[ARM] 3572/1: netX: framebuffer driver for Hilscher netX

/*

 * arch/arm/mach-netx/fb.c

 *

 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix

 *

 * 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.

 *

 * 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

 */

#include <linux/device.h>

#include <linux/init.h>

#include <linux/dma-mapping.h>

#include <linux/amba/bus.h>

#include <linux/amba/clcd.h>

#include <asm/arch/netx-regs.h>

#include <asm/arch/hardware.h>

struct clk {};

static struct clk fb_clk;

static struct clcd_panel *netx_panel;

void netx_clcd_enable(struct clcd_fb *fb)

{

}

int netx_clcd_setup(struct clcd_fb *fb)

{

	dma_addr_t dma;

	fb->panel = netx_panel;

	fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,

						    &dma, GFP_KERNEL);

	if (!fb->fb.screen_base) {

		printk(KERN_ERR "CLCD: unable to map framebuffer\n");

		return -ENOMEM;

	}

	fb->fb.fix.smem_start	= dma;

	fb->fb.fix.smem_len	= 1024*1024;

	return 0;

}

int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)

{

	return dma_mmap_writecombine(&fb->dev->dev, vma,

				     fb->fb.screen_base,

				     fb->fb.fix.smem_start,

				     fb->fb.fix.smem_len);

}

void netx_clcd_remove(struct clcd_fb *fb)

{

	dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,

			      fb->fb.screen_base, fb->fb.fix.smem_start);

}

void clk_disable(struct clk *clk)

{

}

int clk_set_rate(struct clk *clk, unsigned long rate)

{

	return 0;

}

int clk_enable(struct clk *clk)

{

	return 0;

}

struct clk *clk_get(struct device *dev, const char *id)

{

	return &fb_clk;

}

void clk_put(struct clk *clk)

{

}

static struct amba_device fb_device = {

	.dev		= {

		.bus_id	= "fb",

		.coherent_dma_mask = ~0,

	},

	.res		= {

		.start	= 0x00104000,

		.end	= 0x00104fff,

		.flags	= IORESOURCE_MEM,

	},

	.irq		= { NETX_IRQ_LCD, NO_IRQ },

	.periphid	= 0x10112400,

};

int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)

{

	netx_panel = panel;

	fb_device.dev.platform_data = board;

	return amba_device_register(&fb_device, &iomem_resource);

}

/*

 * arch/arm/mach-netx/fb.h

 *

 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix

 *

 * 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.

 *

 * 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

 */

void netx_clcd_enable(struct clcd_fb *fb);

int netx_clcd_setup(struct clcd_fb *fb);

int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma);

void netx_clcd_remove(struct clcd_fb *fb);

int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel);