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Tue, 21 Jan 2020 15:51:41 +0530 (IST) From: Manish Narani To: michal.simek@xilinx.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, jolly.shah@xilinx.com, rajan.vaja@xilinx.com, nava.manne@xilinx.com, manish.narani@xilinx.com, tejas.patel@xilinx.com Subject: [PATCH 1/4] firmware: xilinx: Add ZynqMP Tap Delay setup ioctl to the valid list Date: Tue, 21 Jan 2020 15:51:32 +0530 Message-Id: <1579602095-30060-2-git-send-email-manish.narani@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> References: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; IPV:; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(4636009)(136003)(39860400002)(346002)(396003)(376002)(199004)(189003)(4326008)(186003)(70206006)(6636002)(26005)(8676002)(2906002)(5660300002)(70586007)(81166006)(81156014)(36756003)(4744005)(42186006)(426003)(316002)(2616005)(478600001)(356004)(6266002)(8936002)(6666004)(44832011)(336012); 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB5896 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200121_022156_765134_425FAFEF X-CRM114-Status: GOOD ( 12.02 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -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 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: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The Tap Delay setup ioctl was not added to valid list due to which it may fail to set Tap Delays for SD. This patch fixes the same. Signed-off-by: Manish Narani Acked-by: Michal Simek --- drivers/firmware/xilinx/zynqmp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 75bdfaa08380..89eb198cee5e 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -469,6 +469,7 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) static inline int zynqmp_is_valid_ioctl(u32 ioctl_id) { switch (ioctl_id) { + case IOCTL_SET_SD_TAPDELAY: case IOCTL_SET_PLL_FRAC_MODE: case IOCTL_GET_PLL_FRAC_MODE: case IOCTL_SET_PLL_FRAC_DATA: From patchwork Tue Jan 21 10:21:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manish Narani X-Patchwork-Id: 11343459 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 7749B17EA for ; Tue, 21 Jan 2020 10:22:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5094824655 for ; 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Tue, 21 Jan 2020 02:21:42 -0800 Received: by xhdvnc125.xilinx.com (Postfix, from userid 16987) id 0E4A6121DAE; Tue, 21 Jan 2020 15:51:41 +0530 (IST) From: Manish Narani To: michal.simek@xilinx.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, jolly.shah@xilinx.com, rajan.vaja@xilinx.com, nava.manne@xilinx.com, manish.narani@xilinx.com, tejas.patel@xilinx.com Subject: [PATCH 2/4] firmware: xilinx: Add DLL reset support Date: Tue, 21 Jan 2020 15:51:33 +0530 Message-Id: <1579602095-30060-3-git-send-email-manish.narani@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> References: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; IPV:; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(4636009)(346002)(39860400002)(136003)(376002)(396003)(199004)(189003)(26005)(336012)(8936002)(70206006)(70586007)(8676002)(2906002)(81156014)(5660300002)(186003)(81166006)(36756003)(4326008)(356004)(6666004)(478600001)(6636002)(6266002)(316002)(44832011)(42186006)(2616005)(426003); 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR02MB6055 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200121_022156_596678_7CD50747 X-CRM114-Status: GOOD ( 12.72 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.92.51 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 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: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org SD DLL resets are required for some of the operations on ZynqMP platform. Add DLL reset support in ZynqMP firmware driver for SD DLL reset. Signed-off-by: Manish Narani Acked-by: Michal Simek --- drivers/firmware/xilinx/zynqmp.c | 1 + include/linux/firmware/xlnx-zynqmp.h | 9 ++++++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 89eb198cee5e..165ec0f1e10a 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -469,6 +469,7 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) static inline int zynqmp_is_valid_ioctl(u32 ioctl_id) { switch (ioctl_id) { + case IOCTL_SD_DLL_RESET: case IOCTL_SET_SD_TAPDELAY: case IOCTL_SET_PLL_FRAC_MODE: case IOCTL_GET_PLL_FRAC_MODE: diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index e41ad9e37136..01a6d972b8a8 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -92,7 +92,8 @@ enum pm_ret_status { }; enum pm_ioctl_id { - IOCTL_SET_SD_TAPDELAY = 7, + IOCTL_SD_DLL_RESET = 6, + IOCTL_SET_SD_TAPDELAY, IOCTL_SET_PLL_FRAC_MODE, IOCTL_GET_PLL_FRAC_MODE, IOCTL_SET_PLL_FRAC_DATA, @@ -262,6 +263,12 @@ enum tap_delay_type { PM_TAPDELAY_OUTPUT, }; +enum dll_reset_type { + PM_DLL_RESET_ASSERT, + PM_DLL_RESET_RELEASE, + PM_DLL_RESET_PULSE, +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID From patchwork Tue Jan 21 10:21:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manish Narani X-Patchwork-Id: 11343465 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 3E1FE109A for ; Tue, 21 Jan 2020 10:22:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1796324125 for ; Tue, 21 Jan 2020 10:22:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ccR2+O0i"; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB4731 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200121_022156_936408_4F557687 X-CRM114-Status: GOOD ( 13.00 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.223.74 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.223.74 listed in wl.mailspike.net] -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 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: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The DLL resets are required while executing the auto tuning procedure in ZynqMP. This patch adds code to support the same. Signed-off-by: Manish Narani Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-of-arasan.c | 46 ++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index e49b44b4d82e..39176ab5ca1f 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -757,6 +757,50 @@ static const struct clk_ops zynqmp_sampleclk_ops = { .set_phase = sdhci_zynqmp_sampleclk_set_phase, }; +static void arasan_zynqmp_dll_reset(struct sdhci_host *host, u32 deviceid) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host); + struct sdhci_arasan_zynqmp_clk_data *zynqmp_clk_data = + sdhci_arasan->clk_data.clk_of_data; + const struct zynqmp_eemi_ops *eemi_ops = zynqmp_clk_data->eemi_ops; + u16 clk; + + clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); + clk &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_INT_EN); + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); + + /* Issue DLL Reset */ + eemi_ops->ioctl(deviceid, IOCTL_SD_DLL_RESET, + PM_DLL_RESET_PULSE, 0, NULL); + + clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); + + sdhci_enable_clk(host, clk); +} + +static int arasan_zynqmp_execute_tuning(struct mmc_host *mmc, u32 opcode) +{ + struct sdhci_host *host = mmc_priv(mmc); + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host); + struct clk_hw *hw = &sdhci_arasan->clk_data.sdcardclk_hw; + const char *clk_name = clk_hw_get_name(hw); + u32 device_id = !strcmp(clk_name, "clk_out_sd0") ? NODE_SD_0 : + NODE_SD_1; + int err; + + arasan_zynqmp_dll_reset(host, device_id); + + err = sdhci_execute_tuning(mmc, opcode); + if (err) + return err; + + arasan_zynqmp_dll_reset(host, device_id); + + return 0; +} + /** * sdhci_arasan_update_clockmultiplier - Set corecfg_clockmultiplier * @@ -1247,6 +1291,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev) zynqmp_clk_data->eemi_ops = eemi_ops; sdhci_arasan->clk_data.clk_of_data = zynqmp_clk_data; + host->mmc_host_ops.execute_tuning = + arasan_zynqmp_execute_tuning; } arasan_dt_parse_clk_phases(&pdev->dev, &sdhci_arasan->clk_data); From patchwork Tue Jan 21 10:21:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manish Narani X-Patchwork-Id: 11343467 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 17464109A for ; Tue, 21 Jan 2020 10:22:38 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E57D52253D for ; 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Tue, 21 Jan 2020 02:21:42 -0800 Received: by xhdvnc125.xilinx.com (Postfix, from userid 16987) id 18BA3122162; Tue, 21 Jan 2020 15:51:41 +0530 (IST) From: Manish Narani To: michal.simek@xilinx.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, jolly.shah@xilinx.com, rajan.vaja@xilinx.com, nava.manne@xilinx.com, manish.narani@xilinx.com, tejas.patel@xilinx.com Subject: [PATCH 4/4] sdhci: arasan: Remove quirk for broken base clock Date: Tue, 21 Jan 2020 15:51:35 +0530 Message-Id: <1579602095-30060-5-git-send-email-manish.narani@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> References: <1579602095-30060-1-git-send-email-manish.narani@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; IPV:; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(4636009)(396003)(136003)(39860400002)(346002)(376002)(189003)(199004)(5660300002)(426003)(8936002)(6636002)(336012)(2616005)(70586007)(478600001)(26005)(316002)(42186006)(2906002)(6666004)(186003)(356004)(81166006)(4326008)(6266002)(81156014)(8676002)(44832011)(36756003)(70206006); 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB4377 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200121_022156_783496_2D88AF19 X-CRM114-Status: GOOD ( 12.60 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.223.49 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.223.49 listed in wl.mailspike.net] -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 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: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch removes quirk which indicates a broken base clock. This was making the kernel report wrong base clock of ~187MHz instead of 200MHz even as the measurement on the hardware was showing 200MHz. Signed-off-by: Manish Narani State: pending Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-of-arasan.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 39176ab5ca1f..0146d7dd315b 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -358,6 +358,17 @@ static struct sdhci_arasan_of_data sdhci_arasan_data = { .pdata = &sdhci_arasan_pdata, }; +static const struct sdhci_pltfm_data sdhci_arasan_zynqmp_pdata = { + .ops = &sdhci_arasan_ops, + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN | + SDHCI_QUIRK2_STOP_WITH_TC, +}; + +static struct sdhci_arasan_of_data sdhci_arasan_zynqmp_data = { + .pdata = &sdhci_arasan_zynqmp_pdata, +}; + static u32 sdhci_arasan_cqhci_irq(struct sdhci_host *host, u32 intmask) { int cmd_error = 0; @@ -553,7 +564,7 @@ static const struct of_device_id sdhci_arasan_of_match[] = { }, { .compatible = "xlnx,zynqmp-8.9a", - .data = &sdhci_arasan_data, + .data = &sdhci_arasan_zynqmp_data, }, { /* sentinel */ } };