1 files changed, 0 insertions, 55 deletions
diff --git a/firmware/zpu/lib/spi.c b/firmware/zpu/lib/spi.c
deleted file mode 100644
index 6f2f74899..000000000
--- a/firmware/zpu/lib/spi.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright 2012 Ettus Research LLC
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "spi.h"
-#include "memory_map.h"
-#include "nonstdio.h"
-
-void spi_init(void)
-{
-    spi_core->divider = 10;
-}
-
-void spi_wait(void)
-{
-    while ((readback_mux->irqs & SPI_READY_IRQ) == 0){
-        //NOP
-    }
-}
-
-uint32_t spi_transact(bool readback, int slave, uint32_t data, int length, uint32_t flags)
-{
-    uint32_t control_word = 0;
-    control_word |= (slave << SPI_CORE_SLAVE_SELECT_SHIFT);
-    control_word |= (length << SPI_CORE_NUM_BITS_SHIFT);
-    if ((flags & SPI_PUSH_RISE)  != 0) control_word |= (1 << SPI_CORE_DATA_OUT_EDGE_SHIFT);
-    if ((flags & SPI_PUSH_FALL)  != 0) control_word |= (0 << SPI_CORE_DATA_OUT_EDGE_SHIFT);
-    if ((flags & SPI_LATCH_RISE) != 0) control_word |= (1 << SPI_CORE_DATA_IN_EDGE_SHIFT);
-    if ((flags & SPI_LATCH_FALL) != 0) control_word |= (0 << SPI_CORE_DATA_IN_EDGE_SHIFT);
-
-    const uint32_t data_out = data << (32 - length);
-
-    spi_wait();
-    spi_core->control = control_word;
-    spi_core->data = data_out;
-
-    if (!readback) return 0;
-
-    spi_wait();
-    return readback_mux->spi;
-}