emulation/qemu-power8: initial mainboard and arch commit

This builds and produces an image.

The next step is to get a 'halt' instruction into the boot block and then attach with qemu.

I can't get the powerpc64le-linux-gnu-ld.bfd to recognize any output arch but
powerpc. That makes no sense to me.

Change-Id: Ia2a5fe07a1457e7b6974ab1473539c7447d7a449
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/13704
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

31 files changed, 1018 insertions, 0 deletions

diff --git a/src/arch/power8/Kconfig b/src/arch/power8/Kconfig
new file mode 100644
index 0000000000..476de2b3a6
--- /dev/null
+++ b/src/arch/power8/Kconfig
@@ -0,0 +1,25 @@
+config ARCH_POWER8
+	bool
+	default n
+
+config ARCH_BOOTBLOCK_POWER8
+	bool
+	default n
+	select ARCH_POWER8
+	select BOOTBLOCK_CUSTOM
+	select C_ENVIRONMENT_BOOTBLOCK
+	select ARCH_VERSTAGE_POWER8
+	select ARCH_ROMSTAGE_POWER8
+	select ARCH_RAMSTAGE_POWER8
+
+config ARCH_VERSTAGE_POWER8
+	bool
+	default n
+
+config ARCH_ROMSTAGE_POWER8
+	bool
+	default n
+
+config ARCH_RAMSTAGE_POWER8
+	bool
+	default n
diff --git a/src/arch/power8/Makefile.inc b/src/arch/power8/Makefile.inc
new file mode 100644
index 0000000000..54e97f966a
--- /dev/null
+++ b/src/arch/power8/Makefile.inc
@@ -0,0 +1,107 @@
+################################################################################
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 The ChromiumOS Authors
+##
+## 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.
+##
+################################################################################
+
+power8_flags = -I$(src)/arch/power8/
+
+power8_asm_flags =
+
+################################################################################
+## bootblock
+################################################################################
+ifeq ($(CONFIG_ARCH_BOOTBLOCK_POWER8),y)
+
+bootblock-y = bootblock.S stages.c
+bootblock-y += boot.c
+bootblock-y += rom_media.c
+bootblock-y += \
+	$(top)/src/lib/memchr.c \
+	$(top)/src/lib/memcmp.c \
+	$(top)/src/lib/memcpy.c \
+	$(top)/src/lib/memmove.c \
+	$(top)/src/lib/memset.c
+
+$(objcbfs)/bootblock.debug: $$(bootblock-objs)
+	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) \
+		-T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) \
+		$(LIBGCC_FILE_NAME_bootblock) --end-group $(COMPILER_RT_bootblock)
+
+endif
+
+################################################################################
+## romstage
+################################################################################
+ifeq ($(CONFIG_ARCH_ROMSTAGE_POWER8),y)
+
+romstage-y += boot.c
+romstage-y += stages.c
+romstage-y += rom_media.c
+romstage-y += \
+	$(top)/src/lib/memchr.c \
+	$(top)/src/lib/memcmp.c \
+	$(top)/src/lib/memcpy.c \
+	$(top)/src/lib/memmove.c \
+	$(top)/src/lib/memset.c
+
+romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
+
+# Build the romstage
+
+$(objcbfs)/romstage.debug: $$(romstage-objs)
+	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
+	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group $(COMPILER_RT_romstage)
+
+romstage-c-ccopts += $(power8_flags)
+romstage-S-ccopts += $(power8_asm_flags)
+
+CBFSTOOL_PRE1_OPTS = -v -m power8 -s $(CONFIG_CBFS_SIZE)
+
+endif
+
+################################################################################
+## ramstage
+################################################################################
+ifeq ($(CONFIG_ARCH_RAMSTAGE_POWER8),y)
+
+ramstage-y += rom_media.c
+ramstage-y += stages.c
+ramstage-y += misc.c
+ramstage-y += boot.c
+ramstage-y += tables.c
+ramstage-y += \
+	$(top)/src/lib/memchr.c \
+	$(top)/src/lib/memcmp.c \
+	$(top)/src/lib/memcpy.c \
+	$(top)/src/lib/memmove.c \
+	$(top)/src/lib/memset.c
+
+$(eval $(call create_class_compiler,rmodules,power8))
+
+ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
+
+ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/mainboard.c
+
+# Build the ramstage
+
+$(objcbfs)/ramstage.debug: $$(ramstage-objs)
+	@printf "    CC         $(subst $(obj)/,,$(@))\n"
+	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group $(COMPILER_RT_ramstage)
+
+ramstage-c-ccopts += $(power8_flags)
+ramstage-S-ccopts += $(power8_asm_flags)
+
+endif
diff --git a/src/arch/power8/boot.c b/src/arch/power8/boot.c
new file mode 100644
index 0000000000..4da60b4e6c
--- /dev/null
+++ b/src/arch/power8/boot.c
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 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.
