On Fri, Jan 5, 2018 at 9:45 PM, Jun Nie jun.nie@linaro.org wrote:
Enable OTG clock and deassert reset
Signed-off-by: Jun Nie jun.nie@linaro.org
arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 1 + drivers/usb/musb-new/sunxi.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h index 2c82d0a..624d624 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h @@ -279,6 +279,7 @@ struct sunxi_ccm_reg { #define AHB_GATE_OFFSET_USB_EHCI2 26 #define AHB_GATE_OFFSET_USB_EHCI1 25 #define AHB_GATE_OFFSET_USB_EHCI0 24 +#define AHB_GATE_OFFSET_OTG_DEVICE 23 #else #define AHB_GATE_OFFSET_USB_OHCI1 30 #define AHB_GATE_OFFSET_USB_OHCI0 29 diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index 0005c1e..ce7365b 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -264,7 +264,10 @@ static int sunxi_musb_init(struct musb *musb)
setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);#ifdef CONFIG_SUNXI_GEN_SUN6I
setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
setbits_le32(&ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_OTG_DEVICE));setbits_le32(&ccm->ahb_reset0_cfg,BIT(AHB_GATE_OFFSET_USB0) |BIT(AHB_GATE_OFFSET_OTG_DEVICE));
This can certainly failed for other sun6i, because of no AHB_GATE_OFFSET_OTG_DEVICE