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

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

1 files changed, 0 insertions, 684 deletions

diff --git a/cpu/mpc8xx/start.S b/cpu/mpc8xx/start.S
deleted file mode 100644
index 7cf602f..0000000
--- a/cpu/mpc8xx/start.S
+++ /dev/null
@@ -1,684 +0,0 @@
-/*
- *  Copyright (C) 1998	Dan Malek <dmalek@jlc.net>
- *  Copyright (C) 1999	Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
- *  Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de>
- *
- * 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
- */
-
-/*  U-Boot - Startup Code for PowerPC based Embedded Boards
- *
- *
- *  The processor starts at 0x00000100 and the code is executed
- *  from flash. The code is organized to be at an other address
- *  in memory, but as long we don't jump around before relocating,
- *  board_init lies at a quite high address and when the cpu has
- *  jumped there, everything is ok.
- *  This works because the cpu gives the FLASH (CS0) the whole
- *  address space at startup, and board_init lies as a echo of
- *  the flash somewhere up there in the memory map.
- *
- *  board_init will change CS0 to be positioned at the correct
- *  address and (s)dram will be positioned at address 0
- */
-#include <config.h>
-#include <mpc8xx.h>
-#include <timestamp.h>
-#include <version.h>
-
-#define CONFIG_8xx 1		/* needed for Linux kernel header files */
-#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-
-#include <asm/cache.h>
-#include <asm/mmu.h>
-
-#ifndef  CONFIG_IDENT_STRING
-#define  CONFIG_IDENT_STRING ""
-#endif
-
-/* We don't want the  MMU yet.
-*/
-#undef	MSR_KERNEL
-#define MSR_KERNEL ( MSR_ME | MSR_RI )	/* Machine Check and Recoverable Interr. */
-
-/*
- * Set up GOT: Global Offset Table
- *
- * Use r12 to access the GOT
- */
-	START_GOT
-	GOT_ENTRY(_GOT2_TABLE_)
-	GOT_ENTRY(_FIXUP_TABLE_)
-
-	GOT_ENTRY(_start)
-	GOT_ENTRY(_start_of_vectors)
-	GOT_ENTRY(_end_of_vectors)
-	GOT_ENTRY(transfer_to_handler)
-
-	GOT_ENTRY(__init_end)
-	GOT_ENTRY(_end)
-	GOT_ENTRY(__bss_start)
-	END_GOT
-
-/*
- * r3 - 1st arg to board_init(): IMMP pointer
- * r4 - 2nd arg to board_init(): boot flag
- */
-	.text
-	.long	0x27051956		/* U-Boot Magic Number			*/
-	.globl	version_string
-version_string:
-	.ascii U_BOOT_VERSION
-	.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
-	.ascii CONFIG_IDENT_STRING, "\0"
-
-	. = EXC_OFF_SYS_RESET
-	.globl	_start
-_start:
-	lis	r3, CONFIG_SYS_IMMR@h		/* position IMMR */
-	mtspr	638, r3
-	li	r21, BOOTFLAG_COLD	/* Normal Power-On: Boot from FLASH	*/
-	b	boot_cold
-
-	. = EXC_OFF_SYS_RESET + 0x10
-
-	.globl	_start_warm
-_start_warm:
-	li	r21, BOOTFLAG_WARM	/* Software reboot			*/
-	b	boot_warm
-
-boot_cold:
-boot_warm:
-
-	/* Initialize machine status; enable machine check interrupt		*/
-	/*----------------------------------------------------------------------*/
-	li	r3, MSR_KERNEL		/* Set ME, RI flags */
-	mtmsr	r3
-	mtspr	SRR1, r3		/* Make SRR1 match MSR */
-
-	mfspr	r3, ICR			/* clear Interrupt Cause Register */
-
-	/* Initialize debug port registers					*/
-	/*----------------------------------------------------------------------*/
-	xor	r0, r0, r0		/* Clear R0 */
-	mtspr	LCTRL1, r0		/* Initialize debug port regs */
-	mtspr	LCTRL2, r0
-	mtspr	COUNTA, r0
-	mtspr	COUNTB, r0
-
-	/* Reset the caches							*/
-	/*----------------------------------------------------------------------*/
-
-	mfspr	r3, IC_CST		/* Clear error bits */
-	mfspr	r3, DC_CST
-
-	lis	r3, IDC_UNALL@h		/* Unlock all */
-	mtspr	IC_CST, r3
-	mtspr	DC_CST, r3
-
-	lis	r3, IDC_INVALL@h	/* Invalidate all */
