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GET /api/patches/1378388/?format=api
{ "id": 1378388, "url": "http://patchwork.ozlabs.org/api/patches/1378388/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20201008051250.25784-2-faiz_abbas@ti.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20201008051250.25784-2-faiz_abbas@ti.com>", "list_archive_url": null, "date": "2020-10-08T05:12:34", "name": "[01/17] mmc: sdhci: Add helper functions for UHS modes", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "3a1f19ac636febd8722fd71a5f0b312d2d1f74c2", "submitter": { "id": 72140, "url": "http://patchwork.ozlabs.org/api/people/72140/?format=api", "name": "Faiz Abbas", "email": "faiz_abbas@ti.com" }, "delegate": { "id": 19261, "url": "http://patchwork.ozlabs.org/api/users/19261/?format=api", "username": "lokeshvutla", "first_name": "Lokesh", "last_name": "Vutla", "email": "lokeshvutla@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20201008051250.25784-2-faiz_abbas@ti.com/mbox/", "series": [ { "id": 206622, "url": "http://patchwork.ozlabs.org/api/series/206622/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=206622", "date": "2020-10-08T05:12:33", "name": "Add support for MMC higher speed modes for TI's am65x, j721e and j7200 platforms", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/206622/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1378388/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1378388/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": 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Oct 2020 00:13:00 -0500", "from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33])\n by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0985D0pl083019\n (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL);\n Thu, 8 Oct 2020 00:13:00 -0500", "from DFLE109.ent.ti.com (10.64.6.30) by DFLE112.ent.ti.com\n (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 8 Oct\n 2020 00:13:00 -0500", "from lelv0327.itg.ti.com (10.180.67.183) by DFLE109.ent.ti.com\n (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via\n Frontend Transport; Thu, 8 Oct 2020 00:13:00 -0500", "from a0230074-Latitude-E7470.ent.ti.com (ileax41-snat.itg.ti.com\n [10.172.224.153])\n by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0985Cpxd022642;\n Thu, 8 Oct 2020 00:12:57 -0500" ], "X-Spam-Checker-Version": "SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de", "X-Spam-Level": "", "X-Spam-Status": "No, score=-2.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,\n DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,RCVD_IN_MSPIKE_H3,\n RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham\n autolearn_force=no version=3.4.2", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com;\n s=ti-com-17Q1; t=1602133980;\n bh=9oFdvojyxTSmQHMiJWwMpIEjl65g2L6b52ICP2q3b4M=;\n h=From:To:CC:Subject:Date:In-Reply-To:References;\n b=mCJNyD5hciFTnNW3GO7MzTAWtKv/ngIAu4AdXp6pEDVaXTqvpAsdHMHgiEnxWQYMR\n gTg7ceHxsHR24s9hjl+1Npa0FFqnbY0jfDIlDQuJ+GpjZUTdfjdYRiZDorgNxMj5W4\n umwjHW8A27tmz47YbBcVUc1nT9TL4G79HiHedb8g=", "From": "Faiz Abbas <faiz_abbas@ti.com>", "To": "<u-boot@lists.denx.de>, <peng.fan@nxp.com>, <lokeshvutla@ti.com>", "CC": "<faiz_abbas@ti.com>", "Subject": "[PATCH 01/17] mmc: sdhci: Add helper functions for UHS modes", "Date": "Thu, 8 Oct 2020 10:42:34 +0530", "Message-ID": "<20201008051250.25784-2-faiz_abbas@ti.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20201008051250.25784-1-faiz_abbas@ti.com>", "References": "<20201008051250.25784-1-faiz_abbas@ti.com>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-EXCLAIMER-MD-CONFIG": "e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.102.3 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "Add a set_voltage() function which handles the switch from 3.3V to 1.8V\nfor SD card UHS modes.\n\nSigned-off-by: Faiz Abbas <faiz_abbas@ti.com>\n---\n drivers/mmc/sdhci.c | 49 +++++++++++++++++++++++++++++++++++++++++++++\n include/sdhci.h | 1 +\n 2 files changed, 50 insertions(+)", "diff": "diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c\nindex 7673219fb3..987055d970 100644\n--- a/drivers/mmc/sdhci.c\n+++ b/drivers/mmc/sdhci.c\n@@ -20,6 +20,7 @@\n #include <linux/delay.h>\n #include <linux/dma-mapping.h>\n #include <phys2bus.h>\n+#include <power/regulator.h>\n \n static void sdhci_reset(struct sdhci_host *host, u8 mask)\n {\n@@ -556,6 +557,54 @@ void sdhci_set_uhs_timing(struct sdhci_host *host)\n \tsdhci_writew(host, reg, SDHCI_HOST_CONTROL2);\n }\n \n+#if CONFIG_IS_ENABLED(MMC_IO_VOLTAGE)\n+static void sdhci_set_voltage(struct sdhci_host *host)\n+{\n+\tstruct mmc *mmc = (struct mmc *)host->mmc;\n+\tu32 ctrl;\n+\n+\tctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);\n+\n+\tswitch (mmc->signal_voltage) {\n+\tcase MMC_SIGNAL_VOLTAGE_330:\n+\t\tif (mmc->vqmmc_supply) {\n+\t\t\tregulator_set_enable(mmc->vqmmc_supply, false);\n+\t\t\tregulator_set_value(mmc->vqmmc_supply, 3300000);\n+\t\t\tregulator_set_enable(mmc->vqmmc_supply, true);\n+\t\t}\n+\n+\t\tmdelay(5);\n+\t\tif (IS_SD(mmc)) {\n+\t\t\tctrl &= ~SDHCI_CTRL_VDD_180;\n+\t\t\tsdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);\n+\t\t}\n+\t\tbreak;\n+\tcase MMC_SIGNAL_VOLTAGE_180:\n+\t\tif (mmc->vqmmc_supply) {\n+\t\t\tregulator_set_enable(mmc->vqmmc_supply, false);\n+\t\t\tregulator_set_value(mmc->vqmmc_supply, 1800000);\n+\t\t\tregulator_set_enable(mmc->vqmmc_supply, true);\n+\t\t}\n+\n+\t\tif (IS_SD(mmc)) {\n+\t\t\tctrl |= SDHCI_CTRL_VDD_180;\n+\t\t\tsdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);\n+\t\t}\n+\t\tbreak;\n+\tdefault:\n+\t\t/* No signal voltage switch required */\n+\t\treturn;\n+\t}\n+}\n+#else\n+static void sdhci_set_voltage(struct sdhci_host *host) { }\n+#endif\n+void sdhci_set_control_reg(struct sdhci_host *host)\n+{\n+\tsdhci_set_voltage(host);\n+\tsdhci_set_uhs_timing(host);\n+}\n+\n #ifdef CONFIG_DM_MMC\n static int sdhci_set_ios(struct udevice *dev)\n {\ndiff --git a/include/sdhci.h b/include/sdhci.h\nindex 94fc3ed56a..d3f8741042 100644\n--- a/include/sdhci.h\n+++ b/include/sdhci.h\n@@ -492,6 +492,7 @@ void sdhci_set_uhs_timing(struct sdhci_host *host);\n /* Export the operations to drivers */\n int sdhci_probe(struct udevice *dev);\n int sdhci_set_clock(struct mmc *mmc, unsigned int clock);\n+void sdhci_set_control_reg(struct sdhci_host *host);\n extern const struct dm_mmc_ops sdhci_ops;\n #else\n #endif\n", "prefixes": [ "01/17" ] }