The Sam460ex Haiku port=======================Complications for this port comes from the fact that the CPU used was designed for embedded devices,and has a much simpler MMU than the one on desktop machines. As a result, completely differentmemory management code needs to be written.U-Boot commands---------------no-fdt no-initrd****************seems the U-Boot input buffer is quite limited, can't paste much more on single line in minicomsetenv ipaddr 192.168.4.100; tftpboot 0x4000000 192.168.4.2:haiku_loader_linux.ub; bootm 0x4000000with FDT and tgz as initrd**************************setenv ipaddr 192.168.4.100tftpboot 0x4000000 192.168.4.2:haiku_loader_linux.ubtftpboot 0x8000000 192.168.4.2:haiku_initrd.ubtftpboot 0xc000000 192.168.4.2:sam460ex.dtbfdt addr 0xc000000fdt headerbootm 0x4000000 0x8000000 0xc000000 plopfor environment***************setenv booth1 'setenv ipaddr 192.168.4.100; tftpboot 0x4000000 192.168.4.2:haiku_loader_linux.ub'setenv booth2 'tftpboot 0x8000000 192.168.4.2:haiku_initrd.ub'setenv booth3 'tftpboot 0xc000000 192.168.4.2:sam460ex.dtb'setenv booth4 'bootm 0x4000000 0x8000000 0xc000000 plop'setenv booth 'run booth1; run booth2; run booth3; run booth4'saveenvrun boothTODOs-----* U-Boot API?* move Partenope hack to proper official U-Boot API?* reserved regs?BoardSetup +=:?TARGET_BOOT_CCFLAGS += -ffixed-r2 -ffixed-r14 -ffixed-r29 ;TARGET_BOOT_C++FLAGS += -ffixed-r2 -ffixed-r14 -ffixed-r29 ;* kdebug/disasm/ppc http://code.google.com/p/ppcd/Other ports-----------* `AROS port <https://www.gitorious.org/aros/aros/commits/sam460>`_* `Linux port <http://kernel.org/doc/ols/2003/ols2003-pages-340-350.pdf>`_* `NetBSD <https://wiki.netbsd.org/users/rkujawa/sam4x0/>`_PowerPC information-------------------Classic******** http://class.ee.iastate.edu/cpre211/labs/quickrefPPC.html* http://www.ibm.com/developerworks/library/l-ppc/* http://www.csd.uwo.ca/~mburrel/stuff/ppc-asm.htmlBook-E******* http://www.linux-kvm.org/page/PowerPC_Book_E_MMU* http://wiki.freebsd.org/powerpc/BookE* http://en.wikipedia.org/wiki/Memory_management_unit#PowerPCePAPR****** https://www.power.org/wp-content/uploads/2012/06/Power_ePAPR_APPROVED_v1.1.pdf* PPC440: http://elinux.org/Book_E_and_PPC_440amcc 4x0********* http://c0ff33.net/drop/PPC440_UM2013.pdf* http://www.embeddeddeveloper.com/assets/processors/amcc/datasheets/PP460EX_DS2063.pdfFreescale 440*************This version has a different mmu!!* http://www.freescale.com/files/32bit/doc/white_paper/POWRPCARCPRMRM.pdfFDT---* http://www.denx.de/wiki/U-Boot/UBootFdtInfo* http://wiki.freebsd.org/FlattenedDeviceTree#Supporting_library_.28libfdt.29* (see also arm docs)Sam440 dts*********** http://lxr.linux.no/linux+v3.4/arch/powerpc/boot/dts/sam440ep.dts* Sam460ex dts: identical to amcc,Canyonlands !?* http://www.denx.de/wiki/view/DULG/Appendix#Section_13.1.OpenFirmware framebuffer************************(not really usable from U-Boot (yet?))* http://www.feedface.com/howto/forth.html* http://mail-index.netbsd.org/port-macppc/2004/12/13/0046.html* http://lists.freebsd.org/pipermail/svn-src-user/2012-January/004806.html* http://www.openfirmware.info/Bindings