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-rwxr-xr-xsw/Makefile9
-rw-r--r--sw/configure-fpga.sh13
-rw-r--r--sw/devmem3.c40
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);
+}
+