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>
26 #include <linux/gfp.h>
30 #include <mach/netx-regs.h>
31 #include <mach/hardware.h>
33 static struct clcd_panel *netx_panel;
35 void netx_clcd_enable(struct clcd_fb *fb)
39 int netx_clcd_setup(struct clcd_fb *fb)
43 fb->panel = netx_panel;
45 fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, 1024 * 1024, &dma,
47 if (!fb->fb.screen_base) {
48 printk(KERN_ERR "CLCD: unable to map framebuffer\n");
52 fb->fb.fix.smem_start = dma;
53 fb->fb.fix.smem_len = 1024*1024;
58 int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
60 return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
61 fb->fb.fix.smem_start, fb->fb.fix.smem_len);
64 void netx_clcd_remove(struct clcd_fb *fb)
66 dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
67 fb->fb.fix.smem_start);
70 static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
72 int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
75 fb_device.dev.platform_data = board;
76 return amba_device_register(&fb_device, &iomem_resource);