From: Rostislav Lisovy <lisovy@gmail.com>
To: barebox@lists.infradead.org
Cc: Rostislav Lisovy <lisovy@gmail.com>, pisa@cmp.felk.cvut.cz
Subject: [PATCH 2/3] ARM: i.mx53: Parse Reset GPIO pin in FEC driver from Devicetree
Date: Wed, 20 Nov 2013 22:22:25 +0100 [thread overview]
Message-ID: <1384982546-9111-3-git-send-email-lisovy@gmail.com> (raw)
In-Reply-To: <1384982546-9111-1-git-send-email-lisovy@gmail.com>
Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
index 2f31352..31fb2aa 100644
--- a/drivers/net/fec_imx.c
+++ b/drivers/net/fec_imx.c
@@ -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 +674,22 @@ 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)) {
+ dev_info(dev, "'phy-reset' gpio is not valid\n");
+ } else {
+ 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) {
--
1.7.10.4
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next prev parent reply other threads:[~2013-11-20 21:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-20 21:22 [PATCH 0/3 v3] Support for Voipac X53-DMM-668 module and Voipac Baseboard Rostislav Lisovy
2013-11-20 21:22 ` [PATCH 1/3] ARM: dts: i.mx53: Internal keyboard controller + i2c pinmux Rostislav Lisovy
2013-11-20 21:22 ` Rostislav Lisovy [this message]
2013-11-22 7:09 ` [PATCH 2/3] ARM: i.mx53: Parse Reset GPIO pin in FEC driver from Devicetree Sascha Hauer
2013-11-22 9:34 ` Alexander Shiyan
2013-11-20 21:22 ` [PATCH 3/3] ARM: i.mx53: Support for Voipac board with X53-DMM-668 module Rostislav Lisovy
-- strict thread matches above, loose matches on Subject: below --
2013-11-12 22:46 [PATCH 0/3 v2] Support for Voipac X53-DMM-668 module and Voipac Baseboard Rostislav Lisovy
2013-11-12 22:46 ` [PATCH 2/3] ARM: i.mx53: Parse Reset GPIO pin in FEC driver from Devicetree Rostislav Lisovy
2013-11-13 10:35 ` Sascha Hauer
2013-11-05 14:42 [PATCH 0/3] Support for Voipac X53-DMM-668 module and Voipac Baseboard Rostislav Lisovy
2013-11-05 14:42 ` [PATCH 2/3] ARM: i.mx53: Parse Reset GPIO pin in FEC driver from Devicetree Rostislav Lisovy
2013-11-05 16:15 ` Jean-Christophe PLAGNIOL-VILLARD
2013-11-05 19:11 ` Pavel Pisa
2013-11-06 8:39 ` Sascha Hauer
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