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-rw-r--r--drivers/mmc/host/Kconfig8
-rw-r--r--drivers/mmc/host/Makefile2
-rw-r--r--drivers/mmc/host/tegra_sdio.c578
3 files changed, 1 insertions, 587 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 4b93bc4a82f0..a87c6a1aa974 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -67,14 +67,6 @@ config MMC_SDHCI_TEGRA
This enables the internal SDHCI-compatible interfaces in NVIDIA
Tegra SoCs
-config MMC_TEGRA_SDIO
- boolean "MMC support for SDIO interface on NVIDIA Tegra SoCs"
- depends on ARCH_TEGRA_1x_SOC && MACH_TEGRA_GENERIC
- help
- This enables the SDIO interface on NVIDIA Tegra SoCs
-
-
-
config MMC_RICOH_MMC
tristate "Ricoh MMC Controller Disabler (EXPERIMENTAL)"
depends on MMC_SDHCI_PCI
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index b95a3e450adc..2213463550ff 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -28,4 +28,4 @@ endif
obj-$(CONFIG_MMC_S3C) += s3cmci.o
obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o
obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o
-obj-$(CONFIG_MMC_TEGRA_SDIO) += tegra_sdio.o
+
diff --git a/drivers/mmc/host/tegra_sdio.c b/drivers/mmc/host/tegra_sdio.c
deleted file mode 100644
index 1503287880ec..000000000000
--- a/drivers/mmc/host/tegra_sdio.c
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * drivers/mmc/host/tegra_sdio.c
- *
- * MMC host driver for NVIDIA Tegra SoCs using NvDdk and NvRm APIs
- *
- * Copyright (C) 2009 NVIDIA Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-// #define DEBUG
-// #define VERBOSE_DEBUG
-
-/*
- * TODO:
- * 1. Revisit locking
- * 2. use zero-copy DMA instead of buffer copy.
- * 3. Detect card removal properly and handle the trasactions on the fly
- * 4. Don't know how to enable SD card irq.
- * 5. Some of the values like max clock, voltages supported and bit rates are
- * hard coded. Need to get those from DDK.
- */
-
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/workqueue.h>
-#include <linux/kthread.h>
-
-#include <linux/mmc/host.h>
-
-#include "mach/nvrm_linux.h"
-#include "nvddk_sdio.h"
-#include "nvos.h"
-#include "nvodm_sdio.h"
-
-#define DRIVER_DESC "Nvidia Tegra SDIO/SD driver"
-#define DRIVER_NAME "tegra_sdio"
-
-#ifdef VERBOSE_DEBUG
-#define DBG(f, x...) \
- pr_info(DRIVER_NAME " [%s()]: " f, __func__,## x)
-#else
-#define DBG(f, x...)
-#endif
-
-#define USE_SPINLOCK 0
-
-#if USE_SPINLOCK
-#define LOCK_T spinlock_t
-#define CREATELOCK(_l) spin_lock_init(&(_l))
-#define DELETELOCK(_l)
-#define LOCK(_l) spin_lock(&(_l))
-#define UNLOCK(_l) spin_unlock(&(_l))
-#define ATOMIC(_l,_f) spin_lock_irqsave(&(_l),(_f))
-#define UNATOMIC(_l,_f) spin_unlock_irqrestore(&(_l),(_f))
-#else
-#define LOCK_T struct mutex
-#define CREATELOCK(_l) mutex_init(&(_l))
-#define DELETELOCK(_l)
-#define LOCK(_l) mutex_lock(&(_l))
-#define UNLOCK(_l) mutex_unlock(&(_l))
-#define ATOMIC(_l,_f) local_irq_save((_f))
-#define UNATOMIC(_l,_f) local_irq_restore((_f))
-#endif
-
-struct tegra_sdio_host{
- struct mmc_host *mmc;
- struct platform_device *pdev;
- LOCK_T Lock;
- NvU32 Instance;
- NvDdkSdioSDBusVoltage voltage;
- struct work_struct Workqueue;
- struct mmc_request *req;
- NvBool bCardPresent;
