Op 6 sep. 2013, om 10:51 heeft Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx> het volgende geschreven:
>
> Op 6 sep. 2013, om 09:10 heeft Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx> het volgende geschreven:
>
>>
>> Op 6 sep. 2013, om 08:57 heeft George Cherian <george.cherian@xxxxxx> het volgende geschreven:
>>
>>> On 9/6/2013 12:03 PM, Koen Kooi wrote:
>>>> The BeagleBone Black is basically a regular BeagleBone with eMMC and HDMI added,
>>>> so create a common dtsi both can use. MMC support for AM335x still isn't in, so
>>>> only the LDO change has been added.
>>>>
>>>> Signed-off-by: Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx>
>>>> ---
>>>> .../{am335x-bone.dts => am335x-bone-common.dtsi} | 3 -
>>>> arch/arm/boot/dts/am335x-bone.dts | 256 +--------------------
>>>> arch/arm/boot/dts/am335x-boneblack.dts | 18 ++
>>>> 3 files changed, 19 insertions(+), 258 deletions(-)
>>>> copy arch/arm/boot/dts/{am335x-bone.dts => am335x-bone-common.dtsi} (99%)
>>>> create mode 100644 arch/arm/boot/dts/am335x-boneblack.dts
>>> How did you test am335x-boneblack.dtb? where are the Makefile changes for boneblack?
>>
>> Ah, I missed the makefile in my commit. I have a bunch of other patches on top to make more stuff work.
>>
>> [..]
>>
>>>>
>>>> --- /dev/null
>>>> +++ b/arch/arm/boot/dts/am335x-boneblack.dts
>>>> @@ -0,0 +1,18 @@
>>>> +/*
>>>> + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
>>>> + *
>>>> + * This program is free software; you can redistribute it and/or modify
>>>> + * it under the terms of the GNU General Public License version 2 as
>>>> + * published by the Free Software Foundation.
>>>> + */
>>>> +/dts-v1/;
>>>> +
>>>> +#include "am33xx.dtsi"
>>> Why cant we add am33xx.dtsi in am335x-bone-common.dtsi ?
>>
>> That didn't work when I tried it. It did work before the preprocessor changes when using /include/
>>
>>>> +#include "am335x-bone-common.dtsi"
>>>> +
>>>> +&ldo3_reg {
>>>> + regulator-min-microvolt = <1800000>;
>>>> + regulator-max-microvolt = <1800000>;
>>>> + regulator-always-on;
>>>> +};
>>>> +
>>> With this ldo values mmc was not working for me on Boneblack.
>>> got it working with
>>>
>>> &ldo3_reg {
>>> regulator-min-microvolt = <1800000>;
>>> regulator-max-microvolt = <3300000>;
>>> regulator-always-on;
>>> };
>>
>> That LDO is shared, the other consumer will get fried if you use 3.3V. I forget if it's DDR3 or HDMI.
>
> On the black the LDOs changed, so for mmc (which (*$)@()$@) still isn't in mainline) you need:
>
> diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
> index e76d575..ae90a30 100644
> --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
> +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
> @@ -362,6 +362,13 @@
> regulator-always-on;
> };
> };
> +
> + vmmcsd_fixed: fixedregulator@0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vmmcsd_fixed";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> };
>
> &cpsw_emac0 {
> diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
> index b4237fc..e092a61 100644
> --- a/arch/arm/boot/dts/am335x-boneblack.dts
> +++ b/arch/arm/boot/dts/am335x-boneblack.dts
> @@ -16,7 +16,12 @@
> regulator-always-on;
> };
>
> -&mmc2 {
> +&mmc1 {
> + vmmc-supply = <&vmmcsd_fixed>;
> +};
> +
> +&mmc2 {
> + vmmc-supply = <&vmmcsd_fixed>;
> pinctrl-names = "default";
> pinctrl-0 = <&emmc_pins>;
> vmmc-supply = <&ldo3_reg>;
And links to all the patches:
Card-detect fix: https://github.com/koenkooi/linux/commit/c3c87f330812275ce6aa791e2a81f4c124fe981b
Add eMMC DT node: https://github.com/koenkooi/linux/commit/22459b61a7e80e05ab1cd02b9ec0a4467bf9fa4b
Fix mmc regulator: https://github.com/koenkooi/linux/commit/8007217893b7d809782e08fa1f0d56b1083ec00d
As soon as TI gets their act together and the EDMA/MMC patchset is in Linus' tree I'll rebase and submit the above properly.
regards,
Koen--
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