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Thu, 20 Dec 2018 07:49:38 +0000 From: BOUGH CHEN To: "ulf.hansson@linaro.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , Fabio Estevam , "adrian.hunter@intel.com" Subject: [PATCH 1/3] dt-bindings: mmc: fsl-imx-esdhc: add imx6ull compatible string Thread-Topic: [PATCH 1/3] dt-bindings: mmc: fsl-imx-esdhc: add imx6ull compatible string Thread-Index: AQHUmDiOtUFXPIG7hEqnrPtukWPVZQ== Date: Thu, 20 Dec 2018 07:49:37 +0000 Message-ID: <1545292612-14471-1-git-send-email-haibo.chen@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 1.9.1 x-clientproxiedby: HK0PR03CA0025.apcprd03.prod.outlook.com (2603:1096:203:2f::13) To VI1PR04MB5040.eurprd04.prod.outlook.com (2603:10a6:803:59::33) authentication-results: spf=none (sender IP is ) smtp.mailfrom=haibo.chen@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [92.121.68.129] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; 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DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR04MB2158; H:VI1PR04MB5040.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: cdAP+INcz/xZVN3gP4pTBy9BedyDUjdLe138IgtUNtr+ZoXTy+tOea2lJGzThodoILzyKiEm1kzDfM31gCM2+WFJyrd7k0EZ8Zw5BGrD5CJciSzkh4qa00BBoW1jVyGhwryxNcNA+5kQZ/JLYgcv4cNJEYHThkr/OQ8GxATofh6iloWjLEH4yIg9WvniogsmfvQEzvV14sQZhpLRFj5LLCHGPGS8+MsxcZbdKSObQmoqinnpkcCtBSE558RDLgEAynKBClzoRsJoLbeiJBK+ASmzTICbQgf64ZmiuyexjBrFZ/kdQvbpCgslk/x+JIA/ spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 240c5be4-fbad-4ddb-d155-08d6664fb0b0 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Dec 2018 07:49:38.0086 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB2158 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181219_234955_276049_74E4EEB4 X-CRM114-Status: GOOD ( 11.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , "linux-mmc@vger.kernel.org" , dl-linux-imx , "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 X-Virus-Scanned: ClamAV using ClamSMTP Add imx6ull compatible string Signed-off-by: Haibo Chen --- Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index 9201a7d..540c65e 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -15,6 +15,7 @@ Required properties: "fsl,imx6q-usdhc" "fsl,imx6sl-usdhc" "fsl,imx6sx-usdhc" + "fsl,imx6ull-usdhc" "fsl,imx7d-usdhc" "fsl,imx8qxp-usdhc" From patchwork Thu Dec 20 07:49:46 2018 Content-Type: text/plain; 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Thu, 20 Dec 2018 07:49:46 +0000 From: BOUGH CHEN To: "ulf.hansson@linaro.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , Fabio Estevam , "adrian.hunter@intel.com" Subject: [PATCH 2/3] mmc: sdhci-esdhc-imx: add SD clock limitation for imx6ull Thread-Topic: [PATCH 2/3] mmc: sdhci-esdhc-imx: add SD clock limitation for imx6ull Thread-Index: AQHUmDiTyHn+7tGsDkmINmEMtso26w== Date: Thu, 20 Dec 2018 07:49:46 +0000 Message-ID: <1545292612-14471-2-git-send-email-haibo.chen@nxp.com> References: <1545292612-14471-1-git-send-email-haibo.chen@nxp.com> In-Reply-To: <1545292612-14471-1-git-send-email-haibo.chen@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 1.9.1 x-clientproxiedby: HK0PR03CA0025.apcprd03.prod.outlook.com (2603:1096:203:2f::13) To VI1PR04MB5040.eurprd04.prod.outlook.com (2603:10a6:803:59::33) authentication-results: spf=none (sender IP is ) smtp.mailfrom=haibo.chen@nxp.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR04MB4319; H:VI1PR04MB5040.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: kmgNAxu8nXe8xiG7ddzW9MoNVYfq9gA/NhiBOIGeDLbkpzb7ID60BSCtWdh3TEoEYr7nPNdsd+ytdDdrhq0AHhKAjYpgCAd7nyNKharzmvRmGvDjuc48/g8UICmNED8FpcK9lhvZ7BGRL7x+bOQJiduhyggMzJIWk/oSVJHebvwZIUk8gt90l739nA4GwAm18YLwm0RlW+EKD2wNPx555QsGpvYzC7yFb6+F5ASBWfHoGUWQ14iqcZbWi4VvgOiKZFqX2w4JxboQZy7rJTHMeFjywHmtCmpO8TeznSEIy3AHdWLFgG/m13NdJIW8qqsQ spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5d3c1ed6-b6a0-477e-59b8-08d6664fb615 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Dec 2018 07:49:46.9030 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4319 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181219_235002_219555_36596D00 X-CRM114-Status: GOOD ( 15.