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// SPDX-License-Identifier: GPL-2.0+
/*
* K2HK: secure kernel command file
*
* (C) Copyright 2012-2014
* Texas Instruments Incorporated, <www.ti.com>
*/
#include <common.h>
#include <command.h>
#include <image.h>
#include <mach/mon.h>
asm(".arch_extension sec\n\t");
static int do_mon_install(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
int rcode = 0;
struct image_header *header;
u32 ecrypt_bm_addr = 0;
if (argc < 2)
return CMD_RET_USAGE;
freq = CONFIG_SYS_HZ_CLOCK;
addr = simple_strtoul(argv[1], NULL, 16);
header = (struct image_header *)addr;
if (image_get_magic(header) != IH_MAGIC) {
printf("## Please update monitor image\n");
return -EFAULT;
}
load_addr = image_get_load(header);
size = image_get_data_size(header);
memcpy((void *)load_addr, (void *)(addr + sizeof(struct image_header)),
size);
if (argc >= 3)
ecrypt_bm_addr = simple_strtoul(argv[2], NULL, 16);
rcode = mon_install(load_addr, dpsc_base, freq, ecrypt_bm_addr);
printf("## installed monitor @ 0x%x, freq [%d], status %d\n",
load_addr, freq, rcode);
return 0;
}
U_BOOT_CMD(mon_install, 3, 0, do_mon_install,
"Install boot kernel at 'addr'",
""
);
static void core_spin(void)
{
while (1) {
asm volatile (
"dsb\n"
"isb\n"
"wfi\n"
);
}
}
int do_mon_power(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int rcode = 0, core_id, on;
void (*fn)(void);
fn = core_spin;
if (argc < 3)
return CMD_RET_USAGE;
core_id = simple_strtoul(argv[1], NULL, 16);
on = simple_strtoul(argv[2], NULL, 16);
if (on)
rcode = mon_power_on(core_id, fn);
else
rcode = mon_power_off(core_id);
if (on) {
if (!rcode)
printf("core %d powered on successfully\n", core_id);
else
printf("core %d power on failure\n", core_id);
} else {
printf("core %d powered off successfully\n", core_id);
}
return 0;
}
U_BOOT_CMD(mon_power, 3, 0, do_mon_power,
"Power On/Off secondary core",
"mon_power <coreid> <oper>\n"
"- coreid (1-3) and oper (1 - ON, 0 - OFF)\n"
""
);
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