mpc83xx: MPC837XEMDS: Fixup eSDHC nodes in device tree

fdt_fixup_esdhc() will either disable or enable eSDHC nodes, and
also will fixup clock-frequency property.

Plus, since DR USB and eSDHC are mutually exclusive, we should
only configure the eSDHC if asked through hwconfig.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>

board/freescale/mpc837xemds/mpc837xemds.c

@@ -11,6 +11,7 @@
  */
 
 #include <common.h>
+#include <hwconfig.h>
 #include <i2c.h>
 #include <asm/io.h>
 #include <asm/fsl_serdes.h>
@@ -18,12 +19,12 @@
 #include <tsec.h>
 #include <libfdt.h>
 #include <fdt_support.h>
+#include <fsl_esdhc.h>
 #include "pci.h"
 #include "../common/pq-mds-pib.h"
 
 int board_early_init_f(void)
 {
-	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
 	u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;
 
 	/* Enable flash write */
@@ -31,18 +32,6 @@ int board_early_init_f(void)
 	/* Clear all of the interrupt of BCSR */
 	bcsr[0xe] = 0xff;
 
-#ifdef CONFIG_MMC
-	/* Set SPI_SD, SER_SD, and IRQ4_WP so that SD signals go through */
-	bcsr[0xc] |= 0x4c;
-
-	/* Set proper bits in SICR to allow SD signals through */
-	clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
-
-	clrsetbits_be32(&im->sysconf.sicrh, (SICRH_GPIO2_E | SICRH_SPI),
-			(SICRH_GPIO2_E_SD | SICRH_SPI_SD));
-
-#endif
-
 #ifdef CONFIG_FSL_SERDES
 	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 	u32 spridr = in_be32(&immr->sysconf.spridr);
@@ -72,6 +61,27 @@ int board_early_init_f(void)
 	return 0;
 }
 
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_init(bd_t *bd)
+{
+	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
+	u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;
+
+	if (!hwconfig("esdhc"))
+		return 0;
+
+	/* Set SPI_SD, SER_SD, and IRQ4_WP so that SD signals go through */
+	bcsr[0xc] |= 0x4c;
+
+	/* Set proper bits in SICR to allow SD signals through */
+	clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
+	clrsetbits_be32(&im->sysconf.sicrh, SICRH_GPIO2_E | SICRH_SPI,
+			SICRH_GPIO2_E_SD | SICRH_SPI_SD);
+
+	return fsl_esdhc_mmc_init(bd);
+}
+#endif
+
 #if defined(CONFIG_TSEC1) || defined(CONFIG_TSEC2)
 int board_eth_init(bd_t *bd)
 {
@@ -322,6 +332,7 @@ void ft_board_setup(void *blob, bd_t *bd)
 	ft_cpu_setup(blob, bd);
 	ft_tsec_fixup(blob, bd);
 	fdt_fixup_dr_usb(blob, bd);
+	fdt_fixup_esdhc(blob, bd);
 #ifdef CONFIG_PCI
 	ft_pci_setup(blob, bd);
 	if (board_pci_host_broken())

include/configs/MPC837XEMDS.h

@@ -111,6 +111,7 @@
 
 #define CONFIG_BOARD_EARLY_INIT_F /* call board_pre_init */
 #define CONFIG_BOARD_EARLY_INIT_R
+#define CONFIG_HWCONFIG
 
 /*
  * IMMR new address