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ARM: dts: add SMSC ethernet on the APQ8060 Dragonboard

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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 <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Linus Walleij 2016-10-25 00:22:20 +02:00 committed by Andy Gross
parent e3770594c4
commit 4c52ffc708
1 changed files with 119 additions and 0 deletions
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119
arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
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@ -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 = <PM8058_GPIO_S3>;
};
};
dragon_bmp085_gpios: bmp085-gpios {
pinconf {
pins = "gpio16";
@ -238,6 +300,14 @@
power-source = <PM8058_GPIO_S3>;
};
};
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