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u-boot/board/samsung/smdk5250/smdk5250.c

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/*
* Copyright (C) 2012 Samsung Electronics
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <netdev.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
#include <asm/arch/sromc.h>
DECLARE_GLOBAL_DATA_PTR;
struct exynos5_gpio_part1 *gpio1;
#ifdef CONFIG_SMC911X
static void smc9115_pre_init(void)
{
u32 smc_bw_conf, smc_bc_conf;
int i;
/*
* SROM:CS1 and EBI
*
* GPY0[0] SROM_CSn[0]
* GPY0[1] SROM_CSn[1](2)
* GPY0[2] SROM_CSn[2]
* GPY0[3] SROM_CSn[3]
* GPY0[4] EBI_OEn(2)
* GPY0[5] EBI_EEn(2)
*
* GPY1[0] EBI_BEn[0](2)
* GPY1[1] EBI_BEn[1](2)
* GPY1[2] SROM_WAIT(2)
* GPY1[3] EBI_DATA_RDn(2)
*/
s5p_gpio_cfg_pin(&gpio1->y0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
s5p_gpio_cfg_pin(&gpio1->y0, 4, GPIO_FUNC(2));
s5p_gpio_cfg_pin(&gpio1->y0, 5, GPIO_FUNC(2));
for (i = 0; i < 4; i++)
s5p_gpio_cfg_pin(&gpio1->y1, i, GPIO_FUNC(2));
/*
* EBI: 8 Addrss Lines
*
* GPY3[0] EBI_ADDR[0](2)
* GPY3[1] EBI_ADDR[1](2)
* GPY3[2] EBI_ADDR[2](2)
* GPY3[3] EBI_ADDR[3](2)
* GPY3[4] EBI_ADDR[4](2)
* GPY3[5] EBI_ADDR[5](2)
* GPY3[6] EBI_ADDR[6](2)
* GPY3[7] EBI_ADDR[7](2)
*
* EBI: 16 Data Lines
*
* GPY5[0] EBI_DATA[0](2)
* GPY5[1] EBI_DATA[1](2)
* GPY5[2] EBI_DATA[2](2)
* GPY5[3] EBI_DATA[3](2)
* GPY5[4] EBI_DATA[4](2)
* GPY5[5] EBI_DATA[5](2)
* GPY5[6] EBI_DATA[6](2)
* GPY5[7] EBI_DATA[7](2)
*
* GPY6[0] EBI_DATA[8](2)
* GPY6[1] EBI_DATA[9](2)
* GPY6[2] EBI_DATA[10](2)
* GPY6[3] EBI_DATA[11](2)
* GPY6[4] EBI_DATA[12](2)
* GPY6[5] EBI_DATA[13](2)
* GPY6[6] EBI_DATA[14](2)
* GPY6[7] EBI_DATA[15](2)
*/
for (i = 0; i < 8; i++) {
s5p_gpio_cfg_pin(&gpio1->y3, i, GPIO_FUNC(2));
s5p_gpio_set_pull(&gpio1->y3, i, GPIO_PULL_UP);
s5p_gpio_cfg_pin(&gpio1->y5, i, GPIO_FUNC(2));
s5p_gpio_set_pull(&gpio1->y5, i, GPIO_PULL_UP);
s5p_gpio_cfg_pin(&gpio1->y6, i, GPIO_FUNC(2));
s5p_gpio_set_pull(&gpio1->y6, i, GPIO_PULL_UP);
}
/* Ethernet needs data bus width of 16 bits */
smc_bw_conf = SROMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK)
| SROMC_BYTE_ENABLE(CONFIG_ENV_SROM_BANK);
smc_bc_conf = SROMC_BC_TACS(0x01) | SROMC_BC_TCOS(0x01)
| SROMC_BC_TACC(0x06) | SROMC_BC_TCOH(0x01)
| SROMC_BC_TAH(0x0C) | SROMC_BC_TACP(0x09)
| SROMC_BC_PMC(0x01);
/* Select and configure the SROMC bank */
s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
}
#endif
int board_init(void)
{
gpio1 = (struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_5, PHYS_SDRAM_7_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_6, PHYS_SDRAM_7_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_7, PHYS_SDRAM_7_SIZE)
+ get_ram_size((long *)PHYS_SDRAM_8, PHYS_SDRAM_8_SIZE);
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2,
PHYS_SDRAM_2_SIZE);
gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3,
PHYS_SDRAM_3_SIZE);
gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4,
PHYS_SDRAM_4_SIZE);
gd->bd->bi_dram[4].start = PHYS_SDRAM_5;
gd->bd->bi_dram[4].size = get_ram_size((long *)PHYS_SDRAM_5,
PHYS_SDRAM_5_SIZE);
gd->bd->bi_dram[5].start = PHYS_SDRAM_6;
gd->bd->bi_dram[5].size = get_ram_size((long *)PHYS_SDRAM_6,
PHYS_SDRAM_6_SIZE);
gd->bd->bi_dram[6].start = PHYS_SDRAM_7;
gd->bd->bi_dram[6].size = get_ram_size((long *)PHYS_SDRAM_7,
PHYS_SDRAM_7_SIZE);
gd->bd->bi_dram[7].start = PHYS_SDRAM_8;
gd->bd->bi_dram[7].size = get_ram_size((long *)PHYS_SDRAM_8,
PHYS_SDRAM_8_SIZE);
}
int board_eth_init(bd_t *bis)
{
#ifdef CONFIG_SMC911X
smc9115_pre_init();
return smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return 0;
}
#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
printf("\nBoard: SMDK5250\n");
return 0;
}
#endif
#ifdef CONFIG_GENERIC_MMC
int board_mmc_init(bd_t *bis)
{
int i, err;
/*
* MMC2 SD card GPIO:
*
* GPC2[0] SD_2_CLK(2)
* GPC2[1] SD_2_CMD(2)
* GPC2[2] SD_2_CDn
* GPC2[3:6] SD_2_DATA[0:3](2)
*/
for (i = 0; i < 7; i++) {
/* GPC2[0:6] special function 2 */
s5p_gpio_cfg_pin(&gpio1->c2, i, GPIO_FUNC(0x2));
/* GPK2[0:6] drv 4x */
s5p_gpio_set_drv(&gpio1->c2, i, GPIO_DRV_4X);
/* GPK2[0:1] pull disable */
if (i == 0 || i == 1) {
s5p_gpio_set_pull(&gpio1->c2, i, GPIO_PULL_NONE);
continue;
}
/* GPK2[2:6] pull up */
s5p_gpio_set_pull(&gpio1->c2, i, GPIO_PULL_UP);
}
err = s5p_mmc_init(2, 4);
return err;
}
#endif
static void board_uart_init(void)
{
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
int i;
/* UART1 GPIOs (part1) : GPA0CON[7:4] 0x2222 */
for (i = 4; i < 8; i++) {
s5p_gpio_set_pull(&gpio1->a0, i, GPIO_PULL_NONE);
s5p_gpio_cfg_pin(&gpio1->a0, i, GPIO_FUNC(0x2));
}
}
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
board_uart_init();
return 0;
}
#endif
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