[PATCH 3/6] ARM: dts: imx25: substitute NO_PAD_CTL by the respective reset value

[Uwe Kleine-König]

Hello Fabio,

On Sun, Jul 10, 2016 at 04:10:12PM -0300, Fabio Estevam wrote:
> On Sun, Jul 10, 2016 at 7:07 AM, Uwe Kleine-König <uwe at kleine-koenig.org> wrote:
> 
> >  arch/arm/boot/dts/imx25-eukrea-cpuimx25.dtsi       | 18 +++----
> >  .../imx25-eukrea-mbimxsd25-baseboard-cmo-qvga.dts  |  2 +-
> > diff --git a/arch/arm/boot/dts/imx25-pdk.dts b/arch/arm/boot/dts/imx25-pdk.dts
> > index c823e45a7a01..643d083951ef 100644
> > --- a/arch/arm/boot/dts/imx25-pdk.dts
> > +++ b/arch/arm/boot/dts/imx25-pdk.dts
> 
> >         pinctrl_fec: fecgrp {
> >                 fsl,pins = <
> > -                       MX25_PAD_FEC_MDC__FEC_MDC               0x80000000
> > +                       MX25_PAD_FEC_MDC__FEC_MDC               0x00000060
> >                         MX25_PAD_FEC_MDIO__FEC_MDIO             0x400001e0
> > -                       MX25_PAD_FEC_TDATA0__FEC_TDATA0         0x80000000
> > -                       MX25_PAD_FEC_TDATA1__FEC_TDATA1         0x80000000
> > -                       MX25_PAD_FEC_TX_EN__FEC_TX_EN           0x80000000
> > -                       MX25_PAD_FEC_RDATA0__FEC_RDATA0         0x80000000
> > -                       MX25_PAD_FEC_RDATA1__FEC_RDATA1         0x80000000
> > -                       MX25_PAD_FEC_RX_DV__FEC_RX_DV           0x80000000
> > -                       MX25_PAD_FEC_TX_CLK__FEC_TX_CLK         0x1c0
> > -                       MX25_PAD_A17__GPIO_2_3                  0x80000000
> > -                       MX25_PAD_D12__GPIO_4_8                  0x80000000
> > +                       MX25_PAD_FEC_TDATA0__FEC_TDATA0         0x00000060
> > +                       MX25_PAD_FEC_TDATA1__FEC_TDATA1         0x00000060
> > +                       MX25_PAD_FEC_TX_EN__FEC_TX_EN           0x00000060
> > +                       MX25_PAD_FEC_RDATA0__FEC_RDATA0         0x000000c1
> > +                       MX25_PAD_FEC_RDATA1__FEC_RDATA1         0x000000c0
> > +                       MX25_PAD_FEC_RX_DV__FEC_RX_DV           0x000000c0
> > +                       MX25_PAD_FEC_TX_CLK__FEC_TX_CLK         0x000001c0
> > +                       MX25_PAD_A17__GPIO_2_3                  0x00000000
> > +                       MX25_PAD_D12__GPIO_4_8                  0x000000a1
> 
> Looking at the mx25pdk U-boot source code we see that FEC pins are not
> configured as per the default power-on reset values, so this changes
> the behavior.
> 
> >         pinctrl_i2c1: i2c1grp {
> >                 fsl,pins = <
> > -                       MX25_PAD_I2C1_CLK__I2C1_CLK             0x80000000
> > -                       MX25_PAD_I2C1_DAT__I2C1_DAT             0x80000000
> > +                       MX25_PAD_I2C1_CLK__I2C1_CLK             0x000000a8
> > +                       MX25_PAD_I2C1_DAT__I2C1_DAT             0x000000a8
> 
> Same happens with I2C pins.
> 
> To stay in the safe side I would only change the pins that have GPIO
> functionality in this patch.
> 
> Then we could later change each 0x80000000 occurrance by replacing it
> with the actual PAD register value instead of the power on defaults.

Why later?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |