From: Abdellatif El Khlifi <[email protected]>
Set the Upstream-Status to Denied because the community suggests a different design
The external system implementation in Corstone-1000 is user-defined.
In the implementation provided by he FPGA board and by the FVP, the
Cortex-A35 (Linux) can not access the memory of the external system (Cortex-M3).
So, Linux can not load the external system firmware and can not communicate
with the external system using Rpmsg over remoteproc subsystem. The reason is Rpmsg
needs vrings memory buffers to be shared between both cores.
The community prefers that the HW is updated with memory sharing before they
consider merging the remoteproc driver.
We reached the agreement that we will split the work in two parts:
Part 1: Writing an SSE-710 reset controller driver
Part 2: Corstone-1000 remoteproc driver
Part 1 is doable and we will be working on it.
Part 2 is waiting for the FPGA upgrade with the memory sharing feature.
For more details [1].
[1]: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Abdellatif El Khlifi <[email protected]>
---
.../0001-remoteproc-Add-Arm-remoteproc-driver.patch | 2 +-
...2-arm64-dts-Add-corstone1000-external-system-device-no.patch | 2 +-
.../0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0001-remoteproc-Add-Arm-remoteproc-driver.patch b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0001-remoteproc-Add-Arm-remoteproc-driver.patch
index 50a6fb2b..c99be74a 100644
--- a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0001-remoteproc-Add-Arm-remoteproc-driver.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0001-remoteproc-Add-Arm-remoteproc-driver.patch
@@ -18,7 +18,7 @@ The driver also supports control of multiple remote processors at the
same time.
Signed-off-by: Abdellatif El Khlifi <[email protected]>
-Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/[email protected]/]
+Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/[email protected]/]
---
MAINTAINERS | 6 +
drivers/remoteproc/Kconfig | 18 ++
diff --git a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-arm64-dts-Add-corstone1000-external-system-device-no.patch b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-arm64-dts-Add-corstone1000-external-system-device-no.patch
index 5c1f3de4..c4dc7ff6 100644
--- a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-arm64-dts-Add-corstone1000-external-system-device-no.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-arm64-dts-Add-corstone1000-external-system-device-no.patch
@@ -6,7 +6,7 @@ Subject: [PATCH 2/6] arm64: dts: Add corstone1000 external system device node
add device tree node for the external system core in Corstone-1000
Signed-off-by: Abdellatif El Khlifi <[email protected]>
-Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/[email protected]/]
+Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/[email protected]/]
---
arch/arm64/boot/dts/arm/corstone1000.dtsi | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch
index 3c7bb0dd..cf0d5f09 100644
--- a/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch
@@ -6,7 +6,7 @@ Subject: [PATCH 3/6] dt-bindings: remoteproc: Add Arm remoteproc
introduce the bindings for Arm remoteproc support.
Signed-off-by: Abdellatif El Khlifi <[email protected]>
-Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/[email protected]/]
+Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/[email protected]/]
---
.../bindings/remoteproc/arm,rproc.yaml | 69 +++++++++++++++++++
MAINTAINERS | 1 +
--
2.25.1
lmpx.com only provides a reader for public news (NNTP) servers. It is not
affiliated with the servers or forums shown here and is not responsible for
the content of articles, which is written by their respective authors.