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Add f303 to tinyuf2 bootloader support (#19620)

This commit is contained in:
Joel Challis 2023-01-18 22:36:58 +00:00 committed by GitHub
parent dcd532830d
commit 82a94ea1bd
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3 changed files with 95 additions and 3 deletions
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4
builddefs/mcu_selection.mk
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@ -313,7 +313,11 @@ ifneq ($(findstring STM32F303, $(MCU)),)
# Linker script to use
# - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/
# or <keyboard_dir>/ld/
ifeq ($(strip $(BOOTLOADER)), tinyuf2)
MCU_LDSCRIPT ?= STM32F303xC_tinyuf2
else
MCU_LDSCRIPT ?= STM32F303xC
endif
# Startup code to use
# - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/

4
docs/flashing.md
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@ -324,7 +324,7 @@ Flashing sequence:
## tinyuf2
Keyboards may opt into supporting the tinyuf2 bootloader. This is currently only supported on the F401/F411 blackpill.
Keyboards may opt into supporting the tinyuf2 bootloader. This is currently only supported on F303/F401/F411.
The `rules.mk` setting for this bootloader is `tinyuf2`, and can be specified at the keymap or user level.
@ -365,7 +365,7 @@ CLI Flashing sequence:
## uf2boot
Keyboards may opt into supporting the uf2boot bootloader. This is currently only supported on the F103 bluepill.
Keyboards may opt into supporting the uf2boot bootloader. This is currently only supported on F103.
The `rules.mk` setting for this bootloader is `uf2boot`, and can be specified at the keymap or user level.

88
platforms/chibios/boards/common/ld/STM32F303xC_tinyuf2.ld Normal file
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@ -0,0 +1,88 @@
/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
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.
*/
/*
* STM32F303xC memory setup.
*/
MEMORY
{
flash0 (rx) : org = 0x08000000 + 16k, len = 256k - 16k
flash1 (rx) : org = 0x00000000, len = 0
flash2 (rx) : org = 0x00000000, len = 0
flash3 (rx) : org = 0x00000000, len = 0
flash4 (rx) : org = 0x00000000, len = 0
flash5 (rx) : org = 0x00000000, len = 0
flash6 (rx) : org = 0x00000000, len = 0
flash7 (rx) : org = 0x00000000, len = 0
ram0 (wx) : org = 0x20000000, len = 40k
ram1 (wx) : org = 0x00000000, len = 0
ram2 (wx) : org = 0x00000000, len = 0
ram3 (wx) : org = 0x00000000, len = 0
ram4 (wx) : org = 0x10000000, len = 8k
ram5 (wx) : org = 0x00000000, len = 0
ram6 (wx) : org = 0x00000000, len = 0
ram7 (wx) : org = 0x00000000, len = 0
}
/* For each data/text section two region are defined, a virtual region
and a load region (_LMA suffix).*/
/* Flash region to be used for exception vectors.*/
REGION_ALIAS("VECTORS_FLASH", flash0);
REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
/* Flash region to be used for constructors and destructors.*/
REGION_ALIAS("XTORS_FLASH", flash0);
REGION_ALIAS("XTORS_FLASH_LMA", flash0);
/* Flash region to be used for code text.*/
REGION_ALIAS("TEXT_FLASH", flash0);
REGION_ALIAS("TEXT_FLASH_LMA", flash0);
/* Flash region to be used for read only data.*/
REGION_ALIAS("RODATA_FLASH", flash0);
REGION_ALIAS("RODATA_FLASH_LMA", flash0);
/* Flash region to be used for various.*/
REGION_ALIAS("VARIOUS_FLASH", flash0);
REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
/* Flash region to be used for RAM(n) initialization data.*/
REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
/* RAM region to be used for Main stack. This stack accommodates the processing
of all exceptions and interrupts.*/
REGION_ALIAS("MAIN_STACK_RAM", ram0);
/* RAM region to be used for the process stack. This is the stack used by
the main() function.*/
REGION_ALIAS("PROCESS_STACK_RAM", ram0);
/* RAM region to be used for data segment.*/
REGION_ALIAS("DATA_RAM", ram0);
REGION_ALIAS("DATA_RAM_LMA", flash0);
/* RAM region to be used for BSS segment.*/
REGION_ALIAS("BSS_RAM", ram0);
/* RAM region to be used for the default heap.*/
REGION_ALIAS("HEAP_RAM", ram0);
/* Generic rules inclusion.*/
INCLUDE rules.ld
/* TinyUF2 bootloader reset support */
_board_dfu_dbl_tap = ORIGIN(ram0) + 40k - 4; /* this is based off the linker file for tinyuf2 */