arch/ppc64/rom_media.c: move to mainboard/emulation/qemu-power*

CBFS location in memory is different than on the real hardware.

Change-Id: Icd806a57f449042c883b624056c05c1ff7e4c17e
Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67061
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Kopeć <michal.kopec@3mdeb.com>

src/arch/ppc64/Makefile.inc

@@ -12,7 +12,6 @@ ifeq ($(CONFIG_ARCH_BOOTBLOCK_PPC64),y)
 bootblock-y = bootblock_crt0.S
 bootblock-y += arch_timer.c
 bootblock-y += boot.c
-bootblock-y += rom_media.c
 bootblock-y += \
 	$(top)/src/lib/memchr.c \
 	$(top)/src/lib/memcmp.c \
@@ -38,7 +37,6 @@ ifeq ($(CONFIG_ARCH_ROMSTAGE_PPC64),y)
 romstage-y += arch_timer.c
 romstage-y += boot.c
 romstage-y += stages.c
-romstage-y += rom_media.c
 romstage-y += \
 	$(top)/src/lib/memchr.c \
 	$(top)/src/lib/memcmp.c \
@@ -64,7 +62,6 @@ endif
 ################################################################################
 ifeq ($(CONFIG_ARCH_RAMSTAGE_PPC64),y)
 
-ramstage-y += rom_media.c
 ramstage-y += stages.c
 ramstage-y += arch_timer.c
 ramstage-y += boot.c

src/mainboard/emulation/qemu-power8/Makefile.inc

@@ -2,8 +2,11 @@
 
 bootblock-y += bootblock.c
 bootblock-y += uart.c
+bootblock-y += rom_media.c
 romstage-y += cbmem.c
 romstage-y += romstage.c
 ramstage-y += timer.c
 romstage-y += uart.c
+romstage-y += rom_media.c
 ramstage-y += uart.c
+ramstage-y += rom_media.c

src/mainboard/emulation/qemu-power9/Makefile.inc

@@ -1,6 +1,10 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
+bootblock-y += rom_media.c
+
 romstage-y += cbmem.c
 romstage-y += romstage.c
+romstage-y += rom_media.c
 
 ramstage-y += ramstage.c
+ramstage-y += rom_media.c

src/mainboard/emulation/qemu-power9/rom_media.c

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/io.h>
+#include <boot_device.h>
+
+static const struct mem_region_device boot_dev =
+	MEM_REGION_DEV_RO_INIT(FLASH_BASE_ADDR, CONFIG_ROM_SIZE);
+
+const struct region_device *boot_device_ro(void)
+{
+	return &boot_dev.rdev;
+}