mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 13:56:30 +00:00
86a20fb920
This moves the Blackfin-common bootldr command out of the BF537-STAMP specific board directory and into the common directory so that all Blackfin boards may utilize it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
|
|
* U-boot - bootldr.c
|
|
*
|
|
* Copyright (c) 2005-2008 Analog Devices Inc.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <command.h>
|
|
|
|
#include <asm/blackfin.h>
|
|
#include <asm/mach-common/bits/bootrom.h>
|
|
|
|
/*
|
|
* the bootldr command loads an address, checks to see if there
|
|
* is a Boot stream that the on-chip BOOTROM can understand,
|
|
* and loads it via the BOOTROM Callback. It is possible
|
|
* to also add booting from SPI, or TWI, but this function does
|
|
* not currently support that.
|
|
*/
|
|
|
|
int do_bootldr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
|
{
|
|
void *addr;
|
|
uint32_t *data;
|
|
|
|
/* Get the address */
|
|
if (argc < 2)
|
|
addr = (void *)load_addr;
|
|
else
|
|
addr = (void *)simple_strtoul(argv[1], NULL, 16);
|
|
|
|
/* Check if it is a LDR file */
|
|
data = addr;
|
|
#if defined(__ADSPBF54x__) || defined(__ADSPBF52x__)
|
|
if ((*data & 0xFF000000) == 0xAD000000 && data[2] == 0x00000000) {
|
|
#else
|
|
if (*data == 0xFF800060 || *data == 0xFF800040 || *data == 0xFF800020) {
|
|
#endif
|
|
/* We want to boot from FLASH or SDRAM */
|
|
printf("## Booting ldr image at 0x%p ...\n", addr);
|
|
|
|
icache_disable();
|
|
dcache_disable();
|
|
|
|
__asm__(
|
|
"jump (%1);"
|
|
:
|
|
: "q7" (addr), "a" (_BOOTROM_MEMBOOT));
|
|
} else
|
|
printf("## No ldr image at address 0x%p\n", addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(bootldr, 2, 0, do_bootldr,
|
|
"bootldr - boot ldr image from memory\n",
|
|
"[addr]\n"
|
|
" - boot ldr image stored in memory\n");
|