February 2007 - U-Boot

Re: [U-Boot-Users] boot up u-boot from RAM
by Nghiem, Tien 26 Nov '07

26 Nov '07

Lei, You have to rebuild your code to put your code in the RAM area (other than the FLASH area). Don't use the address 0x00-0x2fff because its reserved for the exception vectors usually. I have a Lite5200 EVB. I use the address 0x20000 to put my u-boot in RAM and it works. I don't know if it could be done for the mpc8270. Tien -----Original Message----- From: u-boot-users-bounces(a)lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net]On Behalf Of Lei Sun Sent: Thursday, October 26, 2006 4:15 PM To: u-boot-users(a)lists.sourceforge.net Subject: [U-Boot-Users] boot up u-boot from RAM Hi all: I am debugging a costomized board based on mpc8270, due to the design flaw, we can't boot up the system using flash, so I was trying to debug u-boot by loading it into the RAM. I used JTAG debugger to initialize the SDRAM and load the u-boot to 0x0, after reset, the PC is at 0x100. the disassembled code looks correct on that location, however, i can't single step start from 0x100. Is that because 0x100 is the reset vector ? I tried to put some breakpoint at some places not far from start point, but it gave me "unknown halt at 0x00000000" error after "run" command. after that the memory seems corrupted. Too bad I was using a bad debugger(Guardian-SE), I have a evaluation copy of the codewarrior plus USB+TAP from freescale. I tried that on our PQ2FADS-VR SDK. After reset, and CPU halt, I can't see any disassembed code on 0x100 (the uboot is already in the flash, and I assume it should read data from CS0 upon reset). Although the code does execute after hitting "run" button. I wonder why can't I see the disassembed code after reset? Thanks lei ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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[U-Boot-Users] AMCC440SPe & PCI Express
by Patil, Pankaj P. 26 Nov '07

26 Nov '07

Hi, I have been using u-boot-1.1.5 on my custom 440SPe based board. I am able to establish a link on PCIE0. However, I am having trouble accessing outbound Memory on PCIE0. My memory map seetings for Outbound PCIE memory are the default U-boot Settings. I was curious if anybody's tried accessing PCIE Outbound memory with the default settings. I seem to get a bus error when I try to access that region. Thanks Pankaj

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Re: [U-Boot-Users] adding support to new board
by Jeff Mann 26 Sep '07

26 Sep '07

See http://www.freescale.com/files/32bit/doc/app_note/AN3220.pdf -JM -----Original Message----- From: u-boot-users-bounces(a)lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Maximus Sent: Saturday, July 15, 2006 5:31 AM To: U-Boot-Users(a)lists.sourceforge.net Subject: [U-Boot-Users] adding support to new board Hi, Is there any document (step by step) approach on how to add u-boot support to a new board? any advices, Regards, jo ------------------------------------------------------------------------ - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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[U-Boot-Users] helloworld app from flash?
by Ram 08 Sep '07

08 Sep '07

Hi, im trying to run the helloworld application 1st Option: download the hello_world.bin to some location on RAM and execute it OMAP5912OSK: tftpboot 0x10000000 hello_world.bin OMAP5912OSK: go 0x10000004 This works fine. no problem 2nd Option: I want to burn the hello_world.bin into flash. During startup i want u-boot to launch it after booting - just like the way it boots the kernel. It does not work for me, this is what i did. $ ../tools/mkimage -A arm -O linux -T kernel -C gzip -a 0x10000000 -e 0x10000004 -n 'Hello Image' -d hello_world.bin.gz hello.img I downloaded the hello.img and burnt it to 0x40000 I did: setenv bootcmd bootm 0x40000 Now when i restarted the boot i get the following:- Example expects ABI version 2 Actual U-Boot ABI version 2 Hello World argc = 0 data abort pc : [<10000058>] lr : [<10000048>] sp : 1103fc10 ip : ffffffff fp : 00000001 r10: 110996d8 r9 : 1103fca4 r8 : 1103ffdc r7 : 110996d8 r6 : 00000203 r5 : 00000000 r4 : 00000000 r3 : 00000020 r2 : 00000001 r1 : 0000000a r0 : 00000000 Flags: nZCv IRQs off FIQs off Mode SVC_32 Resetting CPU ... All i am doing in the hello world example is to read a line and print the line entered. I am using readline function for doing that. The programs works fine if i download it to RAM and say go. but if i flash it it does not work?. Am i missing something?. Regards, sriram

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[U-Boot-Users] u-boot for MPC8548
by Rupesh S 07 Jun '07

07 Jun '07

Hi Does u-boot support any evaluation boards based on the MPC8548 processor ? Thanks in advance -- Rupesh S

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[U-Boot-Users] PCI OHCI / testing-USB branch
by Matthias Fuchs 07 Jun '07

07 Jun '07

Hi, is someone currently working on the testing-USB branch? Does it contain the most up to date USB code? I have to add support for a PCI OHCI controller on a 405 board. This will result in some modifications (endianess + bus offsets) of drivers/usb_ohci.c. Is someone else using a PCI OHCI controller on a board that I might have missed to check? Matthias

