// SPDX-License-Identifier: GPL-2.0+
/*
 * Library to support early TI EVM EEPROM handling
 *
 * Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
 *      Lokesh Vutla
 *      Steve Kipisz
 */

#include <common.h>
#include <eeprom.h>
#include <log.h>
#include <net.h>
#include <asm/arch/hardware.h>
#include <asm/omap_common.h>
#include <dm/uclass.h>
#include <env.h>
#include <i2c.h>
#include <mmc.h>
#include <errno.h>
#include <malloc.h>

#include "board_detect.h"

#if !CONFIG_IS_ENABLED(DM_I2C)
/**
 * ti_i2c_eeprom_init - Initialize an i2c bus and probe for a device
 * @i2c_bus: i2c bus number to initialize
 * @dev_addr: Device address to probe for
 *
 * Return: 0 on success or corresponding error on failure.
 */
static int __maybe_unused ti_i2c_eeprom_init(int i2c_bus, int dev_addr)
{
        int rc;

        if (i2c_bus >= 0) {
                rc = i2c_set_bus_num(i2c_bus);
                if (rc)
                        return rc;
        }

        return i2c_probe(dev_addr);
}

/**
 * ti_i2c_eeprom_read - Read data from an EEPROM
 * @dev_addr: The device address of the EEPROM
 * @offset: Offset to start reading in the EEPROM
 * @ep: Pointer to a buffer to read into
 * @epsize: Size of buffer
 *
 * Return: 0 on success or corresponding result of i2c_read
 */
static int __maybe_unused ti_i2c_eeprom_read(int dev_addr, int offset,
                                             uchar *ep, int epsize)
{
        return i2c_read(dev_addr, offset, 2, ep, epsize);
}
#endif

/**
 * ti_eeprom_string_cleanup() - Handle eeprom programming errors
 * @s:  eeprom string (should be NULL terminated)
 *
 * Some Board manufacturers do not add a NULL termination at the
 * end of string, instead some binary information is kludged in, hence
 * convert the string to just printable characters of ASCII chart.
 */
static void __maybe_unused ti_eeprom_string_cleanup(char *s)
{
        int i, l;

        l = strlen(s);
        for (i = 0; i < l; i++, s++)
                if (*s < ' ' || *s > '~') {
                        *s = 0;
                        break;
                }
}

__weak void gpi2c_init(void)
{
}

static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
                                            u32 header, u32 size, uint8_t *ep)
{
        int rc;

#if CONFIG_IS_ENABLED(DM_I2C)
        struct udevice *dev;
        struct udevice *bus;

        rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
        if (rc)
                return rc;
        rc = dm_i2c_probe(bus, dev_addr, 0, &dev);
        if (rc)
                return rc;

        /*
         * Read the header first then only read the other contents.
         */
        rc = i2c_set_chip_offset_len(dev, 1);
        if (rc)
                return rc;

        /*
         * Skip checking result here since this could be a valid i2c read fail
         * on some boards that use 2 byte addressing.
         * We must allow for fall through to check the data if 2 byte
         * addressing works
         */
        (void)dm_i2c_read(dev, 0, ep, size);

        /* Corrupted data??? */
        if (*((u32 *)ep) != header) {
                /*
                 * read the eeprom header using i2c again, but use only a
                 * 2 byte address (some newer boards need this..)
                 */
                rc = i2c_set_chip_offset_len(dev, 2);
                if (rc)
                        return rc;

                rc = dm_i2c_read(dev, 0, ep, size);
                if (rc)
                        return rc;
        }
        if (*((u32 *)ep) != header)
                return -1;
#else
        u32 byte;

        gpi2c_init();
        rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
        if (rc)
                return rc;

        /*
         * Read the header first then only read the other contents.
         */
        byte = 1;

        /*
         * Skip checking result here since this could be a valid i2c read fail
         * on some boards that use 2 byte addressing.
         * We must allow for fall through to check the data if 2 byte
         * addressing works
         */
        (void)i2c_read(dev_addr, 0x0, byte, ep, size);

        /* Corrupted data??? */
        if (*((u32 *)ep) != header) {
                /*
                 * read the eeprom header using i2c again, but use only a
                 * 2 byte address (some newer boards need this..)
                 */
                byte = 2;
                rc = i2c_read(dev_addr, 0x0, byte, ep, size);
                if (rc)
                        return rc;
        }
        if (*((u32 *)ep) != header)
                return -1;
#endif
        return 0;
}

int __maybe_unused ti_emmc_boardid_get(void)
{
        int rc;
        struct udevice *dev;
        struct mmc *mmc;
        struct ti_common_eeprom *ep;
        struct ti_am_eeprom brdid;
        struct blk_desc *bdesc;
        uchar *buffer;

        ep = TI_EEPROM_DATA;
        if (ep->header == TI_EEPROM_HEADER_MAGIC)
                return 0;       /* EEPROM has already been read */

