Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel

9 files changed, 1570 insertions, 6 deletions

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index acc7143d965..035a6c7e59d 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -34,10 +34,24 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 
-#include <mach/hardware.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <mach/i2c.h>
+#include <plat/i2c.h>
+
+/*
+ * I2C register offsets will be shifted 0 or 1 bit left, depending on
+ * different SoCs
+ */
+#define REG_SHIFT_0	(0 << 0)
+#define REG_SHIFT_1	(1 << 0)
+#define REG_SHIFT(d)	((d) & 0x1)
+
+static const struct platform_device_id i2c_pxa_id_table[] = {
+	{ "pxa2xx-i2c",		REG_SHIFT_1 },
+	{ "pxa3xx-pwri2c",	REG_SHIFT_0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(platform, i2c_pxa_id_table);
 
 /*
  * I2C registers and bit definitions
@@ -985,6 +999,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
 	struct pxa_i2c *i2c;
 	struct resource *res;
 	struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
+	struct platform_device_id *id = platform_get_device_id(dev);
 	int ret;
 	int irq;
 
@@ -1028,7 +1043,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
 		ret = -EIO;
 		goto eremap;
 	}
-	i2c->reg_shift = (cpu_is_pxa3xx() && (dev->id == 1)) ? 0 : 1;
+	i2c->reg_shift = REG_SHIFT(id->driver_data);
 
 	i2c->iobase = res->start;
 	i2c->iosize = res_len(res);
@@ -1150,6 +1165,7 @@ static struct platform_driver i2c_pxa_driver = {
 		.name	= "pxa2xx-i2c",
 		.owner	= THIS_MODULE,
 	},
+	.id_table	= i2c_pxa_id_table,
 };
 
 static int __init i2c_adap_pxa_init(void)
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index 329f890e290..f1f773b17fe 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -45,7 +45,8 @@
     defined(CONFIG_MACH_ZYLONITE) ||\
     defined(CONFIG_MACH_LITTLETON) ||\
     defined(CONFIG_MACH_ZYLONITE2) ||\
-    defined(CONFIG_ARCH_VIPER)
+    defined(CONFIG_ARCH_VIPER) ||\
+    defined(CONFIG_MACH_STARGATE2)
 
 #include <asm/mach-types.h>
 
@@ -73,7 +74,7 @@
 /* We actually can't write halfwords properly if not word aligned */
 static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 {
-	if (machine_is_mainstone() && reg & 2) {
+	if ((machine_is_mainstone() || machine_is_stargate2()) && reg & 2) {
 		unsigned int v = val << 16;
 		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
 		writel(v, ioaddr + (reg & ~2));
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 27647354398..fbf965b31c1 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -217,7 +217,7 @@ config PCMCIA_PXA2XX
 	depends on ARM && ARCH_PXA && PCMCIA
 	depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \
 		    || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \
-		    || ARCH_VIPER || ARCH_PXA_ESERIES)
+		    || ARCH_VIPER || ARCH_PXA_ESERIES || MACH_STARGATE2)
 	help
 	  Say Y here to include support for the PXA2xx PCMCIA controller
 
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index bbac4632722..047394d98ac 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -73,5 +73,6 @@ pxa2xx-obj-$(CONFIG_TRIZEPS_PCMCIA)		+= pxa2xx_trizeps4.o
 pxa2xx-obj-$(CONFIG_MACH_PALMTX)		+= pxa2xx_palmtx.o
 pxa2xx-obj-$(CONFIG_MACH_PALMLD)		+= pxa2xx_palmld.o
 pxa2xx-obj-$(CONFIG_MACH_E740)			+= pxa2xx_e740.o
+pxa2xx-obj-$(CONFIG_MACH_STARGATE2)		+= pxa2xx_stargate2.o
 
 obj-$(CONFIG_PCMCIA_PXA2XX)			+= pxa2xx_core.o $(pxa2xx-obj-y)
diff --git a/drivers/pcmcia/pxa2xx_stargate2.c b/drivers/pcmcia/pxa2xx_stargate2.c
new file mode 100644
index 00000000000..490749ea677
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_stargate2.c
@@ -0,0 +1,174 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_stargate2.c
+ *
+ * Stargate 2 PCMCIA specific routines.
