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path: root/drivers/mmc/host/s3cmci.c
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Diffstat (limited to 'drivers/mmc/host/s3cmci.c')
-rw-r--r--drivers/mmc/host/s3cmci.c165
1 files changed, 101 insertions, 64 deletions
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 1ccd4b256ce..f23782683a7 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -23,17 +23,97 @@
#include <linux/irq.h>
#include <linux/io.h>
+#include <plat/gpio-cfg.h>
#include <mach/dma.h>
+#include <mach/gpio-samsung.h>
-#include <mach/regs-sdi.h>
-#include <mach/regs-gpio.h>
-
-#include <plat/mci.h>
+#include <linux/platform_data/mmc-s3cmci.h>
#include "s3cmci.h"
#define DRIVER_NAME "s3c-mci"
+#define S3C2410_SDICON (0x00)
+#define S3C2410_SDIPRE (0x04)
+#define S3C2410_SDICMDARG (0x08)
+#define S3C2410_SDICMDCON (0x0C)
+#define S3C2410_SDICMDSTAT (0x10)
+#define S3C2410_SDIRSP0 (0x14)
+#define S3C2410_SDIRSP1 (0x18)
+#define S3C2410_SDIRSP2 (0x1C)
+#define S3C2410_SDIRSP3 (0x20)
+#define S3C2410_SDITIMER (0x24)
+#define S3C2410_SDIBSIZE (0x28)
+#define S3C2410_SDIDCON (0x2C)
+#define S3C2410_SDIDCNT (0x30)
+#define S3C2410_SDIDSTA (0x34)
+#define S3C2410_SDIFSTA (0x38)
+
+#define S3C2410_SDIDATA (0x3C)
+#define S3C2410_SDIIMSK (0x40)
+
+#define S3C2440_SDIDATA (0x40)
+#define S3C2440_SDIIMSK (0x3C)
+
+#define S3C2440_SDICON_SDRESET (1 << 8)
+#define S3C2410_SDICON_SDIOIRQ (1 << 3)
+#define S3C2410_SDICON_FIFORESET (1 << 1)
+#define S3C2410_SDICON_CLOCKTYPE (1 << 0)
+
+#define S3C2410_SDICMDCON_LONGRSP (1 << 10)
+#define S3C2410_SDICMDCON_WAITRSP (1 << 9)
+#define S3C2410_SDICMDCON_CMDSTART (1 << 8)
+#define S3C2410_SDICMDCON_SENDERHOST (1 << 6)
+#define S3C2410_SDICMDCON_INDEX (0x3f)
+
+#define S3C2410_SDICMDSTAT_CRCFAIL (1 << 12)
+#define S3C2410_SDICMDSTAT_CMDSENT (1 << 11)
+#define S3C2410_SDICMDSTAT_CMDTIMEOUT (1 << 10)
+#define S3C2410_SDICMDSTAT_RSPFIN (1 << 9)
+
+#define S3C2440_SDIDCON_DS_WORD (2 << 22)
+#define S3C2410_SDIDCON_TXAFTERRESP (1 << 20)
+#define S3C2410_SDIDCON_RXAFTERCMD (1 << 19)
+#define S3C2410_SDIDCON_BLOCKMODE (1 << 17)
+#define S3C2410_SDIDCON_WIDEBUS (1 << 16)
+#define S3C2410_SDIDCON_DMAEN (1 << 15)
+#define S3C2410_SDIDCON_STOP (1 << 14)
+#define S3C2440_SDIDCON_DATSTART (1 << 14)
+
+#define S3C2410_SDIDCON_XFER_RXSTART (2 << 12)
+#define S3C2410_SDIDCON_XFER_TXSTART (3 << 12)
+
+#define S3C2410_SDIDCON_BLKNUM_MASK (0xFFF)
+
+#define S3C2410_SDIDSTA_SDIOIRQDETECT (1 << 9)
+#define S3C2410_SDIDSTA_FIFOFAIL (1 << 8)
+#define S3C2410_SDIDSTA_CRCFAIL (1 << 7)
+#define S3C2410_SDIDSTA_RXCRCFAIL (1 << 6)
+#define S3C2410_SDIDSTA_DATATIMEOUT (1 << 5)
+#define S3C2410_SDIDSTA_XFERFINISH (1 << 4)
+#define S3C2410_SDIDSTA_TXDATAON (1 << 1)
+#define S3C2410_SDIDSTA_RXDATAON (1 << 0)
+
+#define S3C2440_SDIFSTA_FIFORESET (1 << 16)
+#define S3C2440_SDIFSTA_FIFOFAIL (3 << 14)
+#define S3C2410_SDIFSTA_TFDET (1 << 13)
+#define S3C2410_SDIFSTA_RFDET (1 << 12)
+#define S3C2410_SDIFSTA_COUNTMASK (0x7f)
+
+#define S3C2410_SDIIMSK_RESPONSECRC (1 << 17)
