ENGR00137979-1 [MX28]add performance monitor driver

	enable performance monitor driver for system loading analysis

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

3 files changed, 67 insertions, 2 deletions

diff --git a/arch/arm/configs/imx28evk_defconfig b/arch/arm/configs/imx28evk_defconfig
index 0d01c03b7340..8454a851caea 100644
--- a/arch/arm/configs/imx28evk_defconfig
+++ b/arch/arm/configs/imx28evk_defconfig
@@ -672,6 +672,7 @@ CONFIG_MXS_PERSISTENT=y
 # CONFIG_ANDROID_PMEM is not set
 # CONFIG_UID_STAT is not set
 # CONFIG_C2PORT is not set
+CONFIG_MXS_PERFMON=y
 
 #
 # EEPROM support
diff --git a/arch/arm/mach-mx28/device.c b/arch/arm/mach-mx28/device.c
index f0083466ea3e..410928fc7d32 100644
--- a/arch/arm/mach-mx28/device.c
+++ b/arch/arm/mach-mx28/device.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009-2011 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
@@ -1518,6 +1518,51 @@ static void mx28_init_persistent()
 }
 #endif
 
+#if defined(CONFIG_MXS_PERFMON)
+
+static struct mxs_perfmon_bit_config
+mx28_perfmon_bit_config[] = {
+	{.field = (1 << 0),	.name = "MID0-PXP" },
+	{.field = (1 << 1),	.name = "MID1-LCDIF" },
+	{.field = (1 << 2),	.name = "MID2-BCH" },
+	{.field = (1 << 3),	.name = "MID3-DCP" }
+};
+
+static struct mxs_platform_perfmon_data mx28_perfmon_data = {
+	.bit_config_tab = mx28_perfmon_bit_config,
+	.bit_config_cnt = ARRAY_SIZE(mx28_perfmon_bit_config),
+};
+
+static struct resource mx28_perfmon_res[] = {
+	{
+	 .flags = IORESOURCE_MEM,
+	 .start = PERFMON_PHYS_ADDR,
+	 .end   = PERFMON_PHYS_ADDR + 0x1000 - 1,
+    },
+};
+
+static void mx28_init_perfmon(void)
+{
+	struct platform_device *pdev;
+
+	pdev = mxs_get_device("mxs-perfmon", 0);
+	if (pdev == NULL || IS_ERR(pdev))
+		return;
+	pdev->dev.platform_data = &mx28_perfmon_data;
+	pdev->resource = mx28_perfmon_res,
+	pdev->num_resources = ARRAY_SIZE(mx28_perfmon_res),
+	mxs_add_device(pdev, 3);
+}
+
+#else
+
+static void mx28_init_perfmon()
+{
+}
+
+#endif
+
+
 #if defined(CONFIG_FSL_OTP)
 /* Building up eight registers's names of a bank */
 #define BANK(a, b, c, d, e, f, g, h)	\
@@ -1587,6 +1632,7 @@ int __init mx28_device_init(void)
 	mx28_init_dcp();
 	mx28_init_battery();
 	mx28_init_persistent();
+	mx28_init_perfmon();
 	mx28_init_otp();
 	return 0;
 }
diff --git a/arch/arm/plat-mxs/device.c b/arch/arm/plat-mxs/device.c
index e3783d3fe87d..87a38fa8c3d8 100644
--- a/arch/arm/plat-mxs/device.c
+++ b/arch/arm/plat-mxs/device.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009-2011 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
@@ -485,6 +485,16 @@ static struct platform_device mxs_persistent = {
 };
 #endif
 
+#ifdef CONFIG_MXS_PERFMON
+static struct platform_device mxs_perfmon = {
+	.name			= "mxs-perfmon",
+	.id			= 0,
+	.dev = {
+		.release = mxs_nop_release,
+		},
+};
+#endif
+
 #ifdef CONFIG_FSL_OTP
 static struct platform_device otp_device = {
 	.name			= "ocotp",
@@ -576,6 +586,14 @@ static struct mxs_dev_lookup dev_lookup[] = {
 	},
 #endif
 
+#if defined(CONFIG_MXS_PERFMON)
+	{
+	.name = "mxs-perfmon",
+	.size = 1,
+	.pdev = &mxs_perfmon,
+	},
+#endif
+
 #if defined(CONFIG_FSL_OTP)
 	{
 	.name = "ocotp",