USB3.0 Receiver needs to enable fixed equalization for each of PHY instances in an SOC. This is similar to erratum A-009007, but this one is for LX2160A, and the register value is different.

Signed-off-by: Ran Wang ran.wang_1@nxp.com --- arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 4 ++++ arch/arm/cpu/armv8/fsl-layerscape/soc.c | 13 ++++++++++++- .../include/asm/arch-fsl-layerscape/immap_lsch3.h | 5 +++++ 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index f48481f465..f99b9d1a7a 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -191,6 +191,7 @@ config ARCH_LX2160A select SYS_FSL_DDR_VER_50 select SYS_FSL_EC1 select SYS_FSL_EC2 + select SYS_FSL_ERRATUM_A050106 select SYS_FSL_HAS_RGMII select SYS_FSL_HAS_SEC select SYS_FSL_HAS_CCN508 @@ -335,6 +336,9 @@ config SYS_FSL_ERRATUM_A009008 config SYS_FSL_ERRATUM_A009798 bool "Workaround for USB PHY erratum A009798"

+config SYS_FSL_ERRATUM_A050106 + bool "Workaround for USB PHY erratum A050106" + config SYS_FSL_ERRATUM_A010315 bool "Workaround for PCIe erratum A010315"

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index 06f3edb302..040d74dab5 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -139,7 +139,8 @@ static void erratum_a008997(void) out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3); \ out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)

-#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A) +#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A) || \ + defined(CONFIG_ARCH_LX2160A)

#define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy) \ out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1); \ @@ -171,6 +172,15 @@ static void erratum_a009007(void) #endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */ }

+static void erratum_a050106(void) +{ +#if defined(CONFIG_ARCH_LX2160A) + void __iomem *dcsr = (void __iomem *)DCSR_BASE; + + PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY1); + PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY2); +#endif +} #if defined(CONFIG_FSL_LSCH3) /* * This erratum requires setting a value to eddrtqcr1 to @@ -323,6 +333,7 @@ void fsl_lsch3_early_init_f(void) erratum_a009798(); erratum_a008997(); erratum_a009007(); + erratum_a050106(); #ifdef CONFIG_CHAIN_OF_TRUST /* In case of Secure Boot, the IBR configures the SMMU * to allow only Secure transactions. diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h index 9fab88ab2f..572765628a 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h @@ -209,8 +209,13 @@ #define DCSR_USB_PHY_RX_OVRD_IN_HI 0x200C #define USB_PHY_RX_EQ_VAL_1 0x0000 #define USB_PHY_RX_EQ_VAL_2 0x0080 +#if defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A) #define USB_PHY_RX_EQ_VAL_3 0x0380 #define USB_PHY_RX_EQ_VAL_4 0x0b80 +#elif defined(CONFIG_ARCH_LX2160A) +#define USB_PHY_RX_EQ_VAL_3 0x0080 +#define USB_PHY_RX_EQ_VAL_4 0x0880 +#endif

#define TP_ITYP_AV 0x00000001 /* Initiator available */ #define TP_ITYP_TYPE(x) (((x) & 0x6) >> 1) /* Initiator Type */