board/gardena/smart-gateway-mt7688/board.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2018 Stefan Roese <sr@denx.de>
  */

 #include <common.h>
 #include <command.h>
 #include <env.h>
 #include <env_internal.h>
 #include <flash.h>
 #include <init.h>
 #include <led.h>
 #include <log.h>
 #include <malloc.h>
 #include <net.h>
 #include <spi.h>
 #include <spi_flash.h>
 #include <u-boot/crc.h>
 #include <uuid.h>
 #include <linux/ctype.h>
 #include <linux/io.h>

 #define MT76XX_AGPIO_CFG	0x1000003c

 #define FACTORY_DATA_OFFS	0xc0000
 #define FACTORY_DATA_SECT_SIZE	0x10000
 #if ((CONFIG_ENV_OFFSET_REDUND + CONFIG_ENV_SIZE) > FACTORY_DATA_OFFS)
 #error "U-Boot image with environment too big (overlapping with factory-data)!"
 #endif
 #define FACTORY_DATA_USER_OFFS	0x140
 #define FACTORY_DATA_SIZE	0x1f0
 #define FACTORY_DATA_CRC_LEN	(FACTORY_DATA_SIZE -			\
 				 FACTORY_DATA_USER_OFFS - sizeof(u32))

 #define FACTORY_DATA_MAGIC	0xCAFEBABE

 struct factory_data_values {
 	u8 pad_1[4];
 	u8 wifi_mac[6];		/* offs: 0x004: binary value */
 	u8 pad_2[30];
 	u8 eth_mac[6];		/* offs: 0x028: binary value */
 	u8 pad_3[FACTORY_DATA_USER_OFFS - 4 - 6 - 30 - 6];
 	/* User values start here at offset 0x140 */
 	u32 crc;
 	u32 magic;
 	u32 version;
 	char ipr_id[UUID_STR_LEN];	/* UUID as string w/o ending \0 */
 	char hqv_id[UUID_STR_LEN];	/* UUID as string w/o ending \0 */
 	char unielec_id[UUID_STR_LEN];	/* UUID as string w/o ending \0 */
 };

 int board_early_init_f(void)
 {
 	void __iomem *gpio_mode;

 	/* Configure digital vs analog GPIOs */
 	gpio_mode = ioremap_nocache(MT76XX_AGPIO_CFG, 0x100);
 	iowrite32(0x00fe01ff, gpio_mode);

 	return 0;
 }

 static bool prepare_uuid_var(const char *fd_ptr, const char *env_var_name,
 			     char errorchar)
 {
 	char str[UUID_STR_LEN + 1] = { 0 };	/* Enough for UUID stuff */
 	bool env_updated = false;
 	char *env;
 	int i;

 	memcpy(str, fd_ptr, UUID_STR_LEN);

 	/* Convert non-ascii character to 'X' */
 	for (i = 0; i < UUID_STR_LEN; i++) {
 		if (!(isascii(str[i]) && isprint(str[i])))
 			str[i] = errorchar;
 	}

 	env = env_get(env_var_name);
 	if (strcmp(env, str)) {
 		env_set(env_var_name, str);
 		env_updated = true;
 	}

 	return env_updated;
 }

 static void factory_data_env_config(void)
 {
 	struct factory_data_values *fd;
 	struct spi_flash *sf;
 	int env_updated = 0;
 	char str[UUID_STR_LEN + 1];	/* Enough for UUID stuff */
 	char *env;
 	u8 *buf;
 	u32 crc;
 	int ret;
 	u8 *ptr;

 	buf = malloc(FACTORY_DATA_SIZE);
 	if (!buf) {
 		printf("F-Data:Unable to allocate buffer\n");
 		return;
 	}

 	/*
 	 * Get values from factory-data area in SPI NOR
 	 */
 	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
 			     CONFIG_SF_DEFAULT_CS,
 			     CONFIG_SF_DEFAULT_SPEED,
 			     CONFIG_SF_DEFAULT_MODE);
 	if (!sf) {
 		printf("F-Data:Unable to access SPI NOR flash\n");
 		goto err_free;
 	}

 	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SIZE,
 			     (void *)buf);
 	if (ret) {
 		printf("F-Data:Unable to read factory-data from SPI NOR\n");
 		goto err_spi_flash;
 	}

 	fd = (struct factory_data_values *)buf;

 	if (fd->magic != FACTORY_DATA_MAGIC)
 		printf("F-Data:Magic value not correct\n");

 	crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);
 	if (crc != fd->crc)
 		printf("F-Data:CRC not correct\n");
 	else
 		printf("F-Data:factory-data version %x detected\n",
 		       fd->version);

 	/* Handle wifi_mac env variable */
 	ptr = fd->wifi_mac;
 	sprintf(str, "%pM", ptr);
 	if (!is_valid_ethaddr(ptr))
 		printf("F-Data:Invalid MAC addr: wifi_mac %s\n", str);

 	env = env_get("wifiaddr");
 	if (strcmp(env, str)) {
 		env_set("wifiaddr", str);
 		env_updated = 1;
 	}

 	/* Handle eth_mac env variable */
 	ptr = fd->eth_mac;
 	sprintf(str, "%pM", ptr);
 	if (!is_valid_ethaddr(ptr))
 		printf("F-Data:Invalid MAC addr: eth_mac %s\n", str);

 	env = env_get("ethaddr");
 	if (strcmp(env, str)) {
 		env_set("ethaddr", str);
 		env_updated = 1;
 	}

 	/* Handle UUID env variables */
 	env_updated |= prepare_uuid_var(fd->ipr_id, "linuxmoduleid", 'X');
 	env_updated |= prepare_uuid_var(fd->hqv_id, "linuxmodulehqvid", '\0');
 	env_updated |= prepare_uuid_var(fd->unielec_id,
 					"linuxmoduleunielecid", '\0');

 	/* Check if the environment was updated and needs to get stored */
 	if (env_updated != 0) {
 		printf("F-Data:Values don't match env values -> saving\n");
 		env_save();
 	} else {
 		debug("F-Data:Values match current env values\n");
 	}

 err_spi_flash:
 	spi_flash_free(sf);

 err_free:
 	free(buf);
 }

 int board_late_init(void)
 {
 	if (IS_ENABLED(CONFIG_LED))
 		led_default_state();

 	factory_data_env_config();

 	return 0;
 }

 static void copy_or_generate_uuid(char *fd_ptr, const char *env_var_name)
 {
 	char str[UUID_STR_LEN + 1] = { 0 };	/* Enough for UUID stuff */
 	char *env;

 	/* Don't use the UUID dest place, as the \0 char won't fit */
 	env = env_get(env_var_name);
 	if (env)
 		strncpy(str, env, UUID_STR_LEN);
 	else
 		gen_rand_uuid_str(str, UUID_STR_FORMAT_STD);

 	memcpy(fd_ptr, str, UUID_STR_LEN);
 }

 /*
  * Helper function to provide some sane factory-data values for testing
  * purpose, when these values are not programmed correctly
  */
 int do_fd_write(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct factory_data_values *fd;
 	struct spi_flash *sf;
 	u8 *buf;
 	int ret = CMD_RET_FAILURE;

 	buf = malloc(FACTORY_DATA_SECT_SIZE);
 	if (!buf) {
 		printf("F-Data:Unable to allocate buffer\n");
 		return CMD_RET_FAILURE;
 	}

 	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
 			     CONFIG_SF_DEFAULT_CS,
 			     CONFIG_SF_DEFAULT_SPEED,
 			     CONFIG_SF_DEFAULT_MODE);
 	if (!sf) {
 		printf("F-Data:Unable to access SPI NOR flash\n");
 		goto err_free;
 	}

 	/* Generate the factory-data struct */

 	/* Fist read complete sector into buffer */
 	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
 			     (void *)buf);
 	if (ret) {
 		printf("F-Data:spi_flash_read failed (%d)\n", ret);
 		goto err_spi_flash;
 	}

 	fd = (struct factory_data_values *)buf;
 	fd->magic = FACTORY_DATA_MAGIC;
 	fd->version = 0x1;

