[thirdparty/u-boot.git] / board / ti / j721e / evm.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Board specific initialization for J721E EVM
 *
 * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
 *	Lokesh Vutla <lokeshvutla@ti.com>
 *
 */

#include <common.h>
#include <env.h>
#include <fdt_support.h>
#include <image.h>
#include <init.h>
#include <net.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/hardware.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <spl.h>
#include <asm/arch/sys_proto.h>
#include <dm.h>
#include <dm/uclass-internal.h>

#include "../common/board_detect.h"

#define board_is_j721e_som()	(board_ti_k3_is("J721EX-PM1-SOM") || \
				 board_ti_k3_is("J721EX-PM2-SOM"))

/* Max number of MAC addresses that are parsed/processed per daughter card */
#define DAUGHTER_CARD_NO_OF_MAC_ADDR	8

DECLARE_GLOBAL_DATA_PTR;

int board_init(void)
{
	return 0;
}

int dram_init(void)
{
#ifdef CONFIG_PHYS_64BIT
	gd->ram_size = 0x100000000;
#else
	gd->ram_size = 0x80000000;
#endif

	return 0;
}

ulong board_get_usable_ram_top(ulong total_size)
{
#ifdef CONFIG_PHYS_64BIT
	/* Limit RAM used by U-Boot to the DDR low region */
	if (gd->ram_top > 0x100000000)
		return 0x100000000;
#endif

	return gd->ram_top;
}

int dram_init_banksize(void)
{
	/* Bank 0 declares the memory available in the DDR low region */
	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
	gd->bd->bi_dram[0].size = 0x80000000;
	gd->ram_size = 0x80000000;

#ifdef CONFIG_PHYS_64BIT
	/* Bank 1 declares the memory available in the DDR high region */
	gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
	gd->bd->bi_dram[1].size = 0x80000000;
	gd->ram_size = 0x100000000;
#endif

	return 0;
}

#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
	if (!strcmp(name, "k3-j721e-common-proc-board"))
		return 0;

	return -1;
}
#endif

#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
	int ret;

	ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000", "sram@70000000");
	if (ret)
		printf("%s: fixing up msmc ram failed %d\n", __func__, ret);

	return ret;
}
#endif

int do_board_detect(void)
{
	int ret;

	ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
					 CONFIG_EEPROM_CHIP_ADDRESS);
	if (ret)
		pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
		       CONFIG_EEPROM_CHIP_ADDRESS, ret);

	return ret;
}

int checkboard(void)
{
	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;

	if (do_board_detect())
		/* EEPROM not populated */
		printf("Board: %s rev %s\n", "J721EX-PM1-SOM", "E2");
	else
		printf("Board: %s rev %s\n", ep->name, ep->version);

	return 0;
}

static void setup_board_eeprom_env(void)
{
	char *name = "j721e";

	if (do_board_detect())
		goto invalid_eeprom;

	if (board_is_j721e_som())
		name = "j721e";
	else
		printf("Unidentified board claims %s in eeprom header\n",
		       board_ti_get_name());

invalid_eeprom:
	set_board_info_env_am6(name);
}

static void setup_serial(void)
{
	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
	unsigned long board_serial;
	char *endp;
	char serial_string[17] = { 0 };

	if (env_get("serial#"))
		return;

	board_serial = simple_strtoul(ep->serial, &endp, 16);
	if (*endp != '\0') {
		pr_err("Error: Can't set serial# to %s\n", ep->serial);
		return;
	}

	snprintf(serial_string, sizeof(serial_string), "%016lx", board_serial);
	env_set("serial#", serial_string);
}

/*
 * Declaration of daughtercards to probe. Note that when adding more
 * cards they should be grouped by the 'i2c_addr' field to allow for a
 * more efficient probing process.
 */
static const struct {
	u8 i2c_addr;		/* I2C address of card EEPROM */
	char *card_name;	/* EEPROM-programmed card name */
	char *dtbo_name;	/* Device tree overlay to apply */
	u8 eth_offset;		/* ethXaddr MAC address index offset */
} ext_cards[] = {
	{
		0x51,
		"J7X-BASE-CPB",
		"",		/* No dtbo for this board */
		0,
	},
	{
		0x52,
		"J7X-INFOTAN-EXP",
		"",		/* No dtbo for this board */
		0,
	},
	{
		0x52,
		"J7X-GESI-EXP",
		"",		/* No dtbo for this board */
		5,		/* Start populating from eth5addr */
	},
	{
		0x54,
		"J7X-VSC8514-ETH",
		"",		/* No dtbo for this board */
		1,		/* Start populating from eth1addr */
	},
};

