This series allows a Tegra zImage to automatically select the UART to use for the zImage decompressor and early printk, based on information from the bootloader. The code scans each UART, looking for one that is clocked, is out of reset, and that the bootloader has written 'D' (for 'D'ebug) to the scratch register. At present, the ChromiumOS branch of U-Boot sets up UARTs in this way. If this patch is accepted into the kernel, I'll upstream the U-Boot change to mainline U-Boot. This is important, since different boards use different UARTs, and it's nice not to have to configure the kernel differently when switching boards. This patch series depends on patch "[PATCH V2] arm/tegra: Support Tegra30 in decompressor UART setup" for context. Doug Anderson (2): ARM: tegra: Introduce define DEBUG_UART_SHIFT ARM: tegra: uncompress.h: Store UART address in a variable Stephen Warren (2): ARM: tegra: uncompress.h: Choose a UART at runtime ARM: tegra: Pass uncompress.h UART selection to DEBUG_LL arch/arm/mach-tegra/common.c | 17 ++++ arch/arm/mach-tegra/include/mach/debug-macro.S | 87 +++++++++++++++++--- arch/arm/mach-tegra/include/mach/uncompress.h | 108 +++++++++++++++++++++--- 3 files changed, 190 insertions(+), 22 deletions(-) -- 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
