From mboxrd@z Thu Jan 1 00:00:00 1970 From: fabio.estevam@freescale.com (Fabio Estevam) Date: Tue, 6 May 2014 09:51:51 -0300 Subject: [PATCH v2 1/2] ARM: dts: imx51-eukrea-mbimxsd51-baseboard: Add CAN support Message-ID: <1399380712-4177-1-git-send-email-fabio.estevam@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add support for CAN based on a MPC2515 connected to ECSPI1. Signed-off-by: Fabio Estevam --- Changes since v1: - Use active low for spi chipselect - Remove unused GPIOs for CAN .../boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts b/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts index 8b1098e..c8ad934 100644 --- a/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts +++ b/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts @@ -86,6 +86,23 @@ status = "okay"; }; +&ecspi1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ecspi1>; + fsl,spi-num-chipselects = <1>; + cs-gpios = <&gpio4 24 GPIO_ACTIVE_LOW>; + status = "okay"; + + can0: can at 0 { + compatible = "microchip,mcp2515"; + reg = <0>; + clocks = <&clks IMX5_CLK_OSC>; + spi-max-frequency = <1000000>; + interrupt-parent = <&gpio1>; + interrupts = <1 IRQ_TYPE_EDGE_FALLING>; + }; +}; + &i2c1 { tlv320aic23: codec at 1a { compatible = "ti,tlv320aic23"; @@ -104,6 +121,17 @@ >; }; + pinctrl_ecspi1: ecspi1grp { + fsl,pins = < + MX51_PAD_CSPI1_MISO__ECSPI1_MISO 0x185 + MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI 0x185 + MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK 0x185 + MX51_PAD_CSPI1_SS0__GPIO4_24 0x80000000 /* CS0 */ + MX51_PAD_CSI2_PIXCLK__GPIO4_15 0x80000000 /* nReset */ + MX51_PAD_GPIO1_1__GPIO1_1 0x80000000 /* IRQ */ + >; + }; + pinctrl_esdhc1: esdhc1grp { fsl,pins = < MX51_PAD_SD1_CMD__SD1_CMD 0x400020d5 -- 1.8.3.2