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stm32: Resync stm32f4 with upstream Klipper

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There was a Klipper bugfix for STM32F401 clock init.

There was a Klipper build bugfix when building with gcc hardfloat flags.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-05-16 21:21:46 -04:00 committed by Eric Callahan
parent 3d924f52ec
commit d2ea272de0
2 changed files with 6 additions and 2 deletions
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1
src/stm32/Makefile
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@ -16,7 +16,6 @@ CFLAGS-$(CONFIG_MACH_STM32F0) += -mcpu=cortex-m0 -Ilib/stm32f0/include
CFLAGS-$(CONFIG_MACH_STM32F1) += -mcpu=cortex-m3 -Ilib/stm32f1/include
CFLAGS-$(CONFIG_MACH_STM32F2) += -mcpu=cortex-m3 -Ilib/stm32f2/include
CFLAGS-$(CONFIG_MACH_STM32F4) += -mcpu=cortex-m4 -Ilib/stm32f4/include
CFLAGS-$(CONFIG_MACH_STM32F4) += -mfpu=fpv4-sp-d16 -mfloat-abi=hard
CFLAGS += $(CFLAGS-y) -D$(MCU_UPPER) -mthumb -Ilib/cmsis-core -Ilib/fast-hash
CFLAGS_canboot.elf += --specs=nano.specs --specs=nosys.specs

7
src/stm32/stm32f4.c
View File

@ -8,6 +8,7 @@
#include "board/armcm_boot.h" // VectorTable
#include "board/irq.h" // irq_disable
#include "board/usb_cdc.h" // usb_request_bootloader
#include "command.h" // DECL_CONSTANT_STR
#include "internal.h" // enable_pclock
#include "sched.h" // sched_main
@ -55,6 +56,10 @@ gpio_clock_enable(GPIO_TypeDef *regs)
RCC->AHB1ENR;
}
#if !CONFIG_STM32_CLOCK_REF_INTERNAL
DECL_CONSTANT_STR("RESERVE_PINS_crystal", "PH0,PH1");
#endif
// Clock configuration
static void
enable_clock_stm32f20x(void)
@ -158,7 +163,7 @@ clock_setup(void)
// Configure and enable PLL
if (CONFIG_MACH_STM32F207)
enable_clock_stm32f20x();
else if (CONFIG_MACH_STM32F4x5)
else if (CONFIG_MACH_STM32F401 || CONFIG_MACH_STM32F4x5)
enable_clock_stm32f40x();
else
enable_clock_stm32f446();