CSS: Reorganize the SCP Image transfer functionality
The SCP_BL2 is transferred to SCP during BL2 image load and authenticate
sequence. The Boot-Over-MHU (BOM) protocol is used as transport for this. After
the SCP boots using the transferred image, the AP CPU waits till the `READY`
message is received from SCP. This patch separates the API for transport of
image from the wait for `READY` message and also moves the related files to
the `css/drivers` folder. The previous API `scp_bootloader_transfer` is
renamed to `css_scp_boot_image_xfer` to reflect the css naming convention.
This reorganisation also allows easier switch to a different transport
(eg: Shared Data Structure based transfer) in future
Change-Id: I8a96f9c4616ffde6dbfdf7c18f6f6f8bfa40bbf0
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
diff --git a/plat/arm/css/common/css_common.mk b/plat/arm/css/common/css_common.mk
index c2ae921..9381e4c 100644
--- a/plat/arm/css/common/css_common.mk
+++ b/plat/arm/css/common/css_common.mk
@@ -56,8 +56,8 @@
$(eval $(call FWU_FIP_ADD_IMG,SCP_BL2U,--scp-fwu-cfg))
endif
- BL2U_SOURCES += plat/arm/css/common/css_scp_bootloader.c
- BL2_SOURCES += plat/arm/css/common/css_scp_bootloader.c
+ BL2U_SOURCES += plat/arm/css/drivers/scp/css_bom_bootloader.c
+ BL2_SOURCES += plat/arm/css/drivers/scp/css_bom_bootloader.c
endif
# Enable option to detect whether the SCP ROM firmware in use predates version