/*
* File: arch/arm/plat-omap/fb.c
*
* Framebuffer device registration for TI OMAP platforms
*
* Copyright (C) 2006 Nokia Corporation
* Author: Imre Deak <imre.deak@nokia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* 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/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>
#include <asm/arch/board.h>
#include <asm/arch/sram.h>
#include <asm/arch/omapfb.h>
#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
static struct omapfb_platform_data omapfb_config;
static u64 omap_fb_dma_mask = ~(u32)0;
static struct platform_device omap_fb_device = {
.name = "omapfb",
.id = -1,
.dev = {
.dma_mask = &omap_fb_dma_mask,
.coherent_dma_mask = ~(u32)0,
.platform_data = &omapfb_config,
},
.num_resources = 0,
};
/* called from map_io */
void omapfb_reserve_mem(void)
{
const struct omap_fbmem_config *fbmem_conf;
unsigned long total_size;
int i;
if (!omap_fb_sram_valid) {
/* FBMEM SRAM configuration was already found to be invalid.
* Ignore the whole configuration block. */
omapfb_config.mem_desc.region_cnt = 0;
return;
}
i = 0;
total_size = 0;
while ((fbmem_conf = omap_get_nr_config(OMAP_TAG_FBMEM,
struct omap_fbmem_config, i)) != NULL) {
unsigned long start;
unsigned long size;
if (i == OMAPFB_PLANE_NUM) {
printk(KERN_ERR "ignoring extra plane info\n");
break;
}
start = fbmem_conf->start;
size = fbmem_conf->size;
omapfb_config.mem_desc.region[i].paddr = start;
omapfb_config.mem_desc.region[i].size = size;
if (omap_fb_sram_plane != i && start) {
reserve_bootmem(start, size);
total_size += size;
}
i++;
}
omapfb_config.mem_desc.region_cnt = i;
if (total_size)
pr_info("Reserving %lu bytes SDRAM for frame buffer\n",
total_size);
}
void omapfb_set_ctrl_platform_data(void *data)
{
omapfb_config.ctrl_platform_data = data;
}
static inline int omap_init_fb(void)
{
const struct omap_lcd_config *conf;
conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
if (conf == NULL)
return 0;
omapfb_config.lcd = *conf;
return platform_device_register(&omap_fb_device);
}
arch_initcall(omap_init_fb);
#else
void omapfb_reserve_mem(void) {}
#endif
