From be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 19:43:51 +0200 Subject: Adding upstream version 2.10.0+dfsg. Signed-off-by: Daniel Baumann --- plat/mediatek/mt8173/aarch64/plat_helpers.S | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 plat/mediatek/mt8173/aarch64/plat_helpers.S (limited to 'plat/mediatek/mt8173/aarch64/plat_helpers.S') diff --git a/plat/mediatek/mt8173/aarch64/plat_helpers.S b/plat/mediatek/mt8173/aarch64/plat_helpers.S new file mode 100644 index 0000000..095dfc5 --- /dev/null +++ b/plat/mediatek/mt8173/aarch64/plat_helpers.S @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#include +#include +#include + + .globl plat_secondary_cold_boot_setup + .globl plat_report_exception + .globl platform_is_primary_cpu + .globl plat_my_core_pos + + /* ----------------------------------------------------- + * void plat_secondary_cold_boot_setup (void); + * + * This function performs any platform specific actions + * needed for a secondary cpu after a cold reset e.g + * mark the cpu's presence, mechanism to place it in a + * holding pen etc. + * ----------------------------------------------------- + */ +func plat_secondary_cold_boot_setup + /* MT8173 Oak does not do cold boot for secondary CPU */ +cb_panic: + b cb_panic +endfunc plat_secondary_cold_boot_setup + +func platform_is_primary_cpu + and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK) + cmp x0, #MT8173_PRIMARY_CPU + cset x0, eq + ret +endfunc platform_is_primary_cpu + + /* ----------------------------------------------------- + * unsigned int plat_my_core_pos(void); + * + * result: CorePos = CoreId + (ClusterId << 2) + * ----------------------------------------------------- + */ +func plat_my_core_pos + mrs x0, mpidr_el1 + and x1, x0, #MPIDR_CPU_MASK + and x0, x0, #MPIDR_CLUSTER_MASK + add x0, x1, x0, LSR #6 + ret +endfunc plat_my_core_pos -- cgit v1.2.3