diff options
Diffstat (limited to 'tmk_core/tool/chibios')
| -rw-r--r-- | tmk_core/tool/chibios/.gitignore | 2 | ||||
| -rw-r--r-- | tmk_core/tool/chibios/ch-bootloader-jump.patch | 116 |
2 files changed, 118 insertions, 0 deletions
diff --git a/tmk_core/tool/chibios/.gitignore b/tmk_core/tool/chibios/.gitignore new file mode 100644 index 0000000000..88bbafe34f --- /dev/null +++ b/tmk_core/tool/chibios/.gitignore @@ -0,0 +1,2 @@ +chibios +chibios-contrib diff --git a/tmk_core/tool/chibios/ch-bootloader-jump.patch b/tmk_core/tool/chibios/ch-bootloader-jump.patch new file mode 100644 index 0000000000..c6eb2405c9 --- /dev/null +++ b/tmk_core/tool/chibios/ch-bootloader-jump.patch @@ -0,0 +1,116 @@ +diff --git a/os/common/ports/ARMCMx/compilers/GCC/crt0_v6m.s b/os/common/ports/ARMCMx/compilers/GCC/crt0_v6m.s +index 51a79bb..42d07bd 100644 +--- a/os/common/ports/ARMCMx/compilers/GCC/crt0_v6m.s ++++ b/os/common/ports/ARMCMx/compilers/GCC/crt0_v6m.s +@@ -105,6 +105,13 @@ + #define CRT0_CALL_DESTRUCTORS TRUE + #endif + ++/** ++ * @brief Magic number for jumping to bootloader. ++ */ ++#if !defined(MAGIC_BOOTLOADER_NUMBER) || defined(__DOXYGEN__) ++#define MAGIC_BOOTLOADER_NUMBER 0xDEADBEEF ++#endif ++ + /*===========================================================================*/ + /* Code section. */ + /*===========================================================================*/ +@@ -124,6 +131,17 @@ + .thumb_func + .global Reset_Handler + Reset_Handler: ++ ++#ifdef STM32_BOOTLOADER_ADDRESS ++ /* jump to bootloader code */ ++ ldr r0, =__ram0_end__-4 ++ ldr r1, =MAGIC_BOOTLOADER_NUMBER ++ ldr r2, [r0, #0] ++ str r0, [r0, #0] /* erase stored magic */ ++ cmp r2, r1 ++ beq Bootloader_Jump ++#endif /* STM32_BOOTLOADER_ADDRESS */ ++ + /* Interrupts are globally masked initially.*/ + cpsid i + +@@ -242,6 +260,21 @@ endfiniloop: + ldr r1, =__default_exit + bx r1 + ++#ifdef STM32_BOOTLOADER_ADDRESS ++/* ++ * Jump-to-bootloader function. ++ */ ++ ++ .align 2 ++ .thumb_func ++Bootloader_Jump: ++ ldr r0, =STM32_BOOTLOADER_ADDRESS ++ ldr r1, [r0, #0] ++ mov sp, r1 ++ ldr r0, [r0, #4] ++ bx r0 ++#endif /* STM32_BOOTLOADER_ADDRESS */ ++ + #endif + + /** @} */ +diff --git a/os/common/ports/ARMCMx/compilers/GCC/crt0_v7m.s b/os/common/ports/ARMCMx/compilers/GCC/crt0_v7m.s +index 4812a29..dca9f88 100644 +--- a/os/common/ports/ARMCMx/compilers/GCC/crt0_v7m.s ++++ b/os/common/ports/ARMCMx/compilers/GCC/crt0_v7m.s +@@ -140,6 +140,13 @@ + #define CRT0_CPACR_INIT 0x00F00000 + #endif + ++/** ++ * @brief Magic number for jumping to bootloader. ++ */ ++#if !defined(MAGIC_BOOTLOADER_NUMBER) || defined(__DOXYGEN__) ++#define MAGIC_BOOTLOADER_NUMBER 0xDEADBEEF ++#endif ++ + /*===========================================================================*/ + /* Code section. */ + /*===========================================================================*/ +@@ -164,6 +171,17 @@ + .thumb_func + .global Reset_Handler + Reset_Handler: ++ ++#ifdef STM32_BOOTLOADER_ADDRESS ++ /* jump to bootloader code */ ++ ldr r0, =__ram0_end__-4 ++ ldr r1, =MAGIC_BOOTLOADER_NUMBER ++ ldr r2, [r0, #0] ++ str r0, [r0, #0] /* erase stored magic */ ++ cmp r2, r1 ++ beq Bootloader_Jump ++#endif /* STM32_BOOTLOADER_ADDRESS */ ++ + /* Interrupts are globally masked initially.*/ + cpsid i + +@@ -305,6 +323,21 @@ endfiniloop: + /* Branching to the defined exit handler.*/ + b __default_exit + ++#ifdef STM32_BOOTLOADER_ADDRESS ++/* ++ * Jump-to-bootloader function. ++ */ ++ ++ .align 2 ++ .thumb_func ++Bootloader_Jump: ++ ldr r0, =STM32_BOOTLOADER_ADDRESS ++ ldr r1, [r0, #0] ++ mov sp, r1 ++ ldr r0, [r0, #4] ++ bx r0 ++#endif /* STM32_BOOTLOADER_ADDRESS */ ++ + #endif /* !defined(__DOXYGEN__) */ + + /** @} */ |