+ */
+
+#include <program_loading.h>
+
+void arch_prog_run(struct prog *prog)
+{
+	void (*doit)(void *) = prog_entry(prog);
+
+	doit(prog_entry_arg(prog));
+}
diff --git a/src/arch/power8/bootblock.S b/src/arch/power8/bootblock.S
new file mode 100644
index 0000000000..3b864aa21a
--- /dev/null
+++ b/src/arch/power8/bootblock.S
@@ -0,0 +1,44 @@
+/*
+ * Early initialization code for power8.
+ *
+ * Copyright 2013 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.
+ */
+
+.section ".text._start", "ax", %progbits
+.globl _start
+_start:
+	b _start
+	.section ".id", "a", %progbits
+
+	.section ".id", "a", @progbits
+
+	.globl __id_start
+__id_start:
+ver:
+	.asciz "4" //COREBOOT_VERSION
+vendor:
+	.asciz "qemu" //CONFIG_MAINBOARD_VENDOR
+part:
+	.asciz "1" //CONFIG_MAINBOARD_PART_NUMBER
+	/* Reverse offset to the vendor id */
+.long __id_end + CONFIG_ID_SECTION_OFFSET - ver
+	/* Reverse offset to the vendor id */
+.long __id_end + CONFIG_ID_SECTION_OFFSET - vendor
+	/* Reverse offset to the part number */
+.long __id_end + CONFIG_ID_SECTION_OFFSET - part
+	/* of this romimage */
+.long CONFIG_ROM_SIZE
+	.globl __id_end
+
+__id_end:
+.previous
diff --git a/src/arch/power8/id.ld b/src/arch/power8/id.ld
new file mode 100644
index 0000000000..932375665e
--- /dev/null
+++ b/src/arch/power8/id.ld
@@ -0,0 +1,19 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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.
+ */
+
+SECTIONS {
+	. = (0xffffffff - CONFIG_ID_SECTION_OFFSET) - (__id_end - __id_start) + 1;
+	.id (.): {
+		*(.id)
+	}
+}
diff --git a/src/arch/power8/include/arch/byteorder.h b/src/arch/power8/include/arch/byteorder.h
new file mode 100644
index 0000000000..37cb8b6df6
--- /dev/null
+++ b/src/arch/power8/include/arch/byteorder.h
@@ -0,0 +1,19 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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 _BYTEORDER_H
+#define _BYTEORDER_H
+
+#define __LITTLE_ENDIAN 1234
+
+#endif /* _BYTEORDER_H */
diff --git a/src/arch/power8/include/arch/cpu.h b/src/arch/power8/include/arch/cpu.h
new file mode 100644
index 0000000000..45ebc14367
--- /dev/null
+++ b/src/arch/power8/include/arch/cpu.h
@@ -0,0 +1,48 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2012 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_CPU_H__
+#define __ARCH_CPU_H__
+
+#define asmlinkage
+
+#if !defined(__PRE_RAM__)
+#include <device/device.h>
+
+struct cpu_driver {
+	struct device_operations *ops;
+	struct cpu_device_id *id_table;
+};
+
+struct thread;
+
+struct cpu_info {
+	device_t cpu;
+	unsigned long index;
+#if CONFIG_COOP_MULTITASKING
+	struct thread *thread;
+#endif
+};
+
+struct cpuinfo_power8 {
+	uint8_t    power8;            /* CPU family */
+	uint8_t    power8_vendor;     /* CPU vendor */
+	uint8_t    power8_model;
+};
+
+#endif
+
+struct cpu_info *cpu_info(void);
+#endif /* __ARCH_CPU_H__ */
diff --git a/src/arch/power8/include/arch/early_variables.h b/src/arch/power8/include/arch/early_variables.h
new file mode 100644
index 0000000000..99fc06bb18
--- /dev/null
+++ b/src/arch/power8/include/arch/early_variables.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ *
+ * 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_EARLY_VARIABLES_H
+#define ARCH_EARLY_VARIABLES_H
+
+#define CAR_GLOBAL
+
+#define CAR_MIGRATE(migrate_fn_)
+static inline void *car_get_var_ptr(void *var) { return var; }
+#define car_get_var(var) (var)
+#define car_sync_var(var) (var)
+
