From patchwork Tue Feb 25 20:46:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Anna X-Patchwork-Id: 11404569 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 544BB13A4 for ; Tue, 25 Feb 2020 20:47:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AA7E20675 for ; Tue, 25 Feb 2020 20:47:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="UpGn66A5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729856AbgBYUrB (ORCPT ); Tue, 25 Feb 2020 15:47:01 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:39070 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727624AbgBYUrA (ORCPT ); Tue, 25 Feb 2020 15:47:00 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01PKku1t045195; Tue, 25 Feb 2020 14:46:56 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1582663616; bh=lNwU/RHe20uc+Ql3HoJ9YcG2yowB2BOx4vCd6rGr60w=; h=From:To:CC:Subject:Date; b=UpGn66A59zgXpr4bjI5bViF8+DrVDaf12Y6K04o6xq6xH4vVxmHUYTBCAbY2fAML+ tR39s/pstbp+XZk9h8CP3R1tRATkQ4Q5W9q1vw0WiER6ECeifBZTwyoGpIdmgHWvIR HlbHL7UnmdL+tIX99S/dfEKs1DOkOOfb+/FjVqjY= Received: from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 01PKku7d022011 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 25 Feb 2020 14:46:56 -0600 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Tue, 25 Feb 2020 14:46:56 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Tue, 25 Feb 2020 14:46:55 -0600 Received: from fllv0103.dal.design.ti.com (fllv0103.dal.design.ti.com [10.247.120.73]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01PKktIp059180; Tue, 25 Feb 2020 14:46:55 -0600 Received: from localhost (irmo.dhcp.ti.com [128.247.58.153]) by fllv0103.dal.design.ti.com (8.14.7/8.14.7) with ESMTP id 01PKktVd025457; Tue, 25 Feb 2020 14:46:55 -0600 From: Suman Anna To: Tony Lindgren CC: Roger Quadros , Tero Kristo , , , , Suman Anna Subject: [PATCH 00/12] ti-sysc support for PRUSS Date: Tue, 25 Feb 2020 14:46:37 -0600 Message-ID: <20200225204649.28220-1-s-anna@ti.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Hi Tony, The following series adds the ti-sysc support for the PRUSS IP present on some AM33xx, AM437x and AM57xx SoCs. This series is a revamped and more complete version of the previous attempt [1] made last year and includes support for AM33xx and AM437x now that the reset dependencies are fully upstream. The OCP master ports are not enabled by default now, and the ti-sysc bus driver only handles the important quirk needed for suspend/resume on AM33xx and AM437x SoCs. The series includes patches for both the ti-sysc bindings and the bus driver, along with all the DTS nodes. Patches are based on 5.6-rc1. The dts nodes can be added added independently of the corresponding hwmod cleanup [2]. This forms the foundation before the rest of the PRUSS platform drivers can be added. Please consider the series for 5.7, and I can post the PRUSS platform driver and/or PRUSS INTC driver for 5.8. The integration of the IP is different on different SoC families, and following are some differences: 1. AM33xx and AM437x SoCs need a PRCM reset line to be deasserted as well to be able to access any PRUSS registers. 2. AM437x has two PRUSS instances, with the smaller PRU-ICSS0 connected through the larger PRU-ICSS1. There is only a single interconnect target node added. AM57xx has no reset lines, and only requires the module to be enabled. 3. AM57xx has two identical instances, but do not require any reset lines. 4. PRUSS is present only on some SoCs on each SoC family: - AM3356 and above SoCs on AM335x family - AM4376 and above SoCs on AM437x family - AM57xx SoCs only; not supported on DRA7xx SoCs. The sanity testing can be done by turning on the power through the sysfs for now. These will be taken care of automatically when the PRUSS platform driver will invoke the pm_runtime_get_sync() and put_sync() as the PRUSS nodes will be children of the ti-sysc interconnect nodes. 1. AM335x echo on > /sys/bus/platform/devices/4a326000.target-module/power/control 2. AM437x echo on > /sys/bus/platform/devices/54426000.target-module/power/control 3. AM57xx echo on > /sys/bus/platform/devices/4b226000.target-module/power/control echo on > /sys/bus/platform/devices/4b2a6000.target-module/power/control Here are the version numbers from the CFG sub-module on these IPs that are used for the ti-sysc quirks: AM335x : 0x47000000 AM437x PRUSS1 : 0x47000200 AM437x PRUSS0 : 0x47010100 AM57xx PRUSS0 & PRUSS1 : 0x47000201 regards Suman [1] https://patchwork.kernel.org/cover/10796015/ [2] https://patchwork.kernel.org/cover/11402083/ Roger Quadros (1): dt-bindings: bus: ti-sysc: Add support for PRUSS SYSC type Suman Anna (11): bus: ti-sysc: Add support for PRUSS SYSC type ARM: dts: AM33xx-l4: Update PRUSS interconnect target-module node ARM: dts: AM4372: Add the PRU-ICSS interconnect target-module node ARM: dts: dra7: Add PRU-ICSS interconnect target-module nodes ARM: dts: am335x-bone-common: Enable PRU-ICSS interconnect node ARM: dts: am335x-evm: Enable PRU-ICSS interconnect node ARM: dts: am335x-evmsk: Enable PRU-ICSS interconnect node ARM: dts: am335x-icev2: Enable PRU-ICSS interconnect node ARM: dts: am437x-gp-evm: Enable PRU-ICSS interconnect node ARM: dts: am437x-sk: Enable PRU-ICSS interconnect node ARM: dts: am437x-idk: Enable PRU-ICSS interconnect node .../devicetree/bindings/bus/ti-sysc.txt | 1 + arch/arm/boot/dts/am335x-bone-common.dtsi | 4 ++ arch/arm/boot/dts/am335x-evm.dts | 4 ++ arch/arm/boot/dts/am335x-evmsk.dts | 4 ++ arch/arm/boot/dts/am335x-icev2.dts | 4 ++ arch/arm/boot/dts/am33xx-l4.dtsi | 21 ++++++-- arch/arm/boot/dts/am4372.dtsi | 23 +++++++++ arch/arm/boot/dts/am437x-gp-evm.dts | 4 ++ arch/arm/boot/dts/am437x-idk-evm.dts | 4 ++ arch/arm/boot/dts/am437x-sk-evm.dts | 4 ++ arch/arm/boot/dts/am57-pruss.dtsi | 50 +++++++++++++++++++ arch/arm/boot/dts/am5718.dtsi | 1 + arch/arm/boot/dts/am5728.dtsi | 1 + arch/arm/boot/dts/am5748.dtsi | 1 + arch/arm/boot/dts/dra7.dtsi | 2 +- drivers/bus/ti-sysc.c | 27 ++++++++++ include/dt-bindings/bus/ti-sysc.h | 4 ++ include/linux/platform_data/ti-sysc.h | 2 + 18 files changed, 157 insertions(+), 4 deletions(-) create mode 100644 arch/arm/boot/dts/am57-pruss.dtsi