ppc4xx: Enable device tree support (fdt) on Kilauea per default

This patch enables the fdt support on the AMCC Kilauea eval board.
Additionally now EBC ranges fdt fixup is included to support NOR
FLASH mapping via the Linux physmap_of driver.

This Kilauea port now support booting arch/ppc and arch/powerpc
Linux kernels. The default environment "net_nfs" is for arch/ppc
and "net_nfs_fdt" is for arch/powerpc. In the long run, arch/ppc
support will be removed.

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

diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index d91ee17a909e1a92be2873443e38cd68689c9d75..8767f758810165396573374888307e2e1a0ec6e7 100644 (file)
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -381,6 +381,20 @@ int post_hotkeys_pressed(void)
 #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) */

diff --git a/include/configs/kilauea.h b/include/configs/kilauea.h
index 7858f8319810d0cd3870d20ea7420d5bacd3e1d3..461f8f0591d4fc71f506e147ae74eb4d1e71e355 100644 (file)
--- a/include/configs/kilauea.h
+++ b/include/configs/kilauea.h
@@ -166,12 +166,6 @@
 
 #undef CONFIG_BOOTARGS
 
-#undef USE_LIBFDT
-#ifdef USE_LIBFDT
-/*
- * LIBFDT support is disabled for now since first Linux port is still
- * arch/ppc.
- */
 #define        CONFIG_EXTRA_ENV_SETTINGS                                       \
        "logversion=2\0"                                                \
        "netdev=eth0\0"                                                 \
@@ -184,6 +178,9 @@
                ":${hostname}:${netdev}:off panic=1\0"                  \
        "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
        "net_nfs=tftp 200000 ${bootfile};"                              \
+               "run nfsargs addip addtty;"                             \
+               "bootm 200000\0"                                        \
+       "net_nfs_fdt=tftp 200000 ${bootfile};"                          \
                "tftp ${fdt_addr} ${fdt_file};"                         \
                "run nfsargs addip addtty;"                             \
                "bootm 200000 - ${fdt_addr}\0"                          \
@@ -207,43 +204,8 @@
        "nupdate=nand erase 0 60000;nand write 200000 0 60000;"         \
                "setenv filesize;saveenv\0"                             \
        "nupd=run nload nupdate\0"                                      \
-       ""
-#else
-#define        CONFIG_EXTRA_ENV_SETTINGS                                       \
-       "logversion=2\0"                                                \
-       "netdev=eth0\0"                                                 \
-       "hostname=kilauea\0"                                            \
-       "nfsargs=setenv bootargs root=/dev/nfs rw "                     \
-               "nfsroot=${serverip}:${rootpath}\0"                     \
-       "ramargs=setenv bootargs root=/dev/ram rw\0"                    \
-       "addip=setenv bootargs ${bootargs} "                            \
-               "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"      \
-               ":${hostname}:${netdev}:off panic=1\0"                  \
-       "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
-       "net_nfs=tftp 200000 ${bootfile};"                              \
-               "run nfsargs addip addtty;"                             \
-               "bootm 200000\0"                                        \
-       "flash_nfs=run nfsargs addip addtty;"                           \
-               "bootm ${kernel_addr}\0"                                \
-       "flash_self=run ramargs addip addtty;"                          \
-               "bootm ${kernel_addr} ${ramdisk_addr}\0"                \
-       "rootpath=/opt/eldk/ppc_4xx\0"                                  \
-       "bootfile=kilauea/uImage\0"                                     \
-       "kernel_addr=fc000000\0"                                        \
-       "ramdisk_addr=fc200000\0"                                       \
-       "initrd_high=30000000\0"                                        \
-       "load=tftp 200000 kilauea/u-boot.bin\0"                         \
-       "update=protect off fffa0000 ffffffff;era fffa0000 ffffffff;"   \
-               "cp.b ${fileaddr} fffa0000 ${filesize};"                \
-               "setenv filesize;saveenv\0"                             \
-       "upd=run load update\0"                                         \
-       "nload=tftp 200000 kilauea/u-boot-nand.bin\0"                   \
-       "nupdate=nand erase 0 60000;nand write 200000 0 60000;"         \
-               "setenv filesize;saveenv\0"                             \
-       "nupd=run nload nupdate\0"                                      \
        "pciconfighost=1\0"                                             \
        ""
-#endif
 #define CONFIG_BOOTCOMMAND     "run flash_self"
 
 #define CONFIG_BOOTDELAY       5       /* autoboot after 5 seconds     */
@@ -477,10 +439,8 @@
 
 #endif /* __CONFIG_H */
 
-#ifdef USE_LIBFDT
 /* pass open firmware flat tree */
 #define CONFIG_OF_LIBFDT       1
 #define CONFIG_OF_BOARD_SETUP  1
 
 #define OF_CPU                 "PowerPC,405EX@0"
-#endif