[deliverable/linux.git] / drivers / video / leo.c

/* leo.c: LEO frame buffer driver
 *
 * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
 * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
 * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
 *
 * Driver layout based loosely on tgafb.c, see that file for credits.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>
#include <linux/of_device.h>
#include <linux/io.h>

#include <asm/fbio.h>

#include "sbuslib.h"

/*
 * Local functions.
 */

static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
			 unsigned, struct fb_info *);
static int leo_blank(int, struct fb_info *);

static int leo_mmap(struct fb_info *, struct vm_area_struct *);
static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);

/*
 *  Frame buffer operations
 */

static struct fb_ops leo_ops = {
	.owner			= THIS_MODULE,
	.fb_setcolreg		= leo_setcolreg,
	.fb_blank		= leo_blank,
	.fb_fillrect		= cfb_fillrect,
	.fb_copyarea		= cfb_copyarea,
	.fb_imageblit		= cfb_imageblit,
	.fb_mmap		= leo_mmap,
	.fb_ioctl		= leo_ioctl,
#ifdef CONFIG_COMPAT
	.fb_compat_ioctl	= sbusfb_compat_ioctl,
#endif
};

#define LEO_OFF_LC_SS0_KRN	0x00200000UL
#define LEO_OFF_LC_SS0_USR	0x00201000UL
#define LEO_OFF_LC_SS1_KRN	0x01200000UL
#define LEO_OFF_LC_SS1_USR	0x01201000UL
#define LEO_OFF_LD_SS0		0x00400000UL
#define LEO_OFF_LD_SS1		0x01400000UL
#define LEO_OFF_LD_GBL		0x00401000UL
#define LEO_OFF_LX_KRN		0x00600000UL
#define LEO_OFF_LX_CURSOR	0x00601000UL
#define LEO_OFF_SS0		0x00800000UL
#define LEO_OFF_SS1		0x01800000UL
#define LEO_OFF_UNK		0x00602000UL
#define LEO_OFF_UNK2		0x00000000UL

#define LEO_CUR_ENABLE		0x00000080
#define LEO_CUR_UPDATE		0x00000030
#define LEO_CUR_PROGRESS	0x00000006
#define LEO_CUR_UPDATECMAP	0x00000003

#define LEO_CUR_TYPE_MASK	0x00000000
#define LEO_CUR_TYPE_IMAGE	0x00000020
#define LEO_CUR_TYPE_CMAP	0x00000050

struct leo_cursor {
	u8	xxx0[16];
	u32	cur_type;
	u32	cur_misc;
	u32	cur_cursxy;
	u32	cur_data;
};

#define LEO_KRN_TYPE_CLUT0	0x00001000
#define LEO_KRN_TYPE_CLUT1	0x00001001
#define LEO_KRN_TYPE_CLUT2	0x00001002
#define LEO_KRN_TYPE_WID	0x00001003
#define LEO_KRN_TYPE_UNK	0x00001006
#define LEO_KRN_TYPE_VIDEO	0x00002003
#define LEO_KRN_TYPE_CLUTDATA	0x00004000
#define LEO_KRN_CSR_ENABLE	0x00000008
#define LEO_KRN_CSR_PROGRESS	0x00000004
#define LEO_KRN_CSR_UNK		0x00000002
#define LEO_KRN_CSR_UNK2	0x00000001

struct leo_lx_krn {
	u32	krn_type;
	u32	krn_csr;
	u32	krn_value;
};

struct leo_lc_ss0_krn {
	u32 	misc;
	u8	xxx0[0x800-4];
	u32	rev;
};

struct leo_lc_ss0_usr {
	u32	csr;
	u32	addrspace;
	u32 	fontmsk;
	u32	fontt;
	u32	extent;
	u32	src;
	u32	dst;
	u32	copy;
	u32	fill;
};

struct leo_lc_ss1_krn {
	u8	unknown;
};

struct leo_lc_ss1_usr {
	u8	unknown;
};

struct leo_ld_ss0 {
	u8	xxx0[0xe00];
	u32	csr;
	u32	wid;
	u32	wmask;
	u32	widclip;
	u32	vclipmin;
	u32	vclipmax;
	u32	pickmin;	/* SS1 only */
	u32	pickmax;	/* SS1 only */
	u32	fg;
	u32	bg;
	u32	src;		/* Copy/Scroll (SS0 only) */
	u32	dst;		/* Copy/Scroll/Fill (SS0 only) */
	u32	extent;		/* Copy/Scroll/Fill size (SS0 only) */
	u32	xxx1[3];
	u32	setsem;		/* SS1 only */
	u32	clrsem;		/* SS1 only */
	u32	clrpick;	/* SS1 only */
	u32	clrdat;		/* SS1 only */
	u32	alpha;		/* SS1 only */
	u8	xxx2[0x2c];
	u32	winbg;
	u32	planemask;
	u32	rop;
	u32	z;
	u32	dczf;		/* SS1 only */
	u32	dczb;		/* SS1 only */
	u32	dcs;		/* SS1 only */
	u32	dczs;		/* SS1 only */
	u32	pickfb;		/* SS1 only */
	u32	pickbb;		/* SS1 only */
	u32	dcfc;		/* SS1 only */
	u32	forcecol;	/* SS1 only */
	u32	door[8];	/* SS1 only */
	u32	pick[5];	/* SS1 only */
};

