CONFIG_OF_LIBFDT allows bootm/bootz to pass a device tree to the kernel.
Set bi_boot_params to define where ATAGs will be written (extracted from work by Oleksandr Tymoshenko gonzo@bluezbox.com).
Add ATAG support for bootm/bootz. Newer kernels use device tree, so this isn't that useful. However, old kernels all use board files, so this might still see some use.
Enable bootz command to allow booting a zImage directly.
Signed-off-by: Stephen Warren swarren@wwwdotorg.org --- v2: Squashed the following commits into one: ARM: rpi_b: add ATAG support for bootm/bootz ARM: rpi_b: set bi_boot_params ARM: rpi_b: enable CONFIG_OF_LIBFDT ARM: rpi_b: enabled bootz command --- board/raspberrypi/rpi_b/rpi_b.c | 2 ++ include/configs/rpi_b.h | 8 ++++++++ 2 files changed, 10 insertions(+)
diff --git a/board/raspberrypi/rpi_b/rpi_b.c b/board/raspberrypi/rpi_b/rpi_b.c index f39440f..26df74b 100644 --- a/board/raspberrypi/rpi_b/rpi_b.c +++ b/board/raspberrypi/rpi_b/rpi_b.c @@ -28,5 +28,7 @@ int dram_init(void)
int board_init(void) { + gd->bd->bi_boot_params = 0x100; + return 0; } diff --git a/include/configs/rpi_b.h b/include/configs/rpi_b.h index f34cc03..9c96d0e 100644 --- a/include/configs/rpi_b.h +++ b/include/configs/rpi_b.h @@ -81,10 +81,18 @@
/* Commands */ #include <config_cmd_default.h> +#define CONFIG_CMD_BOOTZ /* Some things don't make sense on this HW or yet */ #undef CONFIG_CMD_FPGA #undef CONFIG_CMD_NET #undef CONFIG_CMD_NFS #undef CONFIG_CMD_SAVEENV
+/* Device tree support for bootm/bootz */ +#define CONFIG_OF_LIBFDT +/* ATAGs support for bootm/bootz */ +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_CMDLINE_TAG +#define CONFIG_INITRD_TAG + #endif