ENGR00137979-3 add performance monitor driver

	add performance monitor driver.
	sample:
		cd /sys/devices/platform/mxs-perfmon.0/
   		'echo 1 > MIDn-xxx' to enable monitor this channel
			n: channel number; xxx: name of channel (PXP, LCD...)
			you can enable the multiple channels you want to
			monitor respectively using this command.
			use following command to check the channel is enabled
		'cat MIDn-xxx'
			1: enable; 0: disable

		'echo read > Monitor' to monitor all read activities
		'echo start > Monitor' to start monitoring
		'echo fetch > Monitor' to get a snapshot of monitor statistics.
		'cat xxx_Count' to show the statistics.
			xxx: name of statistics, (Data, Transfer, Latency...)

		'echo clear > Monitor' to clear snapshot of monitor statistics.
		'echo stop > Monitor' to stop monitoring

Signed-off-by: Tony Lin <tony.lin@freescale.com>

5 files changed, 601 insertions, 0 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2ffffd42ec3c..c13aa6fe558a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -358,6 +358,11 @@ config MXS_PERSISTENT
 	depends on ARCH_MXS
 	default y
 
+config MXS_PERFMON
+	tristate "i.MX Performance Monitor"
+	depends on ARCH_MX28 || ARCH_MX50
+	default y
+
 config ANDROID_PMEM
 	bool "Android pmem allocator"
 	default n
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 347d953a4bd4..281eb2e73e1f 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_TI_DAC7512)	+= ti_dac7512.o
 obj-$(CONFIG_C2PORT)		+= c2port/
 obj-$(CONFIG_IWMC3200TOP)      += iwmc3200top/
 obj-$(CONFIG_MXS_PERSISTENT)	+= mxs-persistent.o
+obj-$(CONFIG_MXS_PERFMON)	+= mxs-perfmon.o
 obj-y				+= eeprom/
 obj-y				+= cb710/
 obj-$(CONFIG_VMWARE_BALLOON)	+= vmware_balloon.o
diff --git a/drivers/misc/mxs-perfmon.c b/drivers/misc/mxs-perfmon.c
new file mode 100644
index 000000000000..51228ec3bf89
--- /dev/null
+++ b/drivers/misc/mxs-perfmon.c
@@ -0,0 +1,395 @@
+/*
+ * Copyright (C) 2011 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.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sysdev.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/sysfs.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <linux/fsl_devices.h>
+#include <mach/system.h>
+#include "regs-perfmon.h"
+
+#define MONITOR		 "Monitor"
+
+struct mxs_perfmon_cmd_config {
+	int field;
+	int val;
+	const char *cmd;
+};
+
+static struct mxs_perfmon_cmd_config
+common_perfmon_cmd_config[] = {
+	{.val = 1,	.cmd = "start",	.field = BM_PERFMON_CTRL_RUN },
+	{.val = 0,	.cmd = "stop",	.field = BM_PERFMON_CTRL_RUN },
+	{.val = 1,	.cmd = "fetch",	.field = BM_PERFMON_CTRL_SNAP },
+	{.val = 1,	.cmd = "clear",	.field = BM_PERFMON_CTRL_CLR },
+	{.val = 1,	.cmd = "read",	.field = BM_PERFMON_CTRL_READ_EN },
+	{.val = 0,	.cmd = "write",	.field = BM_PERFMON_CTRL_READ_EN }
+};
+
+static struct mxs_perfmon_bit_config
+common_perfmon_bit_config[] = {
+	{.reg = HW_PERFMON_CTRL,		.name = MONITOR,
+	.field = ~0 },
+	{.reg = HW_PERFMON_CTRL,		.name = "Trap-En",
+	.field = BM_PERFMON_CTRL_TRAP_ENABLE },
+	{.reg = HW_PERFMON_CTRL,		.name = "Trap-In-Range",
+	.field = BM_PERFMON_CTRL_TRAP_IN_RANGE },
+	{.reg = HW_PERFMON_CTRL,		.name = "Latency-En",
