From 80522dc8369a89938369fbcee572e662373bc9a3 Mon Sep 17 00:00:00 2001
From: Andy Fleming <afleming@freescale.com>
Date: Thu, 30 Oct 2008 16:51:33 -0500
Subject: [PATCH] 85xx: Add eSDHC support for 8536 DS

Signed-off-by: Andy Fleming <afleming@freescale.com>
---
 board/freescale/mpc8536ds/mpc8536ds.c | 14 ++++++++++++++
 cpu/mpc85xx/cpu.c                     | 15 +++++++++++++++
 include/asm-ppc/immap_85xx.h          |  3 +++
 include/configs/MPC8536DS.h           | 14 ++++++++++++++
 4 files changed, 46 insertions(+)

diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c
index bddc78f3b..31c1e1503 100644
--- a/board/freescale/mpc8536ds/mpc8536ds.c
+++ b/board/freescale/mpc8536ds/mpc8536ds.c
@@ -44,6 +44,20 @@
 
 phys_size_t fixed_sdram(void);
 
+int board_early_init_f (void)
+{
+#ifdef CONFIG_MMC
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+	setbits_be32(&gur->pmuxcr,
+			(MPC85xx_PMUXCR_SD_DATA |
+			 MPC85xx_PMUXCR_SDHC_CD |
+			 MPC85xx_PMUXCR_SDHC_WP));
+
+#endif
+	return 0;
+}
+
 int checkboard (void)
 {
 	printf ("Board: MPC8536DS, System ID: 0x%02x, "
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index c9598fade..7c50c2fea 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -31,6 +31,7 @@
 #include <command.h>
 #include <tsec.h>
 #include <netdev.h>
+#include <fsl_esdhc.h>
 #include <asm/cache.h>
 #include <asm/io.h>
 
@@ -394,5 +395,19 @@ int cpu_eth_init(bd_t *bis)
 #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC)
 	tsec_standard_init(bis);
 #endif
+
 	return 0;
 }
+
+/*
+ * Initializes on-chip MMC controllers.
+ * to override, implement board_mmc_init()
+ */
+int cpu_mmc_init(bd_t *bis)
+{
+#ifdef CONFIG_FSL_ESDHC
+	return fsl_esdhc_mmc_init(bis);
+#else
+	return 0;
+#endif
+}
diff --git a/include/asm-ppc/immap_85xx.h b/include/asm-ppc/immap_85xx.h
index ed8ddeda1..7b97fe0bd 100644
--- a/include/asm-ppc/immap_85xx.h
+++ b/include/asm-ppc/immap_85xx.h
@@ -1614,6 +1614,9 @@ typedef struct ccsr_gur {
 	uint	gpindr;		/* 0xe0050 - General-purpose input data register */
 	char	res5[12];
 	uint	pmuxcr;		/* 0xe0060 - Alternate function signal multiplex control */
+#define MPC85xx_PMUXCR_SD_DATA		0x80000000
+#define MPC85xx_PMUXCR_SDHC_CD		0x40000000
+#define MPC85xx_PMUXCR_SDHC_WP		0x20000000
 	char	res6[12];
 	uint	devdisr;	/* 0xe0070 - Device disable control */
 #define MPC85xx_DEVDISR_PCI1		0x80000000
diff --git a/include/configs/MPC8536DS.h b/include/configs/MPC8536DS.h
index e379d5327..bbb448d55 100644
--- a/include/configs/MPC8536DS.h
+++ b/include/configs/MPC8536DS.h
@@ -72,6 +72,8 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_L2_CACHE			/* toggle L2 cache */
 #define CONFIG_BTB			/* toggle branch predition */
 
+#define CONFIG_BOARD_EARLY_INIT_F	1	/* Call board_pre_init */
+
 #define CONFIG_ENABLE_36BIT_PHYS	1
 
 #define CONFIG_SYS_MEMTEST_START	0x00000000	/* memtest works on */
@@ -528,6 +530,18 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 
 #undef CONFIG_WATCHDOG			/* watchdog disabled */
 
+#define CONFIG_MMC     1
+
+#ifdef CONFIG_MMC
+#define CONFIG_FSL_ESDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	CONFIG_SYS_MPC85xx_ESDHC_ADDR
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#endif
+
 /*
  * Miscellaneous configurable options
  */