* [ECOS] PowerPC Redboot porting problems
@ 2007-06-20 21:46 Tales Toledo
2007-06-21 3:48 ` Gary Thomas
0 siblings, 1 reply; 5+ messages in thread
From: Tales Toledo @ 2007-06-20 21:46 UTC (permalink / raw)
To: ecos-discuss
Hi,
I'm facing some problems trying to port redboot to MPC885...
I have tried to follow the steps suggested at porting guide. I'm using only
RAM as a first step but unfortunately I can get success. I'm using
Viper files as reference.
I'm using gdb with mpcbdm and get always the same exception when
running it from RAM.
------------------------------------------------------------
GNU gdb 5.0
Copyright 2000 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=powerpc-linux".
MPCBDM version 1.2.2 / 2001/06/14
got access rights for printer port 0 addr 0x378..0x37A
disabled power at port 0
Power: turned on powering from port 0
adapter version 2 initialized
Waiting freeze:
Target freeze:
*** init
Target cpu PVR=0x00500000 PARTNUM=0x09 MASKNUM=0x00 REV_NUM=0x0000
warning: unknown CPU. Using default register description
BDM initialized
0x100 in ?? ()
(gdb) mpcbdm mem load "/home/toledo/redboot.bin" 0
len = 0x000250c0, total file length
(gdb) j *0x100
Continuing at 0x100.
*** run
*** Resume
*** wait freeze
Waiting freeze:
Target freeze:
Program received signal SIGINT, Interrupt.
CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
SPR 2:Condition Register, UM140
CR = 0x2042488d =
(CR0=0x2|CR1=0x0|CR2=0x4|CR3=0x2|CR4=0x4|CR5=0x8|CR6=0x8|CR7=0xd)
ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
SPR 148:Interrupt Cause Register, UM994
ICR = 0x00004000 = (SEI)
0x42004 in ?? ()
(gdb)
------------------------------------------------------------
Here are the RAM memory map files used.
------------------------------------------------------------
// eCos memory layout - Thu May 30 10:27:39 2002
// This is a generated file - do not edit
#ifndef __ASSEMBLER__
#include <cyg/infra/cyg_type.h>
#include <stddef.h>
#endif
#define CYGMEM_REGION_ram (0)
#define CYGMEM_REGION_ram_SIZE (0x2000000)
#define CYGMEM_REGION_ram_ATTR (CYGMEM_REGION_ATTR_R | CYGMEM_REGION_ATTR_W)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__reserved_vectors) [];
#endif
#define CYGMEM_SECTION_reserved_vectors (CYG_LABEL_NAME (__reserved_vectors))
#define CYGMEM_SECTION_reserved_vectors_SIZE (0x3000)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__reserved_vsr_table) [];
#endif
#define CYGMEM_SECTION_reserved_vsr_table (CYG_LABEL_NAME
(__reserved_vsr_table))
#define CYGMEM_SECTION_reserved_vsr_table_SIZE (0x200)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__reserved_virtual_table) [];
#endif
#define CYGMEM_SECTION_reserved_virtual_table (CYG_LABEL_NAME
(__reserved_virtual_table))
#define CYGMEM_SECTION_reserved_virtual_table_SIZE (0x100)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__reserved_for_rom) [];
#endif
#define CYGMEM_SECTION_reserved_for_rom (CYG_LABEL_NAME (__reserved_for_rom))
