board: ge: bx50v3, imx53ppd: use DM I2C

Remove old (pre-DM) i2c setup code.
Enable DM i2c.
Convert common code to use DM rtc.
Convert common code to read VPD from eeprom partition.
Convert the generic i2c PMIC init code to use the new da9063 driver.

mx53ppd only:
Correct RTC compatible in device tree.
Enable MXC DM i2c driver.
Define CONFIG_SYS_MALLOC_F_LEN so that DM is available in pre-reloc.
Make GPIO banks available during preloc, since initialisation is done
in board_early_init_f().
Add gpio_request() calls to satisfy the DM_GPIO compatibility API.
Remove unused power configuration.

Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Signed-off-by: Ian Ray <ian.ray@ge.com>
diff --git a/board/ge/bx50v3/Kconfig b/board/ge/bx50v3/Kconfig
index 0593856..993b055 100644
--- a/board/ge/bx50v3/Kconfig
+++ b/board/ge/bx50v3/Kconfig
@@ -15,6 +15,4 @@
 config SYS_CONFIG_NAME
 	default "ge_bx50v3"
 
-source "board/ge/common/Kconfig"
-
 endif
diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c
index 89607cf..4a75c7b 100644
--- a/board/ge/bx50v3/bx50v3.c
+++ b/board/ge/bx50v3/bx50v3.c
@@ -14,7 +14,6 @@
 #include <linux/errno.h>
 #include <linux/libfdt.h>
 #include <asm/gpio.h>
-#include <asm/mach-imx/mxc_i2c.h>
 #include <asm/mach-imx/iomux-v3.h>
 #include <asm/mach-imx/boot_mode.h>
 #include <asm/mach-imx/video.h>
@@ -27,7 +26,8 @@
 #include <asm/arch/crm_regs.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
-#include <i2c.h>
+#include <power/regulator.h>
+#include <power/da9063_pmic.h>
 #include <input.h>
 #include <pwm.h>
 #include <version.h>
@@ -85,45 +85,6 @@
 	MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
 };
 
-static struct i2c_pads_info i2c_pad_info1 = {
-	.scl = {
-		.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | I2C_PAD,
-		.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | I2C_PAD,
-		.gp = IMX_GPIO_NR(5, 27)
-	},
-	.sda = {
-		.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | I2C_PAD,
-		.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | I2C_PAD,
-		.gp = IMX_GPIO_NR(5, 26)
-	}
-};
-
-static struct i2c_pads_info i2c_pad_info2 = {
-	.scl = {
-		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | I2C_PAD,
-		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | I2C_PAD,
-		.gp = IMX_GPIO_NR(4, 12)
-	},
-	.sda = {
-		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
-		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
-		.gp = IMX_GPIO_NR(4, 13)
-	}
-};
-
-static struct i2c_pads_info i2c_pad_info3 = {
-	.scl = {
-		.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | I2C_PAD,
-		.gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | I2C_PAD,
-		.gp = IMX_GPIO_NR(1, 3)
-	},
-	.sda = {
-		.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
-		.gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
-		.gp = IMX_GPIO_NR(1, 6)
-	}
-};
-
 static void setup_iomux_uart(void)
 {
 	imx_iomux_v3_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
@@ -491,10 +452,6 @@
 
 int board_init(void)
 {
-	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
-	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
-	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
-
 	if (!read_vpd(&vpd, vpd_callback)) {
 		int ret, rescan;
 
@@ -541,53 +498,26 @@
 
 void pmic_init(void)
 {
-#define I2C_PMIC                0x2
-#define DA9063_I2C_ADDR         0x58
-#define DA9063_REG_BCORE2_CFG   0x9D
-#define DA9063_REG_BCORE1_CFG   0x9E
-#define DA9063_REG_BPRO_CFG     0x9F
-#define DA9063_REG_BIO_CFG      0xA0
-#define DA9063_REG_BMEM_CFG     0xA1
-#define DA9063_REG_BPERI_CFG    0xA2
-#define DA9063_BUCK_MODE_MASK   0xC0
-#define DA9063_BUCK_MODE_MANUAL 0x00
-#define DA9063_BUCK_MODE_SLEEP  0x40
-#define DA9063_BUCK_MODE_SYNC   0x80
-#define DA9063_BUCK_MODE_AUTO   0xC0
+	struct udevice *reg;
+	int ret, i;
+	static const char * const bucks[] = {
+		"bcore1",
+		"bcore2",
+		"bpro",
+		"bmem",
+		"bio",
+		"bperi",
+	};
 