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , "linux-mmc@vger.kernel.org" , dl-linux-imx , "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 X-Virus-Scanned: ClamAV using ClamSMTP i.MX6ULL has errata ERR010450, point out that due to SOC I/O timing limitation, for eMMC HS200 and SD/SDIO 3.0 SDR104, the clock rate can't exceed 150MHz. And for eMMC DDR52 and SD/SDIO DDR50 mode, the clock rate can't exceed 45MHz. This patch add this limit for imx6ull. Signed-off-by: Haibo Chen Acked-by: Adrian Hunter Nacked-by: Russell King --- drivers/mmc/host/sdhci-esdhc-imx.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index d0d3193..75a2484 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -138,7 +138,11 @@ #define ESDHC_FLAG_HS200 BIT(8) /* The IP supports HS400 mode */ #define ESDHC_FLAG_HS400 BIT(9) - +/* The IP has errata ERR010450 + * uSDHC: Due to the I/O timing limit, for SDR mode, SD card clock can't + * exceed 150MHz, for DDR mode, SD card clock can't exceed 45MHz. + */ +#define ESDHC_FLAG_ERR010450 BIT(10) /* A clock frequency higher than this rate requires strobe dll control */ #define ESDHC_STROBE_DLL_CLK_FREQ 100000000 @@ -177,6 +181,12 @@ struct esdhc_soc_data { | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200, }; +static struct esdhc_soc_data usdhc_imx6ull_data = { + .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING + | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 + | ESDHC_FLAG_ERR010450, +}; + static struct esdhc_soc_data usdhc_imx7d_data = { .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 @@ -227,6 +237,7 @@ struct pltfm_imx_data { { .compatible = "fsl,imx6sx-usdhc", .data = &usdhc_imx6sx_data, }, { .compatible = "fsl,imx6sl-usdhc", .data = &usdhc_imx6sl_data, }, { .compatible = "fsl,imx6q-usdhc", .data = &usdhc_imx6q_data, }, + { .compatible = "fsl,imx6ull-usdhc", .data = &usdhc_imx6ull_data, }, { .compatible = "fsl,imx7d-usdhc", .data = &usdhc_imx7d_data, }, { /* sentinel */ } }; @@ -733,6 +744,12 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, | ESDHC_CLOCK_MASK); sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); + if (imx_data->socdata->flags & ESDHC_FLAG_ERR010450) { + if (imx_data->is_ddr) + clock = clock > 45000000 ? 45000000 : clock; + else + clock = clock > 150000000 ? 150000000 : clock; + while (host_clock / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256) pre_div *= 2; From patchwork Thu Dec 20 07:49:55 2018 Content-Type: text/plain; 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Thu, 20 Dec 2018 07:49:55 +0000 From: BOUGH CHEN To: "ulf.hansson@linaro.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , Fabio Estevam , "adrian.hunter@intel.com" Subject: [PATCH 3/3] ARM: dts: imx6ull: change to use new compatible "fsl,imx6ull-usdhc" for usdhc Thread-Topic: [PATCH 3/3] ARM: dts: imx6ull: change to use new compatible "fsl,imx6ull-usdhc" for usdhc Thread-Index: AQHUmDiZPrzcvBlVt0CVYqojn1jKlA== Date: Thu, 20 Dec 2018 07:49:55 +0000 Message-ID: <1545292612-14471-3-git-send-email-haibo.chen@nxp.com> References: <1545292612-14471-1-git-send-email-haibo.chen@nxp.com> In-Reply-To: <1545292612-14471-1-git-send-email-haibo.chen@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 1.9.1 x-clientproxiedby: HK0PR03CA0025.apcprd03.prod.outlook.com (2603:1096:203:2f::13) To VI1PR04MB5040.eurprd04.prod.outlook.com (2603:10a6:803:59::33) authentication-results: spf=none (sender IP is ) smtp.mailfrom=haibo.chen@nxp.com; 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This patch change to use the new compatible "fsl,imx6ull-usdhc" to follow this limitation. Signed-off-by: Haibo Chen --- arch/arm/boot/dts/imx6ull.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi index f3668fe..4ad5828 100644 --- a/arch/arm/boot/dts/imx6ull.dtsi +++ b/arch/arm/boot/dts/imx6ull.dtsi @@ -30,6 +30,14 @@ >; }; +&usdhc1 { + compatible = "fsl,imx6ull-usdhc", "fsl,imx6sx-usdhc"; +}; + +&usdhc2 { + compatible = "fsl,imx6ull-usdhc", "fsl,imx6sx-usdhc"; +}; + / { soc { aips3: aips-bus@2200000 {