2 * arch/arm/mach-netx/fb.c
4 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <linux/device.h>
21 #include <linux/init.h>
22 #include <linux/dma-mapping.h>
23 #include <linux/amba/bus.h>
24 #include <linux/amba/clcd.h>
25 #include <linux/err.h>
27 #include <mach/netx-regs.h>
28 #include <mach/hardware.h>
30 static struct clcd_panel *netx_panel;
32 void netx_clcd_enable(struct clcd_fb *fb)
36 int netx_clcd_setup(struct clcd_fb *fb)
40 fb->panel = netx_panel;
42 fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,
44 if (!fb->fb.screen_base) {
45 printk(KERN_ERR "CLCD: unable to map framebuffer\n");
49 fb->fb.fix.smem_start = dma;
50 fb->fb.fix.smem_len = 1024*1024;
55 int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
57 return dma_mmap_writecombine(&fb->dev->dev, vma,
59 fb->fb.fix.smem_start,
63 void netx_clcd_remove(struct clcd_fb *fb)
65 dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
66 fb->fb.screen_base, fb->fb.fix.smem_start);
69 void clk_disable(struct clk *clk)
73 int clk_set_rate(struct clk *clk, unsigned long rate)
78 int clk_enable(struct clk *clk)
83 struct clk *clk_get(struct device *dev, const char *id)
85 return dev && strcmp(dev_name(dev), "fb") == 0 ? NULL : ERR_PTR(-ENOENT);
88 void clk_put(struct clk *clk)
92 static struct amba_device fb_device = {
95 .coherent_dma_mask = ~0,
100 .flags = IORESOURCE_MEM,
102 .irq = { NETX_IRQ_LCD, NO_IRQ },
103 .periphid = 0x10112400,
106 int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
109 fb_device.dev.platform_data = board;
110 return amba_device_register(&fb_device, &iomem_resource);