[PATCH] imxfb: Add Freescale i.MX framebuffer driver

This patch adds support for the framebuffer on the freescale i.MX SOC
architecture.  The driver has been tested on the mx1ads board, the pimx1 board
and another custom board with different displays.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/Kconfig

@@ -198,6 +198,14 @@ config FB_SA1100
 	  If you plan to use the LCD display with your SA-1100 system, say
 	  Y here.
 
+config FB_IMX
+	tristate "Motorola i.MX LCD support"
+	depends on FB && ARM && ARCH_IMX
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	select FB_SOFT_CURSOR
+
 config FB_CYBER2000
 	tristate "CyberPro 2000/2010/5000 support"
 	depends on FB && PCI && (BROKEN || !SPARC64)

drivers/video/Makefile

@@ -90,6 +90,7 @@ obj-$(CONFIG_FB_PMAGB_B)	  += pmagb-b-fb.o
 obj-$(CONFIG_FB_MAXINE)		  += maxinefb.o
 obj-$(CONFIG_FB_TX3912)		  += tx3912fb.o
 obj-$(CONFIG_FB_S1D13XXX)	  += s1d13xxxfb.o
+obj-$(CONFIG_FB_IMX)              += imxfb.o
 
 # Platform or fallback drivers go here
 obj-$(CONFIG_FB_VESA)             += vesafb.o

drivers/video/imxfb.h

+/*
+ * linux/drivers/video/imxfb.h
+ *
+ *  Freescale i.MX Frame Buffer device driver
+ *
+ *  Copyright (C) 2004 S.Hauer, Pengutronix
+ *
+ *  Copyright (C) 1999 Eric A. Thomas
+ *   Based on acornfb.c Copyright (C) Russell King.
+ *
+ * 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.
+ */
+
+/*
+ * These are the bitfields for each
+ * display depth that we support.
+ */
+struct imxfb_rgb {
+	struct fb_bitfield	red;
+	struct fb_bitfield	green;
+	struct fb_bitfield	blue;
+	struct fb_bitfield	transp;
+};
+
+#define RGB_16	(0)
+#define RGB_8	(1)
+#define NR_RGB	2
+
+struct imxfb_info {
+	struct device		*dev;
+	struct imxfb_rgb	*rgb[NR_RGB];
+
+	u_int			max_bpp;
+	u_int			max_xres;
+	u_int			max_yres;
+
+	/*
+	 * These are the addresses we mapped
+	 * the framebuffer memory region to.
+	 */
+	dma_addr_t		map_dma;
+	u_char *		map_cpu;
+	u_int			map_size;
+
+	u_char *		screen_cpu;
+	dma_addr_t		screen_dma;
+	u_int			palette_size;
+
+	dma_addr_t		dbar1;
+	dma_addr_t		dbar2;
+
+	u_int			pcr;
+	u_int			pwmr;
+	u_int			lscr1;
+	u_int			cmap_inverse:1,
+				cmap_static:1,
+				unused:30;
+
+	void (*lcd_power)(int);
+	void (*backlight_power)(int);
+};
+
+#define IMX_NAME	"IMX"
+
+/*
+ * Minimum X and Y resolutions
+ */
+#define MIN_XRES	64
+#define MIN_YRES	64
+