[J-u-boot.git] / board / gardena / smart-gateway-mt7688 / board.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2018 Stefan Roese <[email protected]>
 */

#include <common.h>
#include <env.h>
#include <env_internal.h>
#include <flash.h>
#include <init.h>
#include <led.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(cmd_tbl_t *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
Commit	Line	Data
88dc4099 SR	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright (C) 2018 Stefan Roese <[email protected]>
	4	*/
	5
	6	#include <common.h>
9fb625ce	7	#include <env.h>
f3998fdc	8	#include <env_internal.h>
b79fdc76	9	#include <flash.h>
5255932f	10	#include <init.h>
b1f51fc2	11	#include <led.h>
336d4615	12	#include <malloc.h>
7b3af03f SR	13	#include <net.h>
	14	#include <spi.h>
	15	#include <spi_flash.h>
3db71108	16	#include <u-boot/crc.h>
7b3af03f SR	17	#include <uuid.h>
7b3af03f SR	18	#include <linux/ctype.h>
48f8e159 SR	19	#include <linux/io.h>
	20
	21	#define MT76XX_AGPIO_CFG 0x1000003c
88dc4099	22
7b3af03f SR	23	#define FACTORY_DATA_OFFS 0xc0000
7b3af03f SR	24	#define FACTORY_DATA_SECT_SIZE 0x10000
3eee45d9	25	#if ((CONFIG_ENV_OFFSET_REDUND + CONFIG_ENV_SIZE) > FACTORY_DATA_OFFS)
7b3af03f SR	26	#error "U-Boot image with environment too big (overlapping with factory-data)!"
	27	#endif
	28	#define FACTORY_DATA_USER_OFFS 0x140
	29	#define FACTORY_DATA_SIZE 0x1f0
	30	#define FACTORY_DATA_CRC_LEN (FACTORY_DATA_SIZE - \
	31	FACTORY_DATA_USER_OFFS - sizeof(u32))
	32
	33	#define FACTORY_DATA_MAGIC 0xCAFEBABE
	34
	35	struct factory_data_values {
	36	u8 pad_1[4];
	37	u8 wifi_mac[6]; /* offs: 0x004: binary value */
	38	u8 pad_2[30];
	39	u8 eth_mac[6]; /* offs: 0x028: binary value */
	40	u8 pad_3[FACTORY_DATA_USER_OFFS - 4 - 6 - 30 - 6];
	41	/* User values start here at offset 0x140 */
	42	u32 crc;
	43	u32 magic;
	44	u32 version;
	45	char ipr_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	46	char hqv_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	47	char unielec_id[UUID_STR_LEN]; /* UUID as string w/o ending \0 */
	48	};
	49
88dc4099 SR	50	int board_early_init_f(void)
88dc4099 SR	51	{
48f8e159 SR	52	void __iomem *gpio_mode;
	53
	54	/* Configure digital vs analog GPIOs */
	55	gpio_mode = ioremap_nocache(MT76XX_AGPIO_CFG, 0x100);
	56	iowrite32(0x00fe01ff, gpio_mode);
	57
88dc4099 SR	58	return 0;
88dc4099 SR	59	}
b1f51fc2	60
7b3af03f SR	61	static bool prepare_uuid_var(const char fd_ptr, const char env_var_name,
	62	char errorchar)
	63	{
	64	char str[UUID_STR_LEN + 1] = { 0 }; /* Enough for UUID stuff */
	65	bool env_updated = false;
	66	char *env;
	67	int i;
	68
	69	memcpy(str, fd_ptr, UUID_STR_LEN);
	70
	71	/* Convert non-ascii character to 'X' */
	72	for (i = 0; i < UUID_STR_LEN; i++) {
	73	if (!(isascii(str[i]) && isprint(str[i])))
	74	str[i] = errorchar;
	75	}
	76
	77	env = env_get(env_var_name);
	78	if (strcmp(env, str)) {
	79	env_set(env_var_name, str);
	80	env_updated = true;
	81	}
	82
	83	return env_updated;
	84	}
	85
	86	static void factory_data_env_config(void)
	87	{
	88	struct factory_data_values *fd;
