January 2006 - U-Boot

Fwd: Re[2]: [U-Boot-Users] at91rm9200 lowlevel_init.S
by Zhukov 12 Jan '06

12 Jan '06

>> Does anybody know, what can be tuned in "lowlevel_init" procedure in >> lowlevel_init.S module for at91rm9200dk? This init suspends u-boot. I WD> The code is supposed to work fine on the at91rm9200dk board. WD> Are you really using such a board, or is this some custom hardware? Yes, my board is customozed - the hardware engineer edited RomBoot because of some differences in SDRAM system. But... anyway, the lowlevel_init.S seems so strange, that some bug in its code is suspected. Would you explain the meaning of _MTEXT_BASE in fragments like this: ldr r0, =SMRDATA1 ldr r1, _MTEXT_BASE sub r0, r0, r1 add r2, r0, #176 2: /* the address */ ldr r1, [r0], #4 /* the value */ ldr r3, [r0], #4 str r3, [r1] cmp r2, r0 bne 2b I guess _MTEXT_BASE is a start of code, the location just after vectors. But what's the use of it here? Suspecting hardware problem, I skip everything after the first step of the procedure: /* Get the CKGR Base Address */ ldr r1, =AT91C_BASE_CKGR /* Main oscillator Enable register */ #ifdef CFG_USE_MAIN_OSCILLATOR ldr r0, =0x0000FF01 /* Enable main oscillator */ #else ldr r0, =0x0000FF00 /* Disable main oscillator */ #endif str r0, [r1, #CKGR_MOR] ... /* delay */ b exit This cut works fine, u-boot loads. Next, I tried to replace this with the following: ldr r0, =CKGRDATA ldr r1, _MTEXT_BASE sub r0, r0, r1 add r2, r0, #8 /* 8 bytes */ 3: /* the address */ ldr r1, [r0], #4 /* the value */ ldr r3, [r0], #4 str r3, [r1] cmp r2, r0 bne 3b ... /* delay */ ... CKGRDATA: .word AT91C_BASE_CKGR .word 0x0000FF01 /* 8 bytes long */ It FAILS! Obviously, u-boot crashes here. Something wrong in code... Best regards,

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RE: [U-Boot-Users] Excluding Env Variable section from the u-boot.bin
by Nuno João (Ext_NBS) 12 Jan '06

12 Jan '06

As far as I understood / remember, you can have the environment and part of u-boot's code sharing the same sector, which makes it at least more difficult to upgrade the code using a BDI-like tool which usually works on a full-sector basis. -----Original Message----- From: wd(a)denx.de [mailto:wd@denx.de] Sent: quinta-feira, 12 de Janeiro de 2006 14:44 To: Nuno João (Ext_NBS) Cc: u-boot-users(a)lists.sourceforge.net; Albert David Subject: Re: [U-Boot-Users] Excluding Env Variable section from the u-boot.bin (...) It is *always* possible to update the U-Boot image and keep the old environment settings. Typically all you need for embedded environment is a simple "saveenv" command.

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[U-Boot-Users] help reqd for flash
by prabha.j＠tcs.com 12 Jan '06

12 Jan '06

Hi all, I am having some doubts regarding the flashes. I am having two types of flash. One flash is of ST make (M29W040B) having two chips of 512kbit size (total size is 1MB). The total sector in each chip is 8. and another flash used for storing code. This is of AMD make (AM29LV160B).It is also of two chips with 2MBit and total is 4MB size.The total sector is 35. Now my question is how to define these things in myboard.h file. ie #define CFG_MAX_FLASH_BANKS //what values i have to put for these defined variables #define CFG_MAX_FLASH_SECT // what values i have to put for these defined variable #define CFG_FLASH_SIZE //what values i have to put for these defined variable #define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */ #define CFG_FLASH_WRITE_TOUT 5 /* Timeout for Flash Write (in ms) */ #define CFG_FLASH_LOCK_TOUT 5 /* Timeout for Flash Set Lock Bit (in ms) */ #define CFG_FLASH_UNLOCK_TOUT 10000 /* Timeout for Flash Clear Lock Bits (in ms) */ #define CFG_FLASH_PROTECTION 2. I came to know from datasheet of AMD that it is CFI complaint but i did get any info regarding ST make . Can anybody tell is this flash is cfi complaint or not. Please help me in this regard. Thanks in advance. Prabha J. Tata Consultancy Services Limited Mailto: prabha.j(a)tcs.com Website: http://www.tcs.com Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

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RE: [U-Boot-Users] Excluding Env Variable section from the u-boot.bin
by Nuno João (Ext_NBS) 12 Jan '06