#define LEO_SS1_MISC_ENABLE	0x00000001
#define LEO_SS1_MISC_STEREO	0x00000002
struct leo_ld_ss1 {
	u8	xxx0[0xef4];
	u32	ss1_misc;
};

struct leo_ld_gbl {
	u8	unknown;
};

struct leo_par {
	spinlock_t		lock;
	struct leo_lx_krn	__iomem *lx_krn;
	struct leo_lc_ss0_usr	__iomem *lc_ss0_usr;
	struct leo_ld_ss0	__iomem *ld_ss0;
	struct leo_ld_ss1	__iomem *ld_ss1;
	struct leo_cursor	__iomem *cursor;
	u32			extent;
	u32			clut_data[256];

	u32			flags;
#define LEO_FLAG_BLANKED	0x00000001

	unsigned long		physbase;
	unsigned long		which_io;
	unsigned long		fbsize;
};

static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
{
	int i;

	for (i = 0;
	     (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
	     i < 300000;
	     i++)
		udelay(1); /* Busy wait at most 0.3 sec */
	return;
}

/**
 *      leo_setcolreg - Optional function. Sets a color register.
 *      @regno: boolean, 0 copy local, 1 get_user() function
 *      @red: frame buffer colormap structure
 *      @green: The green value which can be up to 16 bits wide
 *      @blue:  The blue value which can be up to 16 bits wide.
 *      @transp: If supported the alpha value which can be up to 16 bits wide.
 *      @info: frame buffer info structure
 */
static int leo_setcolreg(unsigned regno,
			 unsigned red, unsigned green, unsigned blue,
			 unsigned transp, struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	unsigned long flags;
	u32 val;
	int i;

	if (regno >= 256)
		return 1;

	red >>= 8;
	green >>= 8;
	blue >>= 8;

	par->clut_data[regno] = red | (green << 8) | (blue << 16);

	spin_lock_irqsave(&par->lock, flags);

	leo_wait(lx_krn);

	sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
	for (i = 0; i < 256; i++)
		sbus_writel(par->clut_data[i], &lx_krn->krn_value);
	sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);

	val = sbus_readl(&lx_krn->krn_csr);
	val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
	sbus_writel(val, &lx_krn->krn_csr);

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

/**
 *      leo_blank - Optional function.  Blanks the display.
 *      @blank_mode: the blank mode we want.
 *      @info: frame buffer structure that represents a single frame buffer
 */
static int leo_blank(int blank, struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	unsigned long flags;
	u32 val;

	spin_lock_irqsave(&par->lock, flags);

	switch (blank) {
	case FB_BLANK_UNBLANK: /* Unblanking */
		val = sbus_readl(&lx_krn->krn_csr);
		val |= LEO_KRN_CSR_ENABLE;
		sbus_writel(val, &lx_krn->krn_csr);
		par->flags &= ~LEO_FLAG_BLANKED;
		break;

	case FB_BLANK_NORMAL: /* Normal blanking */
	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
	case FB_BLANK_POWERDOWN: /* Poweroff */
		val = sbus_readl(&lx_krn->krn_csr);
		val &= ~LEO_KRN_CSR_ENABLE;
		sbus_writel(val, &lx_krn->krn_csr);
		par->flags |= LEO_FLAG_BLANKED;
		break;
	}

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

static struct sbus_mmap_map leo_mmap_map[] = {
	{
		.voff	= LEO_SS0_MAP,
		.poff	= LEO_OFF_SS0,
		.size	= 0x800000
	},
	{
		.voff	= LEO_LC_SS0_USR_MAP,
		.poff	= LEO_OFF_LC_SS0_USR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_SS0_MAP,
		.poff	= LEO_OFF_LD_SS0,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LX_CURSOR_MAP,
		.poff	= LEO_OFF_LX_CURSOR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_SS1_MAP,
		.poff	= LEO_OFF_SS1,
		.size	= 0x800000
	},
	{
		.voff	= LEO_LC_SS1_USR_MAP,
		.poff	= LEO_OFF_LC_SS1_USR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_SS1_MAP,
		.poff	= LEO_OFF_LD_SS1,
		.size	= 0x1000
	},
	{
		.voff	= LEO_UNK_MAP,
		.poff	= LEO_OFF_UNK,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LX_KRN_MAP,
		.poff	= LEO_OFF_LX_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LC_SS0_KRN_MAP,
		.poff	= LEO_OFF_LC_SS0_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LC_SS1_KRN_MAP,
		.poff	= LEO_OFF_LC_SS1_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_GBL_MAP,
		.poff	= LEO_OFF_LD_GBL,
		.size	= 0x1000
	},
	{
		.voff	= LEO_UNK2_MAP,
		.poff	= LEO_OFF_UNK2,
		.size	= 0x100000
	},
	{ .size = 0 }
};

static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
	struct leo_par *par = (struct leo_par *)info->par;

	return sbusfb_mmap_helper(leo_mmap_map,
				  par->physbase, par->fbsize,
				  par->which_io, vma);
}

static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
{
	struct leo_par *par = (struct leo_par *) info->par;

	return sbusfb_ioctl_helper(cmd, arg, info,
				   FBTYPE_SUNLEO, 32, par->fbsize);
}

