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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-10-10 06:51:31 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-10-15 15:39:45 +0300 |
| commit | acb9fce7309a38d25be7331375012b9481f20b27 (patch) | |
| tree | 54694492dea6a40b9e9ef1709a7190f96eabca16 /drivers/mmc/host/tmio_mmc.c | |
| parent | 60ab43ba6b6e0f888aab3ce0f84a8aaf15d15079 (diff) | |
| download | linux-acb9fce7309a38d25be7331375012b9481f20b27.tar.xz | |
mmc: tmio: move MFD variant reset to a platform hook
CTL_RESET_SDIO register is specific to the TMIO MFD (tmio_mmc.c).
Add a new hook host->reset() for performing a platform-specific
reset sequence, and move CTL_RESET_SDIO over there.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.c')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 29bda8224ae7..651e325238e6 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -70,6 +70,22 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host, tmio_mmc_clk_start(host); } +static void tmio_mmc_reset(struct tmio_mmc_host *host) +{ + /* FIXME - should we set stop clock reg here */ + sd_ctrl_write16(host, CTL_RESET_SD, 0x0000); + sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000); + usleep_range(10000, 11000); + sd_ctrl_write16(host, CTL_RESET_SD, 0x0001); + sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001); + usleep_range(10000, 11000); + + 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); + } +} + #ifdef CONFIG_PM_SLEEP static int tmio_mmc_suspend(struct device *dev) { @@ -148,6 +164,7 @@ static int tmio_mmc_probe(struct platform_device *pdev) /* SD control register space size is 0x200, 0x400 for bus_shift=1 */ host->bus_shift = resource_size(res) >> 10; host->set_clock = tmio_mmc_set_clock; + host->reset = tmio_mmc_reset; host->mmc->f_max = pdata->hclk; host->mmc->f_min = pdata->hclk / 512; |