* + mmc-avoid-getting-cid-on-sdio-only-cards.patch added to -mm tree
@ 2010-08-19 22:59 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2010-08-19 22:59 UTC (permalink / raw)
To: mm-commits; +Cc: david.vrabel, linux-mmc, mirq-linux
The patch titled
mmc: avoid getting CID on SDIO-only cards
has been added to the -mm tree. Its filename is
mmc-avoid-getting-cid-on-sdio-only-cards.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mmc: avoid getting CID on SDIO-only cards
From: David Vrabel <david.vrabel@csr.com>
The introduction of support for SD combo cards breaks the initialization
of all CSR SDIO chips. The GO_IDLE (CMD0) in mmc_sd_get_cid() causes CSR
chips to be reset (this is non-standard behavior).
When initializing an SDIO card check for a combo card by using the memory
present bit in the R4 response to IO_SEND_OP_COND (CMD5). This avoids the
call to mmc_sd_get_cid() on an SDIO-only card.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Acked-by: Michal Mirolaw <mirq-linux@rere.qmqm.pl>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/mmc/core/sdio.c | 5 ++---
include/linux/mmc/sdio.h | 2 ++
2 files changed, 4 insertions(+), 3 deletions(-)
diff -puN drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards drivers/mmc/core/sdio.c
--- a/drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/drivers/mmc/core/sdio.c
@@ -362,9 +362,8 @@ static int mmc_sdio_init_card(struct mmc
goto err;
}
- err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
-
- if (!err) {
+ if (ocr & R4_MEMORY_PRESENT
+ && mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid) == 0) {
card->type = MMC_TYPE_SD_COMBO;
if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
diff -puN include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards include/linux/mmc/sdio.h
--- a/include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
* [8:0] Byte/block count
*/
+#define R4_MEMORY_PRESENT (1 << 27)
+
/*
SDIO status in R5
Type
_
Patches currently in -mm which might be from david.vrabel@csr.com are
mmc-avoid-getting-cid-on-sdio-only-cards.patch
linux-next.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + mmc-avoid-getting-cid-on-sdio-only-cards.patch added to -mm tree
@ 2010-08-18 20:36 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2010-08-18 20:36 UTC (permalink / raw)
To: mm-commits; +Cc: david.vrabel, linux-mmc, mirq-linux
The patch titled
mmc: avoid getting CID on SDIO-only cards
has been added to the -mm