arm: Move cpu/$CPU to arch/arm/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 0 insertions, 416 deletions

diff --git a/cpu/arm_cortexa8/start.S b/cpu/arm_cortexa8/start.S
deleted file mode 100644
index 29dae2f282..0000000000
--- a/cpu/arm_cortexa8/start.S
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- * armboot - Startup Code for OMAP3530/ARM Cortex CPU-core
- *
- * Copyright (c) 2004	Texas Instruments <r-woodruff2@ti.com>
- *
- * Copyright (c) 2001	Marius Gröger <mag@sysgo.de>
- * Copyright (c) 2002	Alex Züpke <azu@sysgo.de>
- * Copyright (c) 2002	Gary Jennejohn <garyj@denx.de>
- * Copyright (c) 2003	Richard Woodruff <r-woodruff2@ti.com>
- * Copyright (c) 2003	Kshitij <kshitij@ti.com>
- * Copyright (c) 2006-2008 Syed Mohammed Khasim <x0khasim@ti.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <config.h>
-#include <version.h>
-
-.globl _start
-_start: b	reset
-	ldr	pc, _undefined_instruction
-	ldr	pc, _software_interrupt
-	ldr	pc, _prefetch_abort
-	ldr	pc, _data_abort
-	ldr	pc, _not_used
-	ldr	pc, _irq
-	ldr	pc, _fiq
-
-_undefined_instruction: .word undefined_instruction
-_software_interrupt:	.word software_interrupt
-_prefetch_abort:	.word prefetch_abort
-_data_abort:		.word data_abort
-_not_used:		.word not_used
-_irq:			.word irq
-_fiq:			.word fiq
-_pad:			.word 0x12345678 /* now 16*4=64 */
-.global _end_vect
-_end_vect:
-
-	.balignl 16,0xdeadbeef
-/*************************************************************************
- *
- * Startup Code (reset vector)
- *
- * do important init only if we don't start from memory!
- * setup Memory and board specific bits prior to relocation.
- * relocate armboot to ram
- * setup stack
- *
- *************************************************************************/
-
-_TEXT_BASE:
-	.word	TEXT_BASE
-
-.globl _armboot_start
-_armboot_start:
-	.word _start
-
-/*
- * These are defined in the board-specific linker script.
- */
-.globl _bss_start
-_bss_start:
-	.word __bss_start
-
-.globl _bss_end
-_bss_end:
-	.word _end
-
-#ifdef CONFIG_USE_IRQ
-/* IRQ stack memory (calculated at run-time) */
-.globl IRQ_STACK_START
-IRQ_STACK_START:
-	.word	0x0badc0de
-
-/* IRQ stack memory (calculated at run-time) */
-.globl FIQ_STACK_START
-FIQ_STACK_START:
-	.word 0x0badc0de
-#endif
-
-/*
- * the actual reset code
- */
-
-reset:
-	/*
-	 * set the cpu to SVC32 mode
-	 */
-	mrs	r0, cpsr
-	bic	r0, r0, #0x1f
-	orr	r0, r0, #0xd3
-	msr	cpsr,r0
-
-#if (CONFIG_OMAP34XX)
-	/* Copy vectors to mask ROM indirect addr */
-	adr	r0, _start		@ r0 <- current position of code
-	add	r0, r0, #4		@ skip reset vector
-	mov	r2, #64			@ r2 <- size to copy
-	add	r2, r0, r2		@ r2 <- source end address
-	mov	r1, #SRAM_OFFSET0	@ build vect addr
-	mov	r3, #SRAM_OFFSET1
-	add	r1, r1, r3
-	mov	r3, #SRAM_OFFSET2
-	add	r1, r1, r3
-next:
-	ldmia	r0!, {r3 - r10}		@ copy from source address [r0]
-	stmia	r1!, {r3 - r10}		@ copy to   target address [r1]
-	cmp	r0, r2			@ until source end address [r2]
-	bne	next			@ loop until equal */
-#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT)
-	/* No need to copy/exec the clock code - DPLL adjust already done
-	 * in NAND/oneNAND Boot.
-	 */
-	bl	cpy_clk_code		@ put dpll adjust code behind vectors
-#endif /* NAND Boot */
-#endif
-	/* the mask ROM code should have PLL and others stable */
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-	bl	cpu_init_crit
-#endif
-
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
-relocate:				@ relocate U-Boot to RAM
-	adr	r0, _start		@ r0 <- current position of code
-	ldr	r1, _TEXT_BASE		@ test if we run from flash or RAM
-	cmp	r0, r1			@ don't reloc during debug
-	beq	stack_setup
-
-	ldr	r2, _armboot_start
-	ldr	r3, _bss_start
-	sub	r2, r3, r2		@ r2 <- size of armboot
-	add	r2, r0, r2		@ r2 <- source end address
-
-copy_loop:				@ copy 32 bytes at a time
-	ldmia	r0!, {r3 - r10}		@ copy from source address [r0]
-	stmia	r1!, {r3 - r10}		@ copy to   target address [r1]
-	cmp	r0, r2			@ until source end addreee [r2]
-	ble	copy_loop
-#endif	/* CONFIG_SKIP_RELOCATE_UBOOT */
-
-	/* Set up the stack */
-stack_setup:
-	ldr	r0, _TEXT_BASE		@ upper 128 KiB: relocated uboot
-	sub	r0, r0, #CONFIG_SYS_MALLOC_LEN @ malloc area
-	sub	r0, r0, #CONFIG_SYS_GBL_DATA_SIZE @ bdinfo
-#ifdef CONFIG_USE_IRQ
-	sub	r0, r0, #(CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ)
-#endif
-	sub	sp, r0, #12		@ leave 3 words for abort-stack
-	and	sp, sp, #~7		@ 8 byte alinged for (ldr/str)d
-
-	/* Clear BSS (if any). Is below tx (watch load addr - need space) */
-clear_bss:
-	ldr	r0, _bss_start		@ find start of bss segment
-	ldr	r1, _bss_end		@ stop here
-	mov	r2, #0x00000000		@ clear value
-clbss_l:
-	str	r2, [r0]		@ clear BSS location
-	cmp	r0, r1			@ are we at the end yet
-	add	r0, r0, #4		@ increment clear index pointer
-	bne	clbss_l			@ keep clearing till at end
-
-	ldr	pc, _start_armboot	@ jump to C code
-
-_start_armboot: .word start_armboot
-
-
-/*************************************************************************
- *
- * CPU_init_critical registers
- *
- * setup important registers
- * setup memory timing
- *
- *************************************************************************/
-cpu_init_crit:
-	/*
-	 * Invalidate L1 I/D
-	 */
-	mov	r0, #0			@ set up for MCR
-	mcr	p15, 0, r0, c8, c7, 0	@ invalidate TLBs
-	mcr	p15, 0, r0, c7, c5, 0	@ invalidate icache
-
-	/*
-	 * disable MMU stuff and caches
-	 */
-	mrc	p15, 0, r0, c1, c0, 0
-	bic	r0, r0, #0x00002000	@ clear bits 13 (--V-)
-	bic	r0, r0, #0x00000007	@ clear bits 2:0 (-CAM)
-	orr	r0, r0, #0x00000002	@ set bit 1 (--A-) Align
-	orr	r0, r0, #0x00000800	@ set bit 12 (Z---) BTB
-	mcr	p15, 0, r0, c1, c0, 0
-
-	/*
-	 * Jump to board specific initialization...
-	 * The Mask ROM will have already initialized
-	 * basic memory. Go here to bump up clock rate and handle
-	 * wake up conditions.
-	 */
-	mov	ip, lr			@ persevere link reg across call
-	bl	lowlevel_init		@ go setup pll,mux,memory
-	mov	lr, ip			@ restore link
-	mov	pc, lr			@ back to my caller
-/*
- *************************************************************************
- *
- * Interrupt handling
- *
- *************************************************************************
- */
-@
-@ IRQ stack frame.
-@
-#define S_FRAME_SIZE	72
-
-#define S_OLD_R0	68
-#define S_PSR		64
-#define S_PC		60
-#define S_LR		56
-#define S_SP		52
-
-#define S_IP		48
-#define S_FP		44
-#define S_R10		40
-#define S_R9		36
-#define S_R8		32
-#define S_R7		28
-#define S_R6		24
-#define S_R5		20
-#define S_R4		16
-#define S_R3		12
-#define S_R2		8
-#define S_R1		4
-#define S_R0		0
-
-#define MODE_SVC 0x13
-#define I_BIT	 0x80
-
-/*
- * use bad_save_user_regs for abort/prefetch/undef/swi ...
- * use irq_save_user_regs / irq_restore_user_regs for IRQ/FIQ handling
- */
-
-	.macro	bad_save_user_regs
-	sub	sp, sp, #S_FRAME_SIZE		@ carve out a frame on current
-						@ user stack
-	stmia	sp, {r0 - r12}			@ Save user registers (now in
-						@ svc mode) r0-r12
-
-	ldr	r2, _armboot_start
-	sub	r2, r2, #(CONFIG_SYS_MALLOC_LEN)
-	sub	r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE + 8)	@ set base 2 words into abort
-						@ stack
-	ldmia	r2, {r2 - r3}			@ get values for "aborted" pc
-						@ and cpsr (into parm regs)
-	add	r0, sp, #S_FRAME_SIZE		@ grab pointer to old stack
-
-	add	r5, sp, #S_SP
-	mov	r1, lr
-	stmia	r5, {r0 - r3}			@ save sp_SVC, lr_SVC, pc, cpsr
-	mov	r0, sp				@ save current stack into r0
-						@ (param register)
-	.endm
-
-	.macro	irq_save_user_regs
-	sub	sp, sp, #S_FRAME_SIZE
-	stmia	sp, {r0 - r12}			@ Calling r0-r12
-	add	r8, sp, #S_PC			@ !! R8 NEEDS to be saved !!
-						@ a reserved stack spot would
-						@ be good.
-	stmdb	r8, {sp, lr}^			@ Calling SP, LR
-	str	lr, [r8, #0]			@ Save calling PC
-	mrs	r6, spsr
-	str	r6, [r8, #4]			@ Save CPSR
-	str	r0, [r8, #8]			@ Save OLD_R0
-	mov	r0, sp
-	.endm
-
-	.macro	irq_restore_user_regs
-	ldmia	sp, {r0 - lr}^			@ Calling r0 - lr
-	mov	r0, r0
-	ldr	lr, [sp, #S_PC]			@ Get PC
-	add	sp, sp, #S_FRAME_SIZE
-	subs	pc, lr, #4			@ return & move spsr_svc into
-						@ cpsr
-	.endm
-
-	.macro get_bad_stack
-	ldr	r13, _armboot_start		@ setup our mode stack (enter
-						@ in banked mode)
-	sub	r13, r13, #(CONFIG_SYS_MALLOC_LEN)	@ move past malloc pool
-	sub	r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE + 8) @ move to reserved a couple
-						@ spots for abort stack
-
-	str	lr, [r13]			@ save caller lr in position 0
-						@ of saved stack
-	mrs	lr, spsr			@ get the spsr
-	str	lr, [r13, #4]			@ save spsr in position 1 of
-						@ saved stack
-
-	mov	r13, #MODE_SVC			@ prepare SVC-Mode
-	@ msr	spsr_c, r13
-	msr	spsr, r13			@ switch modes, make sure
-						@ moves will execute
-	mov	lr, pc				@ capture return pc
-	movs	pc, lr				@ jump to next instruction &
-						@ switch modes.
-	.endm
-
-	.macro get_bad_stack_swi
-	sub	r13, r13, #4			@ space on current stack for
-						@ scratch reg.
-	str	r0, [r13]			@ save R0's value.
-	ldr	r0, _armboot_start		@ get data regions start
-	sub	r0, r0, #(CONFIG_SYS_MALLOC_LEN)	@ move past malloc pool
-	sub	r0, r0, #(CONFIG_SYS_GBL_DATA_SIZE + 8)	@ move past gbl and a couple
-						@ spots for abort stack
-	str	lr, [r0]			@ save caller lr in position 0
-						@ of saved stack
-	mrs	r0, spsr			@ get the spsr
-	str	lr, [r0, #4]			@ save spsr in position 1 of
-						@ saved stack
-	ldr	r0, [r13]			@ restore r0
-	add	r13, r13, #4			@ pop stack entry
-	.endm
-
-	.macro get_irq_stack			@ setup IRQ stack
-	ldr	sp, IRQ_STACK_START
-	.endm
-
-	.macro get_fiq_stack			@ setup FIQ stack
-	ldr	sp, FIQ_STACK_START
-	.endm
-
-/*
- * exception handlers
- */
-	.align	5
-undefined_instruction:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_undefined_instruction
-
-	.align	5
-software_interrupt:
-	get_bad_stack_swi
-	bad_save_user_regs
-	bl	do_software_interrupt
-
-	.align	5
-prefetch_abort:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_prefetch_abort
-
-	.align	5
-data_abort:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_data_abort
-
-	.align	5
-not_used:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_not_used
-
-#ifdef CONFIG_USE_IRQ
-
-	.align	5
-irq:
-	get_irq_stack
-	irq_save_user_regs
-	bl	do_irq
-	irq_restore_user_regs
-
-	.align	5
-fiq:
-	get_fiq_stack
-	/* someone ought to write a more effective fiq_save_user_regs */
-	irq_save_user_regs
-	bl	do_fiq
-	irq_restore_user_regs
-
-#else
-
-	.align	5
-irq:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_irq
-
-	.align	5
-fiq:
-	get_bad_stack
-	bad_save_user_regs
-	bl	do_fiq
-
-#endif