July 2006 - U-Boot

[U-Boot-Users] extending u-boot
by Maximus 17 Jul '06

17 Jul '06

Hi, u-boot (boot loader) size is limited by the size of the first sectors. I want to extend u-boot - say i would like to have my own tests that need to be executed when i give command. There are ONLY 2 ways of doing it - AFAIK 1) include the test code (commands) as a part of u-boot 2) Download the test cases as a part of an app and run it using tftpboot or serial port download. If i try to include all the test cases as part of u-boot. the size becomes a concern if the number of tests are more. If we take the second case, can this app access the serial port/drivers. How can this be achieved?. if yes, What will be the state of u-boot when this app is running. wont it also try to read from the serial port?. Is there any example of such an application?. Regards, Jo

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[U-Boot-Users] problems with spartan3, spartan2 and virtex2 relocation of null pointers
by Andrew Dyer 16 Jul '06

16 Jul '06

I notice that in several places the spartan2/3 and virtex2 download code tests the fn->pre and fn->post pointers for a null and skips calling them if they are null. The relocation code that moves the pointers never checks them for null and happily adds reloc_offset to the null pointers making non-null ones and leading to a crash when the code tries to call them. Does it make more sense to remove the checks and always call the functions (assuming everybody using these bits has defined at least a stub for these), or does it make more sense to test the pointers at reloc time and fix all the reloc functions? -- Hardware, n.: The parts of a computer system that can be kicked.

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[U-Boot-Users] u-boot size reduction tips!
by Ram 16 Jul '06

16 Jul '06

Hi, I am trying to reduce the size of the bootloader and my own utilities. Firstly i tried understanding the flow of u-boot. I tried removing the networking support. i removed the NETWORKING related #defines in my config file omap5912osk.h Then i did #define CONFIG_COMMANDS (CONFIG_CMD_DFL & ~CFG_CMD_NET) Then i changed the makefiles to avoid making libnet.a However, on compiling i do get linker errors. i need to go and manually comment out code that is referring to getenv_IPaddr and so on. Not sure if this is way we remove the features in u-boot. I just want a minimum bootloader + serial port: which translates to: 1) basic bootloading 2) serial port driver. 3) Enabling serial port commands How does one go about it?. Any guidelines?. Any advices or pointers?. Regards, sriram

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[U-Boot-Users] downloading image through serial port
by Maximus 16 Jul '06

16 Jul '06

Hi, how does one download uImage (kernel) using only serial port. and giving control to that?. Regard, Jo

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[U-Boot-Users] adding support to new board
by Maximus 16 Jul '06

16 Jul '06

Hi, Is there any document (step by step) approach on how to add u-boot support to a new board? any advices, Regards, jo

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[U-Boot-Users] pending patches
by Kim Phillips 14 Jul '06

14 Jul '06

Wolfgang, we have some patches that we would like to go on top of patches previously sent to the list, but that are not in your u-boot git tree (in particular, Matthew McClintock's 2006-06-27 patches titled "MPC85xx platform updates"). However, we can also send them to apply to the top of your u-boot git tree. What would you like us to do with them? Kim

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Re: [U-Boot-Users] [DNX#2006071442000032] [PATCH] Fix out-of-r [...]
by U-Boot patch tracking system 14 Jul '06

14 Jul '06

Dear Mr. U. Boot, thank you for your contribution to the U-Boot project. Your e-mail was registered at our system under the ticket number [DNX#2006071442000032]. Your U-Boot support team Powered by OTRS (http://otrs.org/)

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Re: [U-Boot-Users] [DNX#2006071442000032] [PATCH] Fix out-of-range operand error in mpc83xx/ [...]
by DENX Support System 14 Jul '06

14 Jul '06

Hello list, inside the automatic U-Boot patch tracking system a new ticket [DNX#2006071442000032] was created: <snip> > CHANGELOG > > * Fixed syntax error in function init_e300_core() of mpc83xx/start.S if > CONFIG_WATCHDOG is defined. An out-of-range constant was changed to > its > negative equivalent to make the compiler happy. > > Signed-off-by: Timur Tabi <timur(a)freescale.com> > > --- > > cpu/mpc83xx/start.S | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > 482af05a0aa630b1380b332804d491ed01149815 > diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S > index 6e02cce..0ca4f4f 100644 > --- a/cpu/mpc83xx/start.S > +++ b/cpu/mpc83xx/start.S > @@ -458,7 +458,7 @@ init_e300_core: /* time t 10 */ > > li r4, 0x556C > sth r4, SWSRR@l(r3) > - li r4, 0xAA39 > + li r4, -0x55C7 /* Equivalent to 0xAA39 */ > sth r4, SWSRR@l(r3) > #else > /* Disable Wathcdog */ > -- > 1.2.4 </snip> Your U-Boot support team

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[U-Boot-Users] [PATCH] Fix out-of-range operand error in mpc83xx/start.S
by Timur Tabi 14 Jul '06

14 Jul '06

CHANGELOG * Fixed syntax error in function init_e300_core() of mpc83xx/start.S if CONFIG_WATCHDOG is defined. An out-of-range constant was changed to its negative equivalent to make the compiler happy. Signed-off-by: Timur Tabi <timur(a)freescale.com> --- cpu/mpc83xx/start.S | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) 482af05a0aa630b1380b332804d491ed01149815 diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S index 6e02cce..0ca4f4f 100644 --- a/cpu/mpc83xx/start.S +++ b/cpu/mpc83xx/start.S @@ -458,7 +458,7 @@ init_e300_core: /* time t 10 */ li r4, 0x556C sth r4, SWSRR@l(r3) - li r4, 0xAA39 + li r4, -0x55C7 /* Equivalent to 0xAA39 */ sth r4, SWSRR@l(r3) #else /* Disable Wathcdog */ -- 1.2.4

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Re: [U-Boot-Users] [DNX#2006071442000014] [PATCH] Bugfix for S3C24x0 usb driver
by DENX Support System 14 Jul '06

14 Jul '06

Hello list, inside the automatic U-Boot patch tracking system a new ticket [DNX#2006071442000014] was created: <snip> > Hello > > According to the S3C2410 user's manual, the clock enabling/disabling for > the USB host controller is done by bit 6, not 4 (which is the NAND > controller). The attach patch fixes this error. > > ChangeLog: > * Fix incorrect bit number in s3c24x0/usb_ohci.c > > Dave </snip> Your U-Boot support team

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