The default setting for USB High Speed Squelch Threshold results in a threshold close to or lower than 100mV. This leads to Receive Compliance test failure for a 100mV threshold.
The changes shift the threshold from ~100mV towards ~130mV resulting in passing of USB High Speed Receiver Sensitivity Compliance test.
Signed-off-by: Sriram Dash sriram.dash@nxp.com Signed-off-by: Rajesh Bhagat rajesh.bhagat@nxp.com Signed-off-by: Suresh Gupta suresh.gupta@nxp.com Signed-off-by: Ran Wang ran.wang_1@nxp.com --- arch/arm/cpu/armv7/ls102xa/Kconfig | 8 +++++++- arch/arm/cpu/armv7/ls102xa/soc.c | 9 +++++++++ arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 + 3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig b/arch/arm/cpu/armv7/ls102xa/Kconfig index 11e33d6..c605fc0 100644 --- a/arch/arm/cpu/armv7/ls102xa/Kconfig +++ b/arch/arm/cpu/armv7/ls102xa/Kconfig @@ -6,6 +6,7 @@ config ARCH_LS1021A select SYS_FSL_ERRATUM_A009942 select SYS_FSL_ERRATUM_A010315 select SYS_FSL_ERRATUM_A009008 + select SYS_FSL_ERRATUM_A009798 select SYS_FSL_SRDS_1 select SYS_HAS_SERDES select SYS_FSL_DDR_BE if SYS_FSL_DDR @@ -54,7 +55,12 @@ config SYS_FSL_ERRATUM_A010315 config SYS_FSL_ERRATUM_A009008 bool help - Workaround for USB erratum A009008 + Workaround for USB PHY erratum A009008 + +config SYS_FSL_ERRATUM_A009798 + bool + help + Workaround for USB PHY erratum A009798
config SYS_FSL_SRDS_1 bool diff --git a/arch/arm/cpu/armv7/ls102xa/soc.c b/arch/arm/cpu/armv7/ls102xa/soc.c index 986337d..ef44a6c 100644 --- a/arch/arm/cpu/armv7/ls102xa/soc.c +++ b/arch/arm/cpu/armv7/ls102xa/soc.c @@ -70,6 +70,14 @@ 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) { @@ -159,6 +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 6ea8c4b..8cafa07 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -176,6 +176,7 @@ struct ccsr_gur { #define SCFG_BASE 0x01570000 #define SCFG_USB3PRM1CR 0x070 #define USB_TXVREFTUNE 0x9 +#define USB_SQRXTUNE 0xFC7FFFFF
/* Supplemental Configuration Unit */ struct ccsr_scfg {