Hi Fei, On Wed, Apr 29, 2015 at 4:42 PM, WANG FEI <[email protected]> wrote: > Thanks, Meng Bin, for your big help. > > I'm not familiar with u-boot, so I even don't realize the BUILD_ROM flag > need to be changed, I just downloaded the u-boot-2015.04 source code and > build it with following instruction. > > $ make galileo_defconfig > $ make all > > > maybe I should do it again with BUILD_ROM flag. >
Yes, you need export BUILD_ROM=y before building u-boot.rom. > Back to the compiler issue, I just use the latest coreboot source code, I > don't know the details of the GCC compiler flag, but I think I should have a > close look into it, I do realize Quark SoC does not support MMX/SSE etc, so > maybe the default coreboot compiler should be modified for this special SoC. > Did you do any GCC compiler change when developing it on u-boot? What is > your Host O/S(Fedora/Ubuntu 32/64 bit?)? What is the GCC version you are > using? I don't think GCC compiler version matters. I've tested a GCC 4.7.2 compiler from a 64-bit host (cross-compiling) and a GCC 4.6.1 from a 32-bit host (native build). Both work fine. > -Fei > > On Tue, Apr 28, 2015 at 10:40 AM, Bin Meng <[email protected]> wrote: >> >> Hi Fei, >> >> On Tue, Apr 28, 2015 at 7:36 AM, WANG FEI <[email protected]> wrote: >> > Meng Bin, >> > >> > I remember few weeks I've built a u-boot binary for Galileo, but I >> > remember >> > the generated u-boot.bin is not 256/512/1024/2048K, it possible is about >> > 384K, is it correct? I want to use the u-boot you built as a reference. >> > >> >> No, it should be 1MB. Did you turn on BUILD_ROM as documented in >> README.x86? >> >> > I've successfully built a coreboot image with CAR enabled, console >> > function >> > only enabled partly due to some issue, it looks the "va_arg" in printf() >> > has >> > something wrong, I guess it's a compiler issue - maybe Quark SoC does >> > not >> > support some special instruments. Did you get the similar issue when >> > porting >> > u-boot? >> > >> >> The Quark integrates a CPU which has the 486 ISA. What compiler flag >> did you pass when you build coreboot? Regards, Bin _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