-	uchar val;
-
-	i2c_set_bus_num(I2C_PMIC);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BCORE2_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BCORE2_CFG, 1, &val, 1);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BCORE1_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BCORE1_CFG, 1, &val, 1);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BPRO_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BPRO_CFG, 1, &val, 1);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BIO_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BIO_CFG, 1, &val, 1);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BMEM_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BMEM_CFG, 1, &val, 1);
-
-	i2c_read(DA9063_I2C_ADDR, DA9063_REG_BPERI_CFG, 1, &val, 1);
-	val &= ~DA9063_BUCK_MODE_MASK;
-	val |= DA9063_BUCK_MODE_SYNC;
-	i2c_write(DA9063_I2C_ADDR, DA9063_REG_BPERI_CFG, 1, &val, 1);
+	for (i = 0; i < ARRAY_SIZE(bucks); i++) {
+		ret = regulator_get_by_devname(bucks[i], &reg);
+		if (reg < 0) {
+			printf("%s(): Unable to get regulator %s: %d\n",
+			       __func__, bucks[i], ret);
+			continue;
+		}
+		regulator_set_mode(reg, DA9063_BUCKMODE_SYNC);
+	}
 }
 
 int board_late_init(void)
diff --git a/board/ge/common/Kconfig b/board/ge/common/Kconfig
deleted file mode 100644
index 637b264..0000000
--- a/board/ge/common/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
-config SYS_VPD_EEPROM_I2C_ADDR
-	hex "I2C address of the EEPROM device used for VPD"
-	help
-	  VPD = Vital Product Data
-
-config SYS_VPD_EEPROM_I2C_BUS
-	int "I2C bus of the EEPROM device used for VPD."
-
-config SYS_VPD_EEPROM_SIZE
-	int "Size in bytes of the EEPROM device used for VPD"
-
-config SYS_VPD_EEPROM_I2C_ADDR_LEN
-	int "Number of bytes to use for VPD EEPROM address"
-	default 1
diff --git a/board/ge/common/ge_common.c b/board/ge/common/ge_common.c
index d7e21de..48c3778 100644
--- a/board/ge/common/ge_common.c
+++ b/board/ge/common/ge_common.c
@@ -5,27 +5,24 @@
 
 #include <common.h>
 #include <env.h>
-#include <i2c.h>
+#include <dm/uclass.h>
 #include <rtc.h>
 
 void check_time(void)
 {
+	struct udevice *dev;
 	int ret, i;
 	struct rtc_time tm;
 	u8 retry = 3;
 
-	unsigned int current_i2c_bus = i2c_get_bus_num();
-
-	ret = i2c_set_bus_num(CONFIG_SYS_RTC_BUS_NUM);
-	if (ret < 0) {
+	ret = uclass_get_device(UCLASS_RTC, 0, &dev);
+	if (ret) {
 		env_set("rtc_status", "FAIL");
 		return;
 	}
 
-	rtc_init();
-
 	for (i = 0; i < retry; i++) {
-		ret = rtc_get(&tm);
+		ret = dm_rtc_get(dev, &tm);
 		if (!ret || ret == -EINVAL)
 			break;
 	}
@@ -40,7 +37,7 @@
 		tm.tm_year = 2036;
 
 		for (i = 0; i < retry; i++) {
-			ret = rtc_set(&tm);
+			ret = dm_rtc_set(dev, &tm);
 			if (!ret)
 				break;
 		}
@@ -55,7 +52,5 @@
 		env_set("rtc_status", "2038");
 	else
 		env_set("rtc_status", "OK");
-
-	i2c_set_bus_num(current_i2c_bus);
 }
 
diff --git a/board/ge/common/vpd_reader.c b/board/ge/common/vpd_reader.c
index 12410d9..4df411c 100644
--- a/board/ge/common/vpd_reader.c
+++ b/board/ge/common/vpd_reader.c
@@ -8,6 +8,9 @@
 #include <i2c.h>
 #include <linux/bch.h>
 #include <stdlib.h>
+#include <dm/uclass.h>
+#include <i2c_eeprom.h>
+#include <hexdump.h>
 
 /* BCH configuration */
 
@@ -200,28 +203,34 @@
 	     int (*process_block)(struct vpd_cache *, u8 id, u8 version,
 				  u8 type, size_t size, u8 const *data))
 {
-	static const size_t size = CONFIG_SYS_VPD_EEPROM_SIZE;
-
-	int res;
+	struct udevice *dev;
+	int ret;
 	u8 *data;
-	unsigned int current_i2c_bus = i2c_get_bus_num();
+	int size;
 
