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arm-bsp/linux-yocto: corstone1000: Update the Upstream-Status of the remoteproc patches

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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/20241009094635.GA14639@e130802.arm.com/

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Abdellatif El Khlifi
2024-12-12 10:12:38 +00:00
committed by Jon Mason
parent 22de236233
commit 258277bab5
3 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0001-remoteproc-Add-Arm-remoteproc-driver.patch
View File

@@ -18,7 +18,7 @@ The driver also supports control of multiple remote processors at the
same time.
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/20240301164227.339208-1-abdellatif.elkhlifi@arm.com/]
Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/20241009094635.GA14639@e130802.arm.com/]
---
MAINTAINERS | 6 +
drivers/remoteproc/Kconfig | 18 ++

2
meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-arm64-dts-Add-corstone1000-external-system-device-no.patch
View File

@@ -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 <abdellatif.elkhlifi@arm.com>
Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/20240301164227.339208-1-abdellatif.elkhlifi@arm.com/]
Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/20241009094635.GA14639@e130802.arm.com/]
---
arch/arm64/boot/dts/arm/corstone1000.dtsi | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

2
meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0003-dt-bindings-remoteproc-Add-Arm-remoteproc.patch
View File

@@ -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 <abdellatif.elkhlifi@arm.com>
Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/20240301164227.339208-1-abdellatif.elkhlifi@arm.com/]
Upstream-Status: Denied [Agreement reached: https://lore.kernel.org/all/20241009094635.GA14639@e130802.arm.com/]
---
.../bindings/remoteproc/arm,rproc.yaml | 69 +++++++++++++++++++
MAINTAINERS | 1 +