1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/mach-l7200/include/mach/pmpcon.h b/arch/arm/mach-l7200/include/mach/pmpcon.h
new file mode 100644
index 0000000..3959871
--- /dev/null
+++ b/arch/arm/mach-l7200/include/mach/pmpcon.h
@@ -0,0 +1,46 @@
+/****************************************************************************/
+/*
+ *  arch/arm/mach-l7200/include/mach/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.
+ */