-	res = i2c_set_bus_num(CONFIG_SYS_VPD_EEPROM_I2C_BUS);
-	if (res < 0)
-		return res;
+	ret = uclass_get_device_by_name(UCLASS_I2C_EEPROM, "vpd", &dev);
+	if (ret)
+		return ret;
+
+	size = i2c_eeprom_size(dev);
+	if (size < 0) {
+		printf("Unable to get size of eeprom: %d\n", ret);
+		return ret;
+	}
 
 	data = malloc(size);
 	if (!data)
 		return -ENOMEM;
 
-	res = i2c_read(CONFIG_SYS_VPD_EEPROM_I2C_ADDR, 0,
-		       CONFIG_SYS_VPD_EEPROM_I2C_ADDR_LEN,
-		       data, size);
-	if (res == 0)
-		res = vpd_reader(size, data, cache, process_block);
+	ret = i2c_eeprom_read(dev, 0, data, size);
+	if (ret) {
+		free(data);
+		return ret;
+	}
+
+	ret = vpd_reader(size, data, cache, process_block);
 
 	free(data);
 
-	i2c_set_bus_num(current_i2c_bus);
-	return res;
+	return ret;
 }
diff --git a/board/ge/mx53ppd/Kconfig b/board/ge/mx53ppd/Kconfig
index bebb2fa..6dc3818 100644
--- a/board/ge/mx53ppd/Kconfig
+++ b/board/ge/mx53ppd/Kconfig
@@ -13,6 +13,4 @@
 config SYS_CONFIG_NAME
 	default "mx53ppd"
 
-source "board/ge/common/Kconfig"
-
 endif
diff --git a/board/ge/mx53ppd/mx53ppd.c b/board/ge/mx53ppd/mx53ppd.c
index 105edd2..ea3f217 100644
--- a/board/ge/mx53ppd/mx53ppd.c
+++ b/board/ge/mx53ppd/mx53ppd.c
@@ -125,34 +125,6 @@
 	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 }
 
-#define I2C_PAD_CTRL	(PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
-			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
-
-static void setup_iomux_i2c(void)
-{
-	static const iomux_v3_cfg_t i2c1_pads[] = {
-		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
-		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
-	};
-
-	imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
-}
-
-#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
-
-static struct i2c_pads_info i2c_pad_info1 = {
-	.scl = {
-		.i2c_mode = MX53_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
-		.gpio_mode = MX53_PAD_EIM_D28__GPIO3_28 | I2C_PAD,
-		.gp = IMX_GPIO_NR(3, 28)
-	},
-	.sda = {
-		.i2c_mode = MX53_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
-		.gpio_mode = MX53_PAD_EIM_D21__GPIO3_21 | I2C_PAD,
-		.gp = IMX_GPIO_NR(3, 21)
-	}
-};
-
 static int clock_1GHz(void)
 {
 	int ret;
@@ -182,8 +154,10 @@
 	int i;
 
 	imx_iomux_v3_setup_multiple_pads(ppd_pads, ARRAY_SIZE(ppd_pads));
-	for (i = 0; i < ARRAY_SIZE(ppd_gpios); ++i)
+	for (i = 0; i < ARRAY_SIZE(ppd_gpios); ++i) {
+		gpio_request(ppd_gpios[i].gpio, "request");
 		gpio_direction_output(ppd_gpios[i].gpio, ppd_gpios[i].value);
+	}
 }
 
 int board_early_init_f(void)
@@ -256,9 +230,6 @@
 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 
 	mxc_set_sata_internal_clock();
-	setup_iomux_i2c();
-
-	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 
 	return 0;
 }
diff --git a/board/ge/mx53ppd/mx53ppd_video.c b/board/ge/mx53ppd/mx53ppd_video.c
index 394dcd6..9dd9f0c 100644
--- a/board/ge/mx53ppd/mx53ppd_video.c
+++ b/board/ge/mx53ppd/mx53ppd_video.c
@@ -104,6 +104,7 @@
 	pwm_config(1, 5000000, 5000000);
 
 	/* Backlight Power */
+	gpio_request(BACKLIGHT_ENABLE, "BACKLIGHT_ENABLE");
 	gpio_direction_output(BACKLIGHT_ENABLE, 1);
 
 	pwm_enable(1);