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ARM: 6514/1: mach-shmobile: Add zboot support for SuperH Mobile ARM 

When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

This is the board-specific portion of this patch-set.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Kuninori Morimoto 2010-12-01 07:40:16 +01:00 committed by Russell King
parent 9a4af112bd
commit 3d09fbcd26
4 changed files with 161 additions and 0 deletions
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1
arch/arm/mach-shmobile/board-ap4evb.c
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@ -61,6 +61,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/setup.h>
/*
* Address Interface BusWidth note

87
arch/arm/mach-shmobile/include/mach/head-ap4evb.txt Normal file
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@ -0,0 +1,87 @@
LIST "partner-jet-setup.txt"
LIST "(C) Copyright 2010 Renesas Solutions Corp"
LIST "Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"
LIST "RWT Setting"
EW 0xE6020004, 0xA500
EW 0xE6030004, 0xA500
DD 0x01001000, 0x01001000
LIST "GPIO Setting"
EB 0xE6051013, 0xA2
LIST "CPG"
ED 0xE6150080, 0x00000180
ED 0xE61500C0, 0x00000002
WAIT 1, 0xFE40009C
LIST "FRQCR"
ED 0xE6150000, 0x2D1305C3
ED 0xE61500E0, 0x9E40358E
ED 0xE6150004, 0x80331050
WAIT 1, 0xFE40009C
ED 0xE61500E4, 0x00002000
WAIT 1, 0xFE40009C
LIST "PLL"
ED 0xE6150028, 0x00004000
WAIT 1, 0xFE40009C
ED 0xE615002C, 0x93000040
WAIT 1, 0xFE40009C
LIST "BSC"
ED 0xFEC10000, 0x00E0001B
LIST "SBSC1"
ED 0xFE400354, 0x01AD8000
ED 0xFE400354, 0x01AD8001
WAIT 5, 0xFE40009C
ED 0xFE400008, 0xBCC90151
ED 0xFE400040, 0x41774113
ED 0xFE400044, 0x2712E229
ED 0xFE400048, 0x20C18505
ED 0xFE40004C, 0x00110209
ED 0xFE400010, 0x00000087
WAIT 10, 0xFE40009C
ED 0xFE400084, 0x0000003F
EB 0xFE500000, 0x00
WAIT 5, 0xFE40009C
ED 0xFE400084, 0x0000FF0A
EB 0xFE500000, 0x00
WAIT 1, 0xFE40009C
ED 0xFE400084, 0x00002201
EB 0xFE500000, 0x00
ED 0xFE400084, 0x00000302
EB 0xFE500000, 0x00
EB 0xFE5C0000, 0x00
ED 0xFE400008, 0xBCC90159
ED 0xFE40008C, 0x88800004
ED 0xFE400094, 0x00000004
ED 0xFE400028, 0xA55A0032
ED 0xFE40002C, 0xA55A000C
ED 0xFE400020, 0xA55A2048
ED 0xFE400008, 0xBCC90959
LIST "Change CPGA setting"
ED 0xE61500E0, 0x9E40352E
ED 0xE6150004, 0x80331050
WAIT 1, 0xFE40009C
ED 0xE6150354, 0x00000002

8
arch/arm/mach-shmobile/include/mach/zboot.h
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@ -1,12 +1,20 @@
#ifndef ZBOOT_H
#define ZBOOT_H
#include <asm/mach-types.h>
#include <mach/zboot_macros.h>
/**************************************************
*
* board specific settings
*
**************************************************/
#ifdef CONFIG_MACH_AP4EVB
#define MACH_TYPE MACH_TYPE_AP4EVB
#include "mach/head-ap4evb.txt"
#else
#error "unsupported board."
#endif
#endif /* ZBOOT_H */

65
arch/arm/mach-shmobile/include/mach/zboot_macros.h Normal file
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@ -0,0 +1,65 @@
#ifndef __ZBOOT_MACRO_H
#define __ZBOOT_MACRO_H
/* The LIST command is used to include comments in the script */
.macro LIST comment
.endm
/* The ED command is used to write a 32-bit word */
.macro ED, addr, data
LDR r0, 1f
LDR r1, 2f
STR r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The EW command is used to write a 16-bit word */
.macro EW, addr, data
LDR r0, 1f
LDR r1, 2f
STRH r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The EB command is used to write an 8-bit word */
.macro EB, addr, data
LDR r0, 1f
LDR r1, 2f
STRB r1, [r0]
B 3f
1 : .long \addr
2 : .long \data
3 :
.endm
/* The WAIT command is used to delay the execution */
.macro WAIT, time, reg
LDR r1, 1f
LDR r0, 2f
STR r0, [r1]
10 :
LDR r0, [r1]
CMP r0, #0x00000000
BNE 10b
NOP
B 3f
1 : .long \reg
2 : .long \time * 100
3 :
.endm
/* The DD command is used to read a 32-bit word */
.macro DD, start, end
LDR r1, 1f
B 2f
1 : .long \start
2 :
.endm
#endif /* __ZBOOT_MACRO_H */