+	.field = BM_PERFMON_CTRL_LATENCY_ENABLE },
+	{.reg = HW_PERFMON_CTRL,		.name = "Trap-IRQ",
+	.field = BM_PERFMON_CTRL_TRAP_IRQ },
+	{.reg = HW_PERFMON_CTRL,		.name = "Latency-IRQ",
+	.field = BM_PERFMON_CTRL_LATENCY_IRQ },
+	{.reg = HW_PERFMON_TRAP_ADDR_LOW,	.name = "Trap-Low",
+	.field = BM_PERFMON_TRAP_ADDR_LOW_ADDR },
+	{.reg = HW_PERFMON_TRAP_ADDR_HIGH,	.name = "Trap-High",
+	.field = BM_PERFMON_TRAP_ADDR_HIGH_ADDR },
+	{.reg = HW_PERFMON_LAT_THRESHOLD,	.name = "Latency-Threshold",
+	.field = BM_PERFMON_LAT_THRESHOLD_VALUE },
+	{.reg = HW_PERFMON_ACTIVE_CYCLE,	.name = "Active-Cycle",
+	.field = BM_PERFMON_ACTIVE_CYCLE_COUNT },
+	{.reg = HW_PERFMON_TRANSFER_COUNT,	.name = "Transfer-count",
+	.field = BM_PERFMON_TRANSFER_COUNT_VALUE },
+	{.reg = HW_PERFMON_TOTAL_LATENCY,	.name = "Latency-count",
+	.field = BM_PERFMON_TOTAL_LATENCY_COUNT },
+	{.reg = HW_PERFMON_DATA_COUNT,		.name = "Data-count",
+	.field = BM_PERFMON_DATA_COUNT_COUNT },
+	{.reg = HW_PERFMON_MAX_LATENCY,		.name = "ABurst",
+	.field = BM_PERFMON_MAX_LATENCY_ABURST },
+	{.reg = HW_PERFMON_MAX_LATENCY,		.name = "ALen",
+	.field = BM_PERFMON_MAX_LATENCY_ALEN },
+	{.reg = HW_PERFMON_MAX_LATENCY,		.name = "ASize",
+	.field = BM_PERFMON_MAX_LATENCY_ASIZE },
+	{.reg = HW_PERFMON_MAX_LATENCY,		.name = "TAGID",
+	.field = BM_PERFMON_MAX_LATENCY_TAGID },
+	{.reg = HW_PERFMON_MAX_LATENCY,		.name = "Max-Count",
+	.field = BM_PERFMON_MAX_LATENCY_COUNT }
+};
+
+static struct mxs_platform_perfmon_data common_perfmon_data = {
+	.bit_config_tab = common_perfmon_bit_config,
+	.bit_config_cnt = ARRAY_SIZE(common_perfmon_bit_config),
+};
+
+struct mxs_perfmon_data {
+	struct device *dev;
+	struct mxs_platform_perfmon_data *pdata;
+	struct mxs_platform_perfmon_data *pdata_common;
+	int count;
+	struct attribute_group attr_group;
+	unsigned int base;
+	unsigned int initial;
+	/* attribute ** follow */
+	/* device_attribute follow */
+};
+
+#define pd_attribute_ptr(x) \
+	((struct attribute **)((x) + 1))
+#define pd_device_attribute_ptr(x) \
+	((struct device_attribute *)(pd_attribute_ptr(x) + (x)->count + 1))
+
+static inline u32 perfmon_reg_read(struct mxs_perfmon_data *pdata,
+						int reg)
+{
+	return __raw_readl(pdata->base + reg);
+}
+
+static inline void perfmon_reg_write(struct mxs_perfmon_data *pdata,
+				u32 val, int reg)
+{
+	__raw_writel(val, pdata->base + reg);
+}
+
+static int get_offset_form_field(int field)
+{
+	int offset = 0;
+
+	if (!field)
+		return offset;
+
+	while (!(field & 0x1)) {
+		field >>= 1;
+		offset++;
+	}
+
+	return offset;
+}
+
+static ssize_t
+perfmon_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct mxs_perfmon_data *pd = platform_get_drvdata(pdev);
+	struct device_attribute *devattr = pd_device_attribute_ptr(pd);
+	struct mxs_perfmon_bit_config *pb;
+	int idx;
+	u32 val;
+	ssize_t result = 0;
+
+	idx = attr - devattr;
+	if ((unsigned int)idx >= pd->count)
+		return -EINVAL;
+
+	if (idx < pd->pdata->bit_config_cnt) {
+		pb = &pd->pdata->bit_config_tab[idx];
+		pb->reg = HW_PERFMON_MASTER_EN;
+	} else
+		pb = &pd->pdata_common->bit_config_tab \
+				[idx - pd->pdata->bit_config_cnt];
