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-rw-r--r--arch/arm/mach-netx/pfifo.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/arm/mach-netx/pfifo.c b/arch/arm/mach-netx/pfifo.c
deleted file mode 100644
index 2e5cc777329f..000000000000
--- a/arch/arm/mach-netx/pfifo.c
+++ /dev/null
@@ -1,56 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/arm/mach-netx/pfifo.c
- *
- * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <mach/netx-regs.h>
-#include <mach/pfifo.h>
-
-static DEFINE_MUTEX(pfifo_lock);
-
-static unsigned int pfifo_used = 0;
-
-int pfifo_request(unsigned int pfifo_mask)
-{
- int err = 0;
- unsigned int val;
-
- mutex_lock(&pfifo_lock);
-
- if (pfifo_mask & pfifo_used) {
- err = -EBUSY;
- goto out;
- }
-
- pfifo_used |= pfifo_mask;
-
- val = readl(NETX_PFIFO_RESET);
- writel(val | pfifo_mask, NETX_PFIFO_RESET);
- writel(val, NETX_PFIFO_RESET);
-
-out:
- mutex_unlock(&pfifo_lock);
- return err;
-}
-
-void pfifo_free(unsigned int pfifo_mask)
-{
- mutex_lock(&pfifo_lock);
- pfifo_used &= ~pfifo_mask;
- mutex_unlock(&pfifo_lock);
-}
-
-EXPORT_SYMBOL(pfifo_push);
-EXPORT_SYMBOL(pfifo_pop);
-EXPORT_SYMBOL(pfifo_fill_level);
-EXPORT_SYMBOL(pfifo_empty);
-EXPORT_SYMBOL(pfifo_request);
-EXPORT_SYMBOL(pfifo_free);