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-rw-r--r--arch/arm/plat-spear/pl080.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/arch/arm/plat-spear/pl080.c b/arch/arm/plat-spear/pl080.c
deleted file mode 100644
index 12cf27f935f..00000000000
--- a/arch/arm/plat-spear/pl080.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * arch/arm/plat-spear/pl080.c
- *
- * DMAC pl080 definitions for SPEAr platform
- *
- * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/amba/pl08x.h>
-#include <linux/amba/bus.h>
-#include <linux/bug.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/spinlock_types.h>
-#include <mach/spear.h>
-#include <mach/misc_regs.h>
-
-static spinlock_t lock = __SPIN_LOCK_UNLOCKED(x);
-
-struct {
- unsigned char busy;
- unsigned char val;
-} signals[16] = {{0, 0}, };
-
-int pl080_get_signal(struct pl08x_dma_chan *ch)
-{
- const struct pl08x_channel_data *cd = ch->cd;
- unsigned int signal = cd->min_signal, val;
- unsigned long flags;
-
- spin_lock_irqsave(&lock, flags);
-
- /* Return if signal is already acquired by somebody else */
- if (signals[signal].busy &&
- (signals[signal].val != cd->muxval)) {
- spin_unlock_irqrestore(&lock, flags);
- return -EBUSY;
- }
-
- /* If acquiring for the first time, configure it */
- if (!signals[signal].busy) {
- val = readl(DMA_CHN_CFG);
-
- /*
- * Each request line has two bits in DMA_CHN_CFG register. To
- * goto the bits of current request line, do left shift of
- * value by 2 * signal number.
- */
- val &= ~(0x3 << (signal * 2));
- val |= cd->muxval << (signal * 2);
- writel(val, DMA_CHN_CFG);
- }
-
- signals[signal].busy++;
- signals[signal].val = cd->muxval;
- spin_unlock_irqrestore(&lock, flags);
-
- return signal;
-}
-
-void pl080_put_signal(struct pl08x_dma_chan *ch)
-{
- const struct pl08x_channel_data *cd = ch->cd;
- unsigned long flags;
-
- spin_lock_irqsave(&lock, flags);
-
- /* if signal is not used */
- if (!signals[cd->min_signal].busy)
- BUG();
-
- signals[cd->min_signal].busy--;
-
- spin_unlock_irqrestore(&lock, flags);
-}