+
+	if (!pd->initial) {
+		mxs_reset_block((void *)pd->base, true);
+		pd->initial = true;
+	}
+
+	if (!memcmp(pb->name, MONITOR, sizeof(MONITOR))) {
+		/* cat monitor command, we return monitor status */
+		val = perfmon_reg_read(pd, pb->reg);
+
+		if (val & BV_PERFMON_CTRL_RUN__RUN)
+			result += sprintf(buf, "Run mode\r\n");
+		else
+			result += sprintf(buf, "Stop mode\r\n");
+
+		if (val & BM_PERFMON_CTRL_READ_EN)
+			result += \
+			sprintf(buf + result, "PM Read Activities\r\n");
+		else
+			result += \
+			sprintf(buf + result, "PM Write Activities\r\n");
+
+		return result;
+	}
+
+	/* read value and shift */
+	val = perfmon_reg_read(pd, pb->reg);
+	val &= pb->field;
+	val >>= get_offset_form_field(pb->field);
+
+	return sprintf(buf, "0x%x\n", val);
+}
+
+static ssize_t
+perfmon_store(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct mxs_perfmon_data *pd = platform_get_drvdata(pdev);
+	struct device_attribute *devattr = pd_device_attribute_ptr(pd);
+	struct mxs_perfmon_bit_config *pb;
+	int idx, r;
+	unsigned long val, newval;
+
+	idx = attr - devattr;
+	if ((unsigned int)idx >= pd->count)
+		return -EINVAL;
+
+	if (!buf)
+		return -EINVAL;
+
+	if (idx < pd->pdata->bit_config_cnt) {
+		pb = &pd->pdata->bit_config_tab[idx];
+		pb->reg = HW_PERFMON_MASTER_EN;
+	} else
+		pb = &pd->pdata_common->bit_config_tab \
+		[idx - pd->pdata->bit_config_cnt];
+
+	if (!pd->initial) {
+		mxs_reset_block((void *)pd->base, true);
+		pd->initial = true;
+	}
+
+	if (!memcmp(pb->name, MONITOR, sizeof(MONITOR))) {
+		/* it's a cmd */
+		int scan, size;
+		const struct mxs_perfmon_cmd_config *pcfg;
+
+		size = ARRAY_SIZE(common_perfmon_cmd_config);
+		for (scan = 0; scan < size; scan++) {
+			pcfg = &common_perfmon_cmd_config[scan];
+			if (!memcmp(buf, pcfg->cmd, strlen(pcfg->cmd))) {
+				val = perfmon_reg_read(pd, HW_PERFMON_CTRL);
+				val &= ~pcfg->field;
+				val |= \
+				pcfg->val << get_offset_form_field(pcfg->field);
+				perfmon_reg_write(pd, val, HW_PERFMON_CTRL);
+
+				return count;
+			}
+		}
+		if (scan == ARRAY_SIZE(common_perfmon_cmd_config))
+			return -EINVAL;
+	}
+	/* get value to write */
+	if (buf && (count >= 2) && buf[0] == '0' && buf[1] == 'x')
+		r = strict_strtoul(buf, 16, &val);
+	else
+		r = strict_strtoul(buf, 10, &val);
+
+	if (r != 0)
+		return r;
+
+	/* verify it fits */
+	if ((unsigned int)val > (pb->field >> get_offset_form_field(pb->field)))
+		return -EINVAL;
+
+	newval = perfmon_reg_read(pd, pb->reg);
+	newval &= ~pb->field;
+	newval |= val << get_offset_form_field(pb->field);
+	perfmon_reg_write(pd, newval, pb->reg);
+
+	return count;
+}
+
+
+static int __devinit mxs_perfmon_probe(struct platform_device *pdev)
+{
+	struct mxs_perfmon_data *pd;
+	struct mxs_platform_perfmon_data *pdata;
+	struct mxs_platform_perfmon_data *pdata_common;
+	struct resource *res;
+	struct mxs_perfmon_bit_config *pb;
+	struct attribute **attr;
+	struct device_attribute *devattr;
+	int i, cnt, size;
+	int err;
+
+	pdata = pdev->dev.platform_data;
+	if (pdata == NULL)
+		return -ENODEV;
+
+	pdata_common = &common_perfmon_data;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL)
