diff options
Diffstat (limited to 'drivers/mmc/host/sh_mobile_sdhi.c')
| -rw-r--r-- | drivers/mmc/host/sh_mobile_sdhi.c | 120 |
1 files changed, 76 insertions, 44 deletions
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c index fe90853900b..91058dabd11 100644 --- a/drivers/mmc/host/sh_mobile_sdhi.c +++ b/drivers/mmc/host/sh_mobile_sdhi.c @@ -33,8 +33,12 @@ #include "tmio_mmc.h" +#define EXT_ACC 0xe4 + struct sh_mobile_sdhi_of_data { unsigned long tmio_flags; + unsigned long capabilities; + unsigned long capabilities2; }; static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = { @@ -43,20 +47,43 @@ static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = { }, }; +static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, +}; + +static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, + .capabilities2 = MMC_CAP2_NO_MULTI_READ, +}; + +static const struct of_device_id sh_mobile_sdhi_of_match[] = { + { .compatible = "renesas,sdhi-shmobile" }, + { .compatible = "renesas,sdhi-sh7372" }, + { .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], }, + { .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], }, + { .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], }, + { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, }, + { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, }, + { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, }, + {}, +}; +MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match); + struct sh_mobile_sdhi { struct clk *clk; struct tmio_mmc_data mmc_data; - struct sh_dmae_slave param_tx; - struct sh_dmae_slave param_rx; struct tmio_mmc_dma dma_priv; }; static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f) { - struct mmc_host *mmc = dev_get_drvdata(&pdev->dev); + struct mmc_host *mmc = platform_get_drvdata(pdev); struct tmio_mmc_host *host = mmc_priv(mmc); struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data); - int ret = clk_enable(priv->clk); + int ret = clk_prepare_enable(priv->clk); if (ret < 0) return ret; @@ -66,24 +93,10 @@ static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev) { - struct mmc_host *mmc = dev_get_drvdata(&pdev->dev); + struct mmc_host *mmc = platform_get_drvdata(pdev); struct tmio_mmc_host *host = mmc_priv(mmc); struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data); - clk_disable(priv->clk); -} - -static void sh_mobile_sdhi_set_pwr(struct platform_device *pdev, int state) -{ - struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; - - p->set_pwr(pdev, state); -} - -static int sh_mobile_sdhi_get_cd(struct platform_device *pdev) -{ - struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; - - return p->get_cd(pdev); + clk_disable_unprepare(priv->clk); } static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host) @@ -121,21 +134,13 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev) { - mmc_detect_change(dev_get_drvdata(&pdev->dev), msecs_to_jiffies(100)); + mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100)); } static const struct sh_mobile_sdhi_ops sdhi_ops = { .cd_wakeup = sh_mobile_sdhi_cd_wakeup, }; -static const struct of_device_id sh_mobile_sdhi_of_match[] = { - { .compatible = "renesas,shmobile-sdhi" }, - { .compatible = "renesas,sh7372-sdhi" }, - { .compatible = "renesas,r8a7740-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], }, - {}, -}; -MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match); - static int sh_mobile_sdhi_probe(struct platform_device *pdev) { const struct of_device_id *of_id = @@ -144,8 +149,15 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) struct tmio_mmc_data *mmc_data; struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; struct tmio_mmc_host *host; + struct resource *res; int irq, ret, i = 0; bool multiplexed_isr = true; + struct tmio_mmc_dma *dma_priv; + u16 ver; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL); if (priv == NULL) { @@ -154,6 +166,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) } mmc_data = &priv->mmc_data; + dma_priv = &priv->dma_priv; if (p) { if (p->init) { @@ -180,21 +193,25 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) mmc_data->capabilities |= p->tmio_caps; mmc_data->capabilities2 |= p->tmio_caps2; mmc_data->cd_gpio = p->cd_gpio; - if (p->set_pwr) - mmc_data->set_pwr = sh_mobile_sdhi_set_pwr; - if (p->get_cd) - mmc_data->get_cd = sh_mobile_sdhi_get_cd; if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) { - priv->param_tx.shdma_slave.slave_id = p->dma_slave_tx; - priv->param_rx.shdma_slave.slave_id = p->dma_slave_rx; - priv->dma_priv.chan_priv_tx = &priv->param_tx.shdma_slave; - priv->dma_priv.chan_priv_rx = &priv->param_rx.shdma_slave; - priv->dma_priv.alignment_shift = 1; /* 2-byte alignment */ - mmc_data->dma = &priv->dma_priv; + /* + * Yes, we have to provide slave IDs twice to TMIO: + * once as a filter parameter and once for channel + * configuration as an explicit slave ID + */ + dma_priv->chan_priv_tx = (void *)p->dma_slave_tx; + dma_priv->chan_priv_rx = (void *)p->dma_slave_rx; + dma_priv->slave_id_tx = p->dma_slave_tx; + dma_priv->slave_id_rx = p->dma_slave_rx; } } + dma_priv->alignment_shift = 1; /* 2-byte alignment */ + dma_priv->filter = shdma_chan_filter; + + mmc_data->dma = dma_priv; + /* * All SDHI blocks support 2-byte and larger block sizes in 4-bit * bus width mode. @@ -209,13 +226,26 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) if (of_id && of_id->data) { const struct sh_mobile_sdhi_of_data *of_data = of_id->data; mmc_data->flags |= of_data->tmio_flags; + mmc_data->capabilities |= of_data->capabilities; + mmc_data->capabilities2 |= of_data->capabilities2; } + /* SD control register space size is 0x100, 0x200 for bus_shift=1 */ + mmc_data->bus_shift = resource_size(res) >> 9; + ret = tmio_mmc_host_probe(&host, pdev, mmc_data); if (ret < 0) goto eprobe; /* + * FIXME: + * this Workaround can be more clever method + */ + ver = sd_ctrl_read16(host, CTL_VERSION); + if (ver == 0xCB0D) + sd_ctrl_write16(host, EXT_ACC, 1); + + /* * Allow one or more specific (named) ISRs or * one or more multiplexed (un-named) ISRs. */ @@ -265,8 +295,10 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) } /* There must be at least one IRQ source */ - if (!i) + if (!i) { + ret = irq; goto eirq; + } } dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n", @@ -300,10 +332,10 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev) } static const struct dev_pm_ops tmio_mmc_dev_pm_ops = { - .suspend = tmio_mmc_host_suspend, - .resume = tmio_mmc_host_resume, - .runtime_suspend = tmio_mmc_host_runtime_suspend, - .runtime_resume = tmio_mmc_host_runtime_resume, + SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_host_suspend, tmio_mmc_host_resume) + SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, + tmio_mmc_host_runtime_resume, + NULL) }; static struct platform_driver sh_mobile_sdhi_driver = { |