#define CYGMEM_SECTION_reserved_for_rom_SIZE (0x3cd00)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__heap1) [];
#endif
#define CYGMEM_SECTION_heap1 (CYG_LABEL_NAME (__heap1))
#define CYGMEM_SECTION_heap1_SIZE (CYGMEM_REGION_ram_SIZE - (size_t)
CYG_LABEL_NAME (__heap1))
------------------------------------------------------------
------------------------------------------------------------
// eCos memory layout - Thu May 30 10:27:39 2002
// This is a generated file - do not edit
#include <cyg/infra/cyg_type.inc>
MEMORY
{
ram : ORIGIN = 0, LENGTH = 0x2000000
}
SECTIONS
{
SECTIONS_BEGIN
CYG_LABEL_DEFN(__reserved_vectors) = 0; . =
CYG_LABEL_DEFN(__reserved_vectors) + 0x3000;
CYG_LABEL_DEFN(__reserved_vsr_table) = ALIGN (0x10); . =
CYG_LABEL_DEFN(__reserved_vsr_table) + 0x200;
CYG_LABEL_DEFN(__reserved_virtual_table) = ALIGN (0x10); . =
CYG_LABEL_DEFN(__reserved_virtual_table) + 0x100;
CYG_LABEL_DEFN(__reserved_for_rom) = ALIGN (0x10); . =
CYG_LABEL_DEFN(__reserved_for_rom) + 0x3cd00;
SECTION_vectors (ram, ALIGN (0x10), LMA_EQ_VMA)
SECTION_text (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_fini (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_rodata1 (ram, ALIGN (0x8), LMA_EQ_VMA)
SECTION_rodata (ram, ALIGN (0x8), LMA_EQ_VMA)
SECTION_fixup (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_gcc_except_table (ram, ALIGN (0x1), LMA_EQ_VMA)
SECTION_data (ram, ALIGN (0x8), LMA_EQ_VMA)
SECTION_sbss (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_bss (ram, ALIGN (0x10), LMA_EQ_VMA)
CYG_LABEL_DEFN(__heap1) = ALIGN (0x8);
SECTIONS_END
}
------------------------------------------------------------
Here is also a disassembled excerpt redboot.sym file from
(powerpc-eabi-objdump -D powerpc:MPC8XX redboot.elf > redboot.sym)
------------------------------------------------------------
Disassembly of section .text:
00042000 <_start>:
42000: 3c 60 00 00 lis r3,0
42004: 60 63 00 07 ori r3,r3,7
42008: 7c 7e 23 a6 mtictrl r3
4200c: 38 60 00 00 li r3,0
42010: 7c 75 23 a6 mtder r3
42014: 3c 60 04 00 lis r3,1024
42018: 60 63 00 00 ori r3,r3,0
4201c: 7c 00 04 ac sync
42020: 7c 78 8b a6 mtspr 568,r3
42024: 3c 60 04 00 lis r3,1024
42028: 60 63 00 00 ori r3,r3,0
4202c: 4c 00 01 2c isync
42030: 7c 70 8b a6 mtspr 560,r3
42034: 4c 00 01 2c isync
42038: 7c 70 c2 a6 mfmi_ctr r3
4203c: 64 63 20 00 oris r3,r3,8192
42040: 7c 70 c3 a6 mtspr 784,r3
42044: 7c 78 c2 a6 mfmd_ctr r3
42048: 64 63 20 00 oris r3,r3,8192
4204c: 7c 78 c3 a6 mtspr 792,r3
42050: 3c 60 00 00 lis r3,0
42054: 60 63 10 02 ori r3,r3,4098
42058: 7c 00 04 ac sync
4205c: 7c 60 01 24 mtmsr r3
42060: 7c 00 04 ac sync
42064: 3c 40 00 06 lis r2,6
42068: 60 42 d0 40 ori r2,r2,53312
4206c: 7c 63 1a 78 xor r3,r3,r3
42070: 7c 7c 43 a6 mttbl r3
42074: 7c 84 22 78 xor r4,r4,r4
42078: 7c 9d 43 a6 mttbu r4
4207c: 48 00 95 f1 bl 4b66c <hal_hardware_init>
00042080 <_hal_hardware_init_done>:
42080: 3c 60 00 03 lis r3,3
42084: 60 63 ff fc ori r3,r3,65532
42088: 3c 80 ff ff lis r4,-1
4208c: 60 84 ff fc ori r4,r4,65532
42090: 3c a0 00 04 lis r5,4
