From 4c52ffc708c90b2985f941db5490145530e4df69 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 25 Oct 2016 00:22:20 +0200 Subject: [PATCH] ARM: dts: add SMSC ethernet on the APQ8060 Dragonboard The SMSC9112 ethernet controller is connected to chip select 2 on the EBI2 bus on the APQ8060 Dragonboard. We set this up by activating EBI2, creating a chipselect entry as a subnode, and then putting the ethernet controller in a subnode of the chipselect. After the chipselect is configured, the SMSC device will be instantiated. Signed-off-by: Linus Walleij Signed-off-by: Andy Gross --- arch/arm/boot/dts/qcom-apq8060-dragonboard.dts | 119 +++++++++++++++++++++++++ 1 file changed, 119 insertions(+) diff --git a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts index 6c00383..4b8872c 100644 --- a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts +++ b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts @@ -51,6 +51,29 @@ regulator-boot-on; }; + /* GPIO controlled ethernet power regulator */ + dragon_veth: xc622a331mrg { + compatible = "regulator-fixed"; + regulator-name = "XC6222A331MR-G"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vph>; + gpio = <&pm8058_gpio 40 GPIO_ACTIVE_HIGH>; + enable-active-high; + pinctrl-names = "default"; + pinctrl-0 = <&dragon_veth_gpios>; + regulator-always-on; + }; + + /* VDDvario fixed regulator */ + dragon_vario: nds332p { + compatible = "regulator-fixed"; + regulator-name = "NDS332P"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&pm8058_s3>; + }; + /* This is a levelshifter for SDCC5 */ dragon_vio_txb: txb0104rgyr { compatible = "regulator-fixed"; @@ -167,6 +190,36 @@ bias-pull-up; }; }; + + dragon_ebi2_pins: ebi2 { + /* + * Pins used by EBI2 on the Dragonboard, actually only + * CS2 is used by a real peripheral. CS0 is just + * routed to a test point. + */ + mux0 { + pins = + /* "gpio39", CS1A_N this is not good to mux */ + "gpio40", /* CS2A_N */ + "gpio134"; /* CS0_N testpoint TP29 */ + function = "ebi2cs"; + }; + mux1 { + pins = + /* EBI2_ADDR_7 downto EBI2_ADDR_0 address bus */ + "gpio123", "gpio124", "gpio125", "gpio126", + "gpio127", "gpio128", "gpio129", "gpio130", + /* EBI2_DATA_15 downto EBI2_DATA_0 data bus */ + "gpio135", "gpio136", "gpio137", "gpio138", + "gpio139", "gpio140", "gpio141", "gpio142", + "gpio143", "gpio144", "gpio145", "gpio146", + "gpio147", "gpio148", "gpio149", "gpio150", + "gpio151", /* EBI2_OE_N */ + "gpio153", /* EBI2_ADV */ + "gpio157"; /* EBI2_WE_N */ + function = "ebi2"; + }; + }; }; qcom,ssbi@500000 { @@ -201,6 +254,15 @@ }; gpio@150 { + dragon_ethernet_gpios: ethernet-gpios { + pinconf { + pins = "gpio7"; + function = "normal"; + input-enable; + bias-disable; + power-source = ; + }; + }; dragon_bmp085_gpios: bmp085-gpios { pinconf { pins = "gpio16"; @@ -238,6 +300,14 @@ power-source = ; }; }; + dragon_veth_gpios: veth-gpios { + pinconf { + pins = "gpio40"; + function = "normal"; + bias-disable; + drive-push-pull; + }; + }; }; led@48 { @@ -322,6 +392,55 @@ }; }; + external-bus@1a100000 { + /* The EBI2 will instantiate first, then populate its children */ + status = "ok"; + pinctrl-names = "default"; + pinctrl-0 = <&dragon_ebi2_pins>; + + /* + * An on-board SMSC LAN9221 chip for "debug ethernet", + * which is actually just an ordinary ethernet on the + * EBI2. This has a 25MHz chrystal next to it, so no + * clocking is needed. + */ + ethernet-ebi2@2,0 { + compatible = "smsc,lan9221", "smsc,lan9115"; + reg = <2 0x0 0x100>; + /* + * GPIO7 has interrupt 198 on the PM8058 + * The second interrupt is the PME interrupt + * for network wakeup, connected to the TLMM. + */ + interrupts-extended = <&pmicintc 198 IRQ_TYPE_EDGE_FALLING>, + <&tlmm 29 IRQ_TYPE_EDGE_RISING>; + reset-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>; + vdd33a-supply = <&dragon_veth>; + vddvario-supply = <&dragon_vario>; + pinctrl-names = "default"; + pinctrl-0 = <&dragon_ethernet_gpios>; + phy-mode = "mii"; + reg-io-width = <2>; + smsc,force-external-phy; + /* IRQ on edge falling = active low */ + smsc,irq-active-low; + smsc,irq-push-pull; + + /* + * SLOW chipselect config + * Delay 9 cycles (140ns@64MHz) between SMSC + * LAN9221 Ethernet controller reads and writes + * on CS2. + */ + qcom,xmem-recovery-cycles = <0>; + qcom,xmem-write-hold-cycles = <3>; + qcom,xmem-write-delta-cycles = <31>; + qcom,xmem-read-delta-cycles = <28>; + qcom,xmem-write-wait-cycles = <9>; + qcom,xmem-read-wait-cycles = <9>; + }; + }; + rpm@104000 { /* * Set up of the PMIC RPM regulators for this board -- 2.7.4