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/*
* Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch_helpers.h>
#include <assert.h>
#include <lib/mmio.h>
#include <lib/smccc.h>
#include <services/arm_arch_svc.h>
#include <tegra_def.h>
#include <tegra_platform.h>
#include <tegra_private.h>
/*******************************************************************************
* Tegra platforms
******************************************************************************/
typedef enum tegra_platform {
TEGRA_PLATFORM_SILICON = 0U,
TEGRA_PLATFORM_QT,
TEGRA_PLATFORM_FPGA,
TEGRA_PLATFORM_EMULATION,
TEGRA_PLATFORM_LINSIM,
TEGRA_PLATFORM_UNIT_FPGA,
TEGRA_PLATFORM_VIRT_DEV_KIT,
TEGRA_PLATFORM_MAX,
} tegra_platform_t;
/*******************************************************************************
* Tegra macros defining all the SoC minor versions
******************************************************************************/
#define TEGRA_MINOR_QT U(0)
#define TEGRA_MINOR_FPGA U(1)
#define TEGRA_MINOR_ASIM_QT U(2)
#define TEGRA_MINOR_ASIM_LINSIM U(3)
#define TEGRA_MINOR_DSIM_ASIM_LINSIM U(4)
#define TEGRA_MINOR_UNIT_FPGA U(5)
#define TEGRA_MINOR_VIRT_DEV_KIT U(6)
/*******************************************************************************
* Tegra macros defining all the SoC pre_si_platform
******************************************************************************/
#define TEGRA_PRE_SI_QT U(1)
#define TEGRA_PRE_SI_FPGA U(2)
#define TEGRA_PRE_SI_UNIT_FPGA U(3)
#define TEGRA_PRE_SI_ASIM_QT U(4)
#define TEGRA_PRE_SI_ASIM_LINSIM U(5)
#define TEGRA_PRE_SI_DSIM_ASIM_LINSIM U(6)
#define TEGRA_PRE_SI_VDK U(8)
/*
* Read the chip ID value
*/
static uint32_t tegra_get_chipid(void)
{
return mmio_read_32(TEGRA_MISC_BASE + HARDWARE_REVISION_OFFSET);
}
/*
* Read the chip's major version from chip ID value
*/
uint32_t tegra_get_chipid_major(void)
{
return (tegra_get_chipid() >> MAJOR_VERSION_SHIFT) & MAJOR_VERSION_MASK;
}
/*
* Read the chip's minor version from the chip ID value
*/
uint32_t tegra_get_chipid_minor(void)
{
return (tegra_get_chipid() >> MINOR_VERSION_SHIFT) & MINOR_VERSION_MASK;
}
/*
* Read the chip's pre_si_platform valus from the chip ID value
*/
static uint32_t tegra_get_chipid_pre_si_platform(void)
{
return (tegra_get_chipid() >> PRE_SI_PLATFORM_SHIFT) & PRE_SI_PLATFORM_MASK;
}
bool tegra_chipid_is_t132(void)
{
uint32_t chip_id = ((tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK);
return (chip_id == TEGRA_CHIPID_TEGRA13);
}
bool tegra_chipid_is_t186(void)
{
uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
return (chip_id == TEGRA_CHIPID_TEGRA18);
}
bool tegra_chipid_is_t210(void)
{
uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
return (chip_id == TEGRA_CHIPID_TEGRA21);
}
bool tegra_chipid_is_t210_b01(void)
{
return (tegra_chipid_is_t210() && (tegra_get_chipid_major() == 0x2U));
}
/*
* Read the chip ID value and derive the platform
*/
static tegra_platform_t tegra_get_platform(void)
{
uint32_t major, minor, pre_si_platform;
tegra_platform_t ret;
/* get the major/minor chip ID values */
major = tegra_get_chipid_major();
minor = tegra_get_chipid_minor();
pre_si_platform = tegra_get_chipid_pre_si_platform();
if (major == 0U) {
/*
* The minor version number is used by simulation platforms
*/
switch (minor) {
/*
* Cadence's QuickTurn emulation system is a Solaris-based
* chip emulation system
*/
case TEGRA_MINOR_QT:
case TEGRA_MINOR_ASIM_QT:
ret = TEGRA_PLATFORM_QT;
break;
/*
* FPGAs are used during early software/hardware development
*/
case TEGRA_MINOR_FPGA:
ret = TEGRA_PLATFORM_FPGA;
break;
/*
* Linsim is a reconfigurable, clock-driven, mixed RTL/cmodel
* simulation framework.
*/
case TEGRA_MINOR_ASIM_LINSIM:
case TEGRA_MINOR_DSIM_ASIM_LINSIM:
ret = TEGRA_PLATFORM_LINSIM;
break;
/*
* Unit FPGAs run the actual hardware block IP on the FPGA with
* the other parts of the system using Linsim.
