X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Farm%2Fmach-integrator%2Fimpd1.c;h=92d79fb39311f73ee755abd6c67f6b8df6c5b3ed;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=dfdd5ecdf1315c25aa4335875f59ca65c7e8e0a7;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index dfdd5ecdf..92d79fb39 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -17,21 +17,26 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
 
 #include <asm/io.h>
 #include <asm/hardware/icst525.h>
-#include <asm/hardware/amba.h>
 #include <asm/arch/lm.h>
 #include <asm/arch/impd1.h>
 #include <asm/sizes.h>
 
+#include "clock.h"
+
 static int module_id;
 
 module_param_named(lmid, module_id, int, 0444);
 MODULE_PARM_DESC(lmid, "logic module stack position");
 
 struct impd1_module {
-	void	*base;
+	void __iomem	*base;
+	struct clk	vcos[2];
 };
 
 static const struct icst525_params impd1_vco_params = {
@@ -43,31 +48,26 @@ static const struct icst525_params impd1_vco_params = {
 	.rd_max		= 120,
 };
 
-void impd1_set_vco(struct device *dev, int vconr, unsigned long period)
+static void impd1_setvco(struct clk *clk, struct icst525_vco vco)
 {
-	struct impd1_module *impd1 = dev_get_drvdata(dev);
-	struct icst525_vco vco;
+	struct impd1_module *impd1 = clk->data;
+	int vconr = clk - impd1->vcos;
 	u32 val;
 
-	vco = icst525_ps_to_vco(&impd1_vco_params, period);
-
-	pr_debug("Guessed VCO reg params: S=%d R=%d V=%d\n",
-		vco.s, vco.r, vco.v);
-
 	val = vco.v | (vco.r << 9) | (vco.s << 16);
 
 	writel(0xa05f, impd1->base + IMPD1_LOCK);
 	switch (vconr) {
-	case 1:
+	case 0:
 		writel(val, impd1->base + IMPD1_OSC1);
 		break;
-	case 2:
+	case 1:
 		writel(val, impd1->base + IMPD1_OSC2);
 		break;
 	}
 	writel(0, impd1->base + IMPD1_LOCK);
 
-#if DEBUG
+#ifdef DEBUG
 	vco.v = val & 0x1ff;
 	vco.r = (val >> 9) & 0x7f;
 	vco.s = (val >> 16) & 7;
@@ -77,8 +77,6 @@ void impd1_set_vco(struct device *dev, int vconr, unsigned long period)
 #endif
 }
 
-EXPORT_SYMBOL(impd1_set_vco);
-
 void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
 {
 	struct impd1_module *impd1 = dev_get_drvdata(dev);
@@ -91,10 +89,210 @@ void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
 
 EXPORT_SYMBOL(impd1_tweak_control);
 