42094: 60 a5 1f 30 ori r5,r5,7984
42098: 84 03 00 04 lwzu r0,4(r3)
4209c: 94 04 00 04 stwu r0,4(r4)
420a0: 7c 03 28 40 cmplw r3,r5
420a4: 40 82 ff f4 bne+ 42098 <_hal_hardware_init_done+0x18>
420a8: 3c 20 00 06 lis r1,6
420ac: 60 21 62 40 ori r1,r1,25152
420b0: 7c 30 43 a6 mtsprg 0,r1
420b4: 3c 60 00 04 lis r3,4
420b8: 60 63 00 00 ori r3,r3,0
420bc: 3c 80 00 00 lis r4,0
420c0: 60 84 00 00 ori r4,r4,0
420c4: 3c a0 00 04 lis r5,4
420c8: 60 a5 1f 34 ori r5,r5,7988
420cc: 7c 03 28 40 cmplw r3,r5
420d0: 41 82 00 20 beq- 420f0 <_hal_hardware_init_done+0x70>
420d4: 38 63 ff fc addi r3,r3,-4
420d8: 38 84 ff fc addi r4,r4,-4
420dc: 38 a5 ff fc addi r5,r5,-4
420e0: 84 03 00 04 lwzu r0,4(r3)
420e4: 94 04 00 04 stwu r0,4(r4)
420e8: 7c 03 28 40 cmplw r3,r5
420ec: 41 80 ff f4 blt+ 420e0 <_hal_hardware_init_done+0x60>
420f0: 3c 60 00 04 lis r3,4
420f4: 60 63 21 d4 ori r3,r3,8660
420f8: 3c 80 00 00 lis r4,0
420fc: 60 84 30 00 ori r4,r4,12288
42100: 38 84 ff fc addi r4,r4,-4
42104: 38 a0 00 20 li r5,32
42108: 94 64 00 04 stwu r3,4(r4)
4210c: 38 a5 ff ff addi r5,r5,-1
42110: 2c 05 00 00 cmpwi r5,0
42114: 40 82 ff f4 bne+ 42108 <_hal_hardware_init_done+0x88>
42118: 3c 60 00 04 lis r3,4
4211c: 60 63 22 dc ori r3,r3,8924
42120: 3c 80 00 00 lis r4,0
42124: 60 84 30 00 ori r4,r4,12288
42128: 90 64 00 14 stw r3,20(r4)
4212c: 90 64 00 24 stw r3,36(r4)
42130: 3c 60 00 06 lis r3,6
42134: 60 63 52 40 ori r3,r3,21056
42138: 3c 80 00 07 lis r4,7
4213c: 60 84 bb f0 ori r4,r4,48112
42140: 38 00 00 00 li r0,0
42144: 7c 03 20 40 cmplw r3,r4
42148: 41 82 00 14 beq- 4215c <_hal_hardware_init_done+0xdc>
4214c: 90 03 00 00 stw r0,0(r3)
42150: 38 63 00 04 addi r3,r3,4
42154: 7c 03 20 40 cmplw r3,r4
42158: 41 80 ff f4 blt+ 4214c <_hal_hardware_init_done+0xcc>
4215c: 3c 60 00 06 lis r3,6
42160: 60 63 50 c0 ori r3,r3,20672
42164: 3c 80 00 06 lis r4,6
42168: 60 84 52 38 ori r4,r4,21048
4216c: 7c 03 20 40 cmplw r3,r4
42170: 41 82 00 14 beq- 42184 <_hal_hardware_init_done+0x104>
42174: 90 03 00 00 stw r0,0(r3)
42178: 38 63 00 04 addi r3,r3,4
4217c: 7c 03 20 40 cmplw r3,r4
42180: 41 80 ff f4 blt+ 42174 <_hal_hardware_init_done+0xf4>
42184: 38 21 ff f4 addi r1,r1,-12
42188: 38 00 00 00 li r0,0
4218c: 90 01 00 00 stw r0,0(r1)
42190: 90 01 00 08 stw r0,8(r1)
42194: 94 21 ff c8 stwu r1,-56(r1)
42198: 48 00 93 15 bl 4b4ac <hal_variant_init>
4219c: 48 00 94 91 bl 4b62c <hal_platform_init>
421a0: 48 00 90 09 bl 4b1a8 <hal_MMU_init>
421a4: 3c 60 00 00 lis r3,0
421a8: 60 63 10 32 ori r3,r3,4146
421ac: 7c 00 04 ac sync
421b0: 7c 60 01 24 mtmsr r3
421b4: 7c 00 04 ac sync
421b8: 48 00 90 79 bl 4b230 <hal_enable_caches>
421bc: 48 00 90 b1 bl 4b26c <hal_IRQ_init>
421c0: 48 00 8f 21 bl 4b0e0 <cyg_hal_invoke_constructors>
421c4: 48 00 af e5 bl 4d1a8 <initialize_stub>
421c8: 48 00 c7 79 bl 4e940 <hal_ctrlc_isr_init>
421cc: 48 00 e0 65 bl 50230 <cyg_start>
421d0: 48 00 00 00 b 4
------------------------------------------------------------
- Hide quoted text -
If necessary I can also attach 885board.S for reference.