+#define car_set_var(var, val) do { (var) = (val); } while (0)
+
+#endif
diff --git a/src/arch/power8/include/arch/exception.h b/src/arch/power8/include/arch/exception.h
new file mode 100644
index 0000000000..07030e5b95
--- /dev/null
+++ b/src/arch/power8/include/arch/exception.h
@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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_EXCEPTION_H
+#define _ARCH_EXCEPTION_H
+
+static inline void exception_init(void)
+{
+}
+
+#endif
diff --git a/src/arch/power8/include/arch/header.ld b/src/arch/power8/include/arch/header.ld
new file mode 100644
index 0000000000..7fdc155586
--- /dev/null
+++ b/src/arch/power8/include/arch/header.ld
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+/* We use ELF as output format. So that we can debug the code in some form. */
+OUTPUT_ARCH(powerpc)
+
+PHDRS
+{
+	to_load PT_LOAD;
+}
+
+#ifdef __BOOTBLOCK__
+ENTRY(_start)
+#else
+ENTRY(stage_entry)
+#endif
diff --git a/src/arch/power8/include/arch/hlt.h b/src/arch/power8/include/arch/hlt.h
new file mode 100644
index 0000000000..21919d230b
--- /dev/null
+++ b/src/arch/power8/include/arch/hlt.h
@@ -0,0 +1,18 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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.
+ */
+
+static inline __attribute__ ((always_inline)) void hlt(void)
+{
+	while (1)
+		;
+}
diff --git a/src/arch/power8/include/arch/io.h b/src/arch/power8/include/arch/io.h
new file mode 100644
index 0000000000..804d7dc1b1
--- /dev/null
+++ b/src/arch/power8/include/arch/io.h
@@ -0,0 +1,48 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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 _ASM_IO_H
+#define _ASM_IO_H
+
+#include <stdint.h>
+
+static inline void outb(uint8_t value, uint16_t port)
+{
+}
+
+static inline void outw(uint16_t value, uint16_t port)
+{
+}
+
+static inline void outl(uint32_t value, uint16_t port)
+{
+}
+
+
+static inline uint8_t inb(uint16_t port)
+{
+	return 0;
+}
+
+
+static inline uint16_t inw(uint16_t port)
+{
+	return 0;
+}
+
+static inline uint32_t inl(uint16_t port)
+{
+	return 0;
+}
+
+#endif
diff --git a/src/arch/power8/include/arch/memlayout.h b/src/arch/power8/include/arch/memlayout.h
new file mode 100644
index 0000000000..4d2af5953d
--- /dev/null
+++ b/src/arch/power8/include/arch/memlayout.h
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+/* This file contains macro definitions for memlayout.ld linker scripts. */
+
+#ifndef __ARCH_MEMLAYOUT_H
+#define __ARCH_MEMLAYOUT_H
+
+/* TODO: Double-check that that's the correct alignment for our ABI. */
+#define STACK(addr, size) REGION(stack, addr, size, 8)
+
+/* TODO: Need to add DMA_COHERENT region like on ARM? */
+
+#endif /* __ARCH_MEMLAYOUT_H */
diff --git a/src/arch/power8/include/arch/stages.h b/src/arch/power8/include/arch/stages.h
new file mode 100644
index 0000000000..90bd60b9a6
--- /dev/null
+++ b/src/arch/power8/include/arch/stages.h
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 The ChromiumOS Authors
+ *
+ * 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_STAGES_H
+#define __ARCH_STAGES_H
+
+#include <main_decl.h>
+
+void stage_entry(void) __attribute__((section(".text.stage_entry")));
+
+#endif
diff --git a/src/arch/power8/include/stdint.h b/src/arch/power8/include/stdint.h
new file mode 100644
index 0000000000..8cb34eea75
--- /dev/null
+++ b/src/arch/power8/include/stdint.h
@@ -0,0 +1,76 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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 POWER8_STDINT_H
