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-rw-r--r--arch/cris/boot/compressed/head_v32.S146
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diff --git a/arch/cris/boot/compressed/head_v32.S b/arch/cris/boot/compressed/head_v32.S
deleted file mode 100644
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--- a/arch/cris/boot/compressed/head_v32.S
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-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Code that sets up the DRAM registers, calls the
- * decompressor to unpack the piggybacked kernel, and jumps.
- *
- * Copyright (C) 1999 - 2006, Axis Communications AB
- */
-
-#define ASSEMBLER_MACROS_ONLY
-#include <hwregs/asm/reg_map_asm.h>
-#include <mach/startup.inc>
-
-#define RAM_INIT_MAGIC 0x56902387
-#define COMMAND_LINE_MAGIC 0x87109563
-
- ;; Exported symbols
-
- .globl input_data
-
- .text
-start:
- di
-
- ;; Start clocks for used blocks.
- START_CLOCKS
-
- ;; Initialize the DRAM registers.
- cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized?
- beq dram_init_finished
- nop
-
-#if defined CONFIG_ETRAXFS
-#include "../../arch-v32/mach-fs/dram_init.S"
-#elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../arch-v32/mach-a3/dram_init.S"
-#else
-#error Only ETRAXFS and ARTPEC-3 supported!
-#endif
-
-dram_init_finished:
-
- GIO_INIT
- ;; Setup the stack to a suitably high address.
- ;; We assume 8 MB is the minimum DRAM and put
- ;; the SP at the top for now.
-
- move.d 0x40800000, $sp
-
- ;; Figure out where the compressed piggyback image is.
- ;; It is either in [NOR] flash (we don't want to copy it
- ;; to DRAM before unpacking), or copied to DRAM
- ;; by the [NAND] flash boot loader.
- ;; The piggyback image is at _edata, but relative to where the
- ;; image is actually located in memory, not where it is linked
- ;; (the decompressor is linked at 0x40700000+ and runs there).
- ;; Use (_edata - herami) as offset to the current PC.
-
-hereami:
- lapcq ., $r5 ; get PC
- and.d 0x7fffffff, $r5 ; strip any non-cache bit
- move.d $r5, $r0 ; source address of 'herami'
- add.d _edata, $r5
- sub.d hereami, $r5 ; r5 = flash address of '_edata'
- move.d hereami, $r1 ; destination
-
- ;; Copy text+data to DRAM
-
- move.d _edata, $r2 ; end destination
-1: move.w [$r0+], $r3 ; from herami+ source
- move.w $r3, [$r1+] ; to hereami+ destination (linked address)
- cmp.d $r2, $r1 ; finish when destination == _edata
- bcs 1b
- nop
- move.d input_data, $r0 ; for the decompressor
- move.d $r5, [$r0] ; for the decompressor
-
- ;; Clear the decompressors BSS (between _edata and _end)
-
- moveq 0, $r0
- move.d _edata, $r1
- move.d _end, $r2
-1: move.w $r0, [$r1+]
- cmp.d $r2, $r1
- bcs 1b
- nop
-
- ;; Save command line magic and address.
- move.d _cmd_line_magic, $r0
- move.d $r10, [$r0]
- move.d _cmd_line_addr, $r0
- move.d $r11, [$r0]
-
- ;; Save boot source indicator
- move.d _boot_source, $r0
- move.d $r12, [$r0]
-
- ;; Do the decompression and save compressed size in _inptr
-
- jsr decompress_kernel
- nop
-
- ;; Restore boot source indicator
- move.d _boot_source, $r12
- move.d [$r12], $r12
-
- ;; Restore command line magic and address.
- move.d _cmd_line_magic, $r10
- move.d [$r10], $r10
- move.d _cmd_line_addr, $r11
- move.d [$r11], $r11
-
- ;; Put start address of root partition in r9 so the kernel can use it
- ;; when mounting from flash
- move.d input_data, $r0
- move.d [$r0], $r9 ; flash address of compressed kernel
- move.d inptr, $r0
- add.d [$r0], $r9 ; size of compressed kernel
- cmp.d 0x40000000, $r9 ; image in DRAM ?
- blo enter_kernel ; no, must be [NOR] flash, jump
- nop ; delay slot
- and.d 0x001fffff, $r9 ; assume compressed kernel was < 2M
-
-enter_kernel:
- ;; Enter the decompressed kernel
- move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized
- jump 0x40004000 ; kernel is linked to this address
- nop
-
- .data
-
-input_data:
- .dword 0 ; used by the decompressor
-_cmd_line_magic:
- .dword 0
-_cmd_line_addr:
- .dword 0
-_boot_source:
- .dword 0
-
-#if defined CONFIG_ETRAXFS
-#include "../../arch-v32/mach-fs/hw_settings.S"
-#elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../arch-v32/mach-a3/hw_settings.S"
-#else
-#error Only ETRAXFS and ARTPEC-3 supported!
-#endif