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于 2013年11月26日 08:41, Tomasz Figa 写道:
> On Sunday 24 of November 2013 22:18:46 Olof Johansson wrote:
>> Hi,
>>
>> On Sun, Nov 24, 2013 at 4:07 AM, randy <lxr1...@hotmail.com>
>> wrote:
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>>>
>>> After pull the merge of 3.13-rc1, the dw_mmc-exynos will make
>>> the boot stock.In 3.13, it is just stocked udev in 3.13 and
>>> makse udev timeout but kernel report the emmc device is found.
>>>
>>> And in the
>>> Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt I saw
>>> that it is need to define which gpio ports that a emmc slot
>>> use, but when I watched others dts, they use pinctrl, which is
>>> correct? Here is the log and dts
>>
>> [..]
>>
>>> =======================log begin =============================
>> [..]
>>> [ 0.000000] CPU EXYNOS4412 (id 0xe4412011)
>>
>> [..]
>>
>>> [ 1.095000] mmc0: no vmmc regulator found [ 1.130000]
>>> mmc0: SDHCI controller on samsung-hsmmc [12530000.sdhci] using
>>> ADMA [ 1.130000] Synopsys Designware Multimedia Card
>>> Interface Driver [ 1.130000] Unable to handle kernel NULL
>>> pointer dereference at virtual address 0000002a [ 1.130000]
>>> pgd = c0004000 [ 1.130000] [0000002a] *pgd=00000000 [
>>> 1.135000] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [
>>> 1.140000] Modules linked in: [ 1.140000] CPU: 0 PID: 1 Comm:
>>> swapper/0 Not tainted 3.13.0-rc1-00008-g584fa45-dirty #3 [
>>> 1.150000] task: ef0a4000 ti: ef0a8000 task.ti: ef0a8000 [
>>> 1.155000] PC is at clk_get_rate+0x18/0x5c [ 1.160000] LR is
>>> at clk_prepare_lock+0xc/0xd8 [ 1.165000] pc : [<c0319400>]
>>> lr : [<c0318864>] psr: a0000113 [ 1.165000] sp : ef0a9e20
>>> ip : ee94eb40 fp : 00000000 [ 1.175000] r10: c0571510 r9 :
>>> ef0a8000 r8 : ef227a10 [ 1.180000] r7 : c043544c r6 :
>>> fffffffe r5 : ee94ead0 r4 : fffffffe [ 1.185000] r3 :
>>> ef0a4000 r2 : 00000001 r1 : 000002b9 r0 : 00000001 [
>>> 1.195000] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM
>>> Segment kernel [ 1.200000] Control: 10c5387d Table:
>>> 4000404a DAC: 00000015 [ 1.205000] Process swapper/0 (pid:
>>> 1, stack limit = 0xef0a8240) [ 1.210000] Stack: (0xef0a9e20
>>> to 0xef0aa000) [ 1.215000] 9e20: c0308474 ee9ea610 ee94ead0
>>> c0308488 c0308474 ee9ea610 00000000 c030592c [ 1.225000]
>>> 9e40: ef227a10 00001000 c043544c c020a920 c0838b04 17d78400
>>> ee9ea610 ef227a00 [ 1.235000] 9e60: ef227a10 c05d6b1c
>>> 00000000 c05d6b1c c05890b0 ef0a8000 c0571510 c0269448 [
>>> 1.240000] 9e80: c0269430 ef227a10 c061291c c0268088 00000000
>>> ef227a10 c05d6b1c ef227a44 [ 1.250000] 9ea0: 00000000
>>> c026822c 00000000 c05d6b1c c02681a0 c02668a8 ef005478 ef212740
>>> [ 1.255000] 9ec0: c05d6b1c ef2c7900 c05cf438 c0267864
>>> c0511e38 c05d6b1c 00000006 c05d6b1c [ 1.265000] 9ee0:
>>> 00000006 c059575c c05df580 c026884c 00000000 c05a2e14 00000006
>>> c00088dc [ 1.275000] 9f00: c0603f70 ef163e00 c040e334
>>> 60000113 c05b5000 a0000113 c05b5054 c05b5050 [ 1.280000]
>>> 9f20: c05df580 c054ad68 c0839c96 c04247b4 00000093 c0035158
>>> c05b5054 c05a2a20 [ 1.290000] 9f40: c050ae2c c054a438
