diff mbox series

[U-Boot,38/40] x86: Update device tree for Chromium OS verified boot

Message ID 20190130035935.235565-39-sjg@chromium.org
State Superseded
Delegated to: Bin Meng
Headers show
Series x86: Add support for booting from TPL | expand

Commit Message

Simon Glass Jan. 30, 2019, 3:59 a.m. UTC
The standard image generated by U-Boot on x86 is u-boot.rom. Add a
separate image called image.bin for verified boot. This supports
verification in TPL of which SPL/U-Boot to start, then jumping to the
correct one, with SPL setting up the SDRAM and U-Boot proper providing
the user interface if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 arch/x86/dts/u-boot.dtsi | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

Comments

Bin Meng Feb. 22, 2019, 7:20 a.m. UTC | #1
On Wed, Jan 30, 2019 at 12:01 PM Simon Glass <sjg@chromium.org> wrote:
>
> The standard image generated by U-Boot on x86 is u-boot.rom. Add a
> separate image called image.bin for verified boot. This supports
> verification in TPL of which SPL/U-Boot to start, then jumping to the
> correct one, with SPL setting up the SDRAM and U-Boot proper providing
> the user interface if needed.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>  arch/x86/dts/u-boot.dtsi | 17 +++++++++++++++--
>  1 file changed, 15 insertions(+), 2 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff mbox series

Patch

diff --git a/arch/x86/dts/u-boot.dtsi b/arch/x86/dts/u-boot.dtsi
index 70e9c8f7ac..5943619b86 100644
--- a/arch/x86/dts/u-boot.dtsi
+++ b/arch/x86/dts/u-boot.dtsi
@@ -6,9 +6,23 @@ 
 
 #include <config.h>
 
-#ifdef CONFIG_ROM_SIZE
+#ifdef CONFIG_CHROMEOS
 / {
 	binman {
+		multiple-images;
+		rom: rom {
+		};
+	};
+};
+#else
+/ {
+	rom: binman {
+	};
+};
+#endif
+
+#ifdef CONFIG_ROM_SIZE
+&rom {
 		filename = "u-boot.rom";
 		end-at-4gb;
 		sort-by-offset;
@@ -108,6 +122,5 @@ 
 			offset = <CONFIG_SYS_X86_START16>;
 		};
 #endif
-	};
 };
 #endif