[U-Boot] [[PATCH v2] 5/8] sunxi: musb: Enable OTG device clock for H3
Jagan Teki
jagannadh.teki at gmail.com
Sun Jan 28 07:07:01 UTC 2018
On Fri, Jan 5, 2018 at 9:45 PM, Jun Nie <jun.nie at linaro.org> wrote:
> Enable OTG clock and deassert reset
>
> Signed-off-by: Jun Nie <jun.nie at 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
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