From 222c90be6dd203344ffb17bfe19cf6bdb0ecee47 Mon Sep 17 00:00:00 2001 From: Suresh Gupta Date: Thu, 13 Oct 2016 20:43:56 +0530 Subject: armv7: Add workaround for USB erratum A-009798 USB High Speed Squelch Threshold Adjustment This patch is adding the erratum for LS1021. Signed-off-by: Sriram Dash Signed-off-by: Rajesh Bhagat Signed-off-by: yinbo.zhu diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig b/arch/arm/cpu/armv7/ls102xa/Kconfig index df539e9..32a48d5 100644 --- a/arch/arm/cpu/armv7/ls102xa/Kconfig +++ b/arch/arm/cpu/armv7/ls102xa/Kconfig @@ -16,6 +16,7 @@ config ARCH_LS1021A select SYS_FSL_SEC_LE select SYS_FSL_ERRATUM_A009008 select SYS_FSL_ERRATUM_A009942 + select SYS_FSL_ERRATUM_A009798 menu "LS102xA architecture" depends on ARCH_LS1021A diff --git a/arch/arm/cpu/armv7/ls102xa/soc.c b/arch/arm/cpu/armv7/ls102xa/soc.c index e046049..7d63a4c 100644 --- a/arch/arm/cpu/armv7/ls102xa/soc.c +++ b/arch/arm/cpu/armv7/ls102xa/soc.c @@ -70,6 +70,15 @@ static void erratum_a009008(void) #endif /* CONFIG_SYS_FSL_ERRATUM_A009008 */ } +static void erratum_a009798(void) +{ +#ifdef CONFIG_SYS_FSL_ERRATUM_A009798 + u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE; + u32 val = in_be32(scfg + SCFG_USB3PRM1CR / 4); + out_be32(scfg + SCFG_USB3PRM1CR / 4, val & USB_SQRXTUNE); +#endif /* CONFIG_SYS_FSL_ERRATUM_A009798 */ +} + void s_init(void) { } @@ -158,6 +167,7 @@ int arch_soc_init(void) /* Erratum */ erratum_a009008(); + erratum_a009798(); return 0; } diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h index f474cfd..bfc92ee 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -175,6 +175,7 @@ struct ccsr_gur { #define SCFG_BASE 0x01570000 #define SCFG_USB3PRM1CR 0x070 #define USB_TXVREFTUNE 0x9 +#define USB_SQRXTUNE 0xFC7FFFFF /* Supplemental Configuration Unit */ -- cgit v0.10.2