pmpcon.h
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- /****************************************************************************/
- /*
- * 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.
- */