1 files changed, 0 insertions, 159 deletions
diff --git a/chip/mec1322/dma.c b/chip/mec1322/dma.c
deleted file mode 100644
index a6c6fed5ad..0000000000
--- a/chip/mec1322/dma.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/* Copyright 2014 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "common.h"
-#include "console.h"
-#include "dma.h"
-#include "hooks.h"
-#include "registers.h"
-#include "task.h"
-#include "timer.h"
-#include "util.h"
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_DMA, outstr)
-#define CPRINTS(format, args...) cprints(CC_DMA, format, ## args)
-
-mec1322_dma_chan_t *dma_get_channel(enum dma_channel channel)
-{
-	mec1322_dma_regs_t *dma = MEC1322_DMA_REGS;
-
-	return &dma->chan[channel];
-}
-
-void dma_disable(enum dma_channel channel)
-{
-	mec1322_dma_chan_t *chan = dma_get_channel(channel);
-
-	if (chan->ctrl & BIT(0))
-		chan->ctrl &= ~BIT(0);
-
-	if (chan->act == 1)
-		chan->act = 0;
-}
-
-void dma_disable_all(void)
-{
-	int ch;
-	mec1322_dma_regs_t *dma;
-
-	for (ch = 0; ch < MEC1322_DMAC_COUNT; ch++) {
-		mec1322_dma_chan_t *chan = dma_get_channel(ch);
-		/* Abort any current transfer. */
-		chan->ctrl |= BIT(25);
-		/* Disable the channel. */
-		chan->ctrl &= ~BIT(0);
-		chan->act = 0;
-	}
-
-	/* Soft-reset the block. */
-	dma = MEC1322_DMA_REGS;
-	dma->ctrl |= 0x2;
-}
-
-/**
- * Prepare a channel for use and start it
- *
- * @param chan		Channel to read
- * @param count		Number of bytes to transfer
- * @param periph	Pointer to peripheral data register
- * @param memory	Pointer to memory address for receive/transmit
- * @param flags		DMA flags for the control register, normally:
- *				MEC1322_DMA_INC_MEM | MEC1322_DMA_TO_DEV for tx
- *				MEC1322_DMA_INC_MEM for rx
- */
-static void prepare_channel(mec1322_dma_chan_t *chan, unsigned count,
-		void *periph, void *memory, unsigned flags)
-{
-	int xfer_size = (flags >> 20) & 0x7;
-
-	if (chan->ctrl & BIT(0))
-		chan->ctrl &= ~BIT(0);
-
-	chan->act |= 0x1;
-	chan->dev = (uint32_t)periph;
-	chan->mem_start = MEC1322_RAM_ALIAS((uint32_t)memory);
-	chan->mem_end = MEC1322_RAM_ALIAS((uint32_t)memory) + xfer_size * count;
-	chan->ctrl = flags;
-}
-
-void dma_go(mec1322_dma_chan_t *chan)
-{
-	/* Flush data in write buffer so that DMA can get the latest data */
-	asm volatile("dsb;");
-
-	/* Fire it up */
-	chan->ctrl |= MEC1322_DMA_RUN;
-}
-
-void dma_prepare_tx(const struct dma_option *option, unsigned count,
-		    const void *memory)
-{
-	mec1322_dma_chan_t *chan = dma_get_channel(option->channel);
-
-	/*
-	 * Cast away const for memory pointer; this is ok because we know
-	 * we're preparing the channel for transmit.
-	 */
-	prepare_channel(chan, count, option->periph, (void *)memory,
-			MEC1322_DMA_INC_MEM | MEC1322_DMA_TO_DEV |
-			MEC1322_DMA_DEV(option->channel) | option->flags);
-}
-
-void dma_start_rx(const struct dma_option *option, unsigned count,
-		  void *memory)
-{
-	mec1322_dma_chan_t *chan;
-
-	chan = dma_get_channel(option->channel);
-
-	prepare_channel(chan, count, option->periph, memory,
-			MEC1322_DMA_INC_MEM | MEC1322_DMA_DEV(option->channel) |
-			option->flags);
-	dma_go(chan);
-}
-
-int dma_bytes_done(mec1322_dma_chan_t *chan, int orig_count)
-{
-	int xfer_size = (chan->ctrl >> 20) & 0x7;
-
-	return orig_count - (chan->mem_end - chan->mem_start) / xfer_size;
-}
-
-bool dma_is_enabled(mec1322_dma_chan_t *chan)
-{
-	return (chan->ctrl & MEC1322_DMA_RUN);
-}
-
-void dma_init(void)
-{
-	mec1322_dma_regs_t *dma = MEC1322_DMA_REGS;
-	dma->ctrl |= 0x1;
-}
-
-int dma_wait(enum dma_channel channel)
-{
-	mec1322_dma_chan_t *chan = dma_get_channel(channel);
-	timestamp_t deadline;
-
-	if (chan->act == 0)
-		return EC_SUCCESS;
-
-	deadline.val = get_time().val + DMA_TRANSFER_TIMEOUT_US;
-	while (!(chan->int_status & 0x4)) {
-		if (deadline.val <= get_time().val)
-			return EC_ERROR_TIMEOUT;
-
-		udelay(DMA_POLLING_INTERVAL_US);
-	}
-	return EC_SUCCESS;
-}
-
-void dma_clear_isr(enum dma_channel channel)
-{
-	mec1322_dma_chan_t *chan = dma_get_channel(channel);
-
-	chan->int_status |= 0x4;
-}