121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2018
|
||
|
|
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
|
||
|
|
*
|
||
|
|
* Based on code developed by:
|
||
|
|
*
|
||
|
|
* Copyright (C) 2012 TQ-Systems GmbH
|
||
|
|
* Daniel Gericke <daniel.gericke@tqs.de>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <env.h>
|
||
|
|
#include <i2c.h>
|
||
|
|
#include "kp_id_rev.h"
|
||
|
|
|
||
|
|
static int eeprom_has_been_read;
|
||
|
|
static struct id_eeprom eeprom;
|
||
|
|
|
||
|
|
void show_eeprom(void)
|
||
|
|
{
|
||
|
|
char safe_string[33];
|
||
|
|
int i;
|
||
|
|
u8 *p;
|
||
|
|
|
||
|
|
puts("Module EEPROM:\n");
|
||
|
|
/* ID */
|
||
|
|
for (i = 0; i <= sizeof(eeprom.id) && 0xff != eeprom.id[i]; ++i)
|
||
|
|
safe_string[i] = eeprom.id[i];
|
||
|
|
safe_string[i] = '\0';
|
||
|
|
|
||
|
|
if (!strncmp(safe_string, "TQM", 3)) {
|
||
|
|
printf(" ID: %s\n", safe_string);
|
||
|
|
env_set("boardtype", safe_string);
|
||
|
|
} else {
|
||
|
|
puts(" unknown hardware variant\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Serial number */
|
||
|
|
for (i = 0; (sizeof(eeprom.serial) >= i) &&
|
||
|
|
(eeprom.serial[i] >= 0x30) &&
|
||
|
|
(eeprom.serial[i] <= 0x39); ++i)
|
||
|
|
safe_string[i] = eeprom.serial[i];
|
||
|
|
safe_string[i] = '\0';
|
||
|
|
|
||
|
|
if (strlen(safe_string) == 8) {
|
||
|
|
printf(" SN: %s\n", safe_string);
|
||
|
|
env_set("serial#", safe_string);
|
||
|
|
} else {
|
||
|
|
puts(" unknown serial number\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* MAC address */
|
||
|
|
p = eeprom.mac;
|
||
|
|
if (!is_valid_ethaddr(p)) {
|
||
|
|
printf(" Not valid ETH EEPROM addr!\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
||
|
|
p[0], p[1], p[2], p[3], p[4], p[5]);
|
||
|
|
|
||
|
|
eth_env_set_enetaddr("ethaddr", p);
|
||
|
|
}
|
||
|
|
|
||
|
|
int read_eeprom(void)
|
||
|
|
{
|
||
|
|
struct udevice *dev;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (eeprom_has_been_read)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
ret = i2c_get_chip_for_busnum(CONFIG_SYS_EEPROM_BUS_NUM,
|
||
|
|
CONFIG_SYS_I2C_EEPROM_ADDR,
|
||
|
|
CONFIG_SYS_I2C_EEPROM_ADDR_LEN, &dev);
|
||
|
|
if (ret) {
|
||
|
|
printf("Cannot find EEPROM !\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = dm_i2c_read(dev, 0x0, (uchar *)&eeprom, sizeof(eeprom));
|
||
|
|
|
||
|
|
eeprom_has_been_read = (ret == 0) ? 1 : 0;
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int read_board_id(void)
|
||
|
|
{
|
||
|
|
unsigned char rev_id = 0x42;
|
||
|
|
char rev_str[32], buf[8];
|
||
|
|
struct udevice *dev;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = i2c_get_chip_for_busnum(2, 0x22, 1, &dev);
|
||
|
|
if (ret) {
|
||
|
|
printf("Cannot find pcf8574 IO expander !\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
dm_i2c_read(dev, 0x0, &rev_id, sizeof(rev_id));
|
||
|
|
|
||
|
|
sprintf(rev_str, "%02X", rev_id);
|
||
|
|
if (rev_id & 0x80) {
|
||
|
|
printf("BBoard:4x00 Rev:%s\n", rev_str);
|
||
|
|
env_set("boardtype", "ddc");
|
||
|
|
env_set("fit_config", "imx53_kb_conf");
|
||
|
|
} else {
|
||
|
|
printf("BBoard:40x0 Rev:%s\n", rev_str);
|
||
|
|
env_set("boardtype", "hsc");
|
||
|
|
env_set("fit_config", "imx53_kb_40x0_conf");
|
||
|
|
}
|
||
|
|
|
||
|
|
sprintf(buf, "kp-%s", env_get("boardtype"));
|
||
|
|
env_set("boardname", buf);
|
||
|
|
env_set("boardsoc", "imx53");
|
||
|
|
env_set("kb53_rev", rev_str);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|