From: Benjamin Herrenschmidt Date: Tue, 4 Jul 2006 04:11:23 +0000 (+1000) Subject: [POWERPC] Fix default clock for udbg_16550 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e70e943847bdae13175bf3a8bca6328e369de90a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git [POWERPC] Fix default clock for udbg_16550 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 Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c index 0835b4841dea..2d17f2b8eda7 100644 --- 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) {