From 5f8cb140e63f30016c7289d7cb0afec77deeed48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>
Date: Thu, 7 Jul 2016 20:53:28 +0200
Subject: [PATCH] spike-riscv: Look for the CBFS in RAM
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Change-Id: I98927a70adc45d9aca916bd985932b94287921de
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/15285
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
---
 src/arch/riscv/Makefile.inc                   |  3 --
 .../emulation/qemu-riscv/Makefile.inc         |  3 ++
 .../emulation/qemu-riscv}/rom_media.c         |  0
 .../emulation/spike-riscv/Makefile.inc        |  3 ++
 .../emulation/spike-riscv/rom_media.c         | 30 +++++++++++++++++++
 5 files changed, 36 insertions(+), 3 deletions(-)
 rename src/{arch/riscv => mainboard/emulation/qemu-riscv}/rom_media.c (100%)
 create mode 100644 src/mainboard/emulation/spike-riscv/rom_media.c

diff --git a/src/arch/riscv/Makefile.inc b/src/arch/riscv/Makefile.inc
index 243fa5364e..c1c62efb7c 100644
--- a/src/arch/riscv/Makefile.inc
+++ b/src/arch/riscv/Makefile.inc
@@ -33,7 +33,6 @@ bootblock-y += trap_util.S
 bootblock-y += trap_handler.c
 bootblock-y += virtual_memory.c
 bootblock-y += boot.c
-bootblock-y += rom_media.c
 bootblock-y += misc.c
 bootblock-y += \
 	$(top)/src/lib/memchr.c \
@@ -60,7 +59,6 @@ ifeq ($(CONFIG_ARCH_ROMSTAGE_RISCV),y)
 
 romstage-y += boot.c
 romstage-y += stages.c
-romstage-y += rom_media.c
 romstage-y += misc.c
 romstage-y += \
 	$(top)/src/lib/memchr.c \
@@ -90,7 +88,6 @@ ifeq ($(CONFIG_ARCH_RAMSTAGE_RISCV),y)
 ramstage-y =
 ramstage-y += trap_handler.c
 ramstage-y += virtual_memory.c
-ramstage-y += rom_media.c
 ramstage-y += stages.c
 ramstage-y += misc.c
 ramstage-y += boot.c
diff --git a/src/mainboard/emulation/qemu-riscv/Makefile.inc b/src/mainboard/emulation/qemu-riscv/Makefile.inc
index 87bc39ad2e..b8a62f79a6 100644
--- a/src/mainboard/emulation/qemu-riscv/Makefile.inc
+++ b/src/mainboard/emulation/qemu-riscv/Makefile.inc
@@ -15,11 +15,14 @@
 bootblock-y += bootblock.c
 bootblock-y += uart.c
 bootblock-y += qemu_util.c
+bootblock-y += rom_media.c
 romstage-y += romstage.c
 romstage-y += qemu_util.c
 romstage-y += uart.c
+romstage-y += rom_media.c
 ramstage-y += uart.c
 ramstage-y += qemu_util.c
+ramstage-y += rom_media.c
 
 bootblock-y += memlayout.ld
 romstage-y += memlayout.ld
diff --git a/src/arch/riscv/rom_media.c b/src/mainboard/emulation/qemu-riscv/rom_media.c
similarity index 100%
rename from src/arch/riscv/rom_media.c
rename to src/mainboard/emulation/qemu-riscv/rom_media.c
diff --git a/src/mainboard/emulation/spike-riscv/Makefile.inc b/src/mainboard/emulation/spike-riscv/Makefile.inc
index dff4758173..91c136924e 100644
--- a/src/mainboard/emulation/spike-riscv/Makefile.inc
+++ b/src/mainboard/emulation/spike-riscv/Makefile.inc
@@ -15,11 +15,14 @@
 bootblock-y += bootblock.c
 bootblock-y += uart.c
 bootblock-y += spike_util.c
+bootblock-y += rom_media.c
 romstage-y += romstage.c
 romstage-y += uart.c
 romstage-y += spike_util.c
+romstage-y += rom_media.c
 ramstage-y += uart.c
 ramstage-y += spike_util.c
+ramstage-y += rom_media.c
 
 bootblock-y += memlayout.ld
 romstage-y += memlayout.ld
diff --git a/src/mainboard/emulation/spike-riscv/rom_media.c b/src/mainboard/emulation/spike-riscv/rom_media.c
new file mode 100644
index 0000000000..10952a39ee
--- /dev/null
+++ b/src/mainboard/emulation/spike-riscv/rom_media.c
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2016 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ *
+ * 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>
+
+/*
+ * 0x80000000 is this start of RAM. We currently need to load coreboot.rom into
+ * RAM on SPIKE, because SPIKE doesn't support loading custom code into the
+ * boot ROM.
+ */
+static const struct mem_region_device boot_dev =
+	MEM_REGION_DEV_RO_INIT(0x80000000, CONFIG_ROM_SIZE);
+
+const struct region_device *boot_device_ro(void)
+{
+	return &boot_dev.rdev;
+}