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Yes, the usb is workable.
The 0x1001021c is the USB control register from samsung datasheet(12.2)
Thank you. I will check my code to know why it doesn't work.
I didn't notice your work in mail list before.
But I think we shall separate hw:1306 and hw:1308 of tiny4412.
As those external devices have some different.
Thank you again
于 2013年12月01日 21:42, randy 写道:
> But do you notice the mail Tomasz sent to me before? I don't know
> whether the power control reg address of your code is correct. As
> the status is disable in your code, so shall I change it to okay
> When I test it? I will do a test later. Thank you
> ==========================================================
>> + ranges; + + clocks = <&clock 2>, <&clock 305>; + clock-names
>> = "xusbxti", "otg"; + usbphy-sys { + /* USB device and host
>> PHY_CONTROL registers */ + reg = <0x10020704 0x8>;
> reg should be <0x10020704 0xc 0x1001021c 0x4> on Exynos4x12.
>
> 于 2013年12月01日 20:49, kasim ling 写道:
>> Hi, Randy, I'm also working with FriendlyARM Tiny4412 board and
>> I've had a working 3.13-rc2-based kernel tree with USB host
>> function working. You can refer to my commit at
>> https://github.com/kasimling/linux/commit/a452fb006c657de5c038f04d8f610567580ea99c.
>
>>
>
> You can also check out branch "tiny4412_3.13-dev" of repository
>> "https://github.com/kasimling/linux.git";.
>
>
>> BR, Alex
>
>
>> On Thu, Nov 28, 2013 at 11:29 PM, randy <lxr1234@xxxxxxxxxxx
>> <mailto:lxr1234@xxxxxxxxxxx>> wrote:
>
>> Hello Tomasz Figa 于 2013年11月28日 22:37, Tomasz Figa 写道:
>>> Hi Randy,
>
>>> On Thursday 28 of November 2013 22:00:41 randy wrote:
>>>> I have development board whose SoC is exynos4412, I try to
>>>> enable the usb in it but I failed. I saw the document
>>>> Documentation/devicetree/bindings/usb/samsung-usbphy.txt,
>>>> does it mean that the usb driver is not done? And about that
>>>> document, in samsung datasheet(32.8.2), the address reg
>>>> 0x125B_0000 + 32bits contains hsic1, hsic0, phy1 and phy0's
>>>> power control. And in 0x1002_0704 + 3 * 32 bits, it contains
>>>> usb_phy, hsic1_phy and hsic2_phy control(8.8.1.27). So I
>>>> doubt the documents.
>>>>
>>>> Here is the log and dts
>>>> ===========================log================================
>>>>
>>>>
[ 1.000000] ehci_hcd: USB 2.0 'Enhanced' Host Controller
>>>> (EHCI) Driver [ 1.010000] ehci-exynos: EHCI EXYNOS driver
>>>> [ 1.015000] unable to find transceiver of type USB2 PHY [
>>>> 1.020000] exynos-ehci 12580000.ehci: no platform data or
>>>> transceiver defined [ 1.025000] platform 12580000.ehci:
>>>> Driver exynos-ehci requests probe deferral
>
>>> First of all, do you have CONFIG_SAMSUNG_USB2PHY enabled in
>>> your kernel config? Also, see below.
>
>>>>
>> Yes, I have
>
>> ayaka@kotomi:~/workplace/exynos4412/kernel/linux-mainline$ cat
>> ../build-linux-mainline/.config|grep CONFIG_SAMSUNG_USB2PHY
>> CONFIG_SAMSUNG_USB2PHY=y
>>>> ================================dts==================================
>>>>
>>>>
>
>>>>
>>>>
> diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts
>>>> b/arch/arm/boot/dts/exynos4412-tiny4412.dts new file mode
>>>> 100644 index 0000000..c8d4cfa --- /dev/null +++
>>>> b/arch/arm/boot/dts/exynos4412-tiny4412.dts @@ -0,0 +1,176 @@
>>>> +/* + * Hardkernel's Exynos4412 based tiny4412 1306 board
>>>> device tree source + * + * Copyright (c) 2013 Tomoya
>>>> Gitsufuki <ayaka@xxxxxxxxxxxxxxxx
>>>> <mailto:ayaka@xxxxxxxxxxxxxxxx>> + * + *
>> Device tree source file for
>>>> Friendyarm tiny4412 1306 board which is based on + *
>>>> Samsung's Exynos4412 SoC. + * + * This program is free
>>>> software; you can redistribute it and/or modify + * it under
