ramips: move relocating loader to common location

Allow other targets to use it, too.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45162 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 1 insertions, 372 deletions

diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index 45ae3a585a..14f6f1ef7e 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -981,7 +981,7 @@ endif
 ifeq ($(SUBTARGET),mt7621)
 define Build/Compile
 	rm -rf $(KDIR)/relocate
-	$(CP) ./relocate $(KDIR)
+	$(CP) ../../generic/image/relocate $(KDIR)
 	$(MAKE) -C $(KDIR)/relocate KERNEL_ADDR=$(KERNEL_LOADADDR) CROSS_COMPILE=$(TARGET_CROSS)
 endef
 endif
diff --git a/target/linux/ramips/image/relocate/Makefile b/target/linux/ramips/image/relocate/Makefile
deleted file mode 100644
index 500423b63b..0000000000
--- a/target/linux/ramips/image/relocate/Makefile
+++ /dev/null
@@ -1,72 +0,0 @@
-#
-# Makefile for the kernel relocation stub for MIPS devices
-#
-# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
-# Copyright (C) 2015 Felix Fietkau <nbd@openwrt.org>
-#
-# Some parts of this file was based on the OpenWrt specific lzma-loader
-# for the BCM47xx and ADM5120 based boards:
-#	Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
-#	Copyright (C) 2005 Mineharu Takahara <mtakahar@yahoo.com>
-#	Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 2 as published
-# by the Free Software Foundation.
-#
-
-LOADADDR	:=
-LZMA_TEXT_START	:= 0x81000000
-LOADER_DATA	:=
-BOARD		:=
-FLASH_OFFS	:=
-FLASH_MAX	:=
-PLATFORM	:=
-
-CC		:= $(CROSS_COMPILE)gcc
-LD		:= $(CROSS_COMPILE)ld
-OBJCOPY		:= $(CROSS_COMPILE)objcopy
-OBJDUMP		:= $(CROSS_COMPILE)objdump
-
-BIN_FLAGS	:= -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
-
-CFLAGS		= -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
-		  -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
-		  -mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
-		  -fno-common -ffreestanding -fhonour-copts \
-		  -mabi=32 -march=mips32r2 \
-		  -Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap \
-		  -DCONFIG_CACHELINE_SIZE=32 -DKERNEL_ADDR=$(KERNEL_ADDR)
-
-ASFLAGS		= $(CFLAGS) -D__ASSEMBLY__
-
-LDFLAGS		= -static --gc-sections -no-warn-mismatch
-LDFLAGS		+= -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
-
-O_FORMAT 	= $(shell $(OBJDUMP) -i | head -2 | grep elf32)
-
-OBJECTS		:= head.o
-
-all: head.o loader.bin
-
-# Don't build dependencies, this may die if $(CC) isn't gcc
-dep:
-
-install:
-
-%.o : %.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-%.o : %.S
-	$(CC) $(ASFLAGS) -c -o $@ $<
-
-loader: $(OBJECTS)
-	$(LD) $(LDFLAGS) -o $@ $(OBJECTS)
-
-loader.bin: loader
-	$(OBJCOPY) $(BIN_FLAGS) $< $@
-
-mrproper: clean
-
-clean:
-	rm -f loader *.elf *.bin *.o
diff --git a/target/linux/ramips/image/relocate/cacheops.h b/target/linux/ramips/image/relocate/cacheops.h
deleted file mode 100644
index 70bcad7694..0000000000
--- a/target/linux/ramips/image/relocate/cacheops.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Cache operations for the cache instruction.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * (C) Copyright 1996, 97, 99, 2002, 03 Ralf Baechle
- * (C) Copyright 1999 Silicon Graphics, Inc.
