# Build Targets ## Litex ### Try 32BE and 64LE software builds #### 64LE ``` a2o.py --csr-csv csr.csv # completes OK and build/cmod7_kintex/software is created ``` #### 32BE ``` a2o_32.py --csr-csv csr.csv Running test binary command: /data/projects/a2o/dev/build/litex/build/cmod7_kintex/software/libc/meson-private/sanitycheckc.exe C compiler for the build machine: ccache cc (gcc 9.4.0 "cc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0") C linker for the build machine: cc ld.bfd 2.34 Build machine cpu family: x86_64 Build machine cpu: x86_64 Host machine cpu family: ppc Host machine cpu: a2o Target machine cpu family: ppc Target machine cpu: a2o ../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/meson.build:99:2: ERROR: Problem encountered: Unsupported architecture: "ppc" ``` * change core.py cpu_family="powerpc"; warning only :) ``` a2o_32.py --csr-csv csr.csv ... WARNING: Unknown CPU family powerpc, please report this at https://github.com/mesonbuild/meson/issues/new ... [15/795] Compiling C object newlib/libc.a.p/libc_machine_powerpc_setjmp.S.o FAILED: newlib/libc.a.p/libc_machine_powerpc_setjmp.S.o powerpc-linux-gnu-gcc -Inewlib/libc.a.p -Inewlib -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib -Inewlib/libm/common -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libm/common -Inewlib/libc/machine/powerpc -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/machine/powerpc -Inewlib/libc/tinystdio -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/tinystdio -I. -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data -Inewlib/libc/include -I../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/include -I/home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/tinystdio -I/home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/include -I/data/projects/litex/litex/soc/software/libbase -I/data/projects/litex/litex/soc/software/include -I/data/projects/litex/litex/soc/software -I/data/projects/a2o/dev/build/litex/build/cmod7_kintex/software/include -I/data/projects/a2o/dev/build/litex/build/cmod7_kintex/software/include/../libc -I/data/projects/a2o/dev/build/litex/a2o -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -std=c18 -Os -g -ffunction-sections -Os -mcpu=a2 -m32 -mbig-endian -fomit-frame-pointer -fno-builtin -fno-stack-protector -fexceptions -D__a2o__ -g3 -fomit-frame-pointer -Wall -fno-builtin -fno-stack-protector -fexceptions -Wpragmas -include /data/projects/a2o/dev/build/litex/build/cmod7_kintex/software/libc/picolibc.h -fno-stack-protector -U_FORTIFY_SOURCE -fno-common -frounding-math -DFORMAT_DEFAULT_INTEGER -Werror=implicit-function-declaration -Werror=vla -Warray-bounds -Wold-style-definition -Wno-missing-braces -Wno-implicit-int -Wno-return-type -D_COMPILING_NEWLIB -MD -MQ newlib/libc.a.p/libc_machine_powerpc_setjmp.S.o -MF newlib/libc.a.p/libc_machine_powerpc_setjmp.S.o.d -o newlib/libc.a.p/libc_machine_powerpc_setjmp.S.o -c ../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/machine/powerpc/setjmp.S ../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/machine/powerpc/setjmp.S:30:2: error: #error 32-bit 30 | #error 32-bit ``` * get rid of forced error in data/newlib/libc/machine/powerpc/setjmp.S ``` cd pythondata-software-picolibc$ # //#error 32-bit pip3 install . ``` ``` a2o_32.py --csr-csv csr.csv ../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/include/machine/endian.h:74:30: error: expected statement before ‘)’ token 74 | #define ntohl(_x) __ntohl(_x)) | ^ ../../../../../../../../../../home/wtf/.local/lib/python3.8/site-packages/pythondata_software_picolibc/data/newlib/libc/xdr/xdr_rec.c:827:12: note: in expansion of macro ‘ntohl’ 827 | header = ntohl (header); | ^~~~~ [438/795] Compiling C object newlib/libc.a.p/libc_time_strftime.c.o ninja: build stopped: subcommand failed. ``` * fix syntax in data/newlib/libc/include/machine/endian.h ``` cd pythondata-software-picolibc$ # #define htonl(_x) __htonl(_x) # #define htons(_x) __htons(_x) # #define ntohl(_x) __ntohl(_x) # #define ntohs(_x) __ntohs(_x) pip3 install . ``` * add crt0savres.s for missing 32b functions * now compiles and builds * seems semi-copacetic so far ``` powerpc-linux-gnu-objdump -d build/cmod7_kintex/software/bios/bios.elf > bios_32.d ``` #### Core and wishbone wrapper with extra stuff for Litex integration * create a2o/core.py and a2o.py (SOC) from a2p * makes it through vivado compile * cleaned up some various minor rtl warnings * added parm to cmod7 platform to allow replacing the target fpga device; trying arty-200 to see if it fits as-is - no, but can override? ``` ERROR: [DRC UTLZ-1] Resource utilization: Slice LUTs over-utilized in Top Level Design (This design requires more Slice LUTs cells than are available in the target device. This design requires 212846 of such cell types but only 134600 compatible sites are available in the target device. Please analyze your synthesis results and constraints to ensure the design is mapped to Xilinx primitives as expected. If so, please consider targeting a larger device. Please set tcl parameter "drc.disableLUTOverUtilError" to 1 to change this error to warning.) ``` * try adding ```set drc.disableLUTOverUtilError 1``` to build script and running... ``` cd build/cmod7/gateware vivado -mode tcl -source cmod7.tcl ``` * doesn't change results * try in gui: ``` set_property SEVERITY WARNING [get_drc_checks {DRC UTLZ-1}] WARNING: [Vivado 12-4383] DRC UTLZ-1 may not change severity ``` * do get the synth util report; iu=25% lq=28% xu=12% rv=16% fu=9% mmu=8% ``` +-----------------------------------------+--------------------------------------------+------------+------------+---------+------+-------+--------+--------+------------+ | Instance | Module | Total LUTs | Logic LUTs | LUTRAMs | SRLs | FFs | RAMB36 | RAMB18 | DSP Blocks | +-----------------------------------------+--------------------------------------------+------------+------------+---------+------+-------+--------+--------+------------+ | cmod7 | (top) | 212875 | 210949 | 1924 | 2 | 83329 | 116 | 13 | 0 | | (cmod7) | (top) | 162 | 146 | 16 | 0 | 312 | 20 | 1 | 0 | | a2owb | a2owb | 212713 | 210803 | 1908 | 2 | 83017 | 96 | 12 | 0 | | c0 | c | 212222 | 210312 | 1908 | 2 | 82296 | 96 | 12 | 0 | | fupc | c_fu_pc | 20918 | 20317 | 600 | 1 | 7726 | 0 | 0 | 0 | | iuq0 | iuq | 54334 | 53794 | 540 | 0 | 19339 | 25 | 6 | 0 | | lq0 | lq | 60745 | 60744 | 0 | 1 | 26090 | 49 | 6 | mmu0 | mmq | 16032 | 16032 | 0 | 0 | 8151 | 21 | | rv0 | rv | 34548 | 34292 | 256 | 0 | 9989 | 0 | 0 | 0 | | xu0 | xu | 25469 | 24957 | 512 | 0 | 10997 | 1 | | n0 | a2l2wb | 491 | 491 | 0 | 0 | 721 | 0 | 0 | 0 | +-----------------------------------------+--------------------------------------------+------------+------------+---------+------+-------+--------+--------+------------+ ``` * errors to check in source: a lot of critical warnings are vdd vs VCC and gnd vs GND; are these inouts and ties missing? ## 7k410tffv676-1 clk1x=50MHz ``` | c0 | c | 241529 | 240987 | 540 | 2 | 95676 | 96 | 12 | 0 | ```