12 Jan '06

I have a configuration in 2 of "my" boards where the environment variable's area lays in a different sector from u-boot code, also so that it is possible to upgrade u-boot while keeping the environment: In mpc8xx board I have: /* * Environment in flash. It will be on the flash's 3rd 64KB block, fully * using it. U-boot will use the 1st two 64KB blocks, as specified by * CFG_MONITOR_LEN above. */ #define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */ #define CFG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */ In a mpc85xx board I have: /* * Environment */ #define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_SECT_SIZE 0x40000 /* 256K (one sector) for env */ /* env in its own flash sector, right before u-boot */ #define CFG_ENV_SIZE CFG_ENV_SECT_SIZE #define CFG_ENV_ADDR 0xffe00000 I didn't need to change anything else. There are some preprocessor macros in the environment code that will handle most of the job. Cheers -----Original Message----- From: u-boot-users-admin(a)lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net] On Behalf Of Albert David Sent: quinta-feira, 12 de Janeiro de 2006 11:27 To: u-boot-users(a)lists.sourceforge.net Subject: [U-Boot-Users] Excluding Env Variable section from the u-boot.bin Dears, For my ppc405EP based custom board I would like to make few changes to the u-boot memory map, so that every time I update the u-boot, environment variables in the flash remain untouched. (...)

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[U-Boot-Users] Problem with the cfi flash driver with a x8/x16 flash configuredin x8 mode.
by Txema Lopez 12 Jan '06

12 Jan '06

Hi all, Does anybody test the cfi flash driver (cfi_flash.c) with a x8/x16 flash configured in x8 mode ? I'm trying to port U-Boot for a Lite5200B with a S29GL128N flash (CFI compliant) using the cfi flash driver. U-Boot detects the flash correctly but It's unable to erase or write the flash. In my case the following patch fix the bug but I'm not completly sure If It's only a bug with my configuration. Any suggestions? Could anybody test the patch in other architecture? My configuration for the cfi driver is: #define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */ #define CFG_MAX_FLASH_SECT 128 /* max num of sects on one chip */ #undef CONFIG_FLASH_16BIT /* Flash is 8-bit */ #define CFG_FLASH_CFI_DRIVER #define CFG_FLASH_CFI #define CFG_FLASH_BANKS_LIST {CFG_CS1_START,CFG_CS0_START} And the patch: --- ../tmp/u-boot/drivers/cfi_flash.c 2006-01-12 12:22:08.000000000 +0100 +++ drivers/cfi_flash.c 2006-01-12 13:35:11.000000000 +0100 @@ -107,9 +107,19 @@ #define AMD_STATUS_TOGGLE 0x40 #define AMD_STATUS_ERROR 0x20 + +#if 0 #define AMD_ADDR_ERASE_START 0x555 #define AMD_ADDR_START 0x555 #define AMD_ADDR_ACK 0x2AA +#else +int amd_addr_erase_start = 0x555; +int amd_addr_start = 0x555; +int amd_addr_ack = 0x2AA; +#define AMD_ADDR_ERASE_START amd_addr_erase_start +#define AMD_ADDR_START amd_addr_start +#define AMD_ADDR_ACK amd_addr_ack +#endif #define FLASH_OFFSET_CFI 0x55 #define FLASH_OFFSET_CFI_RESP 0x10 @@ -1111,6 +1121,9 @@ ulong flash_get_size (ulong base, int ba info->flash_id = FLASH_MAN_CFI; if ((info->interface == FLASH_CFI_X8X16) && (info->chipwidth == FLASH_CFI_BY8)) { info->portwidth >>= 1; /* XXX - Need to test on x8/x16 in parallel. */ + amd_addr_erase_start = 0xAAA; + amd_addr_start = 0xAAA; + amd_addr_ack = 0x555; } } Best regards, Jose Maria Lopez.

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[U-Boot-Users] the custom borad supportting nandflash
by willow (sent by Nabble.com) 12 Jan '06

12 Jan '06

Hi all, Who could tell me any custom board' name which image of the u-boot.bin is saved in the nandflash in a "u-boot-1.1.4.tar.bz2" packet. I am portting the u-boot to a arm926jes cutom borad booting from a nandflash and had successfully boot from a norflash. But what do I need to do for booting from nand? Perhaps I can find some tips from the exist custom boards in the u-boot packet. Please help. Best regards, Willow -- View this message in context: http://www.nabble.com/the-custom-borad-supportting-nandflash-t896328.html#a… Sent from the Uboot - Users forum at Nabble.com.

