152 lines
3.8 KiB
C
152 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <arch_helpers.h>
|
|
#include <mmio.h>
|
|
#include <tegra_def.h>
|
|
#include <tegra_platform.h>
|
|
#include <tegra_private.h>
|
|
|
|
/*******************************************************************************
|
|
* Tegra platforms
|
|
******************************************************************************/
|
|
typedef enum tegra_platform {
|
|
TEGRA_PLATFORM_SILICON = 0,
|
|
TEGRA_PLATFORM_QT,
|
|
TEGRA_PLATFORM_FPGA,
|
|
TEGRA_PLATFORM_EMULATION,
|
|
TEGRA_PLATFORM_MAX,
|
|
} tegra_platform_t;
|
|
|
|
/*******************************************************************************
|
|
* Tegra macros defining all the SoC minor versions
|
|
******************************************************************************/
|
|
#define TEGRA_MINOR_QT 0
|
|
#define TEGRA_MINOR_FPGA 1
|
|
#define TEGRA_MINOR_EMULATION_MIN 2
|
|
#define TEGRA_MINOR_EMULATION_MAX 10
|
|
|
|
/*******************************************************************************
|
|
* Tegra major, minor version helper macros
|
|
******************************************************************************/
|
|
#define MAJOR_VERSION_SHIFT 0x4
|
|
#define MAJOR_VERSION_MASK 0xF
|
|
#define MINOR_VERSION_SHIFT 0x10
|
|
#define MINOR_VERSION_MASK 0xF
|
|
#define CHIP_ID_SHIFT 8
|
|
#define CHIP_ID_MASK 0xFF
|
|
|
|
/*******************************************************************************
|
|
* Tegra chip ID values
|
|
******************************************************************************/
|
|
typedef enum tegra_chipid {
|
|
TEGRA_CHIPID_TEGRA13 = 0x13,
|
|
TEGRA_CHIPID_TEGRA21 = 0x21,
|
|
TEGRA_CHIPID_TEGRA18 = 0x18,
|
|
} tegra_chipid_t;
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
uint8_t tegra_chipid_is_t132(void)
|
|
{
|
|
uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
|
|
|
|
return (chip_id == TEGRA_CHIPID_TEGRA13);
|
|
}
|
|
|
|
uint8_t tegra_chipid_is_t210(void)
|
|
{
|
|
uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
|
|
|
|
return (chip_id == TEGRA_CHIPID_TEGRA21);
|
|
}
|
|
|
|
uint8_t tegra_chipid_is_t186(void)
|
|
{
|
|
uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
|
|
|
|
return (chip_id == TEGRA_CHIPID_TEGRA18);
|
|
}
|
|
|
|
/*
|
|
* Read the chip ID value and derive the platform
|
|
*/
|
|
static tegra_platform_t tegra_get_platform(void)
|
|
{
|
|
uint32_t major = tegra_get_chipid_major();
|
|
uint32_t minor = tegra_get_chipid_minor();
|
|
|
|
/* Actual silicon platforms have a non-zero major version */
|
|
if (major > 0)
|
|
return TEGRA_PLATFORM_SILICON;
|
|
|
|
/*
|
|
* The minor version number is used by simulation platforms
|
|
*/
|
|
|
|
/*
|
|
* Cadence's QuickTurn emulation system is a Solaris-based
|
|
* chip emulation system
|
|
*/
|
|
if (minor == TEGRA_MINOR_QT)
|
|
return TEGRA_PLATFORM_QT;
|
|
|
|
/*
|
|
* FPGAs are used during early software/hardware development
|
|
*/
|
|
if (minor == TEGRA_MINOR_FPGA)
|
|
return TEGRA_PLATFORM_FPGA;
|
|
|
|
/* Minor version reserved for other emulation platforms */
|
|
if ((minor > TEGRA_MINOR_FPGA) && (minor <= TEGRA_MINOR_EMULATION_MAX))
|
|
return TEGRA_PLATFORM_EMULATION;
|
|
|
|
/* unsupported platform */
|
|
return TEGRA_PLATFORM_MAX;
|
|
}
|
|
|
|
uint8_t tegra_platform_is_silicon(void)
|
|
{
|
|
return (tegra_get_platform() == TEGRA_PLATFORM_SILICON);
|
|
}
|
|
|
|
uint8_t tegra_platform_is_qt(void)
|
|
{
|
|
return (tegra_get_platform() == TEGRA_PLATFORM_QT);
|
|
}
|
|
|
|
uint8_t tegra_platform_is_fpga(void)
|
|
{
|
|
return (tegra_get_platform() == TEGRA_PLATFORM_FPGA);
|
|
}
|
|
|
|
uint8_t tegra_platform_is_emulation(void)
|
|
{
|
|
return (tegra_get_platform() == TEGRA_PLATFORM_EMULATION);
|
|
}
|