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X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.4.86 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Fan , abel.vesa@nxp.com, Anson.Huang@nxp.com, linux-kernel@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, festevam@gmail.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org From: Peng Fan Configure PMPROT to let ARM core could run into HSRUN mode. In LDO-enabled mode, HSRUN mode is not allowed, so add a check before configure PMPROT. Signed-off-by: Peng Fan --- V2: None arch/arm/mach-imx/pm-imx7ulp.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm/mach-imx/pm-imx7ulp.c b/arch/arm/mach-imx/pm-imx7ulp.c index 2e756d8191fa..393faf1e8382 100644 --- a/arch/arm/mach-imx/pm-imx7ulp.c +++ b/arch/arm/mach-imx/pm-imx7ulp.c @@ -11,6 +11,10 @@ #include "common.h" +#define PMC0_CTRL 0x28 +#define BM_CTRL_LDOEN BIT(31) + +#define SMC_PMPROT 0x8 #define SMC_PMCTRL 0x10 #define BP_PMCTRL_PSTOPO 16 #define PSTOPO_PSTOP3 0x3 @@ -25,7 +29,10 @@ #define BM_PMCTRL_RUNM (3 << BP_PMCTRL_RUNM) #define BM_PMCTRL_STOPM (7 << BP_PMCTRL_STOPM) +#define BM_PMPROT_AHSRUN BIT(7) + static void __iomem *smc1_base; +static void __iomem *pmc0_base; int imx7ulp_set_lpm(enum ulp_cpu_pwr_mode mode) { @@ -65,5 +72,13 @@ void __init imx7ulp_pm_init(void) of_node_put(np); WARN_ON(!smc1_base); + np = of_find_compatible_node(NULL, NULL, "fsl,imx7ulp-pmc0"); + pmc0_base = of_iomap(np, 0); + WARN_ON(!pmc0_base); + of_node_put(np); + + if (!(readl_relaxed(pmc0_base + PMC0_CTRL) & BM_CTRL_LDOEN)) + writel_relaxed(BM_PMPROT_AHSRUN, smc1_base + SMC_PMPROT); + imx7ulp_set_lpm(ULP_PM_RUN); } From patchwork Mon Apr 13 06:49:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Fan X-Patchwork-Id: 1269690 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20170209 header.b=o9pXW6wX; 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Received: from AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) by AM0PR04MB4564.eurprd04.prod.outlook.com (2603:10a6:208:74::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2900.15; Mon, 13 Apr 2020 06:57:34 +0000 Received: from AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::ad44:6b0d:205d:f8fc]) by AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::ad44:6b0d:205d:f8fc%7]) with mapi id 15.20.2900.026; Mon, 13 Apr 2020 06:57:34 +0000 From: peng.fan@nxp.com To: shawnguo@kernel.org, s.hauer@pengutronix.de, sboyd@kernel.org, robh+dt@kernel.org Subject: [PATCH V2 4/4] ARM: imx: cpuidle-imx7ulp: Stop mode disallowed when HSRUN Date: Mon, 13 Apr 2020 14:49:08 +0800 Message-Id: <1586760548-23046-5-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1586760548-23046-1-git-send-email-peng.fan@nxp.com> References: <1586760548-23046-1-git-send-email-peng.fan@nxp.com> X-ClientProxiedBy: SG2PR06CA0143.apcprd06.prod.outlook.com (2603:1096:1:1f::21) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR06CA0143.apcprd06.prod.outlook.com (2603:1096:1:1f::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2900.15 via Frontend Transport; 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X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: ocnVeYye+I3gXEAzkGIA3zEbNMBnSvgWz68vt/2ELxD5GUU8rixLJK4x73E3KwZMsdrty5NrOHV+7MAYpWe+xSl7zVjKY8vv2JPsTrVNOJW7rOrUu0AeicyottOHMmhij5omOVN7U/2kdsEs3rxBuw== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 44ffc4fa-0533-4cc0-511d-08d7df77f154 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Apr 2020 06:57:34.1670 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: WI56JPmiNZuHbR7+kCFMSkqpW6X4eQtPhQ9qqCHbfAr80dbmSPhOGgtQj8huIHLeeAqg6+h0CRvwU34DIwZhnw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB4564 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200412_235735_401143_86AA7AB8 X-CRM114-Status: GOOD ( 12.35 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.4.86 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Fan , abel.vesa@nxp.com, Anson.Huang@nxp.com, linux-kernel@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, festevam@gmail.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org From: Peng Fan When cpu runs in HSRUN mode, cpuidle is not allowed to run into Stop mode. So add imx7ulp_get_mode to get thr cpu run mode, and use WAIT mode instead, when cpu in HSRUN mode. Signed-off-by: Peng Fan --- V2: None arch/arm/mach-imx/common.h | 1 + arch/arm/mach-imx/cpuidle-imx7ulp.c | 14 +++++++++++--- arch/arm/mach-imx/pm-imx7ulp.c | 10 ++++++++++ 3 files changed, 22 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index 5aa5796cff0e..db542da4fe67 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -104,6 +104,7 @@ void imx6_set_int_mem_clk_lpm(bool enable); void imx6sl_set_wait_clk(bool enter); int imx_mmdc_get_ddr_type(void); int imx7ulp_set_lpm(enum ulp_cpu_pwr_mode mode); +u32 imx7ulp_get_mode(void); void imx_cpu_die(unsigned int cpu); int imx_cpu_kill(unsigned int cpu); diff --git a/arch/arm/mach-imx/cpuidle-imx7ulp.c b/arch/arm/mach-imx/cpuidle-imx7ulp.c index ca86c967d19e..e7009d10b331 100644 --- a/arch/arm/mach-imx/cpuidle-imx7ulp.c +++ b/arch/arm/mach-imx/cpuidle-imx7ulp.c @@ -15,10 +15,18 @@ static int imx7ulp_enter_wait(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - if (index == 1) + u32 mode; + + if (index == 1) { imx7ulp_set_lpm(ULP_PM_WAIT); - else - imx7ulp_set_lpm(ULP_PM_STOP); + } else { + mode = imx7ulp_get_mode(); + + if (mode == 3) + imx7ulp_set_lpm(ULP_PM_WAIT); + else + imx7ulp_set_lpm(ULP_PM_STOP); + } cpu_do_idle(); diff --git a/arch/arm/mach-imx/pm-imx7ulp.c b/arch/arm/mach-imx/pm-imx7ulp.c index 393faf1e8382..1410ccfc71bd 100644 --- a/arch/arm/mach-imx/pm-imx7ulp.c +++ b/arch/arm/mach-imx/pm-imx7ulp.c @@ -63,6 +63,16 @@ int imx7ulp_set_lpm(enum ulp_cpu_pwr_mode mode) return 0; } +u32 imx7ulp_get_mode(void) +{ + u32 mode; + + mode = readl_relaxed(smc1_base + SMC_PMCTRL) & BM_PMCTRL_RUNM; + mode >>= BP_PMCTRL_RUNM; + + return mode; +} + void __init imx7ulp_pm_init(void) { struct device_node *np;