I appreciate any help.
Thx,
TT
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Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [ECOS] PowerPC Redboot porting problems
2007-06-20 21:46 [ECOS] PowerPC Redboot porting problems Tales Toledo
@ 2007-06-21 3:48 ` Gary Thomas
2007-06-21 11:44 ` Tales Toledo
0 siblings, 1 reply; 5+ messages in thread
From: Gary Thomas @ 2007-06-21 3:48 UTC (permalink / raw)
To: Tales Toledo; +Cc: ecos-discuss
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Tales Toledo wrote:
> Hi,
>
> I'm facing some problems trying to port redboot to MPC885...
> I have tried to follow the steps suggested at porting guide. I'm using only
> RAM as a first step but unfortunately I can get success. I'm using
> Viper files as reference.
>
> I'm using gdb with mpcbdm and get always the same exception when
> running it from RAM.
Look carefully - this is failing on the first instruction you downloaded,
so it most certainly has nothing to do with porting eCos.
* Have you verified the code that was downloaded correctly?
* Have you successfully executed any code on this platform using these tools?
- --
- ------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
- ------------------------------------------------------------
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
iD8DBQFGeY4YmaKbSsQGV8ARAirMAJ9xEKtFrDXYOh5jB59disiPExgbUgCgjT0j
xmJBNpW1xfQruVljpMs/JrY=
=/UuG
-----END PGP SIGNATURE-----
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [ECOS] PowerPC Redboot porting problems
2007-06-21 3:48 ` Gary Thomas
@ 2007-06-21 11:44 ` Tales Toledo
2007-06-24 9:15 ` Tales Toledo
0 siblings, 1 reply; 5+ messages in thread
From: Tales Toledo @ 2007-06-21 11:44 UTC (permalink / raw)
To: Gary Thomas; +Cc: ecos-discuss
Hi,
I see some progress now.
I was downloading .bin file to 0x0 (the same procedure I was using
before when I tried to download code to RAM an programming to flash).
I decide to move from .bin to .elf and voilá...
Now I have a new message
--------------------------------------------------------------
Program received signal SIGINT, Interrupt.
CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
SPR 2:Condition Register, UM140
CR = 0x2042488d =
(CR0=0x2|CR1=0x0|CR2=0x4|CR3=0x2|CR4=0x4|CR5=0x8|CR6=0x8|CR7=0xd)
ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
SPR 148:Interrupt Cause Register, UM994
ICR = 0x00004000 = (SEI)
0x4b6c0 in hal_hardware_init ()
---------------------------------------------------------------
looking at disassembled file
---------------------------------------------------------------
4b6b8: 90 64 01 74 stw r3,372(r4)
4b6bc: 3c 60 40 00 lis r3,16384
4b6c0: 60 63 08 01 ori r3,r3,2049
4b6c4: 3c a0 ff 80 lis r5,-128
4b6c8: 60 a5 07 74 ori r5,r5,1908
4b6cc: 90 64 01 00 stw r3,256(r4)
4b6d0: 90 a4 01 04 stw r5,260(r4)
4b6d4: 3c 60 00 00 lis r3,0
4b6d8: 60 63 00 81 ori r3,r3,129
4b6dc: 3c a0 ff 80 lis r5,-128
4b6e0: 60 a5 0e 00 ori r5,r5,3584
4b6e4: 90 64 01 08 stw r3,264(r4)
4b6e8: 90 a4 01 0c stw r5,268(r4)
---------------------------------------------------------------
seems that the exception occurs when I'm programming BR0/OR0
-------------------------------------------
/*
* Base Register initialization.
*/
/* BOOT ROM */
lwi r3,0x40000801 # 16-bit, GPCM
lwi r5,0xFF800774 # 7 wait states, up to 8MB
stw r3,BR0(r4)
stw r5,OR0(r4)
/* ONBOARD SDRAM */
lwi r3,0x00000081 # 32-bit, UPMA
lwi r5,0xFF800E00
stw r3,BR1(r4)
stw r5,OR1(r4)
-----------------------------------------------
I didn't see the problem yet. Any idea.
Thanks,
TT.