+#define S3C2410_SDIIMSK_CMDSENT (1 << 16)
+#define S3C2410_SDIIMSK_CMDTIMEOUT (1 << 15)
+#define S3C2410_SDIIMSK_RESPONSEND (1 << 14)
+#define S3C2410_SDIIMSK_SDIOIRQ (1 << 12)
+#define S3C2410_SDIIMSK_FIFOFAIL (1 << 11)
+#define S3C2410_SDIIMSK_CRCSTATUS (1 << 10)
+#define S3C2410_SDIIMSK_DATACRC (1 << 9)
+#define S3C2410_SDIIMSK_DATATIMEOUT (1 << 8)
+#define S3C2410_SDIIMSK_DATAFINISH (1 << 7)
+#define S3C2410_SDIIMSK_TXFIFOHALF (1 << 4)
+#define S3C2410_SDIIMSK_RXFIFOLAST (1 << 2)
+#define S3C2410_SDIIMSK_RXFIFOHALF (1 << 0)
+
enum dbg_channels {
dbg_err = (1 << 0),
dbg_debug = (1 << 1),
@@ -247,7 +327,7 @@ static void s3cmci_check_sdio_irq(struct s3cmci_host *host)
{
if (host->sdio_irqen) {
if (gpio_get_value(S3C2410_GPE(8)) == 0) {
- printk(KERN_DEBUG "%s: signalling irq\n", __func__);
+ pr_debug("%s: signalling irq\n", __func__);
mmc_signal_sdio_irq(host->mmc);
}
}
@@ -344,7 +424,7 @@ static void s3cmci_disable_irq(struct s3cmci_host *host, bool transfer)
local_irq_save(flags);
- //printk(KERN_DEBUG "%s: transfer %d\n", __func__, transfer);
+ /* pr_debug("%s: transfer %d\n", __func__, transfer); */
host->irq_disabled = transfer;
@@ -874,7 +954,7 @@ static void finalize_request(struct s3cmci_host *host)
if (!mrq->data)
goto request_done;
- /* Calulate the amout of bytes transfer if there was no error */
+ /* Calculate the amout of bytes transfer if there was no error */
if (mrq->data->error == 0) {
mrq->data->bytes_xfered =
(mrq->data->blocks * mrq->data->blksz);
@@ -882,7 +962,7 @@ static void finalize_request(struct s3cmci_host *host)
mrq->data->bytes_xfered = 0;
}
- /* If we had an error while transfering data we flush the
+ /* If we had an error while transferring data we flush the
* DMA channel and the fifo to clear out any garbage. */
if (mrq->data->error != 0) {
if (s3cmci_host_usedma(host))
@@ -913,9 +993,9 @@ request_done:
}
static void s3cmci_dma_setup(struct s3cmci_host *host,
- enum s3c2410_dmasrc source)
+ enum dma_data_direction source)
{
- static enum s3c2410_dmasrc last_source = -1;
+ static enum dma_data_direction last_source = -1;
static int setup_ok;
if (last_source == source)
@@ -980,7 +1060,7 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data)
if ((data->blksz & 3) != 0) {
/* We cannot deal with unaligned blocks with more than
- * one block being transfered. */
+ * one block being transferred. */
if (data->blocks > 1) {
pr_warning("%s: can't do non-word sized block transfers (blksz %d)\n", __func__, data->blksz);
@@ -1087,7 +1167,7 @@ static int s3cmci_prepare_dma(struct s3cmci_host *host, struct mmc_data *data)
BUG_ON((data->flags & BOTH_DIR) == BOTH_DIR);
- s3cmci_dma_setup(host, rw ? S3C2410_DMASRC_MEM : S3C2410_DMASRC_HW);
+ s3cmci_dma_setup(host, rw ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
s3c2410_dma_ctrl(host->dma, S3C2410_DMAOP_FLUSH);
dma_len = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
@@ -1237,12 +1317,9 @@ static void s3cmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
switch (ios->power_mode) {
case MMC_POWER_ON:
case MMC_POWER_UP:
