diff options
Diffstat (limited to 'arch/arm/mach-netx/fb.c')
-rw-r--r-- | arch/arm/mach-netx/fb.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c new file mode 100644 index 000000000000..ef0ab6115c0b --- /dev/null +++ b/arch/arm/mach-netx/fb.c | |||
@@ -0,0 +1,114 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-netx/fb.c | ||
3 | * | ||
4 | * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix | ||
5 | * | ||
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. | ||
9 | * | ||
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. | ||
14 | * | ||
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 | ||
18 | */ | ||
19 | |||
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 | |||
26 | #include <asm/arch/netx-regs.h> | ||
27 | #include <asm/hardware.h> | ||
28 | |||
29 | struct clk {}; | ||
30 | |||
31 | static struct clk fb_clk; | ||
32 | |||
33 | static struct clcd_panel *netx_panel; | ||
34 | |||
35 | void netx_clcd_enable(struct clcd_fb *fb) | ||
36 | { | ||
37 | } | ||
38 | |||
39 | int netx_clcd_setup(struct clcd_fb *fb) | ||
40 | { | ||
41 | dma_addr_t dma; | ||
42 | |||
43 | fb->panel = netx_panel; | ||
44 | |||
45 | fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024, | ||
46 | &dma, GFP_KERNEL); | ||
47 | if (!fb->fb.screen_base) { | ||
48 | printk(KERN_ERR "CLCD: unable to map framebuffer\n"); | ||
49 | return -ENOMEM; | ||
50 | } | ||
51 | |||
52 | fb->fb.fix.smem_start = dma; | ||
53 | fb->fb.fix.smem_len = 1024*1024; | ||
54 | |||
55 | return 0; | ||
56 | } | ||
57 | |||
58 | int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma) | ||
59 | { | ||
60 | return dma_mmap_writecombine(&fb->dev->dev, vma, | ||
61 | fb->fb.screen_base, | ||
62 | fb->fb.fix.smem_start, | ||
63 | fb->fb.fix.smem_len); | ||
64 | } | ||
65 | |||
66 | void netx_clcd_remove(struct clcd_fb *fb) | ||
67 | { | ||
68 | dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len, | ||
69 | fb->fb.screen_base, fb->fb.fix.smem_start); | ||
70 | } | ||
71 | |||
72 | void clk_disable(struct clk *clk) | ||
73 | { | ||
74 | } | ||
75 | |||
76 | int clk_set_rate(struct clk *clk, unsigned long rate) | ||
77 | { | ||
78 | return 0; | ||
79 | } | ||
80 | |||
81 | int clk_enable(struct clk *clk) | ||
82 | { | ||
83 | return 0; | ||
84 | } | ||
85 | |||
86 | struct clk *clk_get(struct device *dev, const char *id) | ||
87 | { | ||
88 | return &fb_clk; | ||
89 | } | ||
90 | |||
91 | void clk_put(struct clk *clk) | ||
92 | { | ||
93 | } | ||
94 | |||
95 | static struct amba_device fb_device = { | ||
96 | .dev = { | ||
97 | .bus_id = "fb", | ||
98 | .coherent_dma_mask = ~0, | ||
99 | }, | ||
100 | .res = { | ||
101 | .start = 0x00104000, | ||
102 | .end = 0x00104fff, | ||
103 | .flags = IORESOURCE_MEM, | ||
104 | }, | ||
105 | .irq = { NETX_IRQ_LCD, NO_IRQ }, | ||
106 | .periphid = 0x10112400, | ||
107 | }; | ||
108 | |||
109 | int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel) | ||
110 | { | ||
111 | netx_panel = panel; | ||
112 | fb_device.dev.platform_data = board; | ||
113 | return amba_device_register(&fb_device, &iomem_resource); | ||
114 | } | ||