powerpc/82xx: add SDRAM detection for km82xx

[u-boot] / board / keymile / km_arm / km_arm.c

diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index ea5d0db1ca076ebc99c116bc0008c94400690e35..2b2ca393765818a2dc2898d159140834560d3ac8 100644 (file)
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -243,38 +243,51 @@ int misc_init_r(void)
 
 int board_early_init_f(void)
 {
+#if defined(CONFIG_SOFT_I2C)
        u32 tmp;
 
+       /* set the 2 bitbang i2c pins as output gpios */
+       tmp = readl(KW_GPIO0_BASE + 4);
+       writel(tmp & (~KM_KIRKWOOD_SOFT_I2C_GPIOS) , KW_GPIO0_BASE + 4);
+#endif
+
        kirkwood_mpp_conf(kwmpp_config, NULL);
+       return 0;
+}
 
+int board_init(void)
+{
        /*
-        * The FLASH_GPIO_PIN switches between using a
+        * arch number of board
+        */
+       gd->bd->bi_arch_number = MACH_TYPE_KM_KIRKWOOD;
+
+       /* address of boot parameters */
+       gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
+
+       /*
+        * The KM_FLASH_GPIO_PIN switches between using a
         * NAND or a SPI FLASH. Set this pin on start
         * to NAND mode.
         */
-       tmp = readl(KW_GPIO0_BASE);
-       writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE);
-       tmp = readl(KW_GPIO0_BASE + 4);
-       writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE + 4);
+       kw_gpio_set_valid(KM_FLASH_GPIO_PIN, 1);
+       kw_gpio_direction_output(KM_FLASH_GPIO_PIN, 1);
 
 #if defined(CONFIG_SOFT_I2C)
-       /* init the GPIO for I2C Bitbang driver */
+       /*
+        * Reinit the GPIO for I2C Bitbang driver so that the now
+        * available gpio framework is consistent. The calls to
+        * direction output in are not necessary, they are already done in
+        * board_early_init_f
+        */
        kw_gpio_set_valid(KM_KIRKWOOD_SDA_PIN, 1);
        kw_gpio_set_valid(KM_KIRKWOOD_SCL_PIN, 1);
-       kw_gpio_direction_output(KM_KIRKWOOD_SDA_PIN, 0);
-       kw_gpio_direction_output(KM_KIRKWOOD_SCL_PIN, 0);
 #endif
+
 #if defined(CONFIG_SYS_EEPROM_WREN)
        kw_gpio_set_valid(KM_KIRKWOOD_ENV_WP, 38);
        kw_gpio_direction_output(KM_KIRKWOOD_ENV_WP, 1);
 #endif
-       return 0;
-}
-
-int board_init(void)
-{
-       /* address of boot parameters */
-       gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
 
 #if defined(CONFIG_KM_FPGA_CONFIG)
        trigger_fpga_config();