You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.0 KiB
100 lines
2.0 KiB
/*
|
|
* Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <common/debug.h>
|
|
#include <common/runtime_svc.h>
|
|
#include <lib/mmio.h>
|
|
#include <platform_def.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "aml_private.h"
|
|
|
|
struct aml_cpu_info {
|
|
uint32_t version;
|
|
uint8_t chip_id[16];
|
|
};
|
|
|
|
static int aml_sip_get_chip_id(uint64_t version)
|
|
{
|
|
struct aml_cpu_info *info = (void *)AML_SHARE_MEM_OUTPUT_BASE;
|
|
uint32_t size;
|
|
|
|
if (version > 2)
|
|
return -1;
|
|
|
|
memset(info, 0, sizeof(struct aml_cpu_info));
|
|
|
|
if (version == 2) {
|
|
info->version = 2;
|
|
size = 16;
|
|
} else {
|
|
info->version = 1;
|
|
size = 12;
|
|
}
|
|
|
|
if (aml_scpi_get_chip_id(info->chip_id, size) == 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* This function is responsible for handling all SiP calls
|
|
******************************************************************************/
|
|
static uintptr_t aml_sip_handler(uint32_t smc_fid,
|
|
u_register_t x1, u_register_t x2,
|
|
u_register_t x3, u_register_t x4,
|
|
void *cookie, void *handle,
|
|
u_register_t flags)
|
|
{
|
|
switch (smc_fid) {
|
|
|
|
case AML_SM_GET_SHARE_MEM_INPUT_BASE:
|
|
SMC_RET1(handle, AML_SHARE_MEM_INPUT_BASE);
|
|
|
|
case AML_SM_GET_SHARE_MEM_OUTPUT_BASE:
|
|
SMC_RET1(handle, AML_SHARE_MEM_OUTPUT_BASE);
|
|
|
|
case AML_SM_EFUSE_READ:
|
|
{
|
|
void *dst = (void *)AML_SHARE_MEM_OUTPUT_BASE;
|
|
uint64_t ret = aml_efuse_read(dst, (uint32_t)x1, x2);
|
|
|
|
SMC_RET1(handle, ret);
|
|
}
|
|
case AML_SM_EFUSE_USER_MAX:
|
|
SMC_RET1(handle, aml_efuse_user_max());
|
|
|
|
case AML_SM_JTAG_ON:
|
|
aml_scpi_jtag_set_state(AML_JTAG_STATE_ON, x1);
|
|
SMC_RET1(handle, 0);
|
|
|
|
case AML_SM_JTAG_OFF:
|
|
aml_scpi_jtag_set_state(AML_JTAG_STATE_OFF, x1);
|
|
SMC_RET1(handle, 0);
|
|
|
|
case AML_SM_GET_CHIP_ID:
|
|
SMC_RET1(handle, aml_sip_get_chip_id(x1));
|
|
|
|
default:
|
|
ERROR("BL31: Unhandled SIP SMC: 0x%08x\n", smc_fid);
|
|
break;
|
|
}
|
|
|
|
SMC_RET1(handle, SMC_UNK);
|
|
}
|
|
|
|
DECLARE_RT_SVC(
|
|
aml_sip_handler,
|
|
|
|
OEN_SIP_START,
|
|
OEN_SIP_END,
|
|
SMC_TYPE_FAST,
|
|
NULL,
|
|
aml_sip_handler
|
|
);
|