MT25QL flash MTD driver addtion

arch/arm/include/stm32/chip.h

@@ -2099,6 +2099,31 @@
 #  define STM32_NRNG                     1   /* Random number generator (RNG) */
 #  define STM32_NDCMI                    1   /* Digital camera interface (DCMI) */
 
+#elif defined(CONFIG_ARCH_CHIP_STM32F427A)   /* UBGA169 1024/2048KiB flash 256KiB SRAM */
+#  define STM32_NFSMC                    1   /* FSMC */
+#  define STM32_NATIM                    2   /* Two advanced timers TIM1 and 8 */
+#  define STM32_NGTIM                    4   /* 16-bit general timers TIM3 and 4 with DMA
+                                              * 32-bit general timers TIM2 and 5 with DMA */
+#  define STM32_NGTIMNDMA                6   /* 16-bit general timers TIM9-14 without DMA */
+#  define STM32_NBTIM                    2   /* Two basic timers, TIM6-7 */
+#  define STM32_NDMA                     2   /* DMA1-2 */
+#  define STM32_NSPI                     6   /* SPI1-6 */
+#  define STM32_NI2S                     2   /* I2S1-2 (multiplexed with SPI2-3) */
+#  define STM32_NUSART                   8   /* USART1-3 and 6, UART 4-5 and 7-8 */
+#  define STM32_NI2C                     3   /* I2C1-3 */
+#  define STM32_NCAN                     2   /* CAN1-2 */
+#  define STM32_NSDIO                    1   /* SDIO */
+#  define STM32_NLCD                     0   /* No LCD */
+#  define STM32_NUSBOTG                  1   /* USB OTG FS/HS */
+#  define STM32_NGPIO                    130 /* GPIOA-I */
+#  define STM32_NADC                     3   /* 12-bit ADC1-3, 24 channels */
+#  define STM32_NDAC                     2   /* 12-bit DAC1, 2 channels */
+#  define STM32_NCAPSENSE                0   /* No capacitive sensing channels */
+#  define STM32_NCRC                     1   /* CRC */
+#  define STM32_NETHERNET                1   /* 100/100 Ethernet MAC */
+#  define STM32_NRNG                     1   /* Random number generator (RNG) */
+#  define STM32_NDCMI                    1   /* Digital Camera Interface*/
+
 #elif defined(CONFIG_ARCH_CHIP_STM32F429I)   /* BGA176; LQFP176 1024/2048KiB flash 256KiB SRAM */
 #  define STM32_NFSMC                    1   /* FSMC */
 #  define STM32_NATIM                    2   /* Two advanced timers TIM1 and 8 */

arch/arm/src/stm32/Kconfig

@@ -1061,6 +1061,12 @@ config ARCH_CHIP_STM32F407IG
 	select STM32_STM32F4XXX
 	select STM32_STM32F407
 
+config ARCH_CHIP_STM32F427A
+	bool "STM32F427A"
+	select STM32_STM32F4XXX
+	select STM32_STM32F427A
+	select STM32_STM32F427
+
 config ARCH_CHIP_STM32F427V
 	bool "STM32F427V"
 	select STM32_STM32F4XXX
@@ -1811,6 +1817,51 @@ config STM32_STM32F427
 	select STM32_HAVE_SPI6
 	select STM32_HAVE_I2SPLL
 
+
+config STM32_STM32F427A
+	bool
+	default n
+	select STM32_HAVE_OVERDRIVE
+	select STM32_HAVE_FMC
+	select STM32_HAVE_CCM
+	select STM32_HAVE_USART2
+	select STM32_HAVE_USART3
+	select STM32_HAVE_UART4
+	select STM32_HAVE_UART5
+	select STM32_HAVE_USART6
+	select STM32_HAVE_UART7
+	select STM32_HAVE_UART8
+	select STM32_HAVE_TIM1
+	select STM32_HAVE_TIM3
+	select STM32_HAVE_TIM4
+	select STM32_HAVE_TIM5
+	select STM32_HAVE_TIM6
+	select STM32_HAVE_TIM7
+	select STM32_HAVE_TIM8
+	select STM32_HAVE_TIM9
+	select STM32_HAVE_TIM10
+	select STM32_HAVE_TIM11
+	select STM32_HAVE_TIM12
+	select STM32_HAVE_TIM13
+	select STM32_HAVE_TIM14
+	select STM32_HAVE_ADC1
+	select STM32_HAVE_ADC2
+	select STM32_HAVE_ADC3
+	select STM32_HAVE_CAN1
+	select STM32_HAVE_CAN2
+	select STM32_HAVE_DAC1
+	select STM32_HAVE_RNG
+	select STM32_HAVE_ETHMAC
+	select STM32_HAVE_SPI2
+	select STM32_HAVE_SPI3
+	select STM32_HAVE_SPI4
+	select STM32_HAVE_SPI5
+	select STM32_HAVE_I2S3
+	select STM32_HAVE_I2C3
+	select STM32_HAVE_OTGFS
+	select STM32_HAVE_SPI6
+	select STM32_HAVE_I2SPLL
+
 # This is really 429/439, but we treat the two the same.
 
 config STM32_STM32F429

arch/arm/src/stm32/hardware/stm32_memorymap.h

@@ -41,7 +41,11 @@
 #elif defined(CONFIG_STM32_STM32F37XX)
 #  include "hardware/stm32f37xxx_memorymap.h"
 #elif defined(CONFIG_STM32_STM32F4XXX)
-#  include "hardware/stm32f40xxx_memorymap.h"
+#  if defined (CONFIG_STM32_STM32F427A)
+#     include "hardware/stm32f427ax_memorymap.h"
+#  else
+#     include "hardware/stm32f40xxx_memorymap.h"
+#  endif
 #elif defined(CONFIG_STM32_STM32G4XXX)
 #  include "hardware/stm32g4xxxx_memorymap.h"
 #else

arch/arm/src/stm32/hardware/stm32_pinmap.h

@@ -180,9 +180,17 @@
 
 #elif defined(CONFIG_STM32_STM32F4XXX)
 #  if defined(CONFIG_STM32_USE_LEGACY_PINMAP)
-#    include "hardware/stm32f40xxx_pinmap_legacy.h"
+#   if defined(CONFIG_STM32_STM32F427A)
+#       include "hardware/stm32f427ax_pinmap_legacy.h"
+#    else
+#       include "hardware/stm32f40xxx_pinmap_legacy.h"
+#    endif
 #  else
-#    include "hardware/stm32f40xxx_pinmap.h"
+#   if defined(CONFIG_STM32_STM32F427A)
+#       include "hardware/stm32f427ax_pinmap.h"
+#    else
+#       include "hardware/stm32f40xxx_pinmap.h"
+#    endif
 #  endif
 
 /* STM32 G4 Family **********************************************************/