xtensa/esp32s2: Enable booting from MCUboot bootloader

Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
This commit is contained in:
Gustavo Henrique Nihei 2021-09-13 13:56:55 -03:00 committed by Xiang Xiao
parent e72680bb46
commit 800678ca78
10 changed files with 1055 additions and 80 deletions

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@ -176,14 +176,6 @@ config ESP32S2_RT_TIMER
select ESP32S2_TIMER
default n
config ESP32S2_PARTITION
bool "ESP32S2 Partition"
default n
select ESP32S2_SPIFLASH
---help---
Decode esp-idf's partition file and initialize
partition by nuttx MTD.
config ESP32S2_RUN_IRAM
bool "Run from IRAM"
default n
@ -620,9 +612,50 @@ endmenu # ESP32S2_SPI
menu "SPI Flash configuration"
depends on ESP32S2_SPIFLASH
if ESP32S2_HAVE_OTA_PARTITION
comment "Application Image OTA Update support"
config ESP32S2_OTA_PRIMARY_SLOT_OFFSET
hex "Application image primary slot offset"
default "0x10000"
config ESP32S2_OTA_PRIMARY_SLOT_DEVPATH
string "Application image primary slot device path"
default "/dev/ota0"
config ESP32S2_OTA_SECONDARY_SLOT_OFFSET
hex "Application image secondary slot offset"
default "0x110000"
config ESP32S2_OTA_SECONDARY_SLOT_DEVPATH
string "Application image secondary slot device path"
default "/dev/ota1"
config ESP32S2_OTA_SLOT_SIZE
hex "Application image slot size (in bytes)"
default "0x100000"
config ESP32S2_OTA_SCRATCH_OFFSET
hex "Scratch partition offset"
default "0x210000"
config ESP32S2_OTA_SCRATCH_SIZE
hex "Scratch partition size"
default "0x40000"
config ESP32S2_OTA_SCRATCH_DEVPATH
string "Scratch partition device path"
default "/dev/otascratch"
endif
comment "General MTD configuration"
config ESP32S2_MTD_OFFSET
hex "MTD base address in SPI Flash"
default 0x180000
default 0x180000 if !ESP32S2_HAVE_OTA_PARTITION
default 0x250000 if ESP32S2_HAVE_OTA_PARTITION
---help---
MTD base address in SPI Flash.
@ -640,7 +673,7 @@ config ESP32S2_SPIFLASH_DEBUG
Enable this option, read and write of SPI Flash
will show input arguments and result.
endmenu # ESP32S2_SPIFLASH
endmenu # SPI Flash configuration
menu "SPI RAM Config"
depends on ESP32S2_SPIRAM
@ -866,6 +899,81 @@ config ESP32S2_FREERUN
endmenu # Timer/counter Configuration
endif # ESP32S2_TIMER
config ESP32S2_HAVE_OTA_PARTITION
bool
default n
menu "Application Image Configuration"
choice
prompt "Application Image Format"
default ESP32S2_APP_FORMAT_LEGACY
---help---
Depending on the chosen 2nd stage bootloader, the application may
be required to be perform a specific startup routine. Furthermore,
the image binary must be formatted according to the definition from
the 2nd stage bootloader.
config ESP32S2_APP_FORMAT_LEGACY
bool "Legacy format"
---help---
This is the legacy application image format, as supported by the ESP-IDF
2nd stage bootloader.
config ESP32S2_APP_FORMAT_MCUBOOT
bool "MCUboot-bootable format"
select ESP32S2_HAVE_OTA_PARTITION
depends on EXPERIMENTAL
---help---
The Espressif port of MCUboot supports the loading of unsegmented firmware
images.
comment "MCUboot support depends on CONFIG_EXPERIMENTAL"
depends on !EXPERIMENTAL
endchoice # Application Image Format
choice
prompt "Target slot for image flashing"
default ESP32S2_ESPTOOL_TARGET_PRIMARY
depends on ESP32S2_HAVE_OTA_PARTITION
---help---
Slot to which ESPTOOL will flash the generated binary image.
config ESP32S2_ESPTOOL_TARGET_PRIMARY
bool "Application image primary slot"
---help---
This assumes that the generated image is already pre-validated.
This is the recommended option for the initial stages of the
application firmware image development.
config ESP32S2_ESPTOOL_TARGET_SECONDARY
bool "Application image secondary slot"
---help---
The application needs to confirm the generated image as valid,
otherwise the bootloader may consider it invalid and perform the
rollback of the update after a reset.
This is the choice most suitable for the development and verification
of a secure firmware update workflow.
endchoice
config ESP32S2_APP_MCUBOOT_HEADER_SIZE
int "Application image header size (in bytes)"
default 32
depends on ESP32S2_APP_FORMAT_MCUBOOT
endmenu # Application Image Configuration
if ESP32S2_APP_FORMAT_LEGACY
config ESP32S2_PARTITION
bool "ESP32-S2 Partition"
default n
select ESP32S2_SPIFLASH
---help---
Decode partition file and initialize partition as MTD.
menu "Partition Configuration"
depends on ESP32S2_PARTITION
@ -877,7 +985,9 @@ config ESP32S2_PARTITION_MOUNT
string "Partition mount point"
default "/dev/esp/partition/"
endmenu # ESP32S2_PARTITION
endmenu # Partition Configuration
endif
menu "AES accelerate"
depends on ESP32S2_AES_ACCELERATOR

