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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: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
zero-colors
Sylvain Rochet 2016-10-16 18:21:45 +02:00 committed by Alexandre Belloni
parent 3d9cc1ab76
commit 138c2b2f17
10 changed files with 20 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/boot/dts/at91rm9200.dtsi
View File

@ -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>;
};
};

4
arch/arm/boot/dts/at91sam9260.dtsi
View File

@ -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>;
};
};

4
arch/arm/boot/dts/at91sam9261.dtsi
View File

@ -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>;
};
};

4
arch/arm/boot/dts/at91sam9263.dtsi
View File

@ -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>;
};
};

4
arch/arm/boot/dts/at91sam9g45.dtsi
View File

@ -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>;
};
};

4
arch/arm/boot/dts/at91sam9n12.dtsi
View File

@ -500,8 +500,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
<AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA9 periph A */
AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA10 periph with pullup */
<AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
};

4
arch/arm/boot/dts/at91sam9rl.dtsi
View File

@ -438,8 +438,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
<AT91_PIOA 21 AT91_PERIPH_A AT91_PINCTRL_NONE>,
<AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
<AT91_PIOA 21 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
<AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
};

4
arch/arm/boot/dts/at91sam9x5.dtsi
View File

@ -460,8 +460,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
<AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA9 periph A */
AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA10 periph A with pullup */
<AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
};

4
arch/arm/boot/dts/sama5d3.dtsi
View File

@ -549,8 +549,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
<AT91_PIOB 30 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB30 periph A */
AT91_PIOB 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PB31 periph A with pullup */
<AT91_PIOB 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOB 31 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
};

4
arch/arm/boot/dts/sama5d4.dtsi
View File

@ -1461,8 +1461,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
<AT91_PIOB 24 AT91_PERIPH_A AT91_PINCTRL_NONE>, /* conflicts with D14 and TDI */
<AT91_PIOB 25 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* conflicts with D15 and TDO */
<AT91_PIOB 24 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* conflicts with D14 and TDI */
AT91_PIOB 25 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* conflicts with D15 and TDO */
};
};