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.d...@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bha...@nxp.com>
---
arch/arm/cpu/armv7/ls102xa/Kconfig | 4 ++++
arch/arm/cpu/armv7/ls102xa/soc.c | 10 ++++++++++
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 +
3 files changed, 15 insertions(+)
diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig
b/arch/arm/cpu/armv7/ls102xa/Kconfig
index 9f0188a..f816ed1 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_DDR_BE
select SYS_FSL_DDR_VER_50
select SYS_FSL_ERRATUM_A009008
+ select SYS_FSL_ERRATUM_A009798
menu "LS102xA architecture"
depends on ARCH_LS1021A
@@ -35,6 +36,9 @@ config SYS_FSL_ERRATUM_A010315
config SYS_FSL_ERRATUM_A009008
bool "Workaround for USB PHY erratum A009008"
+config SYS_FSL_ERRATUM_A009798
+ bool "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 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 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 {
--
1.9.3
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