#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
mci_writel(host, BMOD, temp);
}
-static void dw_mci_idmac_complete_dma(struct dw_mci *host)
+static void dw_mci_idmac_complete_dma(void *arg)
{
- struct mmc_data *data = host->data;
+ struct dw_mci *host = arg;
+ struct mmc_data *data = host->data;
- dev_vdbg(host->dev, "DMA complete\n");
+ dev_vdbg(host->dev, "DMA complete\n");
- /*
- MMC_DBG_CMD_FUNC(host->mmc," DMA complete cmd=%d(arg=0x%x), blocks=%d,blksz=%d[%s]", \
- host->mrq->cmd->opcode,host->mrq->cmd->arg,data->blocks,data->blksz,mmc_hostname(host->mmc));
- */
-
- host->dma_ops->cleanup(host);
+ /*
+ MMC_DBG_CMD_FUNC(host->mmc," DMA complete cmd=%d(arg=0x%x), blocks=%d,blksz=%d[%s]", \
+ host->mrq->cmd->opcode,host->mrq->cmd->arg,
+ data->blocks,data->blksz,mmc_hostname(host->mmc));
+ */
+
+ host->dma_ops->cleanup(host);
/*
* If the card was removed, data will be NULL. No point in trying to
* send the stop command or waiting for NBUSY in this case.
*/
- if (data) {
- set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
- tasklet_schedule(&host->tasklet);
- }
+ if(data){
+ set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
+ tasklet_schedule(&host->tasklet);
+ }
}
static void dw_mci_translate_sglist(struct dw_mci *host, struct mmc_data *data,
};
#endif /* CONFIG_MMC_DW_IDMAC */
+#ifdef CONFIG_MMC_DW_EDMAC
+static void dw_mci_edma_cleanup(struct dw_mci *host)
+{
+ struct mmc_data *data = host->data;
+
+ if (data)
+ if (!data->host_cookie)
+ dma_unmap_sg(host->dev,
+ data->sg, data->sg_len,
+ dw_mci_get_dma_dir(data));
+}
+
+static void dw_mci_edmac_stop_dma(struct dw_mci *host)
+{
+ dmaengine_terminate_all(host->dms->ch);
+}
+
+static void dw_mci_edmac_complete_dma(void *arg)
+{
+ struct dw_mci *host = arg;
+ struct mmc_data *data = host->data;
+
+ dev_vdbg(host->dev, "DMA complete\n");
+
+ if(data)
+ if(data->flags & MMC_DATA_READ)
+ /* Invalidate cache after read */
+ dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg,
+ data->sg_len, DMA_FROM_DEVICE);
+
+ host->dma_ops->cleanup(host);
+
+ /*
+ * If the card was removed, data will be NULL. No point in trying to
+ * send the stop command or waiting for NBUSY in this case.
+ */
+ if (data) {
+ set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
+ tasklet_schedule(&host->tasklet);
+ }
+}
+
+static void dw_mci_edmac_start_dma(struct dw_mci *host, unsigned int sg_len)
+{
+ struct dma_slave_config slave_config;
+ struct dma_async_tx_descriptor *desc = NULL;
+ struct scatterlist *sgl = host->data->sg;
+ u32 sg_elems = host->data->sg_len;
+ int ret = 0;
+
+ /* Set external dma config: burst size, burst width*/
+ slave_config.dst_addr = (dma_addr_t)(host->phy_regs + host->data_offset);
+ slave_config.src_addr = slave_config.dst_addr;
+ slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ slave_config.src_addr_width = slave_config.dst_addr_width;
+
