Re: [PATCH 5/9] ARM: at91/dt: add mmc0 slot0 support to at91rm9200ekboard
From: boris brezillon
Date: Wed Nov 20 2013 - 11:15:47 EST
On 20/11/2013 15:59, Jean-Christophe PLAGNIOL-VILLARD wrote:
On 13:06 Wed 28 Aug , Boris BREZILLON wrote:
Add slot0 of mmc0 pinctrl pins definitions:
- detect pin
- write protect pin
- enable slot0 pin: this pin is connected to an external switch which
enable mmc0 slot0 or spi dataflash connected to cs3
The mmc0 device is not enabled, as it depends on the choosen functionnality
(spi cs3 or mmc0 slot0).
Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
---
arch/arm/boot/dts/at91rm9200ek.dts | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/arch/arm/boot/dts/at91rm9200ek.dts b/arch/arm/boot/dts/at91rm9200ek.dts
index f2d6d79..2bad423 100644
--- a/arch/arm/boot/dts/at91rm9200ek.dts
+++ b/arch/arm/boot/dts/at91rm9200ek.dts
@@ -39,6 +39,23 @@
atmel,pins = <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_MULTI_DRIVE>;
};
};
+
+ mmc0 {
+ pinctrl_mmc0_slot0_detect: mmc0_slot0_detect-0 {
+ atmel,pins =
+ <AT91_PIOB 27 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+
+ pinctrl_mmc0_slot0_write_protect: mmc0_slot0_write_protect-0 {
+ atmel,pins =
+ <AT91_PIOA 17 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_mmc0_slot0_switch: mmc0_slot0_switch-0 {
+ atmel,pins =
+ <AT91_PIOB 22 AT91_PERIPH_GPIO (AT91_PINCTRL_OUTPUT | AT91_PINCTRL_OUTPUT_VAL(1))>;
+ };
nack this is a regulator the pinctrl API is not done for gpio default value
I know this can be represented as a regulator, but looking at the
datasheet, this looks more
like a switch than a regulator.
Anyway, why didn't you told me that when I proposed the OUTPUT support
for at91 pinctrl driver ?
And BTW pinctrl OUTPUT config is already supported by some pinctrl drivers
(
http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt#L159).
+ };
};
dbgu: serial@fffff200 {
@@ -84,6 +101,24 @@
reg = <0>;
};
};
+
+ mmc0: mmc@fffb4000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-0 = <&pinctrl_mmc0_clk
+ &pinctrl_mmc0_slot0_cmd_dat0
+ &pinctrl_mmc0_slot0_dat1_3
+ &pinctrl_mmc0_slot0_detect
+ &pinctrl_mmc0_slot0_write_protect
+ &pinctrl_mmc0_slot0_switch>;
+
+ slot0: slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ cd-gpios = <&pioB 27 GPIO_ACTIVE_HIGH>;
+ wp-gpios = <&pioA 17 GPIO_ACTIVE_HIGH>;
+ };
+ };
};
usb0: ohci@00300000 {
--
1.7.9.5
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