u-boot/arch/arm/mach-keystone/cmd_mon.c
Tom Rini aadd3360e6 ARM: keystone2: Split monitor code / command code
When we switch to including all linker lists in SPL it is important
to not include commands as that may lead to link errors due to other
things we have already discarded.  In this case, we split the code for
supporting the monitor out from the code for loading it.

Cc: Vitaly Andrianov <vitalya@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-16 15:03:15 -04:00

87 lines
1.6 KiB
C

/*
* K2HK: secure kernel command file
*
* (C) Copyright 2012-2014
* Texas Instruments Incorporated, <www.ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <mach/mon.h>
asm(".arch_extension sec\n\t");
static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
u32 addr, dpsc_base = 0x1E80000, freq;
int rcode = 0;
if (argc < 2)
return CMD_RET_USAGE;
freq = CONFIG_SYS_HZ_CLOCK;
addr = simple_strtoul(argv[1], NULL, 16);
rcode = mon_install(addr, dpsc_base, freq);
printf("## installed monitor, freq [%d], status %d\n",
freq, rcode);
return 0;
}
U_BOOT_CMD(mon_install, 2, 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(cmd_tbl_t *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"
""
);