| /****************************************************************************/ |
| /* |
| * linux/include/asm-arm/arch-l7200/pmpcon.h |
| * |
| * Registers and helper functions for the L7200 Link-Up Systems |
| * DC/DC converter register. |
| * |
| * (C) Copyright 2000, S A McConnell (samcconn@cotw.com) |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive for |
| * more details. |
| */ |
| |
| /****************************************************************************/ |
| |
| #define PMPCON_OFF 0x00006000 /* Offset from IO_START_2. */ |
| |
| /* IO_START_2 and IO_BASE_2 are defined in hardware.h */ |
| |
| #define PMPCON_START (IO_START_2 + PMPCON_OFF) /* Physical address of reg. */ |
| #define PMPCON_BASE (IO_BASE_2 + PMPCON_OFF) /* Virtual address of reg. */ |
| |
| |
| #define PMPCON (*(volatile unsigned int *)(PMPCON_BASE)) |
| |
| #define PWM2_50CYCLE 0x800 |
| #define CONTRAST 0x9 |
| |
| #define PWM1H (CONTRAST) |
| #define PWM1L (CONTRAST << 4) |
| |
| #define PMPCON_VALUE (PWM2_50CYCLE | PWM1L | PWM1H) |
| |
| /* PMPCON = 0x811; // too light and fuzzy |
| * PMPCON = 0x844; |
| * PMPCON = 0x866; // better color poor depth |
| * PMPCON = 0x888; // Darker but better depth |
| * PMPCON = 0x899; // Darker even better depth |
| * PMPCON = 0x8aa; // too dark even better depth |
| * PMPCON = 0X8cc; // Way too dark |
| */ |
| |
| /* As CONTRAST value increases the greater the depth perception and |
| * the darker the colors. |
| */ |
