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bootm: Move to using a function pointer table for the boot os function 

This removes a bit of code and makes it easier for the upcoming sub bootm
command support to call into the proper OS specific handler.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Kumar Gala 2008-10-21 17:25:44 -05:00 committed by Wolfgang Denk
parent d35c451d6c
commit be08315933
1 changed files with 31 additions and 37 deletions
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68
common/cmd_bootm.c
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@ -119,6 +119,22 @@ int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
static boot_os_fn do_bootm_integrity;
#endif
boot_os_fn * boot_os[] = {
[IH_OS_LINUX] = do_bootm_linux,
[IH_OS_NETBSD] = do_bootm_netbsd,
#ifdef CONFIG_LYNXKDI
[IH_OS_LYNXOS] = do_bootm_lynxkdi,
#endif
[IH_OS_RTEMS] = do_bootm_rtems,
#if defined(CONFIG_CMD_ELF)
[IH_OS_VXWORKS] = do_bootm_vxworks,
[IH_OS_QNX] = do_bootm_qnxelf,
#endif
#ifdef CONFIG_INTEGRITY
[IH_OS_INTEGRITY] = do_bootm_integrity,
#endif
};
ulong load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */
static bootm_headers_t images; /* pointers to os/initrd/fdt images */
@ -386,12 +402,22 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
/*******************************************************************/
/* bootm - boot application image from image in memory */
/*******************************************************************/
static int relocated = 0;
int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong iflag;
ulong load_end = 0;
int ret;
boot_os_fn *boot_fn;
/* relocate boot function table */
if (!relocated) {
int i;
for (i = 0; i < ARRAY_SIZE(boot_os); i++)
boot_os[i] += gd->reloc_off;
relocated = 1;
}
if (bootm_start(cmdtp, flag, argc, argv))
return 1;
@ -454,45 +480,13 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
show_boot_progress (8);
switch (images.os.os) {
default: /* handled by (original) Linux case */
case IH_OS_LINUX:
#ifdef CONFIG_SILENT_CONSOLE
fixup_silent_linux();
#endif
do_bootm_linux (0, argc, argv, &images);
break;
case IH_OS_NETBSD:
do_bootm_netbsd (0, argc, argv, &images);
break;
#ifdef CONFIG_LYNXKDI
case IH_OS_LYNXOS:
do_bootm_lynxkdi (0, argc, argv, &images);
break;
if (images.os.os == IH_OS_LINUX)
fixup_silent_linux();
#endif
case IH_OS_RTEMS:
do_bootm_rtems (0, argc, argv, &images);
break;
#if defined(CONFIG_CMD_ELF)
case IH_OS_VXWORKS:
do_bootm_vxworks (0, argc, argv, &images);
break;
case IH_OS_QNX:
do_bootm_qnxelf (0, argc, argv, &images);
break;
#endif
#ifdef CONFIG_INTEGRITY
case IH_OS_INTEGRITY:
do_bootm_integrity (0, argc, argv, &images);
break;
#endif
}
boot_fn = boot_os[images.os.os];
boot_fn(0, argc, argv, &images);
show_boot_progress (-9);
#ifdef DEBUG