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path: root/drivers/mmc/host/sdhci-xenon.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-xenon.c')
-rw-r--r--drivers/mmc/host/sdhci-xenon.c91
1 files changed, 59 insertions, 32 deletions
diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c
index 24c978de2a3f..c67611fdaa8a 100644
--- a/drivers/mmc/host/sdhci-xenon.c
+++ b/drivers/mmc/host/sdhci-xenon.c
@@ -11,6 +11,7 @@
* Special thanks to Video BG4 project team.
*/
+#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/ktime.h>
#include <linux/module.h>
@@ -247,6 +248,16 @@ static void xenon_voltage_switch(struct sdhci_host *host)
sdhci_readw(host, SDHCI_HOST_CONTROL2);
}
+static unsigned int xenon_get_max_clock(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+
+ if (pltfm_host->clk)
+ return sdhci_pltfm_clk_get_max_clock(host);
+ else
+ return pltfm_host->clock;
+}
+
static const struct sdhci_ops sdhci_xenon_ops = {
.voltage_switch = xenon_voltage_switch,
.set_clock = sdhci_set_clock,
@@ -254,7 +265,7 @@ static const struct sdhci_ops sdhci_xenon_ops = {
.set_bus_width = sdhci_set_bus_width,
.reset = xenon_reset,
.set_uhs_signaling = xenon_set_uhs_signaling,
- .get_max_clock = sdhci_pltfm_clk_get_max_clock,
+ .get_max_clock = xenon_get_max_clock,
};
static const struct sdhci_pltfm_data sdhci_xenon_pdata = {
@@ -407,9 +418,9 @@ static void xenon_replace_mmc_host_ops(struct sdhci_host *host)
* Refer to XENON_SYS_CFG_INFO register
* tun-count: the interval between re-tuning
*/
-static int xenon_probe_dt(struct platform_device *pdev)
+static int xenon_probe_params(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct mmc_host *mmc = host->mmc;
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -418,11 +429,11 @@ static int xenon_probe_dt(struct platform_device *pdev)
u32 tuning_count;
/* Disable HS200 on Armada AP806 */
- if (of_device_is_compatible(np, "marvell,armada-ap806-sdhci"))
+ if (priv->hw_version == XENON_AP806)
host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
sdhc_id = 0x0;
- if (!of_property_read_u32(np, "marvell,xenon-sdhc-id", &sdhc_id)) {
+ if (!device_property_read_u32(dev, "marvell,xenon-sdhc-id", &sdhc_id)) {
nr_sdhc = sdhci_readl(host, XENON_SYS_CFG_INFO);
nr_sdhc &= XENON_NR_SUPPORTED_SLOT_MASK;
if (unlikely(sdhc_id > nr_sdhc)) {
@@ -434,8 +445,8 @@ static int xenon_probe_dt(struct platform_device *pdev)
priv->sdhc_id = sdhc_id;
tuning_count = XENON_DEF_TUNING_COUNT;
- if (!of_property_read_u32(np, "marvell,xenon-tun-count",
- &tuning_count)) {
+ if (!device_property_read_u32(dev, "marvell,xenon-tun-count",
+ &tuning_count)) {
if (unlikely(tuning_count >= XENON_TMR_RETUN_NO_PRESENT)) {
dev_err(mmc_dev(mmc), "Wrong Re-tuning Count. Set default value %d\n",
XENON_DEF_TUNING_COUNT);
@@ -444,7 +455,7 @@ static int xenon_probe_dt(struct platform_device *pdev)
}
priv->tuning_count = tuning_count;
- return xenon_phy_parse_dt(np, host);
+ return xenon_phy_parse_params(dev, host);
}
static int xenon_sdhc_prepare(struct sdhci_host *host)
@@ -483,6 +494,7 @@ static void xenon_sdhc_unprepare(struct sdhci_host *host)
static int xenon_probe(struct platform_device *pdev)
{
struct sdhci_pltfm_host *pltfm_host;
+ struct device *dev = &pdev->dev;
struct sdhci_host *host;
struct xenon_priv *priv;
int err;
@@ -495,43 +507,47 @@ static int xenon_probe(struct platform_device *pdev)
pltfm_host = sdhci_priv(host);
priv = sdhci_pltfm_priv(pltfm_host);
+ priv->hw_version = (unsigned long)device_get_match_data(&pdev->dev);
+
/*
* Link Xenon specific mmc_host_ops function,
* to replace standard ones in sdhci_ops.