+#define POWER8_STDINT_H
+
+/* Exact integral types */
+typedef unsigned char      uint8_t;
+typedef signed char        int8_t;
+
+typedef unsigned short     uint16_t;
+typedef signed short       int16_t;
+
+typedef unsigned int       uint32_t;
+typedef signed int         int32_t;
+
+typedef unsigned long long uint64_t;
+typedef signed long long   int64_t;
+
+/* Small types */
+typedef unsigned char      uint_least8_t;
+typedef signed char        int_least8_t;
+
+typedef unsigned short     uint_least16_t;
+typedef signed short       int_least16_t;
+
+typedef unsigned int       uint_least32_t;
+typedef signed int         int_least32_t;
+
+typedef unsigned long long uint_least64_t;
+typedef signed long long   int_least64_t;
+
+/* Fast Types */
+typedef unsigned char      uint_fast8_t;
+typedef signed char        int_fast8_t;
+
+typedef unsigned int       uint_fast16_t;
+typedef signed int         int_fast16_t;
+
+typedef unsigned int       uint_fast32_t;
+typedef signed int         int_fast32_t;
+
+typedef unsigned long long uint_fast64_t;
+typedef signed long long   int_fast64_t;
+
+typedef long long int      intmax_t;
+typedef unsigned long long uintmax_t;
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+typedef int8_t s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64;
+
+typedef uint8_t bool;
+#define true	1
+#define false	0
+
+/* Types for `void *' pointers.  */
+typedef s64             intptr_t;
+typedef u64		uintptr_t;
+
+#endif /* POWER8_STDINT_H */
diff --git a/src/arch/power8/misc.c b/src/arch/power8/misc.c
new file mode 100644
index 0000000000..65b8ecf02f
--- /dev/null
+++ b/src/arch/power8/misc.c
@@ -0,0 +1,22 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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.
+ */
+
+#include <delay.h>
+
+void init_timer(void)
+{
+}
+
+void udelay(unsigned int n)
+{
+}
diff --git a/src/arch/power8/prologue.inc b/src/arch/power8/prologue.inc
new file mode 100644
index 0000000000..a349cf97b3
--- /dev/null
+++ b/src/arch/power8/prologue.inc
@@ -0,0 +1,17 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2002 Eric Biederman
+ *
+ * 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.
+ */
+
+.section ".rom.data", "a", @progbits
+.section ".rom.text", "ax", @progbits
diff --git a/src/arch/power8/rom_media.c b/src/arch/power8/rom_media.c
new file mode 100644
index 0000000000..0c54e7abfd
--- /dev/null
+++ b/src/arch/power8/rom_media.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 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.
+ */
+#include <boot_device.h>
+
+/* This assumes that the CBFS resides at 0x0, which is true for the default
+ * configuration. */
+static const struct mem_region_device boot_dev =
+	MEM_REGION_DEV_INIT(NULL, CONFIG_ROM_SIZE);
+
+const struct region_device *boot_device_ro(void)
+{
+	return &boot_dev.rdev;
+}
diff --git a/src/arch/power8/stages.c b/src/arch/power8/stages.c
new file mode 100644
index 0000000000..053fd7634c
--- /dev/null
+++ b/src/arch/power8/stages.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+/*
+ * This file contains entry/exit functions for each stage during coreboot
+ * execution (bootblock entry and ramstage exit will depend on external
+ * loading).
+ *
+ * Entry points must be placed at the location the previous stage jumps
+ * to (the lowest address in the stage image). This is done by giving
+ * stage_entry() its own section in .text and placing it first in the
+ * linker script.
