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imx: mx7dsabresd: reset ENET_RST_B

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Reset ENET_RST_B to make ENET function stable.
Since DM_GPIO enabled, we use "gpio_spi@0_5" which corresponds
to ENET_RST_B.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan 2017-04-13 14:09:58 +08:00 committed by Stefano Babic
parent 6fbbcfdf06
commit 709fef5131
1 changed files with 17 additions and 0 deletions
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17
board/freescale/mx7dsabresd/mx7dsabresd.c
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@ -232,6 +232,23 @@ int mmc_map_to_kernel_blk(int dev_no)
int board_eth_init(bd_t *bis)
{
int ret;
unsigned int gpio;
ret = gpio_lookup_name("gpio_spi@0_5", NULL, NULL, &gpio);
if (ret) {
printf("GPIO: 'gpio_spi@0_5' not found\n");
return -ENODEV;
}
ret = gpio_request(gpio, "fec_rst");
if (ret && ret != -EBUSY) {
printf("gpio: requesting pin %u failed\n", gpio);
return ret;
}
gpio_direction_output(gpio, 0);
udelay(500);
gpio_direction_output(gpio, 1);
setup_iomux_fec();