-	mtspr	IC_CST, r3
-	mtspr	DC_CST, r3
-
-	lis	r3, IDC_DISABLE@h	/* Disable data cache */
-	mtspr	DC_CST, r3
-
-#if !defined(CONFIG_SYS_DELAYED_ICACHE)
-					/* On IP860 and PCU E,
-					 * we cannot enable IC yet
-					 */
-	lis	r3, IDC_ENABLE@h	/* Enable instruction cache */
-#endif
-	mtspr	IC_CST, r3
-
-	/* invalidate all tlb's							*/
-	/*----------------------------------------------------------------------*/
-
-	tlbia
-	isync
-
-	/*
-	 * Calculate absolute address in FLASH and jump there
-	 *----------------------------------------------------------------------*/
-
-	lis	r3, CONFIG_SYS_MONITOR_BASE@h
-	ori	r3, r3, CONFIG_SYS_MONITOR_BASE@l
-	addi	r3, r3, in_flash - _start + EXC_OFF_SYS_RESET
-	mtlr	r3
-	blr
-
-in_flash:
-
-	/* initialize some SPRs that are hard to access from C			*/
-	/*----------------------------------------------------------------------*/
-
-	lis	r3, CONFIG_SYS_IMMR@h		/* pass IMMR as arg1 to C routine */
-	ori	r1, r3, CONFIG_SYS_INIT_SP_OFFSET /* set up the stack in internal DPRAM */
-	/* Note: R0 is still 0 here */
-	stwu	r0, -4(r1)		/* clear final stack frame so that	*/
-	stwu	r0, -4(r1)		/* stack backtraces terminate cleanly	*/
-
-	/*
-	 * Disable serialized ifetch and show cycles
-	 * (i.e. set processor to normal mode).
-	 * This is also a silicon bug workaround, see errata
-	 */
-
-	li	r2, 0x0007
-	mtspr	ICTRL, r2
-
-	/* Set up debug mode entry */
-
-	lis	r2, CONFIG_SYS_DER@h
-	ori	r2, r2, CONFIG_SYS_DER@l
-	mtspr	DER, r2
-
-	/* let the C-code set up the rest					*/
-	/*									*/
-	/* Be careful to keep code relocatable !				*/
-	/*----------------------------------------------------------------------*/
-
-	GET_GOT			/* initialize GOT access			*/
-
-	/* r3: IMMR */
-	bl	cpu_init_f	/* run low-level CPU init code     (from Flash)	*/
-
-	mr	r3, r21
-	/* r3: BOOTFLAG */
-	bl	board_init_f	/* run 1st part of board init code (from Flash) */
-
-
-	.globl	_start_of_vectors
-_start_of_vectors:
-
-/* Machine check */
-	STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
-
-/* Data Storage exception.  "Never" generated on the 860. */
-	STD_EXCEPTION(0x300, DataStorage, UnknownException)
-
-/* Instruction Storage exception.  "Never" generated on the 860. */
-	STD_EXCEPTION(0x400, InstStorage, UnknownException)
-
-/* External Interrupt exception. */
-	STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
-
-/* Alignment exception. */
-	. = 0x600
-Alignment:
-	EXCEPTION_PROLOG(SRR0, SRR1)
-	mfspr	r4,DAR
-	stw	r4,_DAR(r21)
-	mfspr	r5,DSISR
-	stw	r5,_DSISR(r21)
-	addi	r3,r1,STACK_FRAME_OVERHEAD
-	EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE)
-
-/* Program check exception */
-	. = 0x700
-ProgramCheck:
-	EXCEPTION_PROLOG(SRR0, SRR1)
-	addi	r3,r1,STACK_FRAME_OVERHEAD
-	EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException,
-		MSR_KERNEL, COPY_EE)
-
-	/* No FPU on MPC8xx.  This exception is not supposed to happen.
-	*/
-	STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
-
-	/* I guess we could implement decrementer, and may have
-	 * to someday for timekeeping.
-	 */
-	STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
-	STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
-	STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-	STD_EXCEPTION(0xc00, SystemCall, UnknownException)
-	STD_EXCEPTION(0xd00, SingleStep, UnknownException)
-
-	STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
-	STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
-
-	/* On the MPC8xx, this is a software emulation interrupt.  It occurs
-	 * for all unimplemented and illegal instructions.
