Merge branch 'for-next/protonic' into master

2 files changed, 1035 insertions, 0 deletions

diff --git a/arch/arm/boards/protonic-imx6/Makefile b/arch/arm/boards/protonic-imx6/Makefile
index b08c4a93ca..01c7a259e9 100644
--- a/arch/arm/boards/protonic-imx6/Makefile
+++ b/arch/arm/boards/protonic-imx6/Makefile
@@ -1 +1,2 @@
+obj-y += board.o
 lwl-y += lowlevel.o
diff --git a/arch/arm/boards/protonic-imx6/board.c b/arch/arm/boards/protonic-imx6/board.c
new file mode 100644
index 0000000000..daae9a527c
--- /dev/null
+++ b/arch/arm/boards/protonic-imx6/board.c
@@ -0,0 +1,1034 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: 2012 Steffen Trumtrar, Pengutronix
+// SPDX-FileCopyrightText: 2014 Protonic Holland
+// SPDX-FileCopyrightText: 2020 Oleksij Rempel, Pengutronix
+
+#include <bbu.h>
+#include <common.h>
+#include <environment.h>
+#include <fcntl.h>
+#include <gpio.h>
+#include <i2c/i2c.h>
+#include <mach/bbu.h>
+#include <mach/imx6.h>
+#include <net.h>
+#include <of_device.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <usb/usb.h>
+
+#define GPIO_HW_REV_ID  {\
+	{IMX_GPIO_NR(2, 8), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "rev_id0"}, \
+	{IMX_GPIO_NR(2, 9), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "rev_id1"}, \
+	{IMX_GPIO_NR(2, 10), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "rev_id2"} \
+}
+
+#define GPIO_HW_TYPE_ID  {\
+	{IMX_GPIO_NR(2, 11), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "hw_id0"}, \
+	{IMX_GPIO_NR(2, 12), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "hw_id1"}, \
+	{IMX_GPIO_NR(2, 13), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "hw_id2"}, \
+	{IMX_GPIO_NR(2, 14), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "hw_id3"}, \
+	{IMX_GPIO_NR(2, 15), GPIOF_DIR_IN | GPIOF_ACTIVE_LOW, "hw_id4"} \
+}
+
+enum {
+	HW_TYPE_PRTI6Q = 0,
+	HW_TYPE_PRTWD2 = 1,
+	HW_TYPE_ALTI6S = 2,
+	HW_TYPE_VICUT1 = 4,
+	HW_TYPE_ALTI6P = 6,
+	HW_TYPE_PRTMVT = 8,
+	HW_TYPE_PRTI6G = 10,
+	HW_TYPE_PRTRVT = 12,
+	HW_TYPE_VICUT2 = 16,
+	HW_TYPE_PLYM2M = 20,
+	HW_TYPE_PRTVT7 = 22,
+	HW_TYPE_LANMCU = 23,
+	HW_TYPE_PLYBAS = 24,
+	HW_TYPE_VICTGO = 28,
+};
+
+enum prt_imx6_kvg_pw_mode {
+	PW_MODE_KVG_WITH_YACO = 0,
+	PW_MODE_KVG_NEW = 1,
+	PW_MODE_KUBOTA = 2,
+};
+
+/* board specific flags */
+#define PRT_IMX6_BOOTCHOOSER		BIT(3)
+#define PRT_IMX6_USB_LONG_DELAY		BIT(2)
+#define PRT_IMX6_BOOTSRC_EMMC		BIT(1)
+#define PRT_IMX6_BOOTSRC_SPI_NOR	BIT(0)
+
+static struct prt_imx6_priv *prt_priv;
+struct prt_machine_data {
+	unsigned int hw_id;
+	unsigned int hw_rev;
+	unsigned int i2c_addr;
+	unsigned int i2c_adapter;
+	unsigned int flags;
+	int (*init)(struct prt_imx6_priv *priv);
+};
+
+struct prt_imx6_priv {
+	struct device_d *dev;
+	const struct prt_machine_data *dcfg;
+	unsigned int hw_id;
+	unsigned int hw_rev;
