diff options
| author | Aswath Govindraju <a-govindraju@ti.com> | 2021-06-16 22:08:21 +0530 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2021-07-15 17:56:04 +0530 |
| commit | 776e25788c744fe91f7e720331a17ad0ff050480 (patch) | |
| tree | 42df698f97c59037dd91eecac4b7417162798de4 /arch | |
| parent | 5242c6a43215110de3a9bf53f324b15190d80eae (diff) | |
arm: dts: k3-am64-main: Reserve OCMRAM for DMSC-lite and secure proxy communication
The final 128KB in SRAM is reserved by default for DMSC-lite code and
secure proxy communication buffer. The memory region used for DMSC-lite
code can be optionally freed up by secure firmware API[1]. However, the
buffer for secure proxy communication is not configurable. This default
hardware configuration is unique for AM64.
Therefore, indicate the area reserved for DMSC-lite code and secure proxy
communication buffer in the oc_sram device tree node.
[1] - http://downloads.ti.com/tisci/esd/latest/6_topic_user_guides/security_handover.html#triggering-security-handover
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210616163821.20457-3-a-govindraju@ti.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/k3-am64-main.dtsi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/dts/k3-am64-main.dtsi b/arch/arm/dts/k3-am64-main.dtsi index f68b969a2e..c5af2ffb8e 100644 --- a/arch/arm/dts/k3-am64-main.dtsi +++ b/arch/arm/dts/k3-am64-main.dtsi @@ -16,6 +16,14 @@ tfa-sram@1c0000 { reg = <0x1c0000 0x20000>; }; + + dmsc-sram@1e0000 { + reg = <0x1e0000 0x1c000>; + }; + + sproxy-sram@1fc000 { + reg = <0x1fc000 0x4000>; + }; }; gic500: interrupt-controller@1800000 { |