>>> 00000006 00000006 00000000 c05a2e14 00000006 c059575c [
>>> 1.300000] 9f60: c05df580 00000093 c0595768 c0571510 00000000
>>> c0571c48 00000006 00000006 [ 1.305000] 9f80: c0571510
>>> c003df68 00000000 c0403544 00000000 00000000 00000000 00000000
>>> [ 1.315000] 9fa0: 00000000 c040354c 00000000 c000e738
>>> 00000000 00000000 00000000 00000000 [ 1.320000] 9fc0:
>>> 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>>> 00000000 [ 1.330000] 9fe0: 00000000 00000000 00000000
>>> 00000000 00000013 00000000 be73efa4 ffffbffd [ 1.340000]
>>> [<c0319400>] (clk_get_rate+0x18/0x5c) from [<c0308488>]
>>> (dw_mci_exynos_setup_clock+0x14/0x2c) [ 1.350000]
>>> [<c0308488>] (dw_mci_exynos_setup_clock+0x14/0x2c) from
>>> [<c030592c>] (dw_mci_probe+0x15c/0xca4) [ 1.360000]
>>> [<c030592c>] (dw_mci_probe+0x15c/0xca4) from [<c0269448>]
>>> (platform_drv_probe+0x18/0x48) [ 1.365000] [<c0269448>]
>>> (platform_drv_probe+0x18/0x48) from [<c0268088>]
>>> (driver_probe_device+0x100/0x218) [ 1.375000] [<c0268088>]
>>> (driver_probe_device+0x100/0x218) from [<c026822c>]
>>> (__driver_attach+0x8c/0x90) [ 1.385000] [<c026822c>]
>>> (__driver_attach+0x8c/0x90) from [<c02668a8>]
>>> (bus_for_each_dev+0x54/0x88) [ 1.395000] [<c02668a8>]
>>> (bus_for_each_dev+0x54/0x88) from [<c0267864>]
>>> (bus_add_driver+0xd4/0x1d0) [ 1.405000] [<c0267864>]
>>> (bus_add_driver+0xd4/0x1d0) from [<c026884c>]
>>> (driver_register+0x78/0xf4) [ 1.415000] [<c026884c>]
>>> (driver_register+0x78/0xf4) from [<c00088dc>]
>>> (do_one_initcall+0xec/0x148) [ 1.420000] [<c00088dc>]
>>> (do_one_initcall+0xec/0x148) from [<c0571c48>]
>>> (kernel_init_freeable+0xfc/0x1c8) [ 1.430000] [<c0571c48>]
>>> (kernel_init_freeable+0xfc/0x1c8) from [<c040354c>]
>>> (kernel_init+0x8/0x110) [ 1.440000] [<c040354c>]
>>> (kernel_init+0x8/0x110) from [<c000e738>]
>>> (ret_from_fork+0x14/0x3c) [ 1.450000] Code: ebfffd18
>>> e3540000 01a05004 0a000008 (e594302c)
>>
>>
>> Looks like a clock issue on 4412? I only have 5250 that I boot
>> test on, no EXYNOS4 coverage at all (I had an Odroid-X but it
>> wasn't useful due to the very old u-boot it came with so I gave
>> it away).
>>
>> Tomasz, is this something you can reproduce on 4210/4412?
>
> Nope. All of our boards (exynos4210-trats, exynos4412-trats2) are
> configured to use sdhci-s3c for all MMC slots[1], as at the time
> they got submitted to mainline, this driver was considered more
> reliable than dw-mmc. Not sure about today, though.
>
> [1] On Exynos4 there is one dw-mmc block and four sdhci-s3c
> blocks, while there are just four physical busses. Using pin
> control you can configure any of the four sets of pins to work
> either using its dedicated sdhci-s3c or the only one dw-mmc.
>
> Best regards, Tomasz
>
> -- To unsubscribe from this list: send the line "unsubscribe
> linux-samsung-soc" in the body of a message to
> majord...@vger.kernel.org More majordomo info at
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>
>
Well I don't think it can work this time, maybe my dts is wrong.
At this time neither emmc nor usb can work.