/*
 *  Initialisation
 */

static void
leo_init_fix(struct fb_info *info, struct device_node *dp)
{
	strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));

	info->fix.type = FB_TYPE_PACKED_PIXELS;
	info->fix.visual = FB_VISUAL_TRUECOLOR;

	info->fix.line_length = 8192;

	info->fix.accel = FB_ACCEL_SUN_LEO;
}

static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	struct fb_wid_item *wi;
	unsigned long flags;
	u32 val;
	int i, j;

	spin_lock_irqsave(&par->lock, flags);

	leo_wait(lx_krn);

	for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
		switch (wi->wi_type) {
		case FB_WID_DBL_8:
			j = (wi->wi_index & 0xf) + 0x40;
			break;

		case FB_WID_DBL_24:
			j = wi->wi_index & 0x3f;
			break;

		default:
			continue;
		};
		sbus_writel(0x5800 + j, &lx_krn->krn_type);
		sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
	}
	sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);

	val = sbus_readl(&lx_krn->krn_csr);
	val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
	sbus_writel(val, &lx_krn->krn_csr);

	spin_unlock_irqrestore(&par->lock, flags);
}

static void leo_init_wids(struct fb_info *info)
{
	struct fb_wid_item wi;
	struct fb_wid_list wl;

	wl.wl_count = 1;
	wl.wl_list = &wi;
	wi.wi_type = FB_WID_DBL_8;
	wi.wi_index = 0;
	wi.wi_values [0] = 0x2c0;
	leo_wid_put(info, &wl);
	wi.wi_index = 1;
	wi.wi_values [0] = 0x30;
	leo_wid_put(info, &wl);
	wi.wi_index = 2;
	wi.wi_values [0] = 0x20;
	leo_wid_put(info, &wl);
	wi.wi_type = FB_WID_DBL_24;
	wi.wi_index = 1;
	wi.wi_values [0] = 0x30;
	leo_wid_put(info, &wl);
}

static void leo_switch_from_graph(struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
	unsigned long flags;
	u32 val;

	spin_lock_irqsave(&par->lock, flags);

	par->extent = ((info->var.xres - 1) |
		       ((info->var.yres - 1) << 16));

	sbus_writel(0xffffffff, &ss->wid);
	sbus_writel(0xffff, &ss->wmask);
	sbus_writel(0, &ss->vclipmin);
	sbus_writel(par->extent, &ss->vclipmax);
	sbus_writel(0, &ss->fg);
	sbus_writel(0xff000000, &ss->planemask);
	sbus_writel(0x310850, &ss->rop);
	sbus_writel(0, &ss->widclip);
	sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
		    &par->lc_ss0_usr->extent);
	sbus_writel(4, &par->lc_ss0_usr->addrspace);
	sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
	sbus_writel(0, &par->lc_ss0_usr->fontt);
	do {
		val = sbus_readl(&par->lc_ss0_usr->csr);
	} while (val & 0x20000000);

	/* setup screen buffer for cfb_* functions */
	sbus_writel(1, &ss->wid);
	sbus_writel(0x00ffffff, &ss->planemask);
	sbus_writel(0x310b90, &ss->rop);
	sbus_writel(0, &par->lc_ss0_usr->addrspace);

	spin_unlock_irqrestore(&par->lock, flags);
}

static void leo_init_hw(struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	u32 val;

	val = sbus_readl(&par->ld_ss1->ss1_misc);
	val |= LEO_SS1_MISC_ENABLE;
	sbus_writel(val, &par->ld_ss1->ss1_misc);

	leo_switch_from_graph(info);
}

static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
{
	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;
}

static void leo_unmap_regs(struct of_device *op, struct fb_info *info,
			   struct leo_par *par)
{
	if (par->lc_ss0_usr)
		of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
	if (par->ld_ss0)
		of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
	if (par->ld_ss1)
		of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
	if (par->lx_krn)
		of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
	if (par->cursor)
		of_iounmap(&op->resource[0],
			   par->cursor, sizeof(struct leo_cursor));
	if (info->screen_base)
		of_iounmap(&op->resource[0], info->screen_base, 0x800000);
}

static int __devinit leo_probe(struct of_device *op,
			       const struct of_device_id *match)
{
	struct device_node *dp = op->node;
	struct fb_info *info;
	struct leo_par *par;
	int linebytes, err;

	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);

	err = -ENOMEM;
	if (!info)
		goto out_err;
	par = info->par;

	spin_lock_init(&par->lock);

	par->physbase = op->resource[0].start;
	par->which_io = op->resource[0].flags & IORESOURCE_BITS;

	sbusfb_fill_var(&info->var, dp, 32);
	leo_fixup_var_rgb(&info->var);

	linebytes = of_getintprop_default(dp, "linebytes",
					  info->var.xres);
	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);

	par->lc_ss0_usr =
		of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
			   0x1000, "leolc ss0usr");
	par->ld_ss0 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
			   0x1000, "leold ss0");
	par->ld_ss1 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
			   0x1000, "leold ss1");
	par->lx_krn =
		of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
			   0x1000, "leolx krn");
	par->cursor =
		of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
			   sizeof(struct leo_cursor), "leolx cursor");
	info->screen_base =
		of_ioremap(&op->resource[0], LEO_OFF_SS0,
			   0x800000, "leo ram");
	if (!par->lc_ss0_usr ||
	    !par->ld_ss0 ||
	    !par->ld_ss1 ||
	    !par->lx_krn ||
	    !par->cursor ||
	    !info->screen_base)
		goto out_unmap_regs;

	info->flags = FBINFO_DEFAULT;
	info->fbops = &leo_ops;
	info->pseudo_palette = par->clut_data;

	leo_init_wids(info);
	leo_init_hw(info);

	leo_blank(FB_BLANK_UNBLANK, info);

	if (fb_alloc_cmap(&info->cmap, 256, 0))
		goto out_unmap_regs;

	leo_init_fix(info, dp);

	err = register_framebuffer(info);
	if (err < 0)
		goto out_dealloc_cmap;

	dev_set_drvdata(&op->dev, info);

	printk(KERN_INFO "%s: leo at %lx:%lx\n",
	       dp->full_name,
	       par->which_io, par->physbase);

