x86: dfi-bt700: Add xHCI USB support

[u-boot] / board / dfi / dfi-bt700 / dfi-bt700.c

diff --git a/board/dfi/dfi-bt700/dfi-bt700.c b/board/dfi/dfi-bt700/dfi-bt700.c
index 8645bdc795be6e09d4ec1865bee1f38c5c4c2920..3dd2036d11e166816556211297b1d3c2196d750b 100644 (file)
--- a/board/dfi/dfi-bt700/dfi-bt700.c
+++ b/board/dfi/dfi-bt700/dfi-bt700.c
@@ -28,3 +28,30 @@ int board_early_init_f(void)
 
        return 0;
 }
+
+int board_late_init(void)
+{
+       struct gpio_desc desc;
+       int ret;
+
+       ret = dm_gpio_lookup_name("F10", &desc);
+       if (ret)
+               debug("gpio ret=%d\n", ret);
+       ret = dm_gpio_request(&desc, "xhci_hub_reset");
+       if (ret)
+               debug("gpio_request ret=%d\n", ret);
+       ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
+       if (ret)
+               debug("gpio dir ret=%d\n", ret);
+
+       /* Pull xHCI hub reset to low (active low) */
+       dm_gpio_set_value(&desc, 0);
+
+       /* Wait at least 5 ms, so lets choose 10 to be safe */
+       mdelay(10);
+
+       /* Pull xHCI hub reset to high (active low) */
+       dm_gpio_set_value(&desc, 1);
+
+       return 0;
+}