| Sascha Hauer | 3095faf | 2006-06-19 13:30:58 +0100 | [diff] [blame] | 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> |
| Russell King | ea75ee9 | 2006-06-20 19:53:16 +0100 | [diff] [blame] | 27 | #include <asm/hardware.h> |
| Sascha Hauer | 3095faf | 2006-06-19 13:30:58 +0100 | [diff] [blame] | 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 | } |