On Tue, Aug 26, 2008 at 08:13:39PM -0700, Fundu wrote: >I have a PPC440GX based board. > >Do I need to reinitialize Peripheral Bank Configuration Registers (EBC0_B0CR-EBC0_B7CR) from the kernel ? >I'm quite sure that we don't, but just want to make sure. Because the problem >that i'm seeing strongly suggest that it's probably not accessible. Typically not. The kernel tends to rely on the EBC registers being properly programmed by the bootloader/firmware for the devices contained in it's banks. >Here's the problem, i'm getting "kernel access of bad > area" when i erase any of the upper 64mb out of 128mb flash region, surprisingly i can easily erase (all of the flash) from u-boot. which makes me ask the earlier question. > That sounds more like a mapping issue than an EBC config issue. Make sure the kernel is calling ioremap on the entire flash memory region. josh -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