+ *
+ * Created:	December 6, 2005
+ * Author:	Ed C. Epp
+ * Copyright:	Intel Corp 2005
+ *              Jonathan Cameron <jic23@cam.ac.uk> 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include "soc_common.h"
+
+#define SG2_S0_BUFF_CTL		120
+#define SG2_S0_POWER_CTL	108
+#define SG2_S0_GPIO_RESET	82
+#define SG2_S0_GPIO_DETECT	53
+#define SG2_S0_GPIO_READY	81
+
+static struct pcmcia_irqs irqs[] = {
+	{ 0, IRQ_GPIO(SG2_S0_GPIO_DETECT), "PCMCIA0 CD" },
+};
+
+static int sg2_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	skt->irq = IRQ_GPIO(SG2_S0_GPIO_READY);
+	return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void sg2_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void sg2_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+				    struct pcmcia_state *state)
+{
+	state->detect = !gpio_get_value(SG2_S0_GPIO_DETECT);
+	state->ready  = !!gpio_get_value(SG2_S0_GPIO_READY);
+	state->bvd1   = 0; /* not available - battery detect on card */
+	state->bvd2   = 0; /* not available */
+	state->vs_3v  = 1; /* not available - voltage detect for card */
+	state->vs_Xv  = 0; /* not available */
+	state->wrprot = 0; /* not available - write protect */
+}
+
+static int sg2_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+				       const socket_state_t *state)
+{
+	/* Enable card power */
+	switch (state->Vcc) {
+	case 0:
+		/* sets power ctl register high */
+		gpio_set_value(SG2_S0_POWER_CTL, 1);
+		break;
+	case 33:
+	case 50:
+		/* sets power control register low (clear) */
+		gpio_set_value(SG2_S0_POWER_CTL, 0);
+		msleep(100);
+		break;
+	default:
+		pr_err("%s(): bad Vcc %u\n",
+		       __func__, state->Vcc);
+		return -1;
+	}
+
+	/* reset */
+	gpio_set_value(SG2_S0_GPIO_RESET, !!(state->flags & SS_RESET));
+
+	return 0;
+}
+
+static void sg2_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static void sg2_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+	soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static struct pcmcia_low_level sg2_pcmcia_ops __initdata = {
+	.owner			= THIS_MODULE,
+	.hw_init		= sg2_pcmcia_hw_init,
+	.hw_shutdown		= sg2_pcmcia_hw_shutdown,
+	.socket_state		= sg2_pcmcia_socket_state,
+	.configure_socket	= sg2_pcmcia_configure_socket,
+	.socket_init		= sg2_pcmcia_socket_init,
+	.socket_suspend		= sg2_pcmcia_socket_suspend,
+	.nr			= 1,
+};
+
+static struct platform_device *sg2_pcmcia_device;
+
+static int __init sg2_pcmcia_init(void)
+{
+	int ret;
+
+	if (!machine_is_stargate2())
+		return -ENODEV;
+
+	sg2_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+	if (!sg2_pcmcia_device)
+		return -ENOMEM;
+
+	ret = gpio_request(SG2_S0_BUFF_CTL, "SG2 CF buff ctl");
+	if (ret)
+		goto error_put_platform_device;
+	ret = gpio_request(SG2_S0_POWER_CTL, "SG2 CF power ctl");
+	if (ret)
+		goto error_free_gpio_buff_ctl;
+	ret = gpio_request(SG2_S0_GPIO_RESET, "SG2 CF reset");
+	if (ret)
+		goto error_free_gpio_power_ctl;
+	/* Set gpio directions */
+	gpio_direction_output(SG2_S0_BUFF_CTL, 0);
+	gpio_direction_output(SG2_S0_POWER_CTL, 1);
+	gpio_direction_output(SG2_S0_GPIO_RESET, 1);
+
+	ret = platform_device_add_data(sg2_pcmcia_device,
+				       &sg2_pcmcia_ops,
+				       sizeof(sg2_pcmcia_ops));
+	if (ret)
+		goto error_free_gpio_reset;
+
+	ret = platform_device_add(sg2_pcmcia_device);
+	if (ret)
+		goto error_free_gpio_reset;
+
+	return 0;
+error_free_gpio_reset:
+	gpio_free(SG2_S0_GPIO_RESET);
+error_free_gpio_power_ctl:
+	gpio_free(SG2_S0_POWER_CTL);
+error_free_gpio_buff_ctl:
+	gpio_free(SG2_S0_BUFF_CTL);
+error_put_platform_device:
+	platform_device_put(sg2_pcmcia_device);
+
+	return ret;
+}
+
+static void __exit sg2_pcmcia_exit(void)
+{
+	platform_device_unregister(sg2_pcmcia_device);
+	gpio_free(SG2_S0_BUFF_CTL);
+	gpio_free(SG2_S0_POWER_CTL);
+	gpio_free(SG2_S0_GPIO_RESET);
+}
+
+fs_initcall(sg2_pcmcia_init);
+module_exit(sg2_pcmcia_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 8083d862ebc..b6c0239d8d2 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1759,6 +1759,16 @@ config FB_68328
 	  Say Y here if you want to support the built-in frame buffer of
 	  the Motorola 68328 CPU family.