        /* Initialize with a known bad marker for emmc fails.. */
        ep->header = TI_DEAD_EEPROM_MAGIC;
        ep->name[0] = 0x0;
        ep->version[0] = 0x0;
        ep->serial[0] = 0x0;
        ep->config[0] = 0x0;

        /* uclass object initialization */
        rc = mmc_initialize(NULL);
        if (rc)
                return rc;

        /* Set device to /dev/mmcblk1 */
        rc = uclass_get_device(UCLASS_MMC, 1, &dev);
        if (rc)
                return rc;

        /* Grab the mmc device */
        mmc = mmc_get_mmc_dev(dev);
        if (!mmc)
                return -ENODEV;

        /* mmc hardware initialization routine */
        mmc_init(mmc);

        /* Set partition to /dev/mmcblk1boot1 */
        rc = mmc_switch_part(mmc, 2);
        if (rc)
                return rc;

        buffer = malloc(mmc->read_bl_len);
        if (!buffer)
                return -ENOMEM;

        bdesc = mmc_get_blk_desc(mmc);

        /* blk_dread returns the number of blocks read*/
        if (blk_dread(bdesc, 0L, 1, buffer) != 1) {
                rc = -EIO;
                goto cleanup;
        }

        memcpy(&brdid, buffer, sizeof(brdid));

        /* Write out the ep struct values */
        ep->header = brdid.header;
        strlcpy(ep->name, brdid.name, TI_EEPROM_HDR_NAME_LEN + 1);
        ti_eeprom_string_cleanup(ep->name);
        strlcpy(ep->version, brdid.version, TI_EEPROM_HDR_REV_LEN + 1);
        ti_eeprom_string_cleanup(ep->version);
        strlcpy(ep->serial, brdid.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
        ti_eeprom_string_cleanup(ep->serial);

cleanup:
        free(buffer);

        return rc;
}

int __maybe_unused ti_i2c_eeprom_am_set(const char *name, const char *rev)
{
        struct ti_common_eeprom *ep;

        if (!name || !rev)
                return -1;

        ep = TI_EEPROM_DATA;
        if (ep->header == TI_EEPROM_HEADER_MAGIC)
                goto already_set;

        /* Set to 0 all fields */
        memset(ep, 0, sizeof(*ep));
        strncpy(ep->name, name, TI_EEPROM_HDR_NAME_LEN);
        strncpy(ep->version, rev, TI_EEPROM_HDR_REV_LEN);
        /* Some dummy serial number to identify the platform */
        strncpy(ep->serial, "0000", TI_EEPROM_HDR_SERIAL_LEN);
        /* Mark it with a valid header */
        ep->header = TI_EEPROM_HEADER_MAGIC;

already_set:
        return 0;
}

int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr)
{
        int rc;
        struct ti_am_eeprom am_ep;
        struct ti_common_eeprom *ep;

        ep = TI_EEPROM_DATA;
#ifndef CONFIG_SPL_BUILD
        if (ep->header == TI_EEPROM_HEADER_MAGIC)
                return 0; /* EEPROM has already been read */
#endif

        /* Initialize with a known bad marker for i2c fails.. */
        ep->header = TI_DEAD_EEPROM_MAGIC;
        ep->name[0] = 0x0;
        ep->version[0] = 0x0;
        ep->serial[0] = 0x0;
        ep->config[0] = 0x0;

        rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
                               sizeof(am_ep), (uint8_t *)&am_ep);
        if (rc)
                return rc;

        ep->header = am_ep.header;
        strlcpy(ep->name, am_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
        ti_eeprom_string_cleanup(ep->name);

        /* BeagleBone Green '1' eeprom, board_rev: 0x1a 0x00 0x00 0x00 */
        if (am_ep.version[0] == 0x1a && am_ep.version[1] == 0x00 &&
            am_ep.version[2] == 0x00 && am_ep.version[3] == 0x00)
                strlcpy(ep->version, "BBG1", TI_EEPROM_HDR_REV_LEN + 1);
        else
                strlcpy(ep->version, am_ep.version, TI_EEPROM_HDR_REV_LEN + 1);
        ti_eeprom_string_cleanup(ep->version);
        strlcpy(ep->serial, am_ep.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
        ti_eeprom_string_cleanup(ep->serial);
        strlcpy(ep->config, am_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
        ti_eeprom_string_cleanup(ep->config);

        memcpy(ep->mac_addr, am_ep.mac_addr,
               TI_EEPROM_HDR_NO_OF_MAC_ADDR * TI_EEPROM_HDR_ETH_ALEN);

        return 0;
}

int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr)
{
        int rc, offset = 0;
        struct dra7_eeprom dra7_ep;
        struct ti_common_eeprom *ep;

        ep = TI_EEPROM_DATA;
#ifndef CONFIG_SPL_BUILD
        if (ep->header == DRA7_EEPROM_HEADER_MAGIC)
                return 0; /* EEPROM has already been read */
#endif

