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usb: dwc3: add DWC3_GUCTL1 reg for debug

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GUCTL1 reg has some useful functions which can be
written by user. For rockchip platform, we set
GUCTL1.DEV_FORCE_20_CLK_FOR_30_CLK (bit26, applicable
for the core is programmed to operate in 2.0 device
only) to 1 in bootrom, and after start the kernel,
we want to check whether this bit can be reset to
default 0 after the core reset. Dump GUCTL1 reg from
debugfs is more convenient for us.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
William Wu 2016-05-13 18:13:46 +08:00 committed by Felipe Balbi
parent e77c561432
commit 475c8beb35
2 changed files with 2 additions and 0 deletions
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1
drivers/usb/dwc3/core.h
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@ -86,6 +86,7 @@
#define DWC3_GCTL 0xc110
#define DWC3_GEVTEN 0xc114
#define DWC3_GSTS 0xc118
#define DWC3_GUCTL1 0xc11c
#define DWC3_GSNPSID 0xc120
#define DWC3_GGPIO 0xc124
#define DWC3_GUID 0xc128

1
drivers/usb/dwc3/debugfs.c
View File

@ -70,6 +70,7 @@ static const struct debugfs_reg32 dwc3_regs[] = {
dump_register(GCTL),
dump_register(GEVTEN),
dump_register(GSTS),
dump_register(GUCTL1),
dump_register(GSNPSID),
dump_register(GGPIO),
dump_register(GUID),