The default addresses to load the kernel, fdt, initrd of AMCC boards
in U-Boot v2015.10 are :
"kernel_addr_r=1000000\0"
"fdt_addr_r=1800000\0"
"ramdisk_addr_r=1900000\0"
The taihu is one of these boards, the ref405ep is not but we don't
have much information on it and both boards have a very similar
address space layout.
Also, if loaded at address 0, U-Boot will partially overwrite the
uImage because of a bug in get_ram_size() (U-Boot v2015.10) not
restoring properly the probed RAM contents and because the exception
vectors are installed in the same range. Finally, a gzipped kernel
image will be uncompressed at 0x0. These are all good reasons for not
mappping a kernel image at this address.
Change the kernel load address to match U-Boot expectations and fix
loading.
Cc: Christophe Leroy <christophe.le...@c-s.fr>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
Reviewed-by: Thomas Huth <th...@redhat.com>
Message-Id: <20211202191446.1292125-1-...@kaod.org>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
Message-Id: <20211206103712.1866296-2-...@kaod.org>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
hw/ppc/ppc405_boards.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/ppc/ppc405_boards.c b/hw/ppc/ppc405_boards.c
index 972a7a4a3e5d..b4249f4626e6 100644
--- a/hw/ppc/ppc405_boards.c
+++ b/hw/ppc/ppc405_boards.c
@@ -45,7 +45,7 @@
#define BIOS_FILENAME "ppc405_rom.bin"
#define BIOS_SIZE (2 * MiB)
-#define KERNEL_LOAD_ADDR 0x00000000
+#define KERNEL_LOAD_ADDR 0x01000000
#define INITRD_LOAD_ADDR 0x01800000
#define USE_FLASH_BIOS
--
2.31.1
