diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/tegra.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/tegra.c b/drivers/video/tegra.c index ab26ad0..750a283 100644 --- a/drivers/video/tegra.c +++ b/drivers/video/tegra.c @@ -146,6 +146,7 @@ static void update_panel_size(struct fdt_disp_config *config) void lcd_ctrl_init(void *lcdbase) { int line_length, size; + int type = DCACHE_OFF; assert(disp_config); @@ -161,6 +162,16 @@ void lcd_ctrl_init(void *lcdbase) update_panel_size(disp_config); size = lcd_get_size(&line_length); + /* Set up the LCD caching as requested */ + if (config.cache_type & FDT_LCD_CACHE_WRITE_THROUGH) + type = DCACHE_WRITETHROUGH; + else if (config.cache_type & FDT_LCD_CACHE_WRITE_BACK) + type = DCACHE_WRITEBACK; + mmu_set_region_dcache_behaviour(disp_config->frame_buffer, size, type); + + /* Enable flushing after LCD writes if requested */ + lcd_set_flush_dcache(config.cache_type & FDT_LCD_CACHE_FLUSH); + debug("LCD frame buffer at %p\n", lcd_base); } |