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ARM: dts: am437x-gp-evm: Add eMMC support
Add eMMC pinmux and mmc2 related bits. We keep the mmc2 controller disabled as it conflits with gpmc/NAND. To enable emmc, simply set mmc2 controller node to "okay" and set the gpmc node to "disabled" and change the SelEMMCorNAND gpio-hog to output-high. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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@ -446,6 +446,36 @@
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0x26c (PIN_OUTPUT | MUX_MODE9) /* spi2_cs0.gpio0_23 SEL_eMMCorNANDn */
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>;
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};
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emmc_pins_default: emmc_pins_default {
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pinctrl-single,pins = <
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0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
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0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
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0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
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0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */
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0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */
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0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */
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0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */
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0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */
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0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
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0x84 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn2.mmc1_cmd */
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>;
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};
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emmc_pins_sleep: emmc_pins_sleep {
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pinctrl-single,pins = <
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0x00 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad0.gpio1_0 */
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0x04 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad1.gpio1_1 */
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0x08 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad2.gpio1_2 */
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0x0c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad3.gpio1_3 */
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0x10 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad4.gpio1_4 */
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0x14 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad5.gpio1_5 */
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0x18 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad6.gpio1_6 */
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0x1c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad7.gpio1_7 */
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0x80 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn1.gpio1_30 */
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0x84 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn2.gpio1_31 */
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>;
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};
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};
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&i2c0 {
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@ -651,6 +681,21 @@
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cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
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};
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/* eMMC sits on mmc2 */
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&mmc2 {
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/*
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* When enabling eMMC, disable GPMC/NAND and set
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* SelEMMCorNAND to output-high
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*/
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status = "disabled";
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vmmc-supply = <&evm_v3_3d>;
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bus-width = <8>;
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&emmc_pins_default>;
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pinctrl-1 = <&emmc_pins_sleep>;
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ti,non-removable;
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};
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&mmc3 {
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status = "okay";
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/* these are on the crossbar and are outlined in the
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@ -731,6 +776,10 @@
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};
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&gpmc {
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/*
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* When enabling GPMC, disable eMMC and set
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* SelEMMCorNAND to output-low
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*/
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&nand_flash_x8>;
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