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[PATCH 01/15] ppc/ppc405: Change kernel load address
From: |
Cédric Le Goater |
Subject: |
[PATCH 01/15] ppc/ppc405: Change kernel load address |
Date: |
Mon, 6 Dec 2021 11:36:58 +0100 |
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.leroy@c-s.fr>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211202191446.1292125-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@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
- [PATCH 00/15] ppc/ppc405: decade cleanup, Cédric Le Goater, 2021/12/06
- [PATCH 01/15] ppc/ppc405: Change kernel load address,
Cédric Le Goater <=
- [PATCH 04/15] ppc/ppc405: Convert printfs to trace-events, Cédric Le Goater, 2021/12/06
- [PATCH 02/15] ppc: Mark the 'taihu' machine as deprecated, Cédric Le Goater, 2021/12/06
- [PATCH 03/15] ppc: Add trace-events for DCR accesses, Cédric Le Goater, 2021/12/06
- [PATCH 06/15] ppc/ppc405: Change ppc405ep_init() return value, Cédric Le Goater, 2021/12/06
- [PATCH 13/15] ppc/ppc405: Fix bi_pci_enetaddr2 field in U-Boot board information, Cédric Le Goater, 2021/12/06
- [PATCH 14/15] ppc/ppc405: Add update of bi_procfreq field, Cédric Le Goater, 2021/12/06
- [PATCH 08/15] ppc/ppc405: Remove flash support, Cédric Le Goater, 2021/12/06