From a2b1012bcdd8f1286c93e081c7b591130be6e898 Mon Sep 17 00:00:00 2001
From: Max Krummenacher <max.krummenacher@toradex.com>
Date: Tue, 18 Feb 2014 13:16:16 +0100
Subject: pmic: Use Apalis GPIO1 for programming voltage cntrl

---
 board/toradex/apalis_imx6/pf0100.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/board/toradex/apalis_imx6/pf0100.c b/board/toradex/apalis_imx6/pf0100.c
index 23c17d7f24..5c9d7b0566 100644
--- a/board/toradex/apalis_imx6/pf0100.c
+++ b/board/toradex/apalis_imx6/pf0100.c
@@ -10,6 +10,11 @@
 
 #include <common.h>
 #include <i2c.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
 
 #include "pf0100_otp.inc"
 #include "pf0100.h"
@@ -17,6 +22,10 @@
 /* 7-bit I2C bus slave address */
 #define PFUZE100_I2C_ADDR 		(0x08)
 
+iomux_v3_cfg_t const pmic_prog_pads[] = {
+	MX6_PAD_GPIO_2__GPIO_1_2 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
 void pmic_init(void)
 {
 	uchar bus = 1;
@@ -64,6 +73,10 @@ void pf0100_prog(void)
 	unsigned char val;
 	unsigned i;
 
+	/* set up gpio to manipulate vprog, initially off */
+	imx_iomux_v3_setup_multiple_pads(pmic_prog_pads, ARRAY_SIZE(pmic_prog_pads));
+	gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
+
 	if(!(0 == i2c_set_bus_num(bus) && (0 == i2c_probe(PFUZE100_I2C_ADDR))))
 	{
 		puts("i2c bus failed\n");
@@ -86,7 +99,7 @@ void pf0100_prog(void)
 			udelay(pmic_otp_prog[i].value * 1000);
 			break;
 		case pmic_vpgm:
-			/* TODO */
+			gpio_set_value(IMX_GPIO_NR(1, 2), pmic_otp_prog[i].value);
 			break;
 		case pmic_pwr:
 			/* TODO */
@@ -106,7 +119,7 @@ static int do_pf0100_prog(cmd_tbl_t *cmdtp, int flag, int argc,
 }
 
 U_BOOT_CMD(
-        pf0100_otp_prog, 1, 0, do_pf0100_prog,
-        "Program the OTP fuses on the PMIC PF0100",
-        ""
+	pf0100_otp_prog, 1, 0, do_pf0100_prog,
+	"Program the OTP fuses on the PMIC PF0100",
+	""
 );
-- 
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