binman: Add support for building x86 ROMs

The structure of x86 ROMs is pretty complex. There are various binary blobs
to place in the image. Microcode requires special handling so that it is
available to very early code and can be used without any memory whatsoever.

Add support for the various entry types that are currently needed, along
with some tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

13 files changed, 203 insertions, 0 deletions

diff --git a/tools/binman/test/27_pack_4gb_no_size.dts b/tools/binman/test/27_pack_4gb_no_size.dts
new file mode 100644
index 0000000..e0b6519
--- /dev/null
+++ b/tools/binman/test/27_pack_4gb_no_size.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		u-boot {
+			pos = <0xfffffff0>;
+		};
+
+		u-boot-spl {
+			pos = <0xfffffff7>;
+		};
+	};
+};
diff --git a/tools/binman/test/28_pack_4gb_outside.dts b/tools/binman/test/28_pack_4gb_outside.dts
new file mode 100644
index 0000000..ff468c7
--- /dev/null
+++ b/tools/binman/test/28_pack_4gb_outside.dts
@@ -0,0 +1,19 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <16>;
+		u-boot {
+			pos = <0>;
+		};
+
+		u-boot-spl {
+			pos = <0xfffffff7>;
+		};
+	};
+};
diff --git a/tools/binman/test/29_x86-rom.dts b/tools/binman/test/29_x86-rom.dts
new file mode 100644
index 0000000..075ede3
--- /dev/null
+++ b/tools/binman/test/29_x86-rom.dts
@@ -0,0 +1,19 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <16>;
+		u-boot {
+			pos = <0xfffffff0>;
+		};
+
+		u-boot-spl {
+			pos = <0xfffffff7>;
+		};
+	};
+};
diff --git a/tools/binman/test/30_x86-rom-me-no-desc.dts b/tools/binman/test/30_x86-rom-me-no-desc.dts
new file mode 100644
index 0000000..4578f66
--- /dev/null
+++ b/tools/binman/test/30_x86-rom-me-no-desc.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <16>;
+		intel-me {
+			pos-unset;
+		};
+	};
+};
diff --git a/tools/binman/test/31_x86-rom-me.dts b/tools/binman/test/31_x86-rom-me.dts
new file mode 100644
index 0000000..b484ab3
--- /dev/null
+++ b/tools/binman/test/31_x86-rom-me.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <0x800000>;
+		intel-descriptor {
+		};
+
+		intel-me {
+			pos-unset;
+		};
+	};
+};
diff --git a/tools/binman/test/32_intel-vga.dts b/tools/binman/test/32_intel-vga.dts
new file mode 100644
index 0000000..1790833
--- /dev/null
+++ b/tools/binman/test/32_intel-vga.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		size = <16>;
+
+		intel-vga {
+		};
+	};
+};
diff --git a/tools/binman/test/33_x86-start16.dts b/tools/binman/test/33_x86-start16.dts
new file mode 100644
index 0000000..2e279de
--- /dev/null
+++ b/tools/binman/test/33_x86-start16.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		size = <16>;
+
+		x86-start16 {
+		};
+	};
+};
diff --git a/tools/binman/test/34_x86_ucode.dts b/tools/binman/test/34_x86_ucode.dts
new file mode 100644
index 0000000..64a6c2c
--- /dev/null
+++ b/tools/binman/test/34_x86_ucode.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <0x200>;
+		u-boot-with-ucode-ptr {
+		};
+
+		u-boot-dtb-with-ucode {
+		};
+
+		u-boot-ucode {
+		};
+	};
+
+	microcode {
+		update@0 {
+			data = <0x12345678 0x12345679>;
+		};
+		update@1 {
+			data = <0xabcd0000 0x78235609>;
+		};
+	};
+};
diff --git a/tools/binman/test/35_x86_single_ucode.dts b/tools/binman/test/35_x86_single_ucode.dts
new file mode 100644
index 0000000..973e97f
--- /dev/null
+++ b/tools/binman/test/35_x86_single_ucode.dts
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		sort-by-pos;
+		end-at-4gb;
+		size = <0x200>;
+		u-boot-with-ucode-ptr {
+		};
+
+		u-boot-dtb-with-ucode {
+		};
+
+		u-boot-ucode {
+		};
+	};
+
+	microcode {
+		update@0 {
+			data = <0x12345678 0x12345679>;
+		};
+	};
+};
diff --git a/tools/binman/test/descriptor.bin b/tools/binman/test/descriptor.bin
new file mode 100644
index 0000000..3d54943
--- /dev/null
+++ b/tools/binman/test/descriptor.bin
diff --git a/tools/binman/test/u_boot_ucode_ptr b/tools/binman/test/u_boot_ucode_ptr
new file mode 100755
index 0000000..dbfb184
--- /dev/null
+++ b/tools/binman/test/u_boot_ucode_ptr
diff --git a/tools/binman/test/u_boot_ucode_ptr.c b/tools/binman/test/u_boot_ucode_ptr.c
new file mode 100644
index 0000000..434c9f4
--- /dev/null
+++ b/tools/binman/test/u_boot_ucode_ptr.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ *
+ * Simple program to create a _dt_ucode_base_size symbol which can be read
+ * by 'nm'. This is used by binman tests.
+ *
+ * Build with:
+ * cc -march=i386 -m32 -o u_boot_ucode_ptr -T u_boot_ucode_ptr.lds -nostdlib \
+	u_boot_ucode_ptr.c
+ */
+
+static unsigned long _dt_ucode_base_size[2]
+		__attribute__((section(".ucode"))) = {1, 2};
diff --git a/tools/binman/test/u_boot_ucode_ptr.lds b/tools/binman/test/u_boot_ucode_ptr.lds
new file mode 100644
index 0000000..167debf
--- /dev/null
+++ b/tools/binman/test/u_boot_ucode_ptr.lds
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+
+SECTIONS
+{
+	. = 0xfffffdf0;
+	_start = .;
+	.ucode : {
+		*(.ucode)
+	}
+}