        /* Initialize with a known bad marker for i2c fails.. */
        ep->header = TI_DEAD_EEPROM_MAGIC;
        ep->name[0] = 0x0;
        ep->version[0] = 0x0;
        ep->serial[0] = 0x0;
        ep->config[0] = 0x0;
        ep->emif1_size = 0;
        ep->emif2_size = 0;

        rc = ti_i2c_eeprom_get(bus_addr, dev_addr, DRA7_EEPROM_HEADER_MAGIC,
                               sizeof(dra7_ep), (uint8_t *)&dra7_ep);
        if (rc)
                return rc;

        ep->header = dra7_ep.header;
        strlcpy(ep->name, dra7_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
        ti_eeprom_string_cleanup(ep->name);

        offset = dra7_ep.version_major - 1;

        /* Rev F is skipped */
        if (offset >= 5)
                offset = offset + 1;
        snprintf(ep->version, TI_EEPROM_HDR_REV_LEN + 1, "%c.%d",
                 'A' + offset, dra7_ep.version_minor);
        ti_eeprom_string_cleanup(ep->version);
        ep->emif1_size = (u64)dra7_ep.emif1_size;
        ep->emif2_size = (u64)dra7_ep.emif2_size;
        strlcpy(ep->config, dra7_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
        ti_eeprom_string_cleanup(ep->config);

        return 0;
}

static int ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record *record,
                                          struct ti_am6_eeprom *ep,
                                          char **mac_addr,
                                          u8 mac_addr_max_cnt,
                                          u8 *mac_addr_cnt)
{
        switch (record->header.id) {
        case TI_AM6_EEPROM_RECORD_BOARD_INFO:
                if (record->header.len != sizeof(record->data.board_info))
                        return -EINVAL;

                if (!ep)
                        break;

                /* Populate (and clean, if needed) the board name */
                strlcpy(ep->name, record->data.board_info.name,
                        sizeof(ep->name));
                ti_eeprom_string_cleanup(ep->name);

                /* Populate selected other fields from the board info record */
                strlcpy(ep->version, record->data.board_info.version,
                        sizeof(ep->version));
                strlcpy(ep->software_revision,
                        record->data.board_info.software_revision,
                        sizeof(ep->software_revision));
                strlcpy(ep->serial, record->data.board_info.serial,
                        sizeof(ep->serial));
                break;
        case TI_AM6_EEPROM_RECORD_MAC_INFO:
                if (record->header.len != sizeof(record->data.mac_info))
                        return -EINVAL;

                if (!mac_addr || !mac_addr_max_cnt)
                        break;

                *mac_addr_cnt = ((record->data.mac_info.mac_control &
                                 TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK) >>
                                 TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT) + 1;

                /*
                 * The EEPROM can (but may not) hold a very large amount
                 * of MAC addresses, by far exceeding what we want/can store
                 * in the common memory array, so only grab what we can fit.
                 * Note that a value of 0 means 1 MAC address, and so on.
                 */
                *mac_addr_cnt = min(*mac_addr_cnt, mac_addr_max_cnt);

                memcpy(mac_addr, record->data.mac_info.mac_addr,
                       *mac_addr_cnt * TI_EEPROM_HDR_ETH_ALEN);
                break;
        case 0x00:
                /* Illegal value... Fall through... */
        case 0xFF:
                /* Illegal value... Something went horribly wrong... */
                return -EINVAL;
        default:
                pr_warn("%s: Ignoring record id %u\n", __func__,
                        record->header.id);
        }

        return 0;
}

int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
                                         struct ti_am6_eeprom *ep,
                                         char **mac_addr,
                                         u8 mac_addr_max_cnt,
                                         u8 *mac_addr_cnt)
{
        struct udevice *dev;
        struct udevice *bus;
        unsigned int eeprom_addr;
        struct ti_am6_eeprom_record_board_id board_id;
        struct ti_am6_eeprom_record record;
        int rc;
        int consecutive_bad_records = 0;

