u-boot/cmd/smccc.c
Michal Simek e2aa078c1c cmd: smccc: Print results in hex instead of dec
Printing return value in HEX instead of DEC. Return values are 64 bit
values which impossible to decode in DEC. For example getting CHIP ID in
dec is quite long.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/9a0278a7da729cb69b7a4d46c5e7eb8c3217c635.1676450712.git.michal.simek@amd.com
2023-03-09 13:15:00 +01:00

71 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018
* Michalis Pappas <mpappas@fastmail.fm>
*/
#include <asm/psci.h>
#include <common.h>
#include <command.h>
#include <linux/arm-smccc.h>
#include <linux/compiler.h>
#include <linux/psci.h>
static int do_call(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct arm_smccc_res res;
unsigned long fid;
unsigned long a1;
unsigned long a2;
unsigned long a3;
unsigned long a4;
unsigned long a5;
unsigned long a6;
unsigned long a7;
if (argc < 2)
return CMD_RET_USAGE;
fid = hextoul(argv[1], NULL);
a1 = argc > 2 ? hextoul(argv[2], NULL) : 0;
a2 = argc > 3 ? hextoul(argv[3], NULL) : 0;
a3 = argc > 4 ? hextoul(argv[4], NULL) : 0;
a4 = argc > 5 ? hextoul(argv[5], NULL) : 0;
a5 = argc > 6 ? hextoul(argv[6], NULL) : 0;
a6 = argc > 7 ? hextoul(argv[7], NULL) : 0;
a7 = argc > 8 ? hextoul(argv[8], NULL) : 0;
if (!strcmp(argv[0], "smc"))
arm_smccc_smc(fid, a1, a2, a3, a4, a5, a6, a7, &res);
else
arm_smccc_hvc(fid, a1, a2, a3, a4, a5, a6, a7, &res);
printf("Res: 0x%lx 0x%lx 0x%lx 0x%lx\n", res.a0, res.a1, res.a2, res.a3);
return 0;
}
#ifdef CONFIG_CMD_SMC
U_BOOT_CMD(
smc, 9, 2, do_call,
"Issue a Secure Monitor Call",
"<fid> [arg1 ... arg6] [id]\n"
" - fid Function ID\n"
" - arg SMC arguments, passed to X1-X6 (default to zero)\n"
" - id Secure OS ID / Session ID, passed to W7 (defaults to zero)\n"
);
#endif
#ifdef CONFIG_CMD_HVC
U_BOOT_CMD(
hvc, 9, 2, do_call,
"Issue a Hypervisor Call",
"<fid> [arg1...arg6] [id]\n"
" - fid Function ID\n"
" - arg HVC arguments, passed to X1-X6 (default to zero)\n"
" - id Session ID, passed to W7 (defaults to zero)\n"
);
#endif