Commit ddd70cf9 authored by Jun Nakajima's avatar Jun Nakajima Committed by H. Peter Anvin
Browse files

goldfish: platform device for x86 



Based on code by Jun Nakajima but stripped of all the old x86 mach-foo
stuff and turned into a single file for the Goldfish virtual bus layer.

The actual created platform device and bus enumeration is portable between the
ARM and x86 Goldfish emulations.

Signed-off-by: default avatarSheng Yang <sheng@linux.intel.com>
Link: http://lkml.kernel.org/r/20130121172205.19517.22535.stgit@bob.linux.org.uk


Signed-off-by: default avatarYunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: default avatarXiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: default avatarJun Nakajima <jun.nakajima@intel.com>
Signed-off-by: default avatarBruce Beare <bruce.j.beare@intel.com>
[Ported to 3.7 and reorganised so that we can keep most of the code
 shared properly]
Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
parent 7d1f9aef

arch/x86/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -320,6 +320,10 @@ config X86_BIGSMP 
	---help---

	  This option is needed for the systems that have more than 8 CPUs



config GOLDFISH

       def_bool y

       depends on X86_GOLDFISH



if X86_32

config X86_EXTENDED_PLATFORM

	bool "Support for extended (non-PC) x86 platforms"
@@ -402,6 +406,14 @@ config X86_UV 
# Following is an alphabetically sorted list of 32 bit extended platforms

# Please maintain the alphabetic order if and when there are additions



config X86_GOLDFISH

       bool "Goldfish (Virtual Platform)"

       depends on X86_32

       ---help---

	 Enable support for the Goldfish virtual platform used primarily

	 for Android development. Unless you are building for the Android

	 Goldfish emulator say N here.



config X86_INTEL_CE

	bool "CE4100 TV platform"

	depends on PCI

arch/x86/platform/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
obj-y	+= ce4100/

obj-y	+= efi/

obj-y	+= geode/

obj-y	+= goldfish/

obj-y	+= iris/

obj-y	+= mrst/

obj-y	+= olpc/

arch/x86/platform/goldfish/Makefile

0 → 100644
+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_GOLDFISH)	+= goldfish.o

arch/x86/platform/goldfish/goldfish.c

0 → 100644
+51 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2007 Google, Inc.

 * Copyright (C) 2011 Intel, Inc.

 * Copyright (C) 2013 Intel, Inc.

 *

 * This software is licensed under the terms of the GNU General Public

 * License version 2, as published by the Free Software Foundation, and

 * may be copied, distributed, and modified under those terms.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 */



#include <linux/kernel.h>

#include <linux/irq.h>

#include <linux/platform_device.h>



/*

 * Where in virtual device memory the IO devices (timers, system controllers

 * and so on)

 */



#define GOLDFISH_PDEV_BUS_BASE	(0xff001000)

#define GOLDFISH_PDEV_BUS_END	(0xff7fffff)

#define GOLDFISH_PDEV_BUS_IRQ	(4)



#define GOLDFISH_TTY_BASE	(0x2000)



static struct resource goldfish_pdev_bus_resources[] = {

	{

		.start  = GOLDFISH_PDEV_BUS_BASE,

		.end    = GOLDFISH_PDEV_BUS_END,

		.flags  = IORESOURCE_MEM,

	},

	{

		.start	= GOLDFISH_PDEV_BUS_IRQ,

		.end	= GOLDFISH_PDEV_BUS_IRQ,

		.flags	= IORESOURCE_IRQ,

	}

};



static int __init goldfish_init(void)

{

	platform_device_register_simple("goldfish_pdev_bus", -1,

						goldfish_pdev_bus_resources, 2);

	return 0;

}

device_initcall(goldfish_init);

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