        /* Initialize with a known bad marker for i2c fails.. */
        memset(ep, 0, sizeof(*ep));
        ep->header = TI_DEAD_EEPROM_MAGIC;

        /* Read the board ID record which is always the first EEPROM record */
        rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
                               sizeof(board_id), (uint8_t *)&board_id);
        if (rc)
                return rc;

        /*
         * Handle case of bad 2 byte eeproms that responds to 1 byte addressing
         * but gets stuck in const addressing when read requests are performed
         * on offsets. We re-read the board ID to ensure we have sane data back
         */
        rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
                               sizeof(board_id), (uint8_t *)&board_id);
        if (rc)
                return rc;

        if (board_id.header.id != TI_AM6_EEPROM_RECORD_BOARD_ID) {
                pr_err("%s: Invalid board ID record!\n", __func__);
                return -EINVAL;
        }

        /* Establish DM handle to board config EEPROM */
        rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
        if (rc)
                return rc;
        rc = i2c_get_chip(bus, dev_addr, 1, &dev);
        if (rc)
                return rc;

        ep->header = TI_EEPROM_HEADER_MAGIC;

        /* Ready to parse TLV structure. Initialize variables... */
        *mac_addr_cnt = 0;

        /*
         * After the all-encompassing board ID record all other records follow
         * a TLV-type scheme. Point to the first such record and then start
         * parsing those one by one.
         */
        eeprom_addr = sizeof(board_id);

        while (consecutive_bad_records < 10) {
                rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header,
                                 sizeof(record.header));
                if (rc)
                        return rc;

                /*
                 * Check for end of list marker. If we reached it don't go
                 * any further and stop parsing right here.
                 */
                if (record.header.id == TI_AM6_EEPROM_RECORD_END_LIST)
                        break;

                eeprom_addr += sizeof(record.header);

                debug("%s: dev_addr=0x%02x header.id=%u header.len=%u\n",
                      __func__, dev_addr, record.header.id,
                      record.header.len);

                /* Read record into memory if it fits */
                if (record.header.len <= sizeof(record.data)) {
                        rc = dm_i2c_read(dev, eeprom_addr,
                                         (uint8_t *)&record.data,
                                         record.header.len);
                        if (rc)
                                return rc;

                        /* Process record */
                        rc = ti_i2c_eeprom_am6_parse_record(&record, ep,
                                                            mac_addr,
                                                            mac_addr_max_cnt,
                                                            mac_addr_cnt);
                        if (rc) {
                                pr_err("%s: EEPROM parsing error!\n", __func__);
                                return rc;
                        }
                        consecutive_bad_records = 0;
                } else {
                        /*
                         * We may get here in case of larger records which
                         * are not yet understood.
                         */
                        pr_err("%s: Ignoring record id %u\n", __func__,
                               record.header.id);
                        consecutive_bad_records++;
                }

                eeprom_addr += record.header.len;
        }

        return 0;
}

int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr)
{
        struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
        int ret;

        /*
         * Always execute EEPROM read by not allowing to bypass it during the
         * first invocation of SPL which happens on the R5 core.
         */
#if !(defined(CONFIG_SPL_BUILD) && defined(CONFIG_CPU_V7R))
        if (ep->header == TI_EEPROM_HEADER_MAGIC) {
                debug("%s: EEPROM has already been read\n", __func__);
                return 0;
        }
#endif

        ret = ti_i2c_eeprom_am6_get(bus_addr, dev_addr, ep,
                                    (char **)ep->mac_addr,
                                    AM6_EEPROM_HDR_NO_OF_MAC_ADDR,
                                    &ep->mac_addr_cnt);
        return ret;
}

bool __maybe_unused board_ti_k3_is(char *name_tag)
{
        struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;

        if (ep->header == TI_DEAD_EEPROM_MAGIC)
                return false;
        return !strncmp(ep->name, name_tag, AM6_EEPROM_HDR_NAME_LEN);
}

bool __maybe_unused board_ti_is(char *name_tag)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (ep->header == TI_DEAD_EEPROM_MAGIC)
                return false;
        return !strncmp(ep->name, name_tag, TI_EEPROM_HDR_NAME_LEN);
}

bool __maybe_unused board_ti_rev_is(char *rev_tag, int cmp_len)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;
        int l;

        if (ep->header == TI_DEAD_EEPROM_MAGIC)
                return false;

        l = cmp_len > TI_EEPROM_HDR_REV_LEN ? TI_EEPROM_HDR_REV_LEN : cmp_len;
        return !strncmp(ep->version, rev_tag, l);
}

char * __maybe_unused board_ti_get_rev(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
        return ep->version;
}

