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- // 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 <generic-phy.h>
- #include <image.h>
- #include <init.h>
- #include <log.h>
- #include <net.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/arch/hardware.h>
- #include <asm/global_data.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"))
- #define board_is_j7200_som() (board_ti_k3_is("J7200X-PM1-SOM") || \
- board_ti_k3_is("J7200X-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 CONFIG_IS_ENABLED(DM_GPIO) && CONFIG_IS_ENABLED(OF_LIBFDT)
- /* Returns 1, if onboard mux is set to hyperflash */
- static void __maybe_unused detect_enable_hyperflash(void *blob)
- {
- struct gpio_desc desc = {0};
- if (dm_gpio_lookup_name("6", &desc))
- return;
- if (dm_gpio_request(&desc, "6"))
- return;
- if (dm_gpio_set_dir_flags(&desc, GPIOD_IS_IN))
- return;
- if (dm_gpio_get_value(&desc)) {
- int offset;
- do_fixup_by_compat(blob, "ti,am654-hbmc", "status",
- "okay", sizeof("okay"), 0);
- offset = fdt_node_offset_by_compatible(blob, -1,
- "ti,am654-ospi");
- fdt_setprop(blob, offset, "status", "disabled",
- sizeof("disabled"));
- }
- }
- #endif
- #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_TARGET_J7200_A72_EVM)
- void spl_perform_fixups(struct spl_image_info *spl_image)
- {
- detect_enable_hyperflash(spl_image->fdt_addr);
- }
- #endif
- #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
- int ft_board_setup(void *blob, struct bd_info *bd)
- {
- int ret;
- ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000");
- if (ret < 0)
- ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000",
- "sram@70000000");
- if (ret)
- printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
- detect_enable_hyperflash(blob);
- return ret;
- }
- #endif
- #ifdef CONFIG_TI_I2C_BOARD_DETECT
- 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 if (board_is_j7200_som())
- name = "j7200";
- 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;
- }
- #endif
- void configure_serdes_torrent(void)
- {
- struct udevice *dev;
- struct phy serdes;
- int ret;
- if (!IS_ENABLED(CONFIG_PHY_CADENCE_TORRENT))
- return;
- ret = uclass_get_device_by_driver(UCLASS_PHY,
- DM_DRIVER_GET(torrent_phy_provider),
- &dev);
- if (ret)
- printf("Torrent init failed:%d\n", ret);
- serdes.dev = dev;
- serdes.id = 0;
- ret = generic_phy_init(&serdes);
- if (ret)
- printf("phy_init failed!!\n");
- ret = generic_phy_power_on(&serdes);
- if (ret)
- printf("phy_power_on failed !!\n");
- }
- int board_late_init(void)
- {
- if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
- setup_board_eeprom_env();
- setup_serial();
- /* Check for and probe any plugged-in daughtercards */
- probe_daughtercards();
- }
- if (board_is_j7200_som())
- configure_serdes_torrent();
- return 0;
- }
- void spl_board_init(void)
- {
- #if defined(CONFIG_ESM_K3) || defined(CONFIG_ESM_PMIC)
- struct udevice *dev;
- int ret;
- #endif
- if ((IS_ENABLED(CONFIG_TARGET_J721E_A72_EVM) ||
- IS_ENABLED(CONFIG_TARGET_J7200_A72_EVM)) &&
- IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
- probe_daughtercards();
- #ifdef CONFIG_ESM_K3
- if (board_ti_k3_is("J721EX-PM2-SOM")) {
- ret = uclass_get_device_by_driver(UCLASS_MISC,
- DM_DRIVER_GET(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_DRIVER_GET(pmic_esm),
- &dev);
- if (ret)
- printf("ESM PMIC init failed: %d\n", ret);
- }
- #endif
- }
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