From patchwork Tue Sep 24 03:16:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Tang X-Patchwork-Id: 11157897 X-Patchwork-Delegate: eduardo.valentin@ti.com 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 EC74D912 for ; Tue, 24 Sep 2019 03:27:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1E1120640 for ; Tue, 24 Sep 2019 03:27:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391285AbfIXD1P (ORCPT ); Mon, 23 Sep 2019 23:27:15 -0400 Received: from inva021.nxp.com ([92.121.34.21]:60430 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394624AbfIXD1O (ORCPT ); Mon, 23 Sep 2019 23:27:14 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E8D00200019; Tue, 24 Sep 2019 05:27:11 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E7F832000B6; Tue, 24 Sep 2019 05:27:07 +0200 (CEST) Received: from titan.ap.freescale.net (TITAN.ap.freescale.net [10.192.208.233]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EA7D4402E4; Tue, 24 Sep 2019 11:27:02 +0800 (SGT) From: Yuantian Tang To: edubezval@gmail.com, rui.zhang@intel.com, anson.huang@nxp.com Cc: daniel.lezcano@linaro.org, leoyang.li@nxp.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Yuantian Tang Subject: [PATCH v2] thermal: qoriq: add thermal monitor unit version 2 support Date: Tue, 24 Sep 2019 11:16:40 +0800 Message-Id: <20190924031640.3159-1-andy.tang@nxp.com> X-Mailer: git-send-email 2.9.5 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Thermal Monitor Unit v2 is introduced on new Layscape SoC. Compared to v1, TMUv2 has a little different register layout and digital output is fairly linear. Signed-off-by: Yuantian Tang Reviewed-by: Anson Huang --- v2: - refine the code: remove redundant variable, rename variable etc. drivers/thermal/qoriq_thermal.c | 121 +++++++++++++++++++++++++------- 1 file changed, 97 insertions(+), 24 deletions(-) diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index 7b364933bfb1..43617e53554b 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -12,7 +12,16 @@ #include "thermal_core.h" -#define SITES_MAX 16 +#define SITES_MAX 16 +#define TMR_DISABLE 0x0 +#define TMR_ME 0x80000000 +#define TMR_ALPF 0x0c000000 +#define TMR_ALPF_V2 0x03000000 +#define TMTMIR_DEFAULT 0x0000000f +#define TIER_DISABLE 0x0 +#define TEUMR0_V2 0x51009c00 +#define TMU_VER1 0x1 +#define TMU_VER2 0x2 /* * QorIQ TMU Registers @@ -23,17 +32,55 @@ struct qoriq_tmu_site_regs { u8 res0[0x8]; }; -struct qoriq_tmu_regs { +struct qoriq_tmu_regs_v2 { + u32 tmr; /* Mode Register */ + u32 tsr; /* Status Register */ + u32 tmsr; /* monitor site register */ + u32 tmtmir; /* Temperature measurement interval Register */ + u8 res0[0x10]; + u32 tier; /* Interrupt Enable Register */ + u32 tidr; /* Interrupt Detect Register */ + u8 res1[0x8]; + u32 tiiscr; /* interrupt immediate site capture register */ + u32 tiascr; /* interrupt average site capture register */ + u32 ticscr; /* Interrupt Critical Site Capture Register */ + u32 res2; + u32 tmhtcr; /* monitor high temperature capture register */ + u32 tmltcr; /* monitor low temperature capture register */ + u32 tmrtrcr; /* monitor rising temperature rate capture register */ + u32 tmftrcr; /* monitor falling temperature rate capture register */ + u32 tmhtitr; /* High Temperature Immediate Threshold */ + u32 tmhtatr; /* High Temperature Average Threshold */ + u32 tmhtactr; /* High Temperature Average Crit Threshold */ + u32 res3; + u32 tmltitr; /* monitor low temperature immediate threshold */ + u32 tmltatr; /* monitor low temperature average threshold register */ + u32 tmltactr; /* monitor low temperature average critical threshold */ + u32 res4; + u32 tmrtrctr; /* monitor rising temperature rate critical threshold */ + u32 tmftrctr; /* monitor falling temperature rate critical threshold*/ + u8 res5[0x8]; + u32 ttcfgr; /* Temperature Configuration Register */ + u32 tscfgr; /* Sensor Configuration Register */ + u8 res6[0x78]; + struct qoriq_tmu_site_regs site[SITES_MAX]; + u8 res7[0x9f8]; + u32 ipbrr0; /* IP Block Revision Register 0 */ + u32 ipbrr1; /* IP Block Revision Register 1 */ + u8 res8[0x300]; + u32 teumr0; + u32 teumr1; + u32 