From: Siva Durga Prasad Paladugu sivadur@xilinx.com
This patch adds support to invoke any platform specific tuning and delay routines if available.
Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com --- drivers/mmc/sdhci.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 2ce3b57..c17ab12 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -306,6 +306,24 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, return -ECOMM; }
+#if defined(CONFIG_DM_MMC) && defined(MMC_SUPPORTS_TUNING) +static int sdhci_execute_tuning(struct udevice *dev, uint opcode) +{ + int err; + struct mmc *mmc = mmc_get_mmc_dev(dev); + struct sdhci_host *host = mmc->priv; + + debug("%s\n", __func__); + + if (host->ops->platform_execute_tuning) { + err = host->ops->platform_execute_tuning(mmc, opcode); + if (err) + return err; + return 0; + } + return 0; +} +#endif static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) { struct sdhci_host *host = mmc->priv; @@ -330,6 +348,9 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) if (clock == 0) return 0;
+ if (host->ops->set_delay) + host->ops->set_delay(host); + if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { /* * Check if the Host Controller supports Programmable Clock @@ -521,6 +542,9 @@ int sdhci_probe(struct udevice *dev) const struct dm_mmc_ops sdhci_ops = { .send_cmd = sdhci_send_command, .set_ios = sdhci_set_ios, +#ifdef MMC_SUPPORTS_TUNING + .execute_tuning = sdhci_execute_tuning, +#endif }; #else static const struct mmc_ops sdhci_ops = { -- 2.7.4
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