On 6/20/07, Gary Thomas <gary@mlbassoc.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Tales Toledo wrote:
> > Hi,
> >
> > I'm facing some problems trying to port redboot to MPC885...
> > I have tried to follow the steps suggested at porting guide. I'm using only
> > RAM as a first step but unfortunately I can get success. I'm using
> > Viper files as reference.
> >
> > I'm using gdb with mpcbdm and get always the same exception when
> > running it from RAM.
>
> Look carefully - this is failing on the first instruction you downloaded,
> so it most certainly has nothing to do with porting eCos.
> * Have you verified the code that was downloaded correctly?
> * Have you successfully executed any code on this platform using these tools?
>
> - --
> - ------------------------------------------------------------
> Gary Thomas | Consulting for the
> MLB Associates | Embedded world
> - ------------------------------------------------------------
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.7 (GNU/Linux)
> Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
>
> iD8DBQFGeY4YmaKbSsQGV8ARAirMAJ9xEKtFrDXYOh5jB59disiPExgbUgCgjT0j
> xmJBNpW1xfQruVljpMs/JrY=
> =/UuG
> -----END PGP SIGNATURE-----
>
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [ECOS] PowerPC Redboot porting problems
2007-06-21 11:44 ` Tales Toledo
@ 2007-06-24 9:15 ` Tales Toledo
2007-06-27 21:21 ` Tales Toledo
0 siblings, 1 reply; 5+ messages in thread
From: Tales Toledo @ 2007-06-24 9:15 UTC (permalink / raw)
To: Gary Thomas; +Cc: ecos-discuss
Hi,
Regarding your questions about the code it seems to be download
correctly since hexdump from bin file is the same as
powerpc-eabi-objdump from elf except for the 0x40000 offset present in
elf file (no problem since this bin should be generated just for ROM).
Regarding the tools, they are used to download other images/projects
(u-boot) and program FLASH.
For this project I would like to test and use redboot and that is the
reason why I am boring you an all people with this.
Right now I'm using gdb 5.0 with mpcbdm 1.2.2 (Unfortunately I don't
have a BDI2000 ;-(.) to load redboot.elf to SDRAM.
$ powerpc-linux-gdb -x board.gdbinit redboot.elf
(gdb) load
Loading section .vectors, size 0x2000 lma 0x40000
Loading section .text, size 0x1c568 lma 0x42000
Loading section .rodata, size 0x59b4 lma 0x5e568
Loading section .data, size 0x11a0 lma 0x63f20
Start address 0x40100 , load size 151740
Transfer rate: 134880 bits/sec, 510 bytes/write.
To run it I a make
(gdb) j *0x40100
but as I said before I always got a SIGINT interrupt
Program received signal SIGINT, Interrupt.
CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
SPR 2:Condition Register, UM140
CR = 0x2002608d =
(CR0=0x2|CR1=0x0|CR2=0x0|CR3=0x2|CR4=0x6|CR5=0x0|CR6=0x8|CR7=0xd)
ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
SPR 148:Interrupt Cause Register, UM994
ICR = 0x00004000 = (SEI)
0x4b6c0 in ?? ()
(gdb)
looking at objdump and .S files is in the right moment when I tried to
program BR0/CS0
------------------------------ objdump file
4b6b4: 90 64 01 70 stw r3,368(r4)
4b6b8: 90 64 01 74 stw r3,372(r4)
4b6bc: 3c 60 40 00 lis r3,16384
4b6c0: 60 63 08 01 ori r3,r3,2049
4b6c4: 3c a0 ff 80 lis r5,-128
4b6c8: 60 a5 07 74 ori r5,r5,1908
4b6cc: 90 64 01 00 stw r3,256(r4)
4b6d0: 90 a4 01 04 stw r5,260(r4)
4b6d4: 3c 60 00 00 lis r3,0
-------------------------------
------------------------------- .S file
lwi r3,0x00802114|(MAMR_PTA<<24)
stw r3,MAMR(r4)
stw r3,MBMR(r4)
/*
* Base Register initialization.
*/
/* BOOT ROM */
lwi r3,0x40000801 # 16-bit, GPCM
lwi r5,0xFF800774 # 7 wait states, up to 8MB
stw r3,BR0(r4)
stw r5,OR0(r4)
/* ONBOARD SDRAM */
lwi r3,0x00000081 # 32-bit, UPMA
lwi r5,0xFF800E00
stw r3,BR1(r4)
stw r5,OR1(r4)
-------------------------------
Why does it happen? Do you have an idea?