- s3c2410_gpio_cfgpin(S3C2410_GPE(5), S3C2410_GPE5_SDCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE(6), S3C2410_GPE6_SDCMD);
- s3c2410_gpio_cfgpin(S3C2410_GPE(7), S3C2410_GPE7_SDDAT0);
- s3c2410_gpio_cfgpin(S3C2410_GPE(8), S3C2410_GPE8_SDDAT1);
- s3c2410_gpio_cfgpin(S3C2410_GPE(9), S3C2410_GPE9_SDDAT2);
- s3c2410_gpio_cfgpin(S3C2410_GPE(10), S3C2410_GPE10_SDDAT3);
+ /* Configure GPE5...GPE10 pins in SD mode */
+ s3c_gpio_cfgall_range(S3C2410_GPE(5), 6, S3C_GPIO_SFN(2),
+ S3C_GPIO_PULL_NONE);
if (host->pdata->set_power)
host->pdata->set_power(ios->power_mode, ios->vdd);
@@ -1544,7 +1621,7 @@ static inline void s3cmci_debugfs_remove(struct s3cmci_host *host) { }
#endif /* CONFIG_DEBUG_FS */
-static int __devinit s3cmci_probe(struct platform_device *pdev)
+static int s3cmci_probe(struct platform_device *pdev)
{
struct s3cmci_host *host;
struct mmc_host *mmc;
@@ -1606,7 +1683,7 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!host->mem) {
dev_err(&pdev->dev,
- "failed to get io memory region resouce.\n");
+ "failed to get io memory region resource.\n");
ret = -ENOENT;
goto probe_free_gpio;
@@ -1630,7 +1707,7 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
host->irq = platform_get_irq(pdev, 0);
if (host->irq == 0) {
- dev_err(&pdev->dev, "failed to get interrupt resouce.\n");
+ dev_err(&pdev->dev, "failed to get interrupt resource.\n");
ret = -EINVAL;
goto probe_iounmap;
}
@@ -1823,7 +1900,7 @@ static void s3cmci_shutdown(struct platform_device *pdev)
clk_disable(host->clk);
}
-static int __devexit s3cmci_remove(struct platform_device *pdev)
+static int s3cmci_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct s3cmci_host *host = mmc_priv(mmc);
@@ -1874,58 +1951,18 @@ static struct platform_device_id s3cmci_driver_ids[] = {
MODULE_DEVICE_TABLE(platform, s3cmci_driver_ids);
-
-#ifdef CONFIG_PM
-
-static int s3cmci_suspend(struct device *dev)
-{
- struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev));
-
- return mmc_suspend_host(mmc);
-}
-
-static int s3cmci_resume(struct device *dev)
-{
- struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev));
-
- return mmc_resume_host(mmc);
-}
-
-static const struct dev_pm_ops s3cmci_pm = {
- .suspend = s3cmci_suspend,
- .resume = s3cmci_resume,
-};
-
-#define s3cmci_pm_ops &s3cmci_pm
-#else /* CONFIG_PM */
-#define s3cmci_pm_ops NULL
-#endif /* CONFIG_PM */
-
-
static struct platform_driver s3cmci_driver = {
.driver = {
.name = "s3c-sdi",
.owner = THIS_MODULE,
- .pm = s3cmci_pm_ops,
},
.id_table = s3cmci_driver_ids,
.probe = s3cmci_probe,
- .remove = __devexit_p(s3cmci_remove),
+ .remove = s3cmci_remove,
.shutdown = s3cmci_shutdown,
};
-static int __init s3cmci_init(void)
-{
- return platform_driver_register(&s3cmci_driver);
-}
-
-static void __exit s3cmci_exit(void)
-{
- platform_driver_unregister(&s3cmci_driver);
-}
-
-module_init(s3cmci_init);
-module_exit(s3cmci_exit);
+module_platform_driver(s3cmci_driver);
MODULE_DESCRIPTION("Samsung S3C MMC/SD Card Interface driver");
MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:15:24 +0000