+ */
+
+#include <arch/stages.h>
+
+void stage_entry(void)
+{
+	main();
+}
diff --git a/src/arch/power8/tables.c b/src/arch/power8/tables.c
new file mode 100644
index 0000000000..d2b2f349d0
--- /dev/null
+++ b/src/arch/power8/tables.c
@@ -0,0 +1,70 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2003 Eric Biederman
+ * Copyright (C) 2005 Steve Magnani
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * 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.
+ */
+
+#include <console/console.h>
+#include <cpu/cpu.h>
+#include <boot/tables.h>
+#include <boot/coreboot_tables.h>
+#include <string.h>
+#include <cbmem.h>
+#include <lib.h>
+
+#define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
+
+// WTF. this does not agree with the prototype!
+static struct lb_memory *wtf_write_tables(void)
+{
+	unsigned long table_pointer, new_table_pointer;
+
+	post_code(0x9d);
+
+	table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE,
+						MAX_COREBOOT_TABLE_SIZE);
+	if (!table_pointer) {
+		printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n");
+		return NULL;
+	}
+
+	new_table_pointer = write_coreboot_table(0UL, 0UL,
+				table_pointer, table_pointer);
+
+	if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE)) {
+		printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n",
+			   new_table_pointer - table_pointer,
+				MAX_COREBOOT_TABLE_SIZE);
+	}
+
+	printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n",
+			new_table_pointer - table_pointer);
+
+	post_code(0x9e);
+
+	/* Print CBMEM sections */
+	cbmem_list();
+
+//	return get_lb_mem();
+	return NULL;
+}
+
+void lb_arch_add_records(struct lb_header *header)
+{
+}
+
+void write_tables(void)
+{
+	wtf_write_tables();
+}
diff --git a/src/mainboard/emulation/qemu-power8/Kconfig b/src/mainboard/emulation/qemu-power8/Kconfig
new file mode 100644
index 0000000000..556322aae9
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/Kconfig
@@ -0,0 +1,53 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## 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.
+
+# To execute, do:
+# qemu-system-??
+
+if BOARD_EMULATION_QEMU_POWER8
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select BOARD_ROMSIZE_KB_4096
+	select ARCH_BOOTBLOCK_POWER8
+	select HAVE_UART_SPECIAL
+	select ARCH_POWER8
+
+config MAINBOARD_DIR
+	string
+	default "emulation/qemu-power8"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "QEMU POWER8"
+
+config MAX_CPUS
+	int
+	default 1
+
+config MAINBOARD_VENDOR
+	string
+	default "QEMU"
+
+config DRAM_SIZE_MB
+	int
+	default 32768
+
+# Memory map for qemu power8
+
+config RAMTOP
+	hex
+	default 0x1000000
+
+endif #  BOARD_EMULATION_QEMU_POWER8
diff --git a/src/mainboard/emulation/qemu-power8/Kconfig.name b/src/mainboard/emulation/qemu-power8/Kconfig.name
new file mode 100644
index 0000000000..34fdddc2f8
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_EMULATION_QEMU_POWER8
+	bool "QEMU power8"
diff --git a/src/mainboard/emulation/qemu-power8/Makefile.inc b/src/mainboard/emulation/qemu-power8/Makefile.inc
new file mode 100644
index 0000000000..db005bbab8
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/Makefile.inc
@@ -0,0 +1,25 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013 Google Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## 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.
+
+bootblock-y += bootblock.c
+bootblock-y += uart.c
+romstage-y += cbmem.c
+ramstage-y += cbmem.c
+romstage-y += romstage.c
+romstage-y += uart.c
+ramstage-y += uart.c
+
+bootblock-y += memlayout.ld
+romstage-y += memlayout.ld
+ramstage-y += memlayout.ld
diff --git a/src/mainboard/emulation/qemu-power8/board_info.txt b/src/mainboard/emulation/qemu-power8/board_info.txt
new file mode 100644
index 0000000000..9f5782581d
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/board_info.txt
@@ -0,0 +1,2 @@
+Board name: QEMU POWER8
+Category: emulation
diff --git a/src/mainboard/emulation/qemu-power8/bootblock.c b/src/mainboard/emulation/qemu-power8/bootblock.c
new file mode 100644
index 0000000000..d92c16951a
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/bootblock.c
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 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.