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[U-Boot-Users] sandpoint8245 Build fails with optimization turned off
by Eric Olsen 12 Jan '06

12 Jan '06

I was attempting to debug an issue so I wanted to turn off the optimization (change from -Os to -O0 in config.mk) so I can more easily step thru code in gdb. When I do this for the sandpoint8245 target I get the following error. I am using u-boot 1.1.4 pulled down yesterday and gcc 4.0.1 toolchain built by crosstool. a - virtex2.o a - xilinx.o gmake[1]: Leaving directory `/home/eolsen/tree/u-boot-1.1.4/u-boot-1.1.4/common' UNDEF_SYM=`powerpc-603e-linux-gnu-objdump -x lib_generic/libgeneric.a board/sandpoint/libsandpoint.a cpu/mpc824x/libmpc824x.a lib_ppc/libppc.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a |sed -n -e 's/.*$__u_boot_cmd_.*$/-u\1/p'|sort|uniq`;\ powerpc-603e-linux-gnu-ld -Bstatic -T /home/eolsen/tree/u-boot-1.1.4/u-boot-1.1.4/board/sandpoint/u-boot.lds -Ttext 0xFFF00000 -n $UNDEF_SYM cpu/mpc824x/start.o \ --start-group lib_generic/libgeneric.a board/sandpoint/libsandpoint.a cpu/mpc824x/libmpc824x.a lib_ppc/libppc.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a --end-group -L /usr/local/opt/crosstool/gcc-4.0.1-glibc-2.3.5/powerpc-603e-linux-gnu/bin/../lib/gcc/powerpc-603e-linux-gnu/4.0.1/nof -lgcc \ -Map u-boot.map -o u-boot /home/eolsen/tree/u-boot-1.1.4/u-boot-1.1.4/board/sandpoint/u-boot.lds:134 cannot move location counter backwards (from fff04288 to fff04000) gmake: *** [u-boot] Error 1 Has anyone else managed to fix this? Thanks Eric

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[U-Boot-Users] ssi.h missing for sc520_spunk
by sunjo (sent by Nabble.com) 11 Jan '06

11 Jan '06

I am using the AMD Elan SC520 microcontroller. Trying to create a bootloader using u-boot. However i although i am able to configure the file using make sc520_spunk_config I am not fully able to make all and i always get the error # make distclean ......... # make sc520_spunk_config ......... #make all ......... error msg: ------------- a - vsprintf.o a - zlib.o make[1]: Leaving directory `/home/karthik/i386-uboot/src/u-boot-1.1.2/lib_generic' make -C `dirname board/sc520_spunk/libsc520_spunk.a` make[1]: Entering directory `/home/karthik/i386-uboot/src/u-boot-1.1.2/board/sc520_spunk' gcc -M -g -Os -D__KERNEL__ -DTEXT_BASE=0x387c0000 -I/home/karthik/i386-uboot/src/u-boot-1.1.2/include -fno-builtin -ffreestanding -nostdinc -isystem /usr/lib/gcc-lib/i386-redhat-linux/3.2.3/include -pipe -DCONFIG_I386 -D__I386__ -march=i386 -Werror sc520_spunk_asm.S sc520_spunk_asm16.S sc520_spunk.c flash.c > .depend sc520_spunk.c:27:17: ssi.h: No such file or directory make[1]: *** [.depend] Error 1 make[1]: Leaving directory `/home/karthik/i386-uboot/src/u-boot-1.1.2/board/sc520_spunk' make: *** [board/sc520_spunk/libsc520_spunk.a] Error 2 I have tried to apply the patch that u have already provided in this forum, but that still does not solve the problem. Has there been any fix available for this yet. I presume it is a problem that all AMD users have when using U-boot. Hope to hear a reply soon. Thank you Sunjo -- View this message in context: http://www.nabble.com/ssi.h-missing-for-sc520_spunk-t897496.html#a2326260 Sent from the Uboot - Users forum at Nabble.com.

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[U-Boot-Users] the custom borad supportting nandflash
by willow (sent by Nabble.com) 11 Jan '06

11 Jan '06

Hi all, Who could tell me any custom board' name which image of the u-boot.bin is saved in the nandflash in a "u-boot-1.1.4.tar.bz2" packet. I am portting the u-boot to a arm926jes cutom borad booting from a nandflash and had successfully boot from a norflash. But what do I need to do for booting from nand? Perhaps I can find some tips from the exist custom boards in the u-boot packet. Please help. Best regards, Willow -- View this message in context: http://www.nabble.com/the-custom-borad-supportting-nandflash-t896330.html#a… Sent from the Uboot - Users forum at Nabble.com.

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[U-Boot-Users] at91rm9200 lowlevel_init.S
by Zhukov 11 Jan '06

11 Jan '06

Hello, everybody. Does anybody know, what can be tuned in "lowlevel_init" procedure in lowlevel_init.S module for at91rm9200dk? This init suspends u-boot. I tried to play with delays (loops), but it won't work anyway. Regards Andrew Zhukov

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