 
+config FB_PXA168
+	tristate "PXA168/910 LCD framebuffer support"
+	depends on FB && (CPU_PXA168 || CPU_PXA910)
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	---help---
+	  Frame buffer driver for the built-in LCD controller in the Marvell
+	  MMP processor.
+
 config FB_PXA
 	tristate "PXA LCD framebuffer support"
 	depends on FB && ARCH_PXA
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index d8d0be5151e..01a819f4737 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -97,6 +97,7 @@ obj-$(CONFIG_FB_GBE)              += gbefb.o
 obj-$(CONFIG_FB_CIRRUS)		  += cirrusfb.o
 obj-$(CONFIG_FB_ASILIANT)	  += asiliantfb.o
 obj-$(CONFIG_FB_PXA)		  += pxafb.o
+obj-$(CONFIG_FB_PXA168)		  += pxa168fb.o
 obj-$(CONFIG_FB_W100)		  += w100fb.o
 obj-$(CONFIG_FB_TMIO)		  += tmiofb.o
 obj-$(CONFIG_FB_AU1100)		  += au1100fb.o
diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
new file mode 100644
index 00000000000..84d8327e47d
--- /dev/null
+++ b/drivers/video/pxa168fb.c
@@ -0,0 +1,803 @@
+/*
+ * linux/drivers/video/pxa168fb.c -- Marvell PXA168 LCD Controller
+ *
+ *  Copyright (C) 2008 Marvell International Ltd.
+ *  All rights reserved.
+ *
+ *  2009-02-16  adapted from original version for PXA168/910
+ *              Jun Nie <njun@marvell.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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/uaccess.h>
+#include <video/pxa168fb.h>
+
+#include "pxa168fb.h"
+
+#define DEFAULT_REFRESH		60	/* Hz */
+
+static int determine_best_pix_fmt(struct fb_var_screeninfo *var)
+{
+	/*
+	 * Pseudocolor mode?
+	 */
+	if (var->bits_per_pixel == 8)
+		return PIX_FMT_PSEUDOCOLOR;
+
+	/*
+	 * Check for 565/1555.
+	 */
+	if (var->bits_per_pixel == 16 && var->red.length <= 5 &&
+	    var->green.length <= 6 && var->blue.length <= 5) {
+		if (var->transp.length == 0) {
+			if (var->red.offset >= var->blue.offset)
+				return PIX_FMT_RGB565;
+			else
+				return PIX_FMT_BGR565;
+		}
+
+		if (var->transp.length == 1 && var->green.length <= 5) {
+			if (var->red.offset >= var->blue.offset)
+				return PIX_FMT_RGB1555;
+			else
+				return PIX_FMT_BGR1555;
+		}
+
+		/* fall through */
+	}
+
+	/*
+	 * Check for 888/A888.
