[PATCH RESEND] ARM: dts: imx6ul: add missing OSC32K_32K_OUT mux mode

[Philipp Zabel]

On Thu, 2018-01-18 at 09:25 +0100, Jörg Krause wrote:
> Hi,
> 
> On Thu, 2018-01-18 at 00:23 +0100, Jörg Krause wrote:
> > RESEND because of missing Ccs. Original patch is [0].
> > 
> > The 32 kHz reference clock on the i.MX6UL(L) can be output by
> > setting the external signal XTALOSC_REF_CLK_32K in one of the
> > following ways [1]:
> > 
> > > ----------------------------------------------------------|
> > > Signal              | Pad             | Mode | Direction |
> > > ----------------------------------------------------------|
> > > XTALOSC_REF_CLK_32K | ENET1_RX_EN     | ALT2 | O         |
> > >                     | GPIO1_IO03      | ALT3 |           |
> > >                     | JTAG_TCK        | ALT6 |           |
> > > ----------------------------------------------------------|
> > 
> > [0] https://patchwork.ozlabs.org/patch/816108/
> > [1] IMX6ULRM, Rev. 1, 04/2016, Table 58-1
> > 
> > Signed-off-by: Jörg Krause <joerg.krause at embedded.rocks>
> > ---
> >  arch/arm/boot/dts/imx6ul-pinfunc.h | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/imx6ul-pinfunc.h b/arch/arm/boot/dts/imx6ul-pinfunc.h
> > index 0034eeb84542..e12654018c23 100644
> > --- a/arch/arm/boot/dts/imx6ul-pinfunc.h
> > +++ b/arch/arm/boot/dts/imx6ul-pinfunc.h
> > @@ -63,6 +63,7 @@
> >  #define MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA		0x0054 0x02e0 0x05f4 2 0
> >  #define MX6UL_PAD_JTAG_TCK__PWM7_OUT			0x0054 0x02e0 0x0000 4 0
> >  #define MX6UL_PAD_JTAG_TCK__GPIO1_IO14			0x0054 0x02e0 0x0000 5 0
> > +#define MX6UL_PAD_JTAG_TCK__OSC32K_32K_OUT		0x0054 0x02e0 0x0000 6 0
> >  #define MX6UL_PAD_JTAG_TCK__SIM2_POWER_FAIL		0x0054 0x02e0 0x0000 8 0
> >  #define MX6UL_PAD_JTAG_TRST_B__SJC_TRSTB		0x0058 0x02e4 0x0000 0 0
> >  #define MX6UL_PAD_JTAG_TRST_B__GPT2_COMPARE3		0x0058 0x02e4 0x0000 1 0
> > @@ -101,6 +102,7 @@
> >  #define MX6UL_PAD_GPIO1_IO03__I2C1_SDA			0x0068 0x02f4 0x05a8 0 1
> >  #define MX6UL_PAD_GPIO1_IO03__GPT1_COMPARE3		0x0068 0x02f4 0x0000 1 0
> >  #define MX6UL_PAD_GPIO1_IO03__USB_OTG2_OC		0x0068 0x02f4 0x0660 2 0
> > +#define MX6UL_PAD_GPIO1_IO03__OSC32K_32K_OUT		0x0068 0x02f4 0x0000 3 0
> >  #define MX6UL_PAD_GPIO1_IO03__USDHC1_CD_B		0x0068 0x02f4 0x0668 4 0
> >  #define MX6UL_PAD_GPIO1_IO03__GPIO1_IO03		0x0068 0x02f4 0x0000 5 0
> >  #define MX6UL_PAD_GPIO1_IO03__CCM_DI0_eXT_CLK		0x0068 0x02f4 0x0000 6 0
> > @@ -316,6 +318,7 @@
> >  #define MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN		0x00cc 0x0358 0x0000 0 0
> >  #define MX6UL_PAD_ENET1_RX_EN__UART5_DCE_RTS		0x00cc 0x0358 0x0640 1 3
> >  #define MX6UL_PAD_ENET1_RX_EN__UART5_DTE_CTS		0x00cc 0x0358 0x0000 1 0
> > +#define MX6UL_PAD_ENET1_RX_EN__OSC32K_32K_OUT		0x00cc 0x0358 0x0000 2 0
> >  #define MX6UL_PAD_ENET1_RX_EN__CSI_DATA18		0x00cc 0x0358 0x0000 3 0
> >  #define MX6UL_PAD_ENET1_RX_EN__FLEXCAN2_TX		0x00cc 0x0358 0x0000 4 0
> >  #define MX6UL_PAD_ENET1_RX_EN__GPIO2_IO02		0x00cc 0x0358 0x0000 5 0
> 
> Just noticed the pin is named REF_CLK_32K instead of OSC32K_32K_OUT in
> the vendor Linux kernel. So better use their pin naming, right?

The i.MX 6UltraLite Applications Processor Reference Manual, Rev. 1
(Chapters 30.5.17, SW_MUX_CTL_PAD_JTAG_TCK SW MUX Control Register, and
30.5.47, SW_MUX_CTL_PAD_ENET1_RX_EN SW MUX Control Register) calls this
OSC32K_32K_OUT.

regards
Philipp