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authorRan Wang <ran.wang_1@nxp.com>2017-09-04 18:46:54 +0800
committerYork Sun <york.sun@nxp.com>2017-09-11 08:01:06 -0700
commite10d114279f01899c7eb47f5977dbceca6b6efaf (patch)
tree79f3a9efd87673c07d726424b5a1f9cc89c9f957 /arch/arm/include
parentc1853f6f7348d86faead6ffe30c25db9d7cef144 (diff)
armv7: Add workaround for USB erratum A-008997
Low Frequency Periodic Singaling (LFPS) Peak-to-Peak Differential Output Voltage Test Compliance fails using default transmitter settings Change config of transmitter signal swings by setting register PCSTXSWINGFULL to 0x47 to pass compliance tests. 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> [YS: Reordered Kconfig options] Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index bc5125d833..25e65cbd26 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -178,6 +178,9 @@ struct ccsr_gur {
#define SCFG_USB3PRM1CR 0x070
#define SCFG_USB_TXVREFTUNE 0x9
#define SCFG_USB_SQRXTUNE_MASK 0x7
+#define SCFG_USB3PRM2CR 0x074
+#define SCFG_USB_PCSTXSWINGFULL_MASK 0x0000FE00
+#define SCFG_USB_PCSTXSWINGFULL_VAL 0x00008E00
/* Supplemental Configuration Unit */
struct ccsr_scfg {