1 files changed, 112 insertions, 0 deletions
diff --git a/board/toradex/apalis_imx6/pf0100.c b/board/toradex/apalis_imx6/pf0100.c
new file mode 100644
index 0000000000..23c17d7f24
--- /dev/null
+++ b/board/toradex/apalis_imx6/pf0100.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2014, Toradex AG
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * Helpers for Freescale PMIC PF0100
+*/
+
+#include <common.h>
+#include <i2c.h>
+
+#include "pf0100_otp.inc"
+#include "pf0100.h"
+
+/* 7-bit I2C bus slave address */
+#define PFUZE100_I2C_ADDR 		(0x08)
+
+void pmic_init(void)
+{
+	uchar bus = 1;
+	uchar devid, revid, val;
+
+	puts("PMIC: ");
+	if(!(0 == i2c_set_bus_num(bus) && (0 == i2c_probe(PFUZE100_I2C_ADDR))))
+	{
+		puts("i2c bus failed\n");
+		return;
+	}
+	/* get device ident */
+	if( i2c_read(PFUZE100_I2C_ADDR, PFUZE100_DEVICEID, 1, &devid, 1) < 0)
+	{
+		puts("i2c pmic devid read failed\n");
+		return;
+	}
+	if( i2c_read(PFUZE100_I2C_ADDR, PFUZE100_REVID, 1, &revid, 1) < 0)
+	{
+		puts("i2c pmic revid read failed\n");
+		return;
+	}
+	printf("device id: 0x%.2x, revision id: 0x%.2x\n", devid, revid);
+
+	/* set VGEN1 to 1.2V */
+	val = PFUZE100_VGEN1_VAL;
+	if( i2c_write(PFUZE100_I2C_ADDR, PFUZE100_VGEN1CTL, 1, &val, 1))
+	{
+		puts("i2c write failed\n");
+		return;
+	}
+
+	/* set SWBST to 5.0V */
+	val = PFUZE100_SWBST_VAL;
+	if( i2c_write(PFUZE100_I2C_ADDR, PFUZE100_SWBSTCTL, 1, &val, 1))
+	{
+		puts("i2c write failed\n");
+		return;
+	}
+}
+
+void pf0100_prog(void)
+{
+	unsigned char bus = 1;
+	unsigned char val;
+	unsigned i;
+
+	if(!(0 == i2c_set_bus_num(bus) && (0 == i2c_probe(PFUZE100_I2C_ADDR))))
+	{
+		puts("i2c bus failed\n");
+		return;
+	}
+
+	for (i=0; i<ARRAY_SIZE(pmic_otp_prog); i++) {
+		switch(pmic_otp_prog[i].cmd) {
+		case pmic_i2c:
+			val = (unsigned char) (pmic_otp_prog[i].value & 0xff);
+			if( i2c_write(PFUZE100_I2C_ADDR, pmic_otp_prog[i].reg,
+					1, &val, 1))
+			{
+				printf("i2c write failed, reg 0x%2x, value0x%2x\n",
+						pmic_otp_prog[i].reg, val);
+				return;
+			}
+			break;
+		case pmic_delay:
+			udelay(pmic_otp_prog[i].value * 1000);
+			break;
+		case pmic_vpgm:
+			/* TODO */
+			break;
+		case pmic_pwr:
+			/* TODO */
+			break;
+		}
+	}
+}
+
+
+static int do_pf0100_prog(cmd_tbl_t *cmdtp, int flag, int argc,
+		char * const argv[])
+{
+	puts("Programming PMIC OTP...");
+	pf0100_prog();
+	puts("done. Power cycle the board\n");
+	return 0;
+}
+
+U_BOOT_CMD(
+        pf0100_otp_prog, 1, 0, do_pf0100_prog,
+        "Program the OTP fuses on the PMIC PF0100",
+        ""
+);