> -----Original Message----- > From: Stefan Agner [mailto:ste...@agner.ch] > Sent: Thursday, May 05, 2016 3:12 PM > To: shawn...@kernel.org > Cc: ker...@pengutronix.de; frank...@freescale.com; > aalo...@freescale.com; devicet...@vger.kernel.org; linux-arm- > ker...@lists.infradead.org; linux-kernel@vger.kernel.org; Stefan Agner > <ste...@agner.ch> > Subject: [PATCH] ARM: dts: imx7d-pinfunc: add input mux for UART2 RX DTE > mode > > Add input mux for UART2 RX in DTE mode. This allows to use the pad > UART2_TX_DATA_ALT0 as UART2 RX. This particular input select seems to be > missing in current reference manuals (Rev. B), but when looking at the tables > and other UART input select registers (e.g. UART3) it seems naturally that > this > input mux register also has a fourth pad option for UART2_TX_DATA_ALT0. It > has also been proven to be required to use UART2 in DTE mode and the > particular pads on the Colibri iMX7 platform. > > Signed-off-by: Stefan Agner <ste...@agner.ch>
Acked-by: Frank Li <frank...@nxp.com> > --- > arch/arm/boot/dts/imx7d-pinfunc.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/imx7d-pinfunc.h b/arch/arm/boot/dts/imx7d- > pinfunc.h > index eeda783..3f9f0d9 100644 > --- a/arch/arm/boot/dts/imx7d-pinfunc.h > +++ b/arch/arm/boot/dts/imx7d-pinfunc.h > @@ -594,7 +594,7 @@ > #define MX7D_PAD_UART2_RX_DATA__GPIO4_IO2 0x0130 > 0x03A0 0x0000 0x5 0x0 > #define MX7D_PAD_UART2_RX_DATA__ENET2_MDIO 0x0130 > 0x03A0 0x0000 0x6 0x0 > #define MX7D_PAD_UART2_TX_DATA__UART2_DCE_TX 0x0134 > 0x03A4 0x0000 0x0 0x0 > -#define MX7D_PAD_UART2_TX_DATA__UART2_DTE_RX 0x0134 > 0x03A4 0x0000 0x0 0x0 > +#define MX7D_PAD_UART2_TX_DATA__UART2_DTE_RX 0x0134 > 0x03A4 0x06FC 0x0 0x3 > #define MX7D_PAD_UART2_TX_DATA__I2C2_SDA 0x0134 > 0x03A4 0x05E0 0x1 0x0 > #define MX7D_PAD_UART2_TX_DATA__SAI3_RX_DATA0 0x0134 > 0x03A4 0x06C8 0x2 0x0 > #define MX7D_PAD_UART2_TX_DATA__ECSPI1_RDY 0x0134 > 0x03A4 0x0000 0x3 0x0 > -- > 2.8.2