+/*
+ * CLCD support
+ */
+#define PANEL		PROSPECTOR
+
+#define LTM10C209		1
+#define PROSPECTOR		2
+#define SVGA			3
+#define VGA			4
+
+#if PANEL == VGA
+#define PANELTYPE	vga
+static struct clcd_panel vga = {
+	.mode		= {
+		.name		= "VGA",
+		.refresh	= 60,
+		.xres		= 640,
+		.yres		= 480,
+		.pixclock	= 39721,
+		.left_margin	= 40,
+		.right_margin	= 24,
+		.upper_margin	= 32,
+		.lower_margin	= 11,
+		.hsync_len	= 96,
+		.vsync_len	= 2,
+		.sync		= 0,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+	.width		= -1,
+	.height		= -1,
+	.tim2		= TIM2_BCD | TIM2_IPC,
+	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+	.connector	= IMPD1_CTRL_DISP_VGA,
+	.bpp		= 16,
+	.grayscale	= 0,
+};
+
+#elif PANEL == SVGA
+#define PANELTYPE	svga
+static struct clcd_panel svga = {
+	.mode		= {
+		.name		= "SVGA",
+		.refresh	= 0,
+		.xres		= 800,
+		.yres		= 600,
+		.pixclock	= 27778,
+		.left_margin	= 20,
+		.right_margin	= 20,
+		.upper_margin	= 5,
+		.lower_margin	= 5,
+		.hsync_len	= 164,
+		.vsync_len	= 62,
+		.sync		= 0,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+	.width		= -1,
+	.height		= -1,
+	.tim2		= TIM2_BCD,
+	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+	.connector	= IMPD1_CTRL_DISP_VGA,
+	.bpp		= 16,
+	.grayscale	= 0,
+};
+
+#elif PANEL == PROSPECTOR
+#define PANELTYPE	prospector
+static struct clcd_panel prospector = {
+	.mode		= {
+		.name		= "PROSPECTOR",
+		.refresh	= 0,
+		.xres		= 640,
+		.yres		= 480,
+		.pixclock	= 40000,
+		.left_margin	= 33,
+		.right_margin	= 64,
+		.upper_margin	= 36,
+		.lower_margin	= 7,
+		.hsync_len	= 64,
+		.vsync_len	= 25,
+		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+	.width		= -1,
+	.height		= -1,
+	.tim2		= TIM2_BCD,
+	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+	.fixedtimings	= 1,
+	.connector	= IMPD1_CTRL_DISP_LCD,
+	.bpp		= 16,
+	.grayscale	= 0,
+};
+
+#elif PANEL == LTM10C209
+#define PANELTYPE	ltm10c209
+/*
+ * Untested.
+ */
+static struct clcd_panel ltm10c209 = {
+	.mode		= {
+		.name		= "LTM10C209",
+		.refresh	= 0,
+		.xres		= 640,
+		.yres		= 480,
+		.pixclock	= 40000,
+		.left_margin	= 20,
+		.right_margin	= 20,
+		.upper_margin	= 19,
+		.lower_margin	= 19,
+		.hsync_len	= 20,
+		.vsync_len	= 10,
+		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+	.width		= -1,
+	.height		= -1,
+	.tim2		= TIM2_BCD,
+	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
+	.fixedtimings	= 1,
+	.connector	= IMPD1_CTRL_DISP_LCD,
+	.bpp		= 16,
+	.grayscale	= 0,
+};
+#endif
+
+/*
+ * Disable all display connectors on the interface module.
+ */
+static void impd1fb_clcd_disable(struct clcd_fb *fb)
+{
+	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK, 0);
+}
+
+/*
+ * Enable the relevant connector on the interface module.
+ */
+static void impd1fb_clcd_enable(struct clcd_fb *fb)
+{
+	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK,
+			fb->panel->connector | IMPD1_CTRL_DISP_ENABLE);
+}
+
+static int impd1fb_clcd_setup(struct clcd_fb *fb)
+{
+	unsigned long framebase = fb->dev->res.start + 0x01000000;
+	unsigned long framesize = SZ_1M;
+	int ret = 0;
+
+	fb->panel = &PANELTYPE;
+
+	if (!request_mem_region(framebase, framesize, "clcd framebuffer")) {
+		printk(KERN_ERR "IM-PD1: unable to reserve framebuffer\n");
+		return -EBUSY;
+	}
+
+	fb->fb.screen_base = ioremap(framebase, framesize);
+	if (!fb->fb.screen_base) {
+		printk(KERN_ERR "IM-PD1: unable to map framebuffer\n");
+		ret = -ENOMEM;
+		goto free_buffer;
+	}
+
+	fb->fb.fix.smem_start	= framebase;
+	fb->fb.fix.smem_len	= framesize;
+
+	return 0;
+
+ free_buffer:
+	release_mem_region(framebase, framesize);
+	return ret;
+}
+
+static int impd1fb_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+	unsigned long start, size;
+
+	start = vma->vm_pgoff + (fb->fb.fix.smem_start >> PAGE_SHIFT);
+	size = vma->vm_end - vma->vm_start;
+
+	return remap_pfn_range(vma, vma->vm_start, start, size,
+			       vma->vm_page_prot);
+}
+
+static void impd1fb_clcd_remove(struct clcd_fb *fb)
+{
+	iounmap(fb->fb.screen_base);
+	release_mem_region(fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+}
+
+static struct clcd_board impd1_clcd_data = {
+	.name		= "IM-PD/1",
+	.check		= clcdfb_check,
+	.decode		= clcdfb_decode,
+	.disable	= impd1fb_clcd_disable,
+	.enable		= impd1fb_clcd_enable,
+	.setup		= impd1fb_clcd_setup,
+	.mmap		= impd1fb_clcd_mmap,
+	.remove		= impd1fb_clcd_remove,
+};
+
 struct impd1_device {
 	unsigned long	offset;
 	unsigned int	irq[2];
 	unsigned int	id;
+	void		*platform_data;
 };
 
