2 Commits

Author	SHA1	Message	Date
Marcel Moolenaar	ffc08b2147	Add a MacIO bus attachment. The Z8530 as present in the Mac needs ... a different register shift and is fed by a different clock than we use for UltraSPARC hardware. To deal with this, the regshft and rclk fields in the class structure are removed and bus frontends now pass the right regshft and rclk to the probe function where they're put in the BAS and passed in to subordinate drivers.	2006-04-01 04:51:56 +00:00
Marcel Moolenaar	6174e6ed12	Add scc(4), a driver for serial communications controllers. These ... controllers typically have multiple channels and support a number of serial communications protocols. The scc(4) driver is itself an umbrella driver that delegates the control over each channel and mode to a subordinate driver (like uart(4)). The scc(4) driver supports the Siemens SAB 82532 and the Zilog Z8530 and replaces puc(4) for these devices.	2006-03-30 18:33:22 +00:00