diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/dts/rk3288.dtsi | 1 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/board.c | 72 |
2 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/dts/rk3288.dtsi b/arch/arm/dts/rk3288.dtsi index 3dab0fc83e..bcf051a9d9 100644 --- a/arch/arm/dts/rk3288.dtsi +++ b/arch/arm/dts/rk3288.dtsi @@ -454,6 +454,7 @@ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru HCLK_OTG0>; clock-names = "otg"; + dr_mode = "otg"; phys = <&usbphy0>; phy-names = "usb2-phy"; status = "disabled"; diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c index b07e0738ea..f662b26938 100644 --- a/arch/arm/mach-rockchip/board.c +++ b/arch/arm/mach-rockchip/board.c @@ -85,6 +85,78 @@ void lowlevel_init(void) { } +#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG) +#include <usb.h> +#include <usb/dwc2_udc.h> + +static struct dwc2_plat_otg_data rk3288_otg_data = { + .rx_fifo_sz = 512, + .np_tx_fifo_sz = 16, + .tx_fifo_sz = 128, +}; + +int board_usb_init(int index, enum usb_init_type init) +{ + int node, phy_node; + const char *mode; + bool matched = false; + const void *blob = gd->fdt_blob; + u32 grf_phy_offset; + + /* find the usb_otg node */ + node = fdt_node_offset_by_compatible(blob, -1, + "rockchip,rk3288-usb"); + + while (node > 0) { + mode = fdt_getprop(blob, node, "dr_mode", NULL); + if (mode && strcmp(mode, "otg") == 0) { + matched = true; + break; + } + + node = fdt_node_offset_by_compatible(blob, node, + "rockchip,rk3288-usb"); + } + if (!matched) { + debug("Not found usb_otg device\n"); + return -ENODEV; + } + rk3288_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg"); + + node = fdtdec_lookup_phandle(blob, node, "phys"); + if (node <= 0) { + debug("Not found usb phy device\n"); + return -ENODEV; + } + + phy_node = fdt_parent_offset(blob, node); + if (phy_node <= 0) { + debug("Not found usb phy device\n"); + return -ENODEV; + } + + rk3288_otg_data.phy_of_node = phy_node; + grf_phy_offset = fdtdec_get_addr(blob, node, "reg"); + + /* find the grf node */ + node = fdt_node_offset_by_compatible(blob, -1, + "rockchip,rk3288-grf"); + if (node <= 0) { + debug("Not found grf device\n"); + return -ENODEV; + } + rk3288_otg_data.regs_phy = grf_phy_offset + + fdtdec_get_addr(blob, node, "reg"); + + return dwc2_udc_probe(&rk3288_otg_data); +} + +int board_usb_cleanup(int index, enum usb_init_type init) +{ + return 0; +} +#endif + static int do_clock(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { |