r0p7734 board stores away MAC address in EEPROM. This sets an MAC address to reading, environment variable from an EEPROM by supporting I2C.
Signed-off-by: Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com --- board/renesas/r0p7734/r0p7734.c | 19 ++++++++++++++++++- include/configs/r0p7734.h | 16 ++++++++++++++++ 2 files changed, 34 insertions(+), 1 deletions(-)
diff --git a/board/renesas/r0p7734/r0p7734.c b/board/renesas/r0p7734/r0p7734.c index 80f4329..656b9ee 100644 --- a/board/renesas/r0p7734/r0p7734.c +++ b/board/renesas/r0p7734/r0p7734.c @@ -24,6 +24,7 @@ #include <common.h> #include <asm/io.h> #include <asm/processor.h> +#include <i2c.h> #include <netdev.h>
DECLARE_GLOBAL_DATA_PTR; @@ -50,11 +51,28 @@ int checkboard(void)
int board_init(void) { + u8 mac[6]; + char env_mac[17]; + int i; + #if defined(CONFIG_SH_ETHER) u32 r = readl(MSTPSR1); if (r & MSTPSR1_GETHER) writel((r & ~MSTPSR1_GETHER), MSTPCR1); #endif + + /* Read MAC address */ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + i2c_set_bus_num(CONFIG_SYS_I2C_MODULE); /* Use I2C 0 */ + + i2c_read(0x50, 0x10, 0, mac, 6); + + /* Set MAC address */ + printf("%02X:%02X:%02X:%02X:%02X:%02X\n", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + sprintf(env_mac, "%02X:%02X:%02X:%02X:%02X:%02X", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + return 0; }
@@ -75,4 +93,3 @@ int board_eth_init(bd_t *bis) return rc; } #endif - diff --git a/include/configs/r0p7734.h b/include/configs/r0p7734.h index d73cc4d..22c1ef7 100644 --- a/include/configs/r0p7734.h +++ b/include/configs/r0p7734.h @@ -34,6 +34,7 @@ #define CONFIG_400MHZ_MODE 1 /* #define CONFIG_533MHZ_MODE 1 */
+#define BOARD_LATE_INIT 1 #define CONFIG_SYS_TEXT_BASE 0x8FFC0000
#define CONFIG_CMD_FLASH @@ -53,6 +54,21 @@ #define CONFIG_VERSION_VARIABLE #undef CONFIG_SHOW_BOOT_PROGRESS
+/* I2C */ +#define CONFIG_CMD_I2C +#define CONFIG_SH_SH7734_I2C 1 +#define CONFIG_HARD_I2C 1 +#define CONFIG_I2C_MULTI_BUS 1 +#define CONFIG_SYS_MAX_I2C_BUS 2 +#define CONFIG_SYS_I2C_MODULE 0 +#define CONFIG_SYS_I2C_SPEED 100000 /* 100 kHz */ +#define CONFIG_SYS_I2C_SLAVE 0x50 +#define CONFIG_SH_I2C_DATA_HIGH 4 +#define CONFIG_SH_I2C_DATA_LOW 5 +#define CONFIG_SH_I2C_CLOCK 500000000 +#define CONFIG_SH_I2C_BASE0 0xFFC70000 +#define CONFIG_SH_I2C_BASE1 0xFFC71000 + /* Ether */ #define CONFIG_SH_ETHER 1 #define CONFIG_SH_ETHER_USE_PORT (0)