diff mbox

[v1,3/5] mmc: core: Extend sysfs to ext_csd parameters for RPMB support

Message ID 1341564244-6178-4-git-send-email-loic.pallardy@stericsson.com (mailing list archive)
State New, archived
Headers show

Commit Message

Loic Pallardy July 6, 2012, 8:44 a.m. UTC
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>
---
 Documentation/mmc/mmc-dev-attrs.txt | 7 +++++++
 drivers/mmc/core/mmc.c              | 4 ++++
 2 files changed, 11 insertions(+)

Comments

Linus Walleij July 8, 2012, 7:19 p.m. UTC | #1
On Fri, Jul 6, 2012 at 10:44 AM, Loic Pallardy
<loic.pallardy@stericsson.com> wrote:

> 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>

Yours,
Linus Walleij
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Johan Rudholm July 9, 2012, 5:45 p.m. UTC | #2
2012/7/8 Linus Walleij <linus.walleij@linaro.org>:
> On Fri, Jul 6, 2012 at 10:44 AM, Loic Pallardy
> <loic.pallardy@stericsson.com> wrote:
>
>> 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>
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diff mbox

Patch

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,
 };