[v6,057/102] x86: Add an option to control the position of SPL
diff mbox series

Message ID 20191206213936.v6.57.I673905c51a044952543c14f75f421f5172c34de7@changeid
State Accepted
Delegated to: Bin Meng
Headers show
Series
  • x86: Add initial support for apollolake
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Commit Message

Simon Glass Dec. 7, 2019, 4:42 a.m. UTC
For Apollo Lake SPL is run from CAR (cache-as-RAM) which is in a different
location from where SPL must be placed in ROM. In other words, although
SPL runs before SDRAM is set up, it is not execute-in-place (XIP).

Add a Kconfig option for the ROM position.

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

Changes in v6: None
Changes in v5: None
Changes in v4:
- apollolake -> Apollo Lake

Changes in v3:
- Add SPL condition to the option

Changes in v2: None

 arch/x86/Kconfig         | 5 +++++
 arch/x86/dts/u-boot.dtsi | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)

Comments

Bin Meng Dec. 8, 2019, 3:31 a.m. UTC | #1
On Sat, Dec 7, 2019 at 12:49 PM Simon Glass <sjg@chromium.org> wrote:
>
> For Apollo Lake SPL is run from CAR (cache-as-RAM) which is in a different
> location from where SPL must be placed in ROM. In other words, although
> SPL runs before SDRAM is set up, it is not execute-in-place (XIP).
>
> Add a Kconfig option for the ROM position.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v6: None
> Changes in v5: None
> Changes in v4:
> - apollolake -> Apollo Lake
>
> Changes in v3:
> - Add SPL condition to the option
>
> Changes in v2: None
>
>  arch/x86/Kconfig         | 5 +++++
>  arch/x86/dts/u-boot.dtsi | 4 ++--
>  2 files changed, 7 insertions(+), 2 deletions(-)
>

applied to u-boot-x86/next, thanks!

Patch
diff mbox series

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9d7ff3c07a..1d08cb24fb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -904,4 +904,9 @@  config X86_OFFSET_U_BOOT
 	depends on HAVE_SYS_TEXT_BASE
 	default SYS_TEXT_BASE
 
+config X86_OFFSET_SPL
+	hex "Offset of SPL in ROM image"
+	depends on SPL && X86
+	default SPL_TEXT_BASE
+
 endmenu
diff --git a/arch/x86/dts/u-boot.dtsi b/arch/x86/dts/u-boot.dtsi
index d84c64880a..fad3e7c951 100644
--- a/arch/x86/dts/u-boot.dtsi
+++ b/arch/x86/dts/u-boot.dtsi
@@ -45,7 +45,7 @@ 
 	};
 #endif
 	u-boot-spl {
-		offset = <CONFIG_SPL_TEXT_BASE>;
+		offset = <CONFIG_X86_OFFSET_SPL>;
 	};
 	u-boot-spl-dtb {
 	};
@@ -54,7 +54,7 @@ 
 	};
 #elif defined(CONFIG_SPL)
 	u-boot-spl-with-ucode-ptr {
-		offset = <CONFIG_SPL_TEXT_BASE>;
+		offset = <CONFIG_X86_OFFSET_SPL>;
 	};
 	u-boot-dtb-with-ucode2 {
 		type = "u-boot-dtb-with-ucode";