- /* Set baudrate - FIXME for bus speeds != CPU/2 */
- *uart_clk = ((CFG_HZ/(CONFIG_BAUDRATE * 64)));
+ /* sd is system clock divisor */
+ /* see section 10.4.5 in au1550 datasheet */
+ sd = (*sys_powerctrl & 0x03) + 2;
+
+ /* calulate 2x baudrate and round */
+ divisorx2 = ((CFG_HZ/(sd * 16 * CONFIG_BAUDRATE)));
+
+ if (divisorx2 & 0x01)
+ divisorx2 = divisorx2 + 1;
+
+ *uart_clk = divisorx2 / 2;