diff options
author | Alexander Shishkin <virtuoso@slind.org> | 2009-12-01 16:03:31 +0300 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-12-02 13:25:23 +0300 |
commit | 183bd50f4fe6cd49c1790a90163e3d1ece80f344 (patch) | |
tree | e3c5f25de7f2f36b4a18c99d55c435f5244e6864 /arch/arm/mach-omap2/emu.c | |
parent | c5d6c7708c3e58015b2e4e13e6cea02c8567a94e (diff) | |
download | linux-183bd50f4fe6cd49c1790a90163e3d1ece80f344.tar.xz |
ARM: 5843/1: OMAP3: add AMBA devices for ETM and ETB
This enables on-chip tracing components found in omap3xxx.
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap2/emu.c')
-rw-r--r-- | arch/arm/mach-omap2/emu.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/emu.c b/arch/arm/mach-omap2/emu.c new file mode 100644 index 000000000000..ec0d984a26fc --- /dev/null +++ b/arch/arm/mach-omap2/emu.c @@ -0,0 +1,66 @@ +/* + * 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) +{ + amba_device_register(&omap3_etb_device, &iomem_resource); + amba_device_register(&omap3_etm_device, &iomem_resource); + + return 0; +} + +subsys_initcall(emu_init); + |