@@ -1,6 +1,2 @@
-# Common support
-obj-y := ocotp.o
-
obj-$(CONFIG_PM) += pm.o
-
obj-$(CONFIG_MACH_MXS_DT) += mach-mxs.o
@@ -11,7 +11,6 @@
#ifndef __MACH_MXS_COMMON_H__
#define __MACH_MXS_COMMON_H__
-extern const u32 *mxs_get_ocotp(void);
extern int mxs_saif_clkmux_select(unsigned int clkmux);
extern int mx23_clocks_init(void);
@@ -193,6 +193,82 @@ static void __init imx28_timer_init(void)
clocksource_of_init();
}
+#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];
+
+static const u32 *mxs_get_ocotp(void)
+{
+ struct device_node *np;
+ void __iomem *ocotp_base;
+ int timeout = 0x400;
+ size_t i;
+ static int once;
+
+ if (once)
+ return ocotp_words;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,ocotp");
+ ocotp_base = of_iomap(np, 0);
+ WARN_ON(!ocotp_base);
+
+ 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;
+}
+
enum mac_oui {
OUI_FSL,
OUI_DENX,
deleted file mode 100644
@@ -1,100 +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 <linux/of.h>
-#include <linux/of_address.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)
-{
- struct device_node *np;
- void __iomem *ocotp_base;
- int timeout = 0x400;
- size_t i;
- static int once = 0;
-
- if (once)
- return ocotp_words;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,ocotp");
- ocotp_base = of_iomap(np, 0);
- WARN_ON(!ocotp_base);
-
- 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;
-}
All the users of mxs_get_ocotp() are in mach-mxs.c. Move the function into mach-mxs.c, make it a static function, and then remove ocotp.c. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- arch/arm/mach-mxs/Makefile | 4 -- arch/arm/mach-mxs/include/mach/common.h | 1 - arch/arm/mach-mxs/mach-mxs.c | 76 +++++++++++++++++++++++ arch/arm/mach-mxs/ocotp.c | 100 ------------------------------- 4 files changed, 76 insertions(+), 105 deletions(-) delete mode 100644 arch/arm/mach-mxs/ocotp.c