+	const char *name;
+	struct poller_async poller;
+	unsigned int usb_delay;
+};
+
+struct prti6q_rfid_contents {
+	u8 mac[6];
+	char serial[10];
+	u8 cs;
+} __attribute__ ((packed));
+
+#define GPIO_DIP1_FB   IMX_GPIO_NR(4, 18)
+#define GPIO_FORCE_ON1 IMX_GPIO_NR(2, 30)
+#define GPIO_ON1_CTRL  IMX_GPIO_NR(4, 21)
+#define GPIO_ON2_CTRL  IMX_GPIO_NR(4, 22)
+
+static const struct gpio prt_imx6_kvg_gpios[] = {
+	{
+		.gpio = GPIO_DIP1_FB,
+		.flags = GPIOF_IN,
+		.label = "DIP1_FB",
+	},
+	{
+		.gpio = GPIO_FORCE_ON1,
+		.flags = GPIOF_OUT_INIT_HIGH,
+		.label = "FORCE_ON1",
+	},
+	{
+		.gpio = GPIO_ON1_CTRL,
+		.flags = GPIOF_IN,
+		.label = "ON1_CTRL",
+	},
+	{
+		.gpio = GPIO_ON2_CTRL,
+		.flags = GPIOF_IN,
+		.label = "ON2_CTRL",
+	},
+};
+
+static int prt_imx6_read_rfid(struct prt_imx6_priv *priv, void *buf,
+			      size_t size)
+{
+	const struct prt_machine_data *dcfg = priv->dcfg;
+	struct device_d *dev = priv->dev;
+	struct i2c_client cl;
+	int ret;
+
+	cl.addr = dcfg->i2c_addr;
+	cl.adapter = i2c_get_adapter(dcfg->i2c_adapter);
+	if (!cl.adapter) {
+		dev_err(dev, "i2c bus not found\n");
+		return -ENODEV;
+	}
+
+	/* 0x6000 user storage in the RFID tag */
+	ret = i2c_read_reg(&cl, 0x6000 | I2C_ADDR_16_BIT, buf, size);
+	if (ret < 0) {
+		dev_err(dev, "Failed to read the RFID: %i\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static u8 prt_imx6_calc_rfid_cs(void *buf, size_t size)
+{
+	unsigned int cs = 0;
+	u8 *dat = buf;
+	int t;
+
+	for (t = 0; t < size - 1; t++) {
+		cs += dat[t];
+	}
+
+	cs ^= 0xff;
+
+	return cs & 0xff;
+
+}
+
+static int prt_imx6_set_mac(struct prt_imx6_priv *priv,
+			    struct prti6q_rfid_contents *rfid)
+{
+	struct device_d *dev = priv->dev;
+	struct device_node *node;
+
+	node = of_find_node_by_alias(of_get_root_node(), "ethernet0");
+	if (!node) {
+		dev_err(dev, "Cannot find FEC!\n");
+		return -ENODEV;
+	}
+
+	if (!is_valid_ether_addr(&rfid->mac[0])) {
+		unsigned char ethaddr_str[sizeof("xx:xx:xx:xx:xx:xx")];
+
+		ethaddr_to_string(&rfid->mac[0], ethaddr_str);
+		dev_err(dev, "bad MAC addr: %s\n", ethaddr_str);
+
+		return -EILSEQ;
+	}
+
+	of_eth_register_ethaddr(node, &rfid->mac[0]);
+
+	return 0;
+}
+
+static int prt_of_fixup_serial(struct device_node *dstroot, void *arg)
+{
+	struct device_node *srcroot = arg;
+	const char *ser;
+	int len;
+
+	ser = of_get_property(srcroot, "serial-number", &len);
+	return of_set_property(dstroot, "serial-number", ser, len, 1);
+}
+
+static void prt_oftree_fixup_serial(const char *serial)
+{
+	struct device_node *root = of_get_root_node();
+
+	of_set_property(root, "serial-number", serial, strlen(serial) + 1, 1);
+	of_register_fixup(prt_of_fixup_serial, root);
+}
+
+static int prt_imx6_set_serial(struct prt_imx6_priv *priv,
+			       struct prti6q_rfid_contents *rfid)
+{
