[POWERPC] Fix default clock for udbg_16550

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / udbg_16550.c

diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index 0835b4841dea41d8157fde5a7faa37f68a7aab12..2d17f2b8eda73323444208ed4744c0f04104e6e8 100644 (file)
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -81,10 +81,14 @@ static int udbg_550_getc(void)
 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) {