47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
|
|
/*
|
|
* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <stdlib.h>
|
|
#include <linux/arm-smccc.h>
|
|
|
|
#define OPTEE_SMC_CHECK_WM_STATUS 0xB200E003
|
|
#define OPTEE_SMC_INIT_WM 0xB200E080
|
|
|
|
#define CMD_RET_SUCCESS 0x00000000
|
|
|
|
static uint32_t check_wm_sts(void)
|
|
{
|
|
struct arm_smccc_res res;
|
|
|
|
arm_smccc_smc(OPTEE_SMC_CHECK_WM_STATUS, 0, 0, 0, 0, 0, 0, 0, &res);
|
|
|
|
return res.a0;
|
|
}
|
|
|
|
static uint32_t init_wm(void)
|
|
{
|
|
struct arm_smccc_res res;
|
|
|
|
arm_smccc_smc(OPTEE_SMC_INIT_WM, 0, 0, 0, 0, 0, 0, 0, &res);
|
|
|
|
return res.a0;
|
|
}
|
|
|
|
static int do_wm_init(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
if (check_wm_sts() == 0)
|
|
printf("WATERMARK: initialize Watermark return 0x%08X\n", init_wm());
|
|
else
|
|
printf("WATERMARK: Watermark is disabled\n");
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
U_BOOT_CMD(watermark_init, CONFIG_SYS_MAXARGS, 0, do_wm_init,
|
|
"initialize watermark\n",
|
|
"watermark_init");
|