+	 */
+	if (var->bits_per_pixel <= 32 && var->red.length <= 8 &&
+	    var->green.length <= 8 && var->blue.length <= 8) {
+		if (var->bits_per_pixel == 24 && var->transp.length == 0) {
+			if (var->red.offset >= var->blue.offset)
+				return PIX_FMT_RGB888PACK;
+			else
+				return PIX_FMT_BGR888PACK;
+		}
+
+		if (var->bits_per_pixel == 32 && var->transp.length == 8) {
+			if (var->red.offset >= var->blue.offset)
+				return PIX_FMT_RGBA888;
+			else
+				return PIX_FMT_BGRA888;
+		} else {
+			if (var->red.offset >= var->blue.offset)
+				return PIX_FMT_RGB888UNPACK;
+			else
+				return PIX_FMT_BGR888UNPACK;
+		}
+
+		/* fall through */
+	}
+
+	return -EINVAL;
+}
+
+static void set_pix_fmt(struct fb_var_screeninfo *var, int pix_fmt)
+{
+	switch (pix_fmt) {
+	case PIX_FMT_RGB565:
+		var->bits_per_pixel = 16;
+		var->red.offset = 11;    var->red.length = 5;
+		var->green.offset = 5;   var->green.length = 6;
+		var->blue.offset = 0;    var->blue.length = 5;
+		var->transp.offset = 0;  var->transp.length = 0;
+		break;
+	case PIX_FMT_BGR565:
+		var->bits_per_pixel = 16;
+		var->red.offset = 0;     var->red.length = 5;
+		var->green.offset = 5;   var->green.length = 6;
+		var->blue.offset = 11;   var->blue.length = 5;
+		var->transp.offset = 0;  var->transp.length = 0;
+		break;
+	case PIX_FMT_RGB1555:
+		var->bits_per_pixel = 16;
+		var->red.offset = 10;    var->red.length = 5;
+		var->green.offset = 5;   var->green.length = 5;
+		var->blue.offset = 0;    var->blue.length = 5;
+		var->transp.offset = 15; var->transp.length = 1;
+		break;
+	case PIX_FMT_BGR1555:
+		var->bits_per_pixel = 16;
+		var->red.offset = 0;     var->red.length = 5;
+		var->green.offset = 5;   var->green.length = 5;
+		var->blue.offset = 10;   var->blue.length = 5;
+		var->transp.offset = 15; var->transp.length = 1;
+		break;
+	case PIX_FMT_RGB888PACK:
+		var->bits_per_pixel = 24;
+		var->red.offset = 16;    var->red.length = 8;
+		var->green.offset = 8;   var->green.length = 8;
+		var->blue.offset = 0;    var->blue.length = 8;
+		var->transp.offset = 0;  var->transp.length = 0;
+		break;
+	case PIX_FMT_BGR888PACK:
+		var->bits_per_pixel = 24;
+		var->red.offset = 0;     var->red.length = 8;
+		var->green.offset = 8;   var->green.length = 8;
+		var->blue.offset = 16;   var->blue.length = 8;
+		var->transp.offset = 0;  var->transp.length = 0;
+		break;
+	case PIX_FMT_RGBA888:
+		var->bits_per_pixel = 32;
+		var->red.offset = 16;    var->red.length = 8;
+		var->green.offset = 8;   var->green.length = 8;
+		var->blue.offset = 0;    var->blue.length = 8;
+		var->transp.offset = 24; var->transp.length = 8;
+		break;
+	case PIX_FMT_BGRA888:
+		var->bits_per_pixel = 32;
+		var->red.offset = 0;     var->red.length = 8;
+		var->green.offset = 8;   var->green.length = 8;
+		var->blue.offset = 16;   var->blue.length = 8;
+		var->transp.offset = 24; var->transp.length = 8;
+		break;
+	case PIX_FMT_PSEUDOCOLOR:
+		var->bits_per_pixel = 8;
+		var->red.offset = 0;     var->red.length = 8;
+		var->green.offset = 0;   var->green.length = 8;
+		var->blue.offset = 0;    var->blue.length = 8;
+		var->transp.offset = 0;  var->transp.length = 0;
+		break;
+	}
+}
+
+static void set_mode(struct pxa168fb_info *fbi, struct fb_var_screeninfo *var,
+		     struct fb_videomode *mode, int pix_fmt, int ystretch)
+{
+	struct fb_info *info = fbi->info;
+
+	set_pix_fmt(var, pix_fmt);
+
+	var->xres = mode->xres;
+	var->yres = mode->yres;
+	var->xres_virtual = max(var->xres, var->xres_virtual);
+	if (ystretch)
+		var->yres_virtual = info->fix.smem_len /
+			(var->xres_virtual * (var->bits_per_pixel >> 3));
+	else
+		var->yres_virtual = max(var->yres, var->yres_virtual);
+	var->grayscale = 0;
+	var->accel_flags = FB_ACCEL_NONE;
+	var->pixclock = mode->pixclock;
+	var->left_margin = mode->left_margin;
+	var->right_margin = mode->right_margin;
+	var->upper_margin = mode->upper_margin;
+	var->lower_margin = mode->lower_margin;
+	var->hsync_len = mode->hsync_len;
+	var->vsync_len = mode->vsync_len;
+	var->sync = mode->sync;
+	var->vmode = FB_VMODE_NONINTERLACED;
+	var->rotate = FB_ROTATE_UR;
+}
+
+static int pxa168fb_check_var(struct fb_var_screeninfo *var,
+			      struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+	int pix_fmt;
+
+	/*
+	 * Determine which pixel format we're going to use.
