/****************************************************************************/ /* * 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. */