[U-Boot] [PATCH v2 1/3] usb: rockchip-phy: implement USB2.0 phy control for Synopsys

[Heiko Stuebner <heiko@sntech.de>]

Am Dienstag, 5. Juli 2016, 10:05:52 schrieb Ziyuan Xu:
> From: Xu Ziyuan <xzy.xu@rock-chips.com>
> 
> So far, Rockchip SoCs have two kinds of USB2.0 phy, like Synopsys and
> Innosilicon. This patch applys dwc2 usb driver framework to implement
> phy_init and phy_off for Synopsys phy on Rockchip platform.
> 
> Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
> 
> ---
> 
> Changes in v2:
> - Rename rk3288_usb_phy.c to rockchip_usb_syno_phy.c
> - Rework the behaviour in otg_phy_init() and otg_phy_off()
> 
>  drivers/usb/phy/Makefile                |  1 +
>  drivers/usb/phy/rockchip_usb_syno_phy.c | 48
> +++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+)
>  create mode 100644 drivers/usb/phy/rockchip_usb_syno_phy.c
> 
> diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
> index 93d147e..8002a18 100644
> --- a/drivers/usb/phy/Makefile
> +++ b/drivers/usb/phy/Makefile
> @@ -7,3 +7,4 @@
> 
>  obj-$(CONFIG_TWL4030_USB) += twl4030.o
>  obj-$(CONFIG_OMAP_USB_PHY) += omap_usb_phy.o
> +obj-$(CONFIG_ROCKCHIP_USB_SYNO_PHY) += rockchip_usb_syno_phy.o
> diff --git a/drivers/usb/phy/rockchip_usb_syno_phy.c
> b/drivers/usb/phy/rockchip_usb_syno_phy.c new file mode 100644
> index 0000000..f79cb10
> --- /dev/null
> +++ b/drivers/usb/phy/rockchip_usb_syno_phy.c
> @@ -0,0 +1,48 @@
> +/*
> + * Copyright 2016 Rockchip Electronics Co., Ltd
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <asm/io.h>
> +
> +#include "../gadget/dwc2_udc_otg_priv.h"
> +
> +#define GRF_UOC0_CON0		0x320

That isn't terrible future proof ... the GRF offsets are different for on 
every Rockchip soc using that phy.

We do have the phy nodes in the devicetree, so shouldn't all that be 
readable from there somehow?

Heiko