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Date: Tue, 9 Nov 2010 12:08:04 -0800
From: dirk.brandewie@...il.com
To: linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
Dirk Brandewie <dirk.brandewie@...il.com>
Subject: [PATCH 1/6] x86: Add CE4100 platform support
From: Thomas Gleixner <tglx@...utronix.de>
Add CE4100 platform support. CE4100 needs early setup like
moorestown.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Dirk Brandewie <dirk.brandewie@...il.com>
---
Documentation/x86/boot.txt | 1 +
arch/x86/Kconfig | 11 +++++++++
arch/x86/include/asm/bootparam.h | 1 +
arch/x86/include/asm/setup.h | 6 +++++
arch/x86/kernel/Makefile | 2 +
arch/x86/kernel/ce4100.c | 46 ++++++++++++++++++++++++++++++++++++++
arch/x86/kernel/head32.c | 3 ++
7 files changed, 70 insertions(+), 0 deletions(-)
create mode 100644 arch/x86/kernel/ce4100.c
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 30b43e1..bdeb81c 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 e832768..84236c9 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 8e62185..c8bfe63 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 d6763b1..db8aa19 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/Makefile b/arch/x86/kernel/Makefile
index 9e13763..3cb25ab 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -101,6 +101,8 @@ obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
+obj-$(CONFIG_X86_INTEL_CE) += ce4100.o
+
microcode-y := microcode_core.o
microcode-$(CONFIG_MICROCODE_INTEL) += microcode_intel.o
microcode-$(CONFIG_MICROCODE_AMD) += microcode_amd.o
diff --git a/arch/x86/kernel/ce4100.c b/arch/x86/kernel/ce4100.c
new file mode 100644
index 0000000..b8f1c48
--- /dev/null
+++ b/arch/x86/kernel/ce4100.c
@@ -0,0 +1,46 @@
+/*
+ * 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;
+}
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 7633101..7f138b3 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;
--
1.7.2.3
--
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