aboutsummaryrefslogtreecommitdiff
path: root/drivers/mmc/host/sdhci-tegra.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mmc/host/sdhci-tegra.c')
-rw-r--r--drivers/mmc/host/sdhci-tegra.c124
1 files changed, 29 insertions, 95 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 08b06e9a3a21..e0dba74cff98 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -24,6 +24,7 @@
#include <linux/gpio.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
+#include <linux/mmc/slot-gpio.h>
#include <asm/gpio.h>
@@ -38,16 +39,13 @@
#define NVQUIRK_ENABLE_SDHCI_SPEC_300 BIT(2)
struct sdhci_tegra_soc_data {
- struct sdhci_pltfm_data *pdata;
+ const struct sdhci_pltfm_data *pdata;
u32 nvquirks;
};
struct sdhci_tegra {
const struct sdhci_tegra_soc_data *soc_data;
- int cd_gpio;
- int wp_gpio;
int power_gpio;
- int is_8bit;
};
static u32 tegra_sdhci_readl(struct sdhci_host *host, int reg)
@@ -107,23 +105,9 @@ static void tegra_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
{
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct sdhci_tegra *tegra_host = pltfm_host->priv;
-
- if (!gpio_is_valid(tegra_host->wp_gpio))
- return -1;
-
- return gpio_get_value(tegra_host->wp_gpio);
+ return mmc_gpio_get_ro(host->mmc);
}
-static irqreturn_t carddetect_irq(int irq, void *data)
-{
- struct sdhci_host *sdhost = (struct sdhci_host *)data;
-
- tasklet_schedule(&sdhost->card_tasklet);
- return IRQ_HANDLED;
-};
-
static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -145,12 +129,11 @@ static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
static int tegra_sdhci_buswidth(struct sdhci_host *host, int bus_width)
{
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct sdhci_tegra *tegra_host = pltfm_host->priv;
u32 ctrl;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
- if (tegra_host->is_8bit && bus_width == MMC_BUS_WIDTH_8) {
+ if ((host->mmc->caps & MMC_CAP_8_BIT_DATA) &&
+ (bus_width == MMC_BUS_WIDTH_8)) {
ctrl &= ~SDHCI_CTRL_4BITBUS;
ctrl |= SDHCI_CTRL_8BITBUS;
} else {
@@ -164,7 +147,7 @@ static int tegra_sdhci_buswidth(struct sdhci_host *host, int bus_width)
return 0;
}
-static struct sdhci_ops tegra_sdhci_ops = {
+static const struct sdhci_ops tegra_sdhci_ops = {
.get_ro = tegra_sdhci_get_ro,
.read_l = tegra_sdhci_readl,
.read_w = tegra_sdhci_readw,
@@ -173,8 +156,7 @@ static struct sdhci_ops tegra_sdhci_ops = {
.platform_reset_exit = tegra_sdhci_reset_exit,
};
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
-static struct sdhci_pltfm_data sdhci_tegra20_pdata = {
+static const struct sdhci_pltfm_data sdhci_tegra20_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_NO_HISPD_BIT |
@@ -187,10 +169,8 @@ static struct sdhci_tegra_soc_data soc_data_tegra20 = {
.nvquirks = NVQUIRK_FORCE_SDHCI_SPEC_200 |
NVQUIRK_ENABLE_BLOCK_GAP_DET,
};
-#endif
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
-static struct sdhci_pltfm_data sdhci_tegra30_pdata = {
+static const struct sdhci_pltfm_data sdhci_tegra30_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
@@ -203,32 +183,37 @@ static struct sdhci_tegra_soc_data soc_data_tegra30 = {
.pdata = &sdhci_tegra30_pdata,
.nvquirks = NVQUIRK_ENABLE_SDHCI_SPEC_300,
};
-#endif
+
+static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
+ .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_SINGLE_POWER_WRITE |
+ SDHCI_QUIRK_NO_HISPD_BIT |
+ SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC,
+ .ops = &tegra_sdhci_ops,
+};
+
+static struct sdhci_tegra_soc_data soc_data_tegra114 = {
+ .pdata = &sdhci_tegra114_pdata,
+};
static const struct of_device_id sdhci_tegra_dt_match[] = {
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+ { .compatible = "nvidia,tegra114-sdhci", .data = &soc_data_tegra114 },
{ .compatible = "nvidia,tegra30-sdhci", .data = &soc_data_tegra30 },
-#endif
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
{ .compatible = "nvidia,tegra20-sdhci", .data = &soc_data_tegra20 },
-#endif
{}
};
-MODULE_DEVICE_TABLE(of, sdhci_dt_ids);
+MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
-static void sdhci_tegra_parse_dt(struct device *dev,
- struct sdhci_tegra *tegra_host)
+static void sdhci_tegra_parse_dt(struct device *dev)
{
struct device_node *np = dev->of_node;
- u32 bus_width;
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
- tegra_host->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
- tegra_host->wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
-
- if (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
- bus_width == 8)
- tegra_host->is_8bit = 1;
+ mmc_of_parse(host->mmc);
}
static int sdhci_tegra_probe(struct platform_device *pdev)
@@ -260,7 +245,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
tegra_host->soc_data = soc_data;
pltfm_host->priv = tegra_host;
- sdhci_tegra_parse_dt(&pdev->dev, tegra_host);
+ sdhci_tegra_parse_dt(&pdev->dev);
if (gpio_is_valid(tegra_host->power_gpio)) {
rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
@@ -272,37 +257,6 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
gpio_direction_output(tegra_host->power_gpio, 1);
}
- if (gpio_is_valid(tegra_host->cd_gpio)) {
- rc = gpio_request(tegra_host->cd_gpio, "sdhci_cd");
- if (rc) {
- dev_err(mmc_dev(host->mmc),
- "failed to allocate cd gpio\n");
- goto err_cd_req;
- }
- gpio_direction_input(tegra_host->cd_gpio);
-
- rc = request_irq(gpio_to_irq(tegra_host->cd_gpio),
- carddetect_irq,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
- mmc_hostname(host->mmc), host);
-
- if (rc) {
- dev_err(mmc_dev(host->mmc), "request irq error\n");
- goto err_cd_irq_req;
- }
-
- }
-
- if (gpio_is_valid(tegra_host->wp_gpio)) {
- rc = gpio_request(tegra_host->wp_gpio, "sdhci_wp");
- if (rc) {
- dev_err(mmc_dev(host->mmc),
- "failed to allocate wp gpio\n");
- goto err_wp_req;
- }
- gpio_direction_input(tegra_host->wp_gpio);
- }
-
clk = clk_get(mmc_dev(host->mmc), NULL);
if (IS_ERR(clk)) {
dev_err(mmc_dev(host->mmc), "clk err\n");
@@ -312,9 +266,6 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
clk_prepare_enable(clk);
pltfm_host->clk = clk;
- if (tegra_host->is_8bit)
- host->mmc->caps |= MMC_CAP_8_BIT_DATA;
-
rc = sdhci_add_host(host);
if (rc)
goto err_add_host;
@@ -325,15 +276,6 @@ err_add_host:
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
err_clk_get:
- if (gpio_is_valid(tegra_host->wp_gpio))
- gpio_free(tegra_host->wp_gpio);
-err_wp_req:
- if (gpio_is_valid(tegra_host->cd_gpio))
- free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
-err_cd_irq_req:
- if (gpio_is_valid(tegra_host->cd_gpio))
- gpio_free(tegra_host->cd_gpio);
-err_cd_req:
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
err_power_req:
@@ -351,14 +293,6 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
sdhci_remove_host(host, dead);
- if (gpio_is_valid(tegra_host->wp_gpio))
- gpio_free(tegra_host->wp_gpio);
-
- if (gpio_is_valid(tegra_host->cd_gpio)) {
- free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
- gpio_free(tegra_host->cd_gpio);
- }
-
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 19:36:35 +0000