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TQM85xx: Support for Flat Device Tree

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This patch adds support for Linux kernels using the Flat Device Tree.
It also re-defines the default environment settings for booting Linux
with the FDT blob.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
This commit is contained in:
Wolfgang Grandegger 2008-06-05 13:12:06 +02:00 committed by Andrew Fleming-AFLEMING
parent d9ee843d54
commit 2599135320
3 changed files with 64 additions and 13 deletions
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3
Makefile
View File

@ -2238,8 +2238,7 @@ TQM8560_config: unconfig
echo "#define CONFIG_MPC$${CTYPE}">>$(obj)include/config.h; \
echo "#define CONFIG_TQM$${CTYPE}">>$(obj)include/config.h; \
echo "#define CONFIG_HOSTNAME tqm$${CTYPE}">>$(obj)include/config.h; \
echo "#define CONFIG_BOARDNAME \"TQM$${CTYPE}\"">>$(obj)include/config.h; \
echo "#define CFG_BOOTFILE_PATH \"/tftpboot/tqm$${CTYPE}/uImage\"">>$(obj)include/config.h
echo "#define CONFIG_BOARDNAME \"TQM$${CTYPE}\"">>$(obj)include/config.h;
@$(MKCONFIG) -a TQM85xx ppc mpc85xx tqm85xx tqc
#########################################################################

24
board/tqc/tqm85xx/tqm85xx.c
View File

@ -34,6 +34,8 @@
#include <asm/io.h>
#include <ioports.h>
#include <flash.h>
#include <libfdt.h>
#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
@ -479,6 +481,28 @@ void pci_init_board (void)
#endif /* CONFIG_PCI */
}
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup (void *blob, bd_t *bd)
{
int node, tmp[2];
const char *path;
ft_cpu_setup (blob, bd);
node = fdt_path_offset (blob, "/aliases");
tmp[0] = 0;
if (node >= 0) {
#ifdef CONFIG_PCI
path = fdt_getprop (blob, node, "pci0", NULL);
if (path) {
tmp[1] = hose.last_busno - hose.first_busno;
do_fixup_by_path (blob, path, "bus-range", &tmp, 8, 1);
}
#endif
}
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_R
int board_early_init_r (void)
{

50
include/configs/TQM85xx.h
View File

@ -201,6 +201,11 @@
#define CFG_PROMPT_HUSH_PS2 "> "
#endif
/* pass open firmware flat tree */
#define CONFIG_OF_LIBFDT 1
#define CONFIG_OF_BOARD_SETUP 1
#define CONFIG_OF_STDOUT_VIA_ALIAS 1
/* CAN */
#ifdef CONFIG_CAN_DRIVER
#define CFG_CAN_BASE 0xE3000000 /* CAN base address */
@ -463,10 +468,26 @@
#undef CONFIG_BOOTARGS /* the boot command will set bootargs */
/*
* Setup some board specific values for the default environment variables
*/
#ifdef CONFIG_CPM2
#define CFG_ENV_CONSDEV "consdev=ttyCPM0\0"
#else
#define CFG_ENV_CONSDEV "consdev=ttyS0\0"
#endif
#define CFG_ENV_FDT_FILE "fdt_file="MK_STR(CONFIG_HOSTNAME)"/" \
MK_STR(CONFIG_HOSTNAME)".dtb\0"
#define CFG_ENV_BOOTFILE "bootfile="MK_STR(CONFIG_HOSTNAME)"/uImage\0"
#define CFG_ENV_UBOOT "uboot="MK_STR(CONFIG_HOSTNAME)"/u-boot.bin\0" \
"uboot_addr="MK_STR(TEXT_BASE)"\0"
#define CONFIG_EXTRA_ENV_SETTINGS \
"bootfile="CFG_BOOTFILE_PATH"\0" \
CFG_ENV_BOOTFILE \
CFG_ENV_FDT_FILE \
CFG_ENV_CONSDEV \
"netdev=eth0\0" \
"consdev=ttyS0\0" \
"nfsargs=setenv bootargs root=/dev/nfs rw " \
"nfsroot=$serverip:$rootpath\0" \
"ramargs=setenv bootargs root=/dev/ram rw\0" \
@ -476,17 +497,24 @@
"addcons=setenv bootargs $bootargs " \
"console=$consdev,$baudrate\0" \
"flash_nfs=run nfsargs addip addcons;" \
"bootm $kernel_addr\0" \
"bootm $kernel_addr - $fdt_addr\0" \
"flash_self=run ramargs addip addcons;" \
"bootm $kernel_addr $ramdisk_addr\0" \
"net_nfs=tftp $loadaddr $bootfile;" \
"run nfsargs addip addcons;bootm\0" \
"bootm $kernel_addr $ramdisk_addr $fdt_addr\0" \
"net_nfs=tftp $kernel_addr_r $bootfile;" \
"tftp $fdt_addr_r $fdt_file;" \
"run nfsargs addip addcons;" \
"bootm $kernel_addr_r - $fdt_addr_r\0" \
"rootpath=/opt/eldk/ppc_85xx\0" \
"kernel_addr=FE000000\0" \
"ramdisk_addr=FE180000\0" \
"load=tftp 100000 /tftpboot/$hostname/u-boot.bin\0" \
"update=protect off fffc0000 ffffffff;era fffc0000 ffffffff;" \
"cp.b 100000 fffc0000 40000;" \
"fdt_addr_r=900000\0" \
"kernel_addr_r=1000000\0" \
"fdt_addr=ffec0000\0" \
"kernel_addr=ffd00000\0" \
"ramdisk_addr=ff800000\0" \
CFG_ENV_UBOOT \
"load=tftp 100000 $uboot\0" \
"update=protect off $uboot_addr +$filesize;" \
"erase $uboot_addr +$filesize;" \
"cp.b 100000 $uboot_addr $filesize;" \
"setenv filesize;saveenv\0" \
"upd=run load update\0" \
""