diff options
| -rwxr-xr-x | sw/Makefile | 9 | ||||
| -rw-r--r-- | sw/configure-fpga.sh | 13 | ||||
| -rw-r--r-- | sw/devmem3.c | 40 |
3 files changed, 59 insertions, 3 deletions
diff --git a/sw/Makefile b/sw/Makefile index fc5faa6..928466e 100755 --- a/sw/Makefile +++ b/sw/Makefile @@ -3,7 +3,7 @@ AR = ar CFLAGS = -Wall -fPIC LIB = libcryptech.a -BIN = hash hash_tester trng_extractor trng_tester aes_tester modexp_tester +BIN = hash hash_tester trng_extractor trng_tester aes_tester modexp_tester devmem3 INC = cryptech.h PREFIX = /usr/local @@ -37,14 +37,17 @@ hash: hash.o $(LIB) trng_extractor: trng_extractor.o $(LIB) $(CC) -o $@ $^ +devmem3: devmem3.o $(LIB) + $(CC) -o $@ $^ + install: $(LIB) $(BIN) $(INC) install $(LIB) $(LIB_DIR) - install $(BIN) $(BIN_DIR) + install $(BIN) configure-fpga.sh $(BIN_DIR) install $(INC) $(INC_DIR) uninstall: rm -f $(LIB_DIR)/$(LIB) - rm -f $(foreach bin,$(BIN),$(BIN_DIR)/$(bin)) + rm -f $(foreach bin,$(BIN) configure-fpga.sh,$(BIN_DIR)/$(bin)) rm -f $(INC_DIR)/$(INC) clean: diff --git a/sw/configure-fpga.sh b/sw/configure-fpga.sh new file mode 100644 index 0000000..7ebfb6b --- /dev/null +++ b/sw/configure-fpga.sh @@ -0,0 +1,13 @@ +#!/bin/sh - +bitfile="${1-novena_eim.bit}" +echo "Setting export of reset pin" +echo 135 > /sys/class/gpio/export +echo "setting reset pin to out" +echo out > /sys/class/gpio/gpio135/direction +echo "flipping reset" +echo 0 > /sys/class/gpio/gpio135/value +echo 1 > /sys/class/gpio/gpio135/value +echo "configuring FPGA" +dd if=${bitfile} of=/dev/spidev2.0 bs=128 +echo "turning on clock to FPGA" +devmem3 0x020c8160 w 0x00000D2B diff --git a/sw/devmem3.c b/sw/devmem3.c new file mode 100644 index 0000000..3c3fa16 --- /dev/null +++ b/sw/devmem3.c @@ -0,0 +1,40 @@ +#include <stdio.h> +#include <stdlib.h> + +#include "novena-eim.h" + +int +main(int argc, char *argv[]) +{ + off_t offset; + uint32_t value, result; + + if (argc < 3 || argc > 4) { + usage: + fprintf(stderr, "usage: %s offset r\n", argv[0]); + fprintf(stderr, "usage: %s offset w value\n", argv[0]); + exit(EXIT_FAILURE); + } + + if (eim_setup() != 0) { + fprintf(stderr, "EIM setup failed\n"); + exit(EXIT_FAILURE); + } + + offset = (off_t)strtoul(argv[1], NULL, 0); + if (argv[2][0] == 'r') { + eim_read_32(offset, &result); + printf("%08x\n", result); + } + else if (argv[2][0] == 'w') { + value = strtoul(argv[3], NULL, 0); + eim_write_32(offset, &value); + } + else { + fprintf(stderr, "unknown command '%s'\n", argv[2]); + goto usage; + } + + exit(EXIT_SUCCESS); +} + |