[U-Boot] [PATCH] da830: add support to read mac addr from EEPROM

[nagabhushana.netagunte at ti.com]

From: Nagabhushana Netagunte <nagabhushana.netagunte at ti.com>

da830 boards have mac address stored in I2C EEPROM. This patch
adds support to restore mac address from EEPROM if environment variable
'ethaddr' is not set.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj at ti.com>
Signed-off-by: Nagabhushana Netagunte <nagabhushana.netagunte at ti.com>
---
 board/davinci/da8xxevm/da830evm.c |   20 ++++++++++++++++++++
 include/configs/da830evm.h        |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/board/davinci/da8xxevm/da830evm.c b/board/davinci/da8xxevm/da830evm.c
index 0650653..69ed293 100644
--- a/board/davinci/da8xxevm/da830evm.c
+++ b/board/davinci/da8xxevm/da830evm.c
@@ -188,6 +188,26 @@ int board_init(void)
 
 #define PHY_SW_I2C_ADDR	0x5f /* Address of PHY on i2c bus */
 
+int misc_init_r(void)
+{
+	uint8_t eeprom_enetaddr[6];
+	uint8_t val[2];
+
+	if (!eth_getenv_enetaddr("ethaddr", eeprom_enetaddr)) {
+		/* Read Ethernet MAC address from EEPROM if available. */
+		if (dvevm_read_mac_address(eeprom_enetaddr))
+			/* Set Ethernet MAC address from EEPROM */
+			davinci_sync_env_enetaddr(eeprom_enetaddr);
+	}
+
+	val[0] = 0x01;
+	val[1] = 0x23;
+
+	if (i2c_write(PHY_SW_I2C_ADDR, 0, 0, val, 2))
+		printf("Ethernet switch start failed!\n");
+
+}
+
 /*
  * Initializes on-board ethernet controllers.
  */
diff --git a/include/configs/da830evm.h b/include/configs/da830evm.h
index 66fdea2..a451513 100644
--- a/include/configs/da830evm.h
+++ b/include/configs/da830evm.h
@@ -160,6 +160,7 @@
 /*
  * U-Boot general configuration
  */
+#define CONFIG_MISC_INIT_R
 #undef CONFIG_USE_IRQ			/* No IRQ/FIQ in U-Boot */
 #undef CONFIG_MISC_INIT_R
 #undef CONFIG_BOOTDELAY
-- 
1.6.2.4