On Wed, 26 Sep 2012, Stephen Warren wrote: > In the Tegra case, by omitting uncompress.h, we lose more than just the > "Decompressing Linux..." message; uncompress.h contains code to parse > extract the platform's debug UART ID from data set up by the boot ROM > (since we have 5 UARTs), and pass this on to debug-macro.S. Let me tell you that this is totally evil. OMAP and Davinci are doing the same abuse. > Without uncompress.h running, debug-macro.S would either have to > hard-code a single UART ID (and different boards uses different UARTs, > which would make running a single kernel image across all Tegra > devices with earlyprintk enabled impossible) *or* we'd have to port > the UART ID extraction code to debug-macro.S too, Please do the later. That's the only sane solution. > which I don't fancy very much since that's assembly whereas > uncompress.h is C. Well, that's too bad. Time to sharpen your assembly skills. ;-) Nicolas -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
