#include <linux/module.h>
#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/scatterlist.h>
#include <asm/sizes.h>
#include "pxamci.h"
-#ifdef CONFIG_MMC_DEBUG
-#define DBG(x...) printk(KERN_DEBUG x)
-#else
-#define DBG(x...) do { } while (0)
-#endif
-
#define DRIVER_NAME "pxa2xx-mci"
#define NR_SG 1
unsigned int dma_dir;
};
-static inline unsigned int ns_to_clocks(unsigned int ns)
-{
- return (ns * (CLOCKRATE / 1000000) + 999) / 1000;
-}
-
static void pxamci_stop_clock(struct pxamci_host *host)
{
if (readl(host->base + MMC_STAT) & STAT_CLK_EN) {
static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
{
unsigned int nob = data->blocks;
+ unsigned long long clks;
unsigned int timeout;
u32 dcmd;
int i;
nob = 0xffff;
writel(nob, host->base + MMC_NOB);
- writel(1 << data->blksz_bits, host->base + MMC_BLKLEN);
+ writel(data->blksz, host->base + MMC_BLKLEN);
- timeout = ns_to_clocks(data->timeout_ns) + data->timeout_clks;
+ clks = (unsigned long long)data->timeout_ns * CLOCKRATE;
+ do_div(clks, 1000000000UL);
+ timeout = (unsigned int)clks + (data->timeout_clks << host->clkrt);
writel((timeout + 255) / 256, host->base + MMC_RDTO);
if (data->flags & MMC_DATA_READ) {
if (cmd->flags & MMC_RSP_BUSY)
cmdat |= CMDAT_BUSY;
- switch (cmd->flags & (MMC_RSP_MASK | MMC_RSP_CRC)) {
- case MMC_RSP_SHORT | MMC_RSP_CRC:
+#define RSP_TYPE(x) ((x) & ~(MMC_RSP_BUSY|MMC_RSP_OPCODE))
+ switch (RSP_TYPE(mmc_resp_type(cmd))) {
+ case RSP_TYPE(MMC_RSP_R1): /* r1, r1b, r6 */
cmdat |= CMDAT_RESP_SHORT;
break;
- case MMC_RSP_SHORT:
+ case RSP_TYPE(MMC_RSP_R3):
cmdat |= CMDAT_RESP_R3;
break;
- case MMC_RSP_LONG | MMC_RSP_CRC:
+ case RSP_TYPE(MMC_RSP_R2):
cmdat |= CMDAT_RESP_R2;
break;
default:
static void pxamci_finish_request(struct pxamci_host *host, struct mmc_request *mrq)
{
- DBG("PXAMCI: request done\n");
host->mrq = NULL;
host->cmd = NULL;
host->data = NULL;
if ((cmd->resp[0] & 0x80000000) == 0)
cmd->error = MMC_ERR_BADCRC;
} else {
- DBG("ignoring CRC from command %d - *risky*\n",cmd->opcode);
+ pr_debug("ignoring CRC from command %d - *risky*\n",cmd->opcode);
}
#else
cmd->error = MMC_ERR_BADCRC;
* data blocks as being in error.
*/
if (data->error == MMC_ERR_NONE)
- data->bytes_xfered = data->blocks << data->blksz_bits;
+ data->bytes_xfered = data->blocks * data->blksz;
else
data->bytes_xfered = 0;
pxamci_disable_irq(host, DATA_TRAN_DONE);
host->data = NULL;
- if (host->mrq->stop && data->error == MMC_ERR_NONE) {
+ if (host->mrq->stop) {
pxamci_stop_clock(host);
pxamci_start_cmd(host, host->mrq->stop, 0);
} else {
ireg = readl(host->base + MMC_I_REG);
- DBG("PXAMCI: irq %08x\n", ireg);
-
if (ireg) {
unsigned stat = readl(host->base + MMC_STAT);
- DBG("PXAMCI: stat %08x\n", stat);
+ pr_debug("PXAMCI: irq %08x stat %08x\n", ireg, stat);
if (ireg & END_CMD_RES)
handled |= pxamci_cmd_done(host, stat);
pxamci_start_cmd(host, mrq->cmd, cmdat);
}
-static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+static int pxamci_get_ro(struct mmc_host *mmc)
{
struct pxamci_host *host = mmc_priv(mmc);
- DBG("pxamci_set_ios: clock %u power %u vdd %u.%02u\n",
- ios->clock, ios->power_mode, ios->vdd / 100,
- ios->vdd % 100);
+ if (host->pdata && host->pdata->get_ro)
+ return host->pdata->get_ro(mmc->dev);
+ /* Host doesn't support read only detection so assume writeable */
+ return 0;
+}
+
+static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+ struct pxamci_host *host = mmc_priv(mmc);
if (ios->clock) {
unsigned int clk = CLOCKRATE / ios->clock;
host->cmdat |= CMDAT_INIT;
}
- DBG("pxamci_set_ios: clkrt = %x cmdat = %x\n",
- host->clkrt, host->cmdat);
+ pr_debug("PXAMCI: clkrt = %x cmdat = %x\n",
+ host->clkrt, host->cmdat);
}
static struct mmc_host_ops pxamci_ops = {
