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GET /api/patches/813129/?format=api
{ "id": 813129, "url": "http://patchwork.ozlabs.org/api/patches/813129/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20170913021017.9764-4-wenyou.yang@microchip.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": "<20170913021017.9764-4-wenyou.yang@microchip.com>", "list_archive_url": null, "date": "2017-09-13T02:10:11", "name": "[U-Boot,v5,3/9] ARM: at91: spl: Adjust switching to oscillator for SAMA5D2", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "3364bca57dffd0025444cb3c97e5d4f9e98bef41", "submitter": { "id": 69532, "url": "http://patchwork.ozlabs.org/api/people/69532/?format=api", "name": "Wenyou Yang", "email": "Wenyou.Yang@microchip.com" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20170913021017.9764-4-wenyou.yang@microchip.com/mbox/", "series": [ { "id": 2797, "url": "http://patchwork.ozlabs.org/api/series/2797/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=2797", "date": "2017-09-13T02:10:08", "name": "board: atmel: Add new board SAMA5D27-SOM1-EK board.", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/2797/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/813129/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/813129/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.denx.de\n\t(client-ip=81.169.180.215; helo=lists.denx.de;\n\tenvelope-from=u-boot-bounces@lists.denx.de;\n\treceiver=<UNKNOWN>)", "Received": [ "from lists.denx.de (dione.denx.de [81.169.180.215])\n\tby ozlabs.org (Postfix) with ESMTP id 3xsQDw6Dlnz9t30\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 13 Sep 2017 12:13:20 +1000 (AEST)", "by lists.denx.de (Postfix, from userid 105)\n\tid 90FD7C220FE; Wed, 13 Sep 2017 02:12:43 +0000 (UTC)", "from lists.denx.de (localhost [IPv6:::1])\n\tby lists.denx.de (Postfix) with ESMTP id 412DBC22228;\n\tWed, 13 Sep 2017 02:12:41 +0000 (UTC)", "by lists.denx.de (Postfix, from userid 105)\n\tid 86A2FC221BB; Wed, 13 Sep 2017 02:12:26 +0000 (UTC)", "from eusmtp01.atmel.com (eusmtp01.atmel.com [212.144.249.243])\n\tby lists.denx.de (Postfix) with ESMTPS id 939CAC2206F\n\tfor <u-boot@lists.denx.de>; Wed, 13 Sep 2017 02:12:22 +0000 (UTC)", "from apsmtp01.atmel.com (10.168.254.31) by eusmtp01.atmel.com\n\t(10.145.145.31) with Microsoft SMTP Server id 14.3.235.1;\n\tWed, 13 Sep 2017 04:11:34 +0200", "from shaarm01.corp.atmel.com (10.168.254.13) by apsmtp01.atmel.com\n\t(10.168.254.31) with Microsoft SMTP Server id 14.3.235.1;\n\tWed, 13 Sep 2017 10:15:57 +0800" ], "X-Spam-Checker-Version": "SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de", "X-Spam-Level": "", "X-Spam-Status": "No, score=-2.3 required=5.0 tests=RCVD_IN_DNSWL_MED\n\tautolearn=unavailable autolearn_force=no version=3.4.0", "From": "Wenyou Yang <wenyou.yang@microchip.com>", "To": "U-Boot Mailing List <u-boot@lists.denx.de>", "Date": "Wed, 13 Sep 2017 10:10:11 +0800", "Message-ID": "<20170913021017.9764-4-wenyou.yang@microchip.com>", "X-Mailer": "git-send-email 