==========================log begin===============================
[ 1.035000] s3c-rtc 10070000.rtc: rtc disabled, re-enabling
[ 1.040000] s3c-rtc 10070000.rtc: rtc core: registered s3c as rtc0
[ 1.050000] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30)
initialised: dm-de...@redhat.com
[ 1.055000] sdhci: Secure Digital Host Controller Interface driver
[ 1.060000] sdhci: Copyright(c) Pierre Ossman
[ 1.065000] s3c-sdhci 12530000.sdhci: clock source 2: mmc_busclk.2
(100000000 Hz)
[ 1.075000] s3c-sdhci 12530000.sdhci: dummy supplies not allowed
[ 1.080000] mmc0: no vqmmc regulator found
[ 1.085000] s3c-sdhci 12530000.sdhci: dummy supplies not allowed
[ 1.090000] mmc0: no vmmc regulator found
[ 1.125000] mmc0: SDHCI controller on samsung-hsmmc
[12530000.sdhci] using ADMA
[ 1.125000] s3c-sdhci 12550000.sdhci: failed to get io clock
[ 1.125000] s3c-sdhci: probe of 12550000.sdhci failed with error -2
[ 1.125000] Synopsys Designware Multimedia Card Interface Driver
[ 1.130000] usbcore: registered new interface driver usbhid
[ 1.130000] usbhid: USB HID core driver
[ 1.135000] TCP: cubic registered
[ 1.145000] NET: Registered protocol family 10
[ 1.145000] NET: Registered protocol family 17
[ 1.145000] NET: Registered protocol family 15
[ 1.150000] Key type dns_resolver registered
[ 1.155000] Registering SWP/SWPB emulation handler
[ 1.160000] unable to find transceiver of type USB2 PHY
[ 1.165000] exynos-ehci 12580000.ehci: no platform data or
transceiver defined
[ 1.175000] platform 12580000.ehci: Driver exynos-ehci requests
probe deferral
[ 1.175000] mmc0: new high speed SDHC card at address aaaa
[ 1.185000] isa bounce pool size: 16 pages
[ 1.190000] mmcblk0: mmc0:aaaa SU08G 7.40 GiB
[ 1.195000] s3c-rtc 10070000.rtc: setting system clock to
2013-01-01 12:06:09 UTC (1357041969)
[ 1.205000] exynos_cpufreq_init: failed to get resource vdd_arm
[ 1.205000] mmcblk0: p1 p2 p3 p4
[ 1.215000] unable to find transceiver of type USB2 PHY
[ 1.215000] exynos-ehci 12580000.ehci: no platform data or
transceiver defined
[ 1.225000] platform 12580000.ehci: Driver exynos-ehci requests
probe deferral
==========================log end=================================
=======================dts==============================================
/*
* Hardkernel's Exynos4412 based tiny4412 1306 board device tree source
*
* Copyright (c) 2013 Tomoya Gitsufuki <ay...@mail.soulik.info>
*
* 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";
};
sdhci@12550000 {
compatible = "samsung,exynos4210-sdhci";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x12550000 0x1000>;
interrupts = <0 77 0>;
non-removable;
pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
pinctrl-names = "default";
status = "okay";
bus-width = <8>;
vmmc-supply = <&vemmc_reg>;
clocks = <&clock 301>, <&clock 149>;
clocks-name = "dwmci", "sclk_dwmci";
clock-frequency = <400000000>;
};
/* the usb phy of hsic0, hsic1 and otg are in the same place */
usb_phy: otg@125B0000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "samsung,exynos4210-usbphy";
reg = <0x125B0000 0x100>;
ranges;
clocks = <&clock 2>, <&clock 305>;
clock-names = "xusbxti", "otg";
usbphy-sys {
/* USB device and host PHY_CONTROL registers */
reg = <0x10020704 0x8>;
};
};
ehci@12580000 {
usb-phy = <&usb_phy>;
status = "okay";
};
ohci@12590000 {
status = "okay";
};
codec@13400000 {
samsung,mfc-r = <0x43000000 0x800000>;
samsung,mfc-l = <0x51000000 0x800000>;
status = "okay";
};
serial@13800000 {
status = "okay";
};
serial@13810000 {
status = "okay";
};
serial@13820000 {
status = "okay";
};
serial@13830000 {
status = "okay";
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
clock-frequency = <0>;
};
xusbxti {
compatible = "samsung,clock-xusbxti";
clock-frequency = <24000000>;
};
};
i2c@13860000 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <200000>;
wm8960@10 {
compatible = "wlf,wm8960";
reg = <0x10>;
};
};
};
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