> > "Schneider, Kolja" <kolja.schnei...@men.de> wrote on 2012/05/03 10:46:55: > > > > > > If you mean the BDI is trying to initialize things rather than leave the > > > > system in its default state, don't do that. > > > > > > Yes, trying to get there. > > > > > > > Easily done, just throw out everything in the [init] section. Or is this > > really just > > about BDI presence, as Scott suggested? > > I found the problem, u-boot is somewhat flawed, it requires > CONFIG_SYS_MONITOR_BASE > to be "base 2 even", must land on a 256K or 512K or 1024K address. I had > it to be 400K as I don't want burn >112 KB padding each time we burn an > image, debugging > takes time as it is. Will be extra fun when u-boot size is bigger than 512K :(
ehh, that should be on a 4MB boundary instead, meaning that CONFIG_SYS_MONITOR_BASE 0xeff80000 works but 0xeff8c000 don't > > Being able to separate the bootpg and the rest is one step to avoid burning > useless padding. > > It is this this code: > #if !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SECURE_BOOT) > /* create a temp mapping in AS=1 to the 4M boot window */ > lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@h > ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@l > > lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@h > ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_MONITOR_BASE, (MAS2_I|MAS2_G))@l > > /* The 85xx has the default boot window 0xff800000 - 0xffffffff */ > lis r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h > ori r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l > > Notice the hardcoded 0xffc00000, that is the culprit here. > > On a related matter, I believe that one should be able to have a minimal > emulator > config that allows you to both program flash efficiently and debug u-boot > via BDI/gdb. > I have always managed to do this before with our earlier freescale CPUs but > now > seems hard(impossible?) with the current u-boot design. It is a major > pain to change emul config each time you do the burn flash/debug cycle. > > Jocke > > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
