diff options
| author | Mohit Kataria <mkataria@nvidia.com> | 2012-06-05 15:05:31 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-06-11 16:27:31 -0700 |
| commit | 5702f8c67472c05feb28a3f45550bb7ab1ca865d (patch) | |
| tree | 5f0e8d293cbd0df207e69136c28c856cf1fd8be6 /include | |
| parent | a79e68c19180953ba479b3730e2945974660b43d (diff) | |
mmc: proactively issue bkops_start and refresh
Adding CMD56 implementation.
Doing the following for manfid 0x90 and FW revisions 0x73 and
0x7b (both are non-standard custom FW):
1. Adding change to issue BKOPS_START whenever 20 seconds have gone
by without any slow write operations.
2. Adding change to issue CMD56 to refresh (custom feature) 1 block
whenever 60 seconds have gone by without any slow write operations.
Corresponding changes are already there in embedded branches:
http://git-master/r/#change,93247
http://git-master/r/#change,97555
Bug 847037.
Bug 874256.
Bug 963737.
Change-Id: Ie36b52620a75320abfedc36d1408647b36eddb46
Signed-off-by: Vishal Singh <vissingh@nvidia.com>
Reviewed-on: http://git-master/r/102259
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Luis Dib <ldib@nvidia.com>
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/card.h | 8 | ||||
| -rw-r--r-- | include/linux/mmc/core.h | 5 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 9178aa48209a..8f17619931ab 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -22,6 +22,7 @@ struct mmc_cid { unsigned char hwrev; unsigned char fwrev; unsigned char month; + unsigned short prod_rev; }; struct mmc_csd { @@ -83,6 +84,9 @@ struct mmc_ext_csd { u8 out_of_int_time; /* out of int time */ bool bk_ops; /* BK ops support bit */ bool bk_ops_en; /* BK ops enable bit */ + bool refresh; /* refresh of blocks supported */ + __kernel_time_t last_tv_sec; /* last time a block was refreshed */ + __kernel_time_t last_bkops_tv_sec; /* last time bkops was done */ }; struct sd_scr { @@ -224,6 +228,10 @@ struct mmc_card { unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */ struct dentry *debugfs_root; + + struct timer_list timer; + struct work_struct bkops; + struct work_struct refresh; }; /* diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index c3e55fa63fb6..0c4472eff796 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -11,6 +11,10 @@ #include <linux/interrupt.h> #include <linux/device.h> +#define MMC_SLOW_WRITE_TIME 500000 /* time (us) */ +#define MMC_REFRESH_INTERVAL 60 /* time (s) */ +#define MMC_BKOPS_INTERVAL 20 /* time (s) */ + struct request; struct mmc_data; struct mmc_request; @@ -138,6 +142,7 @@ extern struct mmc_async_req *mmc_start_req(struct mmc_host *, struct mmc_async_req *, int *); extern int mmc_interrupt_hpi(struct mmc_card *); extern int mmc_bkops_start(struct mmc_card *card, bool is_synchronous); +extern void mmc_refresh(unsigned long data); extern void mmc_wait_for_req(struct mmc_host *, struct mmc_request *); extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int); |