This patch enable support for SMC911X based ethernet device.
Signed-off-by: Chander Kashyap chander.kashyap@linaro.org --- Changes in v2: - As Simon pointed smc9115_pre_init() is moved inside in board_eth_init() in smc911x_initialize - Removed CONFIG_ETHADDR and CONFIG_NET_MULTI defines.
board/samsung/smdk5250/smdk5250.c | 94 +++++++++++++++++++++++++++++++++++++ include/configs/smdk5250.h | 11 ++++- 2 files changed, 103 insertions(+), 2 deletions(-)
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index 04c863a..928c08f 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -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) { diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h index f54d7ac..9659f9e 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -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