+		return -ENODEV;
+
+	cnt = pdata->bit_config_cnt + pdata_common->bit_config_cnt;
+	size = sizeof(*pd) +
+		 (cnt + 1) * sizeof(struct atrribute *) +
+		 cnt * sizeof(struct device_attribute);
+	pd = kzalloc(size, GFP_KERNEL);
+	if (pd == NULL)
+		return -ENOMEM;
+	pd->dev = &pdev->dev;
+	pd->pdata = pdata;
+	pd->pdata_common = pdata_common;
+	pd->base =  (unsigned int)ioremap(res->start, res->end - res->start);
+	pd->initial = false;
+
+	platform_set_drvdata(pdev, pd);
+	pd->count = cnt;
+	attr = pd_attribute_ptr(pd);
+	devattr = pd_device_attribute_ptr(pd);
+
+	/* build the attributes structures */
+	pd->attr_group.attrs = attr;
+	pb = pdata->bit_config_tab;
+	for (i = 0; i < pdata->bit_config_cnt; i++) {
+		devattr[i].attr.name = pb[i].name;
+		devattr[i].attr.mode = S_IWUSR | S_IRUGO;
+		devattr[i].show = perfmon_show;
+		devattr[i].store = perfmon_store;
+		attr[i] = &devattr[i].attr;
+	}
+	pb = pdata_common->bit_config_tab;
+	for (i = 0; i < pdata_common->bit_config_cnt; i++) {
+		devattr[i + pdata->bit_config_cnt].attr.name = pb[i].name;
+		devattr[i + pdata->bit_config_cnt].attr.mode = \
+			S_IWUSR | S_IRUGO;
+		devattr[i + pdata->bit_config_cnt].show = perfmon_show;
+		devattr[i + pdata->bit_config_cnt].store = perfmon_store;
+		attr[i + pdata->bit_config_cnt] = \
+			&devattr[i + pdata->bit_config_cnt].attr;
+	}
+
+	err = sysfs_create_group(&pdev->dev.kobj, &pd->attr_group);
+	if (err != 0) {
+		platform_set_drvdata(pdev, NULL);
+		kfree(pd);
+		return err;
+	}
+
+	return 0;
+}
+
+static int __devexit mxs_perfmon_remove(struct platform_device *pdev)
+{
+	struct mxs_perfmon_data *pd;
+
+	pd = platform_get_drvdata(pdev);
+	sysfs_remove_group(&pdev->dev.kobj, &pd->attr_group);
+	platform_set_drvdata(pdev, NULL);
+	kfree(pd);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int
+mxs_perfmon_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	return 0;
+}
+
+static int mxs_perfmon_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+#else
+#define mxs_perfmon_suspend	NULL
+#define	mxs_perfmon_resume	NULL
+#endif
+
+static struct platform_driver mxs_perfmon_driver = {
+	.probe		= mxs_perfmon_probe,
+	.remove		= __exit_p(mxs_perfmon_remove),
+	.suspend	= mxs_perfmon_suspend,
+	.resume		= mxs_perfmon_resume,
+	.driver		= {
+		.name   = "mxs-perfmon",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init mxs_perfmon_init(void)
+{
+	return platform_driver_register(&mxs_perfmon_driver);
+}
+
+static void __exit mxs_perfmon_exit(void)
+{
+	platform_driver_unregister(&mxs_perfmon_driver);
+}
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Performance Monitor user-access driver");
+MODULE_LICENSE("GPL");
+
+module_init(mxs_perfmon_init);
+module_exit(mxs_perfmon_exit);
diff --git a/drivers/misc/regs-perfmon.h b/drivers/misc/regs-perfmon.h
new file mode 100644
index 000000000000..2f12885b3baf
--- /dev/null
+++ b/drivers/misc/regs-perfmon.h
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2011 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.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * This file is created by xml file. Don't Edit it.
