diff options
| author | Ran Wang <[email protected]> | 2017-09-04 18:46:53 +0800 |
|---|---|---|
| committer | York Sun <[email protected]> | 2017-09-11 08:01:06 -0700 |
| commit | c1853f6f7348d86faead6ffe30c25db9d7cef144 (patch) | |
| tree | 665be5b5b5449929dbc26447008cc711d60ff714 /arch/arm/include | |
| parent | 83fa71189af3354cd09a56d61f3ed31ce082f51f (diff) | |
armv7: Add workaround for USB erratum A-009798
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 <[email protected]>
Signed-off-by: Rajesh Bhagat <[email protected]>
Signed-off-by: Suresh Gupta <[email protected]>
Signed-off-by: Ran Wang <[email protected]>
[YS: Reordered Kconfig options]
Reviewed-by: York Sun <[email protected]>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 |
1 files changed, 1 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 28c1a984182..bc5125d8331 100644 --- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h +++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h @@ -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 { |