blob: 730056c194be92e7462fac1a0f339a1b7c493a53 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/****************************************************************************/
2/*
3 * linux/include/asm-arm/arch-l7200/pmpcon.h
4 *
5 * Registers and helper functions for the L7200 Link-Up Systems
6 * DC/DC converter register.
7 *
8 * (C) Copyright 2000, S A McConnell (samcconn@cotw.com)
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive for
12 * more details.
13 */
14
15/****************************************************************************/
16
17#define PMPCON_OFF 0x00006000 /* Offset from IO_START_2. */
18
19/* IO_START_2 and IO_BASE_2 are defined in hardware.h */
20
21#define PMPCON_START (IO_START_2 + PMPCON_OFF) /* Physical address of reg. */
22#define PMPCON_BASE (IO_BASE_2 + PMPCON_OFF) /* Virtual address of reg. */
23
24
25#define PMPCON (*(volatile unsigned int *)(PMPCON_BASE))
26
27#define PWM2_50CYCLE 0x800
28#define CONTRAST 0x9
29
30#define PWM1H (CONTRAST)
31#define PWM1L (CONTRAST << 4)
32
33#define PMPCON_VALUE (PWM2_50CYCLE | PWM1L | PWM1H)
34
35/* PMPCON = 0x811; // too light and fuzzy
36 * PMPCON = 0x844;
37 * PMPCON = 0x866; // better color poor depth
38 * PMPCON = 0x888; // Darker but better depth
39 * PMPCON = 0x899; // Darker even better depth
40 * PMPCON = 0x8aa; // too dark even better depth
41 * PMPCON = 0X8cc; // Way too dark
42 */
43
44/* As CONTRAST value increases the greater the depth perception and
45 * the darker the colors.
46 */