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mx51evk: Use GPIO API for configuring the IOMUX

PATCH New Fabio Estevam 2 participants 2 messages Oct 25, 2011 – Oct 26, 2011

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Fabio Estevam

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#0 lore raw

PATCH 1/1 mx51evk: Use GPIO API for configuring the IOMUX

GPIO API provides mxc_request_iomux function for setting the IOMUX mode.

Use this function instead of directly writing to the IOMUX register.

Signed-off-by Fabio Estevam <[email protected]>
---
 board/freescale/mx51evk/mx51evk.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)
board/freescale/mx51evk/mx51evk.c +3 -5
index 73ca513..9cd5b3c 100644
@@ -254,16 +254,14 @@ static void power_init(void)
 	pmic_reg_write(p, REG_MODE_1, val);
 	udelay(200);
 
-	gpio_direction_output(46, 0);
-
-	/* Reset the ethernet controller over GPIO */
-	writel(0x1, IOMUXC_BASE_ADDR + 0x0AC);
-
 	/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
 	val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
 		VVIDEOEN | VAUDIOEN  | VSDEN;
 	pmic_reg_write(p, REG_MODE_1, val);
 
+	mxc_request_iomux(MX51_PIN_EIM_A20, IOMUX_CONFIG_ALT1);
+	gpio_direction_output(46, 0);
+
 	udelay(500);
 
 	gpio_set_value(46, 1);
Signature · 1 line
1.7.1
#1 lore raw

PATCH 1/1 mx51evk: Use GPIO API for configuring the IOMUX

Quoted 23 lines · Fabio Estevam

GPIO API provides mxc_request_iomux function for setting the IOMUX mode.

Use this function instead of directly writing to the IOMUX register.

Signed-off-by Fabio Estevam <[email protected]>
---
 board/freescale/mx51evk/mx51evk.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)
board/freescale/mx51evk/mx51evk.c +0 -5
index 73ca513..9cd5b3c 100644
@@ -254,16 +254,14 @@ static void power_init(void)
 	pmic_reg_write(p, REG_MODE_1, val);
 	udelay(200);
 
-	gpio_direction_output(46, 0);
-
-	/* Reset the ethernet controller over GPIO */
-	writel(0x1, IOMUXC_BASE_ADDR + 0x0AC);
-
 	/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */

board/freescale/mx51evk/mx51evk.c static void power_init(void) · line 267

Quoted 10 lines
board/freescale/mx51evk/mx51evk.c +3 -0
 	val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
 		VVIDEOEN | VAUDIOEN  | VSDEN;
 	pmic_reg_write(p, REG_MODE_1, val);
 
+	mxc_request_iomux(MX51_PIN_EIM_A20, IOMUX_CONFIG_ALT1);
+	gpio_direction_output(46, 0);
+
 	udelay(500);
 
 	gpio_set_value(46, 1);

Applied to u-boot-imx, thanks.

Best regards,
Stefano Babic

Signature · 5 lines
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