 	/* Use existing MAC and UUID values or generate some random ones */
 	if (!eth_env_get_enetaddr("wifiaddr", fd->wifi_mac)) {
 		net_random_ethaddr(fd->wifi_mac);
 		/* to get a different seed value for the MAC address */
 		mdelay(10);
 	}

 	if (!eth_env_get_enetaddr("ethaddr", fd->eth_mac))
 		net_random_ethaddr(fd->eth_mac);

 	copy_or_generate_uuid(fd->ipr_id, "linuxmoduleid");
 	copy_or_generate_uuid(fd->hqv_id, "linuxmodulehqvid");
 	copy_or_generate_uuid(fd->unielec_id, "linuxmoduleunielecid");

 	printf("New factory-data values:\n");
 	printf("wifiaddr=%pM\n", fd->wifi_mac);
 	printf("ethaddr=%pM\n", fd->eth_mac);

 	/*
 	 * We don't have the \0 char at the end, so we need to specify the
 	 * length in the printf format instead
 	 */
 	printf("linuxmoduleid=%." __stringify(UUID_STR_LEN) "s\n", fd->ipr_id);
 	printf("linuxmodulehqvid=%." __stringify(UUID_STR_LEN) "s\n",
 	       fd->hqv_id);
 	printf("linuxmoduleunielecid=%." __stringify(UUID_STR_LEN) "s\n",
 	       fd->unielec_id);

 	fd->crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);

 	ret = spi_flash_erase(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE);
 	if (ret) {
 		printf("F-Data:spi_flash_erase failed (%d)\n", ret);
 		goto err_spi_flash;
 	}

 	ret = spi_flash_write(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
 			      buf);
 	if (ret) {
 		printf("F-Data:spi_flash_write failed (%d)\n", ret);
 		goto err_spi_flash;
 	}

 	printf("F-Data:factory-data values written to SPI NOR flash\n");

 err_spi_flash:
 	spi_flash_free(sf);

 err_free:
 	free(buf);

 	return ret;
 }

 #ifndef CONFIG_SPL_BUILD
 U_BOOT_CMD(
 	fd_write,	1,	0,	do_fd_write,
 	"Write test factory-data values to SPI NOR",
 	"\n"
 );
 #endif
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright (C) 2018 Stefan Roese <sr@denx.de>
	*/

	#include <common.h>
	#include <command.h>
	#include <env.h>
	#include <env_internal.h>
	#include <flash.h>
	#include <init.h>
	#include <led.h>
	#include <log.h>
	#include <malloc.h>
	#include <net.h>
	#include <spi.h>
	#include <spi_flash.h>
	#include <u-boot/crc.h>
	#include <uuid.h>
	#include <linux/ctype.h>
	#include <linux/io.h>

	#define MT76XX_AGPIO_CFG 0x1000003c

	#define FACTORY_DATA_OFFS 0xc0000
	#define FACTORY_DATA_SECT_SIZE 0x10000
	#if ((CONFIG_ENV_OFFSET_REDUND + CONFIG_ENV_SIZE) > FACTORY_DATA_OFFS)
	#error "U-Boot image with environment too big (overlapping with factory-data)!"
	#endif
	#define FACTORY_DATA_USER_OFFS 0x140
	#define FACTORY_DATA_SIZE 0x1f0
	#define FACTORY_DATA_CRC_LEN (FACTORY_DATA_SIZE - \
	FACTORY_DATA_USER_OFFS - sizeof(u32))

	#define FACTORY_DATA_MAGIC 0xCAFEBABE

	struct factory_data_values {
	u8 pad_1[4];
	u8 wifi_mac[6]; /* offs: 0x004: binary value */
	u8 pad_2[30];
	u8 eth_mac[6]; /* offs: 0x028: binary value */
	u8 pad_3[FACTORY_DATA_USER_OFFS - 4 - 6 - 30 - 6];
	/* User values start here at offset 0x140 */
	u32 crc;
	u32 magic;
	u32 version;
	char ipr_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	char hqv_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	char unielec_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	};

	int board_early_init_f(void)
	{
	void __iomem *gpio_mode;