+	 */
+	pix_fmt = determine_best_pix_fmt(var);
+	if (pix_fmt < 0)
+		return pix_fmt;
+	set_pix_fmt(var, pix_fmt);
+	fbi->pix_fmt = pix_fmt;
+
+	/*
+	 * Basic geometry sanity checks.
+	 */
+	if (var->xoffset + var->xres > var->xres_virtual)
+		return -EINVAL;
+	if (var->yoffset + var->yres > var->yres_virtual)
+		return -EINVAL;
+	if (var->xres + var->right_margin +
+	    var->hsync_len + var->left_margin > 2048)
+		return -EINVAL;
+	if (var->yres + var->lower_margin +
+	    var->vsync_len + var->upper_margin > 2048)
+		return -EINVAL;
+
+	/*
+	 * Check size of framebuffer.
+	 */
+	if (var->xres_virtual * var->yres_virtual *
+	    (var->bits_per_pixel >> 3) > info->fix.smem_len)
+		return -EINVAL;
+
+	return 0;
+}
+
+/*
+ * The hardware clock divider has an integer and a fractional
+ * stage:
+ *
+ *	clk2 = clk_in / integer_divider
+ *	clk_out = clk2 * (1 - (fractional_divider >> 12))
+ *
+ * Calculate integer and fractional divider for given clk_in
+ * and clk_out.
+ */
+static void set_clock_divider(struct pxa168fb_info *fbi,
+			      const struct fb_videomode *m)
+{
+	int divider_int;
+	int needed_pixclk;
+	u64 div_result;
+	u32 x = 0;
+
+	/*
+	 * Notice: The field pixclock is used by linux fb
+	 * is in pixel second. E.g. struct fb_videomode &
+	 * struct fb_var_screeninfo
+	 */
+
+	/*
+	 * Check input values.
+	 */
+	if (!m || !m->pixclock || !m->refresh) {
+		dev_err(fbi->dev, "Input refresh or pixclock is wrong.\n");
+		return;
+	}
+
+	/*
+	 * Using PLL/AXI clock.
+	 */
+	x = 0x80000000;
+
+	/*
+	 * Calc divider according to refresh rate.
+	 */
+	div_result = 1000000000000ll;
+	do_div(div_result, m->pixclock);
+	needed_pixclk = (u32)div_result;
+
+	divider_int = clk_get_rate(fbi->clk) / needed_pixclk;
+
+	/* check whether divisor is too small. */
+	if (divider_int < 2) {
+		dev_warn(fbi->dev, "Warning: clock source is too slow."
+				"Try smaller resolution\n");
+		divider_int = 2;
+	}
+
+	/*
+	 * Set setting to reg.
+	 */
+	x |= divider_int;
+	writel(x, fbi->reg_base + LCD_CFG_SCLK_DIV);
+}
+
+static void set_dma_control0(struct pxa168fb_info *fbi)
+{
+	u32 x;
+
+	/*
+	 * Set bit to enable graphics DMA.
+	 */
+	x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL0);
+	x |= fbi->active ? 0x00000100 : 0;
+	fbi->active = 0;
+
+	/*
+	 * If we are in a pseudo-color mode, we need to enable
+	 * palette lookup.
+	 */
+	if (fbi->pix_fmt == PIX_FMT_PSEUDOCOLOR)
+		x |= 0x10000000;
+
+	/*
+	 * Configure hardware pixel format.
+	 */
+	x &= ~(0xF << 16);
+	x |= (fbi->pix_fmt >> 1) << 16;
+
+	/*
+	 * Check red and blue pixel swap.
+	 * 1. source data swap
+	 * 2. panel output data swap
+	 */
+	x &= ~(1 << 12);
+	x |= ((fbi->pix_fmt & 1) ^ (fbi->panel_rbswap)) << 12;
+
+	writel(x, fbi->reg_base + LCD_SPU_DMA_CTRL0);
+}
+
+static void set_dma_control1(struct pxa168fb_info *fbi, int sync)
+{
+	u32 x;
+
+	/*
+	 * Configure default bits: vsync triggers DMA, gated clock
+	 * enable, power save enable, configure alpha registers to
+	 * display 100% graphics, and set pixel command.
+	 */
+	x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL1);
+	x |= 0x2032ff81;
+
+	/*
+	 * We trigger DMA on the falling edge of vsync if vsync is
+	 * active low, or on the rising edge if vsync is active high.
