May 2003 - U-Boot

RE: [U-Boot-Users] Loads function and flow control.
by Christophe.LINDHEIMER＠fr.thalesgroup.com 27 May '03

27 May '03

> > All this is documented in detail in http://www.denx.de/re/DPLG.html > Is there an easy way to read this doc when - there is only on PC connected on the web for 40 persons in the company. - I can't install any soft on this PC to suck the whole doc. however I have just printed chapter 3 and it looks fine.. Thanks. Chris

2 1

RE: [U-Boot-Users] Loads function and flow control.
by Christophe.LINDHEIMER＠fr.thalesgroup.com 27 May '03

27 May '03

Hi. I have just installed the great rpm uucp to use cu. so I make cu -s 9600 -l ttyS1 --nostop. Unfortunately, it seems that what I type isn't sent to my board !! It works fine with minicom. It seems that it is because of the flow control. In minicom I choose no software and no hardware flow control to make it work. How can I do the same with cu ? My serial cable is only RX TX & GND. Thanks Chris

2 1

[U-Boot-Users] Patch to drivers/pci.c
by Donald White 27 May '03

27 May '03

Following is a patch to drivers/pci.c. It fixes the calculation of the base address in pci_hose_config_device(). diff -urN u-boot-0.3.0/drivers/pci.c u-boot-0.3.0-zpc1900/drivers/pci.c --- u-boot-0.3.0/drivers/pci.c Thu Feb 27 17:19:49 2003 +++ u-boot-0.3.0-zpc1900/drivers/pci.c Tue May 20 20:51:35 2003 @@ -329,9 +329,12 @@ if (bar_response & PCI_BASE_ADDRESS_SPACE) { bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1; - bar_value = io; + /* round up region base address to a multiple of size */ io = ((io - 1) | (bar_size - 1)) + 1; + bar_value = io; + /* compute new region base address */ + io = io + bar_size; } else { @@ -340,9 +343,12 @@ found_mem64 = 1; bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1; - bar_value = mem; + /* round up region base address to multiple of size */ mem = ((mem - 1) | (bar_size - 1)) + 1; + bar_value = mem; + /* compute new region base address */ + mem = mem + bar_size; } /* Write it out and update our limit */

2 1

RE: [U-Boot-Users] Loads function and flow control.
by Christophe.LINDHEIMER＠fr.thalesgroup.com 27 May '03

27 May '03

> > Well, I use a serial line at 9600 Bauds. > > :-( > > > I use minicom to send commands to UBoot. > > > > Once the loads is done I make a > > cat hello_world.srec > /dev/ttyS1 > > in order not to use minicom to keep Wolfgang in good mood > for the whole week > > :-)) > > Have you ever seen me in bad mood? This is a _very_ uncommon state > for me. > > > The first data are corrects but UBoot aborts the download > after a few > > lines... > > If you _must_ use s-records, use "cu". > > Better avoid s-reocrds and use kermit binary protocol ("loadb"). > > Even better avoid serial downloads completely and use TFTP. > Well, it should be with a lot of pleasure but hardware people have "forgotten" ethernet link on my board :(( Chris

2 1

[U-Boot-Users] Shared serial driver
by Marc Singer 27 May '03

27 May '03

I now remember why there is an x86 specific serial driver. Unlike every other chip, the x86 has a separately mapped I/O port address space. Sharing the driver will require some inline functions or macros to bridge the gap. If continue to take from the Linux kernel model, there are CPU specific macros to read and write in the IO space. I also seem to recall that the spacing of IO addresses is different on each CPU. Some are forced to be 32 bit aligned while others may be word aligned. There is a little bit of work to fit all of the pieces together. Fortunately, the 16550 driver is simple enough to be a reliable test bed. Are you good with this path? Cheers.

2 1

[U-Boot-Users] Doubt on Kernel Linking
by Rupesh S 27 May '03

27 May '03

Hi, I work with MPC823FADS board. I'm using u-boot as the bootloader in it. The RAM memroy map as seen with the "bdinfo" command in u-boot says.. 0x00000000 to 0x00800000. I'm trying to boot linux kernel ( linux-2.4.4-2002-10-06 from DENX) on my board. By default , the kernel is build at 0xC0000000. (This memory is not mapped by u-boot). Do I have to change the kernel linking to a address that is within, 0x00000000 and 0x00800000 ? Rupesh

3 10

[U-Boot-Users] Sharing the serial driver
by Marc Singer 26 May '03

26 May '03

There appears to be a serial driver in most every BSP. Are you willing to merge a driver than can be shared among CPUs and boards?

