January 2005 - U-Boot

[U-Boot-Users] (no subject)
by Pankaj GOYAL 31 Jan '05

31 Jan '05

Hi, I m using the u-boot for am arm-926ejs based architechture.In my board I only have a nand flash of 32 MB and my system support the automatic reading the bootloader to RAM from NAND and jump to that location in memeory.But it support only 16KB of bootloader.So I want to minimize the size of my bootloader to around 16Kb.I want only the support of Nand flash and the jffs2 file system support.I do not even want the consol support.Can any one please tell me how to reduced the size of u-boot image. Thanks

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[U-Boot-Users] (no subject)
by sudheer rao anmol 31 Jan '05

31 Jan '05

hello all, i am new to embedded systems. i am trying to build a tool chain using binutils-2.14, gcc-3.3.2, glibc-2.3.2. All are downloaded from kegel.com. i built successfully the binutils. when i trying to built the gcc, i face the errors. i configured gcc using the following command. gcc-3.3.2#./configure --prefix=/usr/local/ --enable-version-specific-runtime-libs --enable-threads=posix --enable-shared --enable-languages=c,c++,f77,objc,java,ada --enable-libgcj --with-gc=simple --enable-nls --enable-interpreter --with-libiconv-prefix=/usr/local/libiconv-1.8 This command is obtained from http://gcc.gnu.org/ml/gcc/2003-11/msg00690.html (given in a README file) Here it got configured and when i gave make all the following error appears. *********** In file included from tconfig.h:22, from libgcc2.c:36: config/rs6000/linux.h:89:20: signal.h: No such file or directory In file included from tconfig.h:22, from libgcc2.c:36: config/rs6000/linux.h:98: error: parse error before "stack_t" config/rs6000/linux.h:98: warning: no semicolon at end of struct or union config/rs6000/linux.h:100: error: parse error before "uc_sigmask" config/rs6000/linux.h:100: warning: type defaults to `int' in declaration of `uc_sigmask' config/rs6000/linux.h:100: warning: data definition has no type or storage classconfig/rs6000/linux.h:99: error: storage size of `uc_mcontext' isn't known make[2]: *** [libgcc/./_muldi3.o] Error 1 make[2]: Leaving directory `/home/sudheer/ToolChain/Kegel_Test/gcc-3.3.2/gcc' make[1]: *** [stmp-multilib] Error 2 make[1]: Leaving directory `/home/sudheer/ToolChain/Kegel_Test/gcc-3.3.2/gcc' make: *** [all-gcc] Error 2 [root@asudheer gcc-3.3.2]# ************************ Please kindly suggest me what to do and how to proceed. thanks and regards sudheer sudheer A

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[U-Boot-Users] porting new hardware
by Mike Lee 30 Jan '05

30 Jan '05

Dear all I am trying to port new hardware, but i get a linking error "arm-linux-ld: invalid hex number `-u__u_boot_cmd_autoscr' " Could anyone give me some ideas on this? best regard -- ------------------------------------------------------- Mike Lee

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[U-Boot-Users] Clarification regarding configuration of flash
by Ratheesh 30 Jan '05

30 Jan '05

Hi All, I am new to u-boot. I am trying to port u-boot on custom(based on MPC850 processor) . I have confusion regarding the use of CFG_BR0_PRELIM,CFG_OR0_PRELIM,CFG_OR0_REMAP. please tell me what they signify. my board memory map is as follows: FLASH : 0xFF400000 -> 0xFF5FFFFF ==> CS0 (AM29LV160DT (Port Size=16)) SDRAM: 0x00000000 -> 0x00800000 ==> CS1 IMMR : 0xFF000000 where should I set CFG_MONITOR_BASE? please help me. thanks in advance. Regards, Ratheesh

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[U-Boot-Users] About MXL bootstrap mode
by Mike Lee 29 Jan '05

29 Jan '05

Dear All Does anyone try to run some script or program to download u-boot by using I.MX bootstrap loader? -- ------------------------------------------------------- Mike Lee

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RE: [U-Boot-Users] Query regarding PCI interrupt controller.
by Rune Torgersen 29 Jan '05

29 Jan '05

> -----Original Message----- > From: Prathima_Kolar > Sent: Thursday, January 27, 2005 07:08 > I am working on an 8266 based PCI Mezzanine Card. > I could not find any information on the PCI interrupt > controller and how it is being used. Th MPC8266 has an external PCI interrupt controller located in an FPGA. It muxes all PCI interrupt into one IRQ line going to the CPU. It basically has two registers, one tells which PCI interrupt has been triggered, the other masks the interrupt. Get the documentation for the MPC8266ADS board from Freescale.

