From 86634a93b45ab0ede95716c859b4c57edb0a7d85 Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Tue, 20 Mar 2018 14:15:06 +0100 Subject: [PATCH] stm32mp: handle SYSRESET Add support of sysreset with generic driver "syscon-reboot" provided by RCC, for U-boot and for SPL. Signed-off-by: Patrick Delaunay --- arch/arm/Kconfig | 1 + arch/arm/dts/stm32mp157-u-boot.dtsi | 4 ++++ arch/arm/dts/stm32mp157.dtsi | 7 +++++++ arch/arm/mach-stm32mp/Kconfig | 2 ++ arch/arm/mach-stm32mp/cpu.c | 4 ---- 5 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 777b2f01ec..190f883aa8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1166,6 +1166,7 @@ config ARCH_STM32MP select REGMAP select SUPPORT_SPL select SYSCON + select SYSRESET select SYS_THUMB_BUILD help Support for STM32MP SoC family developed by STMicroelectronics, diff --git a/arch/arm/dts/stm32mp157-u-boot.dtsi b/arch/arm/dts/stm32mp157-u-boot.dtsi index 7a9a4ce73c..1eca8020f9 100644 --- a/arch/arm/dts/stm32mp157-u-boot.dtsi +++ b/arch/arm/dts/stm32mp157-u-boot.dtsi @@ -72,6 +72,10 @@ u-boot,dm-pre-reloc; }; +&rcc_reboot { + u-boot,dm-pre-reloc; +}; + &pinctrl { u-boot,dm-pre-reloc; }; diff --git a/arch/arm/dts/stm32mp157.dtsi b/arch/arm/dts/stm32mp157.dtsi index 77953c8e9d..b84899a1ea 100644 --- a/arch/arm/dts/stm32mp157.dtsi +++ b/arch/arm/dts/stm32mp157.dtsi @@ -114,6 +114,13 @@ #reset-cells = <1>; compatible = "st,stm32mp1-rcc-rst"; }; + + rcc_reboot: rcc-reboot@50000000 { + compatible = "syscon-reboot"; + regmap = <&rcc>; + offset = <0x404>; + mask = <0x1>; + }; }; pinctrl: pin-controller { diff --git a/arch/arm/mach-stm32mp/Kconfig b/arch/arm/mach-stm32mp/Kconfig index 9771af927a..8ca97bf0c9 100644 --- a/arch/arm/mach-stm32mp/Kconfig +++ b/arch/arm/mach-stm32mp/Kconfig @@ -16,6 +16,7 @@ config SPL select SPL_RESET_SUPPORT select SPL_SERIAL_SUPPORT select SPL_SYSCON + select SPL_DRIVERS_MISC_SUPPORT imply SPL_LIBDISK_SUPPORT config SYS_SOC @@ -26,6 +27,7 @@ config TARGET_STM32MP1 select CPU_V7 select PINCTRL_STM32 select STM32_RESET + select SYSRESET_SYSCON help target STMicroelectronics SOC STM32MP1 family STMicroelectronics MPU with core ARMv7 diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c index 4ba2aecb7f..f9f3bf9050 100644 --- a/arch/arm/mach-stm32mp/cpu.c +++ b/arch/arm/mach-stm32mp/cpu.c @@ -269,7 +269,3 @@ int arch_misc_init(void) return 0; } - -void reset_cpu(ulong addr) -{ -} -- 2.25.1