From mboxrd@z Thu Jan 1 00:00:00 1970 From: Timur Tabi Date: Thu, 25 Jan 2007 09:44:46 -0600 Subject: [U-Boot-Users] [PATCH] Abort booting if the DTB version is incompatible Message-ID: <11697398863084-git-send-email-timur@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de U-Boot only supports version 16 of the device tree file format, although some versions of the device tree compiler generate version 3 by default. With this patch, U-Boot now checks the version number and aborts the boot process if the version of the device tree passed on the bootm command line is not compatible. Signed-off-by: Timur Tabi --- common/cmd_bootm.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 0c092c7..9111cbd 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -741,6 +741,16 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int fl hdr = (image_header_t *)of_flat_tree; if (*(ulong *)of_flat_tree == OF_DT_HEADER) { + struct boot_param_header *bph = + (struct boot_param_header *) of_flat_tree; + + if ((OF_DT_VERSION < be32_to_cpu(bph->last_comp_version)) || + (OF_DT_VERSION > be32_to_cpu(bph->version))) { + printf("ERROR: DTB version %u is not compatible with version %u " \ + "(last_comp_version=%u)\n", be32_to_cpu(bph->version), + OF_DT_VERSION, be32_to_cpu(bph->last_comp_version)); + return; + } #ifndef CFG_NO_FLASH if (addr2info((ulong)of_flat_tree) != NULL) of_data = (ulong)of_flat_tree; -- 1.4.4