	return 0;

out_dealloc_cmap:
	fb_dealloc_cmap(&info->cmap);

out_unmap_regs:
	leo_unmap_regs(op, info, par);
	framebuffer_release(info);

out_err:
	return err;
}

static int __devexit leo_remove(struct of_device *op)
{
	struct fb_info *info = dev_get_drvdata(&op->dev);
	struct leo_par *par = info->par;

	unregister_framebuffer(info);
	fb_dealloc_cmap(&info->cmap);

	leo_unmap_regs(op, info, par);

	framebuffer_release(info);

	dev_set_drvdata(&op->dev, NULL);

	return 0;
}

static struct of_device_id leo_match[] = {
	{
		.name = "SUNW,leo",
	},
	{},
};
MODULE_DEVICE_TABLE(of, leo_match);

static struct of_platform_driver leo_driver = {
	.name		= "leo",
	.match_table	= leo_match,
	.probe		= leo_probe,
	.remove		= __devexit_p(leo_remove),
};

static int __init leo_init(void)
{
	if (fb_get_options("leofb", NULL))
		return -ENODEV;

	return of_register_driver(&leo_driver, &of_bus_type);
}

static void __exit leo_exit(void)
{
	of_unregister_driver(&leo_driver);
}

module_init(leo_init);
module_exit(leo_exit);

MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/* leo.c: LEO frame buffer driver
1da177e4 LT	2	*
50312ce9	3	* Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
1da177e4 LT	4	* Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
	5	* Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
	6	*
	7	* Driver layout based loosely on tgafb.c, see that file for credits.
	8	*/
	9
	10	#include <linux/module.h>
	11	#include <linux/kernel.h>
	12	#include <linux/errno.h>
	13	#include <linux/string.h>
	14	#include <linux/slab.h>
	15	#include <linux/delay.h>
	16	#include <linux/init.h>
	17	#include <linux/fb.h>
	18	#include <linux/mm.h>
6cd5a86b	19	#include <linux/of_device.h>
738eca74	20	#include <linux/io.h>
1da177e4	21
1da177e4 LT	22	#include <asm/fbio.h>
	23
	24	#include "sbuslib.h"
	25
	26	/*
	27	* Local functions.
	28	*/
	29
	30	static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
	31	unsigned, struct fb_info *);
	32	static int leo_blank(int, struct fb_info *);
	33
216d526c	34	static int leo_mmap(struct fb_info , struct vm_area_struct );
67a6680d	35	static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
1da177e4 LT	36
	37	/*
	38	* Frame buffer operations
	39	*/
	40
	41	static struct fb_ops leo_ops = {
	42	.owner = THIS_MODULE,
	43	.fb_setcolreg = leo_setcolreg,
	44	.fb_blank = leo_blank,
1da177e4 LT	45	.fb_fillrect = cfb_fillrect,
	46	.fb_copyarea = cfb_copyarea,
	47	.fb_imageblit = cfb_imageblit,
	48	.fb_mmap = leo_mmap,
	49	.fb_ioctl = leo_ioctl,
9ffb83bc CH	50	#ifdef CONFIG_COMPAT
	51	.fb_compat_ioctl = sbusfb_compat_ioctl,
	52	#endif
1da177e4 LT	53	};
	54
	55	#define LEO_OFF_LC_SS0_KRN 0x00200000UL
	56	#define LEO_OFF_LC_SS0_USR 0x00201000UL
	57	#define LEO_OFF_LC_SS1_KRN 0x01200000UL
	58	#define LEO_OFF_LC_SS1_USR 0x01201000UL
	59	#define LEO_OFF_LD_SS0 0x00400000UL
	60	#define LEO_OFF_LD_SS1 0x01400000UL
	61	#define LEO_OFF_LD_GBL 0x00401000UL
	62	#define LEO_OFF_LX_KRN 0x00600000UL
	63	#define LEO_OFF_LX_CURSOR 0x00601000UL
	64	#define LEO_OFF_SS0 0x00800000UL
	65	#define LEO_OFF_SS1 0x01800000UL
	66	#define LEO_OFF_UNK 0x00602000UL
	67	#define LEO_OFF_UNK2 0x00000000UL
	68
	69	#define LEO_CUR_ENABLE 0x00000080
	70	#define LEO_CUR_UPDATE 0x00000030
	71	#define LEO_CUR_PROGRESS 0x00000006
	72	#define LEO_CUR_UPDATECMAP 0x00000003
	73
	74	#define LEO_CUR_TYPE_MASK 0x00000000
	75	#define LEO_CUR_TYPE_IMAGE 0x00000020
	76	#define LEO_CUR_TYPE_CMAP 0x00000050
	77
	78	struct leo_cursor {
738eca74	79	u8 xxx0[16];
50312ce9 DM	80	u32 cur_type;
	81	u32 cur_misc;
	82	u32 cur_cursxy;
	83	u32 cur_data;
1da177e4 LT	84	};
	85
	86	#define LEO_KRN_TYPE_CLUT0 0x00001000
	87	#define LEO_KRN_TYPE_CLUT1 0x00001001
	88	#define LEO_KRN_TYPE_CLUT2 0x00001002
	89	#define LEO_KRN_TYPE_WID 0x00001003
	90	#define LEO_KRN_TYPE_UNK 0x00001006
	91	#define LEO_KRN_TYPE_VIDEO 0x00002003
	92	#define LEO_KRN_TYPE_CLUTDATA 0x00004000
	93	#define LEO_KRN_CSR_ENABLE 0x00000008
	94	#define LEO_KRN_CSR_PROGRESS 0x00000004
	95	#define LEO_KRN_CSR_UNK 0x00000002
	96	#define LEO_KRN_CSR_UNK2 0x00000001
	97
	98	struct leo_lx_krn {
50312ce9 DM	99	u32 krn_type;
	100	u32 krn_csr;
	101	u32 krn_value;
1da177e4 LT	102	};
	103
	104	struct leo_lc_ss0_krn {
50312ce9	105	u32 misc;
738eca74	106	u8 xxx0[0x800-4];
50312ce9	107	u32 rev;
1da177e4 LT	108	};
	109
	110	struct leo_lc_ss0_usr {
50312ce9 DM	111	u32 csr;
	112	u32 addrspace;
	113	u32 fontmsk;
	114	u32 fontt;
	115	u32 extent;
	116	u32 src;
738eca74	117	u32 dst;
50312ce9 DM	118	u32 copy;
50312ce9 DM	119	u32 fill;
1da177e4 LT	120	};
	121
	122	struct leo_lc_ss1_krn {
	123	u8 unknown;
	124	};
	125
	126	struct leo_lc_ss1_usr {
	127	u8 unknown;
	128	};
	129
738eca74 RR	130	struct leo_ld_ss0 {
738eca74 RR	131	u8 xxx0[0xe00];
50312ce9 DM	132	u32 csr;
	133	u32 wid;
	134	u32 wmask;
	135	u32 widclip;
	136	u32 vclipmin;
	137	u32 vclipmax;
	138	u32 pickmin; /* SS1 only */
	139	u32 pickmax; /* SS1 only */
	140	u32 fg;
	141	u32 bg;
	142	u32 src; /* Copy/Scroll (SS0 only) */
	143	u32 dst; /* Copy/Scroll/Fill (SS0 only) */
	144	u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
738eca74	145	u32 xxx1[3];
50312ce9 DM	146	u32 setsem; /* SS1 only */
	147	u32 clrsem; /* SS1 only */
	148	u32 clrpick; /* SS1 only */
	149	u32 clrdat; /* SS1 only */
	150	u32 alpha; /* SS1 only */
738eca74	151	u8 xxx2[0x2c];
50312ce9 DM	152	u32 winbg;
	153	u32 planemask;
	154	u32 rop;
	155	u32 z;
	156	u32 dczf; /* SS1 only */
	157	u32 dczb; /* SS1 only */
	158	u32 dcs; /* SS1 only */
	159	u32 dczs; /* SS1 only */
	160	u32 pickfb; /* SS1 only */
	161	u32 pickbb; /* SS1 only */
	162	u32 dcfc; /* SS1 only */
	163	u32 forcecol; /* SS1 only */
	164	u32 door[8]; /* SS1 only */
	165	u32 pick[5]; /* SS1 only */
1da177e4 LT	166	};
	167
	168	#define LEO_SS1_MISC_ENABLE 0x00000001
	169	#define LEO_SS1_MISC_STEREO 0x00000002
	170	struct leo_ld_ss1 {
50312ce9 DM	171	u8 xxx0[0xef4];
50312ce9 DM	172	u32 ss1_misc;
1da177e4 LT	173	};
