Skip to content

[sdio]开启emmc内部cache加快传输 #7896

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Aug 1, 2023
Merged

[sdio]开启emmc内部cache加快传输 #7896

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
41257fb
[sdio]给card添加ext_csd成员
heyuanjie87 Jul 31, 2023
cdf9725
[sdio]打开emmc内部cache
heyuanjie87 Jul 31, 2023
6273e6e
[sdio]添加ext_csd命名结构体
heyuanjie87 Aug 1, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 6 additions & 1 deletion components/drivers/include/drivers/mmcsd_card.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,10 @@ struct rt_sdio_function {

#define SDIO_MAX_FUNCTIONS 7


struct rt_mmc_ext_csd
{
rt_uint32_t cache_size;
};

struct rt_mmcsd_card {
struct rt_mmcsd_host *host;
Expand Down Expand Up @@ -164,6 +167,8 @@ struct rt_mmcsd_card {
struct rt_sdio_cis cis; /* common tuple info */
struct rt_sdio_function *sdio_function[SDIO_MAX_FUNCTIONS + 1]; /* SDIO functions (devices) */
rt_list_t blk_devices; /* for block device list */

struct rt_mmc_ext_csd ext_csd;
};

#ifdef __cplusplus
Expand Down
12 changes: 12 additions & 0 deletions components/drivers/sdio/mmc.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -209,6 +209,12 @@ static int mmc_parse_ext_csd(struct rt_mmcsd_card *card, rt_uint8_t *ext_csd)
card->hs_max_data_rate = 52000000;
}

card->ext_csd.cache_size =
ext_csd[EXT_CSD_CACHE_SIZE + 0] << 0 |
ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 |
ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 |
ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24;

card_capacity = *((rt_uint32_t *)&ext_csd[EXT_CSD_SEC_CNT]);
card->card_sec_cnt = card_capacity;
card_capacity *= card->card_blksize;
Expand Down Expand Up @@ -613,6 +619,12 @@ static rt_int32_t mmcsd_mmc_init_card(struct rt_mmcsd_host *host,
goto err0;
}

if (card->ext_csd.cache_size > 0)
{
mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_CACHE_CTRL, 1);
}

host->card = card;

rt_free(ext_csd);
Expand Down