Merge branch 'v3.18/topic/coresight' into linux-linaro-lsk-v3.18

* v3.18/topic/coresight:
  Revert "ARM: removing support for etb/etm in "arch/arm/kernel/""

3 files changed, 58 insertions, 15 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 4a63d3311a41..f4d06aea8460 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -292,21 +292,13 @@ config MACH_TI8148EVM
 	depends on SOC_TI81XX
 	default y
 
-config MACH_OMAP_4430SDP
-	bool "OMAP 4430 SDP board"
-	default y
-	depends on ARCH_OMAP4
-	select OMAP_PACKAGE_CBL
-	select OMAP_PACKAGE_CBS
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-
-config MACH_OMAP4_PANDA
-	bool "OMAP4 Panda Board"
-	default y
-	depends on ARCH_OMAP4
-	select OMAP_PACKAGE_CBL
-	select OMAP_PACKAGE_CBS
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
+config OMAP3_EMU
+	bool "OMAP3 debugging peripherals"
+	depends on ARCH_OMAP3
+	select ARM_AMBA
+	select OC_ETM
+	help
+	  Say Y here to enable debugging hardware of omap3
 
 config OMAP3_SDRC_AC_TIMING
 	bool "Enable SDRC AC timing register changes"
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 87255a3d8849..d9e94122073e 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -228,6 +228,7 @@ obj-$(CONFIG_SOC_OMAP5)			+= omap_hwmod_54xx_data.o
 obj-$(CONFIG_SOC_DRA7XX)		+= omap_hwmod_7xx_data.o
 
 # EMU peripherals
+obj-$(CONFIG_OMAP3_EMU)			+= emu.o
 obj-$(CONFIG_HW_PERF_EVENTS)		+= pmu.o
 
 iommu-$(CONFIG_OMAP_IOMMU)		:= omap-iommu.o
diff --git a/arch/arm/mach-omap2/emu.c b/arch/arm/mach-omap2/emu.c
new file mode 100644
index 000000000000..cbeaca2d7695
--- /dev/null
+++ b/arch/arm/mach-omap2/emu.c
@@ -0,0 +1,50 @@
+/*
+ * emu.c
+ *
+ * ETM and ETB CoreSight components' resources as found in OMAP3xxx.
+ *
+ * Copyright (C) 2009 Nokia Corporation.
+ * Alexander Shishkin
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include "soc.h"
+#include "iomap.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexander Shishkin");
+
+/* Cortex CoreSight components within omap3xxx EMU */
+#define ETM_BASE	(L4_EMU_34XX_PHYS + 0x10000)
+#define DBG_BASE	(L4_EMU_34XX_PHYS + 0x11000)
+#define ETB_BASE	(L4_EMU_34XX_PHYS + 0x1b000)
+#define DAPCTL		(L4_EMU_34XX_PHYS + 0x1d000)
+
+static AMBA_APB_DEVICE(omap3_etb, "etb", 0x000bb907, ETB_BASE, { }, NULL);
+static AMBA_APB_DEVICE(omap3_etm, "etm", 0x102bb921, ETM_BASE, { }, NULL);
+
+static int __init emu_init(void)
+{
+	if (!cpu_is_omap34xx())
+		return -ENODEV;
+
+	amba_device_register(&omap3_etb_device, &iomem_resource);
+	amba_device_register(&omap3_etm_device, &iomem_resource);
+
+	return 0;
+}
+
+omap_subsys_initcall(emu_init);