF */
--- a/include/linux/bcma/bcma_regs.h
+++ b/include/linux/bcma/bcma_regs.h
@@ -39,6 +39,11 @@
@@ -2296,3 +2493,38 @@
panic("Failed to initialize BCMA bus (err %d)", err);
bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/bcma.txt
@@ -0,0 +1,32 @@
+Driver for ARM AXI Bus with Broadcom Plugins (bcma)
+
+Required properties:
+
+- compatible : brcm,bus-axi
+
+- reg : iomem address range of chipcommon core
+
+The cores on the AXI bus are automatically detected by bcma with the
+memory ranges they are using and they get registered afterwards.
+
+The top-level axi bus may contain children representing attached cores
+(devices). This is needed since some hardware details can't be auto
+detected (e.g. IRQ numbers). Also some of the cores may be responsible
+for extra things, e.g. ChipCommon providing access to the GPIO chip.
+
+Example:
+
+ axi@18000000 {
+ compatible = "brcm,bus-axi";
+ reg = <0x18000000 0x1000>;
+ ranges = <0x00000000 0x18000000 0x00100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ chipcommon {
+ reg = <0x00000000 0x1000>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };

258
target/linux/generic/patches-3.14/025-bcma_backport.patch
View File

@@ -33,7 +33,7 @@
static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
{
struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip);
@@ -215,10 +215,18 @@ int bcma_gpio_init(struct bcma_drv_cc *c
@@ -215,10 +215,22 @@ int bcma_gpio_init(struct bcma_drv_cc *c
chip->set = bcma_gpio_set_value;
chip->direction_input = bcma_gpio_direction_input;
chip->direction_output = bcma_gpio_direction_output;
@@ -42,6 +42,10 @@
chip->to_irq = bcma_gpio_to_irq;
#endif
- chip->ngpio = 16;
+#if IS_BUILTIN(CONFIG_OF)
+ if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
+ chip->of_node = cc->core->dev.of_node;
+#endif
+ switch (cc->core->bus->chipinfo.id) {
+ case BCMA_CHIP_ID_BCM5357:
+ case BCMA_CHIP_ID_BCM53572:
@@ -257,7 +261,15 @@
MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -120,56 +120,78 @@ static void bcma_release_core_dev(struct
@@ -10,6 +10,7 @@
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
+#include <linux/of_address.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -120,56 +121,121 @@ static void bcma_release_core_dev(struct
kfree(core);
}
@@ -273,6 +285,43 @@
+ return false;
+}
+
+#ifdef CONFIG_OF
+static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+ u64 size;
+ const __be32 *reg;
+
+ if (!parent || !parent->dev.of_node)
+ return NULL;
+
+ for_each_child_of_node(parent->dev.of_node, node) {
+ reg = of_get_address(node, 0, &size, NULL);
+ if (!reg)
+ continue;
+ if (of_translate_address(node, reg) == core->addr)
+ return node;
+ }
+ return NULL;
+}
+
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+
+ node = bcma_of_find_child_device(parent, core);
+ if (node)
+ core->dev.of_node = node;
+}
+#else
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+}
+#endif /* CONFIG_OF */
+
+static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+{
+ int err;
@@ -289,7 +338,13 @@
+ break;
+ case BCMA_HOSTTYPE_SOC:
+ core->dev.dma_mask = &core->dev.coherent_dma_mask;
+ core->dma_dev = &core->dev;
+ if (bus->host_pdev) {
+ core->dma_dev = &bus->host_pdev->dev;
+ core->dev.parent = &bus->host_pdev->dev;
+ bcma_of_fill_device(bus->host_pdev, core);
+ } else {
+ core->dma_dev = &core->dev;
+ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ break;
@@ -366,7 +421,7 @@
}
#ifdef CONFIG_BCMA_DRIVER_MIPS
