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sh: kfr2r09 romImage support V2

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This patch is romImage support for the kfr2r09 board V2.

The partner-jet-setup.txt file is converted into assembly code
which becomes the first code to execute from the reset vector.

The file partner-jet-setup.txt can also be used to setup
the hardware using a JTAG debugger so booting from RAM can
be done without burning the code to flash.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-07-29 15:06:15 +00:00 committed by Paul Mundt
parent 3c928320b2
commit d162300e6c
2 changed files with 209 additions and 0 deletions
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134
arch/sh/include/mach-kfr2r09/partner-jet-setup.txt Normal file
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LIST "partner-jet-setup.txt - 20090729 Magnus Damm"
LIST "set up enough of the kfr2r09 hardware to boot the kernel"
LIST "zImage (RAM boot)"
LIST "This script can be used to boot the kernel from RAM via JTAG:"
LIST "> < partner-jet-setup.txt"
LIST "> RD zImage, 0xa8800000"
LIST "> G=0xa8800000"
LIST "romImage (Flash boot)"
LIST "Use the following command to burn the zImage to flash via JTAG:"
LIST "> RD romImage, 0"
LIST "--------------------------------"
LIST "disable watchdog"
EW 0xa4520004, 0xa507
LIST "select mode for cs5 + cs6"
ED 0xff800020, 0xa5a50001
ED 0xfec10000, 0x0000001b
LIST "setup clocks"
ED 0xa4150004, 0x00000050
ED 0xa4150000, 0x91053508
WAIT 1
ED 0xa4150024, 0x00005000
LIST "setup pins"
EB 0xa4050120, 0x00
EB 0xa4050122, 0x00
EB 0xa4050124, 0x00
EB 0xa4050126, 0x00
EB 0xa4050128, 0xA0
EB 0xa405012A, 0x10
EB 0xa405012C, 0x00
EB 0xa405012E, 0x00
EB 0xa4050130, 0x00
EB 0xa4050132, 0x00
EB 0xa4050134, 0x01
EB 0xa4050136, 0x40
EB 0xa4050138, 0x00
EB 0xa405013A, 0x00
EB 0xa405013C, 0x00
EB 0xa405013E, 0x20
EB 0xa4050160, 0x00
EB 0xa4050162, 0x40
EB 0xa4050164, 0x03
EB 0xa4050166, 0x00
EB 0xa4050168, 0x00
EB 0xa405016A, 0x00
EB 0xa405016C, 0x00
EW 0xa405014E, 0x5660
EW 0xa4050150, 0x0145
EW 0xa4050152, 0x1550
EW 0xa4050154, 0x0200
EW 0xa4050156, 0x0040
EW 0xa4050158, 0x0000
EW 0xa405015a, 0x0000
EW 0xa405015c, 0x0000
EW 0xa405015e, 0x0000
EW 0xa4050180, 0x0000
EW 0xa4050182, 0x8002
EW 0xa4050184, 0x0000
EW 0xa405018a, 0x9991
EW 0xa405018c, 0x8011
EW 0xa405018e, 0x9550
EW 0xa4050100, 0x0000
EW 0xa4050102, 0x5540
EW 0xa4050104, 0x0000
EW 0xa4050106, 0x0000
EW 0xa4050108, 0x4550
EW 0xa405010a, 0x0130
EW 0xa405010c, 0x0555
EW 0xa405010e, 0x0000
EW 0xa4050110, 0x0000
EW 0xa4050112, 0xAAA8
EW 0xa4050114, 0x8305
EW 0xa4050116, 0x10F0
EW 0xa4050118, 0x0F50
EW 0xa405011a, 0x0000
EW 0xa405011c, 0x0000
EW 0xa405011e, 0x0555
EW 0xa4050140, 0x0000
EW 0xa4050142, 0x5141
EW 0xa4050144, 0x5005
EW 0xa4050146, 0xAAA9
EW 0xa4050148, 0xFAA9
EW 0xa405014a, 0x3000
EW 0xa405014c, 0x0000
LIST "setup sdram"
ED 0xFD000108, 0x40000301
ED 0xFD000020, 0x011B0002
ED 0xFD000030, 0x03060E02
ED 0xFD000034, 0x01020102
ED 0xFD000038, 0x01090406
ED 0xFD000008, 0x00000004
ED 0xFD000040, 0x00000001
ED 0xFD000040, 0x00000000
ED 0xFD000018, 0x00000001
WAIT 1
ED 0xFD000014, 0x00000002
ED 0xFD000060, 0x00000032
ED 0xFD000060, 0x00020000
ED 0xFD000014, 0x00000004
ED 0xFD000014, 0x00000004
ED 0xFD000010, 0x00000001
ED 0xFD000044, 0x000004AF
ED 0xFD000048, 0x20CF0037
LIST "read 16 bytes from sdram"
DD 0xa8000000, 0xa8000000, 1
DD 0xa8000004, 0xa8000004, 1
DD 0xa8000008, 0xa8000008, 1
DD 0xa800000c, 0xa800000c, 1
ED 0xFD000014, 0x00000002
ED 0xFD000014, 0x00000004
ED 0xFD000108, 0x40000300
ED 0xFD000040, 0x00010000
LIST "write to internal ram"
ED 0xfd8007fc, 0
LIST "setup cache"
ED 0xff00001c, 0x0000090b

75
arch/sh/include/mach-kfr2r09/romimage.h Normal file
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/* kfr2r09 board specific boot code:
* converts the "partner-jet-script.txt" script into assembly
* the assembly code is the first code to be executed in the romImage
*/
/* 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
mov.l 1f ,r1
mov.l 2f ,r0
mov.l r0, @r1
bra 3f
nop
.align 2
1: .long \addr
2: .long \data
3:
.endm
/* The EW command is used to write a 16-bit word */
.macro EW, addr, data
mov.l 1f ,r1
mov.l 2f ,r0
mov.w r0, @r1
bra 3f
nop
.align 2
1: .long \addr
2: .long \data
3:
.endm
/* The EB command is used to write an 8-bit word */
.macro EB, addr, data
mov.l 1f ,r1
mov.l 2f ,r0
mov.b r0, @r1
bra 3f
nop
.align 2
1: .long \addr
2: .long \data
3:
.endm
/* The WAIT command is used to delay the execution */
.macro WAIT, time
mov.l 2f ,r3
1:
nop
tst r3, r3
bf/s 1b
dt r3
bra 3f
nop
.align 2
2: .long \time * 100
3:
.endm
/* The DD command is used to read a 32-bit word */
.macro DD, addr, addr2, nr
mov.l 1f ,r1
mov.l @r1, r0
bra 2f
nop
.align 2
1: .long \addr
2:
.endm
#include "partner-jet-setup.txt"