	174
	175	struct leo_ld_gbl {
	176	u8 unknown;
	177	};
	178
	179	struct leo_par {
	180	spinlock_t lock;
	181	struct leo_lx_krn __iomem *lx_krn;
	182	struct leo_lc_ss0_usr __iomem *lc_ss0_usr;
	183	struct leo_ld_ss0 __iomem *ld_ss0;
	184	struct leo_ld_ss1 __iomem *ld_ss1;
	185	struct leo_cursor __iomem *cursor;
	186	u32 extent;
	187	u32 clut_data[256];
	188
	189	u32 flags;
	190	#define LEO_FLAG_BLANKED 0x00000001
	191
	192	unsigned long physbase;
50312ce9	193	unsigned long which_io;
1da177e4	194	unsigned long fbsize;
1da177e4 LT	195	};
	196
	197	static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
	198	{
	199	int i;
738eca74	200
1da177e4	201	for (i = 0;
738eca74 RR	202	(sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
738eca74 RR	203	i < 300000;
1da177e4	204	i++)
738eca74	205	udelay(1); /* Busy wait at most 0.3 sec */
1da177e4 LT	206	return;
	207	}
	208
	209	/**
	210	* leo_setcolreg - Optional function. Sets a color register.
	211	* @regno: boolean, 0 copy local, 1 get_user() function
	212	* @red: frame buffer colormap structure
	213	* @green: The green value which can be up to 16 bits wide
	214	* @blue: The blue value which can be up to 16 bits wide.
	215	* @transp: If supported the alpha value which can be up to 16 bits wide.
	216	* @info: frame buffer info structure
	217	*/
	218	static int leo_setcolreg(unsigned regno,
	219	unsigned red, unsigned green, unsigned blue,
	220	unsigned transp, struct fb_info *info)
	221	{
	222	struct leo_par par = (struct leo_par ) info->par;
738eca74	223	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
1da177e4 LT	224	unsigned long flags;
	225	u32 val;
	226	int i;
	227
	228	if (regno >= 256)
	229	return 1;
	230
	231	red >>= 8;
	232	green >>= 8;
	233	blue >>= 8;
	234
	235	par->clut_data[regno] = red \| (green << 8) \| (blue << 16);
	236
	237	spin_lock_irqsave(&par->lock, flags);
	238
	239	leo_wait(lx_krn);
	240
	241	sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
	242	for (i = 0; i < 256; i++)
	243	sbus_writel(par->clut_data[i], &lx_krn->krn_value);
	244	sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
	245
	246	val = sbus_readl(&lx_krn->krn_csr);
	247	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	248	sbus_writel(val, &lx_krn->krn_csr);
	249
	250	spin_unlock_irqrestore(&par->lock, flags);
	251
	252	return 0;
	253	}
	254
	255	/**
	256	* leo_blank - Optional function. Blanks the display.
	257	* @blank_mode: the blank mode we want.
	258	* @info: frame buffer structure that represents a single frame buffer
	259	*/
	260	static int leo_blank(int blank, struct fb_info *info)
	261	{
	262	struct leo_par par = (struct leo_par ) info->par;
	263	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	264	unsigned long flags;
	265	u32 val;
	266
	267	spin_lock_irqsave(&par->lock, flags);
	268
	269	switch (blank) {
	270	case FB_BLANK_UNBLANK: /* Unblanking */
	271	val = sbus_readl(&lx_krn->krn_csr);
	272	val \|= LEO_KRN_CSR_ENABLE;
	273	sbus_writel(val, &lx_krn->krn_csr);
	274	par->flags &= ~LEO_FLAG_BLANKED;
	275	break;
	276
	277	case FB_BLANK_NORMAL: /* Normal blanking */
	278	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
	279	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
	280	case FB_BLANK_POWERDOWN: /* Poweroff */
	281	val = sbus_readl(&lx_krn->krn_csr);
	282	val &= ~LEO_KRN_CSR_ENABLE;
	283	sbus_writel(val, &lx_krn->krn_csr);
	284	par->flags \|= LEO_FLAG_BLANKED;
	285	break;
	286	}
	287
288	spin_unlock_irqrestore(&par->lock, flags);
289
290	return 0;
291	}
292
293	static struct sbus_mmap_map leo_mmap_map[] = {
294	{
295	.voff = LEO_SS0_MAP,
296	.poff = LEO_OFF_SS0,
297	.size = 0x800000
298	},
299	{
300	.voff = LEO_LC_SS0_USR_MAP,
301	.poff = LEO_OFF_LC_SS0_USR,
302	.size = 0x1000
303	},
304	{
305	.voff = LEO_LD_SS0_MAP,
306	.poff = LEO_OFF_LD_SS0,
307	.size = 0x1000
308	},
309	{
310	.voff = LEO_LX_CURSOR_MAP,
311	.poff = LEO_OFF_LX_CURSOR,
312	.size = 0x1000
313	},
314	{
315	.voff = LEO_SS1_MAP,
316	.poff = LEO_OFF_SS1,
317	.size = 0x800000
318	},
319	{
320	.voff = LEO_LC_SS1_USR_MAP,
321	.poff = LEO_OFF_LC_SS1_USR,
322	.size = 0x1000
323	},
324	{
325	.voff = LEO_LD_SS1_MAP,
326	.poff = LEO_OFF_LD_SS1,
327	.size = 0x1000
328	},
329	{
330	.voff = LEO_UNK_MAP,
331	.poff = LEO_OFF_UNK,
332	.size = 0x1000
333	},
334	{
335	.voff = LEO_LX_KRN_MAP,
336	.poff = LEO_OFF_LX_KRN,
337	.size = 0x1000
338	},
339	{
340	.voff = LEO_LC_SS0_KRN_MAP,
341	.poff = LEO_OFF_LC_SS0_KRN,
342	.size = 0x1000
343	},
344	{
345	.voff = LEO_LC_SS1_KRN_MAP,
346	.poff = LEO_OFF_LC_SS1_KRN,
347	.size = 0x1000
348	},
349	{
350	.voff = LEO_LD_GBL_MAP,
351	.poff = LEO_OFF_LD_GBL,
352	.size = 0x1000
353	},
354	{
355	.voff = LEO_UNK2_MAP,
356	.poff = LEO_OFF_UNK2,
357	.size = 0x100000
358	},
359	{ .size = 0 }
360	};
361
216d526c	362	static int leo_mmap(struct fb_info info, struct vm_area_struct vma)
1da177e4 LT	363	{
	364	struct leo_par par = (struct leo_par )info->par;
