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authorChander Kashyap <chander.kashyap@linaro.org>2012-02-09 01:26:19 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-02-12 10:11:30 +0100
commitbf936210dacaaf5d712178122b31c5f1ae46b42f (patch)
treed8db007e3186f4605bfbf397403bbd134e15cad5 /board/samsung
parent81e352032ccbf00e756083adc70d418a6ea80b14 (diff)
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SMDK5250: Add ethernet support
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>
Diffstat (limited to 'board/samsung')
-rw-r--r--board/samsung/smdk5250/smdk5250.c94
1 files changed, 94 insertions, 0 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)
{