diff --git a/src/rp2040/Kconfig b/src/rp2040/Kconfig index 148222d7..69b1cd58 100644 --- a/src/rp2040/Kconfig +++ b/src/rp2040/Kconfig @@ -47,17 +47,32 @@ config STACK_SIZE int default 512 -config FLASH_START - hex - default 0x10000100 - ###################################################################### # Bootloader options ###################################################################### +config RP2040_HAVE_STAGE2 + bool +config RP2040_HAVE_BOOTLOADER + bool + default y if !RP2040_HAVE_STAGE2 + choice - prompt "Flash chip" if LOW_LEVEL_OPTIONS + prompt "Bootloader offset" + config RP2040_FLASH_START_0100 + bool "No bootloader" + select RP2040_HAVE_STAGE2 + config RP2040_FLASH_START_4000 + bool "16KiB bootloader" +endchoice +config FLASH_START + hex + default 0x10004000 if RP2040_FLASH_START_4000 + default 0x10000100 + +choice + prompt "Flash chip" if LOW_LEVEL_OPTIONS && RP2040_HAVE_STAGE2 config RP2040_FLASH_W25Q080 bool "W25Q080 with CLKDIV 2" config RP2040_FLASH_GENERIC_03 diff --git a/src/rp2040/Makefile b/src/rp2040/Makefile index 5bb572fb..47954c9a 100644 --- a/src/rp2040/Makefile +++ b/src/rp2040/Makefile @@ -8,10 +8,6 @@ dirs-y += src/rp2040 src/generic lib/rp2040/elf2uf2 lib/fast-hash lib/can2040 CFLAGS += -mcpu=cortex-m0plus -mthumb -Ilib/cmsis-core CFLAGS += -Ilib/rp2040 -Ilib/rp2040/cmsis_include -Ilib/fast-hash -Ilib/can2040 -CFLAGS_klipper.elf += --specs=nano.specs --specs=nosys.specs -CFLAGS_klipper.elf += -T $(OUT)src/rp2040/rp2040_link.ld -$(OUT)klipper.elf: $(OUT)stage2.o $(OUT)src/rp2040/rp2040_link.ld - # Add source files src-y += rp2040/main.c rp2040/gpio.c rp2040/adc.c generic/crc16_ccitt.c src-y += generic/armcm_boot.c generic/armcm_irq.c generic/armcm_reset.c @@ -38,11 +34,8 @@ $(OUT)stage2.o: lib/rp2040/boot_stage2/$(STAGE2_FILE) $(OUT)autoconf.h $(Q)$(OBJCOPY) -O binary $(OUT)stage2raw.o $(OUT)stage2raw.bin $(Q)lib/rp2040/boot_stage2/pad_checksum -s 0xffffffff $(OUT)stage2raw.bin $(OUT)stage2.S $(Q)$(CC) $(CFLAGS) -c $(OUT)stage2.S -o $(OUT)stage2.o -OBJS_klipper.elf += $(OUT)stage2.o - -# Binary output file rules -target-y += $(OUT)klipper.uf2 +# Binary output file rules when using stage2 $(OUT)lib/rp2040/elf2uf2/elf2uf2: lib/rp2040/elf2uf2/main.cpp @echo " Building $@" $(Q)g++ -g -O -Ilib/rp2040 $< -o $@ @@ -51,11 +44,28 @@ $(OUT)klipper.uf2: $(OUT)klipper.elf $(OUT)lib/rp2040/elf2uf2/elf2uf2 @echo " Creating uf2 file $@" $(Q)$(OUT)lib/rp2040/elf2uf2/elf2uf2 $< $@ +target-$(CONFIG_RP2040_HAVE_STAGE2) += $(OUT)klipper.uf2 +rplink-$(CONFIG_RP2040_HAVE_STAGE2) := $(OUT)src/rp2040/rp2040_link.ld +stage2-$(CONFIG_RP2040_HAVE_STAGE2) := $(OUT)stage2.o + +# rp2040 building when using a bootloader +$(OUT)klipper.bin: $(OUT)klipper.elf + @echo " Creating bin file $@" + $(Q)$(OBJCOPY) -O binary $< $@ + +target-$(CONFIG_RP2040_HAVE_BOOTLOADER) += $(OUT)klipper.bin +rplink-$(CONFIG_RP2040_HAVE_BOOTLOADER) := $(OUT)src/generic/armcm_link.ld + +# Set klipper.elf linker rules +CFLAGS_klipper.elf += --specs=nano.specs --specs=nosys.specs -T $(rplink-y) +OBJS_klipper.elf += $(stage2-y) +$(OUT)klipper.elf: $(stage2-y) $(rplink-y) + +# Flash rules lib/rp2040_flash/rp2040_flash: @echo " Building rp2040_flash" $(Q)make -C lib/rp2040_flash rp2040_flash -# Flash rules flash: $(OUT)klipper.uf2 lib/rp2040_flash/rp2040_flash @echo " Flashing $< to $(FLASH_DEVICE)" $(Q)$(PYTHON) ./scripts/flash_usb.py -t $(CONFIG_MCU) -d "$(FLASH_DEVICE)" $(if $(NOSUDO),--no-sudo) $(OUT)klipper.uf2 diff --git a/src/rp2040/main.c b/src/rp2040/main.c index 462e69c6..eac3a0b9 100644 --- a/src/rp2040/main.c +++ b/src/rp2040/main.c @@ -6,6 +6,7 @@ #include // uint32_t #include "board/misc.h" // bootloader_request +#include "generic/armcm_reset.h" // try_request_canboot #include "hardware/structs/clocks.h" // clock_hw_t #include "hardware/structs/pll.h" // pll_hw_t #include "hardware/structs/resets.h" // sio_hw @@ -45,6 +46,7 @@ DECL_INIT(watchdog_init); void bootloader_request(void) { + try_request_canboot(); // Use the bootrom-provided code to reset into BOOTSEL mode reset_to_usb_boot(0, 0); }