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| author | Nikhil Badola | 2015-09-04 06:45:58 +0200 |
|---|---|---|
| committer | Felipe Balbi | 2015-09-27 17:54:31 +0200 |
| commit | db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3 (patch) | |
| tree | 432c121be730e9333f10efcd857afaf2a986c7f0 /drivers/usb/dwc3/core.h | |
| parent | Documentation: dt: dwc3: Add snps,quirk-frame-length-adjustment property (diff) | |
| download | kernel-qcow2-linux-db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3.tar.gz kernel-qcow2-linux-db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3.tar.xz kernel-qcow2-linux-db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3.zip | |
usb: dwc3: Add frame length adjustment quirk
Add adjust_frame_length_quirk for writing to fladj register
which adjusts (micro)frame length to value provided by
"snps,quirk-frame-length-adjustment" property thus avoiding
USB 2.0 devices to time-out over a longer run
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 044778884585..91887455133a 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -124,6 +124,7 @@ #define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10)) #define DWC3_GHWPARAMS8 0xc600 +#define DWC3_GFLADJ 0xc630 /* Device Registers */ #define DWC3_DCFG 0xc700 @@ -234,6 +235,10 @@ /* Global HWPARAMS6 Register */ #define DWC3_GHWPARAMS6_EN_FPGA (1 << 7) +/* Global Frame Length Adjustment Register */ +#define DWC3_GFLADJ_30MHZ_SDBND_SEL (1 << 7) +#define DWC3_GFLADJ_30MHZ_MASK 0x3f + /* Device Configuration Register */ #define DWC3_DCFG_DEVADDR(addr) ((addr) << 3) #define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f) |