Thx again,
TT.
On 6/20/07, Tales Toledo <toledo.tales@gmail.com> wrote:
> Hi,
>
> I see some progress now.
> I was downloading .bin file to 0x0 (the same procedure I was using
> before when I tried to download code to RAM an programming to flash).
> I decide to move from .bin to .elf and voilá...
>
> Now I have a new message
>
> --------------------------------------------------------------
> Program received signal SIGINT, Interrupt.
> CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
> SPR 2:Condition Register, UM140
> CR = 0x2042488d =
> (CR0=0x2|CR1=0x0|CR2=0x4|CR3=0x2|CR4=0x4|CR5=0x8|CR6=0x8|CR7=0xd)
> ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
> SPR 148:Interrupt Cause Register, UM994
> ICR = 0x00004000 = (SEI)
> 0x4b6c0 in hal_hardware_init ()
> ---------------------------------------------------------------
>
> looking at disassembled file
>
> ---------------------------------------------------------------
> 4b6b8: 90 64 01 74 stw r3,372(r4)
> 4b6bc: 3c 60 40 00 lis r3,16384
> 4b6c0: 60 63 08 01 ori r3,r3,2049
> 4b6c4: 3c a0 ff 80 lis r5,-128
> 4b6c8: 60 a5 07 74 ori r5,r5,1908
> 4b6cc: 90 64 01 00 stw r3,256(r4)
> 4b6d0: 90 a4 01 04 stw r5,260(r4)
> 4b6d4: 3c 60 00 00 lis r3,0
> 4b6d8: 60 63 00 81 ori r3,r3,129
> 4b6dc: 3c a0 ff 80 lis r5,-128
> 4b6e0: 60 a5 0e 00 ori r5,r5,3584
> 4b6e4: 90 64 01 08 stw r3,264(r4)
> 4b6e8: 90 a4 01 0c stw r5,268(r4)
> ---------------------------------------------------------------
>
> seems that the exception occurs when I'm programming BR0/OR0
>
> -------------------------------------------
> /*
> * Base Register initialization.
> */
>
> /* BOOT ROM */
> lwi r3,0x40000801 # 16-bit, GPCM
> lwi r5,0xFF800774 # 7 wait states, up to 8MB
> stw r3,BR0(r4)
> stw r5,OR0(r4)
>
> /* ONBOARD SDRAM */
> lwi r3,0x00000081 # 32-bit, UPMA
> lwi r5,0xFF800E00
> stw r3,BR1(r4)
> stw r5,OR1(r4)
> -----------------------------------------------
>
> I didn't see the problem yet. Any idea.
>
> Thanks,
> TT.
>
>
> On 6/20/07, Gary Thomas <gary@mlbassoc.com> wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > Tales Toledo wrote:
> > > Hi,
> > >
> > > I'm facing some problems trying to port redboot to MPC885...
> > > I have tried to follow the steps suggested at porting guide. I'm using only
> > > RAM as a first step but unfortunately I can get success. I'm using
> > > Viper files as reference.
> > >
> > > I'm using gdb with mpcbdm and get always the same exception when
> > > running it from RAM.
> >
> > Look carefully - this is failing on the first instruction you downloaded,
> > so it most certainly has nothing to do with porting eCos.
> > * Have you verified the code that was downloaded correctly?
> > * Have you successfully executed any code on this platform using these tools?
> >
> > - --
> > - ------------------------------------------------------------
> > Gary Thomas | Consulting for the
> > MLB Associates | Embedded world
> > - ------------------------------------------------------------
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.7 (GNU/Linux)
> > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
> >
> > iD8DBQFGeY4YmaKbSsQGV8ARAirMAJ9xEKtFrDXYOh5jB59disiPExgbUgCgjT0j
> > xmJBNpW1xfQruVljpMs/JrY=
> > =/UuG
> > -----END PGP SIGNATURE-----
> >
>
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [ECOS] PowerPC Redboot porting problems
2007-06-24 9:15 ` Tales Toledo
@ 2007-06-27 21:21 ` Tales Toledo
0 siblings, 0 replies; 5+ messages in thread
From: Tales Toledo @ 2007-06-27 21:21 UTC (permalink / raw)
To: Gary Thomas; +Cc: ecos-discuss
Hi Gary
you were right.