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[U-Boot-Users] comment in mpc8xx - cpu_init.c - line 76
by Peter Asemann 28 Jan '05

28 Jan '05

Line 76 in the most up-to-date version of .../u-boot/cpu/mpc8xx/cpu_init.c tells me NOT to change EBDF. Do I need to stick to this... advice? The Hard Reset Configuration word of my MPC875-powered hardware is hard-wired to set the SCCR[EBDF] to 01 (half bus speed) at hard reset in the moment. I had hoped that I could change SCCR[EBDF] to 00 (full bus speed) via software if needed. So - is the comment in the code some kind of serious warning, for the CPU will burn or crash if I try to change EBDF via software, or may I ignore it? I'd need the hardware guys to put in some additional jumper in case I can't change SCCR[EBDF] by software for some reason. Thanks for your time, Peter Asemann

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[U-Boot-Users] duplicate environment variables in U-Boot?
by Clemens Koller 28 Jan '05

28 Jan '05

Hello! Several times, I ran into troubles with the command parsing of U-Boot. Sometimes - especially if I had to do some simple corrections (backspace only, no delete, no cursor movements) the 'set xxx yyy) command doesn't get recognized. Sometimes some commands like 'run nfsboot' gets ignored - especially after a long time doing nothing (waiting on the prompt for i.e. >15min) (no bs used or any other compilcated editing was used). I just get another prompt. If I type it again, it works fine. And, finally, due to some of these problems, I guess, I got now a duplicate environment variable: -----8<--------------------------------------------------------------- U-Boot 1.1.2 (Oct 28 2004 - 14:02:56) Freescale PowerPC Core: E500, Version: 2.0, (0x80200020) System: 8540, Version: 2.0, (0x80300020) Clocks: CPU: 825 MHz, CCB: 330 MHz, DDR: 165 MHz, LBC: 82 MHz L1 D-cache 32KB, L1 I-cache 32KB enabled. Board: MicroSys PM854 PCI1: 32 bit, 66 MHz (compiled) ... => pri ... stdin=serial stdout=serial stderr=serial bootfile=/mlinux.UB.T1 bootfile=/vmlinux.UB.T1 Environment size: 1084/8188 bytes => -----8<--------------------------------------------------------------- Any ideas, fixes, suggestions? -- Clemens Koller _______________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Str. 45/1 81379 Muenchen Germany http://www.anagramm.de Phone: +49-89-741518-50 Fax: +49-89-741518-19

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[U-Boot-Users] Flash Burst Mode, where goes init to?
by Konstantin Kletschke 28 Jan '05

28 Jan '05

Hi! With u-boot command interface I finally got the burst mode of my intel 28F128K3 device running. Initializing is in three steps: Tell Flash it should "bursting", write 7F84 into RCR register: mm.w 0x00007F84 <- 0x60 Then Chipselect 0 is informed: mm 0x220000 <- 0x00510800 Finally send ACK Command to Flash in burst mode: mm.w 0x00007F84 <- 0x03 Thats it. Or, in assembler it _should_ look like: /* initialize burst mode */ ldr r0, =FLASH_ADDRESS ldr r1, =FLASH_RCR_CMD str r1, [r0] ldr r0, =CS0U ldr r1, =CFG_CS0U_B_VAL str r1, [r0] ldr r0, =FLASH_ADDRESS ldr r1, =FLASH_ACK_CMD str r1, [r0] /* end initializing burst mode */ To experiment with different timings and word burst sizes I would like to implement the code into the u-boot code. But where do I should put it? I use Motorola ARM9 i.MX CPU on scb9328 board. If I understood right, 1st memsetup.S is executed, after that the relocation starts. My reading of the code is vice versa sequence, I am confused now... Konsti -- GPG KeyID EF62FCEF Fingerprint: 13C9 B16B 9844 EC15 CC2E A080 1E69 3FDA EF62 FCEF

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[U-Boot-Users] smc91111.c : error: label at end of compound statement
by Komal Shah 28 Jan '05

28 Jan '05

Hi All, I have tried to cross-compile (arm-linux-gcc-3.4.0) u-boot source-code with smc91111.c driver enabled. I am getting this error, because of recent changes in gcc-3.4.x series to detect them. ----------snip-------------- arm-linux-gcc -g -Os -fno-strict-aliasing -fno-common -ffixed-r8 -D__KERNEL__ -DTEXT_BASE=0x80e80000 -I/home/bluesky/u-boot/include -fno-builtin -ffreestanding -nostdinc -isystem /public/data/omapts/linux/arm-tc/gcc-3.4.0-1/bin/../lib/gcc/arm-linux/3.4.0/include -pipe -DCONFIG_ARM -D__ARM__ -mapcs-32 -march=armv6 -Wall -Wstrict-prototypes -c -o smc91111.o smc91111.c smc91111.c: In function `smc_phy_configure': smc91111.c:1343: error: label at end of compound statement make[1]: *** [smc91111.o] Error 1 make[1]: Leaving directory `/home/bluesky/u-boot/drivers' make: *** [drivers/libdrivers.a] Error 2 ----------snip-------------- code snippet: ----------snip-------------- /* Re-Configure the Receive/Phy Control register */ SMC_outw (RPC_DEFAULT, RPC_REG); smc_phy_configure_exit: } ----------snip-------------- It seems to me that no one there tried the above combination. Simple solution is to put some dummy varibale initialisation _or_ is there any compiler switch to make it as warning. ===== ---Komal Shah __________________________________ Do you Yahoo!? Yahoo! Mail - now with 250MB free storage. Learn more. http://info.mail.yahoo.com/mail_250

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