char * __maybe_unused board_ti_get_config(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
        return ep->config;
}

char * __maybe_unused board_ti_get_name(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
        return ep->name;
}

void __maybe_unused
board_ti_get_eth_mac_addr(int index,
                          u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (ep->header == TI_DEAD_EEPROM_MAGIC)
                goto fail;

        if (index < 0 || index >= TI_EEPROM_HDR_NO_OF_MAC_ADDR)
                goto fail;

        memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
        return;

fail:
        memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
}

void __maybe_unused
board_ti_am6_get_eth_mac_addr(int index,
                              u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
{
        struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;

        if (ep->header == TI_DEAD_EEPROM_MAGIC)
                goto fail;

        if (index < 0 || index >= ep->mac_addr_cnt)
                goto fail;

        memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
        return;

fail:
        memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
}

u64 __maybe_unused board_ti_get_emif1_size(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
                return 0;

        return ep->emif1_size;
}

u64 __maybe_unused board_ti_get_emif2_size(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
                return 0;

        return ep->emif2_size;
}

void __maybe_unused set_board_info_env(char *name)
{
        char *unknown = "unknown";
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (name)
                env_set("board_name", name);
        else if (strlen(ep->name) != 0)
                env_set("board_name", ep->name);
        else
                env_set("board_name", unknown);

        if (strlen(ep->version) != 0)
                env_set("board_rev", ep->version);
        else
                env_set("board_rev", unknown);

        if (strlen(ep->serial) != 0)
                env_set("board_serial", ep->serial);
        else
                env_set("board_serial", unknown);
}

void __maybe_unused set_board_info_env_am6(char *name)
{
        char *unknown = "unknown";
        struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;

        if (name)
                env_set("board_name", name);
        else if (strlen(ep->name) != 0)
                env_set("board_name", ep->name);
        else
                env_set("board_name", unknown);

        if (strlen(ep->version) != 0)
                env_set("board_rev", ep->version);
        else
                env_set("board_rev", unknown);

        if (strlen(ep->software_revision) != 0)
                env_set("board_software_revision", ep->software_revision);
        else
                env_set("board_software_revision", unknown);

        if (strlen(ep->serial) != 0)
                env_set("board_serial", ep->serial);
        else
                env_set("board_serial", unknown);
}

static u64 mac_to_u64(u8 mac[6])
{
        int i;
        u64 addr = 0;

        for (i = 0; i < 6; i++) {
                addr <<= 8;
                addr |= mac[i];
        }

        return addr;
}

static void u64_to_mac(u64 addr, u8 mac[6])
{
        mac[5] = addr;
        mac[4] = addr >> 8;
        mac[3] = addr >> 16;
        mac[2] = addr >> 24;
        mac[1] = addr >> 32;
        mac[0] = addr >> 40;
}

void board_ti_set_ethaddr(int index)
{
        uint8_t mac_addr[6];
        int i;
        u64 mac1, mac2;
        u8 mac_addr1[6], mac_addr2[6];
        int num_macs;
        /*
         * Export any Ethernet MAC addresses from EEPROM.
         * The 2 MAC addresses in EEPROM define the address range.
         */
        board_ti_get_eth_mac_addr(0, mac_addr1);
        board_ti_get_eth_mac_addr(1, mac_addr2);

        if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
                mac1 = mac_to_u64(mac_addr1);
                mac2 = mac_to_u64(mac_addr2);

                /* must contain an address range */
                num_macs = mac2 - mac1 + 1;
                if (num_macs <= 0)
                        return;

                if (num_macs > 50) {
                        printf("%s: Too many MAC addresses: %d. Limiting to 50\n",
                               __func__, num_macs);
                        num_macs = 50;
                }

                for (i = 0; i < num_macs; i++) {
                        u64_to_mac(mac1 + i, mac_addr);
                        if (is_valid_ethaddr(mac_addr)) {
                                eth_env_set_enetaddr_by_index("eth", i + index,
                                                              mac_addr);
                        }
                }
        }
}

void board_ti_am6_set_ethaddr(int index, int count)
{
        u8 mac_addr[6];
        int i;

        for (i = 0; i < count; i++) {
                board_ti_am6_get_eth_mac_addr(i, mac_addr);
                if (is_valid_ethaddr(mac_addr))
                        eth_env_set_enetaddr_by_index("eth", i + index,
                                                      mac_addr);
        }
}

bool __maybe_unused board_ti_was_eeprom_read(void)
{
        struct ti_common_eeprom *ep = TI_EEPROM_DATA;

        if (ep->header == TI_EEPROM_HEADER_MAGIC)
                return true;
        else
                return false;
}