1 /*
2 * emu.c
3 *
4 * ETM and ETB CoreSight components' resources as found in OMAP3xxx.
5 *
6 * Copyright (C) 2009 Nokia Corporation.
7 * Alexander Shishkin
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/types.h>
17 #include <linux/module.h>
18 #include <linux/device.h>
19 #include <linux/amba/bus.h>
20 #include <linux/io.h>
21 #include <linux/clk.h>
22 #include <linux/err.h>
23
24 #include <mach/hardware.h>
25
26 #include "iomap.h"
27
28 MODULE_LICENSE("GPL");
29 MODULE_AUTHOR("Alexander Shishkin");
30
31 /* Cortex CoreSight components within omap3xxx EMU */
32 #define ETM_BASE (L4_EMU_34XX_PHYS + 0x10000)
33 #define DBG_BASE (L4_EMU_34XX_PHYS + 0x11000)
34 #define ETB_BASE (L4_EMU_34XX_PHYS + 0x1b000)
35 #define DAPCTL (L4_EMU_34XX_PHYS + 0x1d000)
36
37 static AMBA_APB_DEVICE(omap3_etb, "etb", 0x000bb907, ETB_BASE, { }, NULL);
38 static AMBA_APB_DEVICE(omap3_etm, "etm", 0x102bb921, ETM_BASE, { }, NULL);
39
emu_init(void)40 static int __init emu_init(void)
41 {
42 if (!cpu_is_omap34xx())
43 return -ENODEV;
44
45 amba_device_register(&omap3_etb_device, &iomem_resource);
46 amba_device_register(&omap3_etm_device, &iomem_resource);
47
48 return 0;
49 }
50
51 subsys_initcall(emu_init);
52