2.13.0", "In-Reply-To": "<20170913021017.9764-1-wenyou.yang@microchip.com>", "References": "<20170913021017.9764-1-wenyou.yang@microchip.com>", "MIME-Version": "1.0", "Cc": "Marek Vasut <marex@denx.de>, Tom Rini <trini@konsulko.com>", "Subject": "[U-Boot] [PATCH v5 3/9] ARM: at91: spl: Adjust switching to\n\toscillator for SAMA5D2", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.18", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<http://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\t<mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>" }, "content": "As said in 29.5.7 section of SAMA5D2 datasheet, before switching to\nthe crystal oscillator, a check must be carried out to ensure that\nthe oscillator is present and that its freqency is valid.\n\nSigned-off-by: Wenyou Yang <wenyou.yang@microchip.com>\nReviewed-by: Simon Glass <sjg@chromium.org>\n---\n\nChanges in v5: None\nChanges in v4: None\nChanges in v3: None\nChanges in v2: None\n\n arch/arm/mach-at91/include/mach/at91_pmc.h | 2 ++\n arch/arm/mach-at91/spl_atmel.c | 18 +++++++++++++++++-\n 2 files changed, 19 insertions(+), 1 deletion(-)", "diff": "diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h\nindex 2875ff20b1..08ad1bf2d0 100644\n--- a/arch/arm/mach-at91/include/mach/at91_pmc.h\n+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h\n@@ -87,6 +87,8 @@ typedef struct at91_pmc {\n \n #define AT91_PMC_MCFR_MAINRDY\t\t0x00010000\n #define AT91_PMC_MCFR_MAINF_MASK\t0x0000FFFF\n+#define AT91_PMC_MCFR_RCMEAS\t\t0x00100000\n+#define AT91_PMC_MCFR_CCSS_XTAL_OSC\t0x01000000\n \n #define AT91_PMC_MCKR_CSS_SLOW\t\t0x00000000\n #define AT91_PMC_MCKR_CSS_MAIN\t\t0x00000001\ndiff --git a/arch/arm/mach-at91/spl_atmel.c b/arch/arm/mach-at91/spl_atmel.c\nindex b75c2ccefd..ce16ef3bdb 100644\n--- a/arch/arm/mach-at91/spl_atmel.c\n+++ b/arch/arm/mach-at91/spl_atmel.c\n@@ -32,6 +32,20 @@ static void switch_to_main_crystal_osc(void)\n \twhile (!(readl(&pmc->sr) & AT91_PMC_IXR_MOSCS))\n \t\t;\n \n+#if defined(CONFIG_SAMA5D2)\n+\t/* Enable a measurement of the external oscillator */\n+\ttmp = readl(&pmc->mcfr);\n+\ttmp |= AT91_PMC_MCFR_CCSS_XTAL_OSC;\n+\ttmp |= AT91_PMC_MCFR_RCMEAS;\n+\twritel(tmp, &pmc->mcfr);\n+\n+\twhile (!(readl(&pmc->mcfr) & AT91_PMC_MCFR_MAINRDY))\n+\t\t;\n+\n+\tif (!(readl(&pmc->mcfr) & AT91_PMC_MCFR_MAINF_MASK))\n+\t\thang();\n+#endif\n+\n \ttmp = readl(&pmc->mor);\n \ttmp &= ~AT91_PMC_MOR_OSCBYPASS;\n \ttmp &= ~AT91_PMC_MOR_KEY(0xff);\n@@ -47,11 +61,13 @@ static void switch_to_main_crystal_osc(void)\n \twhile (!(readl(&pmc->sr) & AT91_PMC_IXR_MOSCSELS))\n \t\t;\n \n+#if !defined(CONFIG_SAMA5D2)\n \t/* Wait until MAINRDY field is set to make sure main clock is stable */\n \twhile (!(readl(&pmc->mcfr) & AT91_PMC_MAINRDY))\n \t\t;\n+#endif\n \n-#ifndef CONFIG_SAMA5D4\n+#if !defined(CONFIG_SAMA5D4) && !defined(CONFIG_SAMA5D2)\n \ttmp = readl(&pmc->mor);\n \ttmp &= ~AT91_PMC_MOR_MOSCRCEN;\n \ttmp &= ~AT91_PMC_MOR_KEY(0xff);\n", "prefixes": [ "U-Boot", "v5", "3/9" ] }