- */
-#ifndef	__ASM_CACHEOPS_H
-#define	__ASM_CACHEOPS_H
-
-/*
- * Cache Operations available on all MIPS processors with R4000-style caches
- */
-#define Index_Invalidate_I      0x00
-#define Index_Writeback_Inv_D   0x01
-#define Index_Load_Tag_I	0x04
-#define Index_Load_Tag_D	0x05
-#define Index_Store_Tag_I	0x08
-#define Index_Store_Tag_D	0x09
-#if defined(CONFIG_CPU_LOONGSON2)
-#define Hit_Invalidate_I	0x00
-#else
-#define Hit_Invalidate_I	0x10
-#endif
-#define Hit_Invalidate_D	0x11
-#define Hit_Writeback_Inv_D	0x15
-
-/*
- * R4000-specific cacheops
- */
-#define Create_Dirty_Excl_D	0x0d
-#define Fill			0x14
-#define Hit_Writeback_I		0x18
-#define Hit_Writeback_D		0x19
-
-/*
- * R4000SC and R4400SC-specific cacheops
- */
-#define Index_Invalidate_SI     0x02
-#define Index_Writeback_Inv_SD  0x03
-#define Index_Load_Tag_SI	0x06
-#define Index_Load_Tag_SD	0x07
-#define Index_Store_Tag_SI	0x0A
-#define Index_Store_Tag_SD	0x0B
-#define Create_Dirty_Excl_SD	0x0f
-#define Hit_Invalidate_SI	0x12
-#define Hit_Invalidate_SD	0x13
-#define Hit_Writeback_Inv_SD	0x17
-#define Hit_Writeback_SD	0x1b
-#define Hit_Set_Virtual_SI	0x1e
-#define Hit_Set_Virtual_SD	0x1f
-
-/*
- * R5000-specific cacheops
- */
-#define R5K_Page_Invalidate_S	0x17
-
-/*
- * RM7000-specific cacheops
- */
-#define Page_Invalidate_T	0x16
-
-/*
- * R10000-specific cacheops
- *
- * Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
- * Most of the _S cacheops are identical to the R4000SC _SD cacheops.
- */
-#define Index_Writeback_Inv_S	0x03
-#define Index_Load_Tag_S	0x07
-#define Index_Store_Tag_S	0x0B
-#define Hit_Invalidate_S	0x13
-#define Cache_Barrier		0x14
-#define Hit_Writeback_Inv_S	0x17
-#define Index_Load_Data_I	0x18
-#define Index_Load_Data_D	0x19
-#define Index_Load_Data_S	0x1b
-#define Index_Store_Data_I	0x1c
-#define Index_Store_Data_D	0x1d
-#define Index_Store_Data_S	0x1f
-
-#endif	/* __ASM_CACHEOPS_H */
diff --git a/target/linux/ramips/image/relocate/cp0regdef.h b/target/linux/ramips/image/relocate/cp0regdef.h
deleted file mode 100644
index c1188ad8c8..0000000000
--- a/target/linux/ramips/image/relocate/cp0regdef.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
- *
- * Copyright (C) 2001, Monta Vista Software
- * Author: jsun@mvista.com or jsun@junsun.net
- */
-#ifndef _cp0regdef_h_
-#define _cp0regdef_h_
-
-#define CP0_INDEX $0
-#define CP0_RANDOM $1
-#define CP0_ENTRYLO0 $2
-#define CP0_ENTRYLO1 $3
-#define CP0_CONTEXT $4
-#define CP0_PAGEMASK $5
-#define CP0_WIRED $6
-#define CP0_BADVADDR $8
-#define CP0_COUNT $9
-#define CP0_ENTRYHI $10
-#define CP0_COMPARE $11
-#define CP0_STATUS $12
-#define CP0_CAUSE $13
-#define CP0_EPC $14
-#define CP0_PRID $15
-#define CP0_CONFIG $16
-#define CP0_LLADDR $17
-#define CP0_WATCHLO $18
-#define CP0_WATCHHI $19
-#define CP0_XCONTEXT $20
-#define CP0_FRAMEMASK $21
-#define CP0_DIAGNOSTIC $22
-#define CP0_PERFORMANCE $25
-#define CP0_ECC $26
-#define CP0_CACHEERR $27
-#define CP0_TAGLO $28
-#define CP0_TAGHI $29
-#define CP0_ERROREPC $30
-
-#endif
diff --git a/target/linux/ramips/image/relocate/head.S b/target/linux/ramips/image/relocate/head.S
deleted file mode 100644
index 3e5b374ba0..0000000000
--- a/target/linux/ramips/image/relocate/head.S
