From patchwork Wed Jun 17 22:31:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 198902 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1580EC433DF for ; Wed, 17 Jun 2020 22:32:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E5FA820B1F for ; Wed, 17 Jun 2020 22:32:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727024AbgFQWcT (ORCPT ); Wed, 17 Jun 2020 18:32:19 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:57354 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726913AbgFQWcS (ORCPT ); Wed, 17 Jun 2020 18:32:18 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 19B26803202A; Wed, 17 Jun 2020 22:32:12 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BF6jUKbQ7f0p; Thu, 18 Jun 2020 01:32:11 +0300 (MSK) From: Serge Semin To: Thomas Gleixner , "Rafael J. Wysocki" , Daniel Lezcano , Thomas Bogendoerfer , Greg Kroah-Hartman , Rob Herring CC: Serge Semin , Serge Semin , Rob Herring , Alexey Malahov , , , Subject: [PATCH v4 3/6] dt-bindings: bus: Add MIPS CDMM controller Date: Thu, 18 Jun 2020 01:31:57 +0300 Message-ID: <20200617223201.23259-4-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> References: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org It's a Common Device Memory Map controller embedded into the MIPS IP cores, which dts node is supposed to have compatible and reg properties. Signed-off-by: Serge Semin Reviewed-by: Rob Herring Cc: Alexey Malahov Cc: linux-mips@vger.kernel.org --- Changelog prev: - Lowercase the example hex'es. --- .../bindings/bus/mti,mips-cdmm.yaml | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml diff --git a/Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml b/Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml new file mode 100644 index 000000000000..b3ba98515cbe --- /dev/null +++ b/Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/mti,mips-cdmm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MIPS Common Device Memory Map + +description: | + Defines a location of the MIPS Common Device Memory Map registers. + +maintainers: + - James Hogan + +properties: + compatible: + const: mti,mips-cdmm + + reg: + description: | + Base address and size of an unoccupied memory region, which will be + used to map the MIPS CDMM registers block. + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + cdmm@1bde8000 { + compatible = "mti,mips-cdmm"; + reg = <0 0x1bde8000 0 0x8000>; + }; +... From patchwork Wed Jun 17 22:31:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 198901 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5BD3C433E3 for ; Wed, 17 Jun 2020 22:32:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A63BA20CC7 for ; Wed, 17 Jun 2020 22:32:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727011AbgFQWcS (ORCPT ); Wed, 17 Jun 2020 18:32:18 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:57382 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726840AbgFQWcR (ORCPT ); Wed, 17 Jun 2020 18:32:17 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id AFAB8803202C; Wed, 17 Jun 2020 22:32:12 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mdk4A4-gDvp8; Thu, 18 Jun 2020 01:32:12 +0300 (MSK) From: Serge Semin To: Thomas Gleixner , "Rafael J. Wysocki" , Daniel Lezcano , Thomas Bogendoerfer , Greg Kroah-Hartman , Serge Semin CC: Serge Semin , Alexey Malahov , , , Subject: [PATCH v4 4/6] mips: cdmm: Add mti,mips-cdmm dtb node support Date: Thu, 18 Jun 2020 01:31:58 +0300 Message-ID: <20200617223201.23259-5-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> References: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Since having and mapping the CDMM block is platform specific, then instead of just returning a zero-address, lets make the default CDMM base address search method (mips_cdmm_phys_base()) to do something useful. For instance to find the address in a dedicated dtb-node in order to support of-based platforms by default. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: devicetree@vger.kernel.org --- Changelog prev: - Use alphabetical order for the include pre-processor operator. --- drivers/bus/mips_cdmm.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c index 1b14256376d2..9f7ed1fcd428 100644 --- a/drivers/bus/mips_cdmm.c +++ b/drivers/bus/mips_cdmm.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include #include #include #include @@ -337,9 +339,22 @@ static phys_addr_t mips_cdmm_cur_base(void) * Picking a suitable physical address at which to map the CDMM region is * platform specific, so this weak function can be overridden by platform * code to pick a suitable value if none is configured by the bootloader. + * By default this method tries to find a CDMM-specific node in the system + * dtb. Note that this won't work for early serial console. */ phys_addr_t __weak mips_cdmm_phys_base(void) { + struct device_node *np; + struct resource res; + int err; + + np = of_find_compatible_node(NULL, NULL, "mti,mips-cdmm"); + if (np) { + err = of_address_to_resource(np, 0, &res); + if (!err) + return res.start; + } + return 0; } From patchwork Wed Jun 17 22:32:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 198899 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 172A5C433E6 for ; Wed, 17 Jun 2020 22:32:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0112920B1F for ; Wed, 17 Jun 2020 22:32:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726913AbgFQWch (ORCPT ); Wed, 17 Jun 2020 18:32:37 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:57420 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726761AbgFQWcS (ORCPT ); Wed, 17 Jun 2020 18:32:18 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 4A0CC80045E4; Wed, 17 Jun 2020 22:32:13 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QblWbZzot7VM; Thu, 18 Jun 2020 01:32:12 +0300 (MSK) From: Serge Semin To: Thomas Gleixner , "Rafael J. Wysocki" , Daniel Lezcano , Thomas Bogendoerfer , Greg Kroah-Hartman CC: Serge Semin , Serge Semin , Marc Zyngier , Alexey Malahov , , , Subject: [PATCH v4 6/6] MAINTAINERS: Add maintainers for MIPS core drivers Date: Thu, 18 Jun 2020 01:32:00 +0300 Message-ID: <20200617223201.23259-7-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> References: <20200617223201.23259-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add Thomas and myself as maintainers of the MIPS CPU and GIC IRQchip, MIPS GIC timer and MIPS CPS CPUidle drivers. Signed-off-by: Serge Semin Acked-by: Marc Zyngier Cc: Alexey Malahov Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org --- Changelog v3: - Keep the files list alphabetically ordered. - Add Thomas as the co-maintainer of the designated drivers. --- MAINTAINERS | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 2926327e4976..20532e0287d7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11278,6 +11278,17 @@ F: arch/mips/configs/generic/board-boston.config F: drivers/clk/imgtec/clk-boston.c F: include/dt-bindings/clock/boston-clock.h +MIPS CORE DRIVERS +M: Thomas Bogendoerfer +M: Serge Semin +L: linux-mips@vger.kernel.org +S: Supported +F: drivers/bus/mips_cdmm.c +F: drivers/clocksource/mips-gic-timer.c +F: drivers/cpuidle/cpuidle-cps.c +F: drivers/irqchip/irq-mips-cpu.c +F: drivers/irqchip/irq-mips-gic.c + MIPS GENERIC PLATFORM M: Paul Burton L: linux-mips@vger.kernel.org