Seems that debug cable gdbinit file and eCos .S were in conflict.
The board misconfiguration cause errors that was hard to find due
debug tools lack at this case.
Thx,
TT
On 6/21/07, Tales Toledo <toledo.tales@gmail.com> wrote:
> Hi,
>
> Regarding your questions about the code it seems to be download
> correctly since hexdump from bin file is the same as
> powerpc-eabi-objdump from elf except for the 0x40000 offset present in
> elf file (no problem since this bin should be generated just for ROM).
>
> Regarding the tools, they are used to download other images/projects
> (u-boot) and program FLASH.
>
> For this project I would like to test and use redboot and that is the
> reason why I am boring you an all people with this.
>
> Right now I'm using gdb 5.0 with mpcbdm 1.2.2 (Unfortunately I don't
> have a BDI2000 ;-(.) to load redboot.elf to SDRAM.
> $ powerpc-linux-gdb -x board.gdbinit redboot.elf
> (gdb) load
> Loading section .vectors, size 0x2000 lma 0x40000
> Loading section .text, size 0x1c568 lma 0x42000
> Loading section .rodata, size 0x59b4 lma 0x5e568
> Loading section .data, size 0x11a0 lma 0x63f20
> Start address 0x40100 , load size 151740
> Transfer rate: 134880 bits/sec, 510 bytes/write.
>
> To run it I a make
> (gdb) j *0x40100
>
> but as I said before I always got a SIGINT interrupt
>
> Program received signal SIGINT, Interrupt.
> CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
> SPR 2:Condition Register, UM140
> CR = 0x2002608d =
> (CR0=0x2|CR1=0x0|CR2=0x0|CR3=0x2|CR4=0x6|CR5=0x0|CR6=0x8|CR7=0xd)
> ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
> SPR 148:Interrupt Cause Register, UM994
> ICR = 0x00004000 = (SEI)
> 0x4b6c0 in ?? ()
> (gdb)
>
> looking at objdump and .S files is in the right moment when I tried to
> program BR0/CS0
>
> ------------------------------ objdump file
> 4b6b4: 90 64 01 70 stw r3,368(r4)
> 4b6b8: 90 64 01 74 stw r3,372(r4)
> 4b6bc: 3c 60 40 00 lis r3,16384
> 4b6c0: 60 63 08 01 ori r3,r3,2049
> 4b6c4: 3c a0 ff 80 lis r5,-128
> 4b6c8: 60 a5 07 74 ori r5,r5,1908
> 4b6cc: 90 64 01 00 stw r3,256(r4)
> 4b6d0: 90 a4 01 04 stw r5,260(r4)
> 4b6d4: 3c 60 00 00 lis r3,0
> -------------------------------
>
> ------------------------------- .S file
> lwi r3,0x00802114|(MAMR_PTA<<24)
> stw r3,MAMR(r4)
> stw r3,MBMR(r4)
>
> /*
> * Base Register initialization.
> */
>
> /* BOOT ROM */
> lwi r3,0x40000801 # 16-bit, GPCM
> lwi r5,0xFF800774 # 7 wait states, up to 8MB
> stw r3,BR0(r4)
> stw r5,OR0(r4)
>
> /* ONBOARD SDRAM */
> lwi r3,0x00000081 # 32-bit, UPMA
> lwi r5,0xFF800E00
> stw r3,BR1(r4)
> stw r5,OR1(r4)
> -------------------------------
>
> Why does it happen? Do you have an idea?
>
> Thx again,
> TT.
>
> On 6/20/07, Tales Toledo <toledo.tales@gmail.com> wrote:
> > Hi,
> >
> > I see some progress now.
> > I was downloading .bin file to 0x0 (the same procedure I was using
> > before when I tried to download code to RAM an programming to flash).
> > I decide to move from .bin to .elf and voilá...
> >
> > Now I have a new message
> >
> > --------------------------------------------------------------
> > Program received signal SIGINT, Interrupt.