	/* Configure digital vs analog GPIOs */
	gpio_mode = ioremap_nocache(MT76XX_AGPIO_CFG, 0x100);
	iowrite32(0x00fe01ff, gpio_mode);

	return 0;
	}

	static bool prepare_uuid_var(const char fd_ptr, const char env_var_name,
	char errorchar)
	{
	char str[UUID_STR_LEN + 1] = { 0 }; /* Enough for UUID stuff */
	bool env_updated = false;
	char *env;
	int i;

	memcpy(str, fd_ptr, UUID_STR_LEN);

	/* Convert non-ascii character to 'X' */
	for (i = 0; i < UUID_STR_LEN; i++) {
	if (!(isascii(str[i]) && isprint(str[i])))
	str[i] = errorchar;
	}

	env = env_get(env_var_name);
	if (strcmp(env, str)) {
	env_set(env_var_name, str);
	env_updated = true;
	}

	return env_updated;
	}

	static void factory_data_env_config(void)
	{
	struct factory_data_values *fd;
	struct spi_flash *sf;
	int env_updated = 0;
	char str[UUID_STR_LEN + 1]; /* Enough for UUID stuff */
	char *env;
	u8 *buf;
	u32 crc;
	int ret;
	u8 *ptr;

	buf = malloc(FACTORY_DATA_SIZE);
	if (!buf) {
	printf("F-Data:Unable to allocate buffer\n");
	return;
	}

	/*
	* Get values from factory-data area in SPI NOR
	*/
	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	CONFIG_SF_DEFAULT_CS,
	CONFIG_SF_DEFAULT_SPEED,
	CONFIG_SF_DEFAULT_MODE);
	if (!sf) {
	printf("F-Data:Unable to access SPI NOR flash\n");
	goto err_free;
	}

	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SIZE,
	(void *)buf);
	if (ret) {
	printf("F-Data:Unable to read factory-data from SPI NOR\n");
	goto err_spi_flash;
	}

	fd = (struct factory_data_values *)buf;

	if (fd->magic != FACTORY_DATA_MAGIC)
	printf("F-Data:Magic value not correct\n");

	crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);
	if (crc != fd->crc)
	printf("F-Data:CRC not correct\n");
	else
	printf("F-Data:factory-data version %x detected\n",
	fd->version);

	/* Handle wifi_mac env variable */
	ptr = fd->wifi_mac;
	sprintf(str, "%pM", ptr);
	if (!is_valid_ethaddr(ptr))
	printf("F-Data:Invalid MAC addr: wifi_mac %s\n", str);

	env = env_get("wifiaddr");
	if (strcmp(env, str)) {
	env_set("wifiaddr", str);
	env_updated = 1;
	}

	/* Handle eth_mac env variable */
	ptr = fd->eth_mac;
	sprintf(str, "%pM", ptr);
	if (!is_valid_ethaddr(ptr))
	printf("F-Data:Invalid MAC addr: eth_mac %s\n", str);

	env = env_get("ethaddr");
	if (strcmp(env, str)) {
	env_set("ethaddr", str);
	env_updated = 1;
	}

	/* Handle UUID env variables */
	env_updated \|= prepare_uuid_var(fd->ipr_id, "linuxmoduleid", 'X');
	env_updated \|= prepare_uuid_var(fd->hqv_id, "linuxmodulehqvid", '\0');
	env_updated \|= prepare_uuid_var(fd->unielec_id,
	"linuxmoduleunielecid", '\0');

