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arm64: renesas: Make stub PSCI implementation available on 64bit R-Car SoCs

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Make the R-Car V3U stub PSCI implementation available on 64bit R-Car SoCs.
This implementation is useful during early board bring up, where it can
supplant missing fully-featured PSCI implementation. Note that this PSCI
implementation is very basic and offers only SoC reset functionality. It
is unable to enable or disable secondary CPU cores nor does it offer any
suspend/resume functionality.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Marek Vasut
2024-12-12 14:36:09 +01:00
parent 94255316db
commit 67440c8642
2 changed files with 3 additions and 4 deletions
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4
arch/arm/mach-renesas/Makefile
View File

@@ -15,8 +15,8 @@ obj-$(CONFIG_RCAR_GEN4) += cpu_info-rcar.o memmap-gen3.o
obj-$(CONFIG_RZ_G2) += cpu_info-rzg.o
obj-$(CONFIG_RZG2L) += cpu_info-rzg2l.o memmap-rzg2l.o
ifneq ($(CONFIG_R8A779A0),)
obj-$(CONFIG_ARMV8_PSCI) += psci-r8a779a0.o
ifneq ($(CONFIG_RCAR_64),)
obj-$(CONFIG_ARMV8_PSCI) += psci-rcar64.o
endif
OBJCOPYFLAGS_u-boot-spl.srec := -O srec

3
arch/arm/mach-renesas/psci-r8a779a0.c → arch/arm/mach-renesas/psci-rcar64.c
View File

@@ -1,9 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* This file implements basic PSCI support for Renesas r8a779a0 SoC
* This file implements basic PSCI support for Renesas R-Car 64bit SoCs
*
* Copyright (C) 2020 Renesas Electronics Corp.
*
*/
#include <asm/io.h>