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partition_table: Expanding the space under the bootloader

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Allows you to move the partition table, it gives more space for the bootloader.
Added a new utility - parttool.py. This utility can search for the offset and/or size of the partitions by name and type/subtype. Use for getting APP_OFFSET and PHY_DATA_OFFSET.
The linker(esp32.bootloader.ld) made changes that allow you to write a custom bootloader code more.

TW14125
This commit is contained in:
Konstantin Kondrashov
2018-04-19 09:42:26 +05:00
parent d441dd32ea
commit 3e0ac4db79
16 changed files with 251 additions and 123 deletions
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6
components/spi_flash/partition.c
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@@ -17,7 +17,7 @@
#include <string.h>
#include <stdio.h>
#include <sys/lock.h>
#include "esp_flash_partitions.h"
#include "esp_attr.h"
#include "esp_flash_data_types.h"
#include "esp_spi_flash.h"
@@ -145,14 +145,14 @@ static esp_err_t load_partitions()
const uint32_t* ptr;
spi_flash_mmap_handle_t handle;
// map 64kB block where partition table is located
esp_err_t err = spi_flash_mmap(ESP_PARTITION_TABLE_ADDR & 0xffff0000,
esp_err_t err = spi_flash_mmap(ESP_PARTITION_TABLE_OFFSET & 0xffff0000,
SPI_FLASH_SEC_SIZE, SPI_FLASH_MMAP_DATA, (const void**) &ptr, &handle);
if (err != ESP_OK) {
return err;
}
// calculate partition address within mmap-ed region
const esp_partition_info_t* it = (const esp_partition_info_t*)
(ptr + (ESP_PARTITION_TABLE_ADDR & 0xffff) / sizeof(*ptr));
(ptr + (ESP_PARTITION_TABLE_OFFSET & 0xffff) / sizeof(*ptr));
const esp_partition_info_t* end = it + SPI_FLASH_SEC_SIZE / sizeof(*it);
// tail of the linked list of partitions
partition_list_item_t* last = NULL;