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MMU: Add configurable mmu page size support on ESP32C2

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This commit is contained in:
Cao Sen Miao
2022-06-01 10:14:48 +08:00
parent f173016d86
commit 6589daabb9
37 changed files with 153 additions and 132 deletions
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components/bootloader_support/bootloader_flash/include/bootloader_flash_priv.h
+4 -6
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@@ -21,20 +21,18 @@ extern "C" {
#define FLASH_SECTOR_SIZE 0x1000
#define FLASH_BLOCK_SIZE 0x10000
#define MMAP_ALIGNED_MASK 0x0000FFFF
#define MMU_FLASH_MASK (~(SPI_FLASH_MMU_PAGE_SIZE - 1))
//This will be replaced with a kconfig, TODO: IDF-3821
#define MMU_PAGE_SIZE 0x10000
#define MMU_FLASH_MASK (~(MMU_PAGE_SIZE - 1))
/**
* MMU mapping must always be in the unit of a MMU_PAGE_SIZE
* MMU mapping must always be in the unit of a SPI_FLASH_MMU_PAGE_SIZE
* This macro is a helper for you to get needed page nums to be mapped. e.g.:
* Let's say MMU_PAGE_SIZE is 64KB.
* Let's say SPI_FLASH_MMU_PAGE_SIZE is 64KB.
* - v_start = 0x4200_0004
* - size = 4 * 64KB
*
* You should map from 0x4200_0000, then map 5 pages.
*/
#define GET_REQUIRED_MMU_PAGES(size, v_start) ((size + (v_start - (v_start & MMU_FLASH_MASK)) + MMU_PAGE_SIZE - 1) / MMU_PAGE_SIZE)
#define GET_REQUIRED_MMU_PAGES(size, v_start) ((size + (v_start - (v_start & MMU_FLASH_MASK)) + SPI_FLASH_MMU_PAGE_SIZE - 1) / SPI_FLASH_MMU_PAGE_SIZE)
/* SPI commands (actual on-wire commands not SPI controller bitmasks)
Suitable for use with the bootloader_execute_flash_command static function.