+	rfid->serial[9] = 0; /* Failsafe */
+	dev_info(priv->dev, "Serial number: %s\n", rfid->serial);
+	prt_oftree_fixup_serial(rfid->serial);
+
+	return 0;
+}
+
+static int prt_imx6_read_i2c_mac_serial(struct prt_imx6_priv *priv)
+{
+	struct device_d *dev = priv->dev;
+	struct prti6q_rfid_contents rfid;
+	int ret;
+
+	ret = prt_imx6_read_rfid(priv, &rfid, sizeof(rfid));
+	if (ret)
+		return ret;
+
+	if (rfid.cs != prt_imx6_calc_rfid_cs(&rfid, sizeof(rfid))) {
+		dev_err(dev, "RFID: bad checksum!\n");
+		return -EBADMSG;
+	}
+
+	ret = prt_imx6_set_mac(priv, &rfid);
+	if (ret)
+		return ret;
+
+	ret = prt_imx6_set_serial(priv, &rfid);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int prt_imx6_usb_mount(struct prt_imx6_priv *priv, char **usbdisk)
+{
+	struct device_d *dev = priv->dev;
+	const char *path;
+	struct stat s;
+	int ret;
+
+	ret = mkdir("/usb", 0);
+	if (ret) {
+		dev_err(dev, "Cannot mkdir /usb\n");
+		return ret;
+	}
+
+	path = "/dev/disk0.0";
+	ret = stat(path, &s);
+	if (!ret) {
+		ret = mount(path, NULL, "usb", NULL);
+		if (ret)
+			goto exit_usb_mount;
+
+		*usbdisk = strdup("disk0.0");
+		return 0;
+	}
+
+	path = "/dev/disk0";
+	ret = stat(path, &s);
+	if (!ret) {
+		ret = mount(path, NULL, "usb", NULL);
+		if (ret)
+			goto exit_usb_mount;
+
+		*usbdisk = strdup("disk0");
+		return 0;
+	}
+
+exit_usb_mount:
+	dev_err(dev, "Failed to mount %s with error (%i)\n", path, ret);
+	return ret;
+}
+
+#define OTG_PORTSC1 (MX6_OTG_BASE_ADDR+0x184)
+
+static void prt_imx6_check_usb_boot(void *data)
+{
+	struct prt_imx6_priv *priv = data;
+	struct device_d *dev = priv->dev;
+	char *second_word, *bootsrc, *usbdisk;
+	char buf[sizeof("vicut1q recovery")] = {};
+	unsigned int v;
+	ssize_t size;
+	int fd, ret;
+
+	v = readl(OTG_PORTSC1);
+	if ((v & 0x0c00) == 0) /* LS == SE0 ==> nothing connected */
+		return;
+
+	usb_rescan();
+
+	ret = prt_imx6_usb_mount(priv, &usbdisk);
+	if (ret)
+		return;
+
+	fd = open("/usb/boot_target", O_RDONLY);
+	if (fd < 0) {
+		dev_warn(dev, "Can't open /usb/boot_target file, continue with normal boot\n");
+		ret = fd;
+		goto exit_usb_boot;
+	}
+
+	size = read(fd, buf, sizeof(buf) - 1);
+	close(fd);
+	if (size < 0) {
+		ret = size;
+		goto exit_usb_boot;
+	}
+
+	/* Length of "vicut1 usb", the shortest possible target. */
+	if (size < strlen("vicut1 usb")) {
+		dev_err(dev, "Invalid boot target file!\n");
+		ret = -EINVAL;
+		goto exit_usb_boot;
+	}
+
+	second_word = strchr(buf, ' ');
+	if (!second_word) {
+		dev_err(dev, "Cant find boot target in the boot target file!\n");
+		ret = -ENODEV;
+		goto exit_usb_boot;
+	}
+
+	*second_word = 0;
+
+	if (strcmp(buf, priv->name)) {
+		dev_err(dev, "Boot target for a different board! (got: %s expected: %s)\n",
+			buf, priv->name);
+		ret = -EINVAL;
+		goto exit_usb_boot;
+	}
+
+	second_word++;
