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 different memory 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 minicom setenv ipaddr 192.168.4.100; tftpboot 0x4000000 192.168.4.2:haiku_loader_linux.ub; bootm 0x4000000 with FDT and tgz as initrd ************************** setenv ipaddr 192.168.4.100 tftpboot 0x4000000 192.168.4.2:haiku_loader_linux.ub tftpboot 0x8000000 192.168.4.2:haiku_initrd.ub tftpboot 0xc000000 192.168.4.2:sam460ex.dtb fdt addr 0xc000000 fdt header bootm 0x4000000 0x8000000 0xc000000 plop for 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' saveenv run booth TODOs ----- * 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 `_ * `Linux port `_ * `NetBSD `_ 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.html Book-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#PowerPC ePAPR ***** * https://www.power.org/wp-content/uploads/2012/06/Power_ePAPR_APPROVED_v1.1.pdf * PPC440: http://elinux.org/Book_E_and_PPC_440 amcc 4x0 ******** * http://c0ff33.net/drop/PPC440_UM2013.pdf * http://www.embeddeddeveloper.com/assets/processors/amcc/datasheets/PP460EX_DS2063.pdf Freescale 440 ************* This version has a different mmu!! * http://www.freescale.com/files/32bit/doc/white_paper/POWRPCARCPRMRM.pdf FDT --- * 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