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@ -33,7 +33,8 @@
#include "xtensa.h"
#include "xtensa_attr.h"
#include "hardware/esp32s2_rtccntl.h"
#include "hardware/esp32s2_cache_memory.h"
#include "hardware/esp32s2_extmem.h"
#include "esp32s2_clockconfig.h"
#include "esp32s2_region.h"
#include "esp32s2_start.h"
@ -50,6 +51,67 @@
# define showprogress(c)
#endif
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
#define PRIMARY_SLOT_OFFSET CONFIG_ESP32S2_OTA_PRIMARY_SLOT_OFFSET
#define HDR_ATTR __attribute__((section(".entry_addr"))) \
__attribute__((used))
/* Cache MMU block size */
#define MMU_BLOCK_SIZE 0x00010000 /* 64 KB */
/* Cache MMU address mask (MMU tables ignore bits which are zero) */
#define MMU_FLASH_MASK (~(MMU_BLOCK_SIZE - 1))
#endif
/****************************************************************************
* Private Types
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
extern uint32_t _image_irom_vma;
extern uint32_t _image_irom_lma;
extern uint32_t _image_irom_size;
extern uint32_t _image_drom_vma;
extern uint32_t _image_drom_lma;
extern uint32_t _image_drom_size;
#endif
/****************************************************************************
* ROM Function Prototypes
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
extern int ets_printf(const char *fmt, ...);
extern uint32_t cache_suspend_icache(void);
extern void cache_resume_icache(uint32_t val);
extern void cache_invalidate_icache_all(void);
extern int cache_ibus_mmu_set(uint32_t ext_ram, uint32_t vaddr,
uint32_t paddr, uint32_t psize, uint32_t num,
uint32_t fixed);
#endif
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
noreturn_function void __start(void);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
HDR_ATTR static void (*_entry_point)(void) = &__start;
#endif
/****************************************************************************
* Public Data
****************************************************************************/
@ -60,29 +122,28 @@ uint32_t g_idlestack[IDLETHREAD_STACKWORDS]
aligned_data(16) locate_data(".noinit");
/****************************************************************************
* Public Functions
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: __start
* Name: __esp32s2_start
*
* Description:
* We arrive here after the bootloader finished loading the program from
* flash. The hardware is mostly uninitialized, and the app CPU is in
* reset. We do have a stack, so we can do the initialization in C.
* Perform base configuration of the chip for code execution.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
void IRAM_ATTR __start(void)
void IRAM_ATTR __esp32s2_start(void)
{
uint32_t *dest;
uint32_t regval;
uint32_t sp;
/* Disable any wdt enabled by bootloader */
esp32s2_wdt_early_deinit();
regval = getreg32(DR_REG_BB_BASE + 0x48); /* DR_REG_BB_BASE+48 */
regval &= ~(1 << 14);
putreg32(regval, DR_REG_BB_BASE + 0x48);
@ -95,18 +156,6 @@ void IRAM_ATTR __start(void)
up_irq_disable();
/* Set CPU frequency configured in board.h */
esp32s2_clockconfig();
esp32s2_lowsetup();
#ifdef USE_EARLYSERIALINIT
/* Perform early serial initialization */
xtensa_earlyserialinit();
#endif
/* Move the stack to a known location. Although we were given a stack
* pointer at start-up, we don't know where that stack pointer is
* positioned with respect to our memory map. The only safe option is to
@ -124,29 +173,187 @@ void IRAM_ATTR __start(void)
__asm__ __volatile__ ("wsr %0, vecbase\n"::"r" (&_init_start));
showprogress('A');
/* Set .bss to zero */
/* Clear .bss. We'll do this inline (vs. calling memset) just to be
* certain that there are no issues with the state of global variables.
*/
for (dest = &_sbss; dest < &_ebss; dest++)
for (uint32_t *dest = &_sbss; dest < &_ebss; dest++)
{
*dest = 0;
}
showprogress('B');
/* The 2nd stage bootloader enables RTC WDT to check on startup sequence
* related issues in application. Hence disable that as we are about to
* start the NuttX environment.
*/
esp32s2_wdt_early_deinit();
/* Set CPU frequency configured in board.h */
esp32s2_clockconfig();
#ifndef CONFIG_SUPPRESS_UART_CONFIG
/* Configure the UART so we can get debug output */
esp32s2_lowsetup();
#endif
#ifdef USE_EARLYSERIALINIT
/* Perform early serial initialization */
xtensa_earlyserialinit();
#endif
showprogress('A');
/* Initialize onboard resources */
esp32s2_board_initialize();
showprogress('C');
showprogress('B');
/* Bring up NuttX */
nx_start();
for (; ; ); /* Should not return */
}
/****************************************************************************
* Name: calc_mmu_pages
*
* Description:
* Calculate the number of cache pages to map.
*
* Input Parameters:
* size - Size of data to map
* vaddr - Virtual address where data will be mapped
*
* Returned Value:
* Number of cache MMU pages required to do the mapping.
*
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
static inline uint32_t calc_mmu_pages(uint32_t size, uint32_t vaddr)
{
return (size + (vaddr - (vaddr & MMU_FLASH_MASK)) + MMU_BLOCK_SIZE - 1) /
MMU_BLOCK_SIZE;
}
#endif
/****************************************************************************
* Name: map_rom_segments
*
* Description:
* Configure the MMU and Cache peripherals for accessing ROM code and data.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
static int map_rom_segments(void)
{
uint32_t rc = 0;
uint32_t regval;
uint32_t drom_lma_aligned;
uint32_t drom_vma_aligned;
uint32_t drom_page_count;
uint32_t irom_lma_aligned;
uint32_t irom_vma_aligned;
uint32_t irom_page_count;
size_t partition_offset = PRIMARY_SLOT_OFFSET;
uint32_t app_irom_lma = partition_offset + (uint32_t)&_image_irom_lma;
uint32_t app_irom_size = (uint32_t)&_image_irom_size;
uint32_t app_irom_vma = (uint32_t)&_image_irom_vma;
uint32_t app_drom_lma = partition_offset + (uint32_t)&_image_drom_lma;
uint32_t app_drom_size = (uint32_t)&_image_drom_size;
uint32_t app_drom_vma = (uint32_t)&_image_drom_vma;
uint32_t autoload = cache_suspend_icache();
cache_invalidate_icache_all();
/* Clear the MMU entries that are already set up, so the new app only has
* the mappings it creates.
*/
for (size_t i = 0; i < FLASH_MMU_TABLE_SIZE; i++)
{
FLASH_MMU_TABLE[i] = MMU_TABLE_INVALID_VAL;
}
drom_lma_aligned = app_drom_lma & MMU_FLASH_MASK;
drom_vma_aligned = app_drom_vma & MMU_FLASH_MASK;
drom_page_count = calc_mmu_pages(app_drom_size, app_drom_vma);
rc = cache_ibus_mmu_set(MMU_ACCESS_FLASH, drom_vma_aligned,
drom_lma_aligned, 64, (int)drom_page_count, 0);
irom_lma_aligned = app_irom_lma & MMU_FLASH_MASK;
irom_vma_aligned = app_irom_vma & MMU_FLASH_MASK;
irom_page_count = calc_mmu_pages(app_irom_size, app_irom_vma);
if (app_irom_lma + app_irom_size > IRAM1_ADDRESS_LOW)
{
rc |= cache_ibus_mmu_set(MMU_ACCESS_FLASH, IRAM0_ADDRESS_LOW, 0, 64,
64, 1);
rc |= cache_ibus_mmu_set(MMU_ACCESS_FLASH, IRAM1_ADDRESS_LOW, 0, 64,
64, 1);
regval = getreg32(EXTMEM_PRO_ICACHE_CTRL1_REG);
regval &= ~(EXTMEM_PRO_ICACHE_MASK_IRAM1);
putreg32(regval, EXTMEM_PRO_ICACHE_CTRL1_REG);
}
rc |= cache_ibus_mmu_set(MMU_ACCESS_FLASH, irom_vma_aligned,
irom_lma_aligned, 64, (int)irom_page_count, 0);
regval = getreg32(EXTMEM_PRO_ICACHE_CTRL1_REG);
regval &= ~(EXTMEM_PRO_ICACHE_MASK_IRAM0 |
EXTMEM_PRO_ICACHE_MASK_DROM0);
putreg32(regval, EXTMEM_PRO_ICACHE_CTRL1_REG);
cache_resume_icache(autoload);
return (int)rc;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: __start
*
* Description:
* We arrive here after the bootloader finished loading the program from
* flash. The hardware is mostly uninitialized, and the app CPU is in
* reset. We do have a stack, so we can do the initialization in C.
*
* The app CPU will remain in reset unless CONFIG_SMP is selected and
* up_cpu_start() is called later in the bring-up sequence.
*
****************************************************************************/
void __start(void)
{
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
if (map_rom_segments() != 0)
{
ets_printf("Failed to setup XIP, aborting\n");
while (true);
}
#endif
__esp32s2_start();
while (true); /* Should not return */
}

