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board: sama5d2_xplained: Set 'ethaddr' got from AT24MAC

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If 'ethaddr' is not set, we will get the ethernet address from AT24MAC,
and set it to 'ethaddr' variable.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Songjun Wu <songjun.wu@microchip.com>
Reviewed-by: Andreas Bießmann <biessmann@corscience.de>
This commit is contained in:
Wenyou Yang 2016-10-17 09:55:25 +08:00 committed by Andreas Bießmann
parent 7bfaa0ceb8
commit 0daa2e1870
2 changed files with 57 additions and 0 deletions
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51
board/atmel/sama5d2_xplained/sama5d2_xplained.c
View File

@ -7,6 +7,8 @@
#include <common.h>
#include <atmel_hlcdc.h>
#include <dm.h>
#include <i2c.h>
#include <lcd.h>
#include <mmc.h>
#include <net.h>
@ -192,6 +194,55 @@ int board_eth_init(bd_t *bis)
return rc;
}
#ifdef CONFIG_CMD_I2C
static int set_ethaddr_from_eeprom(void)
{
const int ETH_ADDR_LEN = 6;
unsigned char ethaddr[ETH_ADDR_LEN];
const char *ETHADDR_NAME = "ethaddr";
struct udevice *bus, *dev;
if (getenv(ETHADDR_NAME))
return 0;
if (uclass_get_device_by_seq(UCLASS_I2C, 1, &bus)) {
printf("Cannot find I2C bus 1\n");
return -1;
}
if (dm_i2c_probe(bus, AT24MAC_ADDR, 0, &dev)) {
printf("Failed to probe I2C chip\n");
return -1;
}
if (dm_i2c_read(dev, AT24MAC_REG, ethaddr, ETH_ADDR_LEN)) {
printf("Failed to read ethernet address from EEPROM\n");
return -1;
}
if (!is_valid_ethaddr(ethaddr)) {
printf("The ethernet address read from EEPROM is not valid!\n");
return -1;
}
return eth_setenv_enetaddr(ETHADDR_NAME, ethaddr);
}
#else
static int set_ethaddr_from_eeprom(void)
{
return 0;
}
#endif
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
set_ethaddr_from_eeprom();
return 0;
}
#endif
/* SPL */
#ifdef CONFIG_SPL_BUILD
void spl_board_init(void)

6
include/configs/sama5d2_xplained.h
View File

@ -15,6 +15,8 @@
#include "at91-sama5_common.h"
#define CONFIG_MISC_INIT_R
/* SDRAM */
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_DDRCS
@ -54,6 +56,10 @@
#define CONFIG_DOS_PARTITION
#endif
/* I2C */
#define AT24MAC_ADDR 0x5c
#define AT24MAC_REG 0x9a
/* Ethernet Hardware */
#define CONFIG_MACB
#define CONFIG_RMII