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STM32L5: flash: enable support for DBANK == 0

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STM32L5 has option to disable dual bank support.
When this is disabled, the flash page size is changed
from 2k pages to 4k pages. This PR adds support for this
diversity.

Signed-off-by: Wouter Cappelle <wouter.cappelle@crodeon.com>
This commit is contained in:
Wouter Cappelle 2022-01-20 15:23:32 +01:00 committed by Anas Nashif
parent 13faa9aa71
commit e7d5b172d0
1 changed files with 10 additions and 4 deletions
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14
drivers/flash/flash_stm32l5x.c
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@ -229,7 +229,7 @@ static int erase_page(const struct device *dev, unsigned int offset)
return -EINVAL;
}
} else {
page = offset / FLASH_PAGE_SIZE;
page = offset / FLASH_PAGE_SIZE_128_BITS;
LOG_DBG("Erase page %d\n", page);
}
@ -368,9 +368,15 @@ void flash_stm32_page_layout(const struct device *dev,
/* For stm32l562xx & stm32l552xx with 512 KB flash */
if (stm32l5_flash_layout[0].pages_count == 0) {
stm32l5_flash_layout[0].pages_count = FLASH_SIZE
/ FLASH_PAGE_SIZE;
stm32l5_flash_layout[0].pages_size = FLASH_PAGE_SIZE;
if ((regs->OPTR & FLASH_OPTR_DBANK) == FLASH_OPTR_DBANK) {
/* flash with dualbank has 2k pages */
stm32l5_flash_layout[0].pages_count = FLASH_PAGE_NB;
stm32l5_flash_layout[0].pages_size = FLASH_PAGE_SIZE;
} else {
/* flash without dualbank has 4k pages */
stm32l5_flash_layout[0].pages_count = FLASH_PAGE_NB_128_BITS;
stm32l5_flash_layout[0].pages_size = FLASH_PAGE_SIZE_128_BITS;
}
}
}