[RFC PATCH 1/3] platform: sifive: Add initial support for SiFive development platform

[Yu-Chien Peter Lin]

Add initial platform support for SiFive development platforms
with the "sifive-dev" compatible string.

Reviewed-by: Greentime Hu <greentime.hu at sifive.com>
Reviewed-by: Zong Li <zong.li at sifive.com>
Signed-off-by: Yu-Chien Peter Lin <peter.lin at sifive.com>
---
 platform/generic/Kconfig                      |  4 ++++
 platform/generic/configs/defconfig            |  1 +
 platform/generic/sifive/objects.mk            |  3 +++
 platform/generic/sifive/sifive_dev_platform.c | 23 +++++++++++++++++++
 4 files changed, 31 insertions(+)
 create mode 100644 platform/generic/sifive/sifive_dev_platform.c

diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig
index 0c11fbd2c..eaa972b73 100644
--- a/platform/generic/Kconfig
+++ b/platform/generic/Kconfig
@@ -66,6 +66,10 @@ config PLATFORM_RENESAS_RZFIVE
 	select ANDES_PMU
 	default n
 
+config PLATFORM_SIFIVE_DEV
+	bool "SiFive development platform support"
+	default n
+
 config PLATFORM_SIFIVE_FU540
 	bool "SiFive FU540 support"
 	default n
diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig
index 19a73a247..347ca56d9 100644
--- a/platform/generic/configs/defconfig
+++ b/platform/generic/configs/defconfig
@@ -5,6 +5,7 @@ CONFIG_PLATFORM_ESWIN_EIC770X=y
 CONFIG_PLATFORM_OPENHWGROUP_ARIANE=y
 CONFIG_PLATFORM_OPENHWGROUP_OPENPITON=y
 CONFIG_PLATFORM_RENESAS_RZFIVE=y
+CONFIG_PLATFORM_SIFIVE_DEV=y
 CONFIG_PLATFORM_SIFIVE_FU540=y
 CONFIG_PLATFORM_SIFIVE_FU740=y
 CONFIG_PLATFORM_SOPHGO_SG2042=y
diff --git a/platform/generic/sifive/objects.mk b/platform/generic/sifive/objects.mk
index d75e444ab..d32e1273d 100644
--- a/platform/generic/sifive/objects.mk
+++ b/platform/generic/sifive/objects.mk
@@ -2,6 +2,9 @@
 # SPDX-License-Identifier: BSD-2-Clause
 #
 
+carray-platform_override_modules-$(CONFIG_PLATFORM_SIFIVE_DEV) += sifive_dev_platform
+platform-objs-$(CONFIG_PLATFORM_SIFIVE_DEV) += sifive/sifive_dev_platform.o
+
 carray-platform_override_modules-$(CONFIG_PLATFORM_SIFIVE_FU540) += sifive_fu540
 platform-objs-$(CONFIG_PLATFORM_SIFIVE_FU540) += sifive/fu540.o
 
diff --git a/platform/generic/sifive/sifive_dev_platform.c b/platform/generic/sifive/sifive_dev_platform.c
new file mode 100644
index 000000000..facc044f1
--- /dev/null
+++ b/platform/generic/sifive/sifive_dev_platform.c
@@ -0,0 +1,23 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2026 SiFive Inc.
+ */
+
+#include <platform_override.h>
+
+static int sifive_platform_init(const void *fdt, int nodeoff,
+				const struct fdt_match *match)
+{
+	return 0;
+}
+
+static const struct fdt_match sifive_dev_platform_match[] = {
+	{ .compatible = "sifive-dev" },
+	{ },
+};
+
+const struct fdt_driver sifive_dev_platform = {
+	.match_table = sifive_dev_platform_match,
+	.init = sifive_platform_init,
+};
-- 
2.43.7