+	if (strncmp(second_word, "usb", 3) == 0) {
+		bootsrc = usbdisk;
+	} else if (strncmp(second_word, "recovery", 8) == 0) {
+		bootsrc = "recovery";
+	} else {
+		dev_err(dev, "Unknown boot target!\n");
+		ret = -ENODEV;
+		goto exit_usb_boot;
+	}
+
+	dev_info(dev, "detected valid usb boot target file, overwriting boot to: %s\n", bootsrc);
+	ret = setenv("global.boot.default", bootsrc);
+	if (ret)
+		goto exit_usb_boot;
+
+	free(usbdisk);
+	return;
+
+exit_usb_boot:
+	dev_err(dev, "Failed to run usb boot: %s\n", strerror(-ret));
+	free(usbdisk);
+
+	return;
+}
+
+static int prt_imx6_env_init(struct prt_imx6_priv *priv)
+{
+	const struct prt_machine_data *dcfg = priv->dcfg;
+	struct device_d *dev = priv->dev;
+	char *delay, *bootsrc;
+	int ret;
+
+	ret = setenv("global.linux.bootargs.base", "consoleblank=0 vt.color=0x00");
+	if (ret)
+		goto exit_env_init;
+
+	if (dcfg->flags & PRT_IMX6_USB_LONG_DELAY)
+		priv->usb_delay = 4;
+	else
+		priv->usb_delay = 1;
+
+	/* the usb_delay value is used for poller_call_async() */
+	delay = basprintf("%d", priv->usb_delay);
+	ret = setenv("global.autoboot_timeout", delay);
+	if (ret)
+		goto exit_env_init;
+
+	if (dcfg->flags & PRT_IMX6_BOOTCHOOSER)
+		bootsrc = "bootchooser";
+	else
+		bootsrc = "mmc2";
+
+	ret = setenv("global.boot.default", bootsrc);
+	if (ret)
+		goto exit_env_init;
+
+	dev_info(dev, "Board specific env init is done\n");
+	return 0;
+
+exit_env_init:
+	dev_err(dev, "Failed to set env: %i\n", ret);
+
+	return ret;
+}
+
+static int prt_imx6_bbu(struct prt_imx6_priv *priv)
+{
+	const struct prt_machine_data *dcfg = priv->dcfg;
+	u32 emmc_flags = 0;
+	int ret;
+
+	if (dcfg->flags & PRT_IMX6_BOOTSRC_SPI_NOR) {
+		ret = imx6_bbu_internal_spi_i2c_register_handler("SPI", "/dev/m25p0.barebox",
+							 BBU_HANDLER_FLAG_DEFAULT);
+		if (ret)
+			goto exit_bbu;
+	} else {
+		emmc_flags = BBU_HANDLER_FLAG_DEFAULT;
+	}
+
+	ret = imx6_bbu_internal_mmcboot_register_handler("eMMC", "/dev/mmc2",
+						   emmc_flags);
+	if (ret)
+		goto exit_bbu;
+
+	ret = imx6_bbu_internal_mmc_register_handler("SD", "/dev/mmc0", 0);
+	if (ret)
+		goto exit_bbu;
+
+	return 0;
+exit_bbu:
+	dev_err(priv->dev, "Failed to register bbu: %i\n", ret);
+	return ret;
+}
+
+static int prt_imx6_devices_init(void)
+{
+	struct prt_imx6_priv *priv = prt_priv;
+	int ret;
+
+	if (!priv)
+		return 0;
+
+	if (priv->dcfg->init)
+		priv->dcfg->init(priv);
+
+	prt_imx6_bbu(priv);
+
+	prt_imx6_read_i2c_mac_serial(priv);
+
+	prt_imx6_env_init(priv);
+
+	ret = poller_async_register(&priv->poller, "usb-boot");
+	if (ret) {
+		dev_err(priv->dev, "can't setup poller\n");
+		return ret;
+	}
+
+	poller_call_async(&priv->poller, priv->usb_delay * SECOND,
+			  &prt_imx6_check_usb_boot, priv);
+
+	return 0;
+}
+late_initcall(prt_imx6_devices_init);
+
