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Fri, 4 Aug 2023 19:01:24 +0000 From: Shengyu Qu To: bcousson@baylibre.com, tony@atomide.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Shengyu Qu Subject: [PATCH v1 1/2] ARM: dts: am335x-bone-common: Add vcc-supply for on-board eeprom Date: Sat, 5 Aug 2023 03:00:42 +0800 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230804190042.2529-2-wiagn233@outlook.com> References: <20230804190042.2529-2-wiagn233@outlook.com> X-TMN: [XrOyQvcxSscIFb7IWRAfWMuon9cuTYiN] X-ClientProxiedBy: TYCP286CA0110.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:29c::17) To TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:23e::10) X-Microsoft-Original-Message-ID: <20230804190042.2529-3-wiagn233@outlook.com> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY3P286MB2611:EE_|TY3P286MB3567:EE_ X-MS-Office365-Filtering-Correlation-Id: 3682c3cc-d6ef-4a48-443f-08db951d32f5 X-MS-Exchange-SLBlob-MailProps: AZnQBsB9XmpxrhdUD5+exU9PLY0XN71Vka4GvO4JoMGst+pLzZiZIVRa/eZSSyaBaXbSWiVk8OupZoLhuDy3kBzfPeJhosuFI3fOZADQ8+LAUCrm0qAPJv1ay8mmxnu7+JJjPkXimpo0oulIYmgD1uFHFeUy6dNMIrEJ2zBdE548KfQp+tK8Ktf7YTYQ7Yr2VVyqUgmrnM9PJA4GnZGW+P1LhIY0bnBp715talK0uEp9j0dksGiD4Xne+vfZIezsa+aNzL5cTZnwcRRTTf/e5hBK7qBWfwR7E+jEVmbycf7/Ec1ajryxDkaz5vWIwnQpn0OmCuXu0aCd5+XYsWDzogj+TfhPYmZhLDj54fkvoU9ssuOtoX4RlkK8V1ZSBftTrYgR+mMMUJW72CHmBFwJajZwq9PnNlGEBX7BNHPtcq1+9fKe8glbTn2Uel3p3xdgbMa0mZZSNGKDBFqcNo/C5x3hZDs/AiuGF+i4q6hDIMlDgUGjIxOvtLI1d0kUnZx944PuWjBFzQk7KrpW/YbZ1e7MaMv/PdbgHeM2SA51dZGPg6An7TW8eZcnW+EZ1/JgyaQbvG60VNv72pyI1AGil5AqY5WR/cnCIQyFspaOjyJrmQTbAtIPwAP8MT8El1DN2RJNe90/fijxVnPNuIS3OEp3OjuUVh0oksYnQdEPBFT2mK8XymQoZmK5elQmW3M1IR/9xqEfjxA23jE7pghDISNhWfoAW0tb3yTkv/Qxz2gXLRnSEXX+s/Ex3G0OchMu/myP2ahJY5g= X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Shengyu Qu --- arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi index b958607c71dc..7b784a87efc6 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi +++ b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi @@ -215,6 +215,7 @@ tps: tps@24 { baseboard_eeprom: baseboard_eeprom@50 { compatible = "atmel,24c256"; reg = <0x50>; + vcc-supply = <&ldo4_reg>; #address-cells = <1>; #size-cells = <1>; From patchwork Fri Aug 4 19:00:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Shengyu X-Patchwork-Id: 710696 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F8A6C001DE for ; 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Fri, 4 Aug 2023 19:01:26 +0000 Received: from TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM ([fe80::e67d:f61a:b248:f597]) by TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM ([fe80::e67d:f61a:b248:f597%3]) with mapi id 15.20.6652.022; Fri, 4 Aug 2023 19:01:26 +0000 From: Shengyu Qu To: bcousson@baylibre.com, tony@atomide.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Shengyu Qu , Robert Nelson Subject: [PATCH v1 2/2] ARM: dts: am335x-bone-common: Add GPIO PHY reset on revision C3 board Date: Sat, 5 Aug 2023 03:00:43 +0800 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230804190042.2529-2-wiagn233@outlook.com> References: <20230804190042.2529-2-wiagn233@outlook.com> X-TMN: [r5pGem7VIyW+eYsyHYRfShvE+tAeVVCy] X-ClientProxiedBy: TYCP286CA0110.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:29c::17) To TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:23e::10) X-Microsoft-Original-Message-ID: <20230804190042.2529-4-wiagn233@outlook.com> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY3P286MB2611:EE_|TY3P286MB3567:EE_ X-MS-Office365-Filtering-Correlation-Id: 0e5da0d8-48c7-46ce-c764-08db951d3409 X-MS-Exchange-SLBlob-MailProps: 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 X-Microsoft-Antispam: BCL:0; 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This fixes a random phy startup failure bug discussed at [1]. The GPIO pin used for reset is not used on older revisions, so it is ok to apply to all board revisions. The reset timing was discussed and tested at [2]. [1] https://forum.digikey.com/t/ethernet-device-is-not-detecting-on-ubuntu-20-04-lts-on-bbg/19948 [2] https://forum.beagleboard.org/t/recognizing-a-beaglebone-black-rev-c3-board/31249/ Signed-off-by: Robert Nelson Signed-off-by: Shengyu Qu --- arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi index 7b784a87efc6..943d40fe2272 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi +++ b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi @@ -145,6 +145,8 @@ davinci_mdio_default: davinci-mdio-default-pins { /* MDIO */ AM33XX_PADCONF(AM335X_PIN_MDIO, PIN_INPUT_PULLUP | SLEWCTRL_FAST, MUX_MODE0) AM33XX_PADCONF(AM335X_PIN_MDC, PIN_OUTPUT_PULLUP, MUX_MODE0) + /* added to support GPIO controlled PHY reset */ + AM33XX_PADCONF(AM335X_PIN_UART0_CTSN, PIN_OUTPUT_PULLUP, MUX_MODE7) >; }; @@ -153,6 +155,8 @@ davinci_mdio_sleep: davinci-mdio-sleep-pins { /* MDIO reset value */ AM33XX_PADCONF(AM335X_PIN_MDIO, PIN_INPUT_PULLDOWN, MUX_MODE7) AM33XX_PADCONF(AM335X_PIN_MDC, PIN_INPUT_PULLDOWN, MUX_MODE7) + /* added to support GPIO controlled PHY reset */ + AM33XX_PADCONF(AM335X_PIN_UART0_CTSN, PIN_INPUT_PULLDOWN, MUX_MODE7) >; }; @@ -378,6 +382,10 @@ &davinci_mdio_sw { ethphy0: ethernet-phy@0 { reg = <0>; + // Support GPIO Reset on Rev C3 boards + reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; + reset-assert-us = <300>; + reset-deassert-us = <6500>; }; };