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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-08-25 21:03:41 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-08-28 13:09:19 +0900 |
| commit | 928f3248b3e81a9fdaa818cf3aa02e5daef7015d (patch) | |
| tree | eab07df3764574cf8761867762c640bae53914c9 | |
| parent | 4a89a24e26670921614a83098e5c0692de2be86e (diff) | |
| download | u-boot-imx-928f3248b3e81a9fdaa818cf3aa02e5daef7015d.zip u-boot-imx-928f3248b3e81a9fdaa818cf3aa02e5daef7015d.tar.gz u-boot-imx-928f3248b3e81a9fdaa818cf3aa02e5daef7015d.tar.bz2 | |
ARM: uniphier: support system reset functionality for PSCI
This supports the system reset via PSCI for ARMv7 SoCs.
Because the system reset is not supported on PSCI 0.1, let's define
CONFIG_ARMV7_PSCI_1_0. (it is supported since PSCI 0.2, but there
is no CONFIG to enable it in U-Boot for now.)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| -rw-r--r-- | arch/arm/mach-uniphier/arm32/psci.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-uniphier/reset.c | 14 | ||||
| -rw-r--r-- | include/configs/uniphier.h | 1 |
3 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/mach-uniphier/arm32/psci.c b/arch/arm/mach-uniphier/arm32/psci.c index 633a3e0..e668265 100644 --- a/arch/arm/mach-uniphier/arm32/psci.c +++ b/arch/arm/mach-uniphier/arm32/psci.c @@ -151,3 +151,8 @@ int __secure psci_cpu_on(u32 function_id, u32 cpuid, u32 entry_point) return PSCI_RET_SUCCESS; } + +void __secure psci_system_reset(u32 function_id) +{ + reset_cpu(0); +} diff --git a/arch/arm/mach-uniphier/reset.c b/arch/arm/mach-uniphier/reset.c index b5825bc..43e27d1 100644 --- a/arch/arm/mach-uniphier/reset.c +++ b/arch/arm/mach-uniphier/reset.c @@ -1,15 +1,25 @@ /* - * Copyright (C) 2012-2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * Copyright (C) 2012-2014 Panasonic Corporation + * Copyright (C) 2015-2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <linux/io.h> +#include <asm/secure.h> #include "sc-regs.h" -void reset_cpu(unsigned long ignored) +/* If PSCI is enabled, this is used for SYSTEM_RESET function */ +#ifdef CONFIG_ARMV7_PSCI +#define __SECURE __secure +#else +#define __SECURE +#endif + +void __SECURE reset_cpu(unsigned long ignored) { u32 tmp; diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index 0f5b20f..184704b 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -12,6 +12,7 @@ #define __CONFIG_UNIPHIER_COMMON_H__ #define CONFIG_ARMV7_PSCI +#define CONFIG_ARMV7_PSCI_1_0 #define CONFIG_ARMV7_PSCI_NR_CPUS 4 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 |