diff options
| author | Roger Quadros <rogerq@ti.com> | 2015-08-04 18:35:00 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-08-05 13:58:27 +0300 |
| commit | eb157c81d046d01c468df7e27d33563dce413154 (patch) | |
| tree | 50945eeacc36c479133d6791c219928325fc7fa7 /arch/arm/boot/dts/am437x-gp-evm.dts | |
| parent | 50336f5127640b1cc6a84c2a7853774a11e1e3c2 (diff) | |
| download | linux-eb157c81d046d01c468df7e27d33563dce413154.tar.xz | |
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>
Diffstat (limited to 'arch/arm/boot/dts/am437x-gp-evm.dts')
| -rw-r--r-- | arch/arm/boot/dts/am437x-gp-evm.dts | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 3c5985848eff..c7423ed25fd9 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -446,6 +446,36 @@ 0x26c (PIN_OUTPUT | MUX_MODE9) /* spi2_cs0.gpio0_23 SEL_eMMCorNANDn */ >; }; + + emmc_pins_default: emmc_pins_default { + pinctrl-single,pins = < + 0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */ + 0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */ + 0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */ + 0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */ + 0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */ + 0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */ + 0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */ + 0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */ + 0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */ + 0x84 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn2.mmc1_cmd */ + >; + }; + + emmc_pins_sleep: emmc_pins_sleep { + pinctrl-single,pins = < + 0x00 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad0.gpio1_0 */ + 0x04 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad1.gpio1_1 */ + 0x08 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad2.gpio1_2 */ + 0x0c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad3.gpio1_3 */ + 0x10 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad4.gpio1_4 */ + 0x14 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad5.gpio1_5 */ + 0x18 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad6.gpio1_6 */ + 0x1c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad7.gpio1_7 */ + 0x80 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn1.gpio1_30 */ + 0x84 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn2.gpio1_31 */ + >; + }; }; &i2c0 { @@ -651,6 +681,21 @@ cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>; }; +/* eMMC sits on mmc2 */ +&mmc2 { + /* + * When enabling eMMC, disable GPMC/NAND and set + * SelEMMCorNAND to output-high + */ + status = "disabled"; + vmmc-supply = <&evm_v3_3d>; + bus-width = <8>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&emmc_pins_default>; + pinctrl-1 = <&emmc_pins_sleep>; + ti,non-removable; +}; + &mmc3 { status = "okay"; /* these are on the crossbar and are outlined in the @@ -731,6 +776,10 @@ }; &gpmc { + /* + * When enabling GPMC, disable eMMC and set + * SelEMMCorNAND to output-low + */ status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&nand_flash_x8>; |