-	 */
-	STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException)
-
-	STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
-	STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
-	STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException)
-	STD_EXCEPTION(0x1400, DataTLBError, UnknownException)
-
-	STD_EXCEPTION(0x1500, Reserved5, UnknownException)
-	STD_EXCEPTION(0x1600, Reserved6, UnknownException)
-	STD_EXCEPTION(0x1700, Reserved7, UnknownException)
-	STD_EXCEPTION(0x1800, Reserved8, UnknownException)
-	STD_EXCEPTION(0x1900, Reserved9, UnknownException)
-	STD_EXCEPTION(0x1a00, ReservedA, UnknownException)
-	STD_EXCEPTION(0x1b00, ReservedB, UnknownException)
-
-	STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException)
-	STD_EXCEPTION(0x1d00, InstructionBreakpoint, DebugException)
-	STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException)
-	STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException)
-
-
-	.globl	_end_of_vectors
-_end_of_vectors:
-
-
-	. = 0x2000
-
-/*
- * This code finishes saving the registers to the exception frame
- * and jumps to the appropriate handler for the exception.
- * Register r21 is pointer into trap frame, r1 has new stack pointer.
- */
-	.globl	transfer_to_handler
-transfer_to_handler:
-	stw	r22,_NIP(r21)
-	lis	r22,MSR_POW@h
-	andc	r23,r23,r22
-	stw	r23,_MSR(r21)
-	SAVE_GPR(7, r21)
-	SAVE_4GPRS(8, r21)
-	SAVE_8GPRS(12, r21)
-	SAVE_8GPRS(24, r21)
-	mflr	r23
-	andi.	r24,r23,0x3f00		/* get vector offset */
-	stw	r24,TRAP(r21)
-	li	r22,0
-	stw	r22,RESULT(r21)
-	mtspr	SPRG2,r22		/* r1 is now kernel sp */
-	lwz	r24,0(r23)		/* virtual address of handler */
-	lwz	r23,4(r23)		/* where to go when done */
-	mtspr	SRR0,r24
-	mtspr	SRR1,r20
-	mtlr	r23
-	SYNC
-	rfi				/* jump to handler, enable MMU */
-
-int_return:
-	mfmsr	r28			/* Disable interrupts */
-	li	r4,0
-	ori	r4,r4,MSR_EE
-	andc	r28,r28,r4
-	SYNC				/* Some chip revs need this... */
-	mtmsr	r28
-	SYNC
-	lwz	r2,_CTR(r1)
-	lwz	r0,_LINK(r1)
-	mtctr	r2
-	mtlr	r0
-	lwz	r2,_XER(r1)
-	lwz	r0,_CCR(r1)
-	mtspr	XER,r2
-	mtcrf	0xFF,r0
-	REST_10GPRS(3, r1)
-	REST_10GPRS(13, r1)
-	REST_8GPRS(23, r1)
-	REST_GPR(31, r1)
-	lwz	r2,_NIP(r1)		/* Restore environment */
-	lwz	r0,_MSR(r1)
-	mtspr	SRR0,r2
-	mtspr	SRR1,r0
-	lwz	r0,GPR0(r1)
-	lwz	r2,GPR2(r1)
-	lwz	r1,GPR1(r1)
-	SYNC
-	rfi
-
-/* Cache functions.