+ /* Match FIFO dma burst MSIZE with external dma config*/
+ slave_config.dst_maxburst = ((host->fifoth_val) >> 28) && 0x7;
+ slave_config.src_maxburst = slave_config.dst_maxburst;
+
+ if(host->data->flags & MMC_DATA_WRITE){
+ slave_config.direction = DMA_MEM_TO_DEV;
+ ret = dmaengine_slave_config(host->dms->ch, &slave_config);
+ if(ret){
+ dev_err(host->dev, "error in dw_mci edma configuration.\n");
+ return;
+ }
+
+ desc = dmaengine_prep_slave_sg(host->dms->ch, sgl, sg_len,
+ DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if(!desc){
+ dev_err(host->dev, "We cannot prepare for the dw_mci slave edma!\n");
+ return;
+ }
+ /* Set dw_mci_edmac_complete_dma as callback */
+ desc->callback = dw_mci_edmac_complete_dma;
+ desc->callback_param = (void *)host;
+ dmaengine_submit(desc);
+
+ /* Flush cache before write */
+ dma_sync_sg_for_device(mmc_dev(host->mmc), sgl,
+ sg_elems, DMA_TO_DEVICE);
+ dma_async_issue_pending(host->dms->ch);
+ }else{
+ /* MMC_DATA_READ*/
+ slave_config.direction = DMA_DEV_TO_MEM;
+ ret = dmaengine_slave_config(host->dms->ch, &slave_config);
+ if(ret){
+ dev_err(host->dev, "error in dw_mci edma configuration.\n");
+ return;
+ }
+ desc = dmaengine_prep_slave_sg(host->dms->ch, sgl, sg_len,
+ DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if(!desc){
+ dev_err(host->dev, "We cannot prepare for the dw_mci slave edma!\n");
+ return;
+ }
+ /* set dw_mci_edmac_complete_dma as callback */
+ desc->callback = dw_mci_edmac_complete_dma;
+ desc->callback_param = (void *)host;
+ dmaengine_submit(desc);
+ dma_async_issue_pending(host->dms->ch);
+ }
+}
+
+static int dw_mci_edmac_init(struct dw_mci *host)
+{
+ MMC_DBG_BOOT_FUNC(host->mmc,"dw_mci_edmac_init: Soc is 0x%x [%s]\n",
+ (unsigned int)(rockchip_soc_id & ROCKCHIP_CPU_MASK), mmc_hostname(host->mmc));
+
+ /* 1) request external dma channel, SHOULD decide chn in dts */
+ host->dms = (struct dw_mci_dma_slave *)kmalloc(sizeof(struct dw_mci_dma_slave),GFP_KERNEL);
+ host->dms->ch = dma_request_slave_channel(host->dev, "dw_mci");
+ if (!host->dms->ch){
+ dev_err(host->dev, "Failed to get external DMA channel: channel id = %d\n",
+ host->dms->ch->chan_id);
+ goto err_exit;
+ }
+
+ /* anything? */
+
+ return 0;
+
+err_exit:
+ return -ENODEV;
+
+}
+
+static void dw_mci_edmac_exit(struct dw_mci *host)
+{
+ dma_release_channel(host->dms->ch);
+}
+
+static const struct dw_mci_dma_ops dw_mci_edmac_ops = {
+ .init = dw_mci_edmac_init,
+ .exit = dw_mci_edmac_exit,
+ .start = dw_mci_edmac_start_dma,
+ .stop = dw_mci_edmac_stop_dma,
+ .complete = dw_mci_edmac_complete_dma,
+ .cleanup = dw_mci_edma_cleanup,
+};
+#endif
static int dw_mci_pre_dma_transfer(struct dw_mci *host,
struct mmc_data *data,
bool next)
static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data)
{
-#ifdef CONFIG_MMC_DW_IDMAC
+#if defined(CONFIG_MMC_DW_IDMAC) || defined(CONFIG_MMC_DW_EDMAC)
unsigned int blksz = data->blksz;
