From 64e8867ba8098b69889c1af94997a5ba2348fb26 Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Wed, 6 Jan 2010 13:51:48 +0100 Subject: mfd: tmio_mmc hardware abstraction for CNF area This patch abstracts out the CNF area code from tmio_mmc which is not present in all hardware that can use this driver. This is required so that we can support non-toshiba based hardware. ASIC3 support by Philipp Zabel Signed-off-by: Ian Molton Signed-off-by: Magnus Damm Signed-off-by: Samuel Ortiz --- drivers/mmc/host/tmio_mmc.c | 59 +++++++++++++++------------------------------ 1 file changed, 19 insertions(+), 40 deletions(-) (limited to 'drivers/mmc/host/tmio_mmc.c') diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 7cccc8523747..e22c3fa3516a 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -46,7 +46,9 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock) clk |= 0x100; } - sd_config_write8(host, CNF_SD_CLK_MODE, clk >> 22); + if (host->set_clk_div) + host->set_clk_div(host->pdev, (clk>>22) & 1); + sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & 0x1ff); } @@ -427,12 +429,13 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* Power sequence - OFF -> ON -> UP */ switch (ios->power_mode) { case MMC_POWER_OFF: /* power down SD bus */ - sd_config_write8(host, CNF_PWR_CTL_2, 0x00); + if (host->set_pwr) + host->set_pwr(host->pdev, 0); tmio_mmc_clk_stop(host); break; case MMC_POWER_ON: /* power up SD bus */ - - sd_config_write8(host, CNF_PWR_CTL_2, 0x02); + if (host->set_pwr) + host->set_pwr(host->pdev, 1); break; case MMC_POWER_UP: /* start bus clock */ tmio_mmc_clk_start(host); @@ -485,21 +488,15 @@ static int tmio_mmc_resume(struct platform_device *dev) { struct mfd_cell *cell = (struct mfd_cell *)dev->dev.platform_data; struct mmc_host *mmc = platform_get_drvdata(dev); - struct tmio_mmc_host *host = mmc_priv(mmc); int ret = 0; /* Tell the MFD core we are ready to be enabled */ - if (cell->enable) { - ret = cell->enable(dev); + if (cell->resume) { + ret = cell->resume(dev); if (ret) goto out; } - /* Enable the MMC/SD Control registers */ - sd_config_write16(host, CNF_CMD, SDCREN); - sd_config_write32(host, CNF_CTL_BASE, - (dev->resource[0].start >> host->bus_shift) & 0xfffe); - mmc_resume_host(mmc); out: @@ -514,17 +511,16 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) { struct mfd_cell *cell = (struct mfd_cell *)dev->dev.platform_data; struct tmio_mmc_data *pdata; - struct resource *res_ctl, *res_cnf; + struct resource *res_ctl; struct tmio_mmc_host *host; struct mmc_host *mmc; int ret = -EINVAL; - if (dev->num_resources != 3) + if (dev->num_resources != 2) goto out; res_ctl = platform_get_resource(dev, IORESOURCE_MEM, 0); - res_cnf = platform_get_resource(dev, IORESOURCE_MEM, 1); - if (!res_ctl || !res_cnf) + if (!res_ctl) goto out; pdata = cell->driver_data; @@ -539,8 +535,12 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) host = mmc_priv(mmc); host->mmc = mmc; + host->pdev = dev; platform_set_drvdata(dev, mmc); + host->set_pwr = pdata->set_pwr; + host->set_clk_div = pdata->set_clk_div; + /* SD control register space size is 0x200, 0x400 for bus_shift=1 */ host->bus_shift = resource_size(res_ctl) >> 10; @@ -548,10 +548,6 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) if (!host->ctl) goto host_free; - host->cnf = ioremap(res_cnf->start, resource_size(res_cnf)); - if (!host->cnf) - goto unmap_ctl; - mmc->ops = &tmio_mmc_ops; mmc->caps = MMC_CAP_4_BIT_DATA; mmc->f_max = pdata->hclk; @@ -562,23 +558,9 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) if (cell->enable) { ret = cell->enable(dev); if (ret) - goto unmap_cnf; + goto unmap_ctl; } - /* Enable the MMC/SD Control registers */ - sd_config_write16(host, CNF_CMD, SDCREN); - sd_config_write32(host, CNF_CTL_BASE, - (dev->resource[0].start >> host->bus_shift) & 0xfffe); - - /* Disable SD power during suspend */ - sd_config_write8(host, CNF_PWR_CTL_3, 0x01); - - /* The below is required but why? FIXME */ - sd_config_write8(host, CNF_STOP_CLK_CTL, 0x1f); - - /* Power down SD bus*/ - sd_config_write8(host, CNF_PWR_CTL_2, 0x00); - tmio_mmc_clk_stop(host); reset(host); @@ -586,14 +568,14 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) if (ret >= 0) host->irq = ret; else - goto unmap_cnf; + goto unmap_ctl; disable_mmc_irqs(host, TMIO_MASK_ALL); ret = request_irq(host->irq, tmio_mmc_irq, IRQF_DISABLED | IRQF_TRIGGER_FALLING, dev_name(&dev->dev), host); if (ret) - goto unmap_cnf; + goto unmap_ctl; mmc_add_host(mmc); @@ -605,8 +587,6 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) return 0; -unmap_cnf: - iounmap(host->cnf); unmap_ctl: iounmap(host->ctl); host_free: @@ -626,7 +606,6 @@ static int __devexit tmio_mmc_remove(struct platform_device *dev) mmc_remove_host(mmc); free_irq(host->irq, host); iounmap(host->ctl); - iounmap(host->cnf); mmc_free_host(mmc); } -- cgit v1.2.3