From patchwork Wed Mar 10 07:28:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rakesh Pillai X-Patchwork-Id: 397885 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 9FE13C4332B for ; Wed, 10 Mar 2021 07:29:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 84F9B65029 for ; Wed, 10 Mar 2021 07:29:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229755AbhCJH2s (ORCPT ); Wed, 10 Mar 2021 02:28:48 -0500 Received: from z11.mailgun.us ([104.130.96.11]:64237 "EHLO z11.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231163AbhCJH2g (ORCPT ); Wed, 10 Mar 2021 02:28:36 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1615361316; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=qlOSLNFKSydtK2lqbeK6cbgiSYOFKDU287spEtLrDcs=; b=QnjyRQG9/+uEL100xc/AHp/VAhmFO5jCzaLIspPf22pM78OSpZID4eifrAkdci+mqZOGHdiT 3qHqOG/LRUUjtKH0l4JkCUh+M+CqxFRsjJVq09x7TDfjRHFyFQsRbxEAVzpTQP1Ds1fID+y2 /jEfJ5Ctdk/zJ4/jtLVHhQVc26A= X-Mailgun-Sending-Ip: 104.130.96.11 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 60487523b86af9bf233a4e32 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 10 Mar 2021 07:28:35 GMT Sender: pillair=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 79F9BC433ED; Wed, 10 Mar 2021 07:28:34 +0000 (UTC) Received: from pillair-linux.qualcomm.com (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: pillair) by smtp.codeaurora.org (Postfix) with ESMTPSA id 84AE5C433CA; Wed, 10 Mar 2021 07:28:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 84AE5C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=pillair@codeaurora.org From: Rakesh Pillai To: agross@kernel.org, bjorn.andersson@linaro.org, ohad@wizery.com, mathieu.poirier@linaro.org, robh+dt@kernel.org, p.zabel@pengutronix.de Cc: sibis@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rakesh Pillai Subject: [PATCH 2/2] remoteproc: qcom: q6v5_wpss: Add support for sc7280 WPSS Date: Wed, 10 Mar 2021 12:58:10 +0530 Message-Id: <1615361290-19238-3-git-send-email-pillair@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1615361290-19238-1-git-send-email-pillair@codeaurora.org> References: <1615361290-19238-1-git-send-email-pillair@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for PIL loading of WPSS processor for SC7280 WPSS boot will be requested by the wifi driver and hence disable auto-boot for WPSS. Also add a separate shutdown sequence handler for WPSS. Signed-off-by: Rakesh Pillai --- drivers/remoteproc/qcom_q6v5_adsp.c | 77 ++++++++++++++++++++++++++++++++++++- 1 file changed, 76 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c index e024502..dc6b91d 100644 --- a/drivers/remoteproc/qcom_q6v5_adsp.c +++ b/drivers/remoteproc/qcom_q6v5_adsp.c @@ -58,6 +58,8 @@ struct adsp_pil_data { const char *ssr_name; const char *sysmon_name; int ssctl_id; + bool is_wpss; + bool auto_boot; const char **clk_ids; int num_clks; @@ -96,8 +98,54 @@ struct qcom_adsp { struct qcom_rproc_glink glink_subdev; struct qcom_rproc_ssr ssr_subdev; struct qcom_sysmon *sysmon; + + int (*shutdown)(struct qcom_adsp *adsp); }; +static int qcom_wpss_shutdown(struct qcom_adsp *adsp) +{ + unsigned long timeout; + unsigned int val; + int ret; + + regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 1); + + /* Wait for halt ACK from QDSP6 */ + timeout = jiffies + msecs_to_jiffies(ACK_TIMEOUT); + for (;;) { + ret = regmap_read(adsp->halt_map, + adsp->halt_lpass + LPASS_HALTACK_REG, &val); + if (ret || val || time_after(jiffies, timeout)) + break; + + usleep_range(1000, 1100); + } + + /* Place the WPSS processor into reset */ + reset_control_assert(adsp->restart); + /* wait after asserting subsystem restart from AOSS */ + usleep_range(100, 105); + /* Remove the WPSS reset */ + reset_control_deassert(adsp->restart); + + usleep_range(100, 105); + + regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 0); + + /* Wait for halt ACK from QDSP6 */ + timeout = jiffies + msecs_to_jiffies(ACK_TIMEOUT); + for (;;) { + ret = regmap_read(adsp->halt_map, + adsp->halt_lpass + LPASS_HALTACK_REG, &val); + if (ret || !val || time_after(jiffies, timeout)) + break; + + usleep_range(1000, 1100); + } + + return 0; +} + static int qcom_adsp_shutdown(struct qcom_adsp *adsp) { unsigned long timeout; @@ -270,7 +318,7 @@ static int adsp_stop(struct rproc *rproc) if (ret == -ETIMEDOUT) dev_err(adsp->dev, "timed out on wait\n"); - ret = qcom_adsp_shutdown(adsp); + ret = adsp->shutdown(adsp); if (ret) dev_err(adsp->dev, "failed to shutdown: %d\n", ret); @@ -439,6 +487,8 @@ static int adsp_probe(struct platform_device *pdev) dev_err(&pdev->dev, "unable to allocate remoteproc\n"); return -ENOMEM; } + + rproc->auto_boot = desc->auto_boot; rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE); adsp = (struct qcom_adsp *)rproc->priv; @@ -447,6 +497,11 @@ static int adsp_probe(struct platform_device *pdev) adsp->info_name = desc->sysmon_name; platform_set_drvdata(pdev, adsp); + if (desc->is_wpss) + adsp->shutdown = qcom_wpss_shutdown; + else + adsp->shutdown = qcom_adsp_shutdown; + ret = adsp_alloc_memory_region(adsp); if (ret) goto free_rproc; @@ -515,6 +570,8 @@ static const struct adsp_pil_data adsp_resource_init = { .ssr_name = "lpass", .sysmon_name = "adsp", .ssctl_id = 0x14, + .is_wpss = false, + .auto_boot = true; .clk_ids = (const char*[]) { "sway_cbcr", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr", "qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core", NULL @@ -528,6 +585,8 @@ static const struct adsp_pil_data cdsp_resource_init = { .ssr_name = "cdsp", .sysmon_name = "cdsp", .ssctl_id = 0x17, + .is_wpss = false, + .auto_boot = true; .clk_ids = (const char*[]) { "sway", "tbu", "bimc", "ahb_aon", "q6ss_slave", "q6ss_master", "q6_axim", NULL @@ -535,7 +594,23 @@ static const struct adsp_pil_data cdsp_resource_init = { .num_clks = 7, }; +static const struct adsp_pil_data wpss_resource_init = { + .crash_reason_smem = 626, + .firmware_name = "wpss.mdt", + .ssr_name = "wpss", + .sysmon_name = "wpss", + .ssctl_id = 0x19, + .is_wpss = true, + .auto_boot = false; + .clk_ids = (const char*[]) { + "gcc_wpss_ahb_bdg_mst_clk", "gcc_wpss_ahb_clk", + "gcc_wpss_rscp_clk", NULL + }, + .num_clks = 3, +}; + static const struct of_device_id adsp_of_match[] = { + { .compatible = "qcom,sc7280-wpss-pil", .data = &wpss_resource_init }, { .compatible = "qcom,qcs404-cdsp-pil", .data = &cdsp_resource_init }, { .compatible = "qcom,sdm845-adsp-pil", .data = &adsp_resource_init }, { },