aboutsummaryrefslogtreecommitdiff
path: root/drivers/mmc/host/sdhci-pltfm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mmc/host/sdhci-pltfm.c')
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c71
1 files changed, 56 insertions, 15 deletions
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index c5c2a48bdd9..7e834fb78f4 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -36,13 +36,26 @@
#endif
#include "sdhci-pltfm.h"
-static struct sdhci_ops sdhci_pltfm_ops = {
+unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+
+ return clk_get_rate(pltfm_host->clk);
+}
+EXPORT_SYMBOL_GPL(sdhci_pltfm_clk_get_max_clock);
+
+static const struct sdhci_ops sdhci_pltfm_ops = {
+ .set_clock = sdhci_set_clock,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
};
#ifdef CONFIG_OF
static bool sdhci_of_wp_inverted(struct device_node *np)
{
- if (of_get_property(np, "sdhci,wp-inverted", NULL))
+ if (of_get_property(np, "sdhci,wp-inverted", NULL) ||
+ of_get_property(np, "wp-inverted", NULL))
return true;
/* Old device trees don't have the wp-inverted property. */
@@ -59,29 +72,45 @@ void sdhci_get_of_property(struct platform_device *pdev)
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
const __be32 *clk;
+ u32 bus_width;
int size;
if (of_device_is_available(np)) {
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
- if (of_get_property(np, "sdhci,1-bit-only", NULL))
+ if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
+ (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
+ bus_width == 1))
host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
if (sdhci_of_wp_inverted(np))
host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
+ if (of_get_property(np, "broken-cd", NULL))
+ host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
+
+ if (of_get_property(np, "no-1-8-v", NULL))
+ host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+
if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
of_device_is_compatible(np, "fsl,p1010-esdhc") ||
+ of_device_is_compatible(np, "fsl,t4240-esdhc") ||
of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
clk = of_get_property(np, "clock-frequency", &size);
if (clk && size == sizeof(*clk) && *clk)
pltfm_host->clock = be32_to_cpup(clk);
+
+ if (of_find_property(np, "keep-power-in-suspend", NULL))
+ host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
+
+ if (of_find_property(np, "enable-sdio-wakeup", NULL))
+ host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
}
}
#else
@@ -90,10 +119,10 @@ void sdhci_get_of_property(struct platform_device *pdev) {}
EXPORT_SYMBOL_GPL(sdhci_get_of_property);
struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size)
{
struct sdhci_host *host;
- struct sdhci_pltfm_host *pltfm_host;
struct device_node *np = pdev->dev.of_node;
struct resource *iomem;
int ret;
@@ -109,24 +138,27 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
/* Some PCI-based MFD need the parent here */
if (pdev->dev.parent != &platform_bus && !np)
- host = sdhci_alloc_host(pdev->dev.parent, sizeof(*pltfm_host));
+ host = sdhci_alloc_host(pdev->dev.parent,
+ sizeof(struct sdhci_pltfm_host) + priv_size);
else
- host = sdhci_alloc_host(&pdev->dev, sizeof(*pltfm_host));
+ host = sdhci_alloc_host(&pdev->dev,
+ sizeof(struct sdhci_pltfm_host) + priv_size);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto err;
}
- pltfm_host = sdhci_priv(host);
-
host->hw_name = dev_name(&pdev->dev);
if (pdata && pdata->ops)
host->ops = pdata->ops;
else
host->ops = &sdhci_pltfm_ops;
- if (pdata)
+ if (pdata) {
host->quirks = pdata->quirks;
+ host->quirks2 = pdata->quirks2;
+ }
+
host->irq = platform_get_irq(pdev, 0);
if (!request_mem_region(iomem->start, resource_size(iomem),
@@ -143,6 +175,13 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
goto err_remap;
}
+ /*
+ * Some platforms need to probe the controller to be able to
+ * determine which caps should be used.
+ */
+ if (host->ops && host->ops->platform_init)
+ host->ops->platform_init(host);
+
platform_set_drvdata(pdev, host);
return host;
@@ -165,17 +204,17 @@ void sdhci_pltfm_free(struct platform_device *pdev)
iounmap(host->ioaddr);
release_mem_region(iomem->start, resource_size(iomem));
sdhci_free_host(host);
- platform_set_drvdata(pdev, NULL);
}
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);
int sdhci_pltfm_register(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size)
{
struct sdhci_host *host;
int ret = 0;
- host = sdhci_pltfm_init(pdev, pdata);
+ host = sdhci_pltfm_init(pdev, pdata, priv_size);
if (IS_ERR(host))
return PTR_ERR(host);
@@ -202,19 +241,21 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
#ifdef CONFIG_PM
-static int sdhci_pltfm_suspend(struct device *dev)
+int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
return sdhci_suspend_host(host);
}
+EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
-static int sdhci_pltfm_resume(struct device *dev)
+int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
return sdhci_resume_host(host);
}
+EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);
const struct dev_pm_ops sdhci_pltfm_pmops = {
.suspend = sdhci_pltfm_suspend,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 08:42:10 +0000