/*
* Probe for the device
*/
static int __init rk28_sdmmc0_probe(struct platform_device *pdev)
{
struct mmc_host *mmc;
struct rk28mci_host *host;
struct resource *res;
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENXIO;
if (!request_mem_region(res->start, res->end - res->start + 1, DRIVER_NAME))
return -EBUSY;
mmc = mmc_alloc_host(sizeof(struct rk28mci_host), &pdev->dev);
if (!mmc)
{
ret = -ENOMEM;
dev_dbg(&pdev->dev, "couldn't allocate mmc host\n");
goto fail6;
}
mmc->ops = &rk28_sdmmc0_ops;
mmc->f_min = FOD_FREQ * 1000;
mmc->f_max = SDHC_FPP_FREQ;
mmc->ocr_avail = MMC_VDD_27_28|MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31
| MMC_VDD_31_32|MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_34_35| MMC_VDD_35_36; ///set valid volage 2.7---3.6
//printk("%s..%s..%d ********host availd ocr=0x%x====xbw===*******************\n",__FUNCTION__,__FILE__,__LINE__, mmc->ocr_avail);
mmc->max_blk_size = 4095;
mmc->max_blk_count = 1024;
mmc->max_req_size = mmc->max_blk_count*512; // 512K
mmc->max_seg_size = mmc->max_req_size;
host = mmc_priv(mmc);
host->mmc = mmc;
host->buffer = NULL;
host->bus_mode = 0;
host->board = pdev->dev.platform_data;
host->res = res;
testhost = host;
sd_cdt_resume = 0;
sd_is_suspend_mmc = 0;
sd_is_suspend_block = 0;
do_Resume = 0;
host->cmdr = 0;
host->lockscu = 0; //no lock SCU
host->cmderror = 0;
host->complete_dma = 0; //DMA channel has not request.
host->requestDmaError = 0;//
setup_timer(&host->switch_timer, rk28_sdmmc0_switch_timer, (unsigned long) host);
spin_lock_init(&host->complete_lock);
/*
android_suspend_lock_t sdmmc0_request_lock; //used to the phase of request.
android_suspend_lock_t sdmmc0_full_wake_lock; //used to the phase of removal/insertion,
android_suspend_lock_t sdmmc0_rescan_lock; //used to the phase of rescaning the card.
android_suspend_lock_t sdmmc0_initSd_lock; //used to the phase of initialization.
android_suspend_lock_t sdmmc0_rw_prcess_lock; //used to the phase of Read/Write.
*/
#ifdef CONFIG_ANDROID_POWER
sdmmc0_request_lock.name = "sdmmc-Req";
android_init_suspend_lock(&sdmmc0_request_lock);
sdmmc0_full_wake_lock.name = "sdmmc-full-Req";
android_init_suspend_lock(&sdmmc0_full_wake_lock);
sdmmc0_rescan_lock.name = "sdmmc-rescan";
android_init_suspend_lock(&sdmmc0_rescan_lock);
sdmmc0_initSd_lock.name = "sdmmc-initsd";
android_init_suspend_lock(&sdmmc0_initSd_lock);
sdmmc0_rw_prcess_lock.name = "sdmmc-rw";
android_init_suspend_lock(&sdmmc0_rw_prcess_lock);
#endif
sdmmc0_disable_Irq_ForRemoval = 0;
spin_lock_init( &sdmmc0_spinlock);
mmc->caps |= ( MMC_CAP_MULTIWRITE | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED);
if (1)//if (host->board->wire4)
{
mmc->caps |= MMC_CAP_4_BIT_DATA;
}
/*
* Map I/O region
*/
host->baseaddr = (void * __iomem)SDMMC0_BASE_ADDR_VA; //
if (!host->baseaddr)
{
ret = -ENOMEM;
goto fail1;
}
//register SCU
rockchip_scu_register( SCU_IPID_SDMMC0, SCU_MODE_FREQ, 50, NULL);
/*
* Allocate the MCI interrupt
