From mboxrd@z Thu Jan 1 00:00:00 1970 From: Westergreen, Dalon Date: Sun, 29 Jan 2017 02:14:42 +0000 Subject: [U-Boot] [PATCH] SPL: add support to boot from a partition type In-Reply-To: <20170129020559.GA5096@bill-the-cat> References: <1485645609-21831-1-git-send-email-dwesterg@gmail.com> <20170129000631.GN22316@bill-the-cat> <1485655155.12609.51.camel@intel.com> <20170129020559.GA5096@bill-the-cat> Message-ID: <1485656080.12609.57.camel@intel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Sat, 2017-01-28 at 21:05 -0500, Tom Rini wrote: > On Sun, Jan 29, 2017 at 01:59:17AM +0000, Westergreen, Dalon wrote: > > > > On Sat, 2017-01-28 at 19:06 -0500, Tom Rini wrote: > > > > > > On Sat, Jan 28, 2017 at 03:20:09PM -0800, Dalon Westergreen wrote: > > > > > > > > > > > > > > > From: Dalon Westergreen > > > > > > > > the socfpga bootrom supports mmc booting from either a raw image > > > > starting at 0x0, or from a partition of type 0xa2.??This patch > > > > adds support for locating the boot image in the first type 0xa2 > > > > partition found. > > > > > > > > Signed-off-by: Dalon Westergreen > > > > --- > > > > ?common/spl/Kconfig???| 17 +++++++++++++++++ > > > > ?common/spl/spl_mmc.c | 45 ++++++++++++++++++++++++++++++++++++++++++++- > > > > ?disk/part_dos.c??????|??1 + > > > > ?include/part.h???????|??1 + > > > > ?4 files changed, 63 insertions(+), 1 deletion(-) > > > > > > Today socfpga sets SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION to 1.??Do you > > > really have enough cases where the special partition isn't going to be > > > likely known when building U-Boot for a given platform? > > All of our kits actually ship with the third partition being the 0xa2 > > partition. ?Normally the 1 partition is the fat partition. ?I want to > > support the case where the 0xa2 partition is arbitrary and used only for > > the SPL. ?the 1 partition is a fat partition with the full u-boot image. > > Er, this code is where we determine where to load U-Boot from, SPL is > running.??So if I follow you, the bootrom would load SPL from the > partition with 0xa2 as the type, usually #3 and then we load U-Boot from > the FAT partition (which would be SPL_FS_LOAD_PAYLOAD_NAME and such) ? > yes, or if FAT isn't enabled, the spl would load the image in the 0xa2 partition or the?CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION offset by CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR. ?Both are reasonable and? supported. ?my current thought is if partition = -1 and? CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE is set then search for the a2 partition. ?work for you? --dalon