ppc4xx: Add fdt support to Prodrive alpr

Since this board will probably be ported to arch/powerpc in the
near future, we add device tree support now. This way we are
"ready" for arch/powerpc from now on.

Signed-off-by: Stefan Roese <sr@denx.de>

board/prodrive/alpr/alpr.c

@@ -23,10 +23,12 @@
 
 
 #include <common.h>
-#include <asm/processor.h>
+#include <libfdt.h>
+#include <fdt_support.h>
 #include <spd_sdram.h>
 #include <ppc4xx_enet.h>
 #include <miiphy.h>
+#include <asm/processor.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -315,3 +317,24 @@ int post_hotkeys_pressed(void)
 	return (ctrlc());
 }
 #endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	u32 val[4];
+	int rc;
+
+	ft_cpu_setup(blob, bd);
+
+	/* Fixup NOR mapping */
+	val[0] = 0;				/* chip select number */
+	val[1] = 0;				/* always 0 */
+	val[2] = gd->bd->bi_flashstart;
+	val[3] = gd->bd->bi_flashsize;
+	rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
+				  val, sizeof(val), 1);
+	if (rc)
+		printf("Unable to update property NOR mapping, err=%s\n",
+		       fdt_strerror(rc));
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */

include/configs/alpr.h

@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2006-2007
+ * (C) Copyright 2006-2008
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
@@ -145,6 +145,8 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS					\
 	"netdev=eth3\0"							\
 	"hostname=alpr\0"						\
+	"fdt_file=alpr/alpr.dtb\0"					\
+	"fdt_addr=400000\0"						\
 	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
 		"nfsroot=${serverip}:${rootpath} ${init}\0"		\
 	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
@@ -159,6 +161,10 @@
 		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
 	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"     \
 	        "bootm\0"						\
+	"net_nfs_fdt=tftp 200000 ${bootfile};"				\
+		"tftp ${fdt_addr} ${fdt_file};"				\
+		"run nfsargs addip addtty;"				\
+		"bootm 200000 - ${fdt_addr}\0"				\
 	"rootpath=/opt/projects/alpr/nfs_root\0"			\
 	"bootfile=/alpr/uImage\0"					\
 	"kernel_addr=fff00000\0"					\
@@ -371,4 +377,9 @@
 #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
 #define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
 #endif
+
+/* pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT	1
+#define CONFIG_OF_BOARD_SETUP	1
+
 #endif	/* __CONFIG_H */