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canbus: use "try_request_canboot" method 

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
Eric Callahan 2022-05-31 06:55:13 -04:00 committed by KevinOConnor
parent 8b1e3c3fb2
commit 129091d811
2 changed files with 4 additions and 15 deletions
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16
src/generic/canbus.c
View File

@ -95,10 +95,6 @@ console_sendf(const struct command_encoder *ce, va_list args)
#define CANBUS_CMD_REQUEST_BOOTLOADER 0x02
#define CANBUS_RESP_NEED_NODEID 0x20
// CanBoot definitions
#define CANBOOT_SIGNATURE 0x21746f6f426e6143
#define CANBOOT_REQUEST 0x5984E3FA6CA1589B
// Helper to verify a UUID in a command matches this chip's UUID
static int
can_check_uuid(uint32_t id, uint32_t len, uint8_t *data)
@ -166,17 +162,7 @@ can_process_request_bootloader(uint32_t id, uint32_t len, uint8_t *data)
{
if (!can_check_uuid(id, len, data))
return;
uint32_t *bl_vectors = (uint32_t *)(CONFIG_FLASH_START & 0xFF000000);
uint64_t *boot_sig = (uint64_t *)(bl_vectors[1] - 9);
uint64_t *req_sig = (uint64_t *)bl_vectors[0];
if (boot_sig == (void *)ALIGN((size_t)boot_sig, 8) &&
*boot_sig == CANBOOT_SIGNATURE &&
req_sig == (void *)ALIGN((size_t)req_sig, 8))
{
irq_disable();
*req_sig = CANBOOT_REQUEST;
NVIC_SystemReset();
}
try_request_canboot();
}
// Handle an "admin" command

3
src/stm32/internal.h
View File

@ -42,4 +42,7 @@ struct cline lookup_clock_line(uint32_t periph_base);
uint32_t get_pclock_frequency(uint32_t periph_base);
void gpio_clock_enable(GPIO_TypeDef *regs);
// armcm_timer.c
void try_request_canboot(void);
#endif // internal.h