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author | Varun Wadekar <vwadekar@nvidia.com> | 2020-05-12 14:04:10 -0700 |
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committer | varunw-nvidia <vwadekar@nvidia.com> | 2020-05-12 22:43:03 +0000 |
commit | b5b2923d9d1676d6f4395cb64d6fe6ca3f4109d4 (patch) | |
tree | 01e8a0940080c2261ca09db91563c1b45a876a81 /plat/nvidia/tegra/common/tegra_platform.c | |
parent | 4e2887f2da05dc510e9ce1e9d648ef2b5d745649 (diff) | |
download | trusted-firmware-a-b5b2923d9d1676d6f4395cb64d6fe6ca3f4109d4.tar.gz |
Tegra: introduce support for SMCCC_ARCH_SOC_ID
This patch returns the SOC version and revision values from
the 'plat_get_soc_version' and 'plat_get_soc_revision' handlers.
Verified using TFTF SMCCC_ARCH_SOC_ID test.
<snip>
> Executing 'SMCCC_ARCH_SOC_ID test'
TEST COMPLETE Passed
SOC Rev = 0x102
SOC Ver = 0x36b0019
<snip>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Ibd7101619143b74f6f6660732daeac1a8bca3e44
Diffstat (limited to 'plat/nvidia/tegra/common/tegra_platform.c')
-rw-r--r-- | plat/nvidia/tegra/common/tegra_platform.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/common/tegra_platform.c b/plat/nvidia/tegra/common/tegra_platform.c index c1e4209593..e4338b9638 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 @@ 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()); +} |