From 6ce0dd2e7c4bc7a34852d8f86d9ef0ec4d69cb3d Mon Sep 17 00:00:00 2001
From: visa <visa@openbsd.org>
Date: Mon, 24 Apr 2017 13:54:28 +0000
Subject: [PATCH] Add an fdt blob for octeon systems whose firmware does not
 provide a device-tree. It will be needed later when more device drivers are
 attached using fdt.

OK kettenis@
---
 sys/arch/octeon/conf/files.octeon   |   3 +-
 sys/arch/octeon/octeon/cn3xxx.dts   |  61 +++++++++
 sys/arch/octeon/octeon/cn3xxx_dts.S | 201 ++++++++++++++++++++++++++++
 sys/arch/octeon/octeon/machdep.c    |   7 +-
 4 files changed, 269 insertions(+), 3 deletions(-)
 create mode 100644 sys/arch/octeon/octeon/cn3xxx.dts
 create mode 100644 sys/arch/octeon/octeon/cn3xxx_dts.S

diff --git a/sys/arch/octeon/conf/files.octeon b/sys/arch/octeon/conf/files.octeon
index 38343492099..d940fc4e71d 100644
--- a/sys/arch/octeon/conf/files.octeon
+++ b/sys/arch/octeon/conf/files.octeon
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.octeon,v 1.33 2016/12/21 13:59:57 visa Exp $
+#	$OpenBSD: files.octeon,v 1.34 2017/04/24 13:54:28 visa Exp $
 
 # Standard stanzas config(8) can't run without
 maxpartitions 16
@@ -19,6 +19,7 @@ file	arch/octeon/octeon/bus_dma.c
 file	arch/octeon/octeon/conf.c
 file	arch/octeon/octeon/disksubr.c		disk
 file	arch/octeon/octeon/machdep.c
+file	arch/octeon/octeon/cn3xxx_dts.S
 