	/* Check if the environment was updated and needs to get stored */
	if (env_updated != 0) {
	printf("F-Data:Values don't match env values -> saving\n");
	env_save();
	} else {
	debug("F-Data:Values match current env values\n");
	}

	err_spi_flash:
	spi_flash_free(sf);

	err_free:
	free(buf);
	}

	int board_late_init(void)
	{
	if (IS_ENABLED(CONFIG_LED))
	led_default_state();

	factory_data_env_config();

	return 0;
	}

	static void copy_or_generate_uuid(char fd_ptr, const char env_var_name)
	{
	char str[UUID_STR_LEN + 1] = { 0 }; /* Enough for UUID stuff */
	char *env;

	/* Don't use the UUID dest place, as the \0 char won't fit */
	env = env_get(env_var_name);
	if (env)
	strncpy(str, env, UUID_STR_LEN);
	else
	gen_rand_uuid_str(str, UUID_STR_FORMAT_STD);

	memcpy(fd_ptr, str, UUID_STR_LEN);
	}

	/*
	* Helper function to provide some sane factory-data values for testing
	* purpose, when these values are not programmed correctly
	*/
	int do_fd_write(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
	{
	struct factory_data_values *fd;
	struct spi_flash *sf;
	u8 *buf;
	int ret = CMD_RET_FAILURE;

	buf = malloc(FACTORY_DATA_SECT_SIZE);
	if (!buf) {
	printf("F-Data:Unable to allocate buffer\n");
	return CMD_RET_FAILURE;
	}

	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	CONFIG_SF_DEFAULT_CS,
	CONFIG_SF_DEFAULT_SPEED,
	CONFIG_SF_DEFAULT_MODE);
	if (!sf) {
	printf("F-Data:Unable to access SPI NOR flash\n");
	goto err_free;
	}

	/* Generate the factory-data struct */

	/* Fist read complete sector into buffer */
	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
	(void *)buf);
	if (ret) {
	printf("F-Data:spi_flash_read failed (%d)\n", ret);
	goto err_spi_flash;
	}

	fd = (struct factory_data_values *)buf;
	fd->magic = FACTORY_DATA_MAGIC;
	fd->version = 0x1;

	/* Use existing MAC and UUID values or generate some random ones */
	if (!eth_env_get_enetaddr("wifiaddr", fd->wifi_mac)) {
	net_random_ethaddr(fd->wifi_mac);
	/* to get a different seed value for the MAC address */
	mdelay(10);
	}

	if (!eth_env_get_enetaddr("ethaddr", fd->eth_mac))
	net_random_ethaddr(fd->eth_mac);

	copy_or_generate_uuid(fd->ipr_id, "linuxmoduleid");
	copy_or_generate_uuid(fd->hqv_id, "linuxmodulehqvid");
	copy_or_generate_uuid(fd->unielec_id, "linuxmoduleunielecid");

	printf("New factory-data values:\n");
	printf("wifiaddr=%pM\n", fd->wifi_mac);
	printf("ethaddr=%pM\n", fd->eth_mac);

	/*
	* We don't have the \0 char at the end, so we need to specify the
	* length in the printf format instead
	*/
	printf("linuxmoduleid=%." __stringify(UUID_STR_LEN) "s\n", fd->ipr_id);
	printf("linuxmodulehqvid=%." __stringify(UUID_STR_LEN) "s\n",
	fd->hqv_id);
	printf("linuxmoduleunielecid=%." __stringify(UUID_STR_LEN) "s\n",
	fd->unielec_id);

	fd->crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);

	ret = spi_flash_erase(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE);
	if (ret) {
	printf("F-Data:spi_flash_erase failed (%d)\n", ret);
	goto err_spi_flash;
	}

	ret = spi_flash_write(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
	buf);
	if (ret) {
	printf("F-Data:spi_flash_write failed (%d)\n", ret);
	goto err_spi_flash;
	}

	printf("F-Data:factory-data values written to SPI NOR flash\n");

	err_spi_flash:
	spi_flash_free(sf);

	err_free:
	free(buf);

	return ret;
	}

	#ifndef CONFIG_SPL_BUILD
	U_BOOT_CMD(
	fd_write, 1, 0, do_fd_write,
	"Write test factory-data values to SPI NOR",
	"\n"
	);
	#endif