TI: DaVinci DM365: Enabling network Support on DM365 EVM

This patch enables EMAC on the DM365 EVM.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Acked-by: Tom Rix <Tom.Rix@windriver.com>

diff --git a/board/davinci/dm365evm/dm365evm.c b/board/davinci/dm365evm/dm365evm.c
index 99392b3967f1f51c4acbe10522aab4b591fc0c7b..5b97060539249131239c120e6ff43a61949d3e22 100644 (file)
--- a/board/davinci/dm365evm/dm365evm.c
+++ b/board/davinci/dm365evm/dm365evm.c
@@ -17,9 +17,12 @@
 
 #include <common.h>
 #include <nand.h>
+#include <asm/io.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/emif_defs.h>
 #include <asm/arch/nand_defs.h>
+#include <asm/arch/gpio_defs.h>
+#include <netdev.h>
 #include "../common/misc.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -32,6 +35,46 @@ int board_init(void)
        return 0;
 }
 
+#ifdef CONFIG_DRIVER_TI_EMAC
+int board_eth_init(bd_t *bis)
+{
+       uint8_t eeprom_enetaddr[6];
+       int i;
+       struct davinci_gpio *gpio1_base =
+                       (struct davinci_gpio *)DAVINCI_GPIO_BANK01;
+
+       /* Configure PINMUX 3 to enable EMAC pins */
+       writel((readl(PINMUX3) | 0x1affff), PINMUX3);
+
+       /* Configure GPIO20 as output */
+       writel((readl(&gpio1_base->dir) & ~(1 << 20)), &gpio1_base->dir);
+
+       /* Toggle GPIO 20 */
+       for (i = 0; i < 20; i++) {
+               /* GPIO 20 low */
+               writel((readl(&gpio1_base->out_data) & ~(1 << 20)),
+                                               &gpio1_base->out_data);
+
+               udelay(1000);
+
+               /* GPIO 20 high */
+               writel((readl(&gpio1_base->out_data) | (1 << 20)),
+                                               &gpio1_base->out_data);
+       }
+
+       /* Configure I2C pins so that EEPROM can be read */
+       writel((readl(PINMUX3) | 0x01400000), PINMUX3);
+
+       /* Read Ethernet MAC address from EEPROM */
+       if (dvevm_read_mac_address(eeprom_enetaddr))
+               dv_configure_mac_address(eeprom_enetaddr);
+
+       davinci_emac_initialize();
+
+       return 0;
+}
+#endif
+
 #ifdef CONFIG_NAND_DAVINCI
 static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip)
 {