+ */
+
+#include <bootblock_common.h>
+#include <console/console.h>
+#include <program_loading.h>
+
+// the qemu part of all this is very, very non-hardware like.
+// so it gets its own bootblock.
+void main(void)
+{
+	if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) {
+		console_init();
+	}
+
+	run_romstage();
+}
diff --git a/src/mainboard/emulation/qemu-power8/cbmem.c b/src/mainboard/emulation/qemu-power8/cbmem.c
new file mode 100644
index 0000000000..bf5c0bcc79
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/cbmem.c
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <cbmem.h>
+
+void *cbmem_top(void)
+{
+	/* Top of cbmem is at lowest usable DRAM address below 4GiB. */
+	/* For now, last 1M of 4G */
+	void *ptr = (void *) ((1ULL << 32) - 1048576);
+	return ptr;
+}
+
diff --git a/src/mainboard/emulation/qemu-power8/devicetree.cb b/src/mainboard/emulation/qemu-power8/devicetree.cb
new file mode 100644
index 0000000000..6096ad0a6f
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/devicetree.cb
@@ -0,0 +1,17 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google, Inc.
+##
+## This software is licensed under the terms of the GNU General Public
+## License version 2, as published by the Free Software Foundation, and
+## may be copied, distributed, and modified under those terms.
+##
+## 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.
+
+chip cpu/qemu-power8
+	device cpu_cluster 0 on end
+end
diff --git a/src/mainboard/emulation/qemu-power8/mainboard.c b/src/mainboard/emulation/qemu-power8/mainboard.c
new file mode 100644
index 0000000000..b7a7213d2c
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/mainboard.c
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <cbmem.h>
+
+static void mainboard_enable(device_t dev)
+{
+
+	if (!dev) {
+		printk(BIOS_EMERG, "No dev0; die\n");
+		while (1)
+			;
+	}
+
+	// Where does ram live?
+	ram_resource(dev, 0, 2048, 32768);
+	cbmem_recovery(0);
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};
diff --git a/src/mainboard/emulation/qemu-power8/memlayout.ld b/src/mainboard/emulation/qemu-power8/memlayout.ld
new file mode 100644
index 0000000000..2daad3069d
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/memlayout.ld
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+#include <memlayout.h>
+
+#include <arch/header.ld>
+
+// TODO: fill in these blanks for Power8.
+SECTIONS
+{
+	DRAM_START(0x0)
+	BOOTBLOCK(0x0, 64K)
+	ROMSTAGE(0x20000, 128K)
+	STACK(0x40000, 0x3ff00)
+	PRERAM_CBMEM_CONSOLE(0x80000, 8K)
+	RAMSTAGE(0x100000, 16M)
+}
diff --git a/src/mainboard/emulation/qemu-power8/romstage.c b/src/mainboard/emulation/qemu-power8/romstage.c
new file mode 100644
index 0000000000..b6314ccd1c
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/romstage.c
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <console/console.h>
+#include <program_loading.h>
+
+void main(void)
+{
+	console_init();
+	run_ramstage();
+}
diff --git a/src/mainboard/emulation/qemu-power8/uart.c b/src/mainboard/emulation/qemu-power8/uart.c
new file mode 100644
index 0000000000..508d679c5c
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/uart.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+#include <types.h>
+#include <console/uart.h>
+#include <arch/io.h>
+#include <boot/coreboot_tables.h>
+
+static uint8_t *buf = (void *)0;
+uintptr_t uart_platform_base(int idx)
+{
+	return (uintptr_t) buf;
+}
+
+void uart_init(int idx)
+{
+}
+
+unsigned char uart_rx_byte(int idx)
+{
+	return 0;
+}
+
+void uart_tx_byte(int idx, unsigned char data)
+{
+
+}
+
+void uart_tx_flush(int idx)
+{
+}
+
+#ifndef __PRE_RAM__
+void uart_fill_lb(void *data)
+{
+	struct lb_serial serial;
+
+	serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
+	serial.baseaddr = 0;
+	serial.baud = 115200;
+	serial.regwidth = 1;
+	lb_add_serial(&serial, data);
+	lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
+}
+#endif