make bootloader support esp32s2beta

This commit is contained in:
suda-morris 2019-04-03 13:05:35 +08:00
parent 2f4c5c51f4
commit 12f00d9a5e
7 changed files with 215 additions and 7 deletions

View file

@ -411,6 +411,26 @@ menu "Security features"
Read https://docs.espressif.com/projects/esp-idf/en/latest/security/flash-encryption.html before enabling.
choice FLASH_ENCRYPTION_GENERATE_KEYSIZE
bool "Size of generated AES-XTS key"
default FLASH_ENCRYPTION_AES128
depends on IDF_TARGET_ESP32S2BETA && FLASH_ENCRYPTION_ENABLED
help
Size of generated AES-XTS key.
AES-128 uses a 256-bit key (32 bytes) which occupies one Efuse key block.
AES-256 uses a 512-bit key (64 bytes) which occupies two Efuse key blocks.
This setting is ignored if either type of key is already burned to Efuse before the first boot.
In this case, the pre-burned key is used and no new key is generated.
config FLASH_ENCRYPTION_AES128
bool "AES-128 (256-bit key)"
config FLASH_ENCRYPTION_AES256
bool "AES-256 (512-bit key)"
endchoice
config SECURE_FLASH_ENC_INSECURE
bool "Allow potentially insecure options"
depends on SECURE_FLASH_ENC_ENABLED

View file

@ -4,7 +4,15 @@ set(COMPONENT_REQUIRES bootloader bootloader_support)
register_component()
idf_build_get_property(target IDF_TARGET)
set(scripts "${target}.bootloader.ld"
"${target}.bootloader.rom.ld")
target_linker_script(${COMPONENT_LIB} "${scripts}")
target_linker_script(${COMPONENT_LIB}
"ld/${target}/bootloader.ld"
"ld/${target}/bootloader.rom.ld"
)
set(scripts
"${IDF_PATH}/components/esp_rom/${target}/ld/${target}.rom.ld"
"${IDF_PATH}/components/esp_rom/${target}/ld/${target}.rom.newlib-funcs.ld"
"${IDF_PATH}/components/${target}/ld/${target}.peripherals.ld")
target_linker_script(${COMPONENT_LIB} ${scripts})

View file

@ -6,14 +6,17 @@
#
LINKER_SCRIPTS := \
$(IDF_TARGET).bootloader.ld \
$(IDF_TARGET).bootloader.rom.ld \
$(COMPONENT_PATH)/ld/$(IDF_TARGET)/bootloader.ld \
$(COMPONENT_PATH)/ld/$(IDF_TARGET)/bootloader.rom.ld \
$(IDF_PATH)/components/esp_rom/$(IDF_TARGET)/ld/$(IDF_TARGET).rom.ld \
$(IDF_PATH)/components/esp_rom/$(IDF_TARGET)/ld/$(IDF_TARGET).rom.newlib-funcs.ld \
$(IDF_PATH)/components/$(IDF_TARGET)/ld/$(IDF_TARGET).peripherals.ld
ifndef CONFIG_SPI_FLASH_ROM_DRIVER_PATCH
LINKER_SCRIPTS += $(IDF_PATH)/components/esp_rom/$(IDF_TARGET)/ld/$(IDF_TARGET).rom.spiflash.ld
# SPI driver patch for ROM is only needed in ESP32
ifdef CONFIG_IDF_TARGET_ESP32
ifndef CONFIG_SPI_FLASH_ROM_DRIVER_PATCH
LINKER_SCRIPTS += $(IDF_PATH)/components/esp_rom/$(IDF_TARGET)/ld/$(IDF_TARGET).rom.spiflash.ld
endif
endif
COMPONENT_ADD_LDFLAGS += -L $(COMPONENT_PATH) $(addprefix -T ,$(LINKER_SCRIPTS))

View file

@ -0,0 +1,163 @@
/*
Linker file used to link the bootloader.
*/
/* Simplified memory map for the bootloader
The main purpose is to make sure the bootloader can load into main memory
without overwriting itself.
*/
MEMORY
{
/* I/O */
dport0_seg (RW) : org = 0x3FF00000, len = 0x10
/* IRAM POOL1, used for APP CPU cache. Bootloader runs from here during the final stage of loading the app because APP CPU is still held in reset, the main app enables APP CPU cache */
iram_loader_seg (RWX) : org = 0x40022000, len = 0x2000 /* 8KB, APP CPU cache */
iram_seg (RWX) : org = 0x40024000, len = 0x4000 /* 16KB, IRAM */
/* 12k at the end of DRAM, after ROM bootloader stack */
dram_seg (RW) : org = 0x3FFF5000, len = 0x3000
}
/* Default entry point: */
ENTRY(call_start_cpu0);
SECTIONS
{
.iram_loader.text :
{
. = ALIGN (16);
_loader_text_start = ABSOLUTE(.);
*(.stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.iram1 .iram1.*) /* catch stray IRAM_ATTR */
*liblog.a:(.literal .text .literal.* .text.*)
*libgcc.a:(.literal .text .literal.* .text.*)
*libbootloader_support.a:bootloader_common.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:bootloader_flash.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:bootloader_random.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:bootloader_utility.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:bootloader_sha.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:esp_image_format.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:flash_encrypt.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:flash_partitions.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:secure_boot.*(.literal .text .literal.* .text.*)
*libbootloader_support.a:secure_boot_signatures.*(.literal .text .literal.* .text.*)
*libmicro-ecc.a:*.*(.literal .text .literal.* .text.*)
*libspi_flash.a:*.*(.literal .text .literal.* .text.*)
*libsoc.a:rtc_wdt.*(.literal .text .literal.* .text.*)
*libefuse.a:*.*(.literal .text .literal.* .text.*)
*(.fini.literal)
*(.fini)
*(.gnu.version)
_loader_text_end = ABSOLUTE(.);
} > iram_loader_seg
.iram.text :
{
. = ALIGN (16);
*(.entry.text)
*(.init.literal)
*(.init)
} > iram_seg
/* Shared RAM */
.dram0.bss (NOLOAD) :
{
. = ALIGN (8);
_bss_start = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (8);
_bss_end = ABSOLUTE(.);
} >dram_seg
.dram0.data :
{
_data_start = ABSOLUTE(.);
*(.data)
*(.data.*)
*(.gnu.linkonce.d.*)
*(.data1)
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
*(.sdata2)
*(.sdata2.*)
*(.gnu.linkonce.s2.*)
*(.jcr)
_data_end = ABSOLUTE(.);
} >dram_seg
.dram0.rodata :
{
_rodata_start = ABSOLUTE(.);
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r.*)
*(.rodata1)
__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
*(.xt_except_table)
*(.gcc_except_table)
*(.gnu.linkonce.e.*)
*(.gnu.version_r)
*(.eh_frame)
. = (. + 3) & ~ 3;
/* C++ constructor and destructor tables, properly ordered: */
__init_array_start = ABSOLUTE(.);
KEEP (*crtbegin.*(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.*) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
__init_array_end = ABSOLUTE(.);
KEEP (*crtbegin.*(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.*) .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)
_rodata_end = ABSOLUTE(.);
/* Literals are also RO data. */
_lit4_start = ABSOLUTE(.);
*(*.lit4)
*(.lit4.*)
*(.gnu.linkonce.lit4.*)
_lit4_end = ABSOLUTE(.);
. = ALIGN(4);
_heap_start = ABSOLUTE(.);
} >dram_seg
.iram.text :
{
_stext = .;
_text_start = ABSOLUTE(.);
*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.iram .iram.*) /* catch stray IRAM_ATTR */
*(.fini.literal)
*(.fini)
*(.gnu.version)
_text_end = ABSOLUTE(.);
_etext = .;
} > iram_seg
}

View file

@ -0,0 +1,14 @@
/*
* ESP32S2 ROM address table
* Generated for ROM with MD5sum: f054d40c5f6b9207d3827460a6f5748c
*/
PROVIDE ( ets_update_cpu_frequency = 0x4000d954 );
/* ToDo: Following address may need modification */
PROVIDE ( MD5Final = 0x4005db1c );
PROVIDE ( MD5Init = 0x4005da7c );
PROVIDE ( MD5Update = 0x4005da9c );
/* bootloader will use following functions from xtensa hal library */
xthal_get_ccount = 0x4000c050;
xthal_get_ccompare = 0x4000c078;
xthal_set_ccompare = 0x4000c058;