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/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
/* Allow for arch specific config before we boot */
static int __arch_auxiliary_core_up(u32 core_id, u32 stack, u32 pc)
{
/* please define platform specific arch_auxiliary_core_up() */
return CMD_RET_FAILURE;
}
int arch_auxiliary_core_up(u32 core_id, u32 stack, u32 pc)
__attribute__((weak, alias("__arch_auxiliary_core_up")));
/* Allow for arch specific config before we boot */
static int __arch_auxiliary_core_check_up(u32 core_id)
{
/* please define platform specific arch_auxiliary_core_check_up() */
return 0;
}
int arch_auxiliary_core_check_up(u32 core_id)
__attribute__((weak, alias("__arch_auxiliary_core_check_up")));
/*
* To i.MX6SX and i.MX7D, the image supported by bootaux needs
* the reset vector at the head for the image, with SP and PC
* as the first two words.
*/
int do_bootaux(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
u32 stack, pc;
ulong addr;
int ret, up;
if (argc < 2)
return CMD_RET_USAGE;
up = arch_auxiliary_core_check_up(0);
if (up) {
printf("## Auxiliary core is already up\n");
return CMD_RET_SUCCESS;
}
addr = simple_strtoul(argv[1], NULL, 16);
/* Assume binary file with vector table at the beginning */
stack = *(u32 *)addr;
pc = *(u32 *)(addr + 4);
printf("## Starting auxiliary core at 0x%08X ...\n", pc);
ret = arch_auxiliary_core_up(0, stack, pc);
if (ret)
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
bootaux, CONFIG_SYS_MAXARGS, 1, do_bootaux,
"Start auxiliary core",
""
);
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