*/
xenon_replace_mmc_host_ops(host);
- pltfm_host->clk = devm_clk_get(&pdev->dev, "core");
- if (IS_ERR(pltfm_host->clk)) {
- err = PTR_ERR(pltfm_host->clk);
- dev_err(&pdev->dev, "Failed to setup input clk: %d\n", err);
- goto free_pltfm;
- }
- err = clk_prepare_enable(pltfm_host->clk);
- if (err)
- goto free_pltfm;
-
- priv->axi_clk = devm_clk_get(&pdev->dev, "axi");
- if (IS_ERR(priv->axi_clk)) {
- err = PTR_ERR(priv->axi_clk);
- if (err == -EPROBE_DEFER)
- goto err_clk;
- } else {
- err = clk_prepare_enable(priv->axi_clk);
+ if (dev->of_node) {
+ pltfm_host->clk = devm_clk_get(&pdev->dev, "core");
+ if (IS_ERR(pltfm_host->clk)) {
+ err = PTR_ERR(pltfm_host->clk);
+ dev_err(&pdev->dev, "Failed to setup input clk: %d\n", err);
+ goto free_pltfm;
+ }
+ err = clk_prepare_enable(pltfm_host->clk);
if (err)
- goto err_clk;
+ goto free_pltfm;
+
+ priv->axi_clk = devm_clk_get(&pdev->dev, "axi");
+ if (IS_ERR(priv->axi_clk)) {
+ err = PTR_ERR(priv->axi_clk);
+ if (err == -EPROBE_DEFER)
+ goto err_clk;
+ } else {
+ err = clk_prepare_enable(priv->axi_clk);
+ if (err)
+ goto err_clk;
+ }
}
err = mmc_of_parse(host->mmc);
if (err)
goto err_clk_axi;
- sdhci_get_of_property(pdev);
+ sdhci_get_property(pdev);
xenon_set_acg(host, false);
- /* Xenon specific dt parse */
- err = xenon_probe_dt(pdev);
+ /* Xenon specific parameters parse */
+ err = xenon_probe_params(pdev);
if (err)
goto err_clk_axi;
@@ -667,18 +683,29 @@ static const struct dev_pm_ops sdhci_xenon_dev_pm_ops = {
};
static const struct of_device_id sdhci_xenon_dt_ids[] = {
- { .compatible = "marvell,armada-ap806-sdhci",},
- { .compatible = "marvell,armada-cp110-sdhci",},
- { .compatible = "marvell,armada-3700-sdhci",},
+ { .compatible = "marvell,armada-ap806-sdhci", .data = (void *)XENON_AP806},
+ { .compatible = "marvell,armada-cp110-sdhci", .data = (void *)XENON_CP110},
+ { .compatible = "marvell,armada-3700-sdhci", .data = (void *)XENON_A3700},
{}
};
MODULE_DEVICE_TABLE(of, sdhci_xenon_dt_ids);
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id sdhci_xenon_acpi_ids[] = {
+ { .id = "MRVL0002", XENON_AP806},
+ { .id = "MRVL0003", XENON_AP807},
+ { .id = "MRVL0004", XENON_CP110},
+ {}
+};
+MODULE_DEVICE_TABLE(acpi, sdhci_xenon_acpi_ids);
+#endif
+
static struct platform_driver sdhci_xenon_driver = {
.driver = {
.name = "xenon-sdhci",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = sdhci_xenon_dt_ids,
+ .acpi_match_table = ACPI_PTR(sdhci_xenon_acpi_ids),
.pm = &sdhci_xenon_dev_pm_ops,
},
.probe = xenon_probe,
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-20 18:32:53 +0000