	89	struct spi_flash *sf;
	90	int env_updated = 0;
	91	char str[UUID_STR_LEN + 1]; /* Enough for UUID stuff */
	92	char *env;
	93	u8 *buf;
	94	u32 crc;
	95	int ret;
	96	u8 *ptr;
	97
	98	buf = malloc(FACTORY_DATA_SIZE);
	99	if (!buf) {
	100	printf("F-Data:Unable to allocate buffer\n");
	101	return;
	102	}
	103
	104	/*
	105	* Get values from factory-data area in SPI NOR
	106	*/
	107	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	108	CONFIG_SF_DEFAULT_CS,
	109	CONFIG_SF_DEFAULT_SPEED,
	110	CONFIG_SF_DEFAULT_MODE);
	111	if (!sf) {
	112	printf("F-Data:Unable to access SPI NOR flash\n");
	113	goto err_free;
	114	}
	115
	116	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SIZE,
	117	(void *)buf);
	118	if (ret) {
	119	printf("F-Data:Unable to read factory-data from SPI NOR\n");
	120	goto err_spi_flash;
	121	}
	122
	123	fd = (struct factory_data_values *)buf;
	124
125	if (fd->magic != FACTORY_DATA_MAGIC)
126	printf("F-Data:Magic value not correct\n");
127
128	crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);
129	if (crc != fd->crc)
130	printf("F-Data:CRC not correct\n");
131	else
132	printf("F-Data:factory-data version %x detected\n",
133	fd->version);
134
135	/* Handle wifi_mac env variable */
136	ptr = fd->wifi_mac;
137	sprintf(str, "%pM", ptr);
138	if (!is_valid_ethaddr(ptr))
139	printf("F-Data:Invalid MAC addr: wifi_mac %s\n", str);
140
141	env = env_get("wifiaddr");
142	if (strcmp(env, str)) {
143	env_set("wifiaddr", str);
144	env_updated = 1;
145	}
146
147	/* Handle eth_mac env variable */
148	ptr = fd->eth_mac;
149	sprintf(str, "%pM", ptr);
150	if (!is_valid_ethaddr(ptr))
151	printf("F-Data:Invalid MAC addr: eth_mac %s\n", str);
152
153	env = env_get("ethaddr");
154	if (strcmp(env, str)) {
155	env_set("ethaddr", str);
156	env_updated = 1;
157	}
158
159	/* Handle UUID env variables */
160	env_updated \|= prepare_uuid_var(fd->ipr_id, "linuxmoduleid", 'X');
161	env_updated \|= prepare_uuid_var(fd->hqv_id, "linuxmodulehqvid", '\0');
162	env_updated \|= prepare_uuid_var(fd->unielec_id,
163	"linuxmoduleunielecid", '\0');
164
165	/* Check if the environment was updated and needs to get stored */
166	if (env_updated != 0) {
167	printf("F-Data:Values don't match env values -> saving\n");
168	env_save();
169	} else {
170	debug("F-Data:Values match current env values\n");
171	}
172
173	err_spi_flash:
174	spi_flash_free(sf);
175
176	err_free:
177	free(buf);
178	}
179
b1f51fc2 SR	180	int board_late_init(void)
	181	{
	182	if (IS_ENABLED(CONFIG_LED))
	183	led_default_state();
	184
7b3af03f SR	185	factory_data_env_config();
7b3af03f SR	186
b1f51fc2 SR	187	return 0;
b1f51fc2 SR	188	}
7b3af03f SR	189
	190	static void copy_or_generate_uuid(char fd_ptr, const char env_var_name)
	191	{
	192	char str[UUID_STR_LEN + 1] = { 0 }; /* Enough for UUID stuff */
	193	char *env;
	194
	195	/* Don't use the UUID dest place, as the \0 char won't fit */
	196	env = env_get(env_var_name);
	197	if (env)
	198	strncpy(str, env, UUID_STR_LEN);
	199	else
	200	gen_rand_uuid_str(str, UUID_STR_FORMAT_STD);
	201
	202	memcpy(fd_ptr, str, UUID_STR_LEN);
