stm32/octospi: Add OSPI support for STM32H7 MCUs.

Added a if-statement to `octospi.c` to detect if the targeted MCU is one of
the STM32H7 series.  If that is the case, another set of variables are used
for the `mp_hal_pin_config_alt_static_speed()` function, as well as for
register `OCTOSPI1->CR`.  This allows the STM32H723 and STM32H7B3 series
MCU to use octo-spi flash like the STM32H573 series MCU.

Signed-off-by: nspsck <[email protected]>

Author: nspsck

ports/stm32/octospi.c

@@ -45,19 +45,24 @@
 
 void octospi_init(void) {
     // Configure OCTOSPI pins (allows 1, 2, 4 or 8 line configuration).
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_CS, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_NCS);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_SCK, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_CLK);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO0);
+    #if defined(STM32H7)
+    #define STATIC_AF_OCTOSPI(signal) STATIC_AF_OCTOSPIM_P1_##signal
+    #else
+    #define STATIC_AF_OCTOSPI(signal) STATIC_AF_OCTOSPI1_##signal
+    #endif
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_CS, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(NCS));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_SCK, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(CLK));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO0));
     #if defined(MICROPY_HW_OSPIFLASH_IO1)
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO1);
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO1));
     #if defined(MICROPY_HW_OSPIFLASH_IO2)
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO2);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO3, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO3);
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO2));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO3, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO3));
     #if defined(MICROPY_HW_OSPIFLASH_IO4)
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO4, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO4);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO5, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO5);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO6, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO6);
-    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO7, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI1_IO7);
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO4, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO4));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO5, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO5));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO6, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO6));
+    mp_hal_pin_config_alt_static_speed(MICROPY_HW_OSPIFLASH_IO7, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, MP_HAL_PIN_SPEED_VERY_HIGH, STATIC_AF_OCTOSPI(IO7));
     #endif
     #endif
     #endif
@@ -69,11 +74,19 @@ void octospi_init(void) {
 
     // Configure the OCTOSPI peripheral.
 
+    #if defined(STM32H7)
+    OCTOSPI1->CR =
+        3 << OCTOSPI_CR_FTHRES_Pos // 4 bytes must be available to read/write
+            | 0 << OCTOSPI_CR_FSEL_Pos // FLASH 0 selected
+            | 0 << OCTOSPI_CR_DQM_Pos // dual-memory mode disabled
+    ;
+    #else
     OCTOSPI1->CR =
         3 << OCTOSPI_CR_FTHRES_Pos // 4 bytes must be available to read/write
             | 0 << OCTOSPI_CR_MSEL_Pos // FLASH 0 selected
             | 0 << OCTOSPI_CR_DMM_Pos // dual-memory mode disabled
     ;
+    #endif
 
     OCTOSPI1->DCR1 =
         (MICROPY_HW_OSPIFLASH_SIZE_BITS_LOG2 - 3 - 1) << OCTOSPI_DCR1_DEVSIZE_Pos