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| author | Loic Pallardy <loic.pallardy-ext@stericsson.com> | 2012-08-06 17:12:29 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-12-06 13:54:48 -0500 |
| commit | 188cc0424e9bd7733ee3e412da6df2cf42701061 (patch) | |
| tree | 72d597f27c132e8a0a472dfeaa8d7e6bea90b1c0 | |
| parent | 53d8f97462b0bbb51150f4d6bc2fd45336a008b9 (diff) | |
| download | linux-188cc0424e9bd7733ee3e412da6df2cf42701061.tar.gz linux-188cc0424e9bd7733ee3e412da6df2cf42701061.tar.bz2 linux-188cc0424e9bd7733ee3e412da6df2cf42701061.zip | |
mmc: core: Extend sysfs to ext_csd parameters for RPMB support
Extend current sysfs access to ext_csd rpmb parameters (RPMB partition
size) and rel_sector information.
Signed-off-by: Loic Pallardy <loic.pallardy@stericsson.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Johan Rudholm <johan.rudholm@stericsson.com>
Acked-by: Krishna Konda <kkonda@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | Documentation/mmc/mmc-dev-attrs.txt | 7 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc.c | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/mmc/mmc-dev-attrs.txt b/Documentation/mmc/mmc-dev-attrs.txt index 22ae8441489f..0d98fac8893b 100644 --- a/Documentation/mmc/mmc-dev-attrs.txt +++ b/Documentation/mmc/mmc-dev-attrs.txt @@ -25,6 +25,8 @@ All attributes are read-only. serial Product Serial Number (from CID Register) erase_size Erase group size preferred_erase_size Preferred erase size + raw_rpmb_size_mult RPMB partition size + rel_sectors Reliable write sector count Note on Erase Size and Preferred Erase Size: @@ -65,6 +67,11 @@ Note on Erase Size and Preferred Erase Size: "preferred_erase_size" is in bytes. +Note on raw_rpmb_size_mult: + "raw_rpmb_size_mult" is a mutliple of 128kB block. + RPMB size in byte is calculated by using the following equation: + RPMB partition size = 128kB x raw_rpmb_size_mult + SD/MMC/SDIO Clock Gating Attribute ================================== diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 6c5576628ef1..f605d6e3d2cd 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -626,6 +626,8 @@ MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); MMC_DEV_ATTR(enhanced_area_offset, "%llu\n", card->ext_csd.enhanced_area_offset); MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size); +MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult); +MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors); static struct attribute *mmc_std_attrs[] = { &dev_attr_cid.attr, @@ -641,6 +643,8 @@ static struct attribute *mmc_std_attrs[] = { &dev_attr_serial.attr, &dev_attr_enhanced_area_offset.attr, &dev_attr_enhanced_area_size.attr, + &dev_attr_raw_rpmb_size_mult.attr, + &dev_attr_rel_sectors.attr, NULL, }; |