mpc8308rdb: add support for eSDHC MMC controller

Add support for the onboard eSDHC MMC controller. The hardware on the
MPC8308RDB has the following errata:

- ESDHC111: manual asynchronous CMD12 is broken
- DMA is broken (PIO works)
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>

[added include fsl_esdhc header to prevent implicit declarations of
fsl_esdhc_mmc_init() and fdt_fixup_esdhc()]
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>

board/freescale/mpc8308rdb/mpc8308rdb.c

@@ -31,6 +31,7 @@
 #include <mpc83xx.h>
 #include <vsc7385.h>
 #include <netdev.h>
+#include <fsl_esdhc.h>
 #include <asm/io.h>
 #include <asm/fsl_serdes.h>
 #include <asm/fsl_mpc83xx_serdes.h>
@@ -66,6 +67,13 @@ void spi_cs_deactivate(struct spi_slave *slave)
 }
 #endif /* CONFIG_MPC8XXX_SPI */
 
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_init(bd_t *bd)
+{
+	return fsl_esdhc_mmc_init(bd);
+}
+#endif
+
 static u8 read_board_info(void)
 {
 	u8 val8;
@@ -173,6 +181,7 @@ void ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
 	fdt_fixup_dr_usb(blob, bd);
+	fdt_fixup_esdhc(blob, bd);
 }
 #endif
 

include/configs/MPC8308RDB.h

@@ -41,6 +41,20 @@
 #define CONFIG_FIT			1
 #define CONFIG_FIT_VERBOSE		1
 
+#define CONFIG_MMC     1
+
+#ifdef CONFIG_MMC
+#define CONFIG_FSL_ESDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	CONFIG_SYS_MPC83xx_ESDHC_ADDR
+#define CONFIG_SYS_FSL_ERRATUM_ESDHC111
+#define CONFIG_SYS_FSL_ESDHC_USE_PIO
+
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#endif
+
 /*
  * On-board devices
  *