const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
u32 fifo_width = 1 << host->data_shift;
MMC_DBG_BOOT_FUNC(host->mmc,
"dw_mci_setup_bus: argue clk_mmc workaround out %dHz for init[%s]",
clock * 2, mmc_hostname(host->mmc));
- /* RK3288 clk_mmc will change parents to 24MHz xtal*/
+ /* clk_mmc will change parents to 24MHz xtal*/
clk_set_rate(host->clk_mmc, clock * 2);
div = 0;
static int dw_mci_set_sdio_status(struct mmc_host *mmc, int val)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
- /*struct dw_mci_board *brd = slot->host->pdata;*/
- struct dw_mci *host = slot->host;
+ struct dw_mci *host = slot->host;
+ /*struct dw_mci_board *brd = slot->host->pdata;*/
+
if (!(mmc->restrict_caps & RESTRICT_CARD_TYPE_SDIO))
return 0;
spin_lock_bh(&host->lock);
- if(val){
+
+ if(val)
set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
+ else
+ clear_bit(DW_MMC_CARD_PRESENT, &slot->flags);
+
+ spin_unlock_bh(&host->lock);
+
+ if(test_bit(DW_MMC_CARD_PRESENT, &slot->flags)){
if(__clk_is_enabled(host->hclk_mmc) == false)
clk_prepare_enable(host->hclk_mmc);
if(__clk_is_enabled(host->clk_mmc) == false)
clk_prepare_enable(host->clk_mmc);
}else{
- clear_bit(DW_MMC_CARD_PRESENT, &slot->flags);
if(__clk_is_enabled(host->clk_mmc) == true)
clk_disable_unprepare(slot->host->clk_mmc);
if(__clk_is_enabled(host->hclk_mmc) == true)
clk_disable_unprepare(slot->host->hclk_mmc);
}
- spin_unlock_bh(&host->lock);
- mmc_detect_change(slot->mmc, 20);
+ mmc_detect_change(slot->mmc, 20);
return 0;
}
else
present = (mci_readl(slot->host, CDETECT) & (1 << slot->id))
== 0 ? 1 : 0;
-
spin_lock_bh(&host->lock);
if (present) {
set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
};
static void dw_mci_do_grf_io_domain_switch(struct dw_mci *host, u32 voltage)
{
- if(cpu_is_rk3288()){
- if(voltage == IO_DOMAIN_33)
+ switch(voltage){
+ case IO_DOMAIN_33:
voltage = 0;
- else if(voltage == IO_DOMAIN_18)
+ break;
+ case IO_DOMAIN_18:
voltage = 1;
- else
- MMC_DBG_ERR_FUNC(host->mmc,"%s : err io domain voltage [%s]\n",
- __FUNCTION__, mmc_hostname(host->mmc));
+ break;
+ case IO_DOMAIN_12:
+ MMC_DBG_ERR_FUNC(host->mmc,"%s : Not support io domain voltage [%s]\n",
+ __FUNCTION__, mmc_hostname(host->mmc));
+ break;
+ default:
+ MMC_DBG_ERR_FUNC(host->mmc,"%s : Err io domain voltage [%s]\n",
+ __FUNCTION__, mmc_hostname(host->mmc));
+ break;
+ }
+
+ if(cpu_is_rk3288()){
if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD)
grf_writel((voltage << 7) | (1 << 23), RK3288_GRF_IO_VSEL);
else
return ;
}else{
- MMC_DBG_ERR_FUNC(host->mmc,"%s : unknown chip [%s]\n",
- __FUNCTION__, mmc_hostname(host->mmc));
+ MMC_DBG_ERR_FUNC(host->mmc,"%s : unknown chip [%s]\n",
+ __FUNCTION__, mmc_hostname(host->mmc));
}
}
struct dw_mci_tuning_data tuning_data;
int err = -ENOSYS;
+ /* Fixme: 3036/3126 doesn't support 1.8 io domain, no sense exe tuning
+ if(cpu_is_3036() || cpu_is_3126())
+ return ENOSYS;
+ AND
+ what about audi-b?
