arm64: introduce STM32 family on Armv8 architecture

Add a dedicated ARCH_STM32 for STM32 SoCs config. First STM32 Armv8 SoC
family is the STM32MP25 which is composed of STM32MP251, STM32MP253,
STM32MP255, STM32MP257 SoCs.

Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 89a0b13..b1818d1 100644 (file)
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -277,6 +277,20 @@ config ARCH_INTEL_SOCFPGA
          Stratix 10 (ex. Altera), Stratix10 Software Virtual Platform,
          Agilex and eASIC N5X.
 
+config ARCH_STM32
+       bool "STMicroelectronics STM32 SoC Family"
+       select GPIOLIB
+       select PINCTRL
+       select PINCTRL_STM32MP257
+       select ARM_SMC_MBOX
+       select ARM_SCMI_PROTOCOL
+       select COMMON_CLK_SCMI
+       help
+         This enables support for ARMv8 based STMicroelectronics
+         STM32 family, including:
+               - STM32MP25:
+                       - STM32MP251, STM32MP253, STM32MP255 and STM32MP257.
+
 config ARCH_SYNQUACER
        bool "Socionext SynQuacer SoC Family"
        select IRQ_FASTEOI_HIERARCHY_HANDLERS