From: andrew@lunn.ch (Andrew Lunn)
To: linux-arm-kernel@lists.infradead.org
Subject: Kirkwood dts spi-gpio
Date: Wed, 9 Mar 2016 15:30:36 +0100 [thread overview]
Message-ID: <20160309143036.GC31963@lunn.ch> (raw)
In-Reply-To: <O3RWO7$37CF1BBB1164539CA7B18E9E6A340454@sintau.it>
On Wed, Mar 09, 2016 at 02:12:07PM +0100, a.lombardinilo wrote:
> I added dts files in the following section:
>
> ??????? spi_gpio {
> ??????????????? #address-cells = <1>;
> ??????????????? #size-cells = <1>;
>
> ??????????????? compatible = "spi-gpio";
>
> ??????????????? status = "okay";
> ??????????????? gpio-sck = <&gpio1 40 GPIO_ACTIVE_LOW>;
40 is invalid. It should be in the range 0-31.
Try gpio-sck = <&gpio1 8 GPIO_ACTIVE_LOW>;
Also, why are you doing spi-gpio?
Looking at the pinctrl driver, these pins can be used by a real SPI
core:
MPP_MODE(39,
MPP_VAR_FUNCTION(0x0, "gpio", NULL, V(0, 0, 0, 1, 1, 1)),
MPP_VAR_FUNCTION(0x1, "ts", "mp3", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x2, "tdm", "spi-cs0", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x4, "audio", "bclk", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0xb, "lcd", "d19", V(0, 0, 0, 0, 1, 0))),
MPP_MODE(40,
MPP_VAR_FUNCTION(0x0, "gpio", NULL, V(0, 0, 0, 1, 1, 1)),
MPP_VAR_FUNCTION(0x1, "ts", "mp4", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x2, "tdm", "spi-sck", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x4, "audio", "sdo", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0xb, "lcd", "d20", V(0, 0, 0, 0, 1, 0))),
MPP_MODE(41,
MPP_VAR_FUNCTION(0x0, "gpio", NULL, V(0, 0, 0, 1, 1, 1)),
MPP_VAR_FUNCTION(0x1, "ts", "mp5", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x2, "tdm", "spi-miso", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x4, "audio", "lrclk", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0xb, "lcd", "d21", V(0, 0, 0, 0, 1, 0))),
MPP_MODE(42,
MPP_VAR_FUNCTION(0x0, "gpio", NULL, V(0, 0, 0, 1, 1, 1)),
MPP_VAR_FUNCTION(0x1, "ts", "mp6", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x2, "tdm", "spi-mosi", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0x4, "audio", "mclk", V(0, 0, 0, 1, 1, 0)),
MPP_VAR_FUNCTION(0xb, "lcd", "d22", V(0, 0, 0, 0, 1, 0))),
Andrew
next prev parent reply other threads:[~2016-03-09 14:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-09 10:05 Kirkwood dts spi-gpio a.lombardinilo
2016-03-09 13:12 ` a.lombardinilo
2016-03-09 14:30 ` Andrew Lunn [this message]
2016-03-09 15:45 ` a.lombardinilo
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