+ */
+
if (opcode == MMC_SEND_TUNING_BLOCK_HS200) {
if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
tuning_data.blk_pattern = tuning_blk_pattern_8bit;
struct mmc_host *prev_mmc = host->cur_slot->mmc;
WARN_ON(host->cmd || host->data);
-
+
+ del_timer_sync(&host->dto_timer);
dw_mci_deal_data_end(host, mrq);
if(mrq->cmd)
{
if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SDIO)
host->cmd_rto += 1;
-
- cmd->error = -ETIMEDOUT;
- }
- else if ((cmd->flags & MMC_RSP_CRC) && (status & SDMMC_INT_RCRC))
+
+ cmd->error = -ETIMEDOUT;
+ del_timer_sync(&host->dto_timer);
+ }else if ((cmd->flags & MMC_RSP_CRC) && (status & SDMMC_INT_RCRC)){
+ del_timer_sync(&host->dto_timer);
cmd->error = -EILSEQ;
- else if (status & SDMMC_INT_RESP_ERR)
+ }else if (status & SDMMC_INT_RESP_ERR){
+ del_timer_sync(&host->dto_timer);
cmd->error = -EIO;
- else
+ }else{
cmd->error = 0;
+ }
MMC_DBG_CMD_FUNC(host->mmc, " command complete, cmd=%d,cmdError=%d [%s]",
cmd->opcode, cmd->error,mmc_hostname(host->mmc));
if (cmd->error) {
+ del_timer_sync(&host->dto_timer);
if(MMC_SEND_STATUS != cmd->opcode)
if(host->cmd_rto >= SDMMC_CMD_RTO_MAX_HOLD){
MMC_DBG_ERR_FUNC(host->mmc, " command complete, cmd=%d,cmdError=%d [%s]",\
goto unlock;
}
- if (cmd->data && cmd->error) {
+ if (cmd->data && cmd->error) {
+ del_timer_sync(&host->dto_timer); /* delete the timer for INT_DTO */
dw_mci_stop_dma(host);
#if 1
- if (data->stop) {
- send_stop_cmd(host, data);
- state = STATE_SENDING_STOP;
- break;
- } else {
- host->data = NULL;
- }
+ if (data->stop) {
+ send_stop_cmd(host, data);
+ state = STATE_SENDING_STOP;
+ break;
+ }else{
+ host->data = NULL;
+ }
#else
send_stop_abort(host, data);
state = STATE_SENDING_STOP;
break;
#endif
+ set_bit(EVENT_DATA_COMPLETE, &host->completed_events);
}
if (!host->mrq->data || cmd->error) {
break;
dw_mci_deal_data_end(host, host->mrq);
+ del_timer_sync(&host->dto_timer); //delete the timer for INT_DTO
MMC_DBG_INFO_FUNC(host->mmc,
"Pre-state[%d]-->NowState[%d]: STATE_DATA_BUSY, after EVENT_DATA_COMPLETE. [%s]", \
prev_state,state,mmc_hostname(host->mmc));
static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
{
- if (!host->cmd_status)
+ u32 multi, unit;
+
+ if (!host->cmd_status)
host->cmd_status = status;
- smp_wmb();
+ if(!host->cmd)
+ goto cmd_exit;
- set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
+ if((MMC_STOP_TRANSMISSION != host->cmd->opcode))
+ {
+ unit = 2*1024*1024;
+ multi = mci_readl(host, BYTCNT)/unit;
+ multi += ((mci_readl(host, BYTCNT) % unit) ? 1 :0 );
+ multi = (multi > 0) ? multi : 1;
+ multi += (host->cmd->retries > 2)? 2 : host->cmd->retries;
+ mod_timer(&host->dto_timer, jiffies + msecs_to_jiffies(4500 * multi));//max wait 8s larger
+ }
+
+cmd_exit:
+ smp_wmb();
+ set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
tasklet_schedule(&host->tasklet);
}
int i;
pending = mci_readl(host, MINTSTS); /* read-only mask reg */
- //if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD)
- // printk("%s pending: 0x%08x\n",__func__,pending);
+
/*
- * DTO fix - version 2.10a and below, and only if internal DMA
- * is configured.
- */
- if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO) {
+ * DTO fix - version 2.10a and below, and only if internal DMA
+ * is configured.
