On Mon, Dec 08, 2014 at 12:27:29PM -0600, Robert Nelson wrote: > Well from: > http://www.ti.com/lit/pdf/swpu249 > > SWPU249AB OMAP543x Technical Reference Manual > > (non public, so you have to register with ti, etc..) > > Page 5959: > > <quote> > 28.3.7.6.4 Read Sector Procedure > The contents of an eMMC or SD card may be formatted as raw binary > (referred to as Raw(UDA) or within > a FAT file system. The ROM Code reads out sectors from raw image or > the booting file within the file > system and boots from it. > > • Raw mode > In Raw(UDA) mode, an image can be at one of the four consecutive > locations in the main area: offset > 0x0 (0 KiB)/0x20000 (128 KiB)/0x40000 (256 KiB)/0x60000 (384 KiB). For > this reason, the size of a > booting image must not exceed 128 KiB. However, a device with an image > greater than 128 KiB can > be flash starting at one of the aforementioned locations. Therefore, > the ROM code does not check the > image size. The only drawback is that the image crosses the subsequent > image boundary. Raw mode > is detected by reading sectors 0, 256, 512, and 768. The content of > these sectors is verified for the > presence of a TOC structure. For a GP device, a GP header must be > located at the beginning of the > booting image, as described in Section 28.3.8.2, Configuration Header. > Image data is read directly > from continuous sectors of a card. If raw mode is not detected, file > system mode is assumed. > </quote> > > PS... this dd locations also work for the upcoming AM572x > BeagleBoard-x15. (personally tested on the alpha boards) > > http://www.elinux.org/Beagleboard:BeagleBoard-X15 > > So all: > > omap4 > omap5 > am335x > am43xx > am57x
Does it work to have a partition table and to have the u-boot code raw at 128KiB? I was under the impression that didn't work, but did not try it. I should give it a try sometime. Of course the documentation also said the partition table had to be DOS style, yet a GPT works fine too (which is nice at least). -- Len Sorensen -- To UNSUBSCRIBE, email to debian-arm-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20141208215820.gx24...@csclub.uwaterloo.ca
