[U-Boot] [PATCH v2] SMDK5250: Add ethernet support

[Simon Glass]

On Thu, Feb 9, 2012 at 3:26 AM, Chander Kashyap
<chander.kashyap at linaro.org> wrote:
> This patch enable support for SMC911X based ethernet device.
>
> Signed-off-by: Chander Kashyap <chander.kashyap at linaro.org>

Acked-by: Simon Glass <sjg at chromium.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
>
> --
> 1.7.5.4
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot