arch: introduce architecture dependent common variables

Stefan and others have discussed their interest in only
including options in Kconfig that are directly associated
with building a coreboot image. There are variables that
are architecture dependent that are utilized in the
coreboot infrastructure. To meet that goal, introduce
<arch/cbconfig.h> header file which defines variables
for the coreboot infrastructure that are architecture
dependent but utilized in common infrastructure.

Change-Id: Ic4cb9e81bab042797539dce004db0f7ee8526ea6
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14454
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)

src/arch/arm/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif

src/arch/arm64/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif

src/arch/mips/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif

src/arch/power8/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif

src/arch/riscv/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif

src/arch/x86/include/arch/cbconfig.h

@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ *
+ * 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 _ARCH_CBCONFIG_H_
+#define _ARCH_CBCONFIG_H_
+
+/*
+ * Instead of using Kconfig variables for internal coreboot infrastructure
+ * variables that are architecture dependent land those things in this file.
+ * If it's not obvious all variables that are used in the common code need
+ * to have the same name across all architectures.
+ */
+
+#endif