board/ti/j721e/evm.c - filogic/uboot - Gitiles

 // 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
 }
	// 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
	}