ppc4xx: update PMC440 board support

- switch to GENERIC_BOARD
- fix env support from eeprom

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>

board/esd/pmc440/cmd_pmc440.c

@@ -347,16 +347,16 @@ int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return 1;
 	}
 
-	base = gd->bd->bi_memsize;
+	base = (u32)gd->ram_size;
 #if defined(CONFIG_LOGBUFFER)
 	base -= LOGBUFF_LEN + LOGBUFF_OVERHEAD;
 #endif
 	/*
-	 * gd->bd->bi_memsize == physical ram size - CONFIG_SYS_MEM_TOP_HIDE
+	 * gd->ram_size == physical ram size - CONFIG_SYS_MEM_TOP_HIDE
 	 */
 	param = base - (pram << 10);
 	printf("PARAM: @%08x\n", param);
-	debug("memsize=0x%08x, base=0x%08x\n", (u32)gd->bd->bi_memsize, base);
+	debug("memsize=0x%08x, base=0x%08x\n", (u32)gd->ram_size, base);
 
 	/* clear entire PA ram */
 	memset((void*)param, 0, (pram << 10));

include/configs/PMC440.h

@@ -29,6 +29,9 @@
 #define CONFIG_SYS_TEXT_BASE	0xFFF90000
 #endif
 
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_DISPLAY_BOARDINFO
+
 #define CONFIG_SYS_CLK_FREQ	33333400
 
 #if 0 /* temporary disabled because OS/9 does not like dcache on startup */
@@ -133,6 +136,7 @@
 #endif
 
 #ifdef CONFIG_ENV_IS_IN_EEPROM
+#define CONFIG_I2C_ENV_EEPROM_BUS	0
 #define CONFIG_ENV_OFFSET		0	/* environment starts at the beginning of the EEPROM */
 #define CONFIG_ENV_SIZE		0x1000	/* 4096 bytes may be used for env vars */
 #endif