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boot: enable FIQ

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asm: add FIQ enable instruction
This commit is contained in:
morgan 2024-02-02 16:15:46 +08:00
parent 4168eb63a7
commit 298f64a2f9
2 changed files with 8 additions and 0 deletions
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6
libcortex_a9/src/asm.rs
View File

@ -34,6 +34,12 @@ pub fn isb() {
unsafe { llvm_asm!("isb" :::: "volatile") }
}
/// Enable FIQ
#[inline]
pub unsafe fn enable_fiq() {
llvm_asm!("cpsie f":::: "volatile");
}
/// Enable IRQ
#[inline]
pub unsafe fn enable_irq() {

2
libsupport_zynq/src/boot.rs
View File

@ -54,6 +54,7 @@ unsafe extern "C" fn boot_core0() -> ! {
asm::dmb();
asm::dsb();
asm::enable_fiq();
asm::enable_irq();
main_core0();
panic!("return from main");
@ -75,6 +76,7 @@ unsafe extern "C" fn boot_core1() -> ! {
asm::dmb();
asm::dsb();
asm::enable_fiq();
asm::enable_irq();
main_core1();
panic!("return from main_core1");