Add ATMEL LCD driver

This patch adds support for the ATMEL LCDC driver which is used on some
AT91 and AVR platforms.

Is has been tested with the AT91CAP9ADK, AT91SAM9261EK, AT91SAM9263EK and
AT91SAM9RLEK boards. Adaptation for AVR32 should probably be easy.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 177 insertions, 0 deletions

diff --git a/include/atmel_lcdc.h b/include/atmel_lcdc.h
new file mode 100644
index 000000000..73dd8f769
--- /dev/null
+++ b/include/atmel_lcdc.h
@@ -0,0 +1,177 @@
+/*
+ *  Header file for AT91/AT32 LCD Controller
+ *
+ *  Data structure and register user interface
+ *
+ *  Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef __ATMEL_LCDC_H__
+#define __ATMEL_LCDC_H__
+
+#define ATMEL_LCDC_DMABADDR1	0x00
+#define ATMEL_LCDC_DMABADDR2	0x04
+#define ATMEL_LCDC_DMAFRMPT1	0x08
+#define ATMEL_LCDC_DMAFRMPT2	0x0c
+#define ATMEL_LCDC_DMAFRMADD1	0x10
+#define ATMEL_LCDC_DMAFRMADD2	0x14
+
+#define ATMEL_LCDC_DMAFRMCFG	0x18
+#define	ATMEL_LCDC_FRSIZE	(0x7fffff <<  0)
+#define	ATMEL_LCDC_BLENGTH_OFFSET	24
+#define	ATMEL_LCDC_BLENGTH	(0x7f     << ATMEL_LCDC_BLENGTH_OFFSET)
+
+#define ATMEL_LCDC_DMACON	0x1c
+#define	ATMEL_LCDC_DMAEN	(0x1 << 0)
+#define	ATMEL_LCDC_DMARST	(0x1 << 1)
+#define	ATMEL_LCDC_DMABUSY	(0x1 << 2)
+#define		ATMEL_LCDC_DMAUPDT	(0x1 << 3)
+#define		ATMEL_LCDC_DMA2DEN	(0x1 << 4)
+
+#define ATMEL_LCDC_DMA2DCFG	0x20
+#define		ATMEL_LCDC_ADDRINC_OFFSET	0
+#define		ATMEL_LCDC_ADDRINC		(0xffff)
+#define		ATMEL_LCDC_PIXELOFF_OFFSET	24
+#define		ATMEL_LCDC_PIXELOFF		(0x1f << 24)
+
+#define ATMEL_LCDC_LCDCON1	0x0800
+#define	ATMEL_LCDC_BYPASS	(1     <<  0)
+#define	ATMEL_LCDC_CLKVAL_OFFSET	12
+#define	ATMEL_LCDC_CLKVAL	(0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
+#define	ATMEL_LCDC_LINCNT	(0x7ff << 21)
+
+#define ATMEL_LCDC_LCDCON2	0x0804
+#define	ATMEL_LCDC_DISTYPE	(3 << 0)
+#define		ATMEL_LCDC_DISTYPE_STNMONO	(0 << 0)
+#define		ATMEL_LCDC_DISTYPE_STNCOLOR	(1 << 0)
+#define		ATMEL_LCDC_DISTYPE_TFT		(2 << 0)
+#define	ATMEL_LCDC_SCANMOD	(1 << 2)
+#define		ATMEL_LCDC_SCANMOD_SINGLE	(0 << 2)
+#define		ATMEL_LCDC_SCANMOD_DUAL		(1 << 2)
+#define	ATMEL_LCDC_IFWIDTH	(3 << 3)
+#define		ATMEL_LCDC_IFWIDTH_4		(0 << 3)
+#define		ATMEL_LCDC_IFWIDTH_8		(1 << 3)
+#define		ATMEL_LCDC_IFWIDTH_16		(2 << 3)
+#define	ATMEL_LCDC_PIXELSIZE	(7 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_1		(0 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_2		(1 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_4		(2 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_8		(3 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_16		(4 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_24		(5 << 5)
+#define		ATMEL_LCDC_PIXELSIZE_32		(6 << 5)
+#define	ATMEL_LCDC_INVVD	(1 << 8)
+#define		ATMEL_LCDC_INVVD_NORMAL		(0 << 8)
+#define		ATMEL_LCDC_INVVD_INVERTED	(1 << 8)
+#define	ATMEL_LCDC_INVFRAME	(1 << 9 )
+#define		ATMEL_LCDC_INVFRAME_NORMAL	(0 << 9)
+#define		ATMEL_LCDC_INVFRAME_INVERTED	(1 << 9)
+#define	ATMEL_LCDC_INVLINE	(1 << 10)
+#define		ATMEL_LCDC_INVLINE_NORMAL	(0 << 10)
+#define		ATMEL_LCDC_INVLINE_INVERTED	(1 << 10)
+#define	ATMEL_LCDC_INVCLK	(1 << 11)
+#define		ATMEL_LCDC_INVCLK_NORMAL	(0 << 11)