-*/
-	.globl	icache_enable
-icache_enable:
-	SYNC
-	lis	r3, IDC_INVALL@h
-	mtspr	IC_CST, r3
-	lis	r3, IDC_ENABLE@h
-	mtspr	IC_CST, r3
-	blr
-
-	.globl	icache_disable
-icache_disable:
-	SYNC
-	lis	r3, IDC_DISABLE@h
-	mtspr	IC_CST, r3
-	blr
-
-	.globl	icache_status
-icache_status:
-	mfspr	r3, IC_CST
-	srwi	r3, r3, 31	/* >>31 => select bit 0 */
-	blr
-
-	.globl	dcache_enable
-dcache_enable:
-#if 0
-	SYNC
-#endif
-#if 1
-	lis	r3, 0x0400		/* Set cache mode with MMU off */
-	mtspr	MD_CTR, r3
-#endif
-
-	lis	r3, IDC_INVALL@h
-	mtspr	DC_CST, r3
-#if 0
-	lis	r3, DC_SFWT@h
-	mtspr	DC_CST, r3
-#endif
-	lis	r3, IDC_ENABLE@h
-	mtspr	DC_CST, r3
-	blr
-
-	.globl	dcache_disable
-dcache_disable:
-	SYNC
-	lis	r3, IDC_DISABLE@h
-	mtspr	DC_CST, r3
-	lis	r3, IDC_INVALL@h
-	mtspr	DC_CST, r3
-	blr
-
-	.globl	dcache_status
-dcache_status:
-	mfspr	r3, DC_CST
-	srwi	r3, r3, 31	/* >>31 => select bit 0 */
-	blr
-
-	.globl	dc_read
-dc_read:
-	mtspr	DC_ADR, r3
-	mfspr	r3, DC_DAT
-	blr
-
-/*
- * unsigned int get_immr (unsigned int mask)
- *
- * return (mask ? (IMMR & mask) : IMMR);
- */
-	.globl	get_immr
-get_immr:
-	mr	r4,r3		/* save mask */
-	mfspr	r3, IMMR	/* IMMR */
-	cmpwi	0,r4,0		/* mask != 0 ? */
-	beq	4f
-	and	r3,r3,r4	/* IMMR & mask */
-4:
-	blr
-
-	.globl get_pvr
-get_pvr:
-	mfspr	r3, PVR
-	blr
-
-
-	.globl wr_ic_cst
-wr_ic_cst:
-	mtspr	IC_CST, r3
-	blr
-
-	.globl rd_ic_cst
-rd_ic_cst:
-	mfspr	r3, IC_CST
-	blr
-
-	.globl wr_ic_adr
-wr_ic_adr:
-	mtspr	IC_ADR, r3
-	blr
-
-
-	.globl wr_dc_cst
-wr_dc_cst:
-	mtspr	DC_CST, r3
-	blr
-
-	.globl rd_dc_cst
-rd_dc_cst:
-	mfspr	r3, DC_CST
-	blr
-
-	.globl wr_dc_adr
-wr_dc_adr:
-	mtspr	DC_ADR, r3
-	blr
-
-/*------------------------------------------------------------------------------*/
-
-/*
- * void relocate_code (addr_sp, gd, addr_moni)
- *
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
- * r3 = dest
- * r4 = src
- * r5 = length in bytes
- * r6 = cachelinesize
- */
-	.globl	relocate_code
-relocate_code:
-	mr	r1,  r3		/* Set new stack pointer		*/
-	mr	r9,  r4		/* Save copy of Global Data pointer	*/
-	mr	r10, r5		/* Save copy of Destination Address	*/
-
-	GET_GOT
-	mr	r3,  r5				/* Destination Address	*/
-	lis	r4, CONFIG_SYS_MONITOR_BASE@h		/* Source      Address	*/
-	ori	r4, r4, CONFIG_SYS_MONITOR_BASE@l
-	lwz	r5, GOT(__init_end)
-	sub	r5, r5, r4
-	li	r6, CONFIG_SYS_CACHELINE_SIZE		/* Cache Line Size	*/
-
-	/*
-	 * Fix GOT pointer:
-	 *
-	 * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address
-	 *
-	 * Offset:
-	 */
-	sub	r15, r10, r4
-
-	/* First our own GOT */
-	add	r12, r12, r15
-	/* then the one used by the C code */
-	add	r30, r30, r15
-
-	/*
-	 * Now relocate code
-	 */
-
-	cmplw	cr1,r3,r4
-	addi	r0,r5,3
-	srwi.	r0,r0,2
-	beq	cr1,4f		/* In place copy is not necessary	*/
-	beq	7f		/* Protect against 0 count		*/
-	mtctr	r0
-	bge	cr1,2f
-
-	la	r8,-4(r4)
-	la	r7,-4(r3)
-1:	lwzu	r0,4(r8)
-	stwu	r0,4(r7)
-	bdnz	1b
-	b	4f
-
-2:	slwi	r0,r0,2
-	add	r8,r4,r0
-	add	r7,r3,r0
-3:	lwzu	r0,-4(r8)
-	stwu	r0,-4(r7)
-	bdnz	3b
-
-/*
- * Now flush the cache: note that we must start from a cache aligned
- * address. Otherwise we might miss one cache line.
