diff options
Diffstat (limited to 'drivers/mmc/host/tmio_mmc_core.c')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_core.c | 61 |
1 files changed, 29 insertions, 32 deletions
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index 49c2d406c48e..7dfc26f48c18 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -164,6 +164,21 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) } } +static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host, + unsigned char bus_width) +{ + u16 reg = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT) + & ~(CARD_OPT_WIDTH | CARD_OPT_WIDTH8); + + /* reg now applies to MMC_BUS_WIDTH_4 */ + if (bus_width == MMC_BUS_WIDTH_1) + reg |= CARD_OPT_WIDTH; + else if (bus_width == MMC_BUS_WIDTH_8) + reg |= CARD_OPT_WIDTH8; + + sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, reg); +} + static void tmio_mmc_reset(struct tmio_mmc_host *host) { /* FIXME - should we set stop clock reg here */ @@ -172,15 +187,23 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host) sd_ctrl_write16(host, CTL_RESET_SD, 0x0001); usleep_range(10000, 11000); + tmio_mmc_abort_dma(host); + if (host->reset) host->reset(host); - tmio_mmc_abort_dma(host); + sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask_all); + host->sdcard_irq_mask = host->sdcard_irq_mask_all; + + tmio_mmc_set_bus_width(host, host->mmc->ios.bus_width); if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) { sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask); sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001); } + + if (host->mmc->card) + mmc_retune_needed(host->mmc); } static void tmio_mmc_reset_work(struct work_struct *work) @@ -874,21 +897,6 @@ static void tmio_mmc_power_off(struct tmio_mmc_host *host) host->set_pwr(host->pdev, 0); } -static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host, - unsigned char bus_width) -{ - u16 reg = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT) - & ~(CARD_OPT_WIDTH | CARD_OPT_WIDTH8); - - /* reg now applies to MMC_BUS_WIDTH_4 */ - if (bus_width == MMC_BUS_WIDTH_1) - reg |= CARD_OPT_WIDTH; - else if (bus_width == MMC_BUS_WIDTH_8) - reg |= CARD_OPT_WIDTH8; - - sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, reg); -} - static unsigned int tmio_mmc_get_timeout_cycles(struct tmio_mmc_host *host) { u16 val = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT); @@ -1161,15 +1169,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host) !mmc_card_is_removable(mmc)); /* - * On Gen2+, eMMC with NONREMOVABLE currently fails because native - * hotplug gets disabled. It seems RuntimePM related yet we need further - * research. Since we are planning a PM overhaul anyway, let's enforce - * for now the device being active by enabling native hotplug always. - */ - if (pdata->flags & TMIO_MMC_MIN_RCAR2) - _host->native_hotplug = true; - - /* * While using internal tmio hardware logic for card detection, we need * to ensure it stays powered for it to work. */ @@ -1180,12 +1179,12 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host) if (pdata->flags & TMIO_MMC_SDIO_IRQ) _host->sdio_irq_mask = TMIO_SDIO_MASK_ALL; + if (!_host->sdcard_irq_mask_all) + _host->sdcard_irq_mask_all = TMIO_MASK_ALL; + _host->set_clock(_host, 0); tmio_mmc_reset(_host); - _host->sdcard_irq_mask = sd_ctrl_read16_and_16_as_32(_host, CTL_IRQ_MASK); - tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL); - if (_host->native_hotplug) tmio_mmc_enable_mmc_irqs(_host, TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT); @@ -1238,7 +1237,7 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host) cancel_work_sync(&host->done); cancel_delayed_work_sync(&host->delayed_reset_work); tmio_mmc_release_dma(host); - tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL); + tmio_mmc_disable_mmc_irqs(host, host->sdcard_irq_mask_all); if (host->native_hotplug) pm_runtime_put_noidle(&pdev->dev); @@ -1268,7 +1267,7 @@ int tmio_mmc_host_runtime_suspend(struct device *dev) { struct tmio_mmc_host *host = dev_get_drvdata(dev); - tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL); + tmio_mmc_disable_mmc_irqs(host, host->sdcard_irq_mask_all); if (host->clk_cache) host->set_clock(host, 0); @@ -1295,8 +1294,6 @@ int tmio_mmc_host_runtime_resume(struct device *dev) tmio_mmc_enable_dma(host, true); - mmc_retune_needed(host->mmc); - return 0; } EXPORT_SYMBOL_GPL(tmio_mmc_host_runtime_resume); |