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SMDK5250: Add ethernet support

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This patch enable support for SMC911X based ethernet device.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Chander Kashyap 2012-02-09 01:26:19 +00:00 committed by Albert ARIBAUD
parent 81e352032c
commit bf936210da
2 changed files with 103 additions and 2 deletions
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94
board/samsung/smdk5250/smdk5250.c
View file

@ -31,6 +31,91 @@
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();
@ -80,6 +165,15 @@ void dram_init_banksize(void)
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)
{

11
include/configs/smdk5250.h
View file

@ -96,8 +96,7 @@
#define CONFIG_CMD_MMC
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_FAT
#undef CONFIG_CMD_NET
#undef CONFIG_CMD_NFS
#define CONFIG_CMD_NET
#define CONFIG_BOOTDELAY 3
#define CONFIG_ZERO_BOOTDELAY_CHECK
@ -191,6 +190,14 @@
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_LOAD_ADDR - 0x1000000)
/* Ethernet Controllor Driver */
#ifdef CONFIG_CMD_NET
#define CONFIG_SMC911X
#define CONFIG_SMC911X_BASE 0x5000000
#define CONFIG_SMC911X_16_BIT
#define CONFIG_ENV_SROM_BANK 1
#endif /*CONFIG_CMD_NET*/
/* Enable devicetree support */
#define CONFIG_OF_LIBFDT