[PATCHv3 1/4] ARM: dts: socfpga: Add Altera I2C Controller to CycloneV
Thor Thayer
thor.thayer at linux.intel.com
Wed Jun 7 13:45:50 PDT 2017
Hi Steffen,
On 06/06/2017 01:40 AM, Steffen Trumtrar wrote:
>
> Hi!
>
> thor.thayer at linux.intel.com writes:
>
>> From: Thor Thayer <thor.thayer at linux.intel.com>
>>
>> Add the Altera I2C Controller to the CycloneV SoCFPGA device tree.
>>
>> Signed-off-by: Thor Thayer <thor.thayer at linux.intel.com>
>> ---
>> v2 Remove altr, from fifo-size.
>> Rename compatible string to "altr,softip-i2c"
>> v3 Add version to commpatible string "altr,softip-i2c-v1.0"
>> ---
>> arch/arm/boot/dts/socfpga.dtsi | 13 ++++++++++---
>> arch/arm/boot/dts/socfpga_cyclone5_socdk.dts | 28 +++++++++++++++++++++++++++-
>> 2 files changed, 37 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
>> index b2674bd..d69c13d 100644
>> --- a/arch/arm/boot/dts/socfpga.dtsi
>> +++ b/arch/arm/boot/dts/socfpga.dtsi
>> @@ -133,6 +133,13 @@
>> #address-cells = <1>;
>> #size-cells = <0>;
>>
>> + clk_0: clk_0 {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <50000000>;
>> + clock-output-names = "clk_0-clk";
>> + };
>> +
>> osc1: osc1 {
>> #clock-cells = <0>;
>> compatible = "fixed-clock";
>> @@ -529,11 +536,11 @@
>> };
>> };
>>
>> - fpga_bridge0: fpga_bridge at ff400000 {
>> + fpga_bridge0: fpga_bridge at ff200000 {
>> compatible = "altr,socfpga-lwhps2fpga-bridge";
>> - reg = <0xff400000 0x100000>;
>> + reg = <0xff200000 0x00200000>;
>> resets = <&rst LWHPS2FPGA_RESET>;
>> - clocks = <&l4_main_clk>;
>> + clocks = <&clk_0>;
>> };
>>
>
> Why this change? This looks wrong and unrelated. The LWHPS2FPGA bridge
> is at 0xff400000, so it is correct the way it is or not?
>
Yes, good point. I was using the LWHPS2FPGA slave bus so I shouldn't
change this one. I'll add the slave version.
Thanks,
Thor
>> fpga_bridge1: fpga_bridge at ff500000 {
>> diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
>> index 155829f..f99576b 100644
>> --- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
>> +++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
>> @@ -68,6 +68,7 @@
>> regulator-min-microvolt = <3300000>;
>> regulator-max-microvolt = <3300000>;
>> };
>> +
>> };
>
> ???
>
Whoops. I should remove the extra space. Thanks!
>
> (...)
>
>
> Best regards,
> Steffen
>
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