video: add amba-clcd prime-cell

This adds support for the CLCD logic cell. It accepts precompiled
register values for specific configuration through a board-supplied
data structure.  It is used by the Nomadik nhk8815, added by a later
patch in this series.

Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/include/amba_clcd.h b/include/amba_clcd.h
new file mode 100644
index 0000000000..db80517e53
--- /dev/null
+++ b/include/amba_clcd.h
@@ -0,0 +1,77 @@
+/*
+ * Register definitions for the AMBA CLCD logic cell.
+ *
+ * derived from David A Rusling, although rearranged as a C structure
+ *     linux/include/asm-arm/hardware/amba_clcd.h -- Integrator LCD panel.
+ *
+ * Copyright (C) 2001 ARM Limited
+ *
+ * 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.
+ */
+
+/*
+ * CLCD Controller Internal Register addresses
+ */
+struct clcd_registers {
+	u32 tim0;	/* 0x00 */
+	u32 tim1;
+	u32 tim2;
+	u32 tim3;
+	u32 ubas;	/* 0x10 */
+	u32 lbas;
+#if !defined(CONFIG_ARCH_VERSATILE) && !defined(CONFIG_ARCH_REALVIEW)
+	u32 ienb;
+	u32 cntl;
+#else /* Someone rearranged these two registers on the Versatile */
+	u32 cntl;
+	u32 ienb;
+#endif
+	u32 stat;	/* 0x20 */
+	u32 intr;
+	u32 ucur;
+	u32 lcur;
+	u32 unused[0x74];	/* 0x030..0x1ff */
+	u32 palette[0x80];	/* 0x200..0x3ff */
+};
+
+/* Bit definition for TIM2 */
+#define TIM2_CLKSEL		(1 << 5)
+#define TIM2_IVS		(1 << 11)
+#define TIM2_IHS		(1 << 12)
+#define TIM2_IPC		(1 << 13)
+#define TIM2_IOE		(1 << 14)
+#define TIM2_BCD		(1 << 26)
+
+/* Bit definitions for control register */
+#define CNTL_LCDEN		(1 << 0)
+#define CNTL_LCDBPP1		(0 << 1)
+#define CNTL_LCDBPP2		(1 << 1)
+#define CNTL_LCDBPP4		(2 << 1)
+#define CNTL_LCDBPP8		(3 << 1)
+#define CNTL_LCDBPP16		(4 << 1)
+#define CNTL_LCDBPP16_565	(6 << 1)
+#define CNTL_LCDBPP24		(5 << 1)
+#define CNTL_LCDBW		(1 << 4)
+#define CNTL_LCDTFT		(1 << 5)
+#define CNTL_LCDMONO8		(1 << 6)
+#define CNTL_LCDDUAL		(1 << 7)
+#define CNTL_BGR		(1 << 8)
+#define CNTL_BEBO		(1 << 9)
+#define CNTL_BEPO		(1 << 10)
+#define CNTL_LCDPWR		(1 << 11)
+#define CNTL_LCDVCOMP(x)	((x) << 12)
+#define CNTL_LDMAFIFOTIME	(1 << 15)
+#define CNTL_WATERMARK		(1 << 16)
+
+/* u-boot specific: information passed by the board file */
+struct clcd_config {
+	struct clcd_registers *address;
+	u32			tim0;
+	u32			tim1;
+	u32			tim2;
+	u32			tim3;
+	u32			cntl;
+	unsigned long		pixclock;
+};