.request = pxamci_request,
+ .get_ro = pxamci_get_ro,
.set_ios = pxamci_set_ios,
};
static irqreturn_t pxamci_detect_irq(int irq, void *devid, struct pt_regs *regs)
{
- mmc_detect_change(devid);
+ struct pxamci_host *host = mmc_priv(devid);
+
+ mmc_detect_change(devid, host->pdata->detect_delay);
return IRQ_HANDLED;
}
-static int pxamci_probe(struct device *dev)
+static int pxamci_probe(struct platform_device *pdev)
{
- struct platform_device *pdev = to_platform_device(dev);
struct mmc_host *mmc;
struct pxamci_host *host = NULL;
struct resource *r;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (!r || irq == NO_IRQ)
+ if (!r || irq < 0)
return -ENXIO;
r = request_mem_region(r->start, SZ_4K, DRIVER_NAME);
if (!r)
return -EBUSY;
- mmc = mmc_alloc_host(sizeof(struct pxamci_host), dev);
+ mmc = mmc_alloc_host(sizeof(struct pxamci_host), &pdev->dev);
if (!mmc) {
ret = -ENOMEM;
goto out;
host->pdata->ocr_mask :
MMC_VDD_32_33|MMC_VDD_33_34;
- host->sg_cpu = dma_alloc_coherent(dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
+ host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
if (!host->sg_cpu) {
ret = -ENOMEM;
goto out;
if (ret)
goto out;
- dev_set_drvdata(dev, mmc);
+ platform_set_drvdata(pdev, mmc);
if (host->pdata && host->pdata->init)
- host->pdata->init(dev, pxamci_detect_irq, mmc);
+ host->pdata->init(&pdev->dev, pxamci_detect_irq, mmc);
mmc_add_host(mmc);
if (host->base)
iounmap(host->base);
if (host->sg_cpu)
- dma_free_coherent(dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
+ dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
}
if (mmc)
mmc_free_host(mmc);
return ret;
}
-static int pxamci_remove(struct device *dev)
+static int pxamci_remove(struct platform_device *pdev)
{
- struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct mmc_host *mmc = platform_get_drvdata(pdev);
- dev_set_drvdata(dev, NULL);
+ platform_set_drvdata(pdev, NULL);
if (mmc) {
struct pxamci_host *host = mmc_priv(mmc);
if (host->pdata && host->pdata->exit)
- host->pdata->exit(dev, mmc);
+ host->pdata->exit(&pdev->dev, mmc);
mmc_remove_host(mmc);
free_irq(host->irq, host);
pxa_free_dma(host->dma);
iounmap(host->base);
- dma_free_coherent(dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
+ dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
release_resource(host->res);
}
#ifdef CONFIG_PM
-static int pxamci_suspend(struct device *dev, pm_message_t state, u32 level)
+static int pxamci_suspend(struct platform_device *dev, pm_message_t state)
{
- struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct mmc_host *mmc = platform_get_drvdata(dev);
int ret = 0;
- if (mmc && level == SUSPEND_DISABLE)
+ if (mmc)
ret = mmc_suspend_host(mmc, state);
return ret;
}
-static int pxamci_resume(struct device *dev, u32 level)
+static int pxamci_resume(struct platform_device *dev)
{
- struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct mmc_host *mmc = platform_get_drvdata(dev);
int ret = 0;
- if (mmc && level == RESUME_ENABLE)
+ if (mmc)
ret = mmc_resume_host(mmc);
return ret;
#define pxamci_resume NULL
#endif
-static struct device_driver pxamci_driver = {
- .name = DRIVER_NAME,
- .bus = &platform_bus_type,
+static struct platform_driver pxamci_driver = {
.probe = pxamci_probe,
.remove = pxamci_remove,
.suspend = pxamci_suspend,
.resume = pxamci_resume,
+ .driver = {
+ .name = DRIVER_NAME,
+ },
};
static int __init pxamci_init(void)
{
- return driver_register(&pxamci_driver);
+ return platform_driver_register(&pxamci_driver);
}
static void __exit pxamci_exit(void)
{
- driver_unregister(&pxamci_driver);
+ platform_driver_unregister(&pxamci_driver);
}
module_init(pxamci_init);
git://git.onelab.eu / linux-2.6.git / blobdiff