97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr.h>
|
|
#include <soc.h>
|
|
#include <storage/flash_map.h>
|
|
#include <esp_log.h>
|
|
|
|
#include <esp32/rom/cache.h>
|
|
#include <soc/dport_reg.h>
|
|
#include <bootloader_flash_priv.h>
|
|
|
|
#ifdef CONFIG_BOOTLOADER_MCUBOOT
|
|
#define HDR_ATTR __attribute__((section(".entry_addr"))) __attribute__((used))
|
|
|
|
extern uint32_t _image_irom_start, _image_irom_size, _image_irom_vaddr;
|
|
extern uint32_t _image_drom_start, _image_drom_size, _image_drom_vaddr;
|
|
|
|
void __start(void);
|
|
|
|
static HDR_ATTR void (*_entry_point)(void) = &__start;
|
|
|
|
static int map_rom_segments(void)
|
|
{
|
|
int rc = 0;
|
|
size_t _partition_offset = FLASH_AREA_OFFSET(image_0);
|
|
uint32_t _app_irom_start = _partition_offset +
|
|
(uint32_t)&_image_irom_start;
|
|
uint32_t _app_irom_size = (uint32_t)&_image_irom_size;
|
|
uint32_t _app_irom_vaddr = (uint32_t)&_image_irom_vaddr;
|
|
|
|
uint32_t _app_drom_start = _partition_offset +
|
|
(uint32_t)&_image_drom_start;
|
|
uint32_t _app_drom_size = (uint32_t)&_image_drom_size;
|
|
uint32_t _app_drom_vaddr = (uint32_t)&_image_drom_vaddr;
|
|
|
|
Cache_Read_Disable(0);
|
|
Cache_Flush(0);
|
|
/* Clear the MMU entries that are already set up,
|
|
* so the new app only has the mappings it creates.
|
|
*/
|
|
for (int i = 0; i < DPORT_FLASH_MMU_TABLE_SIZE; i++) {
|
|
DPORT_PRO_FLASH_MMU_TABLE[i] =
|
|
DPORT_FLASH_MMU_TABLE_INVALID_VAL;
|
|
}
|
|
|
|
uint32_t drom_vaddr_addr_aligned = _app_drom_vaddr & MMU_FLASH_MASK;
|
|
uint32_t drom_page_count = bootloader_cache_pages_to_map(_app_drom_size,
|
|
_app_drom_vaddr);
|
|
rc = cache_flash_mmu_set(0, 0, drom_vaddr_addr_aligned, _app_drom_start
|
|
& MMU_FLASH_MASK, 64, drom_page_count);
|
|
rc |= cache_flash_mmu_set(1, 0, drom_vaddr_addr_aligned, _app_drom_start
|
|
& MMU_FLASH_MASK, 64, drom_page_count);
|
|
|
|
uint32_t irom_vaddr_addr_aligned = _app_irom_vaddr & MMU_FLASH_MASK;
|
|
uint32_t irom_page_count = bootloader_cache_pages_to_map(_app_irom_size,
|
|
_app_irom_vaddr);
|
|
rc |= cache_flash_mmu_set(0, 0, irom_vaddr_addr_aligned, _app_irom_start
|
|
& MMU_FLASH_MASK, 64, irom_page_count);
|
|
rc |= cache_flash_mmu_set(1, 0, irom_vaddr_addr_aligned, _app_irom_start
|
|
& MMU_FLASH_MASK, 64, irom_page_count);
|
|
|
|
DPORT_REG_CLR_BIT(DPORT_PRO_CACHE_CTRL1_REG,
|
|
(DPORT_PRO_CACHE_MASK_IRAM0) |
|
|
(DPORT_PRO_CACHE_MASK_IRAM1 & 0) |
|
|
(DPORT_PRO_CACHE_MASK_IROM0 & 0) |
|
|
DPORT_PRO_CACHE_MASK_DROM0 |
|
|
DPORT_PRO_CACHE_MASK_DRAM1);
|
|
|
|
DPORT_REG_CLR_BIT(DPORT_APP_CACHE_CTRL1_REG,
|
|
(DPORT_APP_CACHE_MASK_IRAM0) |
|
|
(DPORT_APP_CACHE_MASK_IRAM1 & 0) |
|
|
(DPORT_APP_CACHE_MASK_IROM0 & 0) |
|
|
DPORT_APP_CACHE_MASK_DROM0 |
|
|
DPORT_APP_CACHE_MASK_DRAM1);
|
|
|
|
esp_rom_Cache_Read_Enable(0);
|
|
return rc;
|
|
}
|
|
#endif
|
|
|
|
void __start(void)
|
|
{
|
|
#ifdef CONFIG_BOOTLOADER_MCUBOOT
|
|
int err = map_rom_segments();
|
|
|
|
if (err != 0) {
|
|
ets_printf("Failed to setup XIP, aborting\n");
|
|
abort();
|
|
}
|
|
#endif
|
|
__esp_platform_start();
|
|
}
|