c40fae9525
This patch syncs omap specific core code with linux-omap. Most of the changes are needed to fix bitrot caused by driver updates in linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
|
|
* 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
|
|
|
|
|