| Message ID | 1344265951-22437-4-git-send-email-loic.pallardy-ext@stericsson.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, 2012-11-16 at 13:17 -0800, Krishna Konda wrote: > > > From: Loic Pallardy <loic.pallardy-ext@stericsson.com> > Date: Mon, Aug 6, 2012 at 8:12 AM > Subject: [PATCH v3 3/5] mmc: core: Extend sysfs to ext_csd parameters > for RPMB support > To: linux-mmc@vger.kernel.org, Chris Ball <cjb@laptop.org> > Cc: Linus Walleij <linus.walleij@linaro.org>, STEricsson_nomadik_linux > <STEricsson_nomadik_linux@list.st.com>, Ulf Hansson > <ulf.hansson@stericcson.com>, Loic Pallardy > <loic.pallardy-ext@stericsson.com>, Loic Pallardy > <loic.pallardy@stericsson.com> > > > 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> > Acked-by: Linus Walleij <linus.walleij@linaro.org> > Acked-by: Johan Rudholm <johan.rudholm@stericsson.com> > Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Acked-by: Krishna Konda <kkonda@codeaurora.org>
diff --git a/Documentation/mmc/mmc-dev-attrs.txt b/Documentation/mmc/mmc-dev-attrs.txt index 22ae844..0d98fac 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 8a459cb..0f2449c 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -615,6 +615,8 @@ 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, @@ -630,6 +632,8 @@ 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, };