mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-05 08:26:59 +00:00
mmc: support BKOPS feature for eMMC
Enable eMMC background operations (BKOPS) feature. If URGENT_BKOPS is set after a response, note that BKOPS are required. Immediately run BKOPS if required. Read/write operations should be requested during BKOPS(LEVEL-1), then issue HPI to interrupt the ongoing BKOPS and service the foreground operation. (This patch only controls the LEVEL2/3.) When repeating the writing 1GB data, at a certain time, performance is decreased. At that time, card triggers the Level-3 or Level-2. After running bkops, performance is recovered. Future considerations: * Check BKOPS_LEVEL=1 and start BKOPS in a preventive manner. * Interrupt ongoing BKOPS before powering off the card. * How do we get BKOPS_STATUS value (periodically send ext_csd command)? * If using periodic bkops, also consider runtime_pm control. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org> Reviewed-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
parent
bec9d4e593
commit
950d56acce
6 changed files with 220 additions and 8 deletions
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@ -26,6 +26,7 @@
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#include <linux/suspend.h>
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#include <linux/suspend.h>
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#include <linux/fault-inject.h>
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#include <linux/fault-inject.h>
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#include <linux/random.h>
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#include <linux/random.h>
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#include <linux/slab.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/host.h>
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@ -41,6 +42,12 @@
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#include "sd_ops.h"
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#include "sd_ops.h"
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#include "sdio_ops.h"
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#include "sdio_ops.h"
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/*
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* Background operations can take a long time, depending on the housekeeping
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* operations the card has to perform.
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*/
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#define MMC_BKOPS_MAX_TIMEOUT (4 * 60 * 1000) /* max time to wait in ms */
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static struct workqueue_struct *workqueue;
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static struct workqueue_struct *workqueue;
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static const unsigned freqs[] = { 400000, 300000, 200000, 100000 };
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static const unsigned freqs[] = { 400000, 300000, 200000, 100000 };
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@ -245,6 +252,70 @@ mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
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host->ops->request(host, mrq);
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host->ops->request(host, mrq);
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}
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}
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/**
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* mmc_start_bkops - start BKOPS for supported cards
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* @card: MMC card to start BKOPS
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* @form_exception: A flag to indicate if this function was
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* called due to an exception raised by the card
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*
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* Start background operations whenever requested.
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* When the urgent BKOPS bit is set in a R1 command response
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* then background operations should be started immediately.
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*/
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void mmc_start_bkops(struct mmc_card *card, bool from_exception)
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{
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int err;
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int timeout;
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bool use_busy_signal;
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BUG_ON(!card);
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if (!card->ext_csd.bkops_en || mmc_card_doing_bkops(card))
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return;
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err = mmc_read_bkops_status(card);
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if (err) {
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pr_err("%s: Failed to read bkops status: %d\n",
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mmc_hostname(card->host), err);
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return;
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}
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if (!card->ext_csd.raw_bkops_status)
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return;
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if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 &&
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from_exception)
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return;
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mmc_claim_host(card->host);
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if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) {
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timeout = MMC_BKOPS_MAX_TIMEOUT;
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use_busy_signal = true;
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} else {
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timeout = 0;
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use_busy_signal = false;
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}
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err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
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EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal);
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if (err) {
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pr_warn("%s: Error %d starting bkops\n",
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mmc_hostname(card->host), err);
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goto out;
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}
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/*
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* For urgent bkops status (LEVEL_2 and more)
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* bkops executed synchronously, otherwise
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* the operation is in progress
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*/
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if (!use_busy_signal)
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mmc_card_set_doing_bkops(card);
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out:
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mmc_release_host(card->host);
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}
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EXPORT_SYMBOL(mmc_start_bkops);
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static void mmc_wait_done(struct mmc_request *mrq)
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static void mmc_wait_done(struct mmc_request *mrq)
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{
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{
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complete(&mrq->completion);
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complete(&mrq->completion);
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@ -354,6 +425,14 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,
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if (host->areq) {
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if (host->areq) {
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mmc_wait_for_req_done(host, host->areq->mrq);
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mmc_wait_for_req_done(host, host->areq->mrq);
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err = host->areq->err_check(host->card, host->areq);
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err = host->areq->err_check(host->card, host->areq);
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/*
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* Check BKOPS urgency for each R1 response
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*/
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if (host->card && mmc_card_mmc(host->card) &&
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((mmc_resp_type(host->areq->mrq->cmd) == MMC_RSP_R1) ||
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(mmc_resp_type(host->areq->mrq->cmd) == MMC_RSP_R1B)) &&
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(host->areq->mrq->cmd->resp[0] & R1_EXCEPTION_EVENT))
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mmc_start_bkops(host->card, true);
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}
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}
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if (!err && areq)
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if (!err && areq)
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@ -398,7 +477,7 @@ EXPORT_SYMBOL(mmc_wait_for_req);
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* @card: the MMC card associated with the HPI transfer
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* @card: the MMC card associated with the HPI transfer
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*
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*
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* Issued High Priority Interrupt, and check for card status
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* Issued High Priority Interrupt, and check for card status
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* util out-of prg-state.
