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bootloader: account for load address when mapping cache pages

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Bootloader used to calculate the number of cache pages assuming that
load address was aligned, while in reality load address for DROM and
IROM was offset by 0x20 bytes from the start of 64kB page. This
caused the bootloader to map one less page if the size of the image
was 0x4..0x1c less than a multiple of 64kB.

Reported in https://esp32.com/viewtopic.php?f=13&t=6952.
This commit is contained in:
Ivan Grokhotkov
2018-09-03 18:15:20 +08:00
parent 182e917d78
commit 96d0f7f5e2
3 changed files with 49 additions and 18 deletions
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7
components/bootloader_support/src/bootloader_flash.c
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@@ -91,8 +91,6 @@ static const char *TAG = "bootloader_flash";
*/
#define MMU_BLOCK0_VADDR 0x3f400000
#define MMU_BLOCK50_VADDR 0x3f720000
#define MMU_FLASH_MASK 0xffff0000
#define MMU_BLOCK_SIZE 0x00010000
static bool mapped;
@@ -112,10 +110,11 @@ const void *bootloader_mmap(uint32_t src_addr, uint32_t size)
}
uint32_t src_addr_aligned = src_addr & MMU_FLASH_MASK;
uint32_t count = (size + (src_addr - src_addr_aligned) + 0xffff) / MMU_BLOCK_SIZE;
uint32_t count = bootloader_cache_pages_to_map(size, src_addr);
Cache_Read_Disable(0);
Cache_Flush(0);
ESP_LOGD(TAG, "mmu set paddr=%08x count=%d", src_addr_aligned, count );
ESP_LOGD(TAG, "mmu set paddr=%08x count=%d size=%x src_addr=%x src_addr_aligned=%x",
src_addr & MMU_FLASH_MASK, count, size, src_addr, src_addr_aligned );
int e = cache_flash_mmu_set(0, 0, MMU_BLOCK0_VADDR, src_addr_aligned, 64, count);
if (e != 0) {
ESP_LOGE(TAG, "cache_flash_mmu_set failed: %d\n", e);