mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
wanwei.jiang
9be26bf0bd
PD#SWPL-68638 Problem: porting socinfo driver Solution: 1. porting socinfo driver 2. modify code style 3. disabel config becasue not for android Verify: s4d Change-Id: I56a44e7d67df5615f50b49b616c8c56eb4fa4e24 Signed-off-by: wanwei.jiang <wanwei.jiang@amlogic.com>
91 lines
2.0 KiB
C
91 lines
2.0 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/fs.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/platform_device.h>
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#include <linux/err.h>
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#include <linux/scatterlist.h>
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#include <linux/module.h>
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#include <linux/uaccess.h>
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#include <linux/ioctl.h>
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#include <linux/of.h>
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#include <linux/of_reserved_mem.h>
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#include <linux/cma.h>
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#include <linux/sysfs.h>
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#include <linux/random.h>
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#include <linux/amlogic/secmon.h>
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#include <linux/arm-smccc.h>
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#include "soc_info.h"
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extern void __iomem *socinfo_sharemem_base;
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int auth_region_set(void *auth_input)
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{
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long ret;
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struct arm_smccc_res res;
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socinfo_sharemem_base = get_meson_sm_input_base();
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if (!socinfo_sharemem_base)
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return -1;
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meson_sm_mutex_lock();
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memcpy((void *)socinfo_sharemem_base,
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auth_input, sizeof(struct authnt_region) + sizeof(uint32_t));
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asm __volatile__("" : : : "memory");
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arm_smccc_smc(auth_reg_ops_cmd, AUTH_REG_SET_IDX, 0,
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0, 0, 0, 0, 0, &res);
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meson_sm_mutex_unlock();
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ret = res.a0;
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if (!ret)
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return -1;
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else
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return 0;
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}
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int auth_region_get_all(void *auth_input)
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{
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long ret;
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struct arm_smccc_res res;
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u32 data;
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socinfo_sharemem_base = get_meson_sm_output_base();
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if (!socinfo_sharemem_base)
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return -1;
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meson_sm_mutex_lock();
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asm __volatile__("" : : : "memory");
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arm_smccc_smc(auth_reg_ops_cmd, AUTH_REG_GET_ALL, 0,
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0, 0, 0, 0, 0, &res);
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ret = res.a0;
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if (ret) {
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data = *(uint32_t *)socinfo_sharemem_base;
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if (((data & 0xffff) <= AUTH_REG_NUM) &&
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(data >> 16 == AUTH_REG_MAGIC))
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memcpy((void *)auth_input, (void *)socinfo_sharemem_base, ret);
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}
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meson_sm_mutex_unlock();
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if (!ret)
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return -1;
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else
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return 0;
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}
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int auth_region_rst(void)
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{
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long ret;
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struct arm_smccc_res res;
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asm __volatile__("" : : : "memory");
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arm_smccc_smc(auth_reg_ops_cmd, AUTH_REG_SET_RST, 0,
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0, 0, 0, 0, 0, &res);
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ret = res.a0;
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if (!ret)
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return -1;
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else
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return 0;
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}
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