*/
host->irq = platform_get_irq(pdev, 0);
ret = request_irq(host->irq, rk28_sdmmc_irq, IRQF_SHARED, mmc_hostname(mmc), host);
if (ret)
{
printk("%s..%s..%d **********request irq failue====xbw===*******************\n",__FUNCTION__,__FILE__,__LINE__);
goto fail0;
}
platform_set_drvdata(pdev, mmc);
//printk("%s..%s..%d **********SD probe Over. now it begin to mmc_add_host====xbw===*******************\n",__FUNCTION__,__FILE__,__LINE__);
mmc_add_host(mmc);
rk28_sdmmc0_add_attr(pdev);
return 0;
fail0:
iounmap(host->baseaddr);
fail1:
mmc_free_host(mmc);
fail6:
release_mem_region(res->start, res->end - res->start + 1);
dev_err(&pdev->dev, "probe failed, err %d\n", ret);
return ret;
}
static int __init rk28_sdio_probe(struct platform_device *pdev)
{
int ret = 0;
struct resource *res;
struct mmc_host *mci_host;
struct rk28_sdio_priv *host_priv;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENXIO;
if (!request_mem_region(res->start, res->end - res->start + 1, DRIVER_NAME))
return -EBUSY;
mci_host = mmc_alloc_host(sizeof(struct rk28_sdio_priv), &pdev->dev);
if (mci_host == NULL)
{
printk("Allocate MCI host fail.\n");
ret = -ENOMEM;
goto release_region;
}
/* Initiating mci_host */
mci_host->ops = &rk28_sdio_host_ops;
mci_host->f_min = 370000; //370kHz~25MHz
mci_host->f_max = 25000000;
mci_host->ocr_avail = MMC_VDD_26_27|MMC_VDD_27_28|MMC_VDD_28_29|MMC_VDD_29_30|
MMC_VDD_30_31|MMC_VDD_31_32|MMC_VDD_32_33 | MMC_VDD_33_34;
mci_host->max_blk_size = 4095;
mci_host->max_blk_count = mci_host->max_req_size;
mci_host->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
#if (SDIO_DATA_WIDTH == SDIO_DATA_WIDTH_4)
mci_host->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
#endif
host_priv = mmc_priv(mci_host);
memset(host_priv, 0, sizeof(struct rk28_sdio_priv));
host_priv->mmc = mci_host;
host_priv->iomem_base = (void * __iomem)SDMMC1_BASE_ADDR_VA;
host_priv->lock = SPIN_LOCK_UNLOCKED;
host_priv->dma_chan = -1;
ret = rk28_dma_request(RK28_DMA_SD_MMC1, rk28_sdio_dma_done, host_priv);
if (ret != 0)
{
printk("Request DMA channel for SDMMC1 failed.\n");
goto free_host;
}
host_priv->dma_chan = RK28_DMA_SD_MMC1;
rk28_sdio_dma_switch(host_priv, DO_ENABLE, DO_LOCK);
if (rk28_sdio_hw_init(host_priv) != 0)
{
ret = -ENXIO;
goto free_host;
}
host_priv->irq = platform_get_irq(pdev, 0);
ret = request_irq(host_priv->irq, rk28_sdio_mci_irq, IRQF_SHARED,
mmc_hostname(mci_host), host_priv);
if (ret != 0)
{
printk("Request IRQ for RK28 Host fail.\n");
ret = -ENOMEM;
goto free_host;
}
platform_set_drvdata(pdev, mci_host);
/*
* Max frequency of AHB is 166, for guarantee divider=6,
* we set the max frequency for SDMMC1 as 26.
*/
rockchip_scu_register( SCU_IPID_SDMMC1, SCU_MODE_FREQ, 26, NULL);
mmc_add_host(mci_host);
wifi_mmc_host = mci_host;
rk28_sdio_host_irq_switch(host_priv, DO_ENABLE);
return 0;
free_host:
mmc_free_host(mci_host);
release_region:
release_mem_region(res->start, res->end - res->start + 1);
return ret;
}
