leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

armv7: Add workaround for USB erratum A-009798

Browse Source 
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.

Shift the threshold from ~100mV towards ~130mV by setting SQRXTUNE
to 0x0 to pass 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>
[YS: Reordered Kconfig options]
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Ran Wang
2017-09-04 18:46:53 +08:00
committed by York Sun
parent 83fa71189a
commit c1853f6f73
3 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
View File

@@ -177,6 +177,7 @@ struct ccsr_gur {
#define SCFG_BASE 0x01570000
#define SCFG_USB3PRM1CR 0x070
#define SCFG_USB_TXVREFTUNE 0x9
#define SCFG_USB_SQRXTUNE_MASK 0x7
/* Supplemental Configuration Unit */
struct ccsr_scfg {