+static int prt_imx6_init_kvg_set_ctrl(struct prt_imx6_priv *priv, bool val)
+{
+	int ret;
+
+	ret = gpio_direction_output(GPIO_ON1_CTRL, val);
+	if (ret)
+		return ret;
+
+	ret = gpio_direction_output(GPIO_ON2_CTRL, val);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int prt_imx6_yaco_set_kvg_power_mode(struct prt_imx6_priv *priv,
+					    const char *serial)
+{
+	static const char command[] = "{\"command\":\"mode\",\"value\":\"kvg\",\"on2\":true}";
+	struct device_d *dev = priv->dev;
+	struct console_device *yccon;
+	int ret;
+
+	yccon = of_console_get_by_alias(serial);
+	if (!yccon) {
+		dev_dbg(dev, "Cant find the %s node, try later\n", serial);
+		return -EPROBE_DEFER;
+	}
+
+	ret = console_set_baudrate(yccon, 115200);
+	if (ret)
+		goto exit_yaco_set_kvg_power_mode;
+
+	yccon->puts(yccon, command, sizeof(command));
+
+	dev_info(dev, "Send YaCO power init sequence to %s\n", serial);
+	return 0;
+
+exit_yaco_set_kvg_power_mode:
+	dev_err(dev, "Failed to set YaCO pw mode: %i", ret);
+
+	return ret;
+}
+
+static int prt_imx6_init_kvg_power(struct prt_imx6_priv *priv,
+				   enum prt_imx6_kvg_pw_mode pw_mode)
+{
+	const char *mode;
+	int ret;
+
+	ret = gpio_request_array(prt_imx6_kvg_gpios,
+				 ARRAY_SIZE(prt_imx6_kvg_gpios));
+	if (ret)
+		goto exit_init_kvg_vicut;
+
+	mdelay(1);
+
+	if (!gpio_get_value(GPIO_DIP1_FB))
+		pw_mode = PW_MODE_KUBOTA;
+
+	switch (pw_mode) {
+	case PW_MODE_KVG_WITH_YACO:
+		mode = "KVG (with YaCO)";
+
+		/* GPIO_ON1_CTRL and GPIO_ON2_CTRL are N.C. on the SoC for
+		 * older revisions */
+
+		/* Inform YaCO of power mode */
+		ret = prt_imx6_yaco_set_kvg_power_mode(priv, "serial0");
+		break;
+	case PW_MODE_KVG_NEW:
+		mode = "KVG (new)";
+
+		ret = prt_imx6_init_kvg_set_ctrl(priv, true);
+		if (ret)
+			goto exit_init_kvg_vicut;
+		break;
+	case PW_MODE_KUBOTA:
+		mode = "Kubota";
+		ret = prt_imx6_init_kvg_set_ctrl(priv, false);
+		if (ret)
+			goto exit_init_kvg_vicut;
+		break;
+	default:
+		ret = -ENODEV;
+		goto exit_init_kvg_vicut;
+	}
+
+	dev_info(priv->dev, "Power mode: %s\n", mode);
+
+	return 0;
+
+exit_init_kvg_vicut:
+	dev_err(priv->dev, "KvG power init failed: %i\n", ret);
+
+	return ret;
+}
+
+static int prt_imx6_init_victgo(struct prt_imx6_priv *priv)
+{
+	int ret = 0;
+
+	/* Bit 1 of HW-REV is pulled low by 2k2, but must be high on some
+	 * revisions
+	 */
+	if (priv->hw_rev & 2) {
+		ret = gpio_direction_output(IMX_GPIO_NR(2, 9), 1);
+		if (ret) {
+			dev_err(priv->dev, "Failed to set gpio up\n");
+			return ret;
+		}
+	}
+
+	return prt_imx6_init_kvg_power(priv, PW_MODE_KVG_NEW);
+}
+
+static int prt_imx6_init_kvg_new(struct prt_imx6_priv *priv)
+{
+	return prt_imx6_init_kvg_power(priv, PW_MODE_KVG_NEW);
+}
+
+static int prt_imx6_init_kvg_yaco(struct prt_imx6_priv *priv)
+{
+	return prt_imx6_init_kvg_power(priv, PW_MODE_KVG_WITH_YACO);
