> Date: Sun, 11 Sep 2016 09:45:59 +0200
> From: Marcus Glocker
>
> This gets the sdmmc i/o reset working.
>
> Now on my allwinner,sun5i-r8 the wifi device also attaches again
> after a reboot (currently just works on cold boot).
>
> ok?
Had something very similar in one of my trees. Still detects the
broadcom module on the cubox. So ok kettenis@
> Index: sdmmc_io.c
> ===
> RCS file: /cvs/src/sys/dev/sdmmc/sdmmc_io.c,v
> retrieving revision 1.26
> diff -u -p -r1.26 sdmmc_io.c
> --- sdmmc_io.c12 May 2016 15:26:42 - 1.26
> +++ sdmmc_io.c11 Sep 2016 07:33:36 -
> @@ -113,9 +113,6 @@ sdmmc_io_enable(struct sdmmc_softc *sc)
> return 1;
> }
>
> - /* Reset I/O functions (again). */
> - sdmmc_io_reset(sc);
> -
> /* Send the new OCR value until all cards are ready. */
> if (sdmmc_io_send_op_cond(sc, host_ocr, NULL) != 0) {
> printf("%s: can't send I/O OCR\n", DEVNAME(sc));
> @@ -550,10 +547,13 @@ sdmmc_io_xchg(struct sdmmc_softc *sc, st
> void
> sdmmc_io_reset(struct sdmmc_softc *sc)
> {
> -#if 0 /* XXX command fails */
> - (void)sdmmc_io_write(sc, NULL, SD_IO_REG_CCCR_CTL, CCCR_CTL_RES);
> - sdmmc_delay(10);
> -#endif
> + u_int8_t data = CCCR_CTL_RES;
> +
> + rw_assert_wrlock(&sc->sc_lock);
> +
> + if (sdmmc_io_rw_direct(sc, NULL, SD_IO_CCCR_CTL, (u_char *)&data,
> + SD_ARG_CMD52_WRITE) == 0)
> + sdmmc_delay(10);
> }
>
> /*
>
>