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@ -0,0 +1,153 @@
/****************************************************************************
* arch/xtensa/src/esp32s2/hardware/esp32s2_cache_memory.h
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_CACHE_MEMORY_H_
#define __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_CACHE_MEMORY_H_
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdint.h>
#include "esp32s2_soc.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* IRAM0 is connected with Cache IBUS0 */
#define IRAM0_ADDRESS_LOW 0x40000000
#define IRAM0_ADDRESS_HIGH 0x40400000
#define IRAM0_CACHE_ADDRESS_LOW 0x40080000
#define IRAM0_CACHE_ADDRESS_HIGH 0x40400000
/* IRAM1 is connected with Cache IBUS1 */
#define IRAM1_ADDRESS_LOW 0x40400000
#define IRAM1_ADDRESS_HIGH 0x40800000
/* DROM0 is connected with Cache IBUS2 */
#define DROM0_ADDRESS_LOW 0x3f000000
#define DROM0_ADDRESS_HIGH 0x3f400000
/* DRAM0 is connected with Cache DBUS0 */
#define DRAM0_ADDRESS_LOW 0x3fc00000
#define DRAM0_ADDRESS_HIGH 0x40000000
#define DRAM0_CACHE_ADDRESS_LOW 0x3fc00000
#define DRAM0_CACHE_ADDRESS_HIGH 0x3ff80000
/* DRAM1 is connected with Cache DBUS1 */
#define DRAM1_ADDRESS_LOW 0x3f800000
#define DRAM1_ADDRESS_HIGH 0x3fc00000
/* DPORT is connected with Cache DBUS2 */
#define DPORT_ADDRESS_LOW 0x3f400000
#define DPORT_ADDRESS_HIGH 0x3f800000
#define DPORT_CACHE_ADDRESS_LOW 0x3f500000
#define DPORT_CACHE_ADDRESS_HIGH 0x3f800000
#define BUS_SIZE(bus_name) (bus_name##_ADDRESS_HIGH - \
bus_name##_ADDRESS_LOW)
#define ADDRESS_IN_BUS(bus_name, vaddr) ((vaddr) >= bus_name##_ADDRESS_LOW \
&& (vaddr) < \
bus_name##_ADDRESS_HIGH)
#define ADDRESS_IN_IRAM0(vaddr) ADDRESS_IN_BUS(IRAM0, vaddr)
#define ADDRESS_IN_IRAM0_CACHE(vaddr) ADDRESS_IN_BUS(IRAM0_CACHE, vaddr)
#define ADDRESS_IN_IRAM1(vaddr) ADDRESS_IN_BUS(IRAM1, vaddr)
#define ADDRESS_IN_DROM0(vaddr) ADDRESS_IN_BUS(DROM0, vaddr)
#define ADDRESS_IN_DRAM0(vaddr) ADDRESS_IN_BUS(DRAM0, vaddr)
#define ADDRESS_IN_DRAM0_CACHE(vaddr) ADDRESS_IN_BUS(DRAM0_CACHE, vaddr)
#define ADDRESS_IN_DRAM1(vaddr) ADDRESS_IN_BUS(DRAM1, vaddr)
#define ADDRESS_IN_DPORT(vaddr) ADDRESS_IN_BUS(DPORT, vaddr)
#define ADDRESS_IN_DPORT_CACHE(vaddr) ADDRESS_IN_BUS(DPORT_CACHE, vaddr)
#define BUS_IRAM0_CACHE_SIZE BUS_SIZE(IRAM0_CACHE)
#define BUS_IRAM1_CACHE_SIZE BUS_SIZE(IRAM1)
#define BUS_IROM0_CACHE_SIZE BUS_SIZE(IROM0)
#define BUS_DROM0_CACHE_SIZE BUS_SIZE(DROM0)
#define BUS_DRAM0_CACHE_SIZE BUS_SIZE(DRAM0_CACHE)
#define BUS_DRAM1_CACHE_SIZE BUS_SIZE(DRAM1)
#define BUS_DPORT_CACHE_SIZE BUS_SIZE(DPORT)
#define PRO_CACHE_IBUS0 0
#define PRO_CACHE_IBUS0_MMU_START 0
#define PRO_CACHE_IBUS0_MMU_END 0x100
#define PRO_CACHE_IBUS1 1
#define PRO_CACHE_IBUS1_MMU_START 0x100
#define PRO_CACHE_IBUS1_MMU_END 0x200
#define PRO_CACHE_IBUS2 2
#define PRO_CACHE_IBUS2_MMU_START 0x200
#define PRO_CACHE_IBUS2_MMU_END 0x300
#define PRO_CACHE_DBUS0 3
#define PRO_CACHE_DBUS0_MMU_START 0x300
#define PRO_CACHE_DBUS0_MMU_END 0x400
#define PRO_CACHE_DBUS1 4
#define PRO_CACHE_DBUS1_MMU_START 0x400
#define PRO_CACHE_DBUS1_MMU_END 0x500
#define PRO_CACHE_DBUS2 5
#define PRO_CACHE_DBUS2_MMU_START 0x500
#define PRO_CACHE_DBUS2_MMU_END 0x600
#define ICACHE_MMU_SIZE 0x300
#define DCACHE_MMU_SIZE 0x300
#define MMU_BUS_START(i) ((i) * 0x100)
#define MMU_BUS_SIZE 0x100
#define MMU_INVALID BIT(14)
#define MMU_ACCESS_FLASH BIT(15)
#define MMU_ACCESS_SPIRAM BIT(16)
#define FLASH_MMU_TABLE ((volatile uint32_t *)DR_REG_MMU_TABLE)
#define FLASH_MMU_TABLE_SIZE (ICACHE_MMU_SIZE / sizeof(uint32_t))
#define MMU_TABLE_INVALID_VAL 0x4000
#define FLASH_MMU_TABLE_INVALID_VAL DPORT_MMU_TABLE_INVALID_VAL
#define MMU_ADDRESS_MASK 0x3fff
#define MMU_PAGE_SIZE 0x10000
#define BUS_ADDR_SIZE 0x400000
#define BUS_ADDR_MASK (BUS_ADDR_SIZE - 1)
#define BUS_NUM_MASK 0x3
#define CACHE_MEMORY_BANK_SIZE 8192
#define CACHE_MEMORY_BANK_NUM 4
#define CACHE_MEMORY_BANK_NUM_MASK 0x3
#define CACHE_MEMORY_LAYOUT_SHIFT 4
#define CACHE_MEMORY_LAYOUT_SHIFT0 0
#define CACHE_MEMORY_LAYOUT_SHIFT1 4
#define CACHE_MEMORY_LAYOUT_SHIFT2 8
#define CACHE_MEMORY_LAYOUT_SHIFT3 12
#define CACHE_MEMORY_LAYOUT_MASK 0xf
#define CACHE_MEMORY_BANK0_ADDR 0x3ffb0000
#define CACHE_MEMORY_BANK1_ADDR 0x3ffb2000
#define CACHE_MEMORY_BANK2_ADDR 0x3ffb4000
#define CACHE_MEMORY_BANK3_ADDR 0x3ffb6000
#endif /* __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_CACHE_MEMORY_H_ */

