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rockchip: rk3328: board: add support of dwc2 gadget

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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>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Meng Dongyang 2017-06-28 19:22:44 +08:00 committed by Philipp Tomsich
parent dd22bace7a
commit c93bef9323
1 changed files with 42 additions and 0 deletions
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42
board/rockchip/evb_rk3328/evb-rk3328.c
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@ -16,7 +16,49 @@ int board_init(void)
return 0;
}
#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)
{
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_cleanup(int index, enum usb_init_type init)
{
return 0;
}
#endif