stm32/mboot: Add support for H7 MCUs, with H743 flash layout.

ports/stm32/mboot/Makefile

@@ -48,6 +48,7 @@ CFLAGS_CORTEX_M = -mthumb
 # Options for particular MCU series
 CFLAGS_MCU_f4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4
 CFLAGS_MCU_f7 = $(CFLAGS_CORTEX_M) -mtune=cortex-m7 -mcpu=cortex-m7
+CFLAGS_MCU_h7 = $(CFLAGS_CORTEX_M) -mtune=cortex-m7 -mcpu=cortex-m7
 CFLAGS_MCU_l4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4
 
 CFLAGS = $(INC) -Wall -Wpointer-arith -Werror -std=gnu99 -nostdlib $(CFLAGS_MOD) $(CFLAGS_EXTRA)

ports/stm32/mboot/mphalport.h

@@ -48,8 +48,13 @@
 #define mp_hal_pin_input(p)     mp_hal_pin_config((p), MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_NONE, 0)
 #define mp_hal_pin_output(p)    mp_hal_pin_config((p), MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_NONE, 0)
 #define mp_hal_pin_open_drain(p) mp_hal_pin_config((p), MP_HAL_PIN_MODE_OPEN_DRAIN, MP_HAL_PIN_PULL_NONE, 0)
+#if defined(STM32H7)
+#define mp_hal_pin_low(p)       (((GPIO_TypeDef*)((p) & ~0xf))->BSRRH = 1 << ((p) & 0xf))
+#define mp_hal_pin_high(p)      (((GPIO_TypeDef*)((p) & ~0xf))->BSRRL = 1 << ((p) & 0xf))
+#else
 #define mp_hal_pin_low(p)       (((GPIO_TypeDef*)((p) & ~0xf))->BSRR = 0x10000 << ((p) & 0xf))
 #define mp_hal_pin_high(p)      (((GPIO_TypeDef*)((p) & ~0xf))->BSRR = 1 << ((p) & 0xf))
+#endif
 #define mp_hal_pin_od_low(p)    mp_hal_pin_low(p)
 #define mp_hal_pin_od_high(p)   mp_hal_pin_high(p)
 #define mp_hal_pin_read(p)      ((((GPIO_TypeDef*)((p) & ~0xf))->IDR >> ((p) & 0xf)) & 1)