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@ -0,0 +1,69 @@
/****************************************************************************
* arch/xtensa/src/esp32s2/hardware/esp32s2_extmem.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_EXTMEM_H_
#define __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_EXTMEM_H_
/****************************************************************************
* Included Files
****************************************************************************/
#include "esp32s2_soc.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define EXTMEM_PRO_ICACHE_CTRL1_REG (DR_REG_EXTMEM_BASE + 0x044)
/* EXTMEM_PRO_ICACHE_MASK_BUS2 : R/W ;bitpos:[2] ;default: 1'b1 ;
* description: The bit is used to disable ibus2
* 0: enable 1: disable
*/
#define EXTMEM_PRO_ICACHE_MASK_BUS2 (BIT(2))
#define EXTMEM_PRO_ICACHE_MASK_BUS2_M (BIT(2))
#define EXTMEM_PRO_ICACHE_MASK_BUS2_V 0x1
#define EXTMEM_PRO_ICACHE_MASK_BUS2_S 2
/* EXTMEM_PRO_ICACHE_MASK_BUS1 : R/W ;bitpos:[1] ;default: 1'b1 ;
* description: The bit is used to disable ibus1
* 0: enable 1: disable
*/
#define EXTMEM_PRO_ICACHE_MASK_BUS1 (BIT(1))
#define EXTMEM_PRO_ICACHE_MASK_BUS1_M (BIT(1))
#define EXTMEM_PRO_ICACHE_MASK_BUS1_V 0x1
#define EXTMEM_PRO_ICACHE_MASK_BUS1_S 1
/* EXTMEM_PRO_ICACHE_MASK_BUS0 : R/W ;bitpos:[0] ;default: 1'b1 ;
* description: The bit is used to disable ibus0
* 0: enable 1: disable
*/
#define EXTMEM_PRO_ICACHE_MASK_BUS0 (BIT(0))
#define EXTMEM_PRO_ICACHE_MASK_BUS0_M (BIT(0))
#define EXTMEM_PRO_ICACHE_MASK_BUS0_V 0x1
#define EXTMEM_PRO_ICACHE_MASK_BUS0_S 0
#define EXTMEM_PRO_ICACHE_MASK_IRAM0 EXTMEM_PRO_ICACHE_MASK_BUS0
#define EXTMEM_PRO_ICACHE_MASK_IRAM1 EXTMEM_PRO_ICACHE_MASK_BUS1
#define EXTMEM_PRO_ICACHE_MASK_DROM0 EXTMEM_PRO_ICACHE_MASK_BUS2
#endif /* __ARCH_XTENSA_SRC_ESP32S2_HARDWARE_ESP32S2_EXTMEM_H_ */