+	 */
+	if (!(sync & FB_SYNC_VERT_HIGH_ACT))
+		x |= 0x08000000;
+
+	writel(x, fbi->reg_base + LCD_SPU_DMA_CTRL1);
+}
+
+static void set_graphics_start(struct fb_info *info, int xoffset, int yoffset)
+{
+	struct pxa168fb_info *fbi = info->par;
+	struct fb_var_screeninfo *var = &info->var;
+	int pixel_offset;
+	unsigned long addr;
+
+	pixel_offset = (yoffset * var->xres_virtual) + xoffset;
+
+	addr = fbi->fb_start_dma + (pixel_offset * (var->bits_per_pixel >> 3));
+	writel(addr, fbi->reg_base + LCD_CFG_GRA_START_ADDR0);
+}
+
+static void set_dumb_panel_control(struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+	struct pxa168fb_mach_info *mi = fbi->dev->platform_data;
+	u32 x;
+
+	/*
+	 * Preserve enable flag.
+	 */
+	x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL) & 0x00000001;
+
+	x |= (fbi->is_blanked ? 0x7 : mi->dumb_mode) << 28;
+	x |= mi->gpio_output_data << 20;
+	x |= mi->gpio_output_mask << 12;
+	x |= mi->panel_rgb_reverse_lanes ? 0x00000080 : 0;
+	x |= mi->invert_composite_blank ? 0x00000040 : 0;
+	x |= (info->var.sync & FB_SYNC_COMP_HIGH_ACT) ? 0x00000020 : 0;
+	x |= mi->invert_pix_val_ena ? 0x00000010 : 0;
+	x |= (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 0x00000008;
+	x |= (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 0x00000004;
+	x |= mi->invert_pixclock ? 0x00000002 : 0;
+
+	writel(x, fbi->reg_base + LCD_SPU_DUMB_CTRL);
+}
+
+static void set_dumb_screen_dimensions(struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+	struct fb_var_screeninfo *v = &info->var;
+	int x;
+	int y;
+
+	x = v->xres + v->right_margin + v->hsync_len + v->left_margin;
+	y = v->yres + v->lower_margin + v->vsync_len + v->upper_margin;
+
+	writel((y << 16) | x, fbi->reg_base + LCD_SPUT_V_H_TOTAL);
+}
+
+static int pxa168fb_set_par(struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+	struct fb_var_screeninfo *var = &info->var;
+	struct fb_videomode mode;
+	u32 x;
+	struct pxa168fb_mach_info *mi;
+
+	mi = fbi->dev->platform_data;
+
+	/*
+	 * Set additional mode info.
+	 */
+	if (fbi->pix_fmt == PIX_FMT_PSEUDOCOLOR)
+		info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+	else
+		info->fix.visual = FB_VISUAL_TRUECOLOR;
+	info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
+	info->fix.ypanstep = var->yres;
+
+	/*
+	 * Disable panel output while we setup the display.
+	 */
+	x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL);
+	writel(x & ~1, fbi->reg_base + LCD_SPU_DUMB_CTRL);
+
+	/*
+	 * Configure global panel parameters.
+	 */
+	writel((var->yres << 16) | var->xres,
+		fbi->reg_base + LCD_SPU_V_H_ACTIVE);
+
+	/*
+	 * convet var to video mode
+	 */
+	fb_var_to_videomode(&mode, &info->var);
+
+	/* Calculate clock divisor. */
+	set_clock_divider(fbi, &mode);
+
+	/* Configure dma ctrl regs. */
+	set_dma_control0(fbi);
+	set_dma_control1(fbi, info->var.sync);
+
+	/*
+	 * Configure graphics DMA parameters.
+	 */
+	x = readl(fbi->reg_base + LCD_CFG_GRA_PITCH);
+	x = (x & ~0xFFFF) | ((var->xres_virtual * var->bits_per_pixel) >> 3);
+	writel(x, fbi->reg_base + LCD_CFG_GRA_PITCH);
+	writel((var->yres << 16) | var->xres,
+		fbi->reg_base + LCD_SPU_GRA_HPXL_VLN);
+	writel((var->yres << 16) | var->xres,
+		fbi->reg_base + LCD_SPU_GZM_HPXL_VLN);
+
+	/*
+	 * Configure dumb panel ctrl regs & timings.
+	 */
+	set_dumb_panel_control(info);
+	set_dumb_screen_dimensions(info);
+
+	writel((var->left_margin << 16) | var->right_margin,
+			fbi->reg_base + LCD_SPU_H_PORCH);
+	writel((var->upper_margin << 16) | var->lower_margin,
+			fbi->reg_base + LCD_SPU_V_PORCH);
+
+	/*
+	 * Re-enable panel output.