+ *
+ * Xml Revision: 1.36
+ * Template revision: 26195
+ */
+
+#ifndef __ARCH_ARM___PERFMON_H
+#define __ARCH_ARM___PERFMON_H
+
+
+#define HW_PERFMON_CTRL	(0x00000000)
+#define HW_PERFMON_CTRL_SET	(0x00000004)
+#define HW_PERFMON_CTRL_CLR	(0x00000008)
+#define HW_PERFMON_CTRL_TOG	(0x0000000c)
+
+#define BM_PERFMON_CTRL_SFTRST	0x80000000
+#define BV_PERFMON_CTRL_SFTRST__RUN   0x0
+#define BV_PERFMON_CTRL_SFTRST__RESET 0x1
+#define BM_PERFMON_CTRL_CLKGATE	0x40000000
+#define BV_PERFMON_CTRL_CLKGATE__RUN     0x0
+#define BV_PERFMON_CTRL_CLKGATE__NO_CLKS 0x1
+#define BP_PERFMON_CTRL_RSVD2	24
+#define BM_PERFMON_CTRL_RSVD2	0x3F000000
+#define BF_PERFMON_CTRL_RSVD2(v)  \
+		(((v) << 24) & BM_PERFMON_CTRL_RSVD2)
+#define BP_PERFMON_CTRL_IRQ_MID	16
+#define BM_PERFMON_CTRL_IRQ_MID	0x00FF0000
+#define BF_PERFMON_CTRL_IRQ_MID(v)  \
+		(((v) << 16) & BM_PERFMON_CTRL_IRQ_MID)
+#define BP_PERFMON_CTRL_RSVD1	13
+#define BM_PERFMON_CTRL_RSVD1	0x0000E000
+#define BF_PERFMON_CTRL_RSVD1(v)  \
+		(((v) << 13) & BM_PERFMON_CTRL_RSVD1)
+#define BM_PERFMON_CTRL_BUS_ERR_IRQ	0x00001000
+#define BM_PERFMON_CTRL_LATENCY_IRQ	0x00000800
+#define BM_PERFMON_CTRL_TRAP_IRQ	0x00000400
+#define BM_PERFMON_CTRL_BUS_ERR_IRQ_EN	0x00000200
+#define BM_PERFMON_CTRL_LATENCY_IRQ_EN	0x00000100
+#define BM_PERFMON_CTRL_TRAP_IRQ_EN	0x00000080
+#define BM_PERFMON_CTRL_LATENCY_ENABLE	0x00000040
+#define BM_PERFMON_CTRL_TRAP_IN_RANGE	0x00000020
+#define BM_PERFMON_CTRL_TRAP_ENABLE	0x00000010
+#define BM_PERFMON_CTRL_READ_EN	0x00000008
+#define BM_PERFMON_CTRL_CLR	0x00000004
+#define BM_PERFMON_CTRL_SNAP	0x00000002
+#define BM_PERFMON_CTRL_RUN	0x00000001
+#define BV_PERFMON_CTRL_RUN__HALT 0x0
+#define BV_PERFMON_CTRL_RUN__RUN  0x1
+
+#define HW_PERFMON_MASTER_EN	(0x00000010)
+
+#define BP_PERFMON_MASTER_EN_RSVD0	16
+#define BM_PERFMON_MASTER_EN_RSVD0	0xFFFF0000
+#define BF_PERFMON_MASTER_EN_RSVD0(v) \
+		(((v) << 16) & BM_PERFMON_MASTER_EN_RSVD0)
+#define BM_PERFMON_MASTER_EN_MID15	0x00008000
+#define BM_PERFMON_MASTER_EN_MID14	0x00004000
+#define BM_PERFMON_MASTER_EN_MID13	0x00002000
+#define BM_PERFMON_MASTER_EN_MID12	0x00001000
+#define BM_PERFMON_MASTER_EN_MID11	0x00000800
+#define BM_PERFMON_MASTER_EN_MID10	0x00000400
