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115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/*
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* arch/arm/mach-netx/fb.c
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*
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* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/dma-mapping.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/clcd.h>
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#include <asm/arch/netx-regs.h>
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#include <asm/hardware.h>
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struct clk {};
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static struct clk fb_clk;
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static struct clcd_panel *netx_panel;
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void netx_clcd_enable(struct clcd_fb *fb)
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{
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}
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int netx_clcd_setup(struct clcd_fb *fb)
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{
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dma_addr_t dma;
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fb->panel = netx_panel;
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fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,
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&dma, GFP_KERNEL);
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if (!fb->fb.screen_base) {
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printk(KERN_ERR "CLCD: unable to map framebuffer\n");
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return -ENOMEM;
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}
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fb->fb.fix.smem_start = dma;
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fb->fb.fix.smem_len = 1024*1024;
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return 0;
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}
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int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
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{
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return dma_mmap_writecombine(&fb->dev->dev, vma,
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fb->fb.screen_base,
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fb->fb.fix.smem_start,
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fb->fb.fix.smem_len);
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}
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void netx_clcd_remove(struct clcd_fb *fb)
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{
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dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
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fb->fb.screen_base, fb->fb.fix.smem_start);
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}
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void clk_disable(struct clk *clk)
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{
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}
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int clk_set_rate(struct clk *clk, unsigned long rate)
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{
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return 0;
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}
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int clk_enable(struct clk *clk)
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{
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return 0;
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}
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struct clk *clk_get(struct device *dev, const char *id)
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{
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return &fb_clk;
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}
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void clk_put(struct clk *clk)
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{
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}
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static struct amba_device fb_device = {
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.dev = {
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.bus_id = "fb",
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.coherent_dma_mask = ~0,
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},
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.res = {
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.start = 0x00104000,
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.end = 0x00104fff,
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.flags = IORESOURCE_MEM,
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},
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.irq = { NETX_IRQ_LCD, NO_IRQ },
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.periphid = 0x10112400,
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};
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int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
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{
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netx_panel = panel;
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fb_device.dev.platform_data = board;
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return amba_device_register(&fb_device, &iomem_resource);
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}
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