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@ -27,10 +27,14 @@ LDSCRIPT1 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_out.ld
LDSCRIPT3 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_rom.ld
LDSCRIPT4 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_peripherals.ld
ifeq ($(CONFIG_ESP32S2_RUN_IRAM),y)
LDSCRIPT2 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_iram.ld
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_MCUBOOT),y)
LDSCRIPT2 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_mcuboot.ld
else
ifeq ($(CONFIG_ESP32S2_RUN_IRAM),y)
LDSCRIPT2 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_iram.ld
else
LDSCRIPT2 = $(BOARD_DIR)$(DELIM)scripts$(DELIM)esp32s2_flash.ld
endif
endif
ifeq ($(CONFIG_CYGWIN_WINTOOL),y)

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@ -46,9 +46,34 @@
#define I_D_RAM_SIZE DATA_RAM_END - DRAM_ORG
#ifdef CONFIG_ESP32S2_FLASH_2M
# define FLASH_SIZE 0x200000
#elif defined (CONFIG_ESP32S2_FLASH_4M)
# define FLASH_SIZE 0x400000
#elif defined (CONFIG_ESP32S2_FLASH_8M)
# define FLASH_SIZE 0x800000
#elif defined (CONFIG_ESP32S2_FLASH_16M)
# define FLASH_SIZE 0x1000000
#endif
MEMORY
{
/* All these values assume the flash cache is on, and have the blocks this
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
/* The origin values for "metadata" and "ROM" memory regions are the actual
* load addresses.
*
* NOTE: The memory region starting from 0x0 with length represented by
* CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE is reserved for the MCUboot header,
* which will be prepended to the binary file by the "imgtool" during the
* signing of firmware image.
*/
metadata (RX) : org = CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE, len = 0x20
ROM (RX) : org = CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE + 0x20,
len = FLASH_SIZE - (CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE + 0x20)
#endif
/* Below values assume the flash cache is on, and have the blocks this
* uses subtracted from the length of the various regions. The 'data access
* port' dram/drom regions map to the same iram/irom regions but are
* connected to the data port of the CPU and eg allow bytewise access.
@ -58,26 +83,57 @@ MEMORY
iram0_0_seg (RX) : org = IRAM_ORG, len = I_D_RAM_SIZE
/* Even though the segment name is iram, it is actually mapped to flash */
/* Flash mapped instruction data. */
iram0_2_seg (RX) : org = 0x40080020, len = 0x780000-0x20
/* (0x20 offset above is a convenience for the app binary image generation.
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
irom0_0_seg (RX) : org = 0x40080020, len = FLASH_SIZE
#else
/* The 0x20 offset is a convenience for the app binary image generation.
* Flash cache has 64KB pages. The .bin file which is flashed to the chip
* has a 0x18 byte file header, and each segment has a 0x08 byte segment
* header. Setting this offset makes it simple to meet the flash cache MMU's
* constraint that (paddr % 64KB == vaddr % 64KB).)
* constraint that (paddr % 64KB == vaddr % 64KB).
*/
irom0_0_seg (RX) : org = 0x40080020, len = FLASH_SIZE - 0x20
#endif
/* Shared data RAM, excluding memory reserved for bootloader and ROM
* bss/data/stack.
*/
dram0_0_seg (RW) : org = DRAM_ORG, len = I_D_RAM_SIZE
/* Flash mapped constant data */
drom0_0_seg (R) : org = 0x3f000020, len = 0x3f0000-0x20
#ifdef CONFIG_ESP32S2_APP_FORMAT_MCUBOOT
/* The DROM segment origin is offset by 0x40 for mirroring the actual ROM
* image layout:
* 0x0 - 0x1F : MCUboot header
* 0x20 - 0x3F : Application image metadata section
* 0x40 onwards: ROM code and data
* This is required to meet the following constraint from the external
* flash MMU:
* VMA % 64KB == LMA % 64KB
* i.e. the lower 16 bits of both the virtual address (address seen by the
* CPU) and the load address (physical address of the external flash) must
* be equal.
*/
drom0_0_seg (R) : org = 0x3f000000 + (CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE + 0x20),
len = FLASH_SIZE - (CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE + 0x20)
#else
/* The 0x20 offset is a convenience for the app binary image generation.
* Flash cache has 64KB pages. The .bin file which is flashed to the chip
* has a 0x18 byte file header, and each segment has a 0x08 byte segment
* header. Setting this offset makes it simple to meet the flash cache MMU's
* constraint that (paddr % 64KB == vaddr % 64KB).
*/
drom0_0_seg (R) : org = 0x3f000020, len = FLASH_SIZE - 0x20
#endif
/* RTC fast memory (executable). Persists over deep sleep. */
@ -90,5 +146,8 @@ MEMORY
rtc_slow_seg(RW) : org = 0x50000000 + CONFIG_ESP32S2_ULP_COPROC_RESERVE_MEM,
len = 0x2000 - CONFIG_ESP32S2_ULP_COPROC_RESERVE_MEM
/* RTC fast memory (same block as above), viewed from data bus */
rtc_data_seg(RW) : org = 0x3ff9e000, len = 0x2000
}

