mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 15:53:02 +00:00
7af26b1669
The OS function is now always called with the PREP stage. Adjust the remaining bootm OS functions to deal with this correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
/*
|
|
* U-boot - boot.c - misc boot helper functions
|
|
*
|
|
* Copyright (c) 2005-2008 Analog Devices Inc.
|
|
*
|
|
* (C) Copyright 2000-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <image.h>
|
|
#include <asm/blackfin.h>
|
|
|
|
#ifdef SHARED_RESOURCES
|
|
extern void swap_to(int device_id);
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO
|
|
extern void video_stop(void);
|
|
#endif
|
|
|
|
static char *make_command_line(void)
|
|
{
|
|
char *dest = (char *)CONFIG_LINUX_CMDLINE_ADDR;
|
|
char *bootargs = getenv("bootargs");
|
|
|
|
if (bootargs == NULL)
|
|
return NULL;
|
|
|
|
strncpy(dest, bootargs, CONFIG_LINUX_CMDLINE_SIZE);
|
|
dest[CONFIG_LINUX_CMDLINE_SIZE - 1] = 0;
|
|
return dest;
|
|
}
|
|
|
|
extern ulong bfin_poweron_retx;
|
|
|
|
int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
|
|
{
|
|
int (*appl) (char *cmdline);
|
|
char *cmdline;
|
|
|
|
if (flag & BOOTM_STATE_OS_PREP)
|
|
return 0;
|
|
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
|
|
return 1;
|
|
|
|
#ifdef SHARED_RESOURCES
|
|
swap_to(FLASH);
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO
|
|
/* maybe this should be standardized and moved to bootm ... */
|
|
video_stop();
|
|
#endif
|
|
|
|
appl = (int (*)(char *))images->ep;
|
|
|
|
printf("Starting Kernel at = %p\n", appl);
|
|
cmdline = make_command_line();
|
|
icache_disable();
|
|
dcache_disable();
|
|
asm __volatile__(
|
|
"RETX = %[retx];"
|
|
"CALL (%0);"
|
|
:
|
|
: "p"(appl), "q0"(cmdline), [retx] "d"(bfin_poweron_retx)
|
|
);
|
|
/* does not return */
|
|
|
|
return 1;
|
|
}
|