static bool daughter_card_detect_flags[ARRAY_SIZE(ext_cards)];

const char *board_fit_get_additionnal_images(int index, const char *type)
{
	int i, j;

	if (strcmp(type, FIT_FDT_PROP))
		return NULL;

	j = 0;
	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
		if (daughter_card_detect_flags[i]) {
			if (j == index) {
				/*
				 * Return dtbo name only if populated,
				 * otherwise stop parsing here.
				 */
				if (strlen(ext_cards[i].dtbo_name))
					return ext_cards[i].dtbo_name;
				else
					return NULL;
			};

			j++;
		}
	}

	return NULL;
}

static int probe_daughtercards(void)
{
	char mac_addr[DAUGHTER_CARD_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
	bool eeprom_read_success;
	struct ti_am6_eeprom ep;
	u8 previous_i2c_addr;
	u8 mac_addr_cnt;
	int i;
	int ret;

	/* Mark previous I2C address variable as not populated */
	previous_i2c_addr = 0xff;

	/* No EEPROM data was read yet */
	eeprom_read_success = false;

	/* Iterate through list of daughtercards */
	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
		/* Obtain card-specific I2C address */
		u8 i2c_addr = ext_cards[i].i2c_addr;

		/* Read card EEPROM if not already read previously */
		if (i2c_addr != previous_i2c_addr) {
			/* Store I2C address so we can avoid reading twice */
			previous_i2c_addr = i2c_addr;

			/* Get and parse the daughter card EEPROM record */
			ret = ti_i2c_eeprom_am6_get(CONFIG_EEPROM_BUS_ADDRESS,
						    i2c_addr,
						    &ep,
						    (char **)mac_addr,
						    DAUGHTER_CARD_NO_OF_MAC_ADDR,
						    &mac_addr_cnt);
			if (ret) {
				debug("%s: No daughtercard EEPROM at 0x%02x found %d\n",
				      __func__, i2c_addr, ret);
				eeprom_read_success = false;
				/* Skip to the next daughtercard to probe */
				continue;
			}

			/* EEPROM read successful, okay to further process. */
			eeprom_read_success = true;
		}

		/* Only continue processing if EEPROM data was read */
		if (!eeprom_read_success)
			continue;

		/* Only process the parsed data if we found a match */
		if (strncmp(ep.name, ext_cards[i].card_name, sizeof(ep.name)))
			continue;

		printf("Detected: %s rev %s\n", ep.name, ep.version);
		daughter_card_detect_flags[i] = true;

#ifndef CONFIG_SPL_BUILD
		int j;
		/*
		 * Populate any MAC addresses from daughtercard into the U-Boot
		 * environment, starting with a card-specific offset so we can
		 * have multiple ext_cards contribute to the MAC pool in a well-
		 * defined manner.
		 */
		for (j = 0; j < mac_addr_cnt; j++) {
			if (!is_valid_ethaddr((u8 *)mac_addr[j]))
				continue;

			eth_env_set_enetaddr_by_index("eth",
						      ext_cards[i].eth_offset + j,
						      (uchar *)mac_addr[j]);
		}
#endif
	}
#ifndef CONFIG_SPL_BUILD
	char name_overlays[1024] = { 0 };

	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
		if (!daughter_card_detect_flags[i])
			continue;

		/* Skip if no overlays are to be added */
		if (!strlen(ext_cards[i].dtbo_name))
			continue;

		/*
		 * Make sure we are not running out of buffer space by checking
		 * if we can fit the new overlay, a trailing space to be used
		 * as a separator, plus the terminating zero.
		 */
		if (strlen(name_overlays) + strlen(ext_cards[i].dtbo_name) + 2 >
		    sizeof(name_overlays))
			return -ENOMEM;

		/* Append to our list of overlays */
		strcat(name_overlays, ext_cards[i].dtbo_name);
		strcat(name_overlays, " ");
	}

	/* Apply device tree overlay(s) to the U-Boot environment, if any */
	if (strlen(name_overlays))
		return env_set("name_overlays", name_overlays);
#endif

	return 0;
}

int board_late_init(void)
{
	setup_board_eeprom_env();
	setup_serial();

