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ARM: at91: add pull-up to i2c[02] on SAMA5D3 Xplained

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As there are no pull-up resistors on the board itself it can be useful to
use the SoC pad pull-up to be able to easily connect usual i2c devices.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Nicolas Ferre 2014-03-27 11:44:11 +01:00
parent 201d7dd0da
commit a3b8a7c7f9
1 changed files with 14 additions and 0 deletions
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14
arch/arm/boot/dts/at91-sama5d3_xplained.dts
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@ -43,6 +43,7 @@
}; };
i2c0: i2c@f0014000 { i2c0: i2c@f0014000 {
pinctrl-0 = <&pinctrl_i2c0_pu>;
status = "okay"; status = "okay";
}; };
@ -102,6 +103,7 @@
i2c2: i2c@f801c000 { i2c2: i2c@f801c000 {
dmas = <0>, <0>; /* Do not use DMA for i2c2 */ dmas = <0>, <0>; /* Do not use DMA for i2c2 */
pinctrl-0 = <&pinctrl_i2c2_pu>;
status = "okay"; status = "okay";
}; };
@ -116,6 +118,18 @@
pinctrl@fffff200 { pinctrl@fffff200 {
board { board {
pinctrl_i2c0_pu: i2c0_pu {
atmel,pins =
<AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
<AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_i2c2_pu: i2c2_pu {
atmel,pins =
<AT91_PIOA 18 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>,
<AT91_PIOA 19 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
};
pinctrl_mmc0_cd: mmc0_cd { pinctrl_mmc0_cd: mmc0_cd {
atmel,pins = atmel,pins =
<AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; <AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;