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* until out-of prg-state.
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*/
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*/
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int mmc_interrupt_hpi(struct mmc_card *card)
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int mmc_interrupt_hpi(struct mmc_card *card)
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{
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{
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@ -489,6 +568,64 @@ int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd, int retries
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EXPORT_SYMBOL(mmc_wait_for_cmd);
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EXPORT_SYMBOL(mmc_wait_for_cmd);
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/**
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* mmc_stop_bkops - stop ongoing BKOPS
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* @card: MMC card to check BKOPS
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*
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* Send HPI command to stop ongoing background operations to
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* allow rapid servicing of foreground operations, e.g. read/
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* writes. Wait until the card comes out of the programming state
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* to avoid errors in servicing read/write requests.
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*/
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int mmc_stop_bkops(struct mmc_card *card)
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{
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int err = 0;
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BUG_ON(!card);
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err = mmc_interrupt_hpi(card);
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/*
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* If err is EINVAL, we can't issue an HPI.
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* It should complete the BKOPS.
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*/
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if (!err || (err == -EINVAL)) {
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mmc_card_clr_doing_bkops(card);
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err = 0;
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}
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return err;
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}
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EXPORT_SYMBOL(mmc_stop_bkops);
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int mmc_read_bkops_status(struct mmc_card *card)
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{
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int err;
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u8 *ext_csd;
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/*
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* In future work, we should consider storing the entire ext_csd.
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*/
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ext_csd = kmalloc(512, GFP_KERNEL);
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if (!ext_csd) {
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pr_err("%s: could not allocate buffer to receive the ext_csd.\n",
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mmc_hostname(card->host));
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return -ENOMEM;
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}
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mmc_claim_host(card->host);
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err = mmc_send_ext_csd(card, ext_csd);
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mmc_release_host(card->host);
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if (err)
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goto out;
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card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS];
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card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS];
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out:
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kfree(ext_csd);
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return err;
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}
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EXPORT_SYMBOL(mmc_read_bkops_status);
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/**
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/**
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* mmc_set_data_timeout - set the timeout for a data command
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* mmc_set_data_timeout - set the timeout for a data command
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* @data: data phase for command
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* @data: data phase for command
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@ -2333,9 +2470,14 @@ int mmc_suspend_host(struct mmc_host *host)
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mmc_bus_get(host);
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mmc_bus_get(host);
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if (host->bus_ops && !host->bus_dead) {
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if (host->bus_ops && !host->bus_dead) {
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if (host->bus_ops->suspend) {
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if (host->bus_ops->suspend)
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if (mmc_card_doing_bkops(host->card)) {
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err = mmc_stop_bkops(host->card);
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if (err)
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goto out;
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}
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err = host->bus_ops->suspend(host);
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err = host->bus_ops->suspend(host);
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}
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if (err == -ENOSYS || !host->bus_ops->resume) {
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if (err == -ENOSYS || !host->bus_ops->resume) {
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/*
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/*
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@ -2417,11 +2559,21 @@ int mmc_pm_notify(struct notifier_block *notify_block,
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struct mmc_host *host = container_of(
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struct mmc_host *host = container_of(
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notify_block, struct mmc_host, pm_notify);
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notify_block, struct mmc_host, pm_notify);
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unsigned long flags;
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unsigned long flags;
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int err = 0;
