Djam/arm-trusted-firmware
1
0
Fork 0
mirror of https://github.com/ARM-software/arm-trusted-firmware.git synced 2025-04-17 10:04:26 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

plat/arm/sgi: introduce number of chips macro

Browse source 
Introduce macro 'CSS_SGI_CHIP_COUNT' to allow Arm CSS platforms with
multi-chip support to define number of chiplets on the platform. By
default, this flag is set to 1 and does not affect the existing single
chip platforms.

For multi-chip platforms, override the default value of
CSS_SGI_CHIP_COUNT with the number of chiplets supported on the
platform. As an example, the command below sets the number of chiplets
to two on the RD-N1-Edge multi-chip platform:

export CROSS_COMPILE=<path-to-cross-compiler>
make PLAT=rdn1edge CSS_SGI_CHIP_COUNT=2 ARCH=aarch64 all

Change-Id: If364dc36bd34b30cc356f74b3e97633933e6c8ee
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
This commit is contained in:
Vijayenthiran Subramaniam 2019-12-26 17:45:58 +05:30
parent d6b44b10e9
commit 4d37aa76fd
5 changed files with 24 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
docs/plat/arm/arm-build-options.rst
View file

@ -114,6 +114,11 @@ Arm CSS Platform-Specific Build Options
management operations and for SCP RAM Firmware transfer. If this option
is set to 1, then SCMI/SDS drivers will be used. Default is 0.
- ``CSS_SGI_CHIP_COUNT``: Configures the number of chips on a SGI/RD platform
which supports multi-chip operation. If ``CSS_SGI_CHIP_COUNT`` is set to any
valid value greater than 1, the platform code performs required configuration
to support multi-chip operation.
--------------
*Copyright (c) 2019-2020, Arm Limited. All rights reserved.*

5
plat/arm/board/rde1edge/platform.mk
View file

@ -47,4 +47,9 @@ NT_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_nt_fw_config.dtb
# Add the NT_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${NT_FW_CONFIG},--nt-fw-config))
ifneq ($(CSS_SGI_CHIP_COUNT),1)
$(error "Chip count for RDE1Edge should be 1, currently set to \
${CSS_SGI_CHIP_COUNT}.")
endif
override CTX_INCLUDE_AARCH32_REGS := 0

5
plat/arm/board/rdn1edge/platform.mk
View file

@ -47,4 +47,9 @@ NT_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_nt_fw_config.dtb
# Add the NT_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${NT_FW_CONFIG},--nt-fw-config))
ifneq ($(CSS_SGI_CHIP_COUNT),1)
$(error "Chip count for RDN1Edge should be 1, currently set to \
${CSS_SGI_CHIP_COUNT}.")
endif
override CTX_INCLUDE_AARCH32_REGS := 0

5
plat/arm/board/sgi575/platform.mk
View file

@ -46,3 +46,8 @@ NT_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_nt_fw_config.dtb
# Add the NT_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${NT_FW_CONFIG},--nt-fw-config))
ifneq ($(CSS_SGI_CHIP_COUNT),1)
$(error "Chip count for SGI575 should be 1, currently set to \
${CSS_SGI_CHIP_COUNT}.")
endif

4
plat/arm/css/sgi/sgi-common.mk
View file

@ -16,6 +16,8 @@ EL3_EXCEPTION_HANDLING := 0
HANDLE_EA_EL3_FIRST := 0
CSS_SGI_CHIP_COUNT := 1
INTERCONNECT_SOURCES := ${CSS_ENT_BASE}/sgi_interconnect.c
PLAT_INCLUDES += -I${CSS_ENT_BASE}/include
@ -52,6 +54,8 @@ endif
$(eval $(call add_define,SGI_PLAT))
$(eval $(call add_define,CSS_SGI_CHIP_COUNT))
override CSS_LOAD_SCP_IMAGES := 0
override NEED_BL2U := no
override ARM_BL31_IN_DRAM := 1