+#define BM_PERFMON_MASTER_EN_MID9	0x00000200
+#define BM_PERFMON_MASTER_EN_MID8	0x00000100
+#define BM_PERFMON_MASTER_EN_MID7	0x00000080
+#define BM_PERFMON_MASTER_EN_MID6	0x00000040
+#define BM_PERFMON_MASTER_EN_MID5	0x00000020
+#define BM_PERFMON_MASTER_EN_MID4	0x00000010
+#define BM_PERFMON_MASTER_EN_MID3	0x00000008
+#define BM_PERFMON_MASTER_EN_MID2	0x00000004
+#define BM_PERFMON_MASTER_EN_MID1	0x00000002
+#define BM_PERFMON_MASTER_EN_MID0	0x00000001
+
+#define HW_PERFMON_TRAP_ADDR_LOW	(0x00000020)
+
+#define BP_PERFMON_TRAP_ADDR_LOW_ADDR	0
+#define BM_PERFMON_TRAP_ADDR_LOW_ADDR	0xFFFFFFFF
+#define BF_PERFMON_TRAP_ADDR_LOW_ADDR(v)	(v)
+
+#define HW_PERFMON_TRAP_ADDR_HIGH	(0x00000030)
+
+#define BP_PERFMON_TRAP_ADDR_HIGH_ADDR	0
+#define BM_PERFMON_TRAP_ADDR_HIGH_ADDR	0xFFFFFFFF
+#define BF_PERFMON_TRAP_ADDR_HIGH_ADDR(v)	(v)
+
+#define HW_PERFMON_LAT_THRESHOLD	(0x00000040)
+
+#define BP_PERFMON_LAT_THRESHOLD_RSVD0	12
+#define BM_PERFMON_LAT_THRESHOLD_RSVD0	0xFFFFF000
+#define BF_PERFMON_LAT_THRESHOLD_RSVD0(v) \
+		(((v) << 12) & BM_PERFMON_LAT_THRESHOLD_RSVD0)
+#define BP_PERFMON_LAT_THRESHOLD_VALUE	0
+#define BM_PERFMON_LAT_THRESHOLD_VALUE	0x00000FFF
+#define BF_PERFMON_LAT_THRESHOLD_VALUE(v)  \
+		(((v) << 0) & BM_PERFMON_LAT_THRESHOLD_VALUE)
+
+#define HW_PERFMON_ACTIVE_CYCLE	(0x00000050)
+
+#define BP_PERFMON_ACTIVE_CYCLE_COUNT	0
+#define BM_PERFMON_ACTIVE_CYCLE_COUNT	0xFFFFFFFF
+#define BF_PERFMON_ACTIVE_CYCLE_COUNT(v)	(v)
+
+#define HW_PERFMON_TRANSFER_COUNT	(0x00000060)
+
+#define BP_PERFMON_TRANSFER_COUNT_VALUE	0
+#define BM_PERFMON_TRANSFER_COUNT_VALUE	0xFFFFFFFF
+#define BF_PERFMON_TRANSFER_COUNT_VALUE(v)	(v)
+
+#define HW_PERFMON_TOTAL_LATENCY	(0x00000070)
+
+#define BP_PERFMON_TOTAL_LATENCY_COUNT	0
+#define BM_PERFMON_TOTAL_LATENCY_COUNT	0xFFFFFFFF
+#define BF_PERFMON_TOTAL_LATENCY_COUNT(v)	(v)
+
+#define HW_PERFMON_DATA_COUNT	(0x00000080)
+
+#define BP_PERFMON_DATA_COUNT_COUNT	0
+#define BM_PERFMON_DATA_COUNT_COUNT	0xFFFFFFFF
+#define BF_PERFMON_DATA_COUNT_COUNT(v)	(v)
+
+#define HW_PERFMON_MAX_LATENCY	(0x00000090)
+
+#define BP_PERFMON_MAX_LATENCY_ABURST	30
+#define BM_PERFMON_MAX_LATENCY_ABURST	0xC0000000
+#define BF_PERFMON_MAX_LATENCY_ABURST(v) \
+		(((v) << 30) & BM_PERFMON_MAX_LATENCY_ABURST)
