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-rw-r--r--src/boot.S118
1 files changed, 0 insertions, 118 deletions
diff --git a/src/boot.S b/src/boot.S
deleted file mode 100644
index 46ef3d0..0000000
--- a/src/boot.S
+++ /dev/null
@@ -1,118 +0,0 @@
-// To keep this in the first portion of the binary.
-.section ".text.boot"
-
-// Make _start global.
-.globl _start
-
-.include "macros.inc"
-
-_start:
-reset:
- cpsid aif
-
- // Exit Hypervisor Mode
- mrs r0, cpsr
- and r1, r0, #0x1F
- cmp r1, #0x1A
- bne 1f
- bic r0, r0, #0x1f
- orr r0, r0, #0x13
- msr spsr_cxsf, r0
- add r0, pc, #4
- msr ELR_hyp, r0
- eret
-
-1:
- // disable core0,1,2.
- mrc p15, #0, r1, c0, c0, #5
- and r1, r1, #3
- cmp r1, #1
- beq runcore1
- cmp r1, #2
- beq runcore2
- cmp r1, #3
- bge runcore3
-
- init_core 0
-
- // Clear out bss.
- ldr r4, =__bss_start
- ldr r9, =__bss_end
- mov r5, #0
- mov r6, #0
- mov r7, #0
- mov r8, #0
- b 2f
-
-1: // store multiple at r4.
- stmia r4!, {r5-r8}
-
-2: // If we are still below bss_end, loop.
- cmp r4, r9
- blo 1b
-
- // Clear mailboxes
- mov r4, #0
- ldr r5, =mbox_core0
- str r4, [r5]
- ldr r5, =mbox_core1
- str r4, [r5]
- ldr r5, =mbox_core2
- str r4, [r5]
- ldr r5, =mbox_core3
- str r4, [r5]
-
- // Call kernel_main
- ldr r3, =kernel_main
- blx r3
-
-runcore1:
- init_core 1
- b io_halt
-runcore2:
- init_core 2
- b io_halt
-runcore3:
- init_core 3
- b io_halt
-
-.globl io_halt
-io_halt:
- wfi
- b io_halt
-
-.align 5
-vector:
- ldr pc, reset_handler
- ldr pc, undefined_handler
- ldr pc, svc_handler
- ldr pc, prefetch_handler
- ldr pc, data_handler
- ldr pc, unused_handler
- ldr pc, irq_handler
- ldr pc, fiq_handler
-
-reset_handler: .word reset
-undefined_handler: .word undefined
-svc_handler: .word svc
-prefetch_handler: .word prefetch
-data_handler: .word data
-unused_handler: .word io_halt
-irq_handler: .word irq
-fiq_handler: .word fiq
-
-.section .data
-.globl mbox_core0
-mbox_core0: .word 0
-.globl mbox_core1
-mbox_core1: .word 0
-.globl mbox_core2
-mbox_core2: .word 0
-.globl mbox_core3
-mbox_core3: .word 0
-
-.section .bss.estacks
-core_stacks 0
-core_stacks 1
-core_stacks 2
-core_stacks 3