From: Huacai Chen <chenhua...@kernel.org>
Implement fw_cfg_arch_key_name(), which returns the name of a
mips-specific key.
Co-developed-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
Signed-off-by: Huacai Chen <chenhua...@kernel.org>
Signed-off-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Message-Id: <20201221110538.3186646-3-chenhua...@kernel.org>
[PMD: Add FW_CFG_MIPS Kconfig selector]
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
hw/mips/fw_cfg.h | 19 +++++++++++++++++++
hw/mips/fw_cfg.c | 35 +++++++++++++++++++++++++++++++++++
hw/mips/Kconfig | 3 +++
hw/mips/meson.build | 1 +
4 files changed, 58 insertions(+)
create mode 100644 hw/mips/fw_cfg.h
create mode 100644 hw/mips/fw_cfg.c
diff --git a/hw/mips/fw_cfg.h b/hw/mips/fw_cfg.h
new file mode 100644
index 00000000000..e317d5b9a3e
--- /dev/null
+++ b/hw/mips/fw_cfg.h
@@ -0,0 +1,19 @@
+/*
+ * QEMU fw_cfg helpers (MIPS specific)
+ *
+ * Copyright (c) 2020 Huacai Chen
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef HW_MIPS_FW_CFG_H
+#define HW_MIPS_FW_CFG_H
+
+#include "hw/boards.h"
+#include "hw/nvram/fw_cfg.h"
+
+/* Data for BIOS to identify machine */
+#define FW_CFG_MACHINE_VERSION (FW_CFG_ARCH_LOCAL + 0)
+#define FW_CFG_CPU_FREQ (FW_CFG_ARCH_LOCAL + 1)
+
+#endif
diff --git a/hw/mips/fw_cfg.c b/hw/mips/fw_cfg.c
new file mode 100644
index 00000000000..67c4a74f4be
--- /dev/null
+++ b/hw/mips/fw_cfg.c
@@ -0,0 +1,35 @@
+/*
+ * QEMU fw_cfg helpers (MIPS specific)
+ *
+ * Copyright (c) 2020 Lemote, Inc.
+ *
+ * Author:
+ * Huacai Chen (che...@lemote.com)
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/mips/fw_cfg.h"
+#include "hw/nvram/fw_cfg.h"
+
+const char *fw_cfg_arch_key_name(uint16_t key)
+{
+ static const struct {
+ uint16_t key;
+ const char *name;
+ } fw_cfg_arch_wellknown_keys[] = {
+ {FW_CFG_MACHINE_VERSION, "machine_version"},
+ {FW_CFG_CPU_FREQ, "cpu_frequency"},
+ };
+
+ for (size_t i = 0; i < ARRAY_SIZE(fw_cfg_arch_wellknown_keys); i++) {
+ if (fw_cfg_arch_wellknown_keys[i].key == key) {
+ return fw_cfg_arch_wellknown_keys[i].name;
+ }
+ }
+ return NULL;
+}
diff --git a/hw/mips/Kconfig b/hw/mips/Kconfig
index 8be70122f4c..64ef42dd3fd 100644
--- a/hw/mips/Kconfig
+++ b/hw/mips/Kconfig
@@ -38,3 +38,6 @@ config MIPS_CPS
config MIPS_BOSTON
bool
+
+config FW_CFG_MIPS
+ bool
diff --git a/hw/mips/meson.build b/hw/mips/meson.build
index 77b4d8f365e..ca5e4d0f943 100644
--- a/hw/mips/meson.build
+++ b/hw/mips/meson.build
@@ -1,5 +1,6 @@
mips_ss = ss.source_set()
mips_ss.add(files('mips_int.c'))
+mips_ss.add(when: 'CONFIG_FW_CFG_MIPS', if_true: files('fw_cfg.c'))
mips_ss.add(when: 'CONFIG_FULOONG', if_true: files('fuloong2e.c'))
mips_ss.add(when: 'CONFIG_JAZZ', if_true: files('jazz.c'))
mips_ss.add(when: 'CONFIG_MALTA', if_true: files('gt64xxx_pci.c', 'malta.c'))
--
2.26.2