+#define BP_PERFMON_MAX_LATENCY_ALEN	26
+#define BM_PERFMON_MAX_LATENCY_ALEN	0x3C000000
+#define BF_PERFMON_MAX_LATENCY_ALEN(v)  \
+		(((v) << 26) & BM_PERFMON_MAX_LATENCY_ALEN)
+#define BP_PERFMON_MAX_LATENCY_ASIZE	23
+#define BM_PERFMON_MAX_LATENCY_ASIZE	0x03800000
+#define BF_PERFMON_MAX_LATENCY_ASIZE(v)  \
+		(((v) << 23) & BM_PERFMON_MAX_LATENCY_ASIZE)
+#define BP_PERFMON_MAX_LATENCY_TAGID	15
+#define BM_PERFMON_MAX_LATENCY_TAGID	0x007F8000
+#define BF_PERFMON_MAX_LATENCY_TAGID(v)  \
+		(((v) << 15) & BM_PERFMON_MAX_LATENCY_TAGID)
+#define BP_PERFMON_MAX_LATENCY_RSVD0	12
+#define BM_PERFMON_MAX_LATENCY_RSVD0	0x00007000
+#define BF_PERFMON_MAX_LATENCY_RSVD0(v)  \
+		(((v) << 12) & BM_PERFMON_MAX_LATENCY_RSVD0)
+#define BP_PERFMON_MAX_LATENCY_COUNT	0
+#define BM_PERFMON_MAX_LATENCY_COUNT	0x00000FFF
+#define BF_PERFMON_MAX_LATENCY_COUNT(v)  \
+		(((v) << 0) & BM_PERFMON_MAX_LATENCY_COUNT)
+
+#define HW_PERFMON_DEBUG	(0x000000a0)
+
+#define BP_PERFMON_DEBUG_RSVD	2
+#define BM_PERFMON_DEBUG_RSVD	0xFFFFFFFC
+#define BF_PERFMON_DEBUG_RSVD(v) \
+		(((v) << 2) & BM_PERFMON_DEBUG_RSVD)
+#define BM_PERFMON_DEBUG_TOTAL_CYCLE_CLR_EN	0x00000002
+#define BM_PERFMON_DEBUG_ERR_MID	0x00000001
+
+#define HW_PERFMON_VERSION	(0x000000b0)
+
+#define BP_PERFMON_VERSION_MAJOR	24
+#define BM_PERFMON_VERSION_MAJOR	0xFF000000
+#define BF_PERFMON_VERSION_MAJOR(v) \
+		(((v) << 24) & BM_PERFMON_VERSION_MAJOR)
+#define BP_PERFMON_VERSION_MINOR	16
+#define BM_PERFMON_VERSION_MINOR	0x00FF0000
+#define BF_PERFMON_VERSION_MINOR(v)  \
+		(((v) << 16) & BM_PERFMON_VERSION_MINOR)
+#define BP_PERFMON_VERSION_STEP	0
+#define BM_PERFMON_VERSION_STEP	0x0000FFFF
+#define BF_PERFMON_VERSION_STEP(v)  \
+		(((v) << 0) & BM_PERFMON_VERSION_STEP)
+#endif /* __ARCH_ARM___PERFMON_H */
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index 91d4d427d727..0e6e744f828c 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -630,4 +630,15 @@ int fsl_deep_sleep(void);
 static inline int fsl_deep_sleep(void) { return 0; }
 #endif
 
+struct mxs_perfmon_bit_config {
+	int reg;
+	int field;
+	const char *name;
+};
+
+struct mxs_platform_perfmon_data {
+	struct mxs_perfmon_bit_config *bit_config_tab;
+	int bit_config_cnt;
+};
+
 #endif /* _FSL_DEVICE_H_ */