board: rpi: Pass CMA through from firmware DT

For a lot of usecases, such as display, camera, media
the Raspberry Pi needs a lot more CMA than distros
configure as default so we should pass this parameter
through so things work as expected. Fix a spelling
mistake while we're at it.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Brugger <mbrugger@suse.com>

diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 9122f33d88d04591c9a3356272735ca8900b868a..5b6df53bbf987cd729be38222ce4d9fdbe47ef4d 100644 (file)
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -545,12 +545,15 @@ void  update_fdt_from_fw(void *fdt, void *fw_fdt)
        if (fdt == fw_fdt)
                return;
 
-       /* The firmware provides a more precie model; so copy that */
+       /* The firmware provides a more precise model; so copy that */
        copy_property(fdt, fw_fdt, "/", "model");
 
        /* memory reserve as suggested by the firmware */
        copy_property(fdt, fw_fdt, "/", "memreserve");
 
+       /* copy the CMA memory setting from the firmware DT to linux */
+       copy_property(fdt, fw_fdt, "/reserved-memory/linux,cma", "size");
+
        /* Adjust dma-ranges for the SD card and PCI bus as they can depend on
         * the SoC revision
         */