mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-26 14:40:41 +00:00
39a723452f
Move arch/arm/cpu/armv7/keystone/* -> arch/arm/mach-keystone/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com>
131 lines
2.4 KiB
C
131 lines
2.4 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>
|
|
asm(".arch_extension sec\n\t");
|
|
|
|
static int mon_install(u32 addr, u32 dpsc, u32 freq)
|
|
{
|
|
int result;
|
|
|
|
__asm__ __volatile__ (
|
|
"stmfd r13!, {lr}\n"
|
|
"mov r0, %1\n"
|
|
"mov r1, %2\n"
|
|
"mov r2, %3\n"
|
|
"blx r0\n"
|
|
"ldmfd r13!, {lr}\n"
|
|
: "=&r" (result)
|
|
: "r" (addr), "r" (dpsc), "r" (freq)
|
|
: "cc", "r0", "r1", "r2", "memory");
|
|
return result;
|
|
}
|
|
|
|
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 = clk_get_rate(sys_clk0_6_clk);
|
|
|
|
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)
|
|
; /* forever */;
|
|
}
|
|
|
|
int mon_power_on(int core_id, void *ep)
|
|
{
|
|
int result;
|
|
|
|
asm volatile (
|
|
"stmfd r13!, {lr}\n"
|
|
"mov r1, %1\n"
|
|
"mov r2, %2\n"
|
|
"mov r0, #0\n"
|
|
"smc #0\n"
|
|
"ldmfd r13!, {lr}\n"
|
|
: "=&r" (result)
|
|
: "r" (core_id), "r" (ep)
|
|
: "cc", "r0", "r1", "r2", "memory");
|
|
return result;
|
|
}
|
|
|
|
int mon_power_off(int core_id)
|
|
{
|
|
int result;
|
|
|
|
asm volatile (
|
|
"stmfd r13!, {lr}\n"
|
|
"mov r1, %1\n"
|
|
"mov r0, #1\n"
|
|
"smc #1\n"
|
|
"ldmfd r13!, {lr}\n"
|
|
: "=&r" (result)
|
|
: "r" (core_id)
|
|
: "cc", "r0", "r1", "memory");
|
|
return result;
|
|
}
|
|
|
|
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"
|
|
""
|
|
);
|