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[U-Boot-Users] [PATCH 1/1] Support for National DP83848 Ethernet Phy
by kim M 22 May '07

22 May '07

Hi all If anyone interested, this is a patch which adds support for the National DP83848 Ethernet Phy. It allows derivatives of the at91rm9200dk board to use this Phy. You will have to edit your at91rm9200.c to use this Phy instead of the default dm9161. I think it makes sense to include it in the main branch, since it is a free feature and it does not occupy space unless used. BR Kim

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[U-Boot-Users] POST
by Maximus 09 May '07

09 May '07

Hi, My hardware has an sd/mmc card. I need to write a few tests to check if the card is connected and working before loading linux. any ideas how one should go abt it?. are there any basic tests for mmc card?. any pointers?. Regards, Jo

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[U-Boot-Users] u-boot for Vertex4-based board.
by Leonid 30 Apr '07

30 Apr '07

Hi: I'm porting u-boot on Vertex-4 based board (with PPC405 inside); I'm trying use ml403 u-boot as example. I have first stage boot loader, taking my u-boot image from serial and loading it to SDRAM, u-boot is configured to boot from main memory. Several questions: 1) I'm using ELDK 3.1.1 as crosstool; which target should I choose: ppc_4xxFP or ppc_4xx? 2) My board unlike ML403 has UARTLITE for serial interface. Can I use serial_xuartlite.c from microblaze directory? Thanks, Leonid.

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[U-Boot-Users] [PATCH] simplify silent console
by Ladislav Michl 24 Apr '07

24 Apr '07

Wolfgang, silent console output is currently implemented by assigning nulldev as output device. This is a bit overcomplicated, since there is also GD_FLG_SILENT flag. Patch bellow tries to simplify silencing console by honouring GD_FLG_SILENT in console output functions, so there is no need to mess with output device. Comments? Best regards, ladis Signed-off-by: Ladislav Michl <ladis(a)linux-mips.org> CHANGELOG * Silent console code simplification. Patch by Ladislav Michl, 25 Jul 2006 diff --git a/common/console.c b/common/console.c index e9f23be..d8a0cb6 100644 --- a/common/console.c +++ b/common/console.c @@ -494,13 +494,7 @@ #ifdef CONFIG_SPLASH_SCREEN /* suppress all output if splash screen is enabled and we have a bmp to display */ if (getenv("splashimage") != NULL) - outputdev = search_device (DEV_FLAGS_OUTPUT, "nulldev"); -#endif - -#ifdef CONFIG_SILENT_CONSOLE - /* Suppress all output if "silent" mode requested */ - if (gd->flags & GD_FLG_SILENT) - outputdev = search_device (DEV_FLAGS_OUTPUT, "nulldev"); + gd->flags |= GD_FLG_SILENT; #endif /* Scan devices looking for input and output devices */ diff --git a/common/main.c b/common/main.c index ef28b3f..1ff3296 100644 --- a/common/main.c +++ b/common/main.c @@ -113,15 +113,17 @@ static __inline__ int abortboot(int boot u_int i; #ifdef CONFIG_SILENT_CONSOLE + int silent = 0; + if (gd->flags & GD_FLG_SILENT) { - /* Restore serial console */ - console_assign (stdout, "serial"); - console_assign (stderr, "serial"); + /* Restore console */ + gd->flags &= ~GD_FLG_SILENT; + silent = 1; } #endif # ifdef CONFIG_AUTOBOOT_PROMPT - printf (CONFIG_AUTOBOOT_PROMPT, bootdelay); + serial_printf (CONFIG_AUTOBOOT_PROMPT, bootdelay); # endif # ifdef CONFIG_AUTOBOOT_DELAY_STR @@ -199,14 +201,8 @@ # if DEBUG_BOOTKEYS # endif #ifdef CONFIG_SILENT_CONSOLE - if (abort) { - /* permanently enable normal console output */ - gd->flags &= ~(GD_FLG_SILENT); - } else if (gd->flags & GD_FLG_SILENT) { - /* Restore silent console */ - console_assign (stdout, "nulldev"); - console_assign (stderr, "nulldev"); - } + if (!abort && silent) + gd->flags |= GD_FLG_SILENT; #endif return abort; @@ -223,10 +219,12 @@ static __inline__ int abortboot(int boot int abort = 0; #ifdef CONFIG_SILENT_CONSOLE + int silent = 0; + if (gd->flags & GD_FLG_SILENT) { - /* Restore serial console */ - console_assign (stdout, "serial"); - console_assign (stderr, "serial"); + /* Restore output */ + silent = 1; + gd->flags &= ~GD_FLG_SILENT; } #endif @@ -275,14 +273,8 @@ # endif putc ('\n'); #ifdef CONFIG_SILENT_CONSOLE - if (abort) { - /* permanently enable normal console output */ - gd->flags &= ~(GD_FLG_SILENT); - } else if (gd->flags & GD_FLG_SILENT) { - /* Restore silent console */ - console_assign (stdout, "nulldev"); - console_assign (stderr, "nulldev"); - } + if (!abort && silent) + gd->flags |= GD_FLG_SILENT; #endif return abort;

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