> > CR := (CR0|4CR1|8CR2|12CR3|16CR4|20CR5|24CR6|28CR7)
> > SPR 2:Condition Register, UM140
> > CR = 0x2042488d =
> > (CR0=0x2|CR1=0x0|CR2=0x4|CR3=0x2|CR4=0x4|CR5=0x8|CR6=0x8|CR7=0xd)
> > ICR := (|RST|CHSTP|MCI||6EXTI|ALI|PRI|FPUVI|DECI||13SYSI|TR||17SEI|ITLBMS|DTBLMS|ITLBER|DTLBER||28LBRK|IBRK|EBRK|DPI)
> > SPR 148:Interrupt Cause Register, UM994
> > ICR = 0x00004000 = (SEI)
> > 0x4b6c0 in hal_hardware_init ()
> > ---------------------------------------------------------------
> >
> > looking at disassembled file
> >
> > ---------------------------------------------------------------
> > 4b6b8: 90 64 01 74 stw r3,372(r4)
> > 4b6bc: 3c 60 40 00 lis r3,16384
> > 4b6c0: 60 63 08 01 ori r3,r3,2049
> > 4b6c4: 3c a0 ff 80 lis r5,-128
> > 4b6c8: 60 a5 07 74 ori r5,r5,1908
> > 4b6cc: 90 64 01 00 stw r3,256(r4)
> > 4b6d0: 90 a4 01 04 stw r5,260(r4)
> > 4b6d4: 3c 60 00 00 lis r3,0
> > 4b6d8: 60 63 00 81 ori r3,r3,129
> > 4b6dc: 3c a0 ff 80 lis r5,-128
> > 4b6e0: 60 a5 0e 00 ori r5,r5,3584
> > 4b6e4: 90 64 01 08 stw r3,264(r4)
> > 4b6e8: 90 a4 01 0c stw r5,268(r4)
> > ---------------------------------------------------------------
> >
> > seems that the exception occurs when I'm programming BR0/OR0
> >
> > -------------------------------------------
> > /*
> > * Base Register initialization.
> > */
> >
> > /* BOOT ROM */
> > lwi r3,0x40000801 # 16-bit, GPCM
> > lwi r5,0xFF800774 # 7 wait states, up to 8MB
> > stw r3,BR0(r4)
> > stw r5,OR0(r4)
> >
> > /* ONBOARD SDRAM */
> > lwi r3,0x00000081 # 32-bit, UPMA
> > lwi r5,0xFF800E00
> > stw r3,BR1(r4)
> > stw r5,OR1(r4)
> > -----------------------------------------------
> >
> > I didn't see the problem yet. Any idea.
> >
> > Thanks,
> > TT.
> >
> >
> > On 6/20/07, Gary Thomas <gary@mlbassoc.com> wrote:
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > Tales Toledo wrote:
> > > > Hi,
> > > >
> > > > I'm facing some problems trying to port redboot to MPC885...
> > > > I have tried to follow the steps suggested at porting guide. I'm using only
> > > > RAM as a first step but unfortunately I can get success. I'm using
> > > > Viper files as reference.
> > > >
> > > > I'm using gdb with mpcbdm and get always the same exception when
> > > > running it from RAM.
> > >
> > > Look carefully - this is failing on the first instruction you downloaded,
> > > so it most certainly has nothing to do with porting eCos.
> > > * Have you verified the code that was downloaded correctly?
> > > * Have you successfully executed any code on this platform using these tools?
> > >
> > > - --
> > > - ------------------------------------------------------------
> > > Gary Thomas | Consulting for the
> > > MLB Associates | Embedded world
> > > - ------------------------------------------------------------
> > > -----BEGIN PGP SIGNATURE-----
> > > Version: GnuPG v1.4.7 (GNU/Linux)
> > > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
> > >
> > > iD8DBQFGeY4YmaKbSsQGV8ARAirMAJ9xEKtFrDXYOh5jB59disiPExgbUgCgjT0j
> > > xmJBNpW1xfQruVljpMs/JrY=
> > > =/UuG
> > > -----END PGP SIGNATURE-----
> > >
> >
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-06-27 19:51 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-06-20 21:46 [ECOS] PowerPC Redboot porting problems Tales Toledo
2007-06-21 3:48 ` Gary Thomas
2007-06-21 11:44 ` Tales Toledo
2007-06-24 9:15 ` Tales Toledo
2007-06-27 21:21 ` Tales Toledo
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