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drivers: flash: Implement flash page layout api in mcux driver

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Uses the new flash erase-block-size dts property to implement the flash
page layout api in the mcux flash driver.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2018-01-31 14:22:11 -06:00 • committed by Kumar Gala
commit 262595f09f
2 changed files with 17 additions and 2 deletions
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1
drivers/flash/Kconfig
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@ -141,6 +141,7 @@ config SOC_FLASH_NRF5_RADIO_SYNC
config SOC_FLASH_MCUX
bool "MCUX flash shim driver"
depends on FLASH && HAS_MCUX
select FLASH_HAS_PAGE_LAYOUT
default n
help
Enables the MCUX flash shim driver.

18
drivers/flash/soc_flash_mcux.c
View file

@ -86,6 +86,21 @@ static int flash_mcux_write_protection(struct device *dev, bool enable)
return -EIO;
}
#if defined(CONFIG_FLASH_PAGE_LAYOUT)
static const struct flash_pages_layout dev_layout = {
.pages_count = KB(CONFIG_FLASH_SIZE) / FLASH_ERASE_BLOCK_SIZE,
.pages_size = FLASH_ERASE_BLOCK_SIZE,
};
static void flash_mcux_pages_layout(struct device *dev,
const struct flash_pages_layout **layout,
size_t *layout_size)
{
*layout = &dev_layout;
*layout_size = 1;
}
#endif /* CONFIG_FLASH_PAGE_LAYOUT */
static struct flash_priv flash_data;
static const struct flash_driver_api flash_mcux_api = {
@ -94,8 +109,7 @@ static const struct flash_driver_api flash_mcux_api = {
.write = flash_mcux_write,
.read = flash_mcux_read,
#if defined(CONFIG_FLASH_PAGE_LAYOUT)
.page_layout = (flash_api_pages_layout)
flash_page_layout_not_implemented,
.page_layout = flash_mcux_pages_layout,
#endif
.write_block_size = FSL_FEATURE_FLASH_PFLASH_BLOCK_WRITE_UNIT_SIZE,
};