Hi Everyone, This series includes three separate patch series which are supposed to be applied to three different trees, remoteproc, soc, and net respectively These are the three series in sequence:- 1. Introduce PRU remoteproc consumer API (5 Patches) 2. Introduce PRU platform consumer API (6 Patches) 3. Introduce ICSSG based ethernet Driver (2 Patches) I am sending all three series together as RFC because 2nd depends on 1st and 3rd depends on both 1st and 2nd. Once I have received the comments on this, I will send these series separately to their respective trees. The 1st series is the v3 of [1], which had some checkpatch errors, that have been corrected in v3(this). The 2nd series is the v2 of [2], It has no functional changes. [1] https://patchwork.kernel.org/project/linux-remoteproc/cover/20201216165239.2744-1-grzegorz.jaszczyk@xxxxxxxxxx/ [2] https://patchwork.kernel.org/project/linux-remoteproc/cover/20201211184811.6490-1-grzegorz.jaszczyk@xxxxxxxxxx/ Now, I am adding the cover letters and details about the individual series 1. Introduce PRU remoteproc consumer API 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. There are 3 foundation components for PRUSS subsystem: the PRUSS platform driver, the PRUSS INTC driver and the PRUSS remoteproc driver. All 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 3) drivers/remoteproc/pru_rproc.c Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml The programmable nature of the PRUs provide flexibility to implement custom peripheral interfaces, fast real-time responses, or specialized data handling. Example of a PRU consumer drivers will be: - Software UART over PRUSS - PRU-ICSS Ethernet EMAC In order to make usage of common PRU resources and allow the consumer drivers to configure the PRU hardware for specific usage the PRU API is introduced. Roger Quadros (1): remoteproc: pru: Add pru_rproc_set_ctable() function Suman Anna (2): dt-bindings: remoteproc: Add PRU consumer bindings remoteproc: pru: Make sysfs entries read-only for PRU client driven boots Tero Kristo (2): remoteproc: pru: Add APIs to get and put the PRU cores remoteproc: pru: Configure firmware based on client setup 2. Introduce PRU platform consumer API 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. There are 3 foundation components for TI PRUSS subsystem: the PRUSS platform driver, the PRUSS INTC driver and the PRUSS remoteproc driver. The programmable nature of the PRUs provide flexibility to implement custom peripheral interfaces, fast real-time responses, or specialized data handling. Example of a PRU consumer drivers will be: - Software UART over PRUSS - PRU-ICSS Ethernet EMAC In order to make usage of common PRU resources and allow the consumer drivers to configure the PRU hardware for specific usage the PRU API is introduced. Andrew F. Davis (1): soc: ti: pruss: Add pruss_{request,release}_mem_region() API Suman Anna (3): soc: ti: pruss: Add pruss_cfg_read()/update() API soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR soc: ti: pruss: Add helper function to enable OCP master ports Tero Kristo (2): soc: ti: pruss: Add pruss_get()/put() API soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX 3. Introduce ICSSG based ethernet Driver The Programmable Real-time Unit and Industrial Communication Subsystem Gigabit (PRU_ICSSG) is a low-latency microcontroller subsystem in the TI SoCs. This subsystem is provided for the use cases like implementation of custom peripheral interfaces, offloading of tasks from the other processor cores of the SoC, etc. The subsystem includes many accelerators for data processing like multiplier and multiplier-accumulator. It also has peripherals like UART, MII/RGMII, MDIO, etc. Every ICSSG core includes two 32-bit load/store RISC CPU cores called PRUs. The above features allow it to be used for implementing custom firmware based peripherals like ethernet. This series adds the YAML documentation and the driver with basic EMAC support for TI AM654 Silicon Rev 2 SoC with the PRU_ICSSG Sub-system. running dual-EMAC firmware. This currently supports basic EMAC with 1Gbps and 100Mbps link. 10M and half-duplex modes are not yet supported because they require the support of an IEP, which will be added later. Advanced features like switch-dev and timestamping will be added later. Puranjay Mohan (1): dt-bindings: net: Add ICSSG Ethernet Driver bindings Roger Quadros (1): net: ti: icssg-prueth: Add ICSSG ethernet driver .../bindings/net/ti,icssg-prueth.yaml | 172 ++ .../bindings/remoteproc/ti,pru-consumer.yaml | 66 + drivers/net/ethernet/ti/Kconfig | 15 + drivers/net/ethernet/ti/Makefile | 3 + drivers/net/ethernet/ti/icssg_classifier.c | 375 ++++ drivers/net/ethernet/ti/icssg_config.c | 443 ++++ drivers/net/ethernet/ti/icssg_config.h | 200 ++ drivers/net/ethernet/ti/icssg_ethtool.c | 301 +++ drivers/net/ethernet/ti/icssg_mii_cfg.c | 104 + drivers/net/ethernet/ti/icssg_mii_rt.h | 151 ++ drivers/net/ethernet/ti/icssg_prueth.c | 1891 +++++++++++++++++ drivers/net/ethernet/ti/icssg_prueth.h | 247 +++ drivers/net/ethernet/ti/icssg_switch_map.h | 183 ++ drivers/remoteproc/pru_rproc.c | 234 +- drivers/soc/ti/pruss.c | 257 ++- include/linux/pruss.h | 300 +++ include/linux/pruss_driver.h | 72 +- 17 files changed, 4985 insertions(+), 29 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml create mode 100644 drivers/net/ethernet/ti/icssg_classifier.c create mode 100644 drivers/net/ethernet/ti/icssg_config.c create mode 100644 drivers/net/ethernet/ti/icssg_config.h create mode 100644 drivers/net/ethernet/ti/icssg_ethtool.c create mode 100644 drivers/net/ethernet/ti/icssg_mii_cfg.c create mode 100644 drivers/net/ethernet/ti/icssg_mii_rt.h create mode 100644 drivers/net/ethernet/ti/icssg_prueth.c create mode 100644 drivers/net/ethernet/ti/icssg_prueth.h create mode 100644 drivers/net/ethernet/ti/icssg_switch_map.h create mode 100644 include/linux/pruss.h -- 2.17.1
