mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
Zhongfu Luo
dcb4d77233
PD#SWPL-104257 Problem: defendkey: need to porting defendkey drvier Solution: porting defendkey drvier Verify: G12B/SM1 Change-Id: I05dc99435d92fcb2199fb2ea857a0171cee5b69e Signed-off-by: Zhongfu Luo <zhongfu.luo@amlogic.com>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#include <linux/cdev.h>
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/arm-smccc.h>
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#include <linux/io.h>
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#include "defendkey.h"
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int aml_is_secure_set(void __iomem *reg_base, unsigned int mask)
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{
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int ret;
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/* note: c2 secure boot flag: sysctrl_sec_status_reg1 bit0
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* t5d secure boot flag: AO_SEC_SD_CFG10: bit4
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*/
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if (mask) {
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ret = readl(reg_base + 0x00) & mask;
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} else {
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/*t5d,t5 */
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/*AO_SEC_SD_CFG10: bit4 secure boot enable*/
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ret = (readl(reg_base + 0x00) >> 4) & 0x1;
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}
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return ret;
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}
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unsigned long aml_sec_boot_check(unsigned long type,
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unsigned long buffer,
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unsigned long length,
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unsigned long option)
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{
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struct arm_smccc_res res;
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asm __volatile__("" : : : "memory");
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do {
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arm_smccc_smc((unsigned long)AML_DATA_PROCESS,
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(unsigned long)type,
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(unsigned long)buffer,
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(unsigned long)length,
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(unsigned long)option,
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0, 0, 0, &res);
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} while (0);
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return res.a0;
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}
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