	/* Check for and probe any plugged-in daughtercards */
	probe_daughtercards();

	return 0;
}

void spl_board_init(void)
{
#if defined(CONFIG_ESM_K3) || defined(CONFIG_ESM_PMIC)
	struct udevice *dev;
	int ret;
#endif

	probe_daughtercards();

#ifdef CONFIG_ESM_K3
	if (board_ti_k3_is("J721EX-PM2-SOM")) {
		ret = uclass_get_device_by_driver(UCLASS_MISC,
						  DM_GET_DRIVER(k3_esm), &dev);
		if (ret)
			printf("ESM init failed: %d\n", ret);
	}
#endif

#ifdef CONFIG_ESM_PMIC
	if (board_ti_k3_is("J721EX-PM2-SOM")) {
		ret = uclass_get_device_by_driver(UCLASS_MISC,
						  DM_GET_DRIVER(pmic_esm),
						  &dev);
		if (ret)
			printf("ESM PMIC init failed: %d\n", ret);
	}
#endif
}
Commit	Line	Data
f8185032 LV	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Board specific initialization for J721E EVM
	4	*
	5	* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
	6	* Lokesh Vutla <lokeshvutla@ti.com>
	7	*
	8	*/
	9
	10	#include <common.h>
09140113	11	#include <env.h>
4d72caa5 SG	12	#include <fdt_support.h>
4d72caa5 SG	13	#include <image.h>
67c4e9f8	14	#include <init.h>
90526e9f	15	#include <net.h>
643eb6ea AD	16	#include <asm/arch/sys_proto.h>
	17	#include <asm/arch/hardware.h>
	18	#include <asm/gpio.h>
f8185032 LV	19	#include <asm/io.h>
f8185032 LV	20	#include <spl.h>
d146af5b	21	#include <asm/arch/sys_proto.h>
fa281f64 TK	22	#include <dm.h>
fa281f64 TK	23	#include <dm/uclass-internal.h>
f8185032	24
643eb6ea AD	25	#include "../common/board_detect.h"
	26
	27	#define board_is_j721e_som() (board_ti_k3_is("J721EX-PM1-SOM") \|\| \
	28	board_ti_k3_is("J721EX-PM2-SOM"))
	29
	30	/* Max number of MAC addresses that are parsed/processed per daughter card */
	31	#define DAUGHTER_CARD_NO_OF_MAC_ADDR 8
	32
f8185032 LV	33	DECLARE_GLOBAL_DATA_PTR;
	34
	35	int board_init(void)
	36	{
	37	return 0;
	38	}
	39
	40	int dram_init(void)
	41	{
	42	#ifdef CONFIG_PHYS_64BIT
	43	gd->ram_size = 0x100000000;
	44	#else
	45	gd->ram_size = 0x80000000;
	46	#endif
	47
	48	return 0;
	49	}
	50
	51	ulong board_get_usable_ram_top(ulong total_size)
	52	{
	53	#ifdef CONFIG_PHYS_64BIT
	54	/* Limit RAM used by U-Boot to the DDR low region */
	55	if (gd->ram_top > 0x100000000)
	56	return 0x100000000;
	57	#endif
	58
	59	return gd->ram_top;
	60	}
	61
	62	int dram_init_banksize(void)
	63	{
	64	/* Bank 0 declares the memory available in the DDR low region */
	65	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
	66	gd->bd->bi_dram[0].size = 0x80000000;
	67	gd->ram_size = 0x80000000;
	68
	69	#ifdef CONFIG_PHYS_64BIT
	70	/* Bank 1 declares the memory available in the DDR high region */
	71	gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
	72	gd->bd->bi_dram[1].size = 0x80000000;
	73	gd->ram_size = 0x100000000;
	74	#endif
	75
	76	return 0;
	77	}
	78
	79	#ifdef CONFIG_SPL_LOAD_FIT
	80	int board_fit_config_name_match(const char *name)
	81	{
	82	if (!strcmp(name, "k3-j721e-common-proc-board"))
	83	return 0;
	84
	85	return -1;
	86	}
	87	#endif
d146af5b SA	88
	89	#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
	90	int ft_board_setup(void blob, bd_t bd)
	91	{
	92	int ret;
	93
	94	ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000", "sram@70000000");
	95	if (ret)
	96	printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
	97
	98	return ret;
	99	}
	100	#endif
643eb6ea AD	101
	102	int do_board_detect(void)
	103	{
	104	int ret;
	105
	106	ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
	107	CONFIG_EEPROM_CHIP_ADDRESS);
	108	if (ret)
