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fix(tegra210): support legacy SMC_ID 0xC2FEFE00

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This patch introduces a workaround to support the legacy SMC FID
0xC2FEFE00 to maintain compatibility with older software components.

Change-Id: Icf2ef9cfa6b28c09bbab325a642d0b3b20b23535
Signed-off-by: Kalyani Chidambaram Vaidyanathan <kalyanic@nvidia.com>
This commit is contained in:
Kalyani Chidambaram Vaidyanathan 2023-01-30 17:44:26 -08:00 • committed by Varun Wadekar
parent 4121a2c320
commit 40a4e2d84c
1 changed files with 3 additions and 2 deletions
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5
plat/nvidia/tegra/soc/t210/plat_sip_calls.c
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@ -1,6 +1,6 @@
/* /*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2020, NVIDIA Corporation. All rights reserved. * Copyright (c) 2020-2023, NVIDIA Corporation. All rights reserved.
* *
* SPDX-License-Identifier: BSD-3-Clause * SPDX-License-Identifier: BSD-3-Clause
*/ */
@ -33,6 +33,7 @@
/******************************************************************************* /*******************************************************************************
* Tegra210 SiP SMCs * Tegra210 SiP SMCs
******************************************************************************/ ******************************************************************************/
#define TEGRA_SIP_PMC_COMMANDS_LEGACY U(0xC2FEFE00)
#define TEGRA_SIP_PMC_COMMANDS U(0xC2FFFE00) #define TEGRA_SIP_PMC_COMMANDS U(0xC2FFFE00)
/******************************************************************************* /*******************************************************************************
@ -54,7 +55,7 @@ int plat_sip_handler(uint32_t smc_fid,
if (!ns) if (!ns)
SMC_RET1(handle, SMC_UNK); SMC_RET1(handle, SMC_UNK);
if (smc_fid == TEGRA_SIP_PMC_COMMANDS) { if ((smc_fid == TEGRA_SIP_PMC_COMMANDS) || (smc_fid == TEGRA_SIP_PMC_COMMANDS_LEGACY)) {
/* check the address is within PMC range and is 4byte aligned */ /* check the address is within PMC range and is 4byte aligned */
if ((x2 >= TEGRA_PMC_SIZE) || (x2 & 0x3)) if ((x2 >= TEGRA_PMC_SIZE) || (x2 & 0x3))
return -EINVAL; return -EINVAL;