View File

@ -198,7 +198,7 @@ SECTIONS
. += 16;
_etext = .;
} >iram0_2_seg
} >irom0_0_seg
.rtc.text :
{

View File

@ -0,0 +1,317 @@
/****************************************************************************
* boards/xtensa/esp32s2/esp32s2-saola-1/scripts/esp32s2_mcuboot.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* Default entry point: */
ENTRY(__start);
SECTIONS
{
.metadata :
{
/* Magic for load header */
LONG(0xace637d3)
/* Application entry point address */
KEEP(*(.entry_addr))
/* IRAM metadata:
* - Destination address (VMA) for IRAM region
* - Flash offset (LMA) for start of IRAM region
* - Size of IRAM region
*/
LONG(ADDR(.iram0.vectors))
LONG(LOADADDR(.iram0.vectors))
LONG(LOADADDR(.iram0.text) + SIZEOF(.iram0.text) - LOADADDR(.iram0.vectors))
/* DRAM metadata:
* - Destination address (VMA) for DRAM region
* - Flash offset (LMA) for start of DRAM region
* - Size of DRAM region
*/
LONG(ADDR(.dram0.data))
LONG(LOADADDR(.dram0.data))
LONG(SIZEOF(.dram0.data))
} >metadata
_image_drom_vma = ADDR(.flash.rodata);
_image_drom_lma = LOADADDR(.flash.rodata);
_image_drom_size = LOADADDR(.flash.rodata) + SIZEOF(.flash.rodata) - _image_drom_lma;
.flash.rodata :
{
_srodata = ABSOLUTE(.);
*(EXCLUDE_FILE (esp32s2_start.*) .rodata)
*(EXCLUDE_FILE (esp32s2_start.*) .rodata.*)
*(.srodata.*)
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
*(.xt_except_table)
*(.gcc_except_table .gcc_except_table.*)
*(.gnu.linkonce.e.*)
*(.gnu.version_r)
KEEP(*(.eh_frame))
. = (. + 3) & ~ 3;
/* C++ constructor and destructor tables, properly ordered: */
_sinit = ABSOLUTE(.);
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
_einit = ABSOLUTE(.);
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
/* C++ exception handlers table: */
__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
*(.xt_except_desc)
*(.gnu.linkonce.h.*)
__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
*(.xt_except_desc_end)
*(.dynamic)
*(.gnu.version_d)
. = ALIGN(4); /* This table MUST be 4-byte aligned */
_erodata = ABSOLUTE(.);
/* Literals are also RO data. */
_lit4_start = ABSOLUTE(.);
*(*.lit4)
*(.lit4.*)
*(.gnu.linkonce.lit4.*)
_lit4_end = ABSOLUTE(.);
. = ALIGN(4);
} >drom0_0_seg AT>ROM
/* Send .iram0 code to iram */
.iram0.vectors :
{
_iram_start = ABSOLUTE(.);
/* Vectors go to IRAM. */
_init_start = ABSOLUTE(.);
/* Vectors according to builds/RF-2015.2-win32/esp108_v1_2_s5_512int_2/config.html */
. = 0x0;
KEEP (*(.window_vectors.text));
. = 0x180;
KEEP (*(.xtensa_level2_vector.text));
. = 0x1c0;
KEEP (*(.xtensa_level3_vector.text));
. = 0x200;
KEEP (*(.xtensa_level4_vector.text));
. = 0x240;
KEEP (*(.xtensa_level5_vector.text));
. = 0x280;
KEEP (*(.debug_exception_vector.text));
. = 0x2c0;
KEEP (*(.nmi_vector.text));
. = 0x300;
KEEP (*(.kernel_exception_vector.text));
. = 0x340;
KEEP (*(.user_exception_vector.text));
. = 0x3c0;
KEEP (*(.double_exception_vector.text));
. = 0x400;
*(.*_vector.literal)
. = ALIGN (16);
*(.entry.text)
*(.init.literal)
*(.init)
_init_end = ABSOLUTE(.);
} >iram0_0_seg AT>ROM
.iram0.text :
{
/* Code marked as running out of IRAM */
*(.iram1 .iram1.*)
esp32s2_start.*(.literal .text .literal.* .text.*)
/* align + add 16B for CPU dummy speculative instr. fetch */
. = ALIGN(4) + 16;
_iram_text = ABSOLUTE(.);
} >iram0_0_seg AT>ROM
.dram0.dummy (NOLOAD):
{
/* This section is required to skip .iram0.text area because iram0_0_seg
* and dram0_0_seg reflect the same address space on different buses.
*/
. = ORIGIN(dram0_0_seg) + _iram_end - _iram_start;
} >dram0_0_seg
/* Shared RAM */
.dram0.bss (NOLOAD) :
{
/* .bss initialized on power-up */
. = ALIGN (8);
_sbss = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
KEEP (*(.bss))
*(.bss.*)
*(.share.mem)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(8);
_ebss = ABSOLUTE(.);
} >dram0_0_seg
.noinit (NOLOAD):
{
/* This section contains data that is not initialized during load,
* or during the application's initialization sequence.
*/
. = ALIGN(4);
*(.noinit)
*(.noinit.*)
. = ALIGN(4);
} >dram0_0_seg
.dram0.data :
{
/* .data initialized on power-up in ROMed configurations. */
_sdata = ABSOLUTE(.);
KEEP (*(.data))
KEEP (*(.data.*))
KEEP (*(.gnu.linkonce.d.*))
KEEP (*(.data1))
KEEP (*(.sdata))
KEEP (*(.sdata.*))
KEEP (*(.gnu.linkonce.s.*))
KEEP (*(.sdata2))
KEEP (*(.sdata2.*))
KEEP (*(.gnu.linkonce.s2.*))
KEEP (*(.jcr))
*(.dram1 .dram1.*)
esp32s2_start.*(.rodata .rodata.*)
_edata = ABSOLUTE(.);
. = ALIGN(4);
/* Heap starts at the end of .data */
_sheap = ABSOLUTE(.);
} >dram0_0_seg AT>ROM
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
. = ALIGN (4);
_iram_end = ABSOLUTE(.);
} >iram0_0_seg
_image_irom_vma = ADDR(.flash.text);
_image_irom_lma = LOADADDR(.flash.text);
_image_irom_size = LOADADDR(.flash.text) + SIZEOF(.flash.text) - _image_irom_lma;
/* The alignment of the ".flash.text" output section is forced to
* 0x0000FFFF (64KB) to ensure that it will be allocated at the beginning
* of the next available Flash block.
* This is required to meet the following constraint from the external
* flash MMU:
* VMA % 64KB == LMA % 64KB
* i.e. the lower 16 bits of both the virtual address (address seen by the
* CPU) and the load address (physical address of the external flash) must
* be equal.
*/
.flash_text_dummy (NOLOAD) : ALIGN(0x0000FFFF)
{
/* This section is required to skip .flash.rodata area because irom0_0_seg
* and drom0_0_seg reflect the same address space on different buses.
*/
. = SIZEOF(.flash.rodata);
} >irom0_0_seg
.flash.text : ALIGN(0x0000FFFF)
{
_stext = .;
*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
*(.fini.literal)
*(.fini)
*(.gnu.version)
. = ALIGN(4);
_etext = .;
} >irom0_0_seg AT>ROM
.rtc.text :
{
. = ALIGN(4);
*(.rtc.literal .rtc.text)
} >rtc_iram_seg AT>ROM
.rtc.dummy (NOLOAD) :
{
/* This section is required to skip .rtc.text area because the text and
* data segments reflect the same address space on different buses.
*/
. = SIZEOF(.rtc.text);
} >rtc_data_seg
/* RTC BSS section. */
.rtc.bss (NOLOAD) :
{
*(.rtc.bss)
} >rtc_data_seg
.rtc.data :
{
*(.rtc.data)
*(.rtc.rodata)
} >rtc_data_seg AT>ROM
}

View File

@ -43,12 +43,12 @@ PROVIDE ( Cache_Get_Memory_BaseAddr = 0x40019244 );
PROVIDE ( Cache_Get_Memory_value = 0x400192d8 );
PROVIDE ( Cache_Get_Mode = 0x40017ff0 );
PROVIDE ( Cache_Get_Virtual_Addr = 0x40019210 );
PROVIDE ( Cache_Ibus_MMU_Set = 0x40018df4 );
PROVIDE ( cache_ibus_mmu_set = 0x40018df4 );
PROVIDE ( Cache_ICache_Preload_Done = 0x4001859c );
PROVIDE ( Cache_Invalidate_Addr = 0x400182e4 );
PROVIDE ( Cache_Invalidate_DCache_All = 0x4001842c );
PROVIDE ( Cache_Invalidate_DCache_Items = 0x40018208 );
PROVIDE ( Cache_Invalidate_ICache_All = 0x40018420 );
PROVIDE ( cache_invalidate_icache_all = 0x40018420 );
PROVIDE ( Cache_Invalidate_ICache_Items = 0x400181b8 );
PROVIDE ( Cache_Lock_Addr = 0x40018b10 );
PROVIDE ( Cache_Lock_DCache_Items = 0x40018a80 );
@ -58,7 +58,7 @@ PROVIDE ( cache_memory_baseaddrs = 0x3ffaf020 );
PROVIDE ( Cache_MMU_Init = 0x40018dd8 );
PROVIDE ( Cache_Resume_DCache = 0x40018d3c );
PROVIDE ( Cache_Resume_DCache_Autoload = 0x4001850c );
PROVIDE ( Cache_Resume_ICache = 0x40018cdc );
PROVIDE ( cache_resume_icache = 0x40018cdc );
PROVIDE ( Cache_Resume_ICache_Autoload = 0x400184c4 );
PROVIDE ( Cache_Set_DCache_Mode = 0x40018074 );
PROVIDE ( Cache_Set_Default_Mode = 0x4001810c );
@ -67,7 +67,7 @@ PROVIDE ( Cache_Start_DCache_Preload = 0x400185c4 );
PROVIDE ( Cache_Start_ICache_Preload = 0x40018530 );
PROVIDE ( Cache_Suspend_DCache = 0x40018d04 );
PROVIDE ( Cache_Suspend_DCache_Autoload = 0x400184e0 );
PROVIDE ( Cache_Suspend_ICache = 0x40018ca4 );
PROVIDE ( cache_suspend_icache = 0x40018ca4 );
PROVIDE ( Cache_Suspend_ICache_Autoload = 0x40018498 );
PROVIDE ( Cache_Travel_Tag_Memory = 0x4001908c );
PROVIDE ( Cache_Unlock_Addr = 0x40018b9c );

