x86: Add basic support for broadwell

This adds the broadwell architecture, with the CPU driver and some useful
header files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/include/asm/arch-broadwell/iomap.h b/arch/x86/include/asm/arch-broadwell/iomap.h
new file mode 100644
index 0000000..431bc23
--- /dev/null
+++ b/arch/x86/include/asm/arch-broadwell/iomap.h
@@ -0,0 +1,53 @@
+/*
+ * From Coreboot soc/intel/broadwell/include/soc/iomap.h
+ *
+ * Copyright (C) 2016 Google Inc.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ */
+
+#ifndef __asm_arch_iomap_h
+#define __asm_arch_iomap_h
+
+#define MCFG_BASE_ADDRESS	0xf0000000
+#define MCFG_BASE_SIZE		0x4000000
+
+#define HPET_BASE_ADDRESS	0xfed00000
+
+#define MCH_BASE_ADDRESS	0xfed10000
+#define MCH_BASE_SIZE		0x8000
+
+#define DMI_BASE_ADDRESS	0xfed18000
+#define DMI_BASE_SIZE		0x1000
+
+#define EP_BASE_ADDRESS		0xfed19000
+#define EP_BASE_SIZE		0x1000
+
+#define EDRAM_BASE_ADDRESS	0xfed80000
+#define EDRAM_BASE_SIZE		0x4000
+
+#define GDXC_BASE_ADDRESS	0xfed84000
+#define GDXC_BASE_SIZE		0x1000
+
+#define RCBA_BASE_ADDRESS	0xfed1c000
+#define RCBA_BASE_SIZE		0x4000
+
+#define HPET_BASE_ADDRESS	0xfed00000
+
+#define ACPI_BASE_ADDRESS	0x1000
+#define ACPI_BASE_SIZE		0x100
+
+#define GPIO_BASE_ADDRESS	0x1400
+#define GPIO_BASE_SIZE		0x400
+
+#define SMBUS_BASE_ADDRESS	0x0400
+#define SMBUS_BASE_SIZE		0x10
+
+/* Temporary addresses used before relocation */
+#define EARLY_GTT_BAR		0xe0000000
+#define EARLY_XHCI_BAR		0xd7000000
+#define EARLY_EHCI_BAR		0xd8000000
+#define EARLY_UART_BAR		0x3f8
+#define EARLY_TEMP_MMIO		0xfed08000
+
+#endif