mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
d859c61139
As BSEC is secure aware, all register access need to be done by TF-A for TRUSTED boot chain, when U-Boot is executed in normal world. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
|
|
/*
|
|
* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
|
|
*/
|
|
|
|
#ifndef __STM32MP1_SMC_H__
|
|
#define __STM32MP1_SMC_H__
|
|
|
|
#include <linux/arm-smccc.h>
|
|
|
|
/*
|
|
* SMC function IDs for STM32 Service queries
|
|
* STM32 SMC services use the space between 0x82000000 and 0x8200FFFF
|
|
* like this is defined in SMC calling Convention by ARM
|
|
* for SiP (silicon Partner)
|
|
* http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
|
|
*/
|
|
#define STM32_SMC_VERSION 0x82000000
|
|
|
|
/* Secure Service access from Non-secure */
|
|
#define STM32_SMC_BSEC 0x82001003
|
|
|
|
/* Service for BSEC */
|
|
#define STM32_SMC_READ_SHADOW 0x01
|
|
#define STM32_SMC_PROG_OTP 0x02
|
|
#define STM32_SMC_WRITE_SHADOW 0x03
|
|
#define STM32_SMC_READ_OTP 0x04
|
|
#define STM32_SMC_READ_ALL 0x05
|
|
#define STM32_SMC_WRITE_ALL 0x06
|
|
|
|
/* SMC error codes */
|
|
#define STM32_SMC_OK 0x0
|
|
#define STM32_SMC_NOT_SUPPORTED -1
|
|
#define STM32_SMC_FAILED -2
|
|
#define STM32_SMC_INVALID_PARAMS -3
|
|
|
|
#define stm32_smc_exec(svc, op, data1, data2) \
|
|
stm32_smc(svc, op, data1, data2, NULL)
|
|
|
|
#ifdef CONFIG_ARM_SMCCC
|
|
static inline u32 stm32_smc(u32 svc, u8 op, u32 data1, u32 data2, u32 *result)
|
|
{
|
|
struct arm_smccc_res res;
|
|
|
|
arm_smccc_smc(svc, op, data1, data2, 0, 0, 0, 0, &res);
|
|
|
|
if (res.a0) {
|
|
pr_err("%s: Failed to exec in secure mode (err = %ld)\n",
|
|
__func__, res.a0);
|
|
return -EINVAL;
|
|
}
|
|
if (result)
|
|
*result = (u32)res.a1;
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static inline u32 stm32_smc(u32 svc, u8 op, u32 data1, u32 data2, u32 *result)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif /* __STM32MP1_SMC_H__ */
|