linux/arch/arm/boot/dts/bcm28155-ap.dts
Matt Porter a97d67d1c4 ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot
The BCM28155-AP board has a bootloader that expects the camldo1
regulator to be enabled on entry. Currently, the camldo1 regulator
is disabled when no longer in use as is the case during a reboot /
warm reset. This causes the early bootloader to hang upon entry. Add
regulator-always-on to the camldo1 constraint to fix reboot.

Reported-by: Alex Elder <elder@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
Tested-by: Alex Elder <elder@linaro.org>
2014-03-14 12:22:39 -04:00

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/*
* Copyright (C) 2013 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include "bcm11351.dtsi"
/ {
model = "BCM28155 AP board";
compatible = "brcm,bcm28155-ap", "brcm,bcm11351";
memory {
reg = <0x80000000 0x40000000>; /* 1 GB */
};
uart@3e000000 {
status = "okay";
};
i2c@3e016000 {
status="okay";
clock-frequency = <400000>;
};
i2c@3e017000 {
status="okay";
clock-frequency = <400000>;
};
i2c@3e018000 {
status="okay";
clock-frequency = <400000>;
};
i2c@3500d000 {
status="okay";
clock-frequency = <100000>;
pmu: pmu@8 {
reg = <0x08>;
};
};
sdio2: sdio@3f190000 {
non-removable;
max-frequency = <48000000>;
vmmc-supply = <&camldo1_reg>;
vqmmc-supply = <&iosr1_reg>;
status = "okay";
};
sdio4: sdio@3f1b0000 {
max-frequency = <48000000>;
cd-gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
vmmc-supply = <&sdldo_reg>;
vqmmc-supply = <&sdxldo_reg>;
status = "okay";
};
usbotg: usb@3f120000 {
vusb_d-supply = <&usbldo_reg>;
vusb_a-supply = <&iosr1_reg>;
status = "okay";
};
usbphy: usb-phy@3f130000 {
status = "okay";
};
};
#include "bcm59056.dtsi"
&pmu {
compatible = "brcm,bcm59056";
interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
regulators {
camldo1_reg: camldo1 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
sdldo_reg: sdldo {
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
};
sdxldo_reg: sdxldo {
regulator-min-microvolt = <2700000>;
regulator-max-microvolt = <3300000>;
};
usbldo_reg: usbldo {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
iosr1_reg: iosr1 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
};
};