sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

ARM: i.mx53: Parse Reset GPIO pin in FEC driver from Devicetree 

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Rostislav Lisovy 2013-11-20 22:22:25 +01:00 committed by Sascha Hauer
parent bb7929aaaa
commit 5c1846b625
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/fec_imx.c
View File

@ -27,6 +27,8 @@
#include <linux/clk.h>
#include <linux/err.h>
#include <of_net.h>
#include <of_gpio.h>
#include <gpio.h>
#include <asm/mmu.h>
@ -643,6 +645,7 @@ static int fec_probe(struct device_d *dev)
void *base;
int ret;
enum fec_type type;
int phy_reset;
ret = dev_get_drvdata(dev, (unsigned long *)&type);
if (ret)
@ -671,6 +674,20 @@ static int fec_probe(struct device_d *dev)
fec->regs = dev_request_mem_region(dev, 0);
phy_reset = of_get_named_gpio(dev->device_node, "phy-reset-gpios", 0);
if (gpio_is_valid(phy_reset)) {
ret = gpio_request(phy_reset, "phy-reset");
if (ret)
goto err_free;
ret = gpio_direction_output(phy_reset, 0);
if (ret)
goto err_free;
udelay(10);
gpio_set_value(phy_reset, 1);
}
/* Reset chip. */
writel(FEC_ECNTRL_RESET, fec->regs + FEC_ECNTRL);
while(readl(fec->regs + FEC_ECNTRL) & 1) {