2 1

[U-Boot-Users] Loads function and flow control.
by Christophe.LINDHEIMER＠fr.thalesgroup.com 26 May '03

26 May '03

Hi. I am just starting to work with loads function. Is there any mechanism for software flow control ( XON, XOFF ) ? I have seen some define for loadb bu nothing for loads... It seems that loads works fine when I download small files but get lost with big ones. So I fear a flow control problem. What is the problem with minicom for loads ? I think that loads just expect to receive ascii data. Is it wrong to send srec file using ALT S in minicom ( and choosing ascii data ) ? Chris

5 10

RE: [U-Boot-Users] Loads function and flow control.
by Christophe.LINDHEIMER＠fr.thalesgroup.com 26 May '03

26 May '03

Well, I use a serial line at 9600 Bauds. I use minicom to send commands to UBoot. Once the loads is done I make a cat hello_world.srec > /dev/ttyS1 in order not to use minicom to keep Wolfgang in good mood for the whole week :-)) The first data are corrects but UBoot aborts the download after a few lines... => mw 0x4000 0 200 => loads ## Ready for S-Record download ... S013000068656C6C6F5F776F726C642E7372656376 S214040000000181749421FFE07C0802A6BF61000C05 S21404001090010024480000057FC802A6801EFFE861 S2140400207FC0F2147C7B1B78807E80007C9F2378C4 S214040030480000B1807E80047F64DB78480000A519 S2140400403B8000007C1CD8004181003080BF00004B S2140400503BFF00042C0500004082000880BE800898 S214040060807E800C7F84E378480000793B9C000106 ## S-Record download abortedE80104800006534 => 4204E8000208B Unknown command '4204E8000208B' - try 'help' => => 440000024E800020380000024400000273 Unknown command '440000024E800020380000024400000273' - try 'help' => => 420380000055A Unknown command '420380000055A' - try 'help' => => 080002038000007440000024E80002085 Unknown command '080002038000007440000024E80002085' - try 'help' => => 000A440000020A Unknown command '000A440000020A' - try 'help' => => 60000008B Unknown command '60000008B' - try 'help' => => 21545B25645D203D20222573220A00000000ED Unknown command '21545B25645D203D20222573220A00000000ED' - try 'help' => => 72E2E2081 Unknown command '72E2E2081' - try 'help' => => 4144000501640005015015 Unknown command '4144000501640005015015' - try 'help' => => md 0x40000 00040000: 00018174 9421ffe0 7c0802a6 bf61000c ...t.!..|....a.. 00040010: 90010024 48000005 7fc802a6 801effe8 ...$H........... 00040020: 7fc0f214 7c7b1b78 807e8000 7c9f2378 ....|{.x.~..|.#x 00040030: 480000b1 807e8004 7f64db78 480000a5 H....~...d.xH... 00040040: 3b800000 7c1cd800 41810030 80bf0000 ;...|...A..0.... 00040050: 3bff0004 2c050000 40820008 80be8008 ;...,...@....... 00040060: 807e800c 7f84e378 48000079 3b9c0001 .~.....xH..y;... 00040070: 00000000 00000000 00000000 00000000 ................ 00040080: 00000000 00000000 00000000 00000000 ................ 00040090: 00000000 00000000 00000000 00000000 ................ 000400a0: 00000000 00000000 00000000 00000000 ................ 000400b0: 00000000 00000000 00000000 00000000 ................ 000400c0: 00000000 00000000 00000000 00000000 ................ 000400d0: 00000000 00000000 00000000 00000000 ................ 000400e0: 00000000 00000000 00000000 00000000 ................ 000400f0: 00000000 00000000 00000000 00000000 ................

2 1

[U-Boot-Users] U-boot +BDI2000 code downloading
by Karoliya, Abhishek 24 May '03

24 May '03

Hi , I am trying to port u-Boot to a custom 8245 board using BDI2000 in the progress . I tried using the facility of BDI to download code {U-boot.bin} using the HOST section of the configuration file {sp8240.cfg}. For this purpose do I have to make changes to address where u-boot is linked or what offset should I download. Just wondering how would BDI can place the code in memory when the RAM interface has been configured {timings etc}. Also if I burn the Flash using BDI for u-boot.bin should I have to give address 0xfff00000 or 0xfff0 0100. thanks Abhi

1 0