View File

@ -60,7 +60,10 @@ endif
ESPTOOL_FLASH_OPTS := -fs $(FLASH_SIZE) -fm $(FLASH_MODE) -ff $(FLASH_FREQ)
# Configure the variables according to build environment
ifdef ESPTOOL_BINDIR
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_LEGACY),y)
BL_OFFSET := 0x1000
PT_OFFSET := 0x8000
BOOTLOADER := $(ESPTOOL_BINDIR)/bootloader-esp32s2.bin
@ -68,28 +71,32 @@ ifdef ESPTOOL_BINDIR
FLASH_BL := $(BL_OFFSET) $(BOOTLOADER)
FLASH_PT := $(PT_OFFSET) $(PARTITION_TABLE)
ESPTOOL_BINS := $(FLASH_BL) $(FLASH_PT)
else ifeq ($(CONFIG_ESP32S2_APP_FORMAT_MCUBOOT),y)
BL_OFFSET := 0x1000
BOOTLOADER := $(ESPTOOL_BINDIR)/mcuboot-esp32s2.bin
FLASH_BL := $(BL_OFFSET) $(BOOTLOADER)
ESPTOOL_BINS := $(FLASH_BL)
endif
endif
ESPTOOL_BINS += 0x10000 nuttx.bin
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_LEGACY),y)
APP_OFFSET := 0x10000
APP_IMAGE := nuttx.bin
FLASH_APP := $(APP_OFFSET) $(APP_IMAGE)
else ifeq ($(CONFIG_ESP32S2_APP_FORMAT_MCUBOOT),y)
ifeq ($(CONFIG_ESP32S2_ESPTOOL_TARGET_PRIMARY),y)
VERIFIED := --confirm
APP_OFFSET := $(CONFIG_ESP32S2_OTA_PRIMARY_SLOT_OFFSET)
else ifeq ($(CONFIG_ESP32S2_ESPTOOL_TARGET_SECONDARY),y)
VERIFIED :=
APP_OFFSET := $(CONFIG_ESP32S2_OTA_SECONDARY_SLOT_OFFSET)
endif
# ELF2IMAGE -- Convert an ELF file into a binary file in Espressif application image format
APP_IMAGE := nuttx.signed.bin
FLASH_APP := $(APP_OFFSET) $(APP_IMAGE)
endif
define ELF2IMAGE
$(Q) echo "MKIMAGE: ESP32-S2 binary"
$(Q) if ! esptool.py version 1>/dev/null 2>&1; then \
echo ""; \
echo "esptool.py not found. Please run: \"pip install esptool\""; \
echo ""; \
echo "Run make again to create the nuttx.bin image."; \
exit 1; \
fi
$(Q) if [ -z $(FLASH_SIZE) ]; then \
echo "Missing Flash memory size configuration for the ESP32-S2 chip."; \
exit 1; \
fi
esptool.py -c esp32s2 elf2image $(ESPTOOL_FLASH_OPTS) -o nuttx.bin nuttx
$(Q) echo "Generated: nuttx.bin (ESP32-S2 compatible)"
endef
ESPTOOL_BINS += $(FLASH_APP)
# MERGEBIN -- Merge raw binary files into a single file
@ -114,12 +121,61 @@ define MERGEBIN
endef
endif
# SIGNBIN -- Sign the binary image file
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_MCUBOOT),y)
define SIGNBIN
$(Q) echo "MKIMAGE: ESP32-S2 binary"
$(Q) if ! imgtool version 1>/dev/null 2>&1; then \
echo ""; \
echo "imgtool not found. Please run: \"pip install imgtool\""; \
echo ""; \
echo "Run make again to create the nuttx.signed.bin image."; \
exit 1; \
fi
imgtool sign --pad --pad-sig $(VERIFIED) --align 4 -v 0 \
-H $(CONFIG_ESP32S2_APP_MCUBOOT_HEADER_SIZE) --pad-header \
-S $(CONFIG_ESP32S2_OTA_SLOT_SIZE) \
nuttx.bin nuttx.signed.bin
$(Q) echo nuttx.signed.bin >> nuttx.manifest
$(Q) echo "Generated: nuttx.signed.bin (MCUboot compatible)"
endef
endif
# ELF2IMAGE -- Convert an ELF file into a binary file in Espressif application image format
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_LEGACY),y)
define ELF2IMAGE
$(Q) echo "MKIMAGE: ESP32-S2 binary"
$(Q) if ! esptool.py version 1>/dev/null 2>&1; then \
echo ""; \
echo "esptool.py not found. Please run: \"pip install esptool\""; \
echo ""; \
echo "Run make again to create the nuttx.bin image."; \
exit 1; \
fi
$(Q) if [ -z $(FLASH_SIZE) ]; then \
echo "Missing Flash memory size configuration for the ESP32-S2 chip."; \
exit 1; \
fi
esptool.py -c esp32s2 elf2image $(ESPTOOL_FLASH_OPTS) -o nuttx.bin nuttx
$(Q) echo "Generated: nuttx.bin (ESP32-S2 compatible)"
endef
endif
# POSTBUILD -- Perform post build operations
ifeq ($(CONFIG_ESP32S2_APP_FORMAT_MCUBOOT),y)
define POSTBUILD
$(call SIGNBIN)
$(call MERGEBIN)
endef
else ifeq ($(CONFIG_ESP32S2_APP_FORMAT_LEGACY),y)
define POSTBUILD
$(call ELF2IMAGE)
$(call MERGEBIN)
endef
endif
# ESPTOOL_BAUD -- Serial port baud rate used when flashing/reading via esptool.py