karo: tx6ul: defer mmc probing until environment has been loaded

Check the 'baseboard' environment variable before initializing the MMC
interface to prevent error messages on TX6UL-Mainboard which doesn't
support MMC mass storage.

diff --git a/board/karo/tx6/tx6ul.c b/board/karo/tx6/tx6ul.c
index 2061fcf9f945871c2a51d067488935e7d4de8c78..d8595b23b27d55e6b53866f4ee6d59d34a6d8097 100644 (file)
--- a/board/karo/tx6/tx6ul.c
+++ b/board/karo/tx6/tx6ul.c
@@ -592,6 +592,12 @@ int board_mmc_init(bd_t *bis)
 
        debug("%s@%d: \n", __func__, __LINE__);
 
+#ifndef CONFIG_ENV_IS_IN_MMC
+       if (!(gd->flags & GD_FLG_ENV_READY)) {
+               printf("deferred ...");
+               return 0;
+       }
+#endif
        for (i = 0; i < ARRAY_SIZE(tx6ul_esdhc_cfg); i++) {
                struct mmc *mmc;
                struct tx6_esdhc_cfg *cfg = &tx6ul_esdhc_cfg[i];
@@ -1171,6 +1177,20 @@ void lcd_ctrl_init(void *lcdbase)
 #define lcd_enabled 0
 #endif /* CONFIG_LCD */
 
+#ifndef CONFIG_ENV_IS_IN_MMC
+static void tx6_mmc_init(void)
+{
+       puts("MMC:   ");
+       if (board_mmc_init(gd->bd) < 0)
+               cpu_mmc_init(gd->bd);
+       print_mmc_devices(',');
+}
+#else
+static inline void tx6_mmc_init(void)
+{
+}
+#endif
+
 static void stk5_board_init(void)
 {
        int ret;
@@ -1189,6 +1209,7 @@ static void stk5v3_board_init(void)
        debug("%s@%d: \n", __func__, __LINE__);
        stk5_board_init();
        debug("%s@%d: \n", __func__, __LINE__);
+       tx6_mmc_init();
 }
 
 static void stk5v5_board_init(void)
@@ -1196,6 +1217,7 @@ static void stk5v5_board_init(void)
        int ret;
 
        stk5_board_init();
+       tx6_mmc_init();
 
        ret = gpio_request_one(IMX_GPIO_NR(3, 5), GPIOFLAG_OUTPUT_INIT_HIGH,
                        "Flexcan Transceiver");