From mboxrd@z Thu Jan 1 00:00:00 1970 From: yinbo.zhu Date: Wed, 17 May 2017 20:04:54 +0800 Subject: [U-Boot] [PATCH 02/14] armv7: Add workaround for USB erratum A-009798 In-Reply-To: <1495022706-20200-1-git-send-email-yinbo.zhu@nxp.com> References: <1495022706-20200-1-git-send-email-yinbo.zhu@nxp.com> Message-ID: <1495022706-20200-2-git-send-email-yinbo.zhu@nxp.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de From: Suresh Gupta 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 --- arch/arm/cpu/armv7/ls102xa/Kconfig | 1 + arch/arm/cpu/armv7/ls102xa/soc.c | 10 ++++++++++ arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 + 3 files changed, 12 insertions(+) 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 c54daee..2e64708 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 */ -- 2.1.0.27.g96db324