diff options
| author | Simon Glass <sjg@chromium.org> | 2018-11-15 18:44:09 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-11-26 08:25:37 -0500 |
| commit | b0edea3c27af3bf7b959fa190a7fe9d7881153c5 (patch) | |
| tree | e48319d91713218a49706b7526f147f2d56c7aee /common/spl/Kconfig | |
| parent | 27028f186d17a25507eb7d5c9b852d8555432679 (diff) | |
| download | u-boot-b0edea3c27af3bf7b959fa190a7fe9d7881153c5.tar.gz | |
spl: Add support for passing handoff info to U-Boot proper
There is some basic informaton that SPL normally wants to pass through to
U-Boot, such as the SDRAM size and bank information.
Mkae use of the new bloblist structure for this. Add a new 'handoff' blob
which is set up in SPL and passed to U-Boot proper. Also adda test for
sandbox_spl that checks that this works correctly and a new 'sb' command
to show the information passed from SPL.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/spl/Kconfig')
| -rw-r--r-- | common/spl/Kconfig | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 32fa5758bf..0ddbffc7d1 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -25,8 +25,28 @@ config SPL_FRAMEWORK supports MMC, NAND and YMODEM and other methods loading of U-Boot and the Linux Kernel. If unsure, say Y. +config HANDOFF + bool "Pass hand-off information from SPL to U-Boot proper" + depends on BLOBLIST + help + It is useful to be able to pass information from SPL to U-Boot + proper to preserve state that is known in SPL and is needed in U-Boot. + Enable this to locate the handoff information in U-Boot proper, early + in boot. It is available in gd->handoff. The state state is set up + in SPL (or TPL if that is being used). + if SPL +config SPL_HANDOFF + bool "Pass hand-off information from SPL to U-Boot proper" + depends on HANDOFF + default y + help + This option enables SPL to write handoff information. This can be + used to pass information like the size of SDRAM from SPL to U-Boot + proper. Also SPL can receive information from TPL in the same place + if that is enabled. + config SPL_LDSCRIPT string "Linker script for the SPL stage" default "arch/$(ARCH)/cpu/u-boot-spl.lds" @@ -867,6 +887,16 @@ config TPL if TPL +config TPL_HANDOFF + bool "Pass hand-off information from TPL to SPL and U-Boot proper" + depends on HANDOFF + default y + help + This option enables TPL to write handoff information. This can be + used to pass information like the size of SDRAM from TPL to U-Boot + proper. The information is also available to SPL if it is useful + there. + config TPL_BOARD_INIT bool "Call board-specific initialization in TPL" help |