powerpc/86xx: Increase boot map size to 256 MiB

This is what Linux maps on classic PPC during boot, and modern kernel
images don't fit within the current 8 MiB uncompressed limit.

Adjust image load addresses to be above this limit to avoid conflicts.
Signed-off-by: NScott Wood <oss@buserror.net>
Reviewed-by: NYork Sun <york.sun@nxp.com>

include/configs/MPC8610HPCD.h

@@ -477,7 +477,8 @@
  * have to be in the first 8 MB of memory, since this is
  * the maximum mapped by the Linux kernel during initialization.
  */
-#define CONFIG_SYS_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTMAPSZ	(256 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTM_LEN	(256 << 20)	/* Increase max gunzip size */
 
 #if defined(CONFIG_CMD_KGDB)
 #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
@@ -498,7 +499,7 @@
 #define CONFIG_NETMASK		255.255.255.0
 
 /* default location for tftp and bootm */
-#define CONFIG_LOADADDR		1000000
+#define CONFIG_LOADADDR		0x10000000
 
 #undef	CONFIG_BOOTARGS		/* the boot command will set bootargs */
 
@@ -566,9 +567,9 @@
 	"cmp.b $loadaddr " __stringify(CONFIG_SYS_TEXT_BASE)	\
 		" $filesize\0"	\
 "consoledev=ttyS0\0"						\
-"ramdiskaddr=2000000\0"					\
+"ramdiskaddr=0x18000000\0"					\
 "ramdiskfile=8610hpcd/ramdisk.uboot\0"				\
-"fdtaddr=c00000\0"						\
+"fdtaddr=0x17c00000\0"						\
 "fdtfile=8610hpcd/mpc8610_hpcd.dtb\0"				\
 "bdev=sda3\0"					\
 "en-wd=mw.b f8100010 0x08; echo -expect:- 08; md.b f8100010 1\0" \
@@ -604,9 +605,9 @@
 	"netdev=eth0\0"						\
 	"uboot=" __stringify(CONFIG_UBOOTPATH) "\0"		\
 	"consoledev=ttyS0\0"					\
-	"ramdiskaddr=2000000\0"					\
+	"ramdiskaddr=0x18000000\0"				\
 	"ramdiskfile=8610hpcd/ramdisk.uboot\0"			\
-	"fdtaddr=c00000\0"					\
+	"fdtaddr=0x17c00000\0"					\
 	"fdtfile=8610hpcd/mpc8610_hpcd.dtb\0"			\
 	"bdev=sda3\0"
 #endif

include/configs/MPC8641HPCN.h

@@ -637,7 +637,8 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
  * have to be in the first 8 MB of memory, since this is
  * the maximum mapped by the Linux kernel during initialization.
  */
-#define CONFIG_SYS_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTMAPSZ	(256 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTM_LEN	(256 << 20)	/* Increase max gunzip size */
 
 #if defined(CONFIG_CMD_KGDB)
     #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
@@ -664,7 +665,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_NETMASK		255.255.255.0
 
 /* default location for tftp and bootm */
-#define CONFIG_LOADADDR		1000000
+#define CONFIG_LOADADDR		0x10000000
 
 #undef	CONFIG_BOOTARGS		/* the boot command will set bootargs */
 
@@ -685,9 +686,9 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 		"cmp.b $loadaddr " __stringify(CONFIG_SYS_TEXT_BASE)	\
 			" $filesize\0"	\
 	"consoledev=ttyS0\0"						\
-	"ramdiskaddr=2000000\0"						\
+	"ramdiskaddr=0x18000000\0"						\
 	"ramdiskfile=your.ramdisk.u-boot\0"				\
-	"fdtaddr=c00000\0"						\
+	"fdtaddr=0x17c00000\0"						\
 	"fdtfile=mpc8641_hpcn.dtb\0"					\
 	"en-wd=mw.b ffdf0010 0x08; echo -expect:- 08; md.b ffdf0010 1\0"			\
 	"dis-wd=mw.b ffdf0010 0x00; echo -expect:- 00; md.b ffdf0010 1\0" \