	365
	366	return sbusfb_mmap_helper(leo_mmap_map,
	367	par->physbase, par->fbsize,
50312ce9	368	par->which_io, vma);
1da177e4 LT	369	}
1da177e4 LT	370
67a6680d	371	static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
1da177e4 LT	372	{
	373	struct leo_par par = (struct leo_par ) info->par;
	374
	375	return sbusfb_ioctl_helper(cmd, arg, info,
	376	FBTYPE_SUNLEO, 32, par->fbsize);
	377	}
	378
	379	/*
	380	* Initialisation
	381	*/
	382
	383	static void
50312ce9	384	leo_init_fix(struct fb_info info, struct device_node dp)
1da177e4	385	{
50312ce9	386	strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));
1da177e4 LT	387
	388	info->fix.type = FB_TYPE_PACKED_PIXELS;
	389	info->fix.visual = FB_VISUAL_TRUECOLOR;
	390
	391	info->fix.line_length = 8192;
	392
	393	info->fix.accel = FB_ACCEL_SUN_LEO;
	394	}
	395
	396	static void leo_wid_put(struct fb_info info, struct fb_wid_list wl)
	397	{
	398	struct leo_par par = (struct leo_par ) info->par;
	399	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	400	struct fb_wid_item *wi;
	401	unsigned long flags;
	402	u32 val;
	403	int i, j;
	404
	405	spin_lock_irqsave(&par->lock, flags);
	406
	407	leo_wait(lx_krn);
	408
	409	for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
738eca74	410	switch (wi->wi_type) {
1da177e4 LT	411	case FB_WID_DBL_8:
	412	j = (wi->wi_index & 0xf) + 0x40;
	413	break;
	414
	415	case FB_WID_DBL_24:
	416	j = wi->wi_index & 0x3f;
	417	break;
	418
	419	default:
	420	continue;
	421	};
	422	sbus_writel(0x5800 + j, &lx_krn->krn_type);
	423	sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
	424	}
	425	sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
	426
	427	val = sbus_readl(&lx_krn->krn_csr);
	428	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	429	sbus_writel(val, &lx_krn->krn_csr);
	430
	431	spin_unlock_irqrestore(&par->lock, flags);
	432	}
	433
	434	static void leo_init_wids(struct fb_info *info)
	435	{
	436	struct fb_wid_item wi;
	437	struct fb_wid_list wl;
	438
	439	wl.wl_count = 1;
	440	wl.wl_list = &wi;
	441	wi.wi_type = FB_WID_DBL_8;
	442	wi.wi_index = 0;
	443	wi.wi_values [0] = 0x2c0;
	444	leo_wid_put(info, &wl);
	445	wi.wi_index = 1;
	446	wi.wi_values [0] = 0x30;
	447	leo_wid_put(info, &wl);
	448	wi.wi_index = 2;
	449	wi.wi_values [0] = 0x20;
	450	leo_wid_put(info, &wl);
	451	wi.wi_type = FB_WID_DBL_24;
	452	wi.wi_index = 1;
	453	wi.wi_values [0] = 0x30;
	454	leo_wid_put(info, &wl);
1da177e4 LT	455	}
	456
	457	static void leo_switch_from_graph(struct fb_info *info)
	458	{
	459	struct leo_par par = (struct leo_par ) info->par;
738eca74	460	struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
1da177e4 LT	461	unsigned long flags;
	462	u32 val;
	463
	464	spin_lock_irqsave(&par->lock, flags);
	465
	466	par->extent = ((info->var.xres - 1) \|
	467	((info->var.yres - 1) << 16));
	468
	469	sbus_writel(0xffffffff, &ss->wid);
	470	sbus_writel(0xffff, &ss->wmask);
	471	sbus_writel(0, &ss->vclipmin);
	472	sbus_writel(par->extent, &ss->vclipmax);
	473	sbus_writel(0, &ss->fg);
	474	sbus_writel(0xff000000, &ss->planemask);
	475	sbus_writel(0x310850, &ss->rop);
	476	sbus_writel(0, &ss->widclip);
	477	sbus_writel((info->var.xres-1) \| ((info->var.yres-1) << 11),
	478	&par->lc_ss0_usr->extent);
	479	sbus_writel(4, &par->lc_ss0_usr->addrspace);
	480	sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
	481	sbus_writel(0, &par->lc_ss0_usr->fontt);
	482	do {
	483	val = sbus_readl(&par->lc_ss0_usr->csr);
	484	} while (val & 0x20000000);
	485
738eca74 RR	486	/* setup screen buffer for cfb_* functions */
	487	sbus_writel(1, &ss->wid);
	488	sbus_writel(0x00ffffff, &ss->planemask);
	489	sbus_writel(0x310b90, &ss->rop);
	490	sbus_writel(0, &par->lc_ss0_usr->addrspace);
1da177e4	491
738eca74	492	spin_unlock_irqrestore(&par->lock, flags);
1da177e4 LT	493	}
	494
	495	static void leo_init_hw(struct fb_info *info)
	496	{
	497	struct leo_par par = (struct leo_par ) info->par;
	498	u32 val;
	499
	500	val = sbus_readl(&par->ld_ss1->ss1_misc);
	501	val \|= LEO_SS1_MISC_ENABLE;
	502	sbus_writel(val, &par->ld_ss1->ss1_misc);
	503
	504	leo_switch_from_graph(info);
	505	}
	506
	507	static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
	508	{
	509	var->red.offset = 0;
	510	var->red.length = 8;
	511	var->green.offset = 8;
	512	var->green.length = 8;
	513	var->blue.offset = 16;
	514	var->blue.length = 8;
	515	var->transp.offset = 0;
	516	var->transp.length = 0;
	517	}
	518
c7f439b9 DM	519	static void leo_unmap_regs(struct of_device op, struct fb_info info,
c7f439b9 DM	520	struct leo_par *par)
1da177e4	521	{
c7f439b9 DM	522	if (par->lc_ss0_usr)
	523	of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
	524	if (par->ld_ss0)
	525	of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
	526	if (par->ld_ss1)
	527	of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
	528	if (par->lx_krn)
