linux-kernel - [PATCH 1/2] goldfish: definitions for Goldfish on x86 platforms

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Message-ID: <20121219203418.9208.21038.stgit@bob.linux.org.uk>
Date:	Wed, 19 Dec 2012 20:34:20 +0000
From:	Alan Cox <alan@...ux.intel.com>
To:	x86@...nel.org, linux-kernel@...r.kernel.org, hpa@...or.com
Subject: [PATCH 1/2] goldfish: definitions for Goldfish on x86 platforms

From: Jun Nakajima <jnakajim@...il.com>

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

Signed-off-by: Sheng Yang <sheng@...ux.intel.com>
Signed-off-by: Yunhong Jiang <yunhong.jiang@...el.com>
Signed-off-by: Xiaohui Xin <xiaohui.xin@...el.com>
Signed-off-by: Jun Nakajima <jun.nakajima@...el.com>
Signed-off-by: Bruce Beare <bruce.j.beare@...el.com>
[Ported to 3.7 and reorganised so that we can keep most of the code
 shared properly]
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---

 arch/x86/Kconfig                |   12 ++++++++++++
 arch/x86/include/asm/goldfish.h |   33 +++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 arch/x86/include/asm/goldfish.h


diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2b8f547..df468c3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -321,6 +321,10 @@ 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"
@@ -403,6 +407,14 @@ 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
diff --git a/arch/x86/include/asm/goldfish.h b/arch/x86/include/asm/goldfish.h
new file mode 100644
index 0000000..8d2c559
--- /dev/null
+++ b/arch/x86/include/asm/goldfish.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2007 Google, Inc.
+ * Copyright (C) 2012 Intel, Corp.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __X86_ARCH_HARDWARE_H
+#define __X86_ARCH_HARDWARE_H
+
+/*
+ * Where in virtual memory the IO devices (timers, system controllers
+ * and so on)
+ */
+
+#define GOLDFISH_IO_SIZE	0x00800000	/* How much? */
+#define GOLDFISH_IO_START	0xff000000	/* PA of IO */
+
+#define GOLDFISH_PDEV_BUS_BASE	(0x1000)
+#define GOLDFISH_PDEV_BUS_END	(0x100)
+#define GOLDFISH_PDEV_BUS_IRQ	(4)
+
+#define GOLDFISH_TTY_BASE	(0x2000)
+
+#endif

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