@@ -246,6 +268,12 @@ int bcma_bus_register(struct bcma_bus *b
@@ -246,6 +312,12 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_early_init(&bus->drv_cc);
}
@@ -379,7 +434,7 @@
/* Try to get SPROM */
err = bcma_sprom_get(bus);
if (err == -ENOENT) {
@@ -260,6 +288,13 @@ int bcma_bus_register(struct bcma_bus *b
@@ -260,6 +332,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_init(&bus->drv_cc);
}
@@ -393,7 +448,7 @@
/* Init MIPS core */
core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
if (core) {
@@ -281,6 +316,13 @@ int bcma_bus_register(struct bcma_bus *b
@@ -281,6 +360,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_pci_init(&bus->drv_pci[1]);
}
@@ -407,7 +462,7 @@
/* Init GBIT MAC COMMON core */
core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
if (core) {
@@ -289,7 +331,7 @@ int bcma_bus_register(struct bcma_bus *b
@@ -289,7 +375,7 @@ int bcma_bus_register(struct bcma_bus *b
}
/* Register found cores */
@@ -416,7 +471,7 @@
bcma_info(bus, "Bus registered\n");
@@ -307,6 +349,8 @@ void bcma_bus_unregister(struct bcma_bus
@@ -307,6 +393,8 @@ void bcma_bus_unregister(struct bcma_bus
else if (err)
bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
@@ -425,7 +480,7 @@
cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
@@ -326,8 +370,6 @@ int __init bcma_bus_early_register(struc
@@ -326,8 +414,6 @@ int __init bcma_bus_early_register(struc
struct bcma_device *core;
struct bcma_device_id match;
@@ -434,6 +489,26 @@
match.manuf = BCMA_MANUF_BCM;
match.id = bcma_cc_core_id(bus);
match.class = BCMA_CL_SIM;
@@ -486,6 +572,11 @@ static int __init bcma_modinit(void)
if (err)
return err;
+ err = bcma_host_soc_register_driver();
+ if (err) {
+ pr_err("SoC host initialization failed\n");
+ err = 0;
+ }
#ifdef CONFIG_BCMA_HOST_PCI
err = bcma_host_pci_init();
if (err) {
@@ -503,6 +594,7 @@ static void __exit bcma_modexit(void)
#ifdef CONFIG_BCMA_HOST_PCI
bcma_host_pci_exit();
#endif
+ bcma_host_soc_unregister_driver();
bus_unregister(&bcma_bus_type);
}
module_exit(bcma_modexit)
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -201,6 +201,23 @@ static int bcma_sprom_valid(struct bcma_
@@ -558,7 +633,16 @@
u32 wrap;
void __iomem *io_addr;
@@ -328,11 +332,12 @@ struct bcma_bus {
@@ -319,6 +323,8 @@ struct bcma_bus {
struct pci_dev *host_pci;
/* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */
struct sdio_func *host_sdio;
+ /* Pointer to platform device (only for BCMA_HOSTTYPE_SOC) */
+ struct platform_device *host_pdev;
};
struct bcma_chipinfo chipinfo;
@@ -328,11 +334,12 @@ struct bcma_bus {
struct bcma_device *mapped_core;
struct list_head cores;
u8 nr_cores;
@@ -857,7 +941,17 @@
eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE);
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -134,12 +134,16 @@ static void bcma_host_soc_block_write(st
@@ -7,6 +7,9 @@
#include "bcma_private.h"
#include "scan.h"
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_soc.h>
@@ -134,12 +137,16 @@ static void bcma_host_soc_block_write(st
static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset)
{
@@ -874,7 +968,7 @@
writel(value, core->io_wrap + offset);
}
@@ -161,7 +165,6 @@ static const struct bcma_host_ops bcma_h
@@ -161,7 +168,6 @@ static const struct bcma_host_ops bcma_h
int __init bcma_host_soc_register(struct bcma_soc *soc)
{
struct bcma_bus *bus = &soc->bus;
@@ -882,9 +976,11 @@
/* iomap only first core. We have to read some register on this core
* to scan the bus.