- NvDdkSdioDeviceHandle hDdk;
- NvDdkSdioHostCapabilities hostCaps;
- NvDdkSdioInterfaceCapabilities interfaceCaps;
- NvOsSemaphoreHandle hSem;
- NvOsSemaphoreHandle hCardSemaphore;
- NvOdmSdioHandle hSdioHandle;
- struct task_struct *cardDetectTask;
- NvBool bKillCardDetectThread;
- unsigned int clock;
- unsigned int bus_width;
- NvU32 StartOffset;
-};
-
-#ifdef VERBOSE_DEBUG
-static void tegra_DumpPackets(struct mmc_data *data)
-{
- void *addr = (void *)sg_virt(data->sg);
- int i;
-
- for (i=0; i< sg_dma_len(data->sg); i++) {
- if (!(i%8))
- printk("\n");
- printk("%x ", ((unsigned char *)addr)[i]);
- }
- printk("\n");
-}
-#endif
-
-static int tegra_sdio_carddetect(void *arg)
-{
- struct tegra_sdio_host *host = (struct tegra_sdio_host *)arg;
- while (1) {
- NvOsSemaphoreWait(host->hCardSemaphore);
- if (host->bKillCardDetectThread)
- break;
- mmc_detect_change(host->mmc, 0);
- }
- return 0;
-}
-
-static inline NvDdkSdioRespType tegra_ConvertRespType(struct mmc_command *cmd)
-{
- NvDdkSdioRespType resp = 0;
-
- switch (mmc_resp_type(cmd)) {
- case MMC_RSP_NONE:
- resp = NvDdkSdioRespType_NoResp;
- break;
- case MMC_RSP_R1: /* MMC_RSP_R5 & MMC_RSP_R6 */
- resp = NvDdkSdioRespType_R1;
- break;
- case MMC_RSP_R1B:
- resp = NvDdkSdioRespType_R1b;
- break;
- case MMC_RSP_R2:
- resp = NvDdkSdioRespType_R2;
- break;
- case MMC_RSP_R3: /* Same as MMC_RSP_R4 */
- resp = NvDdkSdioRespType_R3;
- break;
- default:
- BUG_ON(1);
- }
- return resp;
-}
-
-
-static inline void tegra_GetRepsonse(struct tegra_sdio_host *host,
- struct mmc_command *cmd)
-{
- if (cmd->flags & MMC_RSP_136) {
- int i;
- NvU32 resp[4];
- NvDdkSdioGetCommandResponse(host->hDdk, 0,
- tegra_ConvertRespType(cmd), resp);
-
- /* Re-format to the way the linux stack expects */
- for (i = 0;i < 4;i++) {
- cmd->resp[i] = resp[3-i] << 8;
- if (i != 3)
- cmd->resp[i] |= ((NvU8 *)resp)[(3-i) * 4 -1];
- }
- } else {
- NvDdkSdioGetCommandResponse(host->hDdk, 0,
- tegra_ConvertRespType(cmd),
- (NvU32 *)(cmd->resp));
- }
- return;
-}
-
-//
-// Work queue which does all the heavy lifting.
-//
-
-static void tegra_sdio_wq(struct work_struct *w)
-{
- struct tegra_sdio_host *host = container_of(w, struct tegra_sdio_host,
- Workqueue);
- struct mmc_request *req;
- NvDdkSdioCommand cmd;
- NvU32 status;
- NvError err;
-
- LOCK(host->Lock);
-
- req = host->req;
-
- NvOsMemset(&cmd, 0, sizeof(cmd));
- cmd.CommandCode = req->cmd->opcode;
- cmd.CommandType = NvDdkSdioCommandType_Normal;
- cmd.CmdArgument = req->cmd->arg;
- cmd.ResponseType = tegra_ConvertRespType(req->cmd);
- if (req->data) {
- struct mmc_data *data = req->data;
- void *addr;
- int sg_cnt;
- int size;
- NvBool cmd12Enable = NV_FALSE;
-
- /* FIXME only works for block addressing cards! */
- if (host->StartOffset)
- cmd.CmdArgument += host->StartOffset >> 9;
-
- BUG_ON(data->blksz * data->blocks > 524288);
- BUG_ON(data->blksz > host->mmc->max_blk_size);
- BUG_ON(data->blocks > 65535);
-
- sg_cnt = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
- DMA_BIDIRECTIONAL);
- BUG_ON(sg_cnt != 1);
-
- cmd.IsDataCommand = NV_TRUE;
- cmd.BlockSize = data->blksz;
- if (data->stop) {
- /* only support CMD12 of all the stop commands.
