Commit d162300e authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
Browse files

sh: kfr2r09 romImage support V2 



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: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 3c928320

arch/sh/include/mach-kfr2r09/partner-jet-setup.txt

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Original line number Diff line number Diff line 
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

arch/sh/include/mach-kfr2r09/romimage.h

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Original line number Diff line number Diff line 
/* 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"

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