diff options
Diffstat (limited to 'drivers/video/simplefb.c')
| -rw-r--r-- | drivers/video/simplefb.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c index 8d0772d4e51..631ae00b1e1 100644 --- a/drivers/video/simplefb.c +++ b/drivers/video/simplefb.c @@ -9,6 +9,8 @@ #include <log.h> #include <video.h> #include <asm/global_data.h> +#include <asm/system.h> +#include <linux/sizes.h> static int simple_video_probe(struct udevice *dev) { @@ -20,8 +22,14 @@ static int simple_video_probe(struct udevice *dev) fdt_addr_t base; fdt_size_t size; u32 width, height, stride, rot; + struct ofnode_phandle_args args; + + ret = dev_read_phandle_with_args(dev, "memory-region", NULL, 0, 0, &args); + if (ret) + base = dev_read_addr_size(dev, &size); + else + base = ofnode_get_addr_size(args.node, "reg", &size); - base = dev_read_addr_size(dev, &size); if (base == FDT_ADDR_T_NONE) { debug("%s: Failed to decode memory region\n", __func__); return -EINVAL; @@ -37,6 +45,13 @@ static int simple_video_probe(struct udevice *dev) plat->base = base; plat->size = size; +#ifdef CONFIG_ARM64 + /* The framebuffer buffer might not be mapped on some devices */ + if (plat->base % SZ_4K) + log_warning("Framebuffer base %lx is not 4k aligned!\n", plat->base); + mmu_map_region((phys_addr_t)plat->base, (phys_addr_t)ALIGN(plat->size, SZ_4K), false); +#endif + video_set_flush_dcache(dev, true); debug("%s: Query resolution...\n", __func__); |