+	 */
+	x = readl(fbi->reg_base + LCD_SPU_DUMB_CTRL);
+	writel(x | 1, fbi->reg_base + LCD_SPU_DUMB_CTRL);
+
+	return 0;
+}
+
+static unsigned int chan_to_field(unsigned int chan, struct fb_bitfield *bf)
+{
+	return ((chan & 0xffff) >> (16 - bf->length)) << bf->offset;
+}
+
+static u32 to_rgb(u16 red, u16 green, u16 blue)
+{
+	red >>= 8;
+	green >>= 8;
+	blue >>= 8;
+
+	return (red << 16) | (green << 8) | blue;
+}
+
+static int
+pxa168fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
+		 unsigned int blue, unsigned int trans, struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+	u32 val;
+
+	if (info->var.grayscale)
+		red = green = blue = (19595 * red + 38470 * green +
+					7471 * blue) >> 16;
+
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 16) {
+		val =  chan_to_field(red,   &info->var.red);
+		val |= chan_to_field(green, &info->var.green);
+		val |= chan_to_field(blue , &info->var.blue);
+		fbi->pseudo_palette[regno] = val;
+	}
+
+	if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR && regno < 256) {
+		val = to_rgb(red, green, blue);
+		writel(val, fbi->reg_base + LCD_SPU_SRAM_WRDAT);
+		writel(0x8300 | regno, fbi->reg_base + LCD_SPU_SRAM_CTRL);
+	}
+
+	return 0;
+}
+
+static int pxa168fb_blank(int blank, struct fb_info *info)
+{
+	struct pxa168fb_info *fbi = info->par;
+
+	fbi->is_blanked = (blank == FB_BLANK_UNBLANK) ? 0 : 1;
+	set_dumb_panel_control(info);
+
+	return 0;
+}
+
+static int pxa168fb_pan_display(struct fb_var_screeninfo *var,
+				struct fb_info *info)
+{
+	set_graphics_start(info, var->xoffset, var->yoffset);
+
+	return 0;
+}
+
+static irqreturn_t pxa168fb_handle_irq(int irq, void *dev_id)
+{
+	struct pxa168fb_info *fbi = dev_id;
+	u32 isr = readl(fbi->reg_base + SPU_IRQ_ISR);
+
+	if ((isr & GRA_FRAME_IRQ0_ENA_MASK)) {
+
+		writel(isr & (~GRA_FRAME_IRQ0_ENA_MASK),
+			fbi->reg_base + SPU_IRQ_ISR);
+
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+static struct fb_ops pxa168fb_ops = {
+	.owner		= THIS_MODULE,
+	.fb_check_var	= pxa168fb_check_var,
+	.fb_set_par	= pxa168fb_set_par,
+	.fb_setcolreg	= pxa168fb_setcolreg,
+	.fb_blank	= pxa168fb_blank,
+	.fb_pan_display	= pxa168fb_pan_display,
+	.fb_fillrect	= cfb_fillrect,
+	.fb_copyarea	= cfb_copyarea,
+	.fb_imageblit	= cfb_imageblit,
+};
+
+static int __init pxa168fb_init_mode(struct fb_info *info,
+			      struct pxa168fb_mach_info *mi)
+{
+	struct pxa168fb_info *fbi = info->par;
+	struct fb_var_screeninfo *var = &info->var;
+	int ret = 0;
+	u32 total_w, total_h, refresh;
+	u64 div_result;
+	const struct fb_videomode *m;
+
+	/*
+	 * Set default value
+	 */
+	refresh = DEFAULT_REFRESH;
+
+	/* try to find best video mode. */
+	m = fb_find_best_mode(&info->var, &info->modelist);
+	if (m)
+		fb_videomode_to_var(&info->var, m);
+
+	/* Init settings. */
+	var->xres_virtual = var->xres;
+	var->yres_virtual = info->fix.smem_len /
+		(var->xres_virtual * (var->bits_per_pixel >> 3));
+	dev_dbg(fbi->dev, "pxa168fb: find best mode: res = %dx%d\n",
+				var->xres, var->yres);
+
+	/* correct pixclock. */
+	total_w = var->xres + var->left_margin + var->right_margin +
+		  var->hsync_len;
+	total_h = var->yres + var->upper_margin + var->lower_margin +
+		  var->vsync_len;
+
+	div_result = 1000000000000ll;
+	do_div(div_result, total_w * total_h * refresh);
+	var->pixclock = (u32)div_result;
+
+	return ret;
+}
+
+static int __init pxa168fb_probe(struct platform_device *pdev)
+{
+	struct pxa168fb_mach_info *mi;
+	struct fb_info *info = 0;
+	struct pxa168fb_info *fbi = 0;
+	struct resource *res;
+	struct clk *clk;
+	int irq, ret;
+
+	mi = pdev->dev.platform_data;
+	if (mi == NULL) {
+		dev_err(&pdev->dev, "no platform data defined\n");
+		return -EINVAL;
+	}
+
+	clk = clk_get(&pdev->dev, "LCDCLK");
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "unable to get LCDCLK");
+		return PTR_ERR(clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no IO memory defined\n");
+		return -ENOENT;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no IRQ defined\n");
+		return -ENOENT;
+	}
+
+	info = framebuffer_alloc(sizeof(struct pxa168fb_info), &pdev->dev);
+	if (info == NULL) {
+		clk_put(clk);
+		return -ENOMEM;
+	}
+
+	/* Initialize private data */
+	fbi = info->par;
+	fbi->info = info;
+	fbi->clk = clk;
+	fbi->dev = info->dev = &pdev->dev;
+	fbi->panel_rbswap = mi->panel_rbswap;
+	fbi->is_blanked = 0;
+	fbi->active = mi->active;
+
+	/*
+	 * Initialise static fb parameters.
