| Message ID | 20231030063108.1242981-3-n-yadav@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add eMMC support for AM62a SK | expand |
On 10/30/23 1:31 AM, Nitin Yadav wrote: > Add support for 32GB eMMC card on AM62A7 SK. Includes adding mmc0 > pins settings. Add mmc0 alias for sdhci0 in k3-am62a7-sk.dts. > This looks good to me. Although should it be explained why we are including pinmux for MMC0? Reviewed-by: Judith Mendez <jm@ti.com> > Signed-off-by: Nitin Yadav <n-yadav@ti.com> > --- > arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > index cff283c75f8e..c6f144d91734 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > @@ -20,6 +20,7 @@ aliases { > serial0 = &wkup_uart0; > serial2 = &main_uart0; > serial3 = &main_uart1; > + mmc0 = &sdhci0; > mmc1 = &sdhci1; > }; > > @@ -172,6 +173,22 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */ > >; > }; > > + main_mmc0_pins_default: main-mmc0-default-pins { > + pinctrl-single,pins = < > + AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */ > + AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLKLB */ > + AM62AX_IOPAD(0x21c, PIN_INPUT, 0) /* (AB1) MMC0_CLK */ > + AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */ > + AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */ > + AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */ > + AM62AX_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (Y4) MMC0_DAT3 */ > + AM62AX_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (AB2) MMC0_DAT4 */ > + AM62AX_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (AC1) MMC0_DAT5 */ > + AM62AX_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (AD2) MMC0_DAT6 */ > + AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */ > + >; > + }; > + > main_mmc1_pins_default: main-mmc1-default-pins { > pinctrl-single,pins = < > AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */ > @@ -361,3 +378,11 @@ cpsw3g_phy0: ethernet-phy@0 { > ti,min-output-impedance; > }; > }; > + > +&sdhci0 { > + status = "okay"; > + pinctrl-names = "default"; > + pinctrl-0 = <&main_mmc0_pins_default>; > + ti,driver-strength-ohm = <50>; > + disable-wp; > +};
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index cff283c75f8e..c6f144d91734 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -20,6 +20,7 @@ aliases { serial0 = &wkup_uart0; serial2 = &main_uart0; serial3 = &main_uart1; + mmc0 = &sdhci0; mmc1 = &sdhci1; }; @@ -172,6 +173,22 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */ >; }; + main_mmc0_pins_default: main-mmc0-default-pins { + pinctrl-single,pins = < + AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */ + AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLKLB */ + AM62AX_IOPAD(0x21c, PIN_INPUT, 0) /* (AB1) MMC0_CLK */ + AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */ + AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */ + AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */ + AM62AX_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (Y4) MMC0_DAT3 */ + AM62AX_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (AB2) MMC0_DAT4 */ + AM62AX_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (AC1) MMC0_DAT5 */ + AM62AX_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (AD2) MMC0_DAT6 */ + AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */ + >; + }; + main_mmc1_pins_default: main-mmc1-default-pins { pinctrl-single,pins = < AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */ @@ -361,3 +378,11 @@ cpsw3g_phy0: ethernet-phy@0 { ti,min-output-impedance; }; }; + +&sdhci0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_mmc0_pins_default>; + ti,driver-strength-ohm = <50>; + disable-wp; +};
Add support for 32GB eMMC card on AM62A7 SK. Includes adding mmc0 pins settings. Add mmc0 alias for sdhci0 in k3-am62a7-sk.dts. Signed-off-by: Nitin Yadav <n-yadav@ti.com> --- arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)