diff options
| -rw-r--r-- | arch/arm/mach-rmobile/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-rmobile/psci-r8a779a0.c | 49 | ||||
| -rw-r--r-- | configs/r8a779a0_falcon_defconfig | 1 |
3 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-rmobile/Makefile b/arch/arm/mach-rmobile/Makefile index 81a0dedb41a..195bbeb5c88 100644 --- a/arch/arm/mach-rmobile/Makefile +++ b/arch/arm/mach-rmobile/Makefile @@ -15,6 +15,10 @@ obj-$(CONFIG_RCAR_GEN2) += lowlevel_init_ca15.o cpu_info-rcar.o obj-$(CONFIG_RCAR_GEN3) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-gen3.o obj-$(CONFIG_RZ_G2) += cpu_info-rzg.o +ifneq ($(CONFIG_R8A779A0),) +obj-$(CONFIG_ARMV8_PSCI) += psci-r8a779a0.o +endif + OBJCOPYFLAGS_u-boot-spl.srec := -O srec quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) --gap-fill=0x00 $(OBJCOPYFLAGS) \ diff --git a/arch/arm/mach-rmobile/psci-r8a779a0.c b/arch/arm/mach-rmobile/psci-r8a779a0.c new file mode 100644 index 00000000000..6a85eb22cac --- /dev/null +++ b/arch/arm/mach-rmobile/psci-r8a779a0.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This file implements basic PSCI support for Renesas r8a779a0 SoC + * + * Copyright (C) 2020 Renesas Electronics Corp. + * + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/psci.h> +#include <asm/secure.h> + +int __secure psci_features(u32 function_id, u32 psci_fid) +{ + switch (psci_fid) { + case ARM_PSCI_0_2_FN_PSCI_VERSION: + case ARM_PSCI_0_2_FN_SYSTEM_RESET: + return 0x0; + } + /* case ARM_PSCI_0_2_FN_CPU_ON: */ + /* case ARM_PSCI_0_2_FN_CPU_OFF: */ + /* case ARM_PSCI_0_2_FN_AFFINITY_INFO: */ + /* case ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE: */ + /* case ARM_PSCI_0_2_FN_SYSTEM_OFF: */ + return ARM_PSCI_RET_NI; +} + +u32 __secure psci_version(void) +{ + return ARM_PSCI_VER_0_2; +} + +#define RST_BASE 0xE6160000 /* Domain0 */ +#define RST_SRESCR0 (RST_BASE + 0x18) +#define RST_SPRES 0x5AA58000 + +void __secure __noreturn psci_system_reset(void) +{ + writel(RST_SPRES, RST_SRESCR0); + + while (1) + ; +} + +int psci_update_dt(void *fdt) +{ + return 0; +} diff --git a/configs/r8a779a0_falcon_defconfig b/configs/r8a779a0_falcon_defconfig index dad8b77acf5..8df647acfb5 100644 --- a/configs/r8a779a0_falcon_defconfig +++ b/configs/r8a779a0_falcon_defconfig @@ -10,6 +10,7 @@ CONFIG_SPL_TEXT_BASE=0xe6338000 CONFIG_RCAR_GEN3=y CONFIG_TARGET_FALCON=y # CONFIG_PSCI_RESET is not set +CONFIG_ARMV8_PSCI=y CONFIG_DEFAULT_DEVICE_TREE="r8a779a0-falcon-u-boot" CONFIG_FIT=y CONFIG_SUPPORT_RAW_INITRD=y |