Low Frequency Periodic Singaling (LFPS) Peak-to-Peak Differential
Output Voltage Test Compliance fails using default transmitter settings
Change settings required for transmitter signal swings to pass
compliance tests.
Signed-off-by: Sriram Dash <sriram.d...@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bha...@nxp.com>
Signed-off-by: Suresh Gupta <suresh.gu...@nxp.com>
Signed-off-by: Ran Wang <ran.wan...@nxp.com>
---
Change in v3:
- none
Change in v2:
In function erratum_a008997():
1.Put a blank line after variable declaration.
arch/arm/cpu/armv7/ls102xa/Kconfig | 6 ++++++
arch/arm/cpu/armv7/ls102xa/soc.c | 14 ++++++++++++++
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 3 +++
3 files changed, 23 insertions(+)
diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig
b/arch/arm/cpu/armv7/ls102xa/Kconfig
index 609333e..0acff07 100644
--- a/arch/arm/cpu/armv7/ls102xa/Kconfig
+++ b/arch/arm/cpu/armv7/ls102xa/Kconfig
@@ -7,6 +7,7 @@ config ARCH_LS1021A
select SYS_FSL_ERRATUM_A010315
select SYS_FSL_ERRATUM_A009008
select SYS_FSL_ERRATUM_A009798
+ select SYS_FSL_ERRATUM_A008997
select SYS_FSL_SRDS_1
select SYS_HAS_SERDES
select SYS_FSL_DDR_BE if SYS_FSL_DDR
@@ -63,6 +64,11 @@ config SYS_FSL_ERRATUM_A009798
help
Workaround for USB PHY erratum A009798
+config SYS_FSL_ERRATUM_A008997
+ bool
+ help
+ Workaround for USB PHY erratum A008997
+
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 9401175..6f8eb0b 100644
--- a/arch/arm/cpu/armv7/ls102xa/soc.c
+++ b/arch/arm/cpu/armv7/ls102xa/soc.c
@@ -81,6 +81,19 @@ static void erratum_a009798(void)
#endif /* CONFIG_SYS_FSL_ERRATUM_A009798 */
}
+static void erratum_a008997(void)
+{
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008997
+ u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
+ u32 val = in_be32(scfg + SCFG_USB3PRM2CR / 4);
+
+ val &= ~USB_PCSTXSWINGFULL_MASK;
+ val |= USB_PCSTXSWINGFULL_VAL;
+ out_be32(scfg + SCFG_USB3PRM2CR / 4, val);
+#endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */
+}
+
+
void s_init(void)
{
}
@@ -170,6 +183,7 @@ int arch_soc_init(void)
/* Erratum */
erratum_a009008();
erratum_a009798();
+ erratum_a008997();
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 8cafa07..539c1cf 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -177,6 +177,9 @@ struct ccsr_gur {
#define SCFG_USB3PRM1CR 0x070
#define USB_TXVREFTUNE 0x9
#define USB_SQRXTUNE 0xFC7FFFFF
+#define SCFG_USB3PRM2CR 0x074
+#define USB_PCSTXSWINGFULL_MASK 0x0000FE00
+#define USB_PCSTXSWINGFULL_VAL 0x00008E00
/* Supplemental Configuration Unit */
struct ccsr_scfg {
--
2.1.0.27.g96db324
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
