drivers/misc/ali512x.c

5  * SPDX-License-Identifier:	GPL-2.0+
10  *----------------------------------------------------------------------
12  * Sysgo Real-Time Solutions GmbH
13  * Klein-Winternheim, Germany
14  *----------------------------------------------------------------------
140 		/* huh? write 0xf2 twice - a typo in rolo  in ali512x_set_uart()
198  *  there may be some mis-understandings burried in here.
199  *  -- Daniel daniel@omicron.se)
201  * There are 22 CIO pins numbered
202  * 10-17
203  * 20-25
204  * 30-37
206  * 20-24 are dedicated CIO pins, the other 17 are muliplexed with
221  * CIO20     -
222  * CIO21     -
223  * CIO22     -
224  * CIO23     -
225  * CIO24     -
241  * The function selection registers are accessible under
246  * bit 1-0 CIO indirect registers port address select
252  * There are three CIO I/O register accessed via CIO index port and CIO data port
253  * 0x01     CIO 10-17 data
254  * 0x02     CIO 20-25 data (bits 7-6 unused)
255  * 0x03     CIO 30-37 data
266  * 7-4   Unused
316 	/* set all pins to input to start with */  in ali512x_set_cio()
334 	/* valid pins are 10-17, 20-25 and 30-37 */  in ali512x_cio_function()
393 	/* valid pins are 10-17, 20-25 and 30-37 */  in ali512x_cio_in()