From: Naveen Krishna CH <chnav...@chnaveen.localdomain>
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.nav...@samsung.com>
---
Changes since V1:
1. The CONFIG_BOOTP* and Net config Macros are removed from config header.
Comments from Ben Warren are fixed
2. The GPIO configuration is modified & Macro and Function are renamed.
Comments from Minkyu Kang are fixed
board/samsung/smdkc100/smdkc100.c | 38 +++++++++++++++++++++++++++++++++++++
include/configs/smdkc100.h | 13 +++++++++++-
2 files changed, 50 insertions(+), 1 deletions(-)
diff --git a/board/samsung/smdkc100/smdkc100.c
b/board/samsung/smdkc100/smdkc100.c
index 15a1a27..43af5ea 100644
--- a/board/samsung/smdkc100/smdkc100.c
+++ b/board/samsung/smdkc100/smdkc100.c
@@ -23,10 +23,39 @@
*/
#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/smc.h>
+#include <asm/arch/gpio.h>
+
DECLARE_GLOBAL_DATA_PTR;
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+static void smc9115_pre_init(void)
+{
+ u32 tmp;
+ u32 smc_bw_conf;
+ struct s5pc100_gpio *const gpio =
+ (struct s5pc100_gpio *)S5PC100_GPIO_BASE;
+
+ /* gpio configuration GPK0CON */
+ tmp = __raw_readl(&gpio->gpio_k0.con);
+ tmp &= ~(0xf << CONFIG_ENV_SROM_BANK * 4);
+ tmp |= (0x2 << CONFIG_ENV_SROM_BANK * 4);
+ __raw_writel(tmp, &gpio->gpio_k0.con);
+
+ /* Ethernet needs bus width of 16 bits */
+ smc_bw_conf = SMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
+
+ /* Select and configure the SROMC bank */
+ s5pc1xx_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, SMC_BC_CON);
+}
+
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 +78,12 @@ 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;
+}
diff --git a/include/configs/smdkc100.h b/include/configs/smdkc100.h
index a8ba052..f7cfc5e 100644
--- a/include/configs/smdkc100.h
+++ b/include/configs/smdkc100.h
@@ -83,7 +83,7 @@
#undef CONFIG_CMD_FLASH
#undef CONFIG_CMD_IMLS
#undef CONFIG_CMD_NAND
-#undef CONFIG_CMD_NET
+#define CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_REGINFO
@@ -235,4 +235,15 @@
#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 */
--
1.6.6
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