For unknown reasons the A33 needs the end of the memory we report to the
kernel to be aligned to a multiple of 4 MiB. Without this things will hang
when we hand over control to the kernel.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
drivers/video/sunxi_display.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c
index e132b75..7a63094 100644
--- a/drivers/video/sunxi_display.c
+++ b/drivers/video/sunxi_display.c
@@ -1275,6 +1275,15 @@ int sunxi_simplefb_setup(void *blob)
*/
start = gd->bd->bi_dram[0].start;
size = gd->bd->bi_dram[0].size - sunxi_display.fb_size;
+ /*
+ * For unknown reasons the A33 needs the end of the memory we report to
+ * the kernel to be aligned to a multiple of 4 MiB. Without this things
+ * will hang when we hand over control to the kernel.
+ */
+#ifdef CONFIG_MACH_SUN8I_A33
+ size &= ~(4 * 1024 * 1024 - 1);
+#endif
+
ret = fdt_fixup_memory_banks(blob, &start, &size, 1);
if (ret) {
eprintf("Cannot setup simplefb: Error reserving memory\n");
--
2.3.4
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