u-boot/board/davinci/dm365evm/dm365evm.c
Sandeep Paulraj 4df30f3bb7 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>
2009-10-13 06:17:37 -05:00

102 lines
2.6 KiB
C

/*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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;
int board_init(void)
{
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM365_EVM;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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)
{
struct nand_chip *this = mtd->priv;
u32 wbase = (u32) this->IO_ADDR_W;
u32 rbase = (u32) this->IO_ADDR_R;
if (chip == 1) {
__set_bit(14, &wbase);
__set_bit(14, &rbase);
} else {
__clear_bit(14, &wbase);
__clear_bit(14, &rbase);
}
this->IO_ADDR_W = (void *)wbase;
this->IO_ADDR_R = (void *)rbase;
}
int board_nand_init(struct nand_chip *nand)
{
davinci_nand_init(nand);
nand->select_chip = nand_dm365evm_select_chip;
return 0;
}
#endif