- * This seems to work!
- */
- if (data->stop->opcode == 12 && !data->stop->arg) {
- cmd12Enable = NV_TRUE;
- } else {
- BUG_ON(1);
- }
- }
-
- size = data->blocks * data->blksz;
- addr = (void *)sg_virt(data->sg);
-
- if (data->flags & MMC_DATA_READ)
- err = NvDdkSdioRead(host->hDdk, size, addr, &cmd,
- cmd12Enable, &status);
- else
- err = NvDdkSdioWrite(host->hDdk, size, addr, &cmd,
- cmd12Enable, &status);
-
- if (err == NvSuccess && status == NvDdkSdioError_None) {
- req->cmd->error = 0;
- req->data->error = 0;
- data->bytes_xfered = data->blksz * data->blocks;
-
- } else {
- /* FIXME set the appropriate error code */
- DBG("Controller reported error 0x%x API error 0x%x\n",
- status, err);
- data->bytes_xfered = 0;
- req->cmd->error = -EIO;
- req->data->error = -EIO;
- }
-
- dma_unmap_sg(mmc_dev(host->mmc), data->sg,
- data->sg_len, DMA_BIDIRECTIONAL);
-
- tegra_GetRepsonse(host, req->cmd);
-
- } else {
- cmd.IsDataCommand = NV_FALSE;
- cmd.BlockSize = 512;
- err = NvDdkSdioSendCommand(host->hDdk, &cmd, &status);
- if (err == NvSuccess) {
- if (status == NvDdkSdioError_None)
- req->cmd->error = 0;
- else
- req->cmd->error = -EINVAL;
- } else
- DBG("DDK failed controller status = 0x%x\n", status);
-
- tegra_GetRepsonse(host, req->cmd);
- }
-
- UNLOCK(host->Lock);
-
- host->req = NULL;
- mmc_request_done(host->mmc, req);
- return;
-}
-
-//
-// MMC callbacks
-//
-
-static void tegra_sdio_request(struct mmc_host *mmc, struct mmc_request *req)
-{
- struct tegra_sdio_host *host;
-
- host = mmc_priv(mmc);
-
- LOCK(host->Lock);
-
- host->req = req;
- if (!host->bCardPresent) {
- host->req->cmd->error = -ENOMEDIUM;
- }
-
- schedule_work(&host->Workqueue);
- UNLOCK(host->Lock);
-}
-
-static int tegra_sdio_get_ro(struct mmc_host *mmc)
-{
- struct tegra_sdio_host *host;
- NvBool bIsWriteProtected = NV_FALSE;
- NvError err;
-
- host = mmc_priv(mmc);
- err = NvDdkSdioIsWriteProtected(host->hDdk, s_hGpioGlobal,
- &bIsWriteProtected);
- if (err != NvSuccess) {
- pr_err(DRIVER_NAME "IsWriteProtected error(%d)\n", err);
- if (err == NvError_SdioCardNotPresent) {
- return 0;
- } else {
- return -ENOSYS;
- }
- }
- return (bIsWriteProtected == NV_TRUE) ? 1 : 0;
-}
-
-
-static void tegra_sdio_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
- struct tegra_sdio_host *host;
- NvError err;
-
- host = mmc_priv(mmc);
-
- /*
- * We first get the MMC_POWER_OFF, then MMC_POWER_UP and
- * then the stack swtiches to the MMC_POWER_ON mode.
