From 93bf62580a68533dc8252b9a2a055c02f34ecb67 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Thu, 24 Mar 2022 09:38:08 -0700
Subject: Modularized

---
 src/boot.S | 118 -------------------------------------------------------------
 1 file changed, 118 deletions(-)
 delete mode 100644 src/boot.S

(limited to 'src/boot.S')

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
-- 
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