eMMC 4.51
Jackey Shen
jackey.shen.bo at gmail.com
Sun Oct 27 22:22:51 EDT 2013
Hi John,
On Tue, Oct 22, 2013 at 6:58 AM, John Tobias <john.tobias.ph at gmail.com> wrote:
> Hi Jackey,
>
> I have a Marvell Datasheet and it support SDR12, SDR25 and SDR50 (upto
> 100MHz). SDR104 is not supported.
Sorry, I mis-remembered. Thanks for your clarification.
Thanks,
Jackey
>
> Regards,
>
> john
>
> On Thu, Oct 17, 2013 at 11:04 PM, Jackey Shen <jackey.shen.bo at gmail.com> wrote:
>> Hi John,
>>
>> Does your SD host controller support 3.0 card? As I know, Marvel
>> SDIO8797 can work at UHS-I SDR104. Did you test it?
>>
>> Thanks,
>> Jackey
>>
>> On Thu, Oct 10, 2013 at 2:00 AM, John Tobias <john.tobias.ph at gmail.com> wrote:
>>> Hi Jackey,
>>>
>>> The Marvel SD8797 work fine but there are some cases that the firmware
>>> failed to load during the system boot up. Although, we managed it by
>>> power cycling the power source of the Marvel chip so that the kernel
>>> will able to detect and reinitialize again.
>>>
>>> The module was running in high speed, 4bit bus width.
>>>
>>> Here are some info:
>>>
>>> # iperf -c 192.168.x.x -t 60 -i 10
>>> ------------------------------------------------------------
>>> Client connecting to 192.168.x.x, TCP port 5001
>>> TCP window size: 20.7 KByte (default)
>>> ------------------------------------------------------------
>>> [ 3] local 192.168.x.x port 52071 connected with 192.168.x.x port 5001
>>> [ ID] Interval Transfer Bandwidth
>>> [ 3] 0.0-10.0 sec 48.0 MBytes 40.3 Mbits/sec
>>> [ 3] 10.0-20.0 sec 53.4 MBytes 44.8 Mbits/sec
>>> [ 3] 20.0-30.0 sec 53.8 MBytes 45.1 Mbits/sec
>>> [ 3] 30.0-40.0 sec 56.4 MBytes 47.3 Mbits/sec
>>> [ 3] 40.0-50.0 sec 54.2 MBytes 45.5 Mbits/sec
>>> [ 3] 50.0-60.0 sec 53.5 MBytes 44.9 Mbits/sec
>>> [ 3] 0.0-60.0 sec 319 MBytes 44.6 Mbits/sec
>>>
>>> # iwconfig mlan0
>>> mlan0 IEEE 802.11abgn ESSID:"Pxx-xxx"
>>> Mode:Managed Frequency:2.437 GHz Access Point:
>>> BC:Dx:xx:xx:xx:xx
>>> Bit Rate=135 Mb/s
>>> Retry long limit:7 RTS thr:off Fragment thr:off
>>> Encryption key:off
>>> Power Management:on
>>> Link Quality=70/70 Signal level=-28 dBm
>>> Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
>>> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>>>
>>> Regards,
>>>
>>> john
>>>
>>>
>>>
>>> On Wed, Oct 9, 2013 at 12:23 AM, Jackey Shen <jackey.shen.bo at gmail.com>
>>> wrote:
>>>> Hi John,
>>>>
>>>> Does wifi module (Marvel SD8797) work fine on your board? What speed does
>>>> it
>>>> run at? SDR104?
>>>>
>>>> Thanks,
>>>> Jackey
>>>>
>>>> On Wed, Oct 9, 2013 at 10:00 AM, John Tobias <john.tobias.ph at gmail.com>
>>>> wrote:
>>>>>
>>>>> Hello,
>>>>>
>>>>> I am using git://gitorious.org/thierryreding/linux-next.git to boot my
>>>>> custom board based on iMX6 sololite. My board has SanDisk iNAND 4.51
>>>>> I/F and wifi module (Marvel SD8797). The latest update of
>>>>> sdhci-esdhc-imx.c supports DDR50/SDR50/SDR104 and I would like to use
>>>>> it for my device.
>>>>>
>>>>> In my .dts file, I have the following settings:
>>>>>
>>>>> /* WIFI module */
>>>>> &usdhc2 {
>>>>> pinctrl-names = "default", "state_100mhz", "state_200mhz";
>>>>> pinctrl-0 = <&pinctrl_usdhc2_2_default>;
>>>>> pinctrl-1 = <&pinctrl_usdhc2_3_100mhz>;
>>>>> pinctrl-2 = <&pinctrl_usdhc2_4_200mhz>;
>>>>> bus-width = <4>;
>>>>> status = "okay";
>>>>> };
>>>>>
>>>>> /* eMMC module */
>>>>> &usdhc4 {
>>>>> pinctrl-names = "default", "state_100mhz", "state_200mhz";
>>>>> pinctrl-0 = <&pinctrl_usdhc4_2_default>;
>>>>> pinctrl-1 = <&pinctrl_usdhc4_3_100mhz>;
>>>>> pinctrl-2 = <&pinctrl_usdhc4_4_200mhz>;
>>>>> bus-width = <8>;
>>>>> status = "okay";
>>>>> compatible = "fsl,imx6sl-usdhc", "fsl,imx6q-usdhc";
>>>>> reg = <0x0219c000 0x4000>;
>>>>> };
>>>>>
>>>>> Then, in my .dtsi file:
>>>>>
>>>>> usdhc2 {
>>>>> /*WIFI pinmux */
>>>>> pinctrl_usdhc2_2_default: default {
>>>>> fsl,pins = <
>>>>> EVT1_PAD_SD2_CMD__SD2_CMD 0x17039
>>>>> EVT1_PAD_SD2_CLK__SD2_CLK 0x17039
>>>>> EVT1_PAD_SD2_DATA0__SD2_DATA0 0x17039
>>>>> EVT1_PAD_SD2_DATA1__SD2_DATA1 0x17039
>>>>> EVT1_PAD_SD2_DATA2__SD2_DATA2 0x17039
>>>>> EVT1_PAD_SD2_DATA3__SD2_DATA3 0x17039
>>>>> >;
>>>>> };
>>>>>
>>>>> pinctrl_usdhc2_3_100mhz: state_100mhz { /* 100Mhz */
>>>>> fsl,pins = <
>>>>> EVT1_PAD_SD2_CMD__SD2_CMD 0x170B9
>>>>> EVT1_PAD_SD2_CLK__SD2_CLK 0x100B9
>>>>> EVT1_PAD_SD2_DATA0__SD2_DATA0 0x170B9
>>>>> EVT1_PAD_SD2_DATA1__SD2_DATA1 0x170B9
>>>>> EVT1_PAD_SD2_DATA2__SD2_DATA2 0x170B9
>>>>> EVT1_PAD_SD2_DATA3__SD2_DATA3 0x170B9
>>>>> >;
>>>>> };
>>>>>
>>>>> pinctrl_usdhc2_4_200mhz: state_200mhz { /* 200Mhz */
>>>>> fsl,pins = <
>>>>> EVT1_PAD_SD2_CMD__SD2_CMD 0x170F9
>>>>> EVT1_PAD_SD2_CLK__SD2_CLK 0x100F9
>>>>> EVT1_PAD_SD2_DATA0__SD2_DATA0 0x170F9
>>>>> EVT1_PAD_SD2_DATA1__SD2_DATA1 0x170F9
>>>>> EVT1_PAD_SD2_DATA2__SD2_DATA2 0x170F9
>>>>> EVT1_PAD_SD2_DATA3__SD2_DATA3 0x170F9
>>>>> >;
>>>>> };
>>>>> };
>>>>>
>>>>> usdhc4 {
>>>>> /* eMMC pinmux */
>>>>> pinctrl_usdhc4_2_default: default {
>>>>> fsl,pins = <
>>>>> EVT1_PAD_EPDC_BDR1__SD4_CMD 0x17039
>>>>> EVT1_PAD_EPDC_BDR0__SD4_CLK 0x10039
>>>>> EVT1_PAD_EPDC_PWR_COM__SD4_DATA0 0x17039
>>>>> EVT1_PAD_EPDC_PWR_IRQ__SD4_DATA1 0x17039
>>>>> EVT1_PAD_EPDC_PWR_STAT__SD4_DATA2 0x17039
>>>>> EVT1_PAD_EPDC_PWR_WAKE__SD4_DATA3 0x17039
>>>>> EVT1_PAD_FEC_MDC__SD4_DATA4 0x17039
>>>>> EVT1_PAD_FEC_RX_DATA0__SD4_DATA5 0x17039
>>>>> EVT1_PAD_FEC_TX_EN__SD4_DATA6 0x17039
>>>>> EVT1_PAD_FEC_TX_DATA1__SD4_DATA7 0x17039
>>>>> >;
>>>>> };
>>>>>
>>>>> pinctrl_usdhc4_3_100mhz: state_100mhz { /* 100Mhz */
>>>>> fsl,pins = <
>>>>> EVT1_PAD_EPDC_BDR1__SD4_CMD 0x170B9
>>>>> EVT1_PAD_EPDC_BDR0__SD4_CLK 0x100B9
>>>>> EVT1_PAD_EPDC_PWR_COM__SD4_DATA0 0x170B9
>>>>> EVT1_PAD_EPDC_PWR_IRQ__SD4_DATA1 0x170B9
>>>>> EVT1_PAD_EPDC_PWR_STAT__SD4_DATA2 0x170B9
>>>>> EVT1_PAD_EPDC_PWR_WAKE__SD4_DATA3 0x170B9
>>>>> EVT1_PAD_FEC_MDC__SD4_DATA4 0x170B9
>>>>> EVT1_PAD_FEC_RX_DATA0__SD4_DATA5 0x170B9
>>>>> EVT1_PAD_FEC_TX_EN__SD4_DATA6 0x170B9
>>>>> EVT1_PAD_FEC_TX_DATA1__SD4_DATA7 0x170B9
>>>>> >;
>>>>> };
>>>>>
>>>>> pinctrl_usdhc4_4_200mhz: state_200mhz { /* 200Mhz */
>>>>> fsl,pins = <
>>>>> EVT1_PAD_EPDC_BDR1__SD4_CMD 0x170F9
>>>>> EVT1_PAD_EPDC_BDR0__SD4_CLK 0x100F9
>>>>> EVT1_PAD_EPDC_PWR_COM__SD4_DATA0 0x170F9
>>>>> EVT1_PAD_EPDC_PWR_IRQ__SD4_DATA1 0x170F9
>>>>> EVT1_PAD_EPDC_PWR_STAT__SD4_DATA2 0x170F9
>>>>> EVT1_PAD_EPDC_PWR_WAKE__SD4_DATA3 0x170F9
>>>>> EVT1_PAD_FEC_MDC__SD4_DATA4 0x170F9
>>>>> EVT1_PAD_FEC_RX_DATA0__SD4_DATA5 0x170F9
>>>>> EVT1_PAD_FEC_TX_EN__SD4_DATA6 0x170F9
>>>>> EVT1_PAD_FEC_TX_DATA1__SD4_DATA7 0x170F9
>>>>> >;
>>>>> };
>>>>> };
>>>>>
>>>>>
>>>>> 1. After using the said pinmux settings, the sdhci-esdh-imx controller
>>>>> wasn't able to configure it correctly due the the group name for the
>>>>> two port were the same (default, state_100mhz, state_200mhz).
>>>>>
>>>>> 2. Then, I temporarily disabled usdhc4 to test if the driver able to
>>>>> enable the SDR50 for my wifi. Then, I was getting the following
>>>>> errors:
>>>>>
>>>>> [ 1.655024] mmc0: error -110 whilst initialising SDIO card
>>>>> [ 3.746340] mmc0: error -110 whilst initialising SDIO card
>>>>> [ 3.818624] mmc0: host doesn't support card's voltages
>>>>> [ 3.823783] mmc0: error -22 whilst initialising SDIO card
>>>>> [ 3.901670] mmc0: host doesn't support card's voltages
>>>>> [ 3.906862] mmc0: error -22 whilst initialising SDIO card
>>>>> [ 34.307777] mmc0: host doesn't support card's voltages
>>>>> [ 34.312980] mmc0: error -22 whilst initialising SDIO card
>>>>>
>>>>> 3. Then, I tried the eMMC to see if the driver able to enable the
>>>>> DDR50. After booting it, the kernel detect the eMMC only in hight
>>>>> speed mode.
>>>>>
>>>>>
>>>>> I would like to know if anyone here can help me to figure out how to
>>>>> enable the DDR50 for my eMMC and SDR50 for my wifi as well.
>>>>>
>>>>> Regards,
>>>>>
>>>>> john
>>>>> --
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>>>>
>>>>
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