Add support of sysreset with generic driver "syscon-reboot" provided by RCC, for U-boot and for SPL.

Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---

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 425f533..b59da78 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1163,6 +1163,7 @@ 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 7a9a4ce..1eca802 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 77953c8..b84899a 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 c1ad939..22e1d11 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 @@ -29,6 +30,7 @@ config TARGET_STM32MP1 select CPU_V7_HAS_VIRT 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 4ba2aec..f9f3bf9 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) -{ -}