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https://github.com/brain-hackers/u-boot-brain
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f26b260c69
Now that we have the pinctrl driver for Merrifield in place we can make use of it and set I2C#6 pins appropriately. Initial configuration came from the firmware. Which quite likely has been used in the phones, where that is not part of Atom peripheral, is in use. Thus we need to override the leftover. Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
116 lines
2.1 KiB
Plaintext
116 lines
2.1 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2017 Intel Corporation
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*/
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/dts-v1/;
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#include <dt-bindings/gpio/x86-gpio.h>
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#include <dt-bindings/interrupt-router/intel-irq.h>
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/include/ "skeleton.dtsi"
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/include/ "rtc.dtsi"
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/include/ "tsc_timer.dtsi"
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/ {
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model = "Intel Edison";
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compatible = "intel,edison";
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aliases {
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serial0 = &serial0;
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};
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chosen {
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stdout-path = &serial0;
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};
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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compatible = "cpu-x86";
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reg = <0>;
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intel,apic-id = <0>;
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};
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cpu@1 {
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device_type = "cpu";
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compatible = "cpu-x86";
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reg = <1>;
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intel,apic-id = <2>;
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};
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};
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pci {
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compatible = "pci-x86";
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#address-cells = <3>;
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#size-cells = <2>;
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u-boot,dm-pre-reloc;
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ranges = <0x02000000 0x0 0x80000000 0x80000000 0 0x40000000
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0x42000000 0x0 0xc0000000 0xc0000000 0 0x20000000
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0x01000000 0x0 0x2000 0x2000 0 0xe000>;
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};
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serial0: serial@ff010180 {
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compatible = "intel,mid-uart";
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reg = <0xff010180 0x100>;
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reg-shift = <0>;
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clock-frequency = <29491200>;
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current-speed = <115200>;
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};
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emmc: mmc@ff3fc000 {
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compatible = "intel,sdhci-tangier";
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reg = <0xff3fc000 0x1000>;
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};
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/*
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* FIXME: For now U-Boot DM model doesn't allow to power up this controller.
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* Enabling it will make U-Boot hang.
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*
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sdcard: mmc@ff3fa000 {
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compatible = "intel,sdhci-tangier";
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reg = <0xff3fa000 0x1000>;
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};
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*/
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pmu: power@ff00b000 {
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compatible = "intel,pmu-mid";
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reg = <0xff00b000 0x1000>;
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};
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scu: ipc@ff009000 {
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compatible = "intel,scu-ipc";
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reg = <0xff009000 0x1000>;
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};
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reset {
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compatible = "intel,reset-tangier";
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u-boot,dm-pre-reloc;
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};
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pinctrl {
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compatible = "intel,pinctrl-tangier";
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reg = <0xff0c0000 0x8000>;
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/*
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* Initial configuration came from the firmware.
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* Which quite likely has been used in the phones, where I2C #8,
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* that is not part of Atom peripheral, is in use.
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* Thus we need to override the leftover.
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*/
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i2c6_scl@0 {
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pad-offset = <111>;
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mode-func = <1>;
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protected;
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};
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i2c6_sda@0 {
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pad-offset = <112>;
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mode-func = <1>;
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protected;
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};
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};
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};
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