sdio sn8000 wifi module

[angelo <angelo70@gmail.com>]

Dear all,

i am trying to have working this module with kernel 3.10 over
sdio, 4 lines, high speed, on a imx6q.

The bcm43362 CHIP_ID is still missing in kernel 3.10 so i merged
some small parts of 3.14 wifi drivers into 3.10.

Actually, seems this module does not reply to the SDIO probing
commands, i am getting err 110 (time out).

Seems its failing here, into sdio_ops.c

int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
{
     struct mmc_command cmd = {0};
     int i, err = 0;

     BUG_ON(!host);

     cmd.opcode = SD_IO_SEND_OP_COND;
     cmd.arg = ocr;
     cmd.flags = MMC_RSP_SPI_R4 | MMC_RSP_R4 | MMC_CMD_BCR;

     for (i = 100; i; i--) {

   >>>   err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
         if (err)
             break;


I checked trough oscilloscope, the command is sent but the
recognize operation terminates in time out.

I am using device tree. usdhc controller is set as 4 lines SDIO.

Every help or suggestion is appreciated.

Many thanks,
angelo