80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
|
#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;
|
||
|
|
|
||
|
|
omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
|
||
|
|
omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;
|
||
|
|
|
||
|
|
fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
|
||
|
|
|
||
|
|
if (fbmem_conf != NULL) {
|
||
|
|
/* indicate that the bootloader already initialized the
|
||
|
|
* fb device, so we'll skip that part in the fb driver
|
||
|
|
*/
|
||
|
|
omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
|
||
|
|
omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
|
||
|
|
if (fbmem_conf->fb_sdram_size) {
|
||
|
|
pr_info("Reserving %u bytes SDRAM for frame buffer\n",
|
||
|
|
fbmem_conf->fb_sdram_size);
|
||
|
|
reserve_bootmem(fbmem_conf->fb_sdram_start,
|
||
|
|
fbmem_conf->fb_sdram_size);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
|