teumr2; + u32 res9; + u32 ttrcr[4]; /* Temperature Range Control Register */ +}; + +struct qoriq_tmu_regs_v1 { u32 tmr; /* Mode Register */ -#define TMR_DISABLE 0x0 -#define TMR_ME 0x80000000 -#define TMR_ALPF 0x0c000000 u32 tsr; /* Status Register */ u32 tmtmir; /* Temperature measurement interval Register */ -#define TMTMIR_DEFAULT 0x0000000f u8 res0[0x14]; u32 tier; /* Interrupt Enable Register */ -#define TIER_DISABLE 0x0 u32 tidr; /* Interrupt Detect Register */ u32 tiscr; /* Interrupt Site Capture Register */ u32 ticscr; /* Interrupt Critical Site Capture Register */ @@ -53,10 +100,7 @@ struct qoriq_tmu_regs { u32 ipbrr0; /* IP Block Revision Register 0 */ u32 ipbrr1; /* IP Block Revision Register 1 */ u8 res6[0x310]; - u32 ttr0cr; /* Temperature Range 0 Control Register */ - u32 ttr1cr; /* Temperature Range 1 Control Register */ - u32 ttr2cr; /* Temperature Range 2 Control Register */ - u32 ttr3cr; /* Temperature Range 3 Control Register */ + u32 ttrcr[4]; /* Temperature Range Control Register */ }; struct qoriq_tmu_data; @@ -71,7 +115,9 @@ struct qoriq_sensor { }; struct qoriq_tmu_data { - struct qoriq_tmu_regs __iomem *regs; + int ver; + struct qoriq_tmu_regs_v1 __iomem *regs; + struct qoriq_tmu_regs_v2 __iomem *regs_v2; bool little_endian; struct qoriq_sensor *sensor[SITES_MAX]; }; @@ -130,12 +176,23 @@ static int qoriq_tmu_register_tmu_zone(struct platform_device *pdev) return PTR_ERR(qdata->sensor[id]->tzd); } - sites |= 0x1 << (15 - id); + if (qdata->ver == TMU_VER1) + sites |= 0x1 << (15 - id); + else + sites |= 0x1 << id; } /* Enable monitoring */ - if (sites != 0) - tmu_write(qdata, sites | TMR_ME | TMR_ALPF, &qdata->regs->tmr); + if (sites != 0) { + if (qdata->ver == TMU_VER1) { + tmu_write(qdata, sites | TMR_ME | TMR_ALPF, + &qdata->regs->tmr); + } else { + tmu_write(qdata, sites, &qdata->regs_v2->tmsr); + tmu_write(qdata, TMR_ME | TMR_ALPF_V2, + &qdata->regs_v2->tmr); + } + } return 0; } @@ -148,16 +205,20 @@ static int qoriq_tmu_calibration(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct qoriq_tmu_data *data = platform_get_drvdata(pdev); - if (of_property_read_u32_array(np, "fsl,tmu-range", range, 4)) { - dev_err(&pdev->dev, "missing calibration range.\n"); - return -ENODEV; + len = of_property_count_u32_elems(np, "fsl,tmu-range"); + if (len < 0 || len > 4) { + dev_err(&pdev->dev, "invalid range data.\n"); + return len; + } + + val = of_property_read_u32_array(np, "fsl,tmu-range", range, len); + if (val != 0) { + dev_err(&pdev->dev, "failed to read range data.\n"); + return val; } - /* Init temperature range registers */ - tmu_write(data, range[0], &data->regs->ttr0cr); - tmu_write(data, range[1], &data->regs->ttr1cr); - tmu_write(data, range[2], &data->regs->ttr2cr); - tmu_write(data, range[3], &data->regs->ttr3cr); + for (i = 0; i < len; i++) + tmu_write(data, range[i], &data->regs->ttrcr[i]); calibration = of_get_property(np, "fsl,tmu-calibration", &len); if (calibration == NULL || len % 8) { @@ -181,7 +242,12 @@ static void qoriq_tmu_init_device(struct qoriq_tmu_data *data) tmu_write(data, TIER_DISABLE, &data->regs->tier); /* Set update_interval */ - tmu_write(data, TMTMIR_DEFAULT, &data->regs->tmtmir); + if (data->ver == TMU_VER1) { + tmu_write(data, TMTMIR_DEFAULT, &data->regs->tmtmir); + } else { + tmu_write(data, TMTMIR_DEFAULT, &data->regs_v2->tmtmir); + tmu_write(data, TEUMR0_V2, &data->regs_v2->teumr0); + } /* Disable monitoring */ tmu_write(data, TMR_DISABLE, &data->regs->tmr); @@ -190,6 +256,7 @@ static void qoriq_tmu_init_device(struct qoriq_tmu_data *data) static int qoriq_tmu_probe(struct platform_device *pdev) { int ret; + u32 ver; struct qoriq_tmu_data *data; struct device_node *np = pdev->dev.of_node; @@ -209,6 +276,12 @@ static int qoriq_tmu_probe(struct platform_device *pdev) goto err_iomap; } + /* version register offset at: 0xbf8 on both v1 and v2 */ + ver = tmu_read(data, &data->regs->ipbrr0); + data->ver = (ver >> 8) & 0xff; + if (data->ver == TMU_VER2) + data->regs_v2 = (void __iomem *)data->regs; + qoriq_tmu_init_device(data); /* TMU initialization */ ret = qoriq_tmu_calibration(pdev); /* TMU calibration */