path: root/Documentation/mmc
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authorLoic Pallardy <loic.pallardy-ext@stericsson.com>2012-08-06 17:12:29 +0200
committerChris Ball <cjb@laptop.org>2012-12-06 13:54:48 -0500
commit188cc0424e9bd7733ee3e412da6df2cf42701061 (patch)
tree72d597f27c132e8a0a472dfeaa8d7e6bea90b1c0 /Documentation/mmc
parent53d8f97462b0bbb51150f4d6bc2fd45336a008b9 (diff)
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>
Diffstat (limited to 'Documentation/mmc')
1 files changed, 7 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

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