mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-08 08:16:59 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2023 SberDevices, Inc.
|
|
*
|
|
* Author: Alexey Romanov <avromanov@salutedevices.ru>
|
|
*/
|
|
|
|
#ifndef __SM_H__
|
|
#define __SM_H__
|
|
|
|
/*
|
|
* NOTE: UCLASS_SM is designed with the idea that
|
|
* each driver should convert @cmd to some raw
|
|
* value, which is known only for driver, and set this
|
|
* value to the first element of the @args->regs array.
|
|
* Therefore, it is necessary to pass the remaining
|
|
* arguments starting at index = 1. Anyway, driver
|
|
* implementation may vary, so, please, check the specific
|
|
* implementation of the driver you are using.
|
|
*/
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/ptrace.h>
|
|
|
|
struct udevice;
|
|
|
|
/**
|
|
* sm_call - generic SMC call to the secure-monitor
|
|
*
|
|
* @dev: Pointer to UCLASS_SM device
|
|
* @cmd_index: Index of the SMC function ID
|
|
* @smc_ret: Returned value from secure world
|
|
* @args: SMC arguments
|
|
*
|
|
* @return: 0 on success, a negative value on error
|
|
*/
|
|
int sm_call(struct udevice *dev, u32 cmd, s32 *ret, struct pt_regs *args);
|
|
|
|
/**
|
|
* sm_call_read - retrieve data from secure-monitor
|
|
*
|
|
* @dev: Pointer to UCLASS_MESON_SM device
|
|
* @buffer: Buffer to store the retrieved data
|
|
* @size: Size of the buffer
|
|
* @cmd: Index of the SMC function ID
|
|
* @args: SMC arguments
|
|
*
|
|
* @return: size of read data on success, a negative value on error
|
|
*/
|
|
int sm_call_read(struct udevice *dev, void *buffer, size_t size,
|
|
u32 cmd, struct pt_regs *args);
|
|
|
|
/**
|
|
* sm_call_write - send data to secure-monitor
|
|
*
|
|
* @dev: Pointer to UCLASS_SM device
|
|
* @buffer: Buffer containing data to send
|
|
* @size: Size of the buffer
|
|
* @cmd: Index of the SMC function ID
|
|
* @args: SMC arguments
|
|
*
|
|
* @return: size of sent data on success, a negative value on error
|
|
*/
|
|
int sm_call_write(struct udevice *dev, void *buffer, size_t size,
|
|
u32 cmd, struct pt_regs *args);
|
|
|
|
#endif /* __SM_H__ */
|