@@ -174,7 +177,18 @@ int __init bcma_host_soc_register(struct
@@ -173,11 +179,100 @@ int __init bcma_host_soc_register(struct
/* Host specific */
bus->hosttype = BCMA_HOSTTYPE_SOC;
bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = NULL;
- /* Register */
+ /* Initialize struct, detect chip */
@@ -902,6 +998,86 @@
err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
if (err)
iounmap(bus->mmio);
return err;
}
+
+#ifdef CONFIG_OF
+static int bcma_host_soc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct bcma_bus *bus;
+ int err;
+
+ /* Alloc */
+ bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL);
+ if (!bus)
+ return -ENOMEM;
+
+ /* Map MMIO */
+ bus->mmio = of_iomap(np, 0);
+ if (!bus->mmio)
+ return -ENOMEM;
+
+ /* Host specific */
+ bus->hosttype = BCMA_HOSTTYPE_SOC;
+ bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = pdev;
+
+ /* Initialize struct, detect chip */
+ bcma_init_bus(bus);
+
+ /* Register */
+ err = bcma_bus_register(bus);
+ if (err)
+ goto err_unmap_mmio;
+
+ platform_set_drvdata(pdev, bus);
+
+ return err;
+
+err_unmap_mmio:
+ iounmap(bus->mmio);
+ return err;
+}
+
+static int bcma_host_soc_remove(struct platform_device *pdev)
+{
+ struct bcma_bus *bus = platform_get_drvdata(pdev);
+
+ bcma_bus_unregister(bus);
+ iounmap(bus->mmio);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id bcma_host_soc_of_match[] = {
+ { .compatible = "brcm,bus-axi", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, bcma_host_soc_of_match);
+
+static struct platform_driver bcma_host_soc_driver = {
+ .driver = {
+ .name = "bcma-host-soc",
+ .of_match_table = bcma_host_soc_of_match,
+ },
+ .probe = bcma_host_soc_probe,
+ .remove = bcma_host_soc_remove,
+};
+
+int __init bcma_host_soc_register_driver(void)
+{
+ return platform_driver_register(&bcma_host_soc_driver);
+}
+
+void __exit bcma_host_soc_unregister_driver(void)
+{
+ platform_driver_unregister(&bcma_host_soc_driver);
+}
+#endif /* CONFIG_OF */
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -21,6 +21,14 @@
@@ -1030,6 +1206,27 @@
/* driver_chipcommon_pmu.c */
u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
@@ -84,6 +88,20 @@ extern int __init bcma_host_pci_init(voi
extern void __exit bcma_host_pci_exit(void);
#endif /* CONFIG_BCMA_HOST_PCI */
+/* host_soc.c */
+#if defined(CONFIG_BCMA_HOST_SOC) && defined(CONFIG_OF)
+extern int __init bcma_host_soc_register_driver(void);
+extern void __exit bcma_host_soc_unregister_driver(void);
+#else
+static inline int __init bcma_host_soc_register_driver(void)
+{
+ return 0;
+}
+static inline void __exit bcma_host_soc_unregister_driver(void)
+{
+}
+#endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
+
/* driver_pci.c */
u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon_b.c
@@ -0,0 +1,61 @@
@@ -1139,3 +1336,38 @@
int bcma_bus_register(struct bcma_bus *bus);
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/bcma.txt
@@ -0,0 +1,32 @@
+Driver for ARM AXI Bus with Broadcom Plugins (bcma)
+
+Required properties:
+
+- compatible : brcm,bus-axi
+
+- reg : iomem address range of chipcommon core
+
+The cores on the AXI bus are automatically detected by bcma with the
+memory ranges they are using and they get registered afterwards.
+
+The top-level axi bus may contain children representing attached cores
+(devices). This is needed since some hardware details can't be auto
+detected (e.g. IRQ numbers). Also some of the cores may be responsible
+for extra things, e.g. ChipCommon providing access to the GPIO chip.
+
+Example:
+
+ axi@18000000 {
+ compatible = "brcm,bus-axi";
+ reg = <0x18000000 0x1000>;
+ ranges = <0x00000000 0x18000000 0x00100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ chipcommon {
+ reg = <0x00000000 0x1000>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };