altos: Remove 8051 address space specifiers

[fw/altos] / src / stmf0 / ao_interrupt.c

diff --git a/src/stmf0/ao_interrupt.c b/src/stmf0/ao_interrupt.c
index fcd330f1b5aafc6620075ecfad98ad40a3be6aa6..81878d895ffaebbf9f19422cdc60abf6b7d03a8c 100644 (file)
--- a/src/stmf0/ao_interrupt.c
+++ b/src/stmf0/ao_interrupt.c
@@ -35,7 +35,7 @@
 extern void main(void);
 extern char __stack__;
 extern char __text_start__, __text_end__;
-extern char __data_start__, __data_end__;
+extern char _start__, _end__;
 extern char __bss_start__, __bss_end__;
 #if RELOCATE_INTERRUPT
 extern char __interrupt_rom__, __interrupt_start__, __interrupt_end__;
@@ -69,22 +69,26 @@ stm_flash_size(void) {
 
 void start(void)
 {
-#ifdef AO_BOOT_CHAIN
+#if AO_BOOT_CHAIN
        if (ao_boot_check_chain()) {
-#ifdef AO_BOOT_PIN
+#if AO_BOOT_PIN
                ao_boot_check_pin();
 #endif
        }
 #endif
-#if RELOCATE_INTERRUPT
        /* Turn on syscfg */
        stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_SYSCFGCOMPEN);
 
+#if RELOCATE_INTERRUPT
        memcpy(&__interrupt_start__, &__interrupt_rom__, &__interrupt_end__ - &__interrupt_start__);
        stm_syscfg.cfgr1 = (stm_syscfg.cfgr1 & ~(STM_SYSCFG_CFGR1_MEM_MODE_MASK << STM_SYSCFG_CFGR1_MEM_MODE)) |
                (STM_SYSCFG_CFGR1_MEM_MODE_SRAM << STM_SYSCFG_CFGR1_MEM_MODE);
+#else
+       /* Switch to Main Flash mode (DFU loader leaves us in System mode) */
+       stm_syscfg.cfgr1 = (stm_syscfg.cfgr1 & ~(STM_SYSCFG_CFGR1_MEM_MODE_MASK << STM_SYSCFG_CFGR1_MEM_MODE)) |
+               (STM_SYSCFG_CFGR1_MEM_MODE_MAIN_FLASH << STM_SYSCFG_CFGR1_MEM_MODE);
 #endif
-       memcpy(&__data_start__, &__text_end__, &__data_end__ - &__data_start__);
+       memcpy(&_start__, &__text_end__, &_end__ - &_start__);
        memset(&__bss_start__, '\0', &__bss_end__ - &__bss_start__);
        main();
 }