u-boot/board/ti/common/board_detect.c
Nishanth Menon d2ab2a2baf board: ti: common: board_detect: Fix EEPROM read quirk for AM6 style data
The situation is similar to commit bf6376642f ("board: ti: common:
board_detect: Fix EEPROM read quirk"). This is seen on a variant of
eeproms seen on some BeagleBone-AI64 which now has a mix of both 1 byte
addressing and 2 byte addressing eeproms.

Unlike the am335x (ti_i2c_eeprom_am_get) and dra7
(ti_i2c_eeprom_dra7_get) which use constant data structure which allows
us to do a complete read of the data, the
am6(ti_i2c_eeprom_am6_get) eeprom parse operation is dynamic.

This removes the option of being able to read the complete eeprom data
in one single shot.

Fortunately, on the I2C bus, we do see the following behavior: In 1
byte mode, if we attempt to read the first header data yet again, the
misbehaving 2 byte addressing device acts in constant addressing mode
which results in the header not matching up and follow on attempt at 2
byte addressing scheme grabs the correct data.

This costs us an extra ~3 milliseconds, which is a minor penalty
compared to the consistent image support we need to have.

Reported-by: Jason Kridner <jkridner@beagleboard.org>
Fixes: a58147c2db ("board: ti: common: board_detect: Do 1byte address checks first.")
Signed-off-by: Nishanth Menon <nm@ti.com>
2022-09-29 10:10:39 -04:00

804 lines
19 KiB
C

// 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;
}