+}
+
+static int prt_imx6_rfid_fixup(struct prt_imx6_priv *priv,
+			       struct device_node *root)
+{
+	const struct prt_machine_data *dcfg = priv->dcfg;
+	struct device_node *node, *i2c_node;
+	char *eeprom_node_name, *alias;
+	int na, ns, len = 0;
+	int ret;
+	u8 *tmp;
+
+	alias = basprintf("i2c%d", dcfg->i2c_adapter);
+	if (!alias) {
+		ret = -ENOMEM;
+		goto exit_error;
+	}
+
+	i2c_node = of_find_node_by_alias(root, alias);
+	if (!i2c_node) {
+		dev_err(priv->dev, "Unsupported i2c adapter\n");
+		ret = -ENODEV;
+		goto free_alias;
+	}
+
+	eeprom_node_name = basprintf("/eeprom@%x", dcfg->i2c_addr);
+	if (!eeprom_node_name) {
+		ret = -ENOMEM;
+		goto free_alias;
+	}
+
+	node = of_create_node(i2c_node, eeprom_node_name);
+	if (!node) {
+		dev_err(priv->dev, "Failed to create node %s\n",
+			eeprom_node_name);
+		ret = -ENOMEM;
+		goto free_eeprom;
+	}
+
+	ret = of_property_write_string(node, "compatible", "atmel,24c256");
+	if (ret)
+		goto free_eeprom;
+
+	na = of_n_addr_cells(node);
+	ns = of_n_size_cells(node);
+	tmp = xzalloc((na + ns) * 4);
+
+	of_write_number(tmp + len, dcfg->i2c_addr, na);
+	len += na * 4;
+	of_write_number(tmp + len, 0, ns);
+	len += ns * 4;
+
+	ret = of_set_property(node, "reg", tmp, len, 1);
+	kfree(tmp);
+	if (ret)
+		goto free_eeprom;
+
+	return 0;
+free_eeprom:
+	kfree(eeprom_node_name);
+free_alias:
+	kfree(alias);
+exit_error:
+	dev_err(priv->dev, "Failed to apply fixup: %i\n", ret);
+	return ret;
+}
+
+static int prt_imx6_of_fixup(struct device_node *root, void *data)
+{
+	struct prt_imx6_priv *priv = data;
+	int ret;
+
+	if (!root) {
+		dev_err(priv->dev, "Unable to find the root node\n");
+		dump_stack();
+		return -ENODEV;
+	}
+
+	ret = prt_imx6_rfid_fixup(priv, root);
+	if (ret)
+		goto exit_of_fixups;
+
+	return 0;
+exit_of_fixups:
+	dev_err(priv->dev, "Failed to apply OF fixups: %i\n", ret);
+	return ret;
+}
+
+static int prt_imx6_get_id(struct prt_imx6_priv *priv)
+{
+	struct gpio gpios_type[] = GPIO_HW_TYPE_ID;
+	struct gpio gpios_rev[] = GPIO_HW_REV_ID;
+	int ret;
+
+	ret = gpio_array_to_id(gpios_type, ARRAY_SIZE(gpios_type), &priv->hw_id);
+	if (ret)
+		goto exit_get_id;
+
+	ret = gpio_array_to_id(gpios_rev, ARRAY_SIZE(gpios_rev), &priv->hw_rev);
+	if (ret)
+		goto exit_get_id;
+
+	return 0;
+exit_get_id:
+	dev_err(priv->dev, "Failed to read gpio ID: %i\n", ret);
+	return ret;
+}
+
+static int prt_imx6_get_dcfg(struct prt_imx6_priv *priv)
+{
+	const struct prt_machine_data *dcfg, *found = NULL;
+	int ret;
+
+	dcfg = of_device_get_match_data(priv->dev);
+	if (!dcfg) {
+		ret = -EINVAL;
+		goto exit_get_dcfg;
+	}
+
+	for (; dcfg->hw_id != UINT_MAX; dcfg++) {
+		if (dcfg->hw_id != priv->hw_id)
+			continue;
+		if (dcfg->hw_rev > priv->hw_rev)
+			break;
+		found = dcfg;
+	}
+
+	if (!found) {
+		ret = -ENODEV;