	109	pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
	110	CONFIG_EEPROM_CHIP_ADDRESS, ret);
	111
	112	return ret;
	113	}
	114
c7068aba LV	115	int checkboard(void)
	116	{
	117	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
	118
	119	if (do_board_detect())
	120	/* EEPROM not populated */
	121	printf("Board: %s rev %s\n", "J721EX-PM1-SOM", "E2");
	122	else
	123	printf("Board: %s rev %s\n", ep->name, ep->version);
	124
	125	return 0;
	126	}
	127
643eb6ea AD	128	static void setup_board_eeprom_env(void)
	129	{
	130	char *name = "j721e";
	131
	132	if (do_board_detect())
	133	goto invalid_eeprom;
	134
	135	if (board_is_j721e_som())
	136	name = "j721e";
	137	else
	138	printf("Unidentified board claims %s in eeprom header\n",
	139	board_ti_get_name());
	140
	141	invalid_eeprom:
	142	set_board_info_env_am6(name);
	143	}
	144
	145	static void setup_serial(void)
	146	{
	147	struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
	148	unsigned long board_serial;
	149	char *endp;
	150	char serial_string[17] = { 0 };
	151
	152	if (env_get("serial#"))
	153	return;
	154
	155	board_serial = simple_strtoul(ep->serial, &endp, 16);
	156	if (*endp != '\0') {
	157	pr_err("Error: Can't set serial# to %s\n", ep->serial);
	158	return;
	159	}
	160
	161	snprintf(serial_string, sizeof(serial_string), "%016lx", board_serial);
	162	env_set("serial#", serial_string);
	163	}
	164
	165	/*
	166	* Declaration of daughtercards to probe. Note that when adding more
	167	* cards they should be grouped by the 'i2c_addr' field to allow for a
	168	* more efficient probing process.
	169	*/
	170	static const struct {
	171	u8 i2c_addr; /* I2C address of card EEPROM */
	172	char card_name; / EEPROM-programmed card name */
	173	char dtbo_name; / Device tree overlay to apply */
	174	u8 eth_offset; /* ethXaddr MAC address index offset */
	175	} ext_cards[] = {
	176	{
	177	0x51,
	178	"J7X-BASE-CPB",
	179	"", /* No dtbo for this board */
	180	0,
	181	},
	182	{
	183	0x52,
	184	"J7X-INFOTAN-EXP",
	185	"", /* No dtbo for this board */
	186	0,
	187	},
	188	{
	189	0x52,
	190	"J7X-GESI-EXP",
	191	"", /* No dtbo for this board */
192	5, /* Start populating from eth5addr */
193	},
194	{
195	0x54,
196	"J7X-VSC8514-ETH",
197	"", /* No dtbo for this board */
198	1, /* Start populating from eth1addr */
199	},
200	};
201
202	static bool daughter_card_detect_flags[ARRAY_SIZE(ext_cards)];
203
204	const char board_fit_get_additionnal_images(int index, const char type)
205	{
206	int i, j;
207
208	if (strcmp(type, FIT_FDT_PROP))
209	return NULL;
210
211	j = 0;
212	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
213	if (daughter_card_detect_flags[i]) {
214	if (j == index) {
215	/*
216	* Return dtbo name only if populated,
217	* otherwise stop parsing here.
218	*/
219	if (strlen(ext_cards[i].dtbo_name))
220	return ext_cards[i].dtbo_name;
221	else
222	return NULL;
223	};
224
225	j++;
226	}
227	}
228
229	return NULL;
230	}
231
232	static int probe_daughtercards(void)
233	{
234	char mac_addr[DAUGHTER_CARD_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
235	bool eeprom_read_success;
236	struct ti_am6_eeprom ep;
237	u8 previous_i2c_addr;
238	u8 mac_addr_cnt;
239	int i;
240	int ret;
241
242	/* Mark previous I2C address variable as not populated */
243	previous_i2c_addr = 0xff;
244
245	/* No EEPROM data was read yet */
246	eeprom_read_success = false;
247
248	/* Iterate through list of daughtercards */
249	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
250	/* Obtain card-specific I2C address */
