From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 arch/arm/mach-omap2/emu.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 arch/arm/mach-omap2/emu.c

(limited to 'arch/arm/mach-omap2/emu.c')

diff --git a/arch/arm/mach-omap2/emu.c b/arch/arm/mach-omap2/emu.c
new file mode 100644
index 00000000..9c442e29
--- /dev/null
+++ b/arch/arm/mach-omap2/emu.c
@@ -0,0 +1,69 @@
+/*
+ * 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>
+
+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 struct amba_device omap3_etb_device = {
+	.dev		= {
+		.init_name = "etb",
+	},
+	.res		= {
+		.start	= ETB_BASE,
+		.end	= ETB_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	.periphid	= 0x000bb907,
+};
+
+static struct amba_device omap3_etm_device = {
+	.dev		= {
+		.init_name = "etm",
+	},
+	.res		= {
+		.start	= ETM_BASE,
+		.end	= ETM_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	.periphid	= 0x102bb921,
+};
+
+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;
+}
+
+subsys_initcall(emu_init);
+
-- 
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