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diff --git a/PandaBoardPkg/readme.txt b/PandaBoardPkg/readme.txt new file mode 100644 index 000000000..fee17d8fb --- /dev/null +++ b/PandaBoardPkg/readme.txt @@ -0,0 +1,179 @@ +A. Overview +=========== + +The Panda packages are hosted on http://gitorious.org/omap-romcode/omap-edk2 +This repository contains the latest developments concerning UEFI on PandaBoard. +Contact: o-deprez@ti.com + +Patches from omap-edk2 tree are regularly merged on need basis to +http://git.linaro.org/gitweb?p=arm/uefi/uefi-next.git by Linaro maintainer. + +B. Environment setup +==================== + + 1. Toolchain + ------------ + +PandaBoardPkg was built/tested using gcc version 4.6 on an Ubuntu Precise machine. + +For a list of possible toolchains visit: +http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPkg/Toolchain + + 2. Install necessary package + ---------------------------- + +Install uuid-dev package if not present already: + +sudo apt-get install uuid-dev + +C. Building +=========== + +Build information is found on uefi-next summary page: +http://git.linaro.org/gitweb?p=arm/uefi/uefi-next.git;a=summary + +After cloning the Linaro EDK2 tree and before compiling the PandaBoardPkg, +you must apply following patch to ArmPlatformPkg: + + git apply PandaBoardPkg/patches/0001-Add-call-to-early-prepi-init-in-ModuleEntryPoint.patch + +Compilation is done with following command: + + cd PandaBoardPkg + ./build.sh -b RELEASE + +Note: the Debug version is compiled by invoking build.sh without parameters or: + + ./build.sh -b DEBUG + +D. Running EDK2 on Panda +======================== + + 1. UEFI Shell + ------------- + +If you just intend to see how UEFI boots up and make a try with the shell, you +can do a raw copy of the firmware image to an SD card (e.g. /dev/sdc): + + dd if=edk2/Build/PandaBoard/RELEASE_ARMGCC/FV/MLO of=/dev/sdc + +Open your favorite serial terminal e.g. + minicom -b 115200 -D /dev/ttyS0 -8 --color=on -w -o + +Plug serial and power cables. + +After few seconds, the following boot menu shall pop up: + + [1] Linux from SD + - VenHw(100C2CFA-B586-4198-9B4C-1683D195B1DA)/HD(1,MBR,0x00000000,0x3F,0 + x19FC0)/uImage + - Initrd: VenHw(100C2CFA-B586-4198-9B4C-1683D195B1DA)/HD(1,MBR,0x0000000 + 0,0x3F,0x19FC0)/uInitrd + - Arguments: console=ttyO2,115200n8 root=/dev/mmcblk0p2 earlyprintk root + wait ro fixrtc nocompcache vram=48M omapfb.vram=0:24M + - LoaderType: Linux kernel with global FDT + ----------------------- + Global FDT Config + - VenHw(100C2CFA-B586-4198-9B4C-1683D195B1DA)/HD(1,MBR,0x00000000,0x3F,0 + x19FC0)/board.dtb + ----------------------- + [a] Boot Manager + [b] Shell + Start: + +From there, type 'b' for starting the shell. + + 2. Starting a Linux kernel + -------------------------- + +Check following page: http://releases.linaro.org/13.01/ubuntu/panda + +The easiest way is to get a full boot+filesystem image: +wget http://releases.linaro.org/13.01/ubuntu/boards/panda/panda-quantal_developer_20130128-58.img.gz + +Unzip and dd to an sd card as described on Linaro's website. + +Note: on OMAP, usage of earlyprintk statement on kernel command line looks incompatible with device tree. +Indeed early print routines use legacy machine type id to identify which uart module to use. +In case of device tree based boot the machine type passed to kernel entry by Bds is 0xFFFFFFFF, +which is unknown to earlyprintk routines and result in a hang. + +E. Boards tested +================ + +PandaBoard Rev EA2 - EBL and linux boot (PANDA_EDK2_080912) +PandaBoard Rev A3 - Shell and linux boot (PANDA_EDK2_030113) +PandaBoard ES Rev B1 - Shell (PANDA_EDK2_030113) + +Note: Panda ES did not fully boot up linaro 13.01 image thru UEFI (stuck at L2 cache init). + +F. chtool +========= + +The PandaBoardPkg/Tools directory contains a tool called chtool for creating +a Configuration Header block for use with the ROM Code boot sequence (in this port +it serves as configuration of OMAP DPLLs, system clocks, and initlization of external SDRAM). + +This tool is tracked in the following tree: git://gitorious.org/omap-romcode/chtool.git + +The version of chtool present in PandaBoardPkg is v0.4. + +G. History +========== + +03/01/2013 PANDA_EDK2_030113 + Added patch early PrePi init patch to ArmPlatformPkg + Board revision + Cleaned up Pad conf + Cleaned up setup clocks acceleration + Enable 1GB support + Add usb host support + Use null sd card's uuid + +01/28/2013 PANDA_EDK2_012813 + Created an edk2 top dir, moved packages in this dir + +11/21/2012 PANDA_EDK2_112112 + Add TWL6030 PMIC support + Update GPMC base address + Remove unused drivers (Flash, MMCHSDxe, InterruptDxe, SemihostFs) + Change PcdCoreCount to 2 + Change default boot type to Fdt + Update linux machine type to PandaBoard + +11/09/2012 PANDA_EDK2_110912 + Fix build.sh removing tmp.bin temporary file + Fix SerialPollGetControl with returning correct Control parm + Comment out Semihostfs from PandaBoardPkg.fdf + +08/09/2012 PANDA_EDK2_080912 + Boots linux "OMAP Ubuntu Core" kernel + +06/25/2012 PANDA_EDK2_062512 + First drop able to boot EBL + +H. Resources +============ + +Panda Board - TI OMAP4 +*http://pandaboard.org + +Beagle Board - TI OMAP3 +*http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=BeagleBoardPkg + +ArmPlatformPkg - Generic package for ARM platforms +*http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPlatformPkg + +I. To do/next steps +=================== + +-Enable Network +-Enable display/gui +-Add a CHMMCSD item in ROM's Configuration Header to accelerate image copy from SD to external RAM + +-DONE 03/01/2013 Enable USB host capability +-DONE 03/01/2013 Enable >512MiB external SDRAM +-DONE 03/01/2013 Clean PandaBoardLib for: detection of PandaBoard revision, pad conf, clocks speed up (if necessary) +-DONE 11/21/2012 Add PMIC management e.g. for SD card detection +-DONE 08/09/2012 Boot up linux kernel +-DONE 08/09/2012 Switch to linaro-uefi-2012.04 tag |