commit d2b310b0234c ("ARM: debug: Use generic 8250 debug_ll for omap2 and omap3/4/5 common uarts") commit fc23beb8a577 ("ARM: debug: Use generic 8250 debug_ll for omap3/4/5")
switched to generic 8250 debug_ll code which seems to be incompatible with at least OMAP5 boards (OMAP5EVM, Pyra) if CONFIG_DEBUG_LL is still enabled in some legacy defconfig. Since this is very hard to relate to these patches and difficult to identify, let's have the compiler emit a warning.
Signed-off-by: H. Nikolaus Schaller hns@goldelico.com --- arch/arm/include/debug/omap2plus.S | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/include/debug/omap2plus.S b/arch/arm/include/debug/omap2plus.S index 192a7583999c..3e7ea21cde2a 100644 --- a/arch/arm/include/debug/omap2plus.S +++ b/arch/arm/include/debug/omap2plus.S @@ -12,6 +12,10 @@
#include <linux/serial_reg.h>
+#if defined(CONFIG_DEBUG_LL) +#warning Please disable CONFIG_DEBUG_LL and enable CONFIG_SERIAL_EARLYCON or OMAP5 devices will not boot +#endif + /* External port on Zoom2/3 */ #define ZOOM_UART_BASE 0x10000000 #define ZOOM_UART_VIRT 0xfa400000