Thread (9 messages) 9 messages, 3 authors, 2012-08-13

RE: [PATCH RESEND v2 1/2] arm/dts: Add AM33XX basic pinctrl support

From: AnilKumar, Chimata <hidden>
Date: 2012-08-07 08:50:44
Also in: linux-arm-kernel, linux-omap

Hi Tony,

On Tue, Aug 07, 2012 at 13:13:48, Tony Lindgren wrote:
* AnilKumar, Chimata [off-list ref] [120731 06:37]:
quoted
Hi Peter,

On Fri, Jul 27, 2012 at 14:40:52, Ujfalusi, Peter wrote:
quoted
Hi,

On 07/24/2012 06:45 PM, AnilKumar Ch wrote:
quoted
Adds basic pinctrl support for AM33XX family of devices. This patch
is based on the pinctrl-simple driver submitted by Tony Lindgren's
here: http://lwn.net/Articles/496075/

Signed-off-by: AnilKumar Ch <redacted>
---
 arch/arm/boot/dts/am33xx.dtsi |    9 +++++++++
 1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 59509c4..9b974dc 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -40,6 +40,15 @@
 		};
 	};
 
+	am3358_pinmux: pinmux@44E10800 {
+		compatible = "pinctrl-single";
+		reg = <0x44E10800 0x0338>;
I'm just curious about the size here: how it ended up as 0x0338?
While looking at the TRM of AM335x I can come up with 0x0238 (0x44e10800 -
0x44e10a38), but I don't see any sings of the remaining 0x0100 to be
documented at least.
No, pinmux registers are available till 0x44E10B38, look at AM335x latest TRM
or pinmux utility (we cannot find the exact offsets but pins we can find after
0x0A38, conf_ddr_resetn) at http://www.ti.com/tool/pinmuxtool
If you have a hole inbetween the registers it sounds like you also have core and
wkup domains? In that case those should be set up as separate controllers as other
SCM registers may be inbetween those domains.
In case of AM33XX we have only one padconf domain and it do not have any holes
in between.

Regards
AnilKumar
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