x86: Add CE4100 platform support

Add CE4100 platform support. CE4100 needs early setup like
moorestown.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
LKML-Reference: <94720fd7f5564a12ebf202cf2c4f4c0d619aab35.1289331834.git.dirk.brandewie@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

8 files changed, 66 insertions, 0 deletions

diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 30b43e1b2697..bdeb81ccb5f6 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -600,6 +600,7 @@ Protocol:	2.07+
   0x00000001    lguest
   0x00000002    Xen
   0x00000003    Moorestown MID
+  0x00000004    CE4100 TV Platform
 
 Field name:     hardware_subarch_data
 Type:           write (subarch-dependent)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b306b84fc8c8..43951c9c7435 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -377,6 +377,17 @@ config X86_ELAN
 
           If unsure, choose "PC-compatible" instead.
 
+config X86_INTEL_CE
+        bool "CE4100 TV platform"
+        depends on PCI
+        depends on PCI_GODIRECT
+        depends on X86_32
+        depends on X86_EXTENDED_PLATFORM
+        ---help---
+          Select for the Intel CE media processor (CE4100) SOC.
+          This option compiles in support for the CE4100 SOC for settop
+          boxes and media devices.
+
 config X86_MRST
        bool "Moorestown MID platform"
         depends on PCI
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 8e6218550e77..c8bfe63a06de 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -124,6 +124,7 @@ enum {
         X86_SUBARCH_LGUEST,
         X86_SUBARCH_XEN,
         X86_SUBARCH_MRST,
+        X86_SUBARCH_CE4100,
         X86_NR_SUBARCHS,
 };
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index d6763b139a84..db8aa19a08a2 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -53,6 +53,12 @@ extern void x86_mrst_early_setup(void);
 static inline void x86_mrst_early_setup(void) { }
 #endif
 
+#ifdef CONFIG_X86_INTEL_CE
+extern void x86_ce4100_early_setup(void);
+#else
+static inline void x86_ce4100_early_setup(void) { }
+#endif
+
 #ifndef _SETUP
 
 /*
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 763310165fa0..7f138b3c3c52 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -61,6 +61,9 @@ void __init i386_start_kernel(void)
         case X86_SUBARCH_MRST:
                 x86_mrst_early_setup();
                 break;
+        case X86_SUBARCH_CE4100:
+                x86_ce4100_early_setup();
+                break;
         default:
                 i386_default_early_setup();
                 break;
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 7bf70b812fa2..a019bc3088a0 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -1,4 +1,5 @@
 # Platform specific code goes here
+obj-y   += ce4100/
 obj-y   += efi/
 obj-y   += mrst/
 obj-y   += olpc/
diff --git a/arch/x86/platform/ce4100/Makefile b/arch/x86/platform/ce4100/Makefile
new file mode 100644
index 000000000000..91fc92971d94
--- /dev/null
+++ b/arch/x86/platform/ce4100/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_X86_INTEL_CE)      += ce4100.o
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
new file mode 100644
index 000000000000..0ede12bde456
--- /dev/null
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -0,0 +1,42 @@
+/*
+ * Intel CE4100  platform specific setup code
+ *
+ * (C) Copyright 2010 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+
+#include <asm/setup.h>
+
+static int ce4100_i8042_detect(void)
+{
+        return 0;
+}
+
+static void __init sdv_arch_setup(void)
+{
+}
+
+static void __init sdv_find_smp_config(void)
+{
+}
+
+/*
+ * CE4100 specific x86_init function overrides and early setup
+ * calls.
+ */
+void __init x86_ce4100_early_setup(void)
+{
+        x86_init.oem.arch_setup = sdv_arch_setup;
+        x86_platform.i8042_detect = ce4100_i8042_detect;
+        x86_init.resources.probe_roms = x86_init_noop;
+        x86_init.mpparse.get_smp_config = x86_init_uint_noop;
+        x86_init.mpparse.find_smp_config = sdv_find_smp_config;
+}