 include "dev/ata/files.ata"
 include "dev/atapiscsi/files.atapiscsi"
diff --git a/sys/arch/octeon/octeon/cn3xxx.dts b/sys/arch/octeon/octeon/cn3xxx.dts
new file mode 100644
index 00000000000..0bd2076770b
--- /dev/null
+++ b/sys/arch/octeon/octeon/cn3xxx.dts
@@ -0,0 +1,61 @@
+/*	$OpenBSD: cn3xxx.dts,v 1.1 2017/04/24 13:54:28 visa Exp $	*/
+
+/*
+ * Copyright (c) 2017 Visa Hankala
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Dummy device-tree for CN3xxx/CN5xxx based systems where the firmware
+ * does not provide a native one.
+ */
+
+/*
+ * The file is compiled into an asm file using the Linux device tree compiler.
+ *
+ * $ dtc -V 17 -O asm -o cn3xxx_dts.S cn3xxx.dts
+ *
+ * To avoid invalid 8-bit relocations in the object file, certain sequences
+ * of .byte values have to be folded manually into .word values
+ * in the generated header.
+ */
+
+/dts-v1/;
+
+/ {
+	model = "CN3xxx/CN5xxx";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	soc@0 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		ciu@1070000000000 {
+			compatible = "cavium,octeon-3860-ciu";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			reg = <0x10700 0x00000000 0x0 0x7000>;
+		};
+
+		mdio@1180000001800 {
+			compatible = "cavium,octeon-3860-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x11800 0x00001800 0x0 0x40>;
+		};
+	};
+};
diff --git a/sys/arch/octeon/octeon/cn3xxx_dts.S b/sys/arch/octeon/octeon/cn3xxx_dts.S
new file mode 100644
index 00000000000..aec0a3ca1f7
--- /dev/null
+++ b/sys/arch/octeon/octeon/cn3xxx_dts.S
@@ -0,0 +1,201 @@
+/* autogenerated by dtc, do not edit */
+
+	.globl	dt_blob_start
+dt_blob_start:
+_dt_blob_start:
+	.globl	dt_header
+dt_header:
+_dt_header:
+	/* magic */
+	.byte 0xd0; .byte 0x0d; .byte 0xfe; .byte 0xed
+	/* totalsize */
+	.word	_dt_blob_abs_end - _dt_blob_start
+	/* off_dt_struct */
+	.word	_dt_struct_start - _dt_blob_start
+	/* off_dt_strings */
+	.word	_dt_strings_start - _dt_blob_start
+	/* off_mem_rsvmap */
+	.word	_dt_reserve_map - _dt_blob_start
+	/* version */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x11
+	/* last_comp_version */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x10
+	/* boot_cpuid_phys */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	/* size_dt_strings */
+	.word	_dt_strings_end - _dt_strings_start
+	/* size_dt_struct */
+	.word	_dt_struct_end - _dt_struct_start
+	.balign	8, 0
+	.globl	dt_reserve_map
+dt_reserve_map:
+_dt_reserve_map:
+/* Memory reserve map from source file */
+	.long	0, 0
+	.long	0, 0
+	.globl	dt_struct_start
+dt_struct_start:
+_dt_struct_start:
+	/* FDT_BEGIN_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x01
+	.string	""
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x0e
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x43; .byte 0x4e; .byte 0x33; .byte 0x78
+	.byte 0x78; .byte 0x78; .byte 0x2f; .byte 0x43
+	.byte 0x4e; .byte 0x35; .byte 0x78; .byte 0x78
+	.byte	0x78
+	.byte	0x0
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x06
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x15
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	.balign	4, 0
+	/* FDT_BEGIN_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x01
+	.string	"soc@0"
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x0b
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x21
+	.byte 0x73; .byte 0x69; .byte 0x6d; .byte 0x70
+	.byte 0x6c; .byte 0x65; .byte 0x2d; .byte 0x62
+	.byte	0x75
+	.byte	0x73
+	.byte	0x0
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x06
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x15
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x2c
+	.balign	4, 0
+	/* FDT_BEGIN_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x01
+	.string	"ciu@1070000000000"
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x17
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x21
+	.byte 0x63; .byte 0x61; .byte 0x76; .byte 0x69
+	.byte 0x75; .byte 0x6d; .byte 0x2c; .byte 0x6f
+	.byte 0x63; .byte 0x74; .byte 0x65; .byte 0x6f
+	.byte 0x6e; .byte 0x2d; .byte 0x33; .byte 0x38
+	.byte 0x36; .byte 0x30; .byte 0x2d; .byte 0x63
+	.byte	0x69
+	.byte	0x75
+	.byte	0x0
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x33
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x48
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x10
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x59
+	.byte 0x00; .byte 0x01; .byte 0x07; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x70; .byte 0x00
+	.balign	4, 0
+	/* FDT_END_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	/* FDT_BEGIN_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x01
+	.string	"mdio@1180000001800"
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x18
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x21
+	.byte 0x63; .byte 0x61; .byte 0x76; .byte 0x69
+	.byte 0x75; .byte 0x6d; .byte 0x2c; .byte 0x6f
+	.byte 0x63; .byte 0x74; .byte 0x65; .byte 0x6f
+	.byte 0x6e; .byte 0x2d; .byte 0x33; .byte 0x38
+	.byte 0x36; .byte 0x30; .byte 0x2d; .byte 0x6d
+	.byte 0x64; .byte 0x69; .byte 0x6f; .byte 0x00
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x06
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x01
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x04
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x15
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.balign	4, 0
+	/* FDT_PROP */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x03
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x10
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x59
+	.byte 0x00; .byte 0x01; .byte 0x18; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x18; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x00
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x40
+	.balign	4, 0
+	/* FDT_END_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	/* FDT_END_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	/* FDT_END_NODE */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x02
+	/* FDT_END */
+	.byte 0x00; .byte 0x00; .byte 0x00; .byte 0x09
+	.globl	dt_struct_end
+dt_struct_end:
+_dt_struct_end:
+	.globl	dt_strings_start
+dt_strings_start:
+_dt_strings_start:
+	.string "model"
+	.string "#address-cells"
+	.string "#size-cells"
+	.string "compatible"
+	.string "ranges"
+	.string "interrupt-controller"
+	.string "#interrupt-cells"
+	.string "reg"
+	.globl	dt_strings_end
+dt_strings_end:
+_dt_strings_end:
+	.globl	dt_blob_end
+dt_blob_end:
+_dt_blob_end:
+	.globl	dt_blob_abs_end
+dt_blob_abs_end:
+_dt_blob_abs_end:
diff --git a/sys/arch/octeon/octeon/machdep.c b/sys/arch/octeon/octeon/machdep.c
index 5d5c099a034..925a56df0b8 100644
--- a/sys/arch/octeon/octeon/machdep.c
+++ b/sys/arch/octeon/octeon/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.86 2017/04/20 15:42:26 visa Exp $ */
+/*	$OpenBSD: machdep.c,v 1.87 2017/04/24 13:54:28 visa Exp $ */
 
 /*
  * Copyright (c) 2009, 2010 Miodrag Vallat.
@@ -96,6 +96,8 @@ struct uvm_constraint_range *uvm_md_constraints[] = { NULL };
 vm_map_t exec_map;
 vm_map_t phys_map;
 
+extern uint8_t dt_blob_start[];
+
 struct boot_desc *octeon_boot_desc;
 struct boot_info *octeon_boot_info;
 
@@ -396,7 +398,8 @@ mips_init(__register_t a0, __register_t a1, __register_t a2 __unused,
 			memcpy(octeon_fdt, fdt, fdt_size);
 			fdt_init(octeon_fdt);
 		}
-	}
+	} else
+		fdt_init(dt_blob_start);
 
 	/*
 	 * Get a console, very early but after initial mapping setup.
-- 
2.20.1