/* * 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/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); }