diff --git a/plat/nvidia/tegra/common/tegra_platform.c b/plat/nvidia/tegra/common/tegra_platform.c index c1e4209..e4338b9 100644 --- a/plat/nvidia/tegra/common/tegra_platform.c +++ b/plat/nvidia/tegra/common/tegra_platform.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2020, NVIDIA Corporation. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -259,3 +260,29 @@ { 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()); +} diff --git a/plat/nvidia/tegra/include/tegra_platform.h b/plat/nvidia/tegra/include/tegra_platform.h index d83ce48..7dfa4d0 100644 --- a/plat/nvidia/tegra/include/tegra_platform.h +++ b/plat/nvidia/tegra/include/tegra_platform.h @@ -1,5 +1,6 @@ /* * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2020, NVIDIA Corporation. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -30,6 +31,12 @@ #define TEGRA_CHIPID_TEGRA21 U(0x21) #define TEGRA_CHIPID_TEGRA18 U(0x18) +/******************************************************************************* + * JEDEC Standard Manufacturer's Identification Code and Bank ID + ******************************************************************************/ +#define JEDEC_NVIDIA_MFID U(0x6B) +#define JEDEC_NVIDIA_BKID U(3) + #ifndef __ASSEMBLER__ /*