May 2008 - U-Boot

[U-Boot-Users] BDI2000 with ppc440epx.
by Leonid 02 May '08

02 May '08

Hi: I have some problem with AMCC PPC440epx CPU when it boots from NAND. I am using sequoia.cfg file. If I do "reset halt" on BDI and then "go", CPU doesn't boot. If I do "reset run" it boots OK. That points on some potential problem in .cfg file. OK, I removed entire [INIT] section, but situation didn't change. Moreover, when I set breakpoint to the function which surely is invoked and do "reset run", I don't hit breakpoint (CPU boots till the end). Do you have any idea what I may be doing wrong? Thanks, Leonid.

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[U-Boot-Users] Chitta Nagi hat dir eine hi5 Freunde-Anfrage geschickt
by info＠hi5.com 02 May '08

02 May '08

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[U-Boot-Users] U-Boot environment for NAND booting scheme
by Leonid 01 May '08

01 May '08

Hi: If CPU boot from NAND (at least for AMCC Sequoia board) u-boot environment is part of u-boot image itself, see extraction from sequia.h file: #ifdef CFG_ENV_IS_IN_NAND /* * For NAND booting the environment is embedded in the U-Boot image. Please take * look at the file board/amcc/sequoia/u-boot-nand.lds for details. */ #define CFG_ENV_SIZE CFG_NAND_BLOCK_SIZE #define CFG_ENV_OFFSET (CFG_NAND_U_BOOT_OFFS + CFG_ENV_SIZE) #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_SIZE) #endif Such layout supported by u-boot-nand.lds as comment suggests: /* WARNING - the following is hand-optimized to fit within */ /* the sector layout of our flash chips! XXX FIXME XXX */ cpu/ppc4xx/start.o (.text) /* Align to next NAND block */ . = ALIGN(0x4000); common/environment.o (.ppcenv) /* Keep some space here for redundant env and potential bad env blocks */ . = ALIGN(0x10000); The problem is that any time u-boot image is updated, its environment is lost which is not convenient if the environment differs from default one significantly. Can I put environment elsewhere on NAND flash and what is bad in doing so? Thanks, Leonid.

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[U-Boot-Users] [PATCH] onenand: rename 16 bit memory copy into memcpy_16() to avoid conflicts
by Wolfgang Denk 01 May '08

01 May '08

Onenand needs a version of memcpy() which performs 16 bit accesses only; make sure the name does not conflict with the standard function. Signed-off-by: Wolfgang Denk <wd(a)denx.de> --- drivers/mtd/onenand/onenand_base.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 174384e..d1b9f8f 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -21,7 +21,7 @@ #include <asm/errno.h> /* It should access 16-bit instead of 8-bit */ -static inline void *memcpy(void *dst, const void *src, unsigned int len) +static inline void *memcpy_16(void *dst, const void *src, unsigned int len) { void *ret = dst; short *d = dst; @@ -358,7 +358,7 @@ static int onenand_read_bufferram(struct mtd_info *mtd, int area, bufferram = this->base + area; bufferram += onenand_bufferram_offset(mtd, area); - memcpy(buffer, bufferram + offset, count); + memcpy_16(buffer, bufferram + offset, count); return 0; } @@ -385,7 +385,7 @@ static int onenand_sync_read_bufferram(struct mtd_info *mtd, int area, this->mmcontrol(mtd, ONENAND_SYS_CFG1_SYNC_READ); - memcpy(buffer, bufferram + offset, count); + memcpy_16(buffer, bufferram + offset, count); this->mmcontrol(mtd, 0); @@ -412,7 +412,7 @@ static int onenand_write_bufferram(struct mtd_info *mtd, int area, bufferram = this->base + area; bufferram += onenand_bufferram_offset(mtd, area); - memcpy(bufferram + offset, buffer, count); + memcpy_16(bufferram + offset, buffer, count); return 0; } -- 1.5.4.2

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[U-Boot-Users] (no subject)
by 钟文辉 01 May '08

01 May '08

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[U-Boot-Users] You've received A Hallmark E-Card!
by hallmark.com 01 May '08

01 May '08

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[U-Boot-Users] U-Boot V2: error: unable to open 'stdarg.h'
by Nishanth Menon 01 May '08

01 May '08

Hi Folks, Been stumped with the sandbox a bit on getting sparse to check code, with the issue being very similar to the thread here: http://lkml.org/lkml/2005/5/17/222 though was unable to trace the thread to a conclusion to the specific problem itself. other than pointing at a bug in kbuild system as per http://lkml.org/lkml/2005/5/18/293. But U-boot version of kbuild does really seem to do "gcc --print-file-name=include" Commands: make sandbox_defconfig make V=1 C=2 <snip> sparse -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.2.3/include -Wp,-MD,common/.hush.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.2.3/include -D__KERNEL__ -D__U_BOOT__ -Iinclude -include include/linux/autoconf.h -fno-builtin -ffreestanding -nostdinc -Wall -pipe -fno-strict-aliasing -P -fno-common -Os -Dmalloc=u_boot_malloc -Dfree=u_boot_free -Drealloc=u_boot_realloc -Dread=u_boot_read -Dwrite=u_boot_write -Dopen=u_boot_open -Dclose=u_boot_close -Dlseek=u_boot_lseek -Dperror=u_boot_perror -Derrno=u_boot_errno -Dgetc=u_boot_getc -Dputc=u_boot_putc -Dfgetc=u_boot_fgetc -Dfputc=u_boot_fputc -Dfgets=u_boot_fgets -Dfputs=u_boot_fputs -Dsetenv=u_boot_setenv -Dgetenv=u_boot_getenv -Dprintf=u_boot_printf -Dglob=u_boot_glob -Dglobfree=u_boot_globfree -g -fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(hush)" -D"KBUILD_MODNAME=KBUILD_STR(hush)" common/hush.c ; include/stdio.h:4:11: error: unable to open 'stdarg.h' make[1]: *** [common/hush.o] Error 1 make: *** [common] Error 2 Strace says: <snip> open("include/stdio.h", O_RDONLY) = 4 read(4, "#ifndef __STDIO_H\n#define __STDI"..., 8192) = 1151 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcfa8604000 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcfa85fc000 read(4, "", 8192) = 0 close(4) = 0 open("include/stdarg.h", O_RDONLY) = -1 ENOENT (No such file or directory) write(2, "include/stdio.h:4:11: error: una"..., 55include/stdio.h:4:11: error: unable to open 'stdarg.h' If I do a 'ln -s /usr/lib/gcc/x86_64-linux-gnu/4.2.3/include/stdarg.h include/' it goes thru this specific issue. the next issue is that it compiles on a 32bit FC5, but fails on 64bit Ubuntu8.04. Version of U-Boot V2: latest in git. machine, gcc and sparse versions: uname -a: Linux xxxxx 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC 2008 x86_64 GNU/Linux gcc --version: gcc (GCC) 4.2.3 (Ubuntu 4.2.3-2ubuntu7) Sparse: tried with 2 of them: [1] http://kernel.org/pub/software/devel/sparse/dist/sparse-0.4.1.tar.gz [2] http://www.codemonkey.org.uk/projects/git-snapshots/sparse/sparse-2008-05-0… Regards, Nishanth Menon

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