leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ti: omap5: Add Kconfig options for secure EMIF reservations

Browse Source 
Adds start address and size config options for setting aside
a portion of the EMIF memory space for usage by security software
(like a secure OS/TEE). There are two sizes, a total size and a
protected size. The region is divided into protected (secure) and
unprotected (public) regions, that are contiguous and start at the
start address given. If the start address is zero, the intention
is that the region will be automatically placed at the end of the
available external DRAM space.

Signed-off-by: Daniel Allred <d-allred@ti.com>
This commit is contained in:
Daniel Allred 2016-09-02 00:40:20 -05:00 committed by Tom Rini
parent 592a749527
commit 4c854b6199
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
arch/arm/cpu/armv7/omap5/Kconfig
View File

@ -57,6 +57,32 @@ endchoice
config SYS_SOC
default "omap5"
config TI_SECURE_EMIF_REGION_START
hex "Reserved EMIF region start address"
depends on TI_SECURE_DEVICE
default 0x0
help
Reserved EMIF region start address. Set to "0" to auto-select
to be at the end of the external memory region.
config TI_SECURE_EMIF_TOTAL_REGION_SIZE
hex "Reserved EMIF region size"
depends on TI_SECURE_DEVICE
default 0x0
help
Total reserved EMIF region size. Default is 0, which means no reserved EMIF
region on secure devices.
config TI_SECURE_EMIF_PROTECTED_REGION_SIZE
hex "Size of protected region within reserved EMIF region"
depends on TI_SECURE_DEVICE
default 0x0
help
This config option is used to specify the size of the portion of the total
reserved EMIF region set aside for secure OS needs that will be protected
using hardware memory firewalls. This value must be smaller than the
TI_SECURE_EMIF_TOTAL_REGION_SIZE value.
source "board/compulab/cm_t54/Kconfig"
source "board/ti/omap5_uevm/Kconfig"
source "board/ti/dra7xx/Kconfig"