From: Magnus Damm Date: Wed, 29 Jul 2009 15:06:15 +0000 (+0000) Subject: sh: kfr2r09 romImage support V2 X-Git-Tag: firefly_0821_release~12920^2~44^2~39 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d162300e6c963fe255ea7f73b956a7716e24205d;p=firefly-linux-kernel-4.4.55.git 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 Signed-off-by: Paul Mundt --- diff --git a/arch/sh/include/mach-kfr2r09/partner-jet-setup.txt b/arch/sh/include/mach-kfr2r09/partner-jet-setup.txt new file mode 100644 index 000000000000..9c85088728a7 --- /dev/null +++ b/arch/sh/include/mach-kfr2r09/partner-jet-setup.txt @@ -0,0 +1,134 @@ +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 diff --git a/arch/sh/include/mach-kfr2r09/romimage.h b/arch/sh/include/mach-kfr2r09/romimage.h new file mode 100644 index 000000000000..f5aa8e16770c --- /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"