Probe dwc2 udc in the function of board_usb_start to enable usb gadget function.
Signed-off-by: Meng Dongyang daniel.meng@rock-chips.com Reviewed-by: Simon Glass sjg@chromium.org ---
Changes in v4: None Changes in v3: None
Changes in v2: - Splited from patch [07/08] of v1
board/rockchip/evb_rk3328/evb-rk3328.c | 43 +++++++++++++++++++++++++++++++--- 1 file changed, 40 insertions(+), 3 deletions(-)
diff --git a/board/rockchip/evb_rk3328/evb-rk3328.c b/board/rockchip/evb_rk3328/evb-rk3328.c index a7895cb..7fc25bb 100644 --- a/board/rockchip/evb_rk3328/evb-rk3328.c +++ b/board/rockchip/evb_rk3328/evb-rk3328.c @@ -31,12 +31,49 @@ int dram_init_banksize(void) return 0; }
-int usb_gadget_handle_interrupts(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 rk3328_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) { - return 0; + int node; + const char *mode; + bool matched = false; + const void *blob = gd->fdt_blob; + + /* find the usb_otg node */ + node = fdt_node_offset_by_compatible(blob, -1, + "rockchip,rk3328-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,rk3328-usb"); + } + if (!matched) { + debug("Not found usb_otg device\n"); + return -ENODEV; + } + + rk3328_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg"); + + return dwc2_udc_probe(&rk3328_otg_data); }
-int board_usb_init(int index, enum usb_init_type init) +int board_usb_cleanup(int index, enum usb_init_type init) { return 0; } +#endif