nitrogen6x: phy: add 100 us delay after phy reset
Testing shows that the Micrel PHY may not be completely out
of reset if accessed immediately.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index e795492..a89a15c 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -246,6 +246,7 @@
gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
+ udelay(100); /* Wait 100 us before using mii interface */
}
static iomux_v3_cfg_t const usb_pads[] = {