>>>> the terms of the GNU General Public License version 2 as + *
>>>> published by the Free Software Foundation. +*/ + +/dts-v1/;
>>>> +#include "exynos4412.dtsi" + +/ { + model = "Friendly Arm
>>>> Tiny4412 1306 board based on Exynos4412"; + compatible
>>>> = "friendlyarm,tiny4412-1306", "samsung,exynos4412"; + +
>> memory { +
>>>> reg = <0x40000000 0x40000000>; + }; + + chosen { +
>>>>
>> bootargs
>>>> ="root=/dev/mmcblk0p1 rootfstype=ext4 rw
>>>> console=ttySAC0,115200 init=/sbin/init"; + }; + + leds { +
>>>> compatible =
>> "gpio-leds"; +
>>>> led1 { + label = "led1:heart"; +
>>>>
>> gpios = <&gpm4 0 1>; +
>>>> default-state = "on"; +
>> linux,default-trigger = "heartbeat"; +
>>>> }; + led2 { + label =
>>>> "led2:mmc0";
>> + gpios = <&gpm4 1 1>; +
>>>> default-state = "on"; +
>> linux,default-trigger = "mmc0"; + };
>>>> + + }; + + regulators { + compatible =
>>>> "simple-bus"; + #address-cells = <1>; + +
>>>> vemmc_reg: regulator-0 { + compatible = "regulator-fixed"; +
>>>> regulator-name = "VMEM_VDD_2.8V"; + regulator-min-microvolt
>>>> =
>> <2800000>; +
>>>> regulator-max-microvolt = <2800000>; + gpio
>> = <&gpk0 2 0>; +
>>>> enable-active-high; + }; + + }; + + /* +
>> mshc@12550000 { +
>>>> #address-cells = <1>; + #size-cells = <0>; +
>>>>
>> pinctrl-0 =
>>>> <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>; + pinctrl-names =
>>>> "default"; + status = "okay"; + + vmmc-supply
>> = <&vemmc_reg>; +
>>>> clocks = <&clock 301>, <&clock 149>; + clocks-name
>> = "dwmci",
>>>> "sclk_dwmci"; + clock-frequency = <400000000>; +
>>>> +
>>>>
>> num-slots =
>>>> <1>; + supports-highspeed; +
>>>> broken-cd; +
>> fifo-depth =
>>>> <0x80>; + card-detect-delay = <200>; +
>>>> samsung,dw-mshc-sdr-timing = <2 3>; +
>> samsung,dw-mshc-ddr-timing
>>>> = <1 2>; + + slot@0 { + reg =
>>>> <0>; +
>> bus-width = <8>; + +
>>>> }; + }; + */ + + rtc@10070000 { + status
>>>> =
>> "okay"; + }; + +
>>>> sdhci@12530000 { + bus-width = <4>; +
>> pinctrl-0 = <&sd2_clk
>>>> &sd2_cmd &sd2_bus4 &sd2_cd>; + pinctrl-names =
>> "default"; +
>>>> status = "okay"; + }; + sdhci@1254000 { +
>> bus-width = <4>; +
>>>> pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4 &sd3_cd>; +
>>>> pinctrl-names = "default"; + status = "okay"; +
>>>> }; +
>> + usb_phy:
>>>> usbphy@125B0000 { + #address-cells = <1>; +
>> #size-cells = <1>;
>>>> + compatible = "samsung,exynos4210-usbphy";
>
>>> This is not the compatible listed in [1]. Moreover, it looks
>>> like the compatible string for Exynos4x12 is not documented.
>>> According to driver code, it should be
>>> "samsung,exynos4x12-usb2phy".
>
>>> [1] Documentation/devicetree/bindings/usb/samsung-usbphy.txt
>
>>>> + reg = <0x12B0000 0x100>;
>
>>> The address should be 0x125B0000.
>
>>>> + ranges; + + clocks = <&clock 2>,
>>>> <&clock
>> 305>; + clock-names
>>>> = "xusbxti", "otg"; + usbphy-sys { +
>>>>
>> /* USB device and host
>>>> PHY_CONTROL registers */ + reg =
>>>> <0x10020704 0x8>;
>
>>> reg should be <0x10020704 0xc 0x1001021c 0x4> on Exynos4x12.
>
>>> In general, this PHY driver is only preliminary and there is
>>> already work going on a completely new PHY driver that will
>>> cover full USB functionality present on Exynos 4 and should be
>>> much more reliable.
>
>>> The currently available one might or might not work for you,
>>> even after correcting the things I pointed above.
>
>>> Best regards, Tomasz
>
>
>
>> I have follow you, yes it doesn't work. I have tested it many
>> times before, the first address problem may is modified in one
>> test. So I shall wait the driver to be ready? Thank you. -- To
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>
>
>
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