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Kernel relocation stub for MIPS devices
- *
- * Copyright (C) 2015 Felix Fietkau <nbd@openwrt.org>
- *
- * Based on:
- *
- * LZMA compressed kernel loader for Atheros AR7XXX/AR9XXX based boards
- *
- * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
- *
- * Some parts of this code was based on the OpenWrt specific lzma-loader
- * for the BCM47xx and ADM5120 based boards:
- *	Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
- *	Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <asm/asm.h>
-#include <asm/regdef.h>
-#include "cp0regdef.h"
-#include "cacheops.h"
-
-#define KSEG0		0x80000000
-
-	.macro	ehb
-	sll     zero, 3
-	.endm
-
-	.macro reset
-	li t0, 0xbe000034
-	lw t1, 0(t0)
-	ori t1, 1
-	sw t1, 0(t0)
-	.endm
-
-	.text
-
-LEAF(startup)
-	.set noreorder
-	.set mips32
-
-	.fill 0x10000
-
-	mtc0	zero, CP0_WATCHLO	# clear watch registers
-	mtc0	zero, CP0_WATCHHI
-	mtc0	zero, CP0_CAUSE		# clear before writing status register
-
-	mfc0	t0, CP0_STATUS
-	li	t1, 0x1000001f
-	or	t0, t1
-	xori	t0, 0x1f
-	mtc0	t0, CP0_STATUS
-	ehb
-
-	mtc0	zero, CP0_COUNT
-	mtc0	zero, CP0_COMPARE
-	ehb
-
-	la	t0, __reloc_label	# get linked address of label
-	bal	__reloc_label		# branch and link to label to
-	nop				# get actual address
-__reloc_label:
-	subu	t0, ra, t0		# get reloc_delta
-
-	/* Copy our code to the right place */
-	la	t1, _code_start		# get linked address of _code_start
-	la	t2, _code_end		# get linked address of _code_end
-
-	addu	t4, t2, t0		# calculate actual address of _code_end
-	lw	t5, 0(t4)		# get extra data size
-
-	add	t2, t5
-	add	t2, 4
-
-	add	t0, t1			# calculate actual address of _code_start
-
-__reloc_copy:
-	lw	t3, 0(t0)
-	sw	t3, 0(t1)
-	add	t1, 4
-	blt	t1, t2, __reloc_copy
-	add	t0, 4
-
-	/* flush cache */
-	la	t0, _code_start
-	la	t1, _code_end
-
-	li	t2, ~(CONFIG_CACHELINE_SIZE - 1)
-	and	t0, t2
-	and	t1, t2
-	li	t2, CONFIG_CACHELINE_SIZE
-
-	b	__flush_check
-	nop
-
-__flush_line:
-	cache	Hit_Writeback_Inv_D, 0(t0)
-	cache	Hit_Invalidate_I, 0(t0)
-	add	t0, t2
-
-__flush_check:
-	bne	t0, t1, __flush_line
-	nop
-
-	sync
-
-	la	t0, __reloc_back
-	j	t0
-	nop
-
-__reloc_back:
-	la	t0, _code_end
-	add	t0, 4
-
-	addu	t1, t0, t5
-
-	li	t2, KERNEL_ADDR
-
-__kernel_copy:
-	lw	t3, 0(t0)
-	sw	t3, 0(t2)
-	add	t0, 4
-	blt	t0, t1, __kernel_copy
-	add	t2, 4
-
-	/* flush cache */
-	li	t0, KERNEL_ADDR
-	addu	t1, t0, t5
-
-	add t1, CONFIG_CACHELINE_SIZE - 1
-	li	t2, ~(CONFIG_CACHELINE_SIZE - 1)
-	and	t0, t2
-	and	t1, t2
-	li	t2, CONFIG_CACHELINE_SIZE
-
-	b	__kernel_flush_check
-	nop
-
-__kernel_flush_line:
-	cache	Hit_Writeback_Inv_D, 0(t0)
-	cache	Hit_Invalidate_I, 0(t0)
-	add	t0, t2
-
-__kernel_flush_check:
-	bne	t0, t1, __kernel_flush_line
-	nop
-
-	sync
-
-	li	t0, KERNEL_ADDR
-	jr	t0
-	nop
-
-	.set reorder
-END(startup)
diff --git a/target/linux/ramips/image/relocate/loader.lds b/target/linux/ramips/image/relocate/loader.lds
deleted file mode 100644
index 98ca209303..0000000000
--- a/target/linux/ramips/image/relocate/loader.lds
+++ /dev/null
@@ -1,16 +0,0 @@
-OUTPUT_ARCH(mips)
-SECTIONS {
-	.text : {
-		_code_start = .;
-		*(.text)
-		*(.text.*)
-		*(.rodata)
-		*(.rodata.*)
-		*(.data)
-		*(.data.*)
-	}
-
-	. = ALIGN(32);
-
-	_code_end = .;
-}