Use binman to build an image which includes all the U-Boot phases so that a full VBE boot can take place with just that image.bin file. Attach the image file to mmc2 so it can be loaded.
VBE is used to load images in two phases:
- In VPL, VBE decides which SPL image to load - In SPL, VBE decides which U-Boot image to load
The latter should really be determined by VPL, since it does the full signature verification on the selected configuration. However, we have separate configurations for SPL and U-Boot proper, so for now we keep it simple and have SPL do its own verification. This will need to be tidied up later.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Attach the phase to the image node instead of the configuration node - Add signature checking / hashing to make the image more realistic
arch/sandbox/dts/sandbox.dts | 7 +++ arch/sandbox/dts/sandbox_vpl.dtsi | 84 +++++++++++++++++++++++++++++++ arch/sandbox/dts/test.dts | 6 ++- 3 files changed, 96 insertions(+), 1 deletion(-) create mode 100644 arch/sandbox/dts/sandbox_vpl.dtsi
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts index 21f00fcab5e..1b60914a01c 100644 --- a/arch/sandbox/dts/sandbox.dts +++ b/arch/sandbox/dts/sandbox.dts @@ -21,6 +21,9 @@ spi0 = &spi; };
+ binman: binman { + }; + memory { reg = <0 CONFIG_SYS_SDRAM_SIZE>; }; @@ -103,3 +106,7 @@ #include "sandbox.dtsi" #include "cros-ec-keyboard.dtsi" #include "sandbox_pmic.dtsi" + +#ifdef CONFIG_SANDBOX_VPL +#include "sandbox_vpl.dtsi" +#endif diff --git a/arch/sandbox/dts/sandbox_vpl.dtsi b/arch/sandbox/dts/sandbox_vpl.dtsi new file mode 100644 index 00000000000..1fba537f135 --- /dev/null +++ b/arch/sandbox/dts/sandbox_vpl.dtsi @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Devicetree file for VPL (Verifying Program Loader) + */ + +&binman { + u-boot-tpl-elf { + no-expanded; + }; + u-boot-vpl-elf { + no-expanded; + }; + fw-update { + type = "section"; + + /* + * provide plenty of space for ELF files with debug info so that + * gdb can be used + */ + offset = <0x400000>; + size = <0xdffc00>; + + fit { + fit,external-offset = <0>; + description = "AP firmware"; + images { + spl { + description = "U-Boot SPL"; + type = "firmware"; + phase = "spl"; + arch = "sandbox"; + os = "u-boot"; + compression = "none"; + + hash-1 { + algo = "sha256"; + }; + + u-boot-spl-elf { + }; + }; + u-boot { + description = "U-Boot"; + type = "firmware"; + phase = "u-boot"; + arch = "sandbox"; + os = "u-boot"; + compression = "none"; + + hash-1 { + algo = "sha256"; + }; + + u-boot-elf { + }; + }; + }; + + configurations { + conf-1 { + compatible = "sandbox"; + description = "AP Firmware v1"; + firmware = "spl", "u-boot"; + signature { + algo = "sha1,rsa2048"; + key-name-hint = "dev"; + sign-images = "firmware"; + }; + }; + }; + }; + }; + state { + type = "fill"; + size = <0x200>; + }; + version { + type = "text"; + text = "1.2.3"; + size = <0x200>; + }; + fdtmap { + }; +}; diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index 2574a961cec..a9ef5139020 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -64,7 +64,7 @@ osd0 = "/osd"; };
- binman { + binman: binman { };
config { @@ -1693,3 +1693,7 @@
#include "sandbox_pmic.dtsi" #include "cros-ec-keyboard.dtsi" + +#ifdef CONFIG_SANDBOX_VPL +#include "sandbox_vpl.dtsi" +#endif