 static struct impd1_device impd1_devs[] = {
@@ -137,9 +335,15 @@ static struct impd1_device impd1_devs[] = {
 		.offset	= 0x01000000,
 		.irq	= { 11 },
 		.id	= 0x00041110,
+		.platform_data = &impd1_clcd_data,
 	}
 };
 
+static const char *impd1_vconames[2] = {
+	"CLCDCLK",
+	"AUXVCO2",
+};
+
 static int impd1_probe(struct lm_device *dev)
 {
 	struct impd1_module *impd1;
@@ -151,12 +355,11 @@ static int impd1_probe(struct lm_device *dev)
 	if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
 		return -EBUSY;
 
-	impd1 = kmalloc(sizeof(struct impd1_module), GFP_KERNEL);
+	impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL);
 	if (!impd1) {
 		ret = -ENOMEM;
 		goto release_lm;
 	}
-	memset(impd1, 0, sizeof(struct impd1_module));
 
 	impd1->base = ioremap(dev->resource.start, SZ_4K);
 	if (!impd1->base) {
@@ -168,6 +371,16 @@ static int impd1_probe(struct lm_device *dev)
 
 	printk("IM-PD1 found at 0x%08lx\n", dev->resource.start);
 
+	for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) {
+		impd1->vcos[i].owner = THIS_MODULE,
+		impd1->vcos[i].name = impd1_vconames[i],
+		impd1->vcos[i].params = &impd1_vco_params,
+		impd1->vcos[i].data = impd1,
+		impd1->vcos[i].setvco = impd1_setvco;
+
+		clk_register(&impd1->vcos[i]);
+	}
+
 	for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
 		struct impd1_device *idev = impd1_devs + i;
 		struct amba_device *d;
@@ -175,12 +388,10 @@ static int impd1_probe(struct lm_device *dev)
 
 		pc_base = dev->resource.start + idev->offset;
 
-		d = kmalloc(sizeof(struct amba_device), GFP_KERNEL);
+		d = kzalloc(sizeof(struct amba_device), GFP_KERNEL);
 		if (!d)
 			continue;
 
-		memset(d, 0, sizeof(struct amba_device));
-
 		snprintf(d->dev.bus_id, sizeof(d->dev.bus_id),
 			 "lm%x:%5.5lx", dev->id, idev->offset >> 12);
 
@@ -191,6 +402,7 @@ static int impd1_probe(struct lm_device *dev)
 		d->irq[0]	= dev->irq;
 		d->irq[1]	= dev->irq;
 		d->periphid	= idev->id;
+		d->dev.platform_data = idev->platform_data;
 
 		ret = amba_device_register(d, &dev->resource);
 		if (ret) {
@@ -205,23 +417,27 @@ static int impd1_probe(struct lm_device *dev)
  free_impd1:
 	if (impd1 && impd1->base)
 		iounmap(impd1->base);
-	if (impd1)
-		kfree(impd1);
+	kfree(impd1);
  release_lm:
 	release_mem_region(dev->resource.start, SZ_4K);
 	return ret;
 }
 
+static int impd1_remove_one(struct device *dev, void *data)
+{
+	device_unregister(dev);
+	return 0;
+}
+
 static void impd1_remove(struct lm_device *dev)
 {
 	struct impd1_module *impd1 = lm_get_drvdata(dev);
-	struct list_head *l, *n;
+	int i;
 
-	list_for_each_safe(l, n, &dev->dev.children) {
-		struct device *d = list_to_dev(l);
+	device_for_each_child(&dev->dev, NULL, impd1_remove_one);
 
-		device_unregister(d);
-	}
+	for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++)
+		clk_unregister(&impd1->vcos[i]);
 
 	lm_set_drvdata(dev, NULL);