	529	of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
	530	if (par->cursor)
e3a411a3	531	of_iounmap(&op->resource[0],
c7f439b9 DM	532	par->cursor, sizeof(struct leo_cursor));
	533	if (info->screen_base)
	534	of_iounmap(&op->resource[0], info->screen_base, 0x800000);
50312ce9	535	}
1da177e4	536
738eca74 RR	537	static int __devinit leo_probe(struct of_device *op,
738eca74 RR	538	const struct of_device_id *match)
50312ce9 DM	539	{
50312ce9 DM	540	struct device_node *dp = op->node;
c7f439b9 DM	541	struct fb_info *info;
c7f439b9 DM	542	struct leo_par *par;
50312ce9	543	int linebytes, err;
1da177e4	544
c7f439b9 DM	545	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
	546
	547	err = -ENOMEM;
	548	if (!info)
	549	goto out_err;
	550	par = info->par;
1da177e4	551
c7f439b9	552	spin_lock_init(&par->lock);
1da177e4	553
c7f439b9 DM	554	par->physbase = op->resource[0].start;
c7f439b9 DM	555	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
1da177e4	556
6cd5a86b	557	sbusfb_fill_var(&info->var, dp, 32);
c7f439b9	558	leo_fixup_var_rgb(&info->var);
1da177e4	559
50312ce9	560	linebytes = of_getintprop_default(dp, "linebytes",
c7f439b9 DM	561	info->var.xres);
c7f439b9 DM	562	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
1da177e4	563
c7f439b9	564	par->lc_ss0_usr =
50312ce9 DM	565	of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
50312ce9 DM	566	0x1000, "leolc ss0usr");
c7f439b9	567	par->ld_ss0 =
50312ce9 DM	568	of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
50312ce9 DM	569	0x1000, "leold ss0");
c7f439b9	570	par->ld_ss1 =
50312ce9 DM	571	of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
50312ce9 DM	572	0x1000, "leold ss1");
c7f439b9	573	par->lx_krn =
50312ce9 DM	574	of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
50312ce9 DM	575	0x1000, "leolx krn");
c7f439b9	576	par->cursor =
50312ce9 DM	577	of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
50312ce9 DM	578	sizeof(struct leo_cursor), "leolx cursor");
c7f439b9	579	info->screen_base =
50312ce9 DM	580	of_ioremap(&op->resource[0], LEO_OFF_SS0,
50312ce9 DM	581	0x800000, "leo ram");
c7f439b9 DM	582	if (!par->lc_ss0_usr \|\|
	583	!par->ld_ss0 \|\|
	584	!par->ld_ss1 \|\|
	585	!par->lx_krn \|\|
	586	!par->cursor \|\|
	587	!info->screen_base)
	588	goto out_unmap_regs;
1da177e4	589
738eca74	590	info->flags = FBINFO_DEFAULT;
c7f439b9	591	info->fbops = &leo_ops;
738eca74	592	info->pseudo_palette = par->clut_data;
1da177e4	593
c7f439b9 DM	594	leo_init_wids(info);
c7f439b9 DM	595	leo_init_hw(info);
1da177e4	596
59f7137a	597	leo_blank(FB_BLANK_UNBLANK, info);
1da177e4	598
c7f439b9 DM	599	if (fb_alloc_cmap(&info->cmap, 256, 0))
c7f439b9 DM	600	goto out_unmap_regs;
1da177e4	601
c7f439b9	602	leo_init_fix(info, dp);
1da177e4	603
c7f439b9 DM	604	err = register_framebuffer(info);
	605	if (err < 0)
	606	goto out_dealloc_cmap;
1da177e4	607
c7f439b9	608	dev_set_drvdata(&op->dev, info);
50312ce9	609
194f1a68	610	printk(KERN_INFO "%s: leo at %lx:%lx\n",
50312ce9	611	dp->full_name,
c7f439b9	612	par->which_io, par->physbase);
1da177e4	613
50312ce9	614	return 0;
1da177e4	615
c7f439b9 DM	616	out_dealloc_cmap:
	617	fb_dealloc_cmap(&info->cmap);
	618
	619	out_unmap_regs:
	620	leo_unmap_regs(op, info, par);
	621	framebuffer_release(info);
1da177e4	622
c7f439b9 DM	623	out_err:
c7f439b9 DM	624	return err;
50312ce9	625	}
1da177e4	626
e3a411a3	627	static int __devexit leo_remove(struct of_device *op)
50312ce9	628	{
c7f439b9 DM	629	struct fb_info *info = dev_get_drvdata(&op->dev);
c7f439b9 DM	630	struct leo_par *par = info->par;
50312ce9	631
c7f439b9 DM	632	unregister_framebuffer(info);
c7f439b9 DM	633	fb_dealloc_cmap(&info->cmap);
50312ce9	634
c7f439b9	635	leo_unmap_regs(op, info, par);
50312ce9	636
c7f439b9	637	framebuffer_release(info);
50312ce9	638
e3a411a3	639	dev_set_drvdata(&op->dev, NULL);
1da177e4 LT	640
	641	return 0;
	642	}
	643
50312ce9 DM	644	static struct of_device_id leo_match[] = {
50312ce9 DM	645	{
738eca74	646	.name = "SUNW,leo",
50312ce9 DM	647	},
	648	{},
	649	};
	650	MODULE_DEVICE_TABLE(of, leo_match);
	651
	652	static struct of_platform_driver leo_driver = {
	653	.name = "leo",
	654	.match_table = leo_match,
	655	.probe = leo_probe,
	656	.remove = __devexit_p(leo_remove),
	657	};
1da177e4	658
50312ce9 DM	659	static int __init leo_init(void)
	660	{
	661	if (fb_get_options("leofb", NULL))
	662	return -ENODEV;
1da177e4	663
50312ce9	664	return of_register_driver(&leo_driver, &of_bus_type);
1da177e4 LT	665	}
1da177e4 LT	666
50312ce9	667	static void __exit leo_exit(void)
1da177e4	668	{
50312ce9	669	of_unregister_driver(&leo_driver);
1da177e4 LT	670	}
	671
	672	module_init(leo_init);
1da177e4	673	module_exit(leo_exit);
1da177e4 LT	674
1da177e4 LT	675	MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
50312ce9 DM	676	MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
50312ce9 DM	677	MODULE_VERSION("2.0");
1da177e4	678	MODULE_LICENSE("GPL");