+		goto exit_get_dcfg;
+	}
+
+	priv->dcfg = found;
+
+	return 0;
+exit_get_dcfg:
+	dev_err(priv->dev, "Failed to get dcfg: %i\n", ret);
+	return ret;
+}
+
+static int prt_imx6_probe(struct device_d *dev)
+{
+	struct prt_imx6_priv *priv;
+	const char *name, *ptr;
+	struct param_d *p;
+	int ret;
+
+	priv = xzalloc(sizeof(*priv));
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	name = of_device_get_match_compatible(priv->dev);
+	ptr = strchr(name, ',');
+	priv->name =  ptr ? ptr + 1 : name;
+
+	pr_info("Detected machine type: %s\n", priv->name);
+
+	ret = prt_imx6_get_id(priv);
+	if (ret)
+		goto free_priv;
+
+	pr_info("  HW type:     %d\n", priv->hw_id);
+	pr_info("  HW revision: %d\n", priv->hw_rev);
+
+	ret = prt_imx6_get_dcfg(priv);
+	if (ret)
+		goto free_priv;
+
+	p = dev_add_param_uint32_ro(dev, "boardrev", &priv->hw_rev, "%u");
+	if (IS_ERR(p)) {
+		ret = PTR_ERR(p);
+		goto free_priv;
+	}
+
+	p = dev_add_param_uint32_ro(dev, "boardid", &priv->hw_id, "%u");
+	if (IS_ERR(p)) {
+		ret = PTR_ERR(p);
+		goto free_priv;
+	}
+
+	ret = prt_imx6_of_fixup(of_get_root_node(), priv);
+	if (ret)
+		goto free_priv;
+
+	ret = of_register_fixup(prt_imx6_of_fixup, priv);
+	if (ret) {
+		dev_err(dev, "Failed to register fixup\n");
+		goto free_priv;
+	}
+
+	prt_priv = priv;
+
+	return 0;
+free_priv:
+	kfree(priv);
+	return ret;
+}
+
+static const struct prt_machine_data prt_imx6_cfg_alti6p[] = {
+	{
+		.hw_id = HW_TYPE_ALTI6P,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_victgo[] = {
+	{
+		.hw_id = HW_TYPE_VICTGO,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_victgo,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_vicut1[] = {
+	{
+		.hw_id = HW_TYPE_VICUT1,
+		.hw_rev = 0,
+		.i2c_addr = 0x50,
+		.i2c_adapter = 1,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_VICUT1,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_yaco,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_VICUT2,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_new,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_vicut1q[] = {
+	{
+		.hw_id = HW_TYPE_VICUT1,
+		.hw_rev = 0,
+		.i2c_addr = 0x50,
+		.i2c_adapter = 1,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_VICUT1,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_yaco,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_VICUT2,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_yaco,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_VICUT2,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_new,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_vicutp[] = {
+	{
+		.hw_id = HW_TYPE_VICUT2,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.init = prt_imx6_init_kvg_new,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_lanmcu[] = {
+	{
