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>

diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 30b43e1..bdeb81c 100644 (file)
--- 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 b306b84..43951c9 100644 (file)
--- 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 8e62185..c8bfe63 100644 (file)
--- 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 d6763b1..db8aa19 100644 (file)
--- 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 7633101..7f138b3 100644 (file)
--- 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 7bf70b8..a019bc3 100644 (file)
--- 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 (file)
index 0000000..91fc929
--- /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 (file)
index 0000000..0ede12b
--- /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;
+}