*/
case TEGRA_MINOR_UNIT_FPGA:
ret = TEGRA_PLATFORM_UNIT_FPGA;
break;
/*
* The Virtualizer Development Kit (VDK) is the standard chip
* development from Synopsis.
*/
case TEGRA_MINOR_VIRT_DEV_KIT:
ret = TEGRA_PLATFORM_VIRT_DEV_KIT;
break;
default:
ret = TEGRA_PLATFORM_MAX;
break;
}
} else if (pre_si_platform > 0U) {
switch (pre_si_platform) {
/*
* Cadence's QuickTurn emulation system is a Solaris-based
* chip emulation system
*/
case TEGRA_PRE_SI_QT:
case TEGRA_PRE_SI_ASIM_QT:
ret = TEGRA_PLATFORM_QT;
break;
/*
* FPGAs are used during early software/hardware development
*/
case TEGRA_PRE_SI_FPGA:
ret = TEGRA_PLATFORM_FPGA;
break;
/*
* Linsim is a reconfigurable, clock-driven, mixed RTL/cmodel
* simulation framework.
*/
case TEGRA_PRE_SI_ASIM_LINSIM:
case TEGRA_PRE_SI_DSIM_ASIM_LINSIM:
ret = TEGRA_PLATFORM_LINSIM;
break;
/*
* Unit FPGAs run the actual hardware block IP on the FPGA with
* the other parts of the system using Linsim.
*/
case TEGRA_PRE_SI_UNIT_FPGA:
ret = TEGRA_PLATFORM_UNIT_FPGA;
break;
/*
* The Virtualizer Development Kit (VDK) is the standard chip
* development from Synopsis.
*/
case TEGRA_PRE_SI_VDK:
ret = TEGRA_PLATFORM_VIRT_DEV_KIT;
break;
default:
ret = TEGRA_PLATFORM_MAX;
break;
}
} else {
/* Actual silicon platforms have a non-zero major version */
ret = TEGRA_PLATFORM_SILICON;
}
return ret;
}
bool tegra_platform_is_silicon(void)
{
return ((tegra_get_platform() == TEGRA_PLATFORM_SILICON) ? true : false);
}
bool tegra_platform_is_qt(void)
{
return ((tegra_get_platform() == TEGRA_PLATFORM_QT) ? true : false);
}
bool tegra_platform_is_linsim(void)
{
tegra_platform_t plat = tegra_get_platform();
return (((plat == TEGRA_PLATFORM_LINSIM) ||
(plat == TEGRA_PLATFORM_UNIT_FPGA)) ? true : false);
}
bool tegra_platform_is_fpga(void)
{
return ((tegra_get_platform() == TEGRA_PLATFORM_FPGA) ? true : false);
}
bool tegra_platform_is_emulation(void)
{
return (tegra_get_platform() == TEGRA_PLATFORM_EMULATION);
}
bool tegra_platform_is_unit_fpga(void)
{
return ((tegra_get_platform() == TEGRA_PLATFORM_UNIT_FPGA) ? true : false);
}
bool tegra_platform_is_virt_dev_kit(void)
{
return ((tegra_get_platform() == TEGRA_PLATFORM_VIRT_DEV_KIT) ? true : false);
}
/*
* This function returns soc version which mainly consist of below fields
*
* soc_version[30:24] = JEP-106 continuation code for the SiP
* soc_version[23:16] = JEP-106 identification code with parity bit for the SiP
* soc_version[0:15] = chip identification
*/
int32_t plat_get_soc_version(void)
{
uint32_t chip_id = ((tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK);
uint32_t manfid = (JEDEC_NVIDIA_BKID << 24) | (JEDEC_NVIDIA_MFID << 16);
return (int32_t)(manfid | (chip_id & 0xFFFF));
}
/*
* This function returns soc revision in below format
*
* soc_revision[8:15] = major version number
* soc_revision[0:7] = minor version number
*/
int32_t plat_get_soc_revision(void)
{
return (int32_t)((tegra_get_chipid_major() << 8) | tegra_get_chipid_minor());
}
/*****************************************************************************
* plat_smccc_feature_available() - This function checks whether SMCCC feature
* is availabile for the platform or not.
* @fid: SMCCC function id
*
* Return SMC_ARCH_CALL_SUCCESS if SMCCC feature is available and
* SMC_ARCH_CALL_NOT_SUPPORTED otherwise.
*****************************************************************************/
int32_t plat_smccc_feature_available(u_register_t fid)
{
switch (fid) {
case SMCCC_ARCH_SOC_ID:
return SMC_ARCH_CALL_SUCCESS;
default:
return SMC_ARCH_CALL_NOT_SUPPORTED;
}
}