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b05876bb9c
Adds the required TF-A and OP-TEE patches to enable LPM support on J7200, J784s4, J742s2. Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com> Signed-off-by: Ryan Eatmon <reatmon@ti.com>
46 lines
1.7 KiB
Diff
46 lines
1.7 KiB
Diff
From 00f74ba2ab00088d51e6da3c0eefe50599ef5c82 Mon Sep 17 00:00:00 2001
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From: Prasanth Babu Mantena <p-mantena@ti.com>
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Date: Mon, 3 Nov 2025 12:42:57 +0530
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Subject: [PATCH] plat-k3: drivers: Open TRNG firewall for TIFS on all k3 devs
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On k3 devices, TRNG is firewalled to be accessed only by OPTEE.
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TIFS needs this for the encryption and decryption services to support
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different low power modes. So, open firewall to TIFS as well.
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There is no concurrent usage of TRNG, as TIFS uses TRNG only at suspend
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when OPTEE is down and resume, when firewalls are restored but OPTEE is
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not up yet.
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As this is a firewall that required to be shared along with TIFS on all
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devices, making this a common change and open on all devs.
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Upstream-Status: Submitted [https://github.com/OP-TEE/optee_os/pull/7582]
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Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
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Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
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Reviewed-by: Andrew Davis <afd@ti.com>
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---
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core/arch/arm/plat-k3/drivers/sa2ul.c | 5 -----
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1 file changed, 5 deletions(-)
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diff --git a/core/arch/arm/plat-k3/drivers/sa2ul.c b/core/arch/arm/plat-k3/drivers/sa2ul.c
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index c50757b2c..e10bde131 100644
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--- a/core/arch/arm/plat-k3/drivers/sa2ul.c
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+++ b/core/arch/arm/plat-k3/drivers/sa2ul.c
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@@ -121,12 +121,7 @@ static TEE_Result sa2ul_init(void)
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start_address = RNG_BASE;
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end_address = RNG_BASE + RNG_REG_SIZE - 1;
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permissions[num_perm++] = (FW_BIG_ARM_PRIVID << 16) | FW_SECURE_ONLY;
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-#if defined(PLATFORM_FLAVOR_am62x) || \
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- defined(PLATFORM_FLAVOR_am62ax) || \
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- defined(PLATFORM_FLAVOR_am62px)
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-
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permissions[num_perm++] = (FW_TIFS_PRIVID << 16) | FW_NON_SECURE;
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-#endif
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ret = ti_sci_set_fwl_region(fwl_id, rng_region, num_perm,
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control, permissions,
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start_address, end_address);
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--
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2.34.1
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