+ */
+ if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO) {
if (!pending &&
((mci_readl(host, STATUS) >> 17) & 0x1fff))
pending |= SDMMC_INT_DATA_OVER;
if (pending & SDMMC_INT_DATA_OVER) {
mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER);
+ del_timer(&host->dto_timer); /* delete the timer for INT_DTO */
MMC_DBG_CMD_FUNC(host->mmc, "SDMMC_INT_DATA_OVER, INT-pending=0x%x. [%s]",pending,mmc_hostname(host->mmc));
if (!host->data_status)
host->data_status = pending;
if (pending & (SDMMC_IDMAC_INT_TI | SDMMC_IDMAC_INT_RI)) {
mci_writel(host, IDSTS, SDMMC_IDMAC_INT_TI | SDMMC_IDMAC_INT_RI);
mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI);
- host->dma_ops->complete(host);
+ host->dma_ops->complete((void *)host);
}
#endif
rk_send_wakeup_key();//wake up system
spin_lock_bh(&host->lock);
+ del_timer(&host->dto_timer); /* delete the timer for INT_DTO */
/* Card change detected */
slot->last_detect_state = present;
if (mrq->stop)
mrq->stop->error = -ENOMEDIUM;
- MMC_DBG_CMD_FUNC(host->mmc, "dw_mci_work--reqeuest done, cmd=%d [%s]",mrq->cmd->opcode, mmc_hostname(mmc));
+ MMC_DBG_CMD_FUNC(host->mmc, "dw_mci_work--reqeuest done, cmd=%d [%s]",
+ mrq->cmd->opcode, mmc_hostname(mmc));
spin_unlock(&host->lock);
mmc_request_done(slot->mmc, mrq);
}
mmc_detect_change(slot->mmc,
- msecs_to_jiffies(host->pdata->detect_delay_ms));
+ msecs_to_jiffies(host->pdata->detect_delay_ms));
}
}
}
/* Determine which DMA interface to use */
-#ifdef CONFIG_MMC_DW_IDMAC
+#if defined(CONFIG_MMC_DW_IDMAC)
host->dma_ops = &dw_mci_idmac_ops;
dev_info(host->dev, "Using internal DMA controller.\n");
+#elif defined(CONFIG_MMC_DW_EDMAC)
+ host->dma_ops = &dw_mci_edmac_ops;
+ dev_info(host->dev, "Using external DMA controller.\n");
#endif
if (!host->dma_ops)
}
#endif /* CONFIG_OF */
+static void dw_mci_dealwith_timeout(struct dw_mci *host)
+{
+ u32 ret, i, regs;
+
+ switch(host->state){
+ case STATE_IDLE:
+ break;
+ case STATE_SENDING_DATA:
+ case STATE_DATA_BUSY:
+ host->data_status |= (SDMMC_INT_DCRC|SDMMC_INT_EBE);
+ mci_writel(host, RINTSTS, SDMMC_INT_DRTO); // clear interrupt
+ set_bit(EVENT_DATA_COMPLETE, &host->pending_events);
+ host->state = STATE_DATA_BUSY;
+ if (!dw_mci_ctrl_all_reset(host)) {
+ ret = -ENODEV;
+ return ;
+ }
+
+ /* NO requirement to reclaim slave chn using external dmac */
+ #ifdef CONFIG_MMC_DW_IDMAC
+ if (host->use_dma && host->dma_ops->init)
+ host->dma_ops->init(host);
+ #endif
+
+ /*
+ * Restore the initial value at FIFOTH register
+ * And Invalidate the prev_blksz with zero
+ */
+ mci_writel(host, FIFOTH, host->fifoth_val);
+ host->prev_blksz = 0;
+ mci_writel(host, TMOUT, 0xFFFFFFFF);
+ mci_writel(host, RINTSTS, 0xFFFFFFFF);
+ regs = SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | SDMMC_INT_TXDR
+ | SDMMC_INT_RXDR | SDMMC_INT_VSI | DW_MCI_ERROR_FLAGS;
+ if(!(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SDIO))
+ regs |= SDMMC_INT_CD;
+ mci_writel(host, INTMASK, regs);
+ mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE);
+ for (i = 0; i < host->num_slots; i++) {
+ struct dw_mci_slot *slot = host->slot[i];
+ if (!slot)
+ continue;
+ if (slot->mmc->pm_flags & MMC_PM_KEEP_POWER) {
+ dw_mci_set_ios(slot->mmc, &slot->mmc->ios);
+ dw_mci_setup_bus(slot, true);
+ }
+ }
+ mci_writel(host, RINTSTS, 0xFFFFFFFF);
+ tasklet_schedule(&host->tasklet);
+ break;
+ default:
+ break;
+ }
+}
+static void dw_mci_dto_timeout(unsigned long host_data)
+{
+ struct dw_mci *host = (struct dw_mci *) host_data;
+
+ disable_irq(host->irq);
+
+ host->data_status = SDMMC_INT_EBE;
+ mci_writel(host, RINTSTS, 0xFFFFFFFF);
+ dw_mci_dealwith_timeout(host);
+
+ enable_irq(host->irq);
+}
int dw_mci_probe(struct dw_mci *host)
{
const struct dw_mci_drv_data *drv_data = host->drv_data;
else
host->num_slots = ((mci_readl(host, HCON) >> 1) & 0x1F) + 1;
+ setup_timer(&host->dto_timer, dw_mci_dto_timeout, (unsigned long)host);
/* We need at least one slot to succeed */
for (i = 0; i < host->num_slots; i++) {
ret = dw_mci_init_slot(host, i);
void dw_mci_remove(struct dw_mci *host)
{
int i;
+ del_timer_sync(&host->dto_timer);
- mci_writel(host, RINTSTS, 0xFFFFFFFF);
- mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
+ mci_writel(host, RINTSTS, 0xFFFFFFFF);
+ mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
- for (i = 0; i < host->num_slots; i++) {
- dev_dbg(host->dev, "remove slot %d\n", i);
- if (host->slot[i])
- dw_mci_cleanup_slot(host->slot[i], i);
- }
+ for(i = 0; i < host->num_slots; i++){
+ dev_dbg(host->dev, "remove slot %d\n", i);
+ if(host->slot[i])
+ dw_mci_cleanup_slot(host->slot[i], i);
+ }
- /* disable clock to CIU */
- mci_writel(host, CLKENA, 0);
- mci_writel(host, CLKSRC, 0);
+ /* disable clock to CIU */
+ mci_writel(host, CLKENA, 0);
+ mci_writel(host, CLKSRC, 0);
- destroy_workqueue(host->card_workqueue);
+ destroy_workqueue(host->card_workqueue);
- if (host->use_dma && host->dma_ops->exit)
- host->dma_ops->exit(host);
+ if(host->use_dma && host->dma_ops->exit)
+ host->dma_ops->exit(host);
- if (host->vmmc){
- regulator_disable(host->vmmc);
- regulator_put(host->vmmc);
- }
-
- if (!IS_ERR(host->clk_mmc))
- clk_disable_unprepare(host->clk_mmc);
+ if(host->vmmc){
+ regulator_disable(host->vmmc);
+ regulator_put(host->vmmc);
+ }
+ if(!IS_ERR(host->clk_mmc))
+ clk_disable_unprepare(host->clk_mmc);
- if (!IS_ERR(host->hclk_mmc))
- clk_disable_unprepare(host->hclk_mmc);
+ if(!IS_ERR(host->hclk_mmc))
+ clk_disable_unprepare(host->hclk_mmc);
}
EXPORT_SYMBOL(dw_mci_remove);
*/
int dw_mci_suspend(struct dw_mci *host)
{
-
- if (host->vmmc)
- regulator_disable(host->vmmc);
+ if(host->vmmc)
+ regulator_disable(host->vmmc);
- /*only for sdmmc controller*/
- if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD) {
- host->mmc->rescan_disable = 1;
- if (cancel_delayed_work_sync(&host->mmc->detect)){
+ if(host->use_dma && host->dma_ops->exit)
+ host->dma_ops->exit(host);
+
+ /*only for sdmmc controller*/
+ if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD){
+ host->mmc->rescan_disable = 1;
+ if(cancel_delayed_work_sync(&host->mmc->detect))
wake_unlock(&host->mmc->detect_wake_lock);
- }
- disable_irq(host->irq);
- if(pinctrl_select_state(host->pinctrl, host->pins_idle) < 0)
- printk("%s: Warning : Idle pinctrl setting failed!\n", mmc_hostname(host->mmc));
- dw_mci_of_get_cd_gpio(host->dev,0,host->mmc);
- mci_writel(host, RINTSTS, 0xFFFFFFFF);
- mci_writel(host, INTMASK, 0x00);
- mci_writel(host, CTRL, 0x00);
- enable_irq_wake(host->mmc->slot.cd_irq);
- }
- return 0;
+
+ disable_irq(host->irq);
+ if(pinctrl_select_state(host->pinctrl, host->pins_idle) < 0)
+ MMC_DBG_ERR_FUNC(host->mmc, "Idle pinctrl setting failed! [%s]",
+ mmc_hostname(host->mmc));
+ dw_mci_of_get_cd_gpio(host->dev,0,host->mmc);
+ mci_writel(host, RINTSTS, 0xFFFFFFFF);
+ mci_writel(host, INTMASK, 0x00);
+ mci_writel(host, CTRL, 0x00);
+ enable_irq_wake(host->mmc->slot.cd_irq);
+ }
+ return 0;
}
EXPORT_SYMBOL(dw_mci_suspend);
/*only for sdmmc controller*/
if(host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD) {
disable_irq_wake(host->mmc->slot.cd_irq);
- mmc_gpio_free_cd(host->mmc);
+ mmc_gpio_free_cd(host->mmc);
if(pinctrl_select_state(host->pinctrl, host->pins_default) < 0)
- printk("%s: Warning : Default pinctrl setting failed!\n", mmc_hostname(host->mmc));
+ MMC_DBG_ERR_FUNC(host->mmc, "Default pinctrl setting failed! [%s]",
+ mmc_hostname(host->mmc));
host->mmc->rescan_disable = 0;
- if(cpu_is_rk3288()) {
- grf_writel(((1<<12)<<16)|(0<<12), RK3288_GRF_SOC_CON0);//disable jtag
- }
- }
- if (host->vmmc) {
+ /* Disable jtag*/
+ if(cpu_is_rk3288())
+ grf_writel(((1 << 12) << 16) | (0 << 12), RK3288_GRF_SOC_CON0);
+ /*
+ else if(cpu_is_rk3036())
+ grf_writel(((1 << 11) << 16) | (0 << 11), RK3036_GRF_SOC_CON0);
+ else if(cpu_is_rk3126())
+ TODO;
+ else if audi-b
+ TODO;
+ */
+ }
+ if(host->vmmc){
ret = regulator_enable(host->vmmc);
- if (ret) {
+ if (ret){
dev_err(host->dev,
"failed to enable regulator: %d\n", ret);
return ret;
}
}
- if (!dw_mci_ctrl_all_reset(host)) {
+ if(!dw_mci_ctrl_all_reset(host)){
ret = -ENODEV;
return ret;
}
- if (host->use_dma && host->dma_ops->init)
+ if(host->use_dma && host->dma_ops->init)
host->dma_ops->init(host);
/*
mci_writel(host, INTMASK, regs);
mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE);
/*only for sdmmc controller*/
- if((host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD)&& (!retry_cnt)) {
+ if((host->mmc->restrict_caps & RESTRICT_CARD_TYPE_SD)&& (!retry_cnt)){
enable_irq(host->irq);
}
-
- for (i = 0; i < host->num_slots; i++) {
+ for(i = 0; i < host->num_slots; i++){
struct dw_mci_slot *slot = host->slot[i];
- if (!slot)
+ if(!slot)
continue;
- if (slot->mmc->pm_flags & MMC_PM_KEEP_POWER) {
+ if(slot->mmc->pm_flags & MMC_PM_KEEP_POWER){
dw_mci_set_ios(slot->mmc, &slot->mmc->ios);
dw_mci_setup_bus(slot, true);
}
}
-
+
return 0;
}
EXPORT_SYMBOL(dw_mci_resume);
projects / firefly-linux-kernel-4.4.55.git / blobdiff