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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ARM: shmobile: Remove obsolete zboot support
The last user of the zboot code was the KZM-A9-GT legacy board code,
which has been removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
authored by
Geert Uytterhoeven
and committed by
Simon Horman
11e38671
b5872880
-197
-4
arch/arm/boot/compressed/Makefile
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arch/arm/boot/compressed/Makefile
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arch/arm/boot/compressed/head-shmobile.S
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arch/arm/boot/compressed/head-shmobile.S
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/*
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* The head-file for SH-Mobile ARM platforms
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*
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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* Simon Horman <horms@verge.net.au>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef CONFIG_ZBOOT_ROM
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.section ".start", "ax"
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/* load board-specific initialization code */
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#include <mach/zboot.h>
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adr r0, dtb_info
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ldmia r0, {r1, r3, r4, r5, r7}
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sub r0, r0, r1 @ calculate the delta offset
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add r5, r5, r0 @ _edata
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ldr lr, [r5, #0] @ check if valid DTB is present
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cmp lr, r3
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bne 0f
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-
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add r9, r7, #31 @ rounded up to a multiple
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bic r9, r9, #31 @ ... of 32 bytes
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add r6, r9, r5 @ copy from _edata
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add r9, r9, r4 @ to MEMORY_START
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1: ldmdb r6!, {r0 - r3, r10 - r12, lr}
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cmp r6, r5
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stmdb r9!, {r0 - r3, r10 - r12, lr}
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bhi 1b
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/* Success: Zero board ID, pointer to start of memory for atag/dtb */
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mov r7, #0
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mov r8, r4
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b 2f
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.align 2
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dtb_info:
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.word dtb_info
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#ifndef __ARMEB__
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.word 0xedfe0dd0 @ sig is 0xd00dfeed big endian
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#else
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.word 0xd00dfeed
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#endif
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.word MEMORY_START
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.word _edata
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.word 0x4000 @ maximum DTB size
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0:
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/* Failure: Zero board ID, NULL atag/dtb */
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mov r7, #0
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mov r8, #0 @ pass null pointer as atag
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2 :
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#endif /* CONFIG_ZBOOT_ROM */
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arch/arm/mach-shmobile/include/mach/zboot.h
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arch/arm/mach-shmobile/include/mach/zboot.h
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#ifndef ZBOOT_H
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#define ZBOOT_H
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#include <mach/zboot_macros.h>
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/**************************************************
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*
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* board specific settings
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*
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**************************************************/
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#error "unsupported board."
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#endif /* ZBOOT_H */
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arch/arm/mach-shmobile/include/mach/zboot_macros.h
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arch/arm/mach-shmobile/include/mach/zboot_macros.h
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#ifndef __ZBOOT_MACRO_H
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#define __ZBOOT_MACRO_H
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/* The LIST command is used to include comments in the script */
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.macro LIST comment
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.endm
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/* The ED command is used to write a 32-bit word */
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.macro ED, addr, data
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LDR r0, 1f
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LDR r1, 2f
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STR r1, [r0]
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B 3f
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1 : .long \addr
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2 : .long \data
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3 :
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.endm
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/* The EW command is used to write a 16-bit word */
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.macro EW, addr, data
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LDR r0, 1f
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LDR r1, 2f
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STRH r1, [r0]
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B 3f
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1 : .long \addr
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2 : .long \data
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3 :
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.endm
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/* The EB command is used to write an 8-bit word */
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.macro EB, addr, data
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LDR r0, 1f
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LDR r1, 2f
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STRB r1, [r0]
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B 3f
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1 : .long \addr
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2 : .long \data
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3 :
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.endm
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/* The WAIT command is used to delay the execution */
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.macro WAIT, time, reg
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LDR r1, 1f
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LDR r0, 2f
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STR r0, [r1]
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10 :
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LDR r0, [r1]
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CMP r0, #0x00000000
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BNE 10b
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NOP
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B 3f
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1 : .long \reg
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2 : .long \time * 100
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3 :
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.endm
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/* The DD command is used to read a 32-bit word */
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.macro DD, start, end
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LDR r1, 1f
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B 2f
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1 : .long \start
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2 :
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.endm
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/* loop until a given value has been read (with mask) */
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.macro WAIT_MASK, addr, data, cmp
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LDR r0, 2f
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LDR r1, 3f
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LDR r2, 4f
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1:
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LDR r3, [r0, #0]
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AND r3, r1, r3
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CMP r2, r3
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BNE 1b
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B 5f
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2: .long \addr
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3: .long \data
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4: .long \cmp
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5:
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.endm
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/* read 32-bit value from addr, "or" an immediate and write back */
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.macro ED_OR, addr, data
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LDR r4, 1f
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LDR r5, 2f
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LDR r6, [r4]
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ORR r5, r6, r5
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STR r5, [r4]
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B 3f
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1: .long \addr
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2: .long \data
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3:
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.endm
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/* read 32-bit value from addr, "and" an immediate and write back */
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.macro ED_AND, addr, data
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LDR r4, 1f
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LDR r5, 2f
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LDR r6, [r4]
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AND r5, r6, r5
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STR r5, [r4]
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B 3f
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1: .long \addr
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2: .long \data
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3:
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.endm
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#endif /* __ZBOOT_MACRO_H */