~ruther/qmk_firmware

c71c0fba9000cb586588da4c6bbf877d21d061b6 — Ryan 3 years ago 5249a60
Fix bootloader_jump for certain CTRL boards (#16026)

1 files changed, 5 insertions(+), 12 deletions(-)

M platforms/arm_atsam/bootloaders/md_boot.c
M platforms/arm_atsam/bootloaders/md_boot.c => platforms/arm_atsam/bootloaders/md_boot.c +5 -12
@@ 18,15 18,14 @@

#include "samd51j18a.h"

#ifdef KEYBOARD_massdrop_ctrl
// WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support
extern uint32_t _eram;

#    define BOOTLOADER_MAGIC 0x3B9ACA00
#    define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)
#define BOOTLOADER_MAGIC 0x3B9ACA00
#define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)

// CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method.
void bootloader_jump(void) {
#ifdef KEYBOARD_massdrop_ctrl
    uint8_t  ver_ram_method[] = "v2.18Jun 22 2018 17:28:08";  // The version to match (NULL terminated by compiler)
    uint8_t *ver_check        = ver_ram_method;               // Pointer to version match string for traversal
    uint8_t *ver_rom          = (uint8_t *)0x21A0;            // Pointer to address in ROM where this specific bootloader version would exist


@@ 39,16 38,12 @@ void bootloader_jump(void) {
    if (!*ver_check) {                   // If check version pointer is NULL, all characters have matched
        *MAGIC_ADDR = BOOTLOADER_MAGIC;  // Set magic number into RAM
        NVIC_SystemReset();              // Perform system reset

        while (1)
            ;  // Won't get here
    }
}

#else
#endif

// Set watchdog timer to reset. Directs the bootloader to stay in programming mode.
void bootloader_jump(void) {
    // Set watchdog timer to reset. Directs the bootloader to stay in programming mode.
    WDT->CTRLA.bit.ENABLE = 0;

    while (WDT->SYNCBUSY.bit.ENABLE)


@@ 65,8 60,6 @@ void bootloader_jump(void) {
        ;
    while (!WDT->CTRLA.bit.ENABLE)
        ;

    while (1)
        ;  // Wait on timeout
}
#endif