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switch (mode) {
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switch (mode) {
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case PM_HIBERNATION_PREPARE:
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case PM_HIBERNATION_PREPARE:
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case PM_SUSPEND_PREPARE:
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case PM_SUSPEND_PREPARE:
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if (host->card && mmc_card_mmc(host->card) &&
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mmc_card_doing_bkops(host->card)) {
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err = mmc_stop_bkops(host->card);
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if (err) {
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pr_err("%s: didn't stop bkops\n",
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mmc_hostname(host));
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return err;
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}
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mmc_card_clr_doing_bkops(host->card);
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}
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spin_lock_irqsave(&host->lock, flags);
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spin_lock_irqsave(&host->lock, flags);
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host->rescan_disable = 1;
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host->rescan_disable = 1;
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@ -463,6 +463,17 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
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}
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}
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if (card->ext_csd.rev >= 5) {
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if (card->ext_csd.rev >= 5) {
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/* check whether the eMMC card supports BKOPS */
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if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) {
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card->ext_csd.bkops = 1;
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card->ext_csd.bkops_en = ext_csd[EXT_CSD_BKOPS_EN];
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card->ext_csd.raw_bkops_status =
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ext_csd[EXT_CSD_BKOPS_STATUS];
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if (!card->ext_csd.bkops_en)
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pr_info("%s: BKOPS_EN bit is not set\n",
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mmc_hostname(card->host));
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}
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/* check whether the eMMC card supports HPI */
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/* check whether the eMMC card supports HPI */
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if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1) {
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if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1) {
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card->ext_csd.hpi = 1;
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card->ext_csd.hpi = 1;
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@ -393,18 +393,19 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc)
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}
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}
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/**
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/**
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* mmc_switch - modify EXT_CSD register
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* __mmc_switch - modify EXT_CSD register
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* @card: the MMC card associated with the data transfer
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* @card: the MMC card associated with the data transfer
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* @set: cmd set values
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* @set: cmd set values
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* @index: EXT_CSD register index
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* @index: EXT_CSD register index
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* @value: value to program into EXT_CSD register
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* @value: value to program into EXT_CSD register
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* @timeout_ms: timeout (ms) for operation performed by register write,
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* @timeout_ms: timeout (ms) for operation performed by register write,
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* timeout of zero implies maximum possible timeout
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* timeout of zero implies maximum possible timeout
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* @use_busy_signal: use the busy signal as response type
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*
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*
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* Modifies the EXT_CSD register for selected card.
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* Modifies the EXT_CSD register for selected card.
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*/
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*/
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int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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unsigned int timeout_ms)
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unsigned int timeout_ms, bool use_busy_signal)
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{
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{
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int err;
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int err;
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struct mmc_command cmd = {0};
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struct mmc_command cmd = {0};
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@ -418,13 +419,23 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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(index << 16) |
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(index << 16) |
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(value << 8) |
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(value << 8) |
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set;
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set;
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cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
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cmd.flags = MMC_CMD_AC;
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if (use_busy_signal)
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cmd.flags |= MMC_RSP_SPI_R1B | MMC_RSP_R1B;
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else
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cmd.flags |= MMC_RSP_SPI_R1 | MMC_RSP_R1;
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cmd.cmd_timeout_ms = timeout_ms;