+		.hw_id = HW_TYPE_LANMCU,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC | PRT_IMX6_BOOTCHOOSER,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_plybas[] = {
+	{
+		.hw_id = HW_TYPE_PLYBAS,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR | PRT_IMX6_USB_LONG_DELAY,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_plym2m[] = {
+	{
+		.hw_id = HW_TYPE_PLYM2M,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR | PRT_IMX6_USB_LONG_DELAY,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prti6g[] = {
+	{
+		.hw_id = HW_TYPE_PRTI6G,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prti6q[] = {
+	{
+		.hw_id = HW_TYPE_PRTI6Q,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 2,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = HW_TYPE_PRTI6Q,
+		.hw_rev = 1,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prtmvt[] = {
+	{
+		.hw_id = HW_TYPE_PRTMVT,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prtrvt[] = {
+	{
+		.hw_id = HW_TYPE_PRTRVT,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_SPI_NOR,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prtvt7[] = {
+	{
+		.hw_id = HW_TYPE_PRTVT7,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC | PRT_IMX6_BOOTCHOOSER,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prtwd2[] = {
+	{
+		.hw_id = HW_TYPE_PRTWD2,
+		.hw_rev = 0,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct prt_machine_data prt_imx6_cfg_prtwd3[] = {
+	{
+		.hw_id = HW_TYPE_PRTWD2,
+		.hw_rev = 2,
+		.i2c_addr = 0x51,
+		.i2c_adapter = 0,
+		.flags = PRT_IMX6_BOOTSRC_EMMC,
+	}, {
+		.hw_id = UINT_MAX
+	},
+};
+
+static const struct of_device_id prt_imx6_of_match[] = {
+	{ .compatible = "alt,alti6p", .data = &prt_imx6_cfg_alti6p },
+	{ .compatible = "kvg,victgo", .data = &prt_imx6_cfg_victgo },
+	{ .compatible = "kvg,vicut1", .data = &prt_imx6_cfg_vicut1 },
+	{ .compatible = "kvg,vicut1q", .data = &prt_imx6_cfg_vicut1q },
+	{ .compatible = "kvg,vicutp", .data = &prt_imx6_cfg_vicutp },
+	{ .compatible = "lan,lanmcu", .data = &prt_imx6_cfg_lanmcu },
+	{ .compatible = "ply,plybas", .data = &prt_imx6_cfg_plybas },
+	{ .compatible = "ply,plym2m", .data = &prt_imx6_cfg_plym2m },
+	{ .compatible = "prt,prti6g", .data = &prt_imx6_cfg_prti6g },
+	{ .compatible = "prt,prti6q", .data = &prt_imx6_cfg_prti6q },
+	{ .compatible = "prt,prtmvt", .data = &prt_imx6_cfg_prtmvt },
+	{ .compatible = "prt,prtrvt", .data = &prt_imx6_cfg_prtrvt },
+	{ .compatible = "prt,prtvt7", .data = &prt_imx6_cfg_prtvt7 },
+	{ .compatible = "prt,prtwd2", .data = &prt_imx6_cfg_prtwd2 },
+	{ .compatible = "prt,prtwd3", .data = &prt_imx6_cfg_prtwd3 },
+	{ /* sentinel */ },
+};
+
+static struct driver_d prt_imx6_board_driver = {
+	.name = "board-protonic-imx6",
+	.probe = prt_imx6_probe,
+	.of_compatible = DRV_OF_COMPAT(prt_imx6_of_match),
+};
+postcore_platform_driver(prt_imx6_board_driver);