On Thu, 10 Feb 2022 at 01:12, AKASHI Takahiro takahiro.akashi@linaro.org wrote:
With dm-tag feature, any U-Boot subsystem is allowed to associate arbitrary number of data with a particular udevice. This can been see as expanding "struct udevice" without modifying the definition.
As a first user, UEFI subsystem makes use of tags to associate an efi_disk object with a block device.
Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org
drivers/core/Makefile | 2 +- drivers/core/root.c | 2 + drivers/core/tag.c | 139 ++++++++++++++++++++++++++++++ include/asm-generic/global_data.h | 4 + include/dm/tag.h | 110 +++++++++++++++++++++++ 5 files changed, 256 insertions(+), 1 deletion(-) create mode 100644 drivers/core/tag.c create mode 100644 include/dm/tag.h
Reviewed-by: Simon Glass sjg@chromium.org