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SAMSUNG: SMDKC100: Adds ethernet support. 

Add setup for ethernet on SMDKC100, allowing kernel/ramdisk to be
loaded over tftp.

The preinit function will configure GPIO (GPK0CON) & SROMC to look
for environment in SROM Bank 3.

Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Naveen Krishna CH 2010-03-05 17:16:05 +09:00 committed by trix
parent 01802e0d22
commit 2528dc5236
2 changed files with 50 additions and 1 deletions
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39
board/samsung/smdkc100/smdkc100.c
View File

@ -23,10 +23,40 @@
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/smc.h>
#include <asm/arch/gpio.h>
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Miscellaneous platform dependent initialisations
*/
static void smc9115_pre_init(void)
{
u32 smc_bw_conf, smc_bc_conf;
struct s5pc100_gpio *const gpio =
(struct s5pc100_gpio *)S5PC100_GPIO_BASE;
/* gpio configuration GPK0CON */
gpio_cfg_pin(&gpio->gpio_k0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
/* Ethernet needs bus width of 16 bits */
smc_bw_conf = SMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
smc_bc_conf = SMC_BC_TACS(0x0) | SMC_BC_TCOS(0x4) | SMC_BC_TACC(0xe)
| SMC_BC_TCOH(0x1) | SMC_BC_TAH(0x4)
| SMC_BC_TACP(0x6) | SMC_BC_PMC(0x0);
/* Select and configure the SROMC bank */
s5pc1xx_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
}
int board_init(void)
{
smc9115_pre_init();
gd->bd->bi_arch_number = MACH_TYPE_SMDKC100;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
@ -49,3 +79,12 @@ int checkboard(void)
return 0;
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return rc;
}

12
include/configs/smdkc100.h
View File

@ -83,7 +83,6 @@
#undef CONFIG_CMD_FLASH
#undef CONFIG_CMD_IMLS
#undef CONFIG_CMD_NAND
#undef CONFIG_CMD_NET
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_REGINFO
@ -235,4 +234,15 @@
#define CONFIG_DOS_PARTITION 1
/*
* Ethernet Contoller driver
*/
#ifdef CONFIG_CMD_NET
#define CONFIG_NET_MULTI
#define CONFIG_SMC911X 1 /* we have a SMC9115 on-board */
#define CONFIG_SMC911X_16_BIT 1 /* SMC911X_16_BIT Mode */
#define CONFIG_SMC911X_BASE 0x98800300 /* SMC911X Drive Base */
#define CONFIG_ENV_SROM_BANK 3 /* Select SROM Bank-3 for Ethernet*/
#endif /* CONFIG_CMD_NET */
#endif /* __CONFIG_H */