	203	}
	204
	205	/*
	206	* Helper function to provide some sane factory-data values for testing
	207	* purpose, when these values are not programmed correctly
	208	*/
	209	int do_fd_write(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	210	{
	211	struct factory_data_values *fd;
	212	struct spi_flash *sf;
	213	u8 *buf;
	214	int ret = CMD_RET_FAILURE;
	215
	216	buf = malloc(FACTORY_DATA_SECT_SIZE);
	217	if (!buf) {
	218	printf("F-Data:Unable to allocate buffer\n");
	219	return CMD_RET_FAILURE;
	220	}
	221
	222	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	223	CONFIG_SF_DEFAULT_CS,
	224	CONFIG_SF_DEFAULT_SPEED,
	225	CONFIG_SF_DEFAULT_MODE);
	226	if (!sf) {
	227	printf("F-Data:Unable to access SPI NOR flash\n");
	228	goto err_free;
	229	}
	230
	231	/* Generate the factory-data struct */
	232
	233	/* Fist read complete sector into buffer */
	234	ret = spi_flash_read(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
	235	(void *)buf);
	236	if (ret) {
	237	printf("F-Data:spi_flash_read failed (%d)\n", ret);
	238	goto err_spi_flash;
	239	}
	240
	241	fd = (struct factory_data_values *)buf;
	242	fd->magic = FACTORY_DATA_MAGIC;
	243	fd->version = 0x1;
	244
	245	/* Use existing MAC and UUID values or generate some random ones */
	246	if (!eth_env_get_enetaddr("wifiaddr", fd->wifi_mac)) {
	247	net_random_ethaddr(fd->wifi_mac);
	248	/* to get a different seed value for the MAC address */
	249	mdelay(10);
	250	}
	251
	252	if (!eth_env_get_enetaddr("ethaddr", fd->eth_mac))
253	net_random_ethaddr(fd->eth_mac);
254
255	copy_or_generate_uuid(fd->ipr_id, "linuxmoduleid");
256	copy_or_generate_uuid(fd->hqv_id, "linuxmodulehqvid");
257	copy_or_generate_uuid(fd->unielec_id, "linuxmoduleunielecid");
258
259	printf("New factory-data values:\n");
260	printf("wifiaddr=%pM\n", fd->wifi_mac);
261	printf("ethaddr=%pM\n", fd->eth_mac);
262
263	/*
264	* We don't have the \0 char at the end, so we need to specify the
265	* length in the printf format instead
266	*/
267	printf("linuxmoduleid=%." __stringify(UUID_STR_LEN) "s\n", fd->ipr_id);
268	printf("linuxmodulehqvid=%." __stringify(UUID_STR_LEN) "s\n",
269	fd->hqv_id);
270	printf("linuxmoduleunielecid=%." __stringify(UUID_STR_LEN) "s\n",
271	fd->unielec_id);
272
273	fd->crc = crc32(0, (u8 *)&fd->magic, FACTORY_DATA_CRC_LEN);
274
275	ret = spi_flash_erase(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE);
276	if (ret) {
277	printf("F-Data:spi_flash_erase failed (%d)\n", ret);
278	goto err_spi_flash;
279	}
280
281	ret = spi_flash_write(sf, FACTORY_DATA_OFFS, FACTORY_DATA_SECT_SIZE,
282	buf);
283	if (ret) {
284	printf("F-Data:spi_flash_write failed (%d)\n", ret);
285	goto err_spi_flash;
286	}
287
288	printf("F-Data:factory-data values written to SPI NOR flash\n");
289
290	err_spi_flash:
291	spi_flash_free(sf);
292
293	err_free:
294	free(buf);
295
296	return ret;
297	}
298
757cbbe9	299	#ifndef CONFIG_SPL_BUILD
7b3af03f SR	300	U_BOOT_CMD(
	301	fd_write, 1, 0, do_fd_write,
	302	"Write test factory-data values to SPI NOR",
	303	"\n"
	304	);
757cbbe9	305	#endif