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Remove stale comments about the issues with HS mode.

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Remove a previous workaround to limit the minimum sdhci frequency that
isn't needed anymore.
This commit is contained in:
Luiz Otavio O Souza 2015-02-04 16:36:51 +00:00
parent 07c7a520f1
commit d86f31b96b
1 changed files with 0 additions and 18 deletions
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18
sys/arm/broadcom/bcm2835/bcm2835_sdhci.c
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@ -67,19 +67,9 @@ __FBSDID("$FreeBSD$");
#define dprintf(fmt, args...)
#endif
/*
* Arasan HC seems to have problem with Data CRC on lower frequencies.
* Use this tunable to cap initialization sequence frequency at higher
* value. Default is standard 400kHz.
* HS mode brings too many problems for most of cards, so disable HS mode
* until a better fix comes up.
* HS mode still can be enabled with the tunable.
*/
static int bcm2835_sdhci_min_freq = 400000;
static int bcm2835_sdhci_hs = 1;
static int bcm2835_sdhci_pio_mode = 0;
TUNABLE_INT("hw.bcm2835.sdhci.min_freq", &bcm2835_sdhci_min_freq);
TUNABLE_INT("hw.bcm2835.sdhci.hs", &bcm2835_sdhci_hs);
TUNABLE_INT("hw.bcm2835.sdhci.pio_mode", &bcm2835_sdhci_pio_mode);
@ -404,13 +394,6 @@ bcm_sdhci_write_multi_4(device_t dev, struct sdhci_slot *slot, bus_size_t off,
bus_space_write_multi_4(sc->sc_bst, sc->sc_bsh, off, data, count);
}
static uint32_t
bcm_sdhci_min_freq(device_t dev, struct sdhci_slot *slot)
{
return bcm2835_sdhci_min_freq;
}
static void
bcm_sdhci_start_dma_seg(struct bcm_sdhci_softc *sc)
{
@ -663,7 +646,6 @@ static device_method_t bcm_sdhci_methods[] = {
DEVMETHOD(mmcbr_acquire_host, sdhci_generic_acquire_host),
DEVMETHOD(mmcbr_release_host, sdhci_generic_release_host),
DEVMETHOD(sdhci_min_freq, bcm_sdhci_min_freq),
/* Platform transfer methods */
DEVMETHOD(sdhci_platform_will_handle, bcm_sdhci_will_handle_transfer),
DEVMETHOD(sdhci_platform_start_transfer, bcm_sdhci_start_transfer),