[PATCH] powerpc: Fix default clock for udbg_16550
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2006-07-04 04:11:30
This patch makes it possible to provide 0 as the clock value for udbg_16550, making it default to the standard 1.8432Mhz clock Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Index: linux-irq-work/arch/powerpc/kernel/udbg_16550.c ===================================================================
--- linux-irq-work.orig/arch/powerpc/kernel/udbg_16550.c 2006-07-04 13:01:13.000000000 +1000
+++ linux-irq-work/arch/powerpc/kernel/udbg_16550.c 2006-07-04 13:05:59.000000000 +1000@@ -81,10 +81,14 @@ void udbg_init_uart(void __iomem *comport, unsigned int speed, unsigned int clock) { - unsigned int dll, base_bauds = clock / 16; + unsigned int dll, base_bauds; + if (clock == 0) + clock = 1843200; if (speed == 0) speed = 9600; + + base_bauds = clock / 16; dll = base_bauds / speed; if (comport) {