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Sun, 13 Sep 2020 09:29:35 -0700 (PDT) From: Fabio Estevam To: shawnguo@kernel.org Subject: [PATCH 4/4] ARM: dts: imx6q-logicpd: Use GPIO chipselect Date: Sun, 13 Sep 2020 13:29:13 -0300 Message-Id: <20200913162913.22693-4-festevam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200913162913.22693-1-festevam@gmail.com> References: <20200913162913.22693-1-festevam@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200913_122938_416609_3CB30D92 X-CRM114-Status: GOOD ( 14.49 ) 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: Fabio Estevam , aford173@gmail.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Using the native SPI chipselect on i.MX6 is known to be problematic. Doing it on a imx6q-sabresd causes the SPI NOR probe to fail: [ 5.388704] spi-nor spi0.0: unrecognized JEDEC id bytes: 00 00 00 00 00 00 Use the GPIO chipselect to avoid such problem. Signed-off-by: Fabio Estevam --- arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi index 9e027b9a5f91..665d63765cdc 100644 --- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi +++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi @@ -212,6 +212,7 @@ &ecspi1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi1>; + cs-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>; status = "disabled"; }; @@ -383,7 +384,7 @@ MX6QDL_PAD_KEY_COL0__ECSPI1_SCLK 0x100b1 MX6QDL_PAD_KEY_ROW0__ECSPI1_MOSI 0x100b1 MX6QDL_PAD_KEY_COL1__ECSPI1_MISO 0x100b1 - MX6QDL_PAD_KEY_ROW1__ECSPI1_SS0 0x100b1 + MX6QDL_PAD_KEY_ROW1__GPIO4_IO09 0x1b0b0 >; }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel