mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-24 03:53:31 +00:00
ec658e7ee5
Parse MAC addresses from EEPROM and set them in the env. This is needed to get MAC address for additional ethernet ports on the EVM. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
154 lines
3.3 KiB
C
154 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Board specific initialization for AM642 EVM
|
|
*
|
|
* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
|
|
* Keerthy <j-keerthy@ti.com>
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <spl.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <env.h>
|
|
|
|
#include "../common/board_detect.h"
|
|
|
|
#define board_is_am64x_gpevm() board_ti_k3_is("AM64-GPEVM")
|
|
#define board_is_am64x_skevm() board_ti_k3_is("AM64-SKEVM")
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int board_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = 0x80000000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_SPL_LOAD_FIT)
|
|
int board_fit_config_name_match(const char *name)
|
|
{
|
|
bool eeprom_read = board_ti_was_eeprom_read();
|
|
|
|
if (!eeprom_read || board_is_am64x_gpevm()) {
|
|
if (!strcmp(name, "k3-am642-r5-evm") || !strcmp(name, "k3-am642-evm"))
|
|
return 0;
|
|
} else if (board_is_am64x_skevm()) {
|
|
if (!strcmp(name, "k3-am642-r5-sk") || !strcmp(name, "k3-am642-sk"))
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
#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) {
|
|
printf("EEPROM not available at 0x%02x, trying to read at 0x%02x\n",
|
|
CONFIG_EEPROM_CHIP_ADDRESS, CONFIG_EEPROM_CHIP_ADDRESS + 1);
|
|
ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
|
|
CONFIG_EEPROM_CHIP_ADDRESS + 1);
|
|
if (ret)
|
|
pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
|
|
CONFIG_EEPROM_CHIP_ADDRESS + 1, ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
|
|
|
if (!do_board_detect())
|
|
printf("Board: %s rev %s\n", ep->name, ep->version);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_BOARD_LATE_INIT
|
|
static void setup_board_eeprom_env(void)
|
|
{
|
|
char *name = "am64x_gpevm";
|
|
|
|
if (do_board_detect())
|
|
goto invalid_eeprom;
|
|
|
|
if (board_is_am64x_gpevm())
|
|
name = "am64x_gpevm";
|
|
else if (board_is_am64x_skevm())
|
|
name = "am64x_skevm";
|
|
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);
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_BOARD_LATE_INIT
|
|
int board_late_init(void)
|
|
{
|
|
if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
|
|
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
|
|
|
setup_board_eeprom_env();
|
|
setup_serial();
|
|
/*
|
|
* The first MAC address for ethernet a.k.a. ethernet0 comes from
|
|
* efuse populated via the am654 gigabit eth switch subsystem driver.
|
|
* All the other ones are populated via EEPROM, hence continue with
|
|
* an index of 1.
|
|
*/
|
|
board_ti_am6_set_ethaddr(1, ep->mac_addr_cnt);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|