+	 */
+	info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK |
+		      FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
+	info->node = -1;
+	strlcpy(info->fix.id, mi->id, 16);
+	info->fix.type = FB_TYPE_PACKED_PIXELS;
+	info->fix.type_aux = 0;
+	info->fix.xpanstep = 0;
+	info->fix.ypanstep = 0;
+	info->fix.ywrapstep = 0;
+	info->fix.mmio_start = res->start;
+	info->fix.mmio_len = res->end - res->start + 1;
+	info->fix.accel = FB_ACCEL_NONE;
+	info->fbops = &pxa168fb_ops;
+	info->pseudo_palette = fbi->pseudo_palette;
+
+	/*
+	 * Map LCD controller registers.
+	 */
+	fbi->reg_base = ioremap_nocache(res->start, res->end - res->start);
+	if (fbi->reg_base == NULL) {
+		ret = -ENOMEM;
+		goto failed;
+	}
+
+	/*
+	 * Allocate framebuffer memory.
+	 */
+	info->fix.smem_len = PAGE_ALIGN(DEFAULT_FB_SIZE);
+
+	info->screen_base = dma_alloc_writecombine(fbi->dev, info->fix.smem_len,
+						&fbi->fb_start_dma, GFP_KERNEL);
+	if (info->screen_base == NULL) {
+		ret = -ENOMEM;
+		goto failed;
+	}
+
+	info->fix.smem_start = (unsigned long)fbi->fb_start_dma;
+
+	/*
+	 * Set video mode according to platform data.
+	 */
+	set_mode(fbi, &info->var, mi->modes, mi->pix_fmt, 1);
+
+	fb_videomode_to_modelist(mi->modes, mi->num_modes, &info->modelist);
+
+	/*
+	 * init video mode data.
+	 */
+	pxa168fb_init_mode(info, mi);
+
+	ret = pxa168fb_check_var(&info->var, info);
+	if (ret)
+		goto failed_free_fbmem;
+
+	/*
+	 * Fill in sane defaults.
+	 */
+	ret = pxa168fb_check_var(&info->var, info);
+	if (ret)
+		goto failed;
+
+	/*
+	 * enable controller clock
+	 */
+	clk_enable(fbi->clk);
+
+	pxa168fb_set_par(info);
+
+	/*
+	 * Configure default register values.
+	 */
+	writel(0, fbi->reg_base + LCD_SPU_BLANKCOLOR);
+	writel(mi->io_pin_allocation_mode, fbi->reg_base + SPU_IOPAD_CONTROL);
+	writel(0, fbi->reg_base + LCD_CFG_GRA_START_ADDR1);
+	writel(0, fbi->reg_base + LCD_SPU_GRA_OVSA_HPXL_VLN);
+	writel(0, fbi->reg_base + LCD_SPU_SRAM_PARA0);
+	writel(CFG_CSB_256x32(0x1)|CFG_CSB_256x24(0x1)|CFG_CSB_256x8(0x1),
+		fbi->reg_base + LCD_SPU_SRAM_PARA1);
+
+	/*
+	 * Allocate color map.
+	 */
+	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+		ret = -ENOMEM;
+		goto failed_free_clk;
+	}
+
+	/*
+	 * Register