domenico/openwrt-18.06
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domenico
2025-06-24 15:51:28 +02:00
commit 22031d9dab
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71
target/linux/brcm63xx/patches-4.14/348-MIPS-BCM63XX-fix-BCM63268-USB-clock.patch Normal file
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@@ -0,0 +1,71 @@
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -587,6 +587,9 @@
#define TIMER_CTL_MONOTONIC_MASK (1 << 30)
#define TIMER_CTL_ENABLE_MASK (1 << 31)
+/* Clock reset control (63268 only) */
+#define TIMER_CLK_RST_CTL_REG 0x2c
+#define CLK_RST_CTL_USB_REF_CLK_EN (1 << 18)
/*************************************************************************
* _REG relative to RSET_WDT
@@ -1534,6 +1537,11 @@
#define STRAPBUS_63268_FCVO_SHIFT 21
#define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT)
+#define MISC_IDDQ_CTRL_6328_REG 0x48
+#define MISC_IDDQ_CTRL_63268_REG 0x4c
+
+#define IDDQ_CTRL_63268_USBH (1 << 4)
+
#define MISC_STRAPBUS_6328_REG 0x240
#define STRAPBUS_6328_FCVO_SHIFT 7
#define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT)
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -64,6 +64,26 @@ static void bcm_ub_hwclock_set(u32 mask,
bcm_perf_writel(reg, PERF_UB_CKCTL_REG);
}
+static void bcm_misc_iddq_set(u32 mask, int enable)
+{
+ u32 offset;
+ u32 reg;
+
+ if (BCMCPU_IS_6328() || BCMCPU_IS_6362())
+ offset = MISC_IDDQ_CTRL_6328_REG;
+ else if (BCMCPU_IS_63268())
+ offset = MISC_IDDQ_CTRL_63268_REG;
+ else
+ return;
+
+ reg = bcm_misc_readl(offset);
+ if (enable)
+ reg &= ~mask;
+ else
+ reg |= mask;
+ bcm_misc_writel(reg, offset);
+}
+
/*
* Ethernet MAC "misc" clock: dma clocks and main clock on 6348
*/
@@ -236,7 +256,17 @@ static void usbh_set(struct clk *clk, in
} else if (BCMCPU_IS_6368()) {
bcm_hwclock_set(CKCTL_6368_USBH_EN, enable);
} else if (BCMCPU_IS_63268()) {
+ u32 reg;
+
bcm_hwclock_set(CKCTL_63268_USBH_EN, enable);
+ bcm_misc_iddq_set(IDDQ_CTRL_63268_USBH, enable);
+ bcm63xx_core_set_reset(BCM63XX_RESET_USBH, !enable);
+ reg = bcm_timer_readl(TIMER_CLK_RST_CTL_REG);
+ if (enable)
+ reg |= CLK_RST_CTL_USB_REF_CLK_EN;
+ else
+ reg &= ~CLK_RST_CTL_USB_REF_CLK_EN;
+ bcm_timer_writel(reg, TIMER_CLK_RST_CTL_REG);
} else {
return;
}