From: William Wu Date: Fri, 13 May 2016 10:13:46 +0000 (+0800) Subject: usb: dwc3: add DWC3_GUCTL1 reg for debug X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=475c8beb35e129c2f33182f476373db04008892e;p=linux-beck.git usb: dwc3: add DWC3_GUCTL1 reg for debug 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 Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 243e7a1cdc8c..dcdba14e10f0 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -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 diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c index 89c26e09870c..31926dda43c9 100644 --- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -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),