251	u8 i2c_addr = ext_cards[i].i2c_addr;
252
253	/* Read card EEPROM if not already read previously */
254	if (i2c_addr != previous_i2c_addr) {
255	/* Store I2C address so we can avoid reading twice */
256	previous_i2c_addr = i2c_addr;
257
258	/* Get and parse the daughter card EEPROM record */
259	ret = ti_i2c_eeprom_am6_get(CONFIG_EEPROM_BUS_ADDRESS,
260	i2c_addr,
261	&ep,
262	(char **)mac_addr,
263	DAUGHTER_CARD_NO_OF_MAC_ADDR,
264	&mac_addr_cnt);
265	if (ret) {
266	debug("%s: No daughtercard EEPROM at 0x%02x found %d\n",
267	__func__, i2c_addr, ret);
268	eeprom_read_success = false;
269	/* Skip to the next daughtercard to probe */
270	continue;
271	}
272
273	/* EEPROM read successful, okay to further process. */
274	eeprom_read_success = true;
275	}
276
277	/* Only continue processing if EEPROM data was read */
278	if (!eeprom_read_success)
279	continue;
280
281	/* Only process the parsed data if we found a match */
282	if (strncmp(ep.name, ext_cards[i].card_name, sizeof(ep.name)))
283	continue;
284
285	printf("Detected: %s rev %s\n", ep.name, ep.version);
286	daughter_card_detect_flags[i] = true;
287
288	#ifndef CONFIG_SPL_BUILD
289	int j;
290	/*
291	* Populate any MAC addresses from daughtercard into the U-Boot
292	* environment, starting with a card-specific offset so we can
293	* have multiple ext_cards contribute to the MAC pool in a well-
294	* defined manner.
295	*/
296	for (j = 0; j < mac_addr_cnt; j++) {
297	if (!is_valid_ethaddr((u8 *)mac_addr[j]))
298	continue;
299
300	eth_env_set_enetaddr_by_index("eth",
301	ext_cards[i].eth_offset + j,
302	(uchar *)mac_addr[j]);
303	}
304	#endif
305	}
306	#ifndef CONFIG_SPL_BUILD
307	char name_overlays[1024] = { 0 };
308
309	for (i = 0; i < ARRAY_SIZE(ext_cards); i++) {
310	if (!daughter_card_detect_flags[i])
311	continue;
312
313	/* Skip if no overlays are to be added */
314	if (!strlen(ext_cards[i].dtbo_name))
315	continue;
316
317	/*
318	* Make sure we are not running out of buffer space by checking
319	* if we can fit the new overlay, a trailing space to be used
320	* as a separator, plus the terminating zero.
321	*/
322	if (strlen(name_overlays) + strlen(ext_cards[i].dtbo_name) + 2 >
323	sizeof(name_overlays))
324	return -ENOMEM;
325
326	/* Append to our list of overlays */
327	strcat(name_overlays, ext_cards[i].dtbo_name);
328	strcat(name_overlays, " ");
329	}
330
331	/* Apply device tree overlay(s) to the U-Boot environment, if any */
332	if (strlen(name_overlays))
333	return env_set("name_overlays", name_overlays);
334	#endif
335
336	return 0;
337	}
338
339	int board_late_init(void)
340	{
341	setup_board_eeprom_env();
342	setup_serial();
343
344	/* Check for and probe any plugged-in daughtercards */
345	probe_daughtercards();
346
347	return 0;
348	}
349
350	void spl_board_init(void)
351	{
fa281f64 TK	352	#if defined(CONFIG_ESM_K3) \|\| defined(CONFIG_ESM_PMIC)
	353	struct udevice *dev;
	354	int ret;
	355	#endif
	356
643eb6ea	357	probe_daughtercards();
fa281f64 TK	358
	359	#ifdef CONFIG_ESM_K3
	360	if (board_ti_k3_is("J721EX-PM2-SOM")) {
	361	ret = uclass_get_device_by_driver(UCLASS_MISC,
	362	DM_GET_DRIVER(k3_esm), &dev);
	363	if (ret)
	364	printf("ESM init failed: %d\n", ret);
	365	}
	366	#endif
	367
	368	#ifdef CONFIG_ESM_PMIC
	369	if (board_ti_k3_is("J721EX-PM2-SOM")) {
	370	ret = uclass_get_device_by_driver(UCLASS_MISC,
	371	DM_GET_DRIVER(pmic_esm),
	372	&dev);
	373	if (ret)
	374	printf("ESM PMIC init failed: %d\n", ret);
	375	}
	376	#endif
643eb6ea	377	}