linux-kernel - [PATCH v2 0/6] Add a PRU remoteproc driver

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Message-Id: <20201119140850.12268-1-grzegorz.jaszczyk@linaro.org>
Date:   Thu, 19 Nov 2020 15:08:44 +0100
From:   Grzegorz Jaszczyk <grzegorz.jaszczyk@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org,
        mathieu.poirier@...aro.org, s-anna@...com
Cc:     grzegorz.jaszczyk@...aro.org, linux-remoteproc@...r.kernel.org,
        robh+dt@...nel.org, lee.jones@...aro.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        praneeth@...com, rogerq@...com
Subject: [PATCH v2 0/6] Add a PRU remoteproc driver

Hi All,

The Programmable Real-Time Unit and Industrial Communication Subsystem
(PRU-ICSS or simply PRUSS) on various TI SoCs consists of dual 32-bit
RISC cores (Programmable Real-Time Units, or PRUs) for program execution.

The K3 AM65x amd J721E SoCs have the next generation of the PRU-ICSS IP,
commonly called ICSSG. The ICSSG IP on AM65x SoCs has two PRU cores,
two auxiliary custom PRU cores called Real Time Units (RTUs). The K3
AM65x SR2.0 and J721E SoCs have a revised version of the ICSSG IP, and
include two additional custom auxiliary PRU cores called Transmit PRUs
(Tx_PRUs).

This series contains the PRUSS remoteproc driver together with relevant
dt-binding. This is the 3rd foundation component for PRUSS subsystem, the
previous two were already merged and can be found under:
1) drivers/soc/ti/pruss.c
   Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
2) drivers/irqchip/irq-pruss-intc.c
   Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml

The following is a v2 version of the series. Please see the individual patches
for exact changes in each patch, following are the main changes from v1:
- Patch #1: fix two yamllint warnings.
- Patch #2: address Suman comments: minor style improvements and fix for
	    optional resource table handling (moved from patch #3).
- Patch #3: address Suman comment: minor style, comments and trace improvements
	    (no functional changes).
- Patch #4: No changes.
- Patch #5: Update documentation of pru_rproc_memcpy() function and is_k3 flag.
- Patch #6: No changes.

Best regards,
Grzegorz

Grzegorz Jaszczyk (1):
  remoteproc/pru: Add support for PRU specific interrupt configuration

Suman Anna (5):
  dt-bindings: remoteproc: Add binding doc for PRU cores in the PRU-ICSS
  remoteproc/pru: Add a PRU remoteproc driver
  remoteproc/pru: Add pru-specific debugfs support
  remoteproc/pru: Add support for various PRU cores on K3 AM65x SoCs
  remoteproc/pru: Add support for various PRU cores on K3 J721E SoCs

 .../bindings/remoteproc/ti,pru-rproc.yaml     | 214 +++++
 drivers/remoteproc/Kconfig                    |  12 +
 drivers/remoteproc/Makefile                   |   1 +
 drivers/remoteproc/pru_rproc.c                | 877 ++++++++++++++++++
 drivers/remoteproc/pru_rproc.h                |  46 +
 5 files changed, 1150 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
 create mode 100644 drivers/remoteproc/pru_rproc.c
 create mode 100644 drivers/remoteproc/pru_rproc.h

-- 
2.29.0