From: Suresh Gupta suresh.gupta@freescale.com
USB3PHY Observing Intermittent Failure in Rx This patch is adding the erratum for LS1021.
Signed-off-by: Sriram Dash sriram.dash@nxp.com Signed-off-by: Rajesh Bhagat rajesh.bhagat@nxp.com Signed-off-by: yinbo.zhu yinbo.zhu@nxp.com --- arch/arm/cpu/armv7/ls102xa/Kconfig | 1 + arch/arm/cpu/armv7/ls102xa/soc.c | 12 ++++++++++++ arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 5 +++++ 3 files changed, 18 insertions(+)
diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig b/arch/arm/cpu/armv7/ls102xa/Kconfig index 92afe09..926903b 100644 --- a/arch/arm/cpu/armv7/ls102xa/Kconfig +++ b/arch/arm/cpu/armv7/ls102xa/Kconfig @@ -18,6 +18,7 @@ config ARCH_LS1021A select SYS_FSL_ERRATUM_A009942 select SYS_FSL_ERRATUM_A009798 select SYS_FSL_ERRATUM_A008997 + select SYS_FSL_ERRATUM_A009007
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 19eb361..4754907 100644 --- a/arch/arm/cpu/armv7/ls102xa/soc.c +++ b/arch/arm/cpu/armv7/ls102xa/soc.c @@ -94,6 +94,17 @@ static void erratum_a008997(void) #endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */ }
+static void erratum_a009007(void) +{ +#ifdef CONFIG_SYS_FSL_ERRATUM_A009007 + u32 __iomem *usb_phy = (u32 __iomem *)USB_PHY_BASE; + writew(USB_PHY_RX_EQ_VAL_1, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI); + writew(USB_PHY_RX_EQ_VAL_2, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI); + writew(USB_PHY_RX_EQ_VAL_3, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI); + writew(USB_PHY_RX_EQ_VAL_4, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI); +#endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */ +} + void s_init(void) { } @@ -184,6 +195,7 @@ int arch_soc_init(void) erratum_a009008(); erratum_a009798(); erratum_a008997(); + erratum_a009007(); 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 5f05e0d..fc406f7 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -181,10 +181,15 @@ struct ccsr_gur { #define USB_PHY_MPLL_OVRD_IN_HI 0x0024 #define USB_PHY_LEVEL_OVRD_IN 0x002a #define USB_PHY_TX_OVRD_IN_HI 0x2002 +#define USB_PHY_RX_OVRD_IN_HI 0x200c #define USB_PHY_TX_OVRD_DRV_LO_VAL 0x784C #define USB_PHY_MPLL_OVRD_IN_HI_VAL 0x0080 #define USB_PHY_LEVEL_OVRD_IN_VAL 0xA9A5 #define USB_PHY_TX_OVRD_IN_HI_VAL 0x0003 +#define USB_PHY_RX_EQ_VAL_1 0x0000 +#define USB_PHY_RX_EQ_VAL_2 0x8000 +#define USB_PHY_RX_EQ_VAL_3 0x8004 +#define USB_PHY_RX_EQ_VAL_4 0x800C
/* Supplemental Configuration Unit */