- */
-4:	cmpwi	r6,0
-	add	r5,r3,r5
-	beq	7f		/* Always flush prefetch queue in any case */
-	subi	r0,r6,1
-	andc	r3,r3,r0
-	mr	r4,r3
-5:	dcbst	0,r4
-	add	r4,r4,r6
-	cmplw	r4,r5
-	blt	5b
-	sync			/* Wait for all dcbst to complete on bus */
-	mr	r4,r3
-6:	icbi	0,r4
-	add	r4,r4,r6
-	cmplw	r4,r5
-	blt	6b
-7:	sync			/* Wait for all icbi to complete on bus	*/
-	isync
-
-/*
- * We are done. Do not return, instead branch to second part of board
- * initialization, now running from RAM.
- */
-
-	addi	r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
-	mtlr	r0
-	blr
-
-in_ram:
-
-	/*
-	 * Relocation Function, r12 point to got2+0x8000
-	 *
-	 * Adjust got2 pointers, no need to check for 0, this code
-	 * already puts a few entries in the table.
-	 */
-	li	r0,__got2_entries@sectoff@l
-	la	r3,GOT(_GOT2_TABLE_)
-	lwz	r11,GOT(_GOT2_TABLE_)
-	mtctr	r0
-	sub	r11,r3,r11
-	addi	r3,r3,-4
-1:	lwzu	r0,4(r3)
-	cmpwi	r0,0
-	beq-	2f
-	add	r0,r0,r11
-	stw	r0,0(r3)
-2:	bdnz	1b
-
-	/*
-	 * Now adjust the fixups and the pointers to the fixups
-	 * in case we need to move ourselves again.
-	 */
-	li	r0,__fixup_entries@sectoff@l
-	lwz	r3,GOT(_FIXUP_TABLE_)
-	cmpwi	r0,0
-	mtctr	r0
-	addi	r3,r3,-4
-	beq	4f
-3:	lwzu	r4,4(r3)
-	lwzux	r0,r4,r11
-	add	r0,r0,r11
-	stw	r10,0(r3)
-	stw	r0,0(r4)
-	bdnz	3b
-4:
-clear_bss:
-	/*
-	 * Now clear BSS segment
-	 */
-	lwz	r3,GOT(__bss_start)
-	lwz	r4,GOT(_end)
-
-	cmplw	0, r3, r4
-	beq	6f
-
-	li	r0, 0
-5:
-	stw	r0, 0(r3)
-	addi	r3, r3, 4
-	cmplw	0, r3, r4
-	bne	5b
-6:
-
-	mr	r3, r9		/* Global Data pointer		*/
-	mr	r4, r10		/* Destination Address		*/
-	bl	board_init_r
-
-	/*
-	 * Copy exception vector code to low memory
-	 *
-	 * r3: dest_addr
-	 * r7: source address, r8: end address, r9: target address
-	 */
-	.globl	trap_init
-trap_init:
-	mflr	r4			/* save link register		*/
-	GET_GOT
-	lwz	r7, GOT(_start)
-	lwz	r8, GOT(_end_of_vectors)
-
-	li	r9, 0x100		/* reset vector always at 0x100 */
-
-	cmplw	0, r7, r8
-	bgelr				/* return if r7>=r8 - just in case */
-1:
-	lwz	r0, 0(r7)
-	stw	r0, 0(r9)
-	addi	r7, r7, 4
-	addi	r9, r9, 4
-	cmplw	0, r7, r8
-	bne	1b
-
-	/*
-	 * relocate `hdlr' and `int_return' entries
-	 */
-	li	r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
-	li	r8, Alignment - _start + EXC_OFF_SYS_RESET
-2:
-	bl	trap_reloc
-	addi	r7, r7, 0x100		/* next exception vector	*/
-	cmplw	0, r7, r8
-	blt	2b
-
-	li	r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
-	bl	trap_reloc
-
-	li	r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
-	bl	trap_reloc
-
-	li	r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
-	li	r8, SystemCall - _start + EXC_OFF_SYS_RESET
-3:
-	bl	trap_reloc
-	addi	r7, r7, 0x100		/* next exception vector	*/
-	cmplw	0, r7, r8
-	blt	3b
-
-	li	r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
-	li	r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
-4:
-	bl	trap_reloc
-	addi	r7, r7, 0x100		/* next exception vector	*/
-	cmplw	0, r7, r8
-	blt	4b
-
-	mtlr	r4			/* restore link register	*/
-	blr