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cmd.cmd_timeout_ms = timeout_ms;
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err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
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err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
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if (err)
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if (err)
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return err;
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return err;
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/* No need to check card status in case of unblocking command */
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if (!use_busy_signal)
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return 0;
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/* Must check status to be sure of no errors */
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/* Must check status to be sure of no errors */
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do {
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do {
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err = mmc_send_status(card, &status);
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err = mmc_send_status(card, &status);
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@ -449,6 +460,13 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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return 0;
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return 0;
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}
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}
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EXPORT_SYMBOL_GPL(__mmc_switch);
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int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
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unsigned int timeout_ms)
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{
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return __mmc_switch(card, set, index, value, timeout_ms, true);
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}
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EXPORT_SYMBOL_GPL(mmc_switch);
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EXPORT_SYMBOL_GPL(mmc_switch);
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int mmc_send_status(struct mmc_card *card, u32 *status)
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int mmc_send_status(struct mmc_card *card, u32 *status)
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@ -76,10 +76,13 @@ struct mmc_ext_csd {
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bool hpi_en; /* HPI enablebit */
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bool hpi_en; /* HPI enablebit */
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bool hpi; /* HPI support bit */
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bool hpi; /* HPI support bit */
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unsigned int hpi_cmd; /* cmd used as HPI */
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unsigned int hpi_cmd; /* cmd used as HPI */
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bool bkops; /* background support bit */
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bool bkops_en; /* background enable bit */
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unsigned int data_sector_size; /* 512 bytes or 4KB */
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unsigned int data_sector_size; /* 512 bytes or 4KB */
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unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
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unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
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unsigned int boot_ro_lock; /* ro lock support */
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unsigned int boot_ro_lock; /* ro lock support */
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bool boot_ro_lockable;
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bool boot_ro_lockable;
|
||||||
|
u8 raw_exception_status; /* 53 */
|
||||||
u8 raw_partition_support; /* 160 */
|
u8 raw_partition_support; /* 160 */
|
||||||
u8 raw_erased_mem_count; /* 181 */
|
u8 raw_erased_mem_count; /* 181 */
|
||||||
u8 raw_ext_csd_structure; /* 194 */
|
u8 raw_ext_csd_structure; /* 194 */
|
||||||
|
@ -93,6 +96,7 @@ struct mmc_ext_csd {
|
||||||
u8 raw_sec_erase_mult; /* 230 */
|
u8 raw_sec_erase_mult; /* 230 */
|
||||||
u8 raw_sec_feature_support;/* 231 */
|
u8 raw_sec_feature_support;/* 231 */
|
||||||
u8 raw_trim_mult; /* 232 */
|
u8 raw_trim_mult; /* 232 */
|
||||||
|
u8 raw_bkops_status; /* 246 */
|
||||||
u8 raw_sectors[4]; /* 212 - 4 bytes */
|
u8 raw_sectors[4]; /* 212 - 4 bytes */
|
||||||
|
|
||||||
unsigned int feature_support;
|
unsigned int feature_support;
|
||||||
|
@ -226,6 +230,7 @@ struct mmc_card {
|
||||||
#define MMC_CARD_REMOVED (1<<7) /* card has been removed */
|
#define MMC_CARD_REMOVED (1<<7) /* card has been removed */
|
||||||
#define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 mode */
|
#define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 mode */
|
||||||
#define MMC_STATE_SLEEP (1<<9) /* card is in sleep state */
|
#define MMC_STATE_SLEEP (1<<9) /* card is in sleep state */
|
||||||
|
#define MMC_STATE_DOING_BKOPS (1<<10) /* card is doing BKOPS */
|
||||||
unsigned int quirks; /* card quirks */
|
unsigned int quirks; /* card quirks */
|
||||||
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
|
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
|
||||||
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
|
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
|
||||||
|
@ -393,6 +398,7 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
|
||||||
#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
|
#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
|
||||||
#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
|
#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
|
||||||
#define mmc_card_is_sleep(c) ((c)->state & MMC_STATE_SLEEP)
|
#define mmc_card_is_sleep(c) ((c)->state & MMC_STATE_SLEEP)
|
||||||
|
#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
|
||||||
|
|
||||||
#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
|
#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
|
||||||
#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
|
#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
|
||||||
|
@ -405,7 +411,9 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
|
||||||
#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
|
#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
|
||||||
#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
|
#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
|
||||||
#define mmc_card_set_sleep(c) ((c)->state |= MMC_STATE_SLEEP)
|
#define mmc_card_set_sleep(c) ((c)->state |= MMC_STATE_SLEEP)
|
||||||
|
#define mmc_card_set_doing_bkops(c) ((c)->state |= MMC_STATE_DOING_BKOPS)
|
||||||
|
|
||||||
|
#define mmc_card_clr_doing_bkops(c) ((c)->state &= ~MMC_STATE_DOING_BKOPS)
|
||||||
#define mmc_card_clr_sleep(c) ((c)->state &= ~MMC_STATE_SLEEP)
|
#define mmc_card_clr_sleep(c) ((c)->state &= ~MMC_STATE_SLEEP)
|
||||||
/*
|
/*
|
||||||
* Quirk add/remove for MMC products.
|
* Quirk add/remove for MMC products.
