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| author | Magnus Damm <damm@igel.co.jp> | 2009-07-29 15:06:15 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-07-30 00:24:07 +0900 |
| commit | d162300e6c963fe255ea7f73b956a7716e24205d (patch) | |
| tree | c782b69e96370e9d9cc170fb2ffc16db7385e36b /arch/sh/include/mach-kfr2r09/romimage.h | |
| parent | 3c928320b2254cb6c8d8a7919a1fcf94ca7cae66 (diff) | |
| download | op-kernel-dev-d162300e6c963fe255ea7f73b956a7716e24205d.zip op-kernel-dev-d162300e6c963fe255ea7f73b956a7716e24205d.tar.gz | |
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: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/mach-kfr2r09/romimage.h')
| -rw-r--r-- | arch/sh/include/mach-kfr2r09/romimage.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/sh/include/mach-kfr2r09/romimage.h b/arch/sh/include/mach-kfr2r09/romimage.h new file mode 100644 index 0000000..f5aa8e1 --- /dev/null +++ b/arch/sh/include/mach-kfr2r09/romimage.h @@ -0,0 +1,75 @@ +/* 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" |
