From adc4a2bd03ad6ab4cc7f73609d60ab740c8126e6 Mon Sep 17 00:00:00 2001
From: Troy Kisky <troy.kisky@boundarydevices.com>
Date: Thu, 2 Oct 2014 12:16:29 -0700
Subject: [PATCH] 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>
---
board/boundary/nitrogen6x/nitrogen6x.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index e7954920465..a89a15ca746 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -246,6 +246,7 @@ static void setup_iomux_enet(void)
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[] = {
--
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