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Commit 138c2b2f authored by Sylvain Rochet's avatar Sylvain Rochet Committed by Alexandre Belloni
Browse files

ARM: dts: at91: fixes dbgu pinctrl, set pullup on rx, clear pullup on tx 



Remove pullup on dbgu DTXD signal, it is a push-pull output thus the
pullup is pointless.

Add pullup on dbgu DRXD signal, it prevents the DRXD signal to be left
floating and so consuming a useless extra amount of power in crowbarred
state if nothing is externally connected to dbgu.

Signed-off-by: default avatarSylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent 3d9cc1ab

arch/arm/boot/dts/at91rm9200.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -481,8 +481,8 @@ 
				dbgu {

					pinctrl_dbgu: dbgu-0 {

						atmel,pins =

							<AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA30 periph A */

							 AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PA31 periph with pullup */

							<AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP

							 AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_NONE>;

					};

				};

arch/arm/boot/dts/at91sam9260.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -412,8 +412,8 @@ 
				dbgu {

					pinctrl_dbgu: dbgu-0 {

						atmel,pins =

							<AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB14 periph A */

							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PB15 periph with pullup */

							<AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_PULL_UP

							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE>;

					};

				};

arch/arm/boot/dts/at91sam9261.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -302,8 +302,8 @@ 
				dbgu {

					pinctrl_dbgu: dbgu-0 {

						atmel,pins =

							<AT91_PIOA 9  AT91_PERIPH_A AT91_PINCTRL_NONE>,

							<AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;

							<AT91_PIOA 9  AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,

							<AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE>;

					};

				};

arch/arm/boot/dts/at91sam9263.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -412,8 +412,8 @@ 
				dbgu {

					pinctrl_dbgu: dbgu-0 {

						atmel,pins =

							<AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC30 periph A */

							 AT91_PIOC 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PC31 periph with pullup */

							<AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP

							 AT91_PIOC 31 AT91_PERIPH_A AT91_PINCTRL_NONE>;

					};

				};

arch/arm/boot/dts/at91sam9g45.dtsi

+2 −2
Original line number Diff line number Diff line
@@ -478,8 +478,8 @@ 
				dbgu {

					pinctrl_dbgu: dbgu-0 {

						atmel,pins =

							<AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB12 periph A */

							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB13 periph A */

							<AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_PULL_UP

							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE>;

					};

				};