*/
void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq)
{
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ unsigned long datasize, waittime = 0xFFFF;
+ u32 multi, unit;
+#endif
+
DECLARE_COMPLETION_ONSTACK(complete);
mrq->done_data = &complete;
mmc_start_request(host, mrq);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if( strncmp( mmc_hostname(host) ,"mmc0" , strlen("mmc0")) )
+ {
+ multi = (mrq->cmd->retries>0)?mrq->cmd->retries:1;
+ waittime = wait_for_completion_timeout(&complete,HZ*7*multi); //sdio; for cmd dead. Modifyed by xbw at 2011-06-02
+ }
+ else
+ {
+ //calculate the timeout value for SDMMC; added by xbw at 2011-09-27
+ if(mrq->data)
+ {
+ unit = 2*(1<<20);// unit=2MB
+ datasize = mrq->data->blksz*mrq->data->blocks;
+ multi = datasize/unit;
+ multi += (datasize%unit)?1:0;
+ multi = (multi>0) ? multi : 1;
+ multi += (mrq->cmd->retries>0)?1:0;
+ waittime = wait_for_completion_timeout(&complete,HZ*7*multi); //It should be longer than bottom driver's time,due to the sum of two cmd time.
+ //modifyed by xbw at 2011-10-08
+ //
+ //example:
+ //rk29_sdmmc_request_end..2336... CMD12 wait busy timeout!!!!! ====xbw=[sd_mmc]====
+ //mmc_wait_for_req..236.. !!!!! wait for CMD25 timeout ===xbw[mmc0]===
+ }
+ else
+ {
+ multi = (mrq->cmd->retries>0)?mrq->cmd->retries:1;
+ waittime = wait_for_completion_timeout(&complete,HZ*7*multi);
+ }
+ }
+
+ if(waittime <= 1)
+ {
+ host->doneflag = 0;
+ mrq->cmd->error = -EIO;
+
+ if(0 == mrq->cmd->retries)
+ {
+ printk(KERN_WARNING "%s..%d.. !!!!! wait for CMD%d timeout [%s]\n",\
+ __FUNCTION__, __LINE__, mrq->cmd->opcode, mmc_hostname(host));
+ }
+ }
+#else
wait_for_completion(&complete);
+#endif
}
EXPORT_SYMBOL(mmc_wait_for_req);
* to reach the minimum voltage.
*/
mmc_delay(10);
-
+
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+ host->ios.clock = host->f_min;
+#else
host->ios.clock = host->f_init;
+#endif
host->ios.power_mode = MMC_POWER_ON;
mmc_set_ios(host);
{
host->f_init = freq;
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+ int init_ret=0;
+#endif
+
#ifdef CONFIG_MMC_DEBUG
pr_info("%s: %s: trying to init card at %u Hz\n",
mmc_hostname(host), __func__, host->f_init);
* if the card is being re-initialized, just send it. CMD52
* should be ignored by SD/eMMC cards.
*/
- sdio_reset(host);
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+//the process is default for rockchip SDK. noted by xbw at 2011-11-17
+
+/* Order's important: probe SDIO, then SD, then MMC */
+
+#if !defined(CONFIG_USE_SDMMC0_FOR_WIFI_DEVELOP_BOARD)
+ if( strncmp( mmc_hostname(host) ,"mmc0" , strlen("mmc0")) )
+ {
+ //sdio_reset(host);//make no sense; noteed by xbw at 2011-12-14
+ mmc_go_idle(host);
+
+ if (!(init_ret=mmc_attach_sdio(host)))
+ {
+ printk(KERN_INFO "%s..%d.. ===== Initialize SDIO successfully. [%s]\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+ return 0;
+ }
+ else
+ {
+ if(0xFF!=init_ret)
+ {
+ printk(KERN_WARNING "\n=====\n %s..%d.. ===== Initialize SDIO-card unsuccessfully!!! [%s]\n=====\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ goto freq_out;
+ }
+ }
+ }
+ else
+ {
+ mmc_go_idle(host);
+ }
+#else
+ //sdio_reset(host); //make no sense; noteed by xbw at 2011-12-14
+ mmc_go_idle(host);
+
+ if (!(init_ret=mmc_attach_sdio(host)))
+ {
+ printk(KERN_INFO "%s..%d.. ===== Initialize SDIO successfully. [%s]\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+ return 0;
+ }
+ else
+ {
+ if(0xFF!=init_ret)
+ {
+ printk(KERN_WARNING "\n=====\n %s..%d.. ===== Initialize SDIO-card unsuccessfully!!! [%s]\n=====\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ goto freq_out;
+ }
+ }
+#endif // #end--#if !defined(CONFIG_USE_SDMMC0_FOR_WIFI_DEVELOP_BOARD)
+
+ if (!(init_ret=mmc_attach_sd(host)))
+ {
+ printk(KERN_INFO "%s..%d.. ===== Initialize SD-card successfully. [%s]\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ return 0;
+ }
+ else
+ {
+ if(0xFF!=init_ret)
+ {
+ printk(KERN_WARNING "\n=====\n%s..%d.. ===== Initialize SD-card unsuccessfully! [%s]\n====\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ goto freq_out;
+ }
+ }
+
+
+ if (!(init_ret=mmc_attach_mmc(host)))
+ {
+ printk(KERN_INFO "%s...%d.. ===== Initialize MMC-card successfully. [%s]\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ return 0;
+ }
+ else
+ {
+ if(0xFF!=init_ret)
+ {
+ printk(KERN_WARNING "\n =====\n%s..%d.. ===== Initialize MMC-card unsuccessfully!!! [%s]\n======\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ goto freq_out;
+ }
+ }
+
+freq_out:
+ mmc_power_off(host);
+ return -EIO;
+
+#else // the default process in ICS.
+
+ sdio_reset(host);
mmc_go_idle(host);
mmc_send_if_cond(host, host->ocr_avail);
mmc_power_off(host);
return -EIO;
+#endif
+
}
void mmc_rescan(struct work_struct *work)
*/
mmc_bus_put(host);
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+ printk(KERN_INFO "\n%s...%d.. ===== mmc_rescan Begin....[%s]\n",__FILE__, __LINE__, mmc_hostname(host));
+#endif
+
if (host->ops->get_cd && host->ops->get_cd(host) == 0)
+ {
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+ printk(KERN_WARNING "\n=================\n%s..%d.. ====find no SDMMC host. [%s]\n", \
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+#endif
+
goto out;
+ }
mmc_claim_host(host);
+
+#if defined(CONFIG_SDMMC_RK29) || !defined(CONFIG_SDMMC_RK29_OLD) //Modifyed by xbw at 2011-11-17
+ if (!mmc_rescan_try_freq(host, host->f_min))
+ extend_wakelock = true;
+
+#else
for (i = 0; i < ARRAY_SIZE(freqs); i++) {
if (!mmc_rescan_try_freq(host, max(freqs[i], host->f_min))) {
extend_wakelock = true;
if (freqs[i] <= host->f_min)
break;
}
+#endif
+
mmc_release_host(host);
out:
if (host->bus_ops && !host->bus_dead) {
if (host->bus_ops->suspend)
err = host->bus_ops->suspend(host);
+
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
+ //deleted all detail code. //fix the crash bug when error occur during suspend. Modiefyed by xbw at 2012-08-09
+#else
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
* We simply "remove" the card in this case.
host->pm_flags = 0;
err = 0;
}
+#endif
flush_delayed_work(&host->disable);
}
mmc_bus_put(host);
}
}
BUG_ON(!host->bus_ops->resume);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //panic if the card is being removed during the resume, deleted by xbw at 2011-06-20
+ host->bus_ops->resume(host);
+
+#else
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
mmc_hostname(host), err);
err = 0;
}
+#endif
}
host->pm_flags &= ~MMC_PM_KEEP_POWER;
mmc_bus_put(host);
projects / firefly-linux-kernel-4.4.55.git / blobdiff