x86: Add chromebook_link board
This board is a 'bare' version of the existing 'link 'board. It does not
require coreboot to run, but is intended to start directly from the reset
vector.
This initial commit has place holders for a wide range of features. These
will be added in follow-on patches and series. So far it cannot be booted
as there is no ROM image produced, but it does build without errors.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/ivybridge/Kconfig b/arch/x86/cpu/ivybridge/Kconfig
new file mode 100644
index 0000000..177247e
--- /dev/null
+++ b/arch/x86/cpu/ivybridge/Kconfig
@@ -0,0 +1,171 @@
+#
+# From Coreboot src/northbridge/intel/sandybridge/Kconfig
+#
+# Copyright (C) 2010 Google Inc.
+#
+# SPDX-License-Identifier: GPL-2.0
+
+
+config NORTHBRIDGE_INTEL_SANDYBRIDGE
+ bool
+ select CACHE_MRC_BIN
+ select CPU_INTEL_MODEL_206AX
+
+config NORTHBRIDGE_INTEL_IVYBRIDGE
+ bool
+ select CACHE_MRC_BIN
+ select CPU_INTEL_MODEL_306AX
+
+if NORTHBRIDGE_INTEL_SANDYBRIDGE
+
+config VGA_BIOS_ID
+ string
+ default "8086,0106"
+
+config CACHE_MRC_SIZE_KB
+ int
+ default 256
+
+config MRC_CACHE_BASE
+ hex
+ default 0xff800000
+
+config MRC_CACHE_LOCATION
+ hex
+ depends on !CHROMEOS
+ default 0x1ec000
+
+config MRC_CACHE_SIZE
+ hex
+ depends on !CHROMEOS
+ default 0x10000
+
+config DCACHE_RAM_BASE
+ hex
+ default 0xff7f0000
+
+config DCACHE_RAM_SIZE
+ hex
+ default 0x10000
+
+endif
+
+if NORTHBRIDGE_INTEL_IVYBRIDGE
+
+config VGA_BIOS_ID
+ string
+ default "8086,0166"
+
+config EXTERNAL_MRC_BLOB
+ bool
+ default n
+
+config CACHE_MRC_SIZE_KB
+ int
+ default 512
+
+config MRC_CACHE_BASE
+ hex
+ default 0xff800000
+
+config MRC_CACHE_LOCATION
+ hex
+ depends on !CHROMEOS
+ default 0x370000
+
+config MRC_CACHE_SIZE
+ hex
+ depends on !CHROMEOS
+ default 0x10000
+
+config DCACHE_RAM_BASE
+ hex
+ default 0xff7e0000
+
+config DCACHE_RAM_SIZE
+ hex
+ default 0x20000
+
+endif
+
+if NORTHBRIDGE_INTEL_SANDYBRIDGE || NORTHBRIDGE_INTEL_IVYBRIDGE
+
+config HAVE_MRC
+ bool "Add a System Agent binary"
+ help
+ Select this option to add a System Agent binary to
+ the resulting U-Boot image. MRC stands for Memory Reference Code.
+ It is a binary blob which U-Boot uses to set up SDRAM.
+
+ Note: Without this binary U-Boot will not be able to set up its
+ SDRAM so will not boot.
+
+config DCACHE_RAM_MRC_VAR_SIZE
+ hex
+ default 0x4000
+ help
+ This is the amount of CAR (Cache as RAM) reserved for use by the
+ memory reference code. This should be set to 16KB (0x4000 hex)
+ so that MRC has enough space to run.
+
+config MRC_FILE
+ string "Intel System Agent path and filename"
+ depends on HAVE_MRC
+ default "systemagent-ivybridge.bin" if NORTHBRIDGE_INTEL_IVYBRIDGE
+ default "systemagent-sandybridge.bin" if NORTHBRIDGE_INTEL_SANDYBRIDGE
+ help
+ The path and filename of the file to use as System Agent
+ binary.
+
+config CPU_SPECIFIC_OPTIONS
+ def_bool y
+ select SMM_TSEG
+ select ARCH_BOOTBLOCK_X86_32
+ select ARCH_ROMSTAGE_X86_32
+ select ARCH_RAMSTAGE_X86_32
+ select SMP
+ select SSE2
+ select UDELAY_LAPIC
+ select CPU_MICROCODE_IN_CBFS
+ select TSC_SYNC_MFENCE
+ select HAVE_INTEL_ME
+
+config SMM_TSEG_SIZE
+ hex
+ default 0x800000
+
+config ENABLE_VMX
+ bool "Enable VMX for virtualization"
+ default n
+ help
+ Virtual Machine Extensions are provided in many x86 CPUs. These
+ provide various facilities for allowing a host OS to provide an
+ environment where potentially several guest OSes have only
+ limited access to the underlying hardware. This is achieved
+ without resorting to software trapping and/or instruction set
+ emulation (which would be very slow).
+
+ Intel's implementation of this is called VT-x. This option enables
+ VT-x this so that the OS that is booted by U-Boot can make use of
+ these facilities. If this option is not enabled, then the host OS
+ will be unable to support virtualisation, or it will run very
+ slowly.
+
+endif
+
+config CPU_INTEL_SOCKET_RPGA989
+ bool
+
+if CPU_INTEL_SOCKET_RPGA989
+
+config SOCKET_SPECIFIC_OPTIONS # dummy
+ def_bool y
+ select MMX
+ select SSE
+ select CACHE_AS_RAM
+
+config CACHE_MRC_BIN
+ bool
+ default n
+
+endif