- */
- if (ios->power_mode == MMC_POWER_OFF) {
- /* How do we power off the controller and the io? */
- }
-
- /* Set the clock. FIXME DDK doesn't allow the clock to be set to 0 */
- if (ios->clock) {
- if (ios->clock != host->clock) {
- NvU32 configuredFreq;
- err = NvDdkSdioSetClockFrequency(host->hDdk,
- ios->clock/1000, &configuredFreq);
- BUG_ON(err!=NvSuccess);
- DBG("SDIO clock set to (%dKHz) req (%dKHz) err (%d)\n",
- configuredFreq, ios->clock/1000, err);
- host->clock = ios->clock;
- }
- }
-
- /* Set the bus width */
- if (host->bus_width != ios->bus_width) {
- NvDdkSdioDataWidth width;
- if (ios->bus_width == MMC_BUS_WIDTH_8) {
- width = NvDdkSdioDataWidth_8Bit;
- } else if (ios->bus_width == MMC_BUS_WIDTH_4) {
- width = NvDdkSdioDataWidth_4Bit;
- } else if (ios->bus_width == MMC_BUS_WIDTH_1) {
- width = NvDdkSdioDataWidth_1Bit;
- } else {
- /* Got wrong parameters */
- width = 0;
- BUG_ON(1);
- }
- NvDdkSdioSetHostBusWidth(host->hDdk, width);
- host->bus_width = ios->bus_width;
- }
-
- /* timming - is there any difference between SD high speed and mmc high
- * speed? */
- if (ios->timing == MMC_TIMING_SD_HS || ios->timing == MMC_TIMING_SD_HS)
- NvDdkSdioHighSpeedEnable(host->hDdk);
- else
- NvDdkSdioHighSpeedDisable(host->hDdk);
-
- return;
-}
-
-static int tegra_sdio_cardpresent(struct mmc_host *mmc)
-{
- struct tegra_sdio_host *host;
- NvBool bIsCardPResent;
-
- host = mmc_priv(mmc);
- NvDdkSdioIsCardInserted(host->hDdk, &bIsCardPResent);
-
- DBG("Sdio slot %s:%s\n", mmc_hostname(mmc),
- ((bIsCardPResent == NV_TRUE) ? "full" : "empty"));
-
- return (bIsCardPResent == NV_TRUE) ? 1 : 0;
-}
-
-static void tegra_sdio_enable_sdio_irq(struct mmc_host *mmc, int enable)
-{
- /* FIXME what should we do here? */
- return;
-}
-
-static struct mmc_host_ops tegra_sdio_ops =
-{
- .request = tegra_sdio_request,
- .set_ios = tegra_sdio_set_ios,
- .get_ro = tegra_sdio_get_ro,
- .get_cd = tegra_sdio_cardpresent,
- .enable_sdio_irq = tegra_sdio_enable_sdio_irq,
-};
-
-static int
-tegra_sdio_probe(struct platform_device *pdev)
-{
- struct tegra_sdio_host *host = NULL;
- struct mmc_host *mmc = NULL;
- int ret = -ENODEV;
- NvError err;
- struct tegra_sdio_pdata *pdata = pdev->dev.platform_data;
-
- mmc = mmc_alloc_host(sizeof(struct tegra_sdio_host), &pdev->dev);
- if (!mmc) {
- ret = -ENOMEM;
- goto fail;
- }
-
- dev_set_drvdata(&pdev->dev, host);
-
- host = mmc_priv(mmc);
- host->mmc = mmc;
- host->pdev = pdev;
- host->Instance = pdev->id;
- host->voltage = NvDdkSdioSDBusVoltage_invalid;
- CREATELOCK(host->Lock);
- INIT_WORK(&host->Workqueue, tegra_sdio_wq);
- host->hSdioHandle = NvOdmSdioOpen(pdev->id);
- if (!host->hSdioHandle) {
- goto fail;
- }
- NvDdkSdioGetCapabilities(s_hRmGlobal, &host->hostCaps,
- &host->interfaceCaps, pdev->id);
-
- /* Set SD/MMC configuration */
- mmc->ops = &tegra_sdio_ops;
- mmc->caps = 0;
- if (host->interfaceCaps.MmcInterfaceWidth >= 4) {
- mmc->caps |= MMC_CAP_4_BIT_DATA;
- if (host->interfaceCaps.MmcInterfaceWidth == 8) {
- mmc->caps |= MMC_CAP_8_BIT_DATA;
- }
- }
-
- mmc->caps |= MMC_CAP_SDIO_IRQ;
-
- /* Is there a caps bit to select if the controller supports high speed
- * mode or not? */
- if (1) {
- mmc->caps |= MMC_CAP_SD_HIGHSPEED;
- mmc->caps |= MMC_CAP_MMC_HIGHSPEED;
- }
-
- /* Supports upto to 52M i.e compliant to high speed and EMMC and
- * SD specs */
- mmc->f_max = 52000000;
- mmc->f_min = 400000;
- mmc->max_seg_size = 524288;
- mmc->max_req_size = 524288;
- mmc->max_phys_segs = 128;
- mmc->max_hw_segs = 1;
- mmc->max_blk_size = 512;
- mmc->max_blk_count = 65535;
-
- mmc->ocr_avail = 0;
- mmc->ocr_avail |= MMC_VDD_32_33|MMC_VDD_33_34;
-
- if ((NvOsSemaphoreCreate(&host->hCardSemaphore, 0) != NvSuccess)
- || (NvOsSemaphoreCreate(&host->hSem, 0) != NvSuccess)) {
- goto fail;
- }
-
- host->bKillCardDetectThread = NV_FALSE;
- host->cardDetectTask = kthread_create(tegra_sdio_carddetect,
- (void *)host, "sdio_card_detect/%d", pdev->id);
- if (IS_ERR(host->cardDetectTask)) {
- goto fail;
- }
- wake_up_process( host->cardDetectTask );
-
- err = NvDdkSdioOpen(s_hRmGlobal, s_hGpioGlobal, &host->hDdk,
- &host->hSem, &host->hCardSemaphore, pdev->id);
- if (err != NvSuccess) {
- goto fail;
- }
- host->clock = 0;
- host->bus_width = (unsigned int)-1;
- if (pdata)
- host->StartOffset = pdata->StartOffset;
-
- ret = mmc_add_host(mmc);
- if (ret) {
- dev_err(&pdev->dev, "failed to add mmc host\n");
- goto fail;
- }
-
- platform_set_drvdata(pdev, mmc);
- dev_info(&pdev->dev, "Initialization done\n");
-
- return 0;
-
-fail:
- if (host) {
- if (host->cardDetectTask) {
- host->bKillCardDetectThread = NV_TRUE;
- NvOsSemaphoreSignal(host->hCardSemaphore);
- (void)kthread_stop( host->cardDetectTask );
- }
- if (host->hSem)
- NvOsSemaphoreDestroy(host->hSem);
- if (host->hCardSemaphore)
- NvOsSemaphoreDestroy(host->hCardSemaphore);
- if (host->hSdioHandle)
- NvOdmSdioClose(host->hSdioHandle);
- if (host->hDdk)
- NvDdkSdioClose(host->hDdk);
- }
- if (mmc)
- mmc_free_host(mmc);
-
- return ret;
-}
-
-static int __devexit
-tegra_sdio_remove(struct platform_device *pdev)
-{
- struct tegra_sdio_host *host = dev_get_drvdata(&pdev->dev);
-
- if (!host) return 0;
-
- host->bKillCardDetectThread = NV_TRUE;
- NvOsSemaphoreSignal(host->hCardSemaphore);
- (void)kthread_stop( host->cardDetectTask );
-
- if (host->hDdk)
- NvDdkSdioClose(host->hDdk);
-
- if (host->hSdioHandle)
- NvOdmSdioClose(host->hSdioHandle);
-
- mmc_free_host(host->mmc);
- dev_set_drvdata(&pdev->dev, NULL);
- return 0;
-}
-
-static struct platform_driver tegra_sdio_driver = {
- .probe = tegra_sdio_probe,
- .remove = __devexit_p(tegra_sdio_remove),
- .suspend = NULL,
- .resume = NULL,
- .driver = {
- .name = "tegra-sdio",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init tegra_sdio_init(void)
-{
- return platform_driver_register(&tegra_sdio_driver);
-}
-
-static void __exit tegra_sdio_exit(void)
-{
- platform_driver_unregister(&tegra_sdio_driver);
-}
-
-module_init(tegra_sdio_init);
-module_exit(tegra_sdio_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
-
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-11 18:01:05 +0000