+#define		ATMEL_LCDC_INVCLK_INVERTED	(1 << 11)
+#define	ATMEL_LCDC_INVDVAL	(1 << 12)
+#define		ATMEL_LCDC_INVDVAL_NORMAL	(0 << 12)
+#define		ATMEL_LCDC_INVDVAL_INVERTED	(1 << 12)
+#define	ATMEL_LCDC_CLKMOD	(1 << 15)
+#define		ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY	(0 << 15)
+#define		ATMEL_LCDC_CLKMOD_ALWAYSACTIVE	(1 << 15)
+#define	ATMEL_LCDC_MEMOR	(1 << 31)
+#define		ATMEL_LCDC_MEMOR_BIG		(0 << 31)
+#define		ATMEL_LCDC_MEMOR_LITTLE		(1 << 31)
+
+#define ATMEL_LCDC_TIM1		0x0808
+#define	ATMEL_LCDC_VFP		(0xffU <<  0)
+#define	ATMEL_LCDC_VBP_OFFSET		8
+#define	ATMEL_LCDC_VBP		(0xffU <<  ATMEL_LCDC_VBP_OFFSET)
+#define	ATMEL_LCDC_VPW_OFFSET		16
+#define	ATMEL_LCDC_VPW		(0x3fU << ATMEL_LCDC_VPW_OFFSET)
+#define	ATMEL_LCDC_VHDLY_OFFSET		24
+#define	ATMEL_LCDC_VHDLY	(0xfU  << ATMEL_LCDC_VHDLY_OFFSET)
+
+#define ATMEL_LCDC_TIM2		0x080c
+#define	ATMEL_LCDC_HBP		(0xffU  <<  0)
+#define	ATMEL_LCDC_HPW_OFFSET		8
+#define	ATMEL_LCDC_HPW		(0x3fU  <<  ATMEL_LCDC_HPW_OFFSET)
+#define	ATMEL_LCDC_HFP_OFFSET		21
+#define	ATMEL_LCDC_HFP		(0x7ffU << ATMEL_LCDC_HFP_OFFSET)
+
+#define ATMEL_LCDC_LCDFRMCFG	0x0810
+#define	ATMEL_LCDC_LINEVAL	(0x7ff <<  0)
+#define	ATMEL_LCDC_HOZVAL_OFFSET	21
+#define	ATMEL_LCDC_HOZVAL	(0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)
+
+#define ATMEL_LCDC_FIFO		0x0814
+#define	ATMEL_LCDC_FIFOTH	(0xffff)
+
+#define ATMEL_LCDC_MVAL		0x0818
+
+#define ATMEL_LCDC_DP1_2	0x081c
+#define ATMEL_LCDC_DP4_7	0x0820
+#define ATMEL_LCDC_DP3_5	0x0824
+#define ATMEL_LCDC_DP2_3	0x0828
+#define ATMEL_LCDC_DP5_7	0x082c
+#define ATMEL_LCDC_DP3_4	0x0830
+#define ATMEL_LCDC_DP4_5	0x0834
+#define ATMEL_LCDC_DP6_7	0x0838
+#define	ATMEL_LCDC_DP1_2_VAL	(0xff)
+#define	ATMEL_LCDC_DP4_7_VAL	(0xfffffff)
+#define	ATMEL_LCDC_DP3_5_VAL	(0xfffff)
+#define	ATMEL_LCDC_DP2_3_VAL	(0xfff)
+#define	ATMEL_LCDC_DP5_7_VAL	(0xfffffff)
+#define	ATMEL_LCDC_DP3_4_VAL	(0xffff)
+#define	ATMEL_LCDC_DP4_5_VAL	(0xfffff)
+#define	ATMEL_LCDC_DP6_7_VAL	(0xfffffff)
+
+#define ATMEL_LCDC_PWRCON	0x083c
+#define	ATMEL_LCDC_PWR		(1    <<  0)
+#define	ATMEL_LCDC_GUARDT_OFFSET	1
+#define	ATMEL_LCDC_GUARDT	(0x7f <<  ATMEL_LCDC_GUARDT_OFFSET)
+#define	ATMEL_LCDC_BUSY		(1    << 31)
+
+#define ATMEL_LCDC_CONTRAST_CTR	0x0840
+#define	ATMEL_LCDC_PS		(3 << 0)
+#define		ATMEL_LCDC_PS_DIV1		(0 << 0)
+#define		ATMEL_LCDC_PS_DIV2		(1 << 0)
+#define		ATMEL_LCDC_PS_DIV4		(2 << 0)
+#define		ATMEL_LCDC_PS_DIV8		(3 << 0)
+#define	ATMEL_LCDC_POL		(1 << 2)
+#define		ATMEL_LCDC_POL_NEGATIVE		(0 << 2)
+#define		ATMEL_LCDC_POL_POSITIVE		(1 << 2)
+#define	ATMEL_LCDC_ENA		(1 << 3)
+#define		ATMEL_LCDC_ENA_PWMDISABLE	(0 << 3)
+#define		ATMEL_LCDC_ENA_PWMENABLE	(1 << 3)
+
+#define ATMEL_LCDC_CONTRAST_VAL	0x0844
+#define	ATMEL_LCDC_CVAL	(0xff)
+
+#define ATMEL_LCDC_IER		0x0848
+#define ATMEL_LCDC_IDR		0x084c
+#define ATMEL_LCDC_IMR		0x0850
+#define ATMEL_LCDC_ISR		0x0854
+#define ATMEL_LCDC_ICR		0x0858
+#define	ATMEL_LCDC_LNI		(1 << 0)
+#define	ATMEL_LCDC_LSTLNI	(1 << 1)
+#define	ATMEL_LCDC_EOFI		(1 << 2)
+#define	ATMEL_LCDC_UFLWI	(1 << 4)
+#define	ATMEL_LCDC_OWRI		(1 << 5)
+#define	ATMEL_LCDC_MERI		(1 << 6)
+
+#define ATMEL_LCDC_LUT(n)	(0x0c00 + ((n)*4))
+
+#endif /* __ATMEL_LCDC_H__ */