|
||||||
|
|
|
@ -134,6 +134,8 @@ struct mmc_host;
|
||||||
struct mmc_card;
|
struct mmc_card;
|
||||||
struct mmc_async_req;
|
struct mmc_async_req;
|
||||||
|
|
||||||
|
extern int mmc_stop_bkops(struct mmc_card *);
|
||||||
|
extern int mmc_read_bkops_status(struct mmc_card *);
|
||||||
extern struct mmc_async_req *mmc_start_req(struct mmc_host *,
|
extern struct mmc_async_req *mmc_start_req(struct mmc_host *,
|
||||||
struct mmc_async_req *, int *);
|
struct mmc_async_req *, int *);
|
||||||
extern int mmc_interrupt_hpi(struct mmc_card *);
|
extern int mmc_interrupt_hpi(struct mmc_card *);
|
||||||
|
@ -142,6 +144,8 @@ extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
|
||||||
extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *);
|
extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *);
|
||||||
extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
|
extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
|
||||||
struct mmc_command *, int);
|
struct mmc_command *, int);
|
||||||
|
extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
|
||||||
|
extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool);
|
||||||
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
|
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
|
||||||
|
|
||||||
#define MMC_ERASE_ARG 0x00000000
|
#define MMC_ERASE_ARG 0x00000000
|
||||||
|
|
|
@ -139,6 +139,7 @@ static inline bool mmc_op_multi(u32 opcode)
|
||||||
#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
|
#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
|
||||||
#define R1_READY_FOR_DATA (1 << 8) /* sx, a */
|
#define R1_READY_FOR_DATA (1 << 8) /* sx, a */
|
||||||
#define R1_SWITCH_ERROR (1 << 7) /* sx, c */
|
#define R1_SWITCH_ERROR (1 << 7) /* sx, c */
|
||||||
|
#define R1_EXCEPTION_EVENT (1 << 6) /* sx, a */
|
||||||
#define R1_APP_CMD (1 << 5) /* sr, c */
|
#define R1_APP_CMD (1 << 5) /* sr, c */
|
||||||
|
|
||||||
#define R1_STATE_IDLE 0
|
#define R1_STATE_IDLE 0
|
||||||
|
@ -274,12 +275,15 @@ struct _mmc_csd {
|
||||||
#define EXT_CSD_FLUSH_CACHE 32 /* W */
|
#define EXT_CSD_FLUSH_CACHE 32 /* W */
|
||||||
#define EXT_CSD_CACHE_CTRL 33 /* R/W */
|
#define EXT_CSD_CACHE_CTRL 33 /* R/W */
|
||||||
#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
|
#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
|
||||||
|
#define EXT_CSD_EXP_EVENTS_STATUS 54 /* RO */
|
||||||
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
|
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
|
||||||
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
|
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
|
||||||
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
|
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
|
||||||
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
|
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
|
||||||
#define EXT_CSD_HPI_MGMT 161 /* R/W */
|
#define EXT_CSD_HPI_MGMT 161 /* R/W */
|
||||||
#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
|
#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
|
||||||
|
#define EXT_CSD_BKOPS_EN 163 /* R/W */
|
||||||
|
#define EXT_CSD_BKOPS_START 164 /* W */
|
||||||
#define EXT_CSD_SANITIZE_START 165 /* W */
|
#define EXT_CSD_SANITIZE_START 165 /* W */
|
||||||
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
|
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
|
||||||
#define EXT_CSD_BOOT_WP 173 /* R/W */
|
#define EXT_CSD_BOOT_WP 173 /* R/W */
|
||||||
|
@ -313,11 +317,13 @@ struct _mmc_csd {
|
||||||
#define EXT_CSD_PWR_CL_200_360 237 /* RO */
|
#define EXT_CSD_PWR_CL_200_360 237 /* RO */
|
||||||
#define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */
|
#define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */
|
||||||
#define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */
|
#define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */
|
||||||
|
#define EXT_CSD_BKOPS_STATUS 246 /* RO */
|
||||||
#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */
|
#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */
|
||||||
#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
|
#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
|
||||||
#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
|
#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
|
||||||
#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
|
#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
|
||||||
#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
|
#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
|
||||||
|
#define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
|
||||||
#define EXT_CSD_HPI_FEATURES 503 /* RO */
|
#define EXT_CSD_HPI_FEATURES 503 /* RO */
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -377,6 +383,19 @@ struct _mmc_csd {
|
||||||
#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */
|
#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */
|
||||||
#define EXT_CSD_PWR_CL_8BIT_SHIFT 4
|
#define EXT_CSD_PWR_CL_8BIT_SHIFT 4
|
||||||
#define EXT_CSD_PWR_CL_4BIT_SHIFT 0
|
#define EXT_CSD_PWR_CL_4BIT_SHIFT 0
|
||||||
|
/*
|
||||||
|
* EXCEPTION_EVENT_STATUS field
|
||||||
|
*/
|
||||||
|
#define EXT_CSD_URGENT_BKOPS BIT(0)
|
||||||
|
#define EXT_CSD_DYNCAP_NEEDED BIT(1)
|
||||||
|
#define EXT_CSD_SYSPOOL_EXHAUSTED BIT(2)
|
||||||
|
#define EXT_CSD_PACKED_FAILURE BIT(3)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* BKOPS status level
|
||||||
|
*/
|
||||||
|
#define EXT_CSD_BKOPS_LEVEL_2 0x2
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* MMC_SWITCH access modes
|
* MMC_SWITCH access modes
|
||||||
*/
|
*/
|
||||||
|
|
Loading…
Reference in a new issue