[coreboot-gerrit] Patch set updated for coreboot: emulation/qemu-power8: initial mainboard commit
Ronald G. Minnich (rminnich@gmail.com)
gerrit at coreboot.org
Wed Feb 17 01:05:30 CET 2016
Ronald G. Minnich (rminnich at gmail.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13701
-gerrit
commit 10876062d41b91889ad2aa7390ecd64bff646dfa
Author: Ronald G. Minnich <rminnich at gmail.com>
Date: Fri Feb 12 22:37:48 2016 +0000
emulation/qemu-power8: initial mainboard commit
Doesn't build, but a quick outline we hope.
Change-Id: Ida52cb39464e26af7808cb569d53fa9edc548ecf
Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
---
src/mainboard/emulation/qemu-power8/Kconfig | 53 ++++++++++++++++++++
src/mainboard/emulation/qemu-power8/Kconfig.name | 2 +
src/mainboard/emulation/qemu-power8/Makefile.inc | 23 +++++++++
src/mainboard/emulation/qemu-power8/board_info.txt | 2 +
src/mainboard/emulation/qemu-power8/bootblock.c | 31 ++++++++++++
src/mainboard/emulation/qemu-power8/devicetree.cb | 20 ++++++++
src/mainboard/emulation/qemu-power8/mainboard.c | 36 ++++++++++++++
src/mainboard/emulation/qemu-power8/memlayout.ld | 29 +++++++++++
src/mainboard/emulation/qemu-power8/romstage.c | 23 +++++++++
src/mainboard/emulation/qemu-power8/uart.c | 57 ++++++++++++++++++++++
10 files changed, 276 insertions(+)
diff --git a/src/mainboard/emulation/qemu-power8/Kconfig b/src/mainboard/emulation/qemu-power8/Kconfig
new file mode 100644
index 0000000..307ed6a
--- /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 0000000..34fdddc
--- /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 0000000..e60e0c1
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/Makefile.inc
@@ -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.
+
+bootblock-y += bootblock.c
+bootblock-y += uart.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 0000000..9f57825
--- /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 0000000..3e88620
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/bootblock.c
@@ -0,0 +1,31 @@
+/*
+ * 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 <arch/exception.h>
+#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();
+ exception_init();
+ }
+
+ run_romstage();
+}
diff --git a/src/mainboard/emulation/qemu-power8/devicetree.cb b/src/mainboard/emulation/qemu-power8/devicetree.cb
new file mode 100644
index 0000000..e3ce088
--- /dev/null
+++ b/src/mainboard/emulation/qemu-power8/devicetree.cb
@@ -0,0 +1,20 @@
+##
+## 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 soc/ucb/riscv
+ device cpu_cluster 0 on end
+ chip drivers/generic/generic # I2C0 controller
+ device i2c 6 on end # Fake component for testing
+ 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 0000000..b7a7213
--- /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 0000000..2daad30
--- /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 0000000..b6314ccd
--- /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 0000000..508d679
--- /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
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