board: qualcomm: Add support for dragonboard845c

Add support for 96Boards Dragonboard 845C aka Robotics RB3 development
platform. This board complies with 96Boards Open Platform Specifications.

Features:
- Qualcomm Snapdragon SDA845 SoC
- 4GiB RAM
- 64GiB UFS drive

U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/sdm845.rst, board: dragonboard845c.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>

5 files changed, 99 insertions, 0 deletions

diff --git a/board/qualcomm/dragonboard845c/Kconfig b/board/qualcomm/dragonboard845c/Kconfig
new file mode 100644
index 0000000..52fdff2
--- /dev/null
+++ b/board/qualcomm/dragonboard845c/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_DRAGONBOARD845C
+
+config SYS_BOARD
+	default "dragonboard845c"
+
+config SYS_CONFIG_NAME
+	default "dragonboard845c"
+
+config SYS_VENDOR
+	default "qualcomm"
+
+endif
diff --git a/board/qualcomm/dragonboard845c/MAINTAINERS b/board/qualcomm/dragonboard845c/MAINTAINERS
new file mode 100644
index 0000000..e555953
--- /dev/null
+++ b/board/qualcomm/dragonboard845c/MAINTAINERS
@@ -0,0 +1,6 @@
+Qualcomm Robotics RB3 Development Platform (dragonboard845c)
+M:	Sumit Garg <sumit.garg@linaro.org>
+S:	Maintained
+F:	board/qualcomm/dragonboard845c/
+F:	include/configs/dragonboard845c.h
+F:	configs/dragonboard845c_defconfig
diff --git a/board/qualcomm/dragonboard845c/Makefile b/board/qualcomm/dragonboard845c/Makefile
new file mode 100644
index 0000000..0abefda
--- /dev/null
+++ b/board/qualcomm/dragonboard845c/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
+#
+# This empty file prevents make error.
+# Board logic defined in board/qualcomm/common/sdm845.c, no custom logic for dragonboard845c so far.
+#
+
+obj-y += dragonboard845c.o
diff --git a/board/qualcomm/dragonboard845c/db845c.its b/board/qualcomm/dragonboard845c/db845c.its
new file mode 100644
index 0000000..a262134
--- /dev/null
+++ b/board/qualcomm/dragonboard845c/db845c.its
@@ -0,0 +1,63 @@
+/*
+ * U-Boot uImage source file with multiple kernels, ramdisks and FDT blobs
+ */
+
+/dts-v1/;
+
+/ {
+	description = "Various kernels, ramdisks and FDT blobs";
+	#address-cells = <1>;
+
+	images {
+		kernel-1 {
+			description = "5.15.0-qcomlt-arm64";
+			data = /incbin/("./db845c_imgs/Image.gz--5.15-r0-dragonboard-845c-20211218193034-511.bin");
+			type = "kernel";
+			arch = "arm64";
+			os = "linux";
+			compression = "gzip";
+			load = <0x80000000>;
+			entry = <0x80000000>;
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+		ramdisk-1 {
+			description = "initramfs-test-full-image-dragonboard-845c";
+			data = /incbin/("./db845c_imgs/initramfs-test-full-image-dragonboard-845c-20211218193034-511.rootfs.cpio.gz");
+			type = "ramdisk";
+			arch = "arm64";
+			os = "linux";
+			compression = "gzip";
+			load = <00000000>;
+			entry = <00000000>;
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+		fdt-1 {
+			description = "sdm845-db845c-fdt";
+			data = /incbin/("./db845c_imgs/sdm845-db845c--5.15-r0-dragonboard-845c-20211218193034.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+	};
+
+	configurations {
+		default = "config-1";
+
+		config-1 {
+			description = "db845c kernel-5.15.0 configuration";
+			kernel = "kernel-1";
+			ramdisk = "ramdisk-1";
+			fdt = "fdt-1";
+		};
+	};
+};
diff --git a/board/qualcomm/dragonboard845c/dragonboard845c.c b/board/qualcomm/dragonboard845c/dragonboard845c.c
new file mode 100644
index 0000000..c7685de
--- /dev/null
+++ b/board/qualcomm/dragonboard845c/dragonboard845c.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * This empty file prevents make linking error.
+ * No custom logic for dragonboard845c so far.
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
+ */
+
+void noop(void) {}