Merge tag 'stm32-soc-for-v5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into arm/soc

STM32 SoC for v5.16, round 1

Highlights:
----------

Add support of new STM32MP13 SoC which enhances current
STM32 MPU family. It is mainly a derivative of STM32MP15 SoCs
(one Cortex-A7 plus standard peripherals).

The STM32MP13 SoC diversity is composed by:
    -STM32MP131:
      -core: 1*CA7, 17*TIMERS, 5*LPTIMERS, DMA/MDMA/DMAMUX
      -storage: 3*SDMCC, 1*QSPI, FMC
      -com: USB (OHCI/EHCI, OTG), 5*I2C, 5*SPI/I2S, 8*U(S)ART
      -audio: 2*SAI
      -network: 1*ETH(GMAC)
    -STM32MP133: STM32MP131 + 2*CAN, ETH2(GMAC), ADC1
    -STM32MP135: STM32MP133 + DCMIPP, LTDC

* tag 'stm32-soc-for-v5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
  ARM: stm32: add initial support for STM32MP13 family
  docs: arm: stm32: introduce STM32MP13 SoCs

Link: https://lore.kernel.org/r/0b6c9657-dcca-3bad-601f-610dfc81d9ae@foss.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/arm/index.rst

@@ -55,6 +55,7 @@ SoC-specific documents
    stm32/stm32h750-overview
    stm32/stm32f769-overview
    stm32/stm32f429-overview
+   stm32/stm32mp13-overview
    stm32/stm32mp157-overview
 
    sunxi

Documentation/arm/stm32/stm32mp13-overview.rst

@@ -0,0 +1,37 @@
+===================
+STM32MP13 Overview
+===================
+
+Introduction
+------------
+
+The STM32MP131/STM32MP133/STM32MP135 are Cortex-A MPU aimed at various applications.
+They feature:
+
+- One Cortex-A7 application core
+- Standard memories interface support
+- Standard connectivity, widely inherited from the STM32 MCU family
+- Comprehensive security support
+
+More details:
+
+- Cortex-A7 core running up to @900MHz
+- FMC controller to connect SDRAM, NOR and NAND memories
+- QSPI
+- SD/MMC/SDIO support
+- 2*Ethernet controller
+- CAN
+- ADC/DAC
+- USB EHCI/OHCI controllers
+- USB OTG
+- I2C, SPI, CAN busses support
+- Several general purpose timers
+- Serial Audio interface
+- LCD controller
+- DCMIPP
+- SPDIFRX
+- DFSDM
+
+:Authors:
+
+- Alexandre Torgue <alexandre.torgue@foss.st.com>

arch/arm/mach-stm32/Kconfig

@@ -48,6 +48,14 @@ config MACH_STM32MP157
 	select ARM_ERRATA_814220
 	default y
 
+config MACH_STM32MP13
+	bool "STMicroelectronics STM32MP13x"
+	select ARM_ERRATA_814220
+	default y
+	help
+	  Support for STM32MP13 SoCs:
+	  STM32MP131, STM32MP133, STM32MP135
+
 endif # ARMv7-A
 
 endif

arch/arm/mach-stm32/board-dt.c

@@ -18,6 +18,9 @@ static const char *const stm32_compat[] __initconst = {
 	"st,stm32f769",
 	"st,stm32h743",
 	"st,stm32h750",
+	"st,stm32mp131",
+	"st,stm32mp133",
+	"st,stm32mp135",
 	"st,stm32mp157",
 	NULL
 };