eMMC 4.51
John Tobias
john.tobias.ph at gmail.com
Mon Oct 21 18:58:57 EDT 2013
Hi Jackey,
I have a Marvell Datasheet and it support SDR12, SDR25 and SDR50 (upto
100MHz). SDR104 is not supported.
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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