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authorWenyou Yang <wenyou.yang@atmel.com>2016-10-17 09:55:25 +0800
committerAndreas Bießmann <andreas@biessmann.org>2016-10-28 18:37:15 +0200
commit0daa2e1870762ebf0a9ae97a6a923e938faddbc4 (patch)
tree7a3e9656ceb7a12771f81647867582654125a796 /board
parent7bfaa0ceb8d938df680223dde14ef2234ab69587 (diff)
board: sama5d2_xplained: Set 'ethaddr' got from AT24MAC
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>
Diffstat (limited to 'board')
-rw-r--r--board/atmel/sama5d2_xplained/sama5d2_xplained.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/board/atmel/sama5d2_xplained/sama5d2_xplained.c b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
index 7ccadf214a1..cceccd2ac45 100644
--- a/board/atmel/sama5d2_xplained/sama5d2_xplained.c
+++ b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
@@ -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)