1 files changed, 0 insertions, 93 deletions
diff --git a/arch/arm/mach-mxs/ocotp.c b/arch/arm/mach-mxs/ocotp.c
deleted file mode 100644
index 1dff46703753..000000000000
--- a/arch/arm/mach-mxs/ocotp.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * 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 2 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.
- */
-
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-
-#include <asm/processor.h>	/* for cpu_relax() */
-
-#include <mach/mxs.h>
-#include <mach/common.h>
-
-#define OCOTP_WORD_OFFSET		0x20
-#define OCOTP_WORD_COUNT		0x20
-
-#define BM_OCOTP_CTRL_BUSY		(1 << 8)
-#define BM_OCOTP_CTRL_ERROR		(1 << 9)
-#define BM_OCOTP_CTRL_RD_BANK_OPEN	(1 << 12)
-
-static DEFINE_MUTEX(ocotp_mutex);
-static u32 ocotp_words[OCOTP_WORD_COUNT];
-
-const u32 *mxs_get_ocotp(void)
-{
-	void __iomem *ocotp_base = MXS_IO_ADDRESS(MXS_OCOTP_BASE_ADDR);
-	int timeout = 0x400;
-	size_t i;
-	static int once = 0;
-
-	if (once)
-		return ocotp_words;
-
-	mutex_lock(&ocotp_mutex);
-
-	/*
-	 * clk_enable(hbus_clk) for ocotp can be skipped
-	 * as it must be on when system is running.
-	 */
-
-	/* try to clear ERROR bit */
-	__mxs_clrl(BM_OCOTP_CTRL_ERROR, ocotp_base);
-
-	/* check both BUSY and ERROR cleared */
-	while ((__raw_readl(ocotp_base) &
-		(BM_OCOTP_CTRL_BUSY | BM_OCOTP_CTRL_ERROR)) && --timeout)
-		cpu_relax();
-
-	if (unlikely(!timeout))
-		goto error_unlock;
-
-	/* open OCOTP banks for read */
-	__mxs_setl(BM_OCOTP_CTRL_RD_BANK_OPEN, ocotp_base);
-
-	/* approximately wait 32 hclk cycles */
-	udelay(1);
-
-	/* poll BUSY bit becoming cleared */
-	timeout = 0x400;
-	while ((__raw_readl(ocotp_base) & BM_OCOTP_CTRL_BUSY) && --timeout)
-		cpu_relax();
-
-	if (unlikely(!timeout))
-		goto error_unlock;
-
-	for (i = 0; i < OCOTP_WORD_COUNT; i++)
-		ocotp_words[i] = __raw_readl(ocotp_base + OCOTP_WORD_OFFSET +
-						i * 0x10);
-
-	/* close banks for power saving */
-	__mxs_clrl(BM_OCOTP_CTRL_RD_BANK_OPEN, ocotp_base);
-
-	once = 1;
-
-	mutex_unlock(&ocotp_mutex);
-
-	return ocotp_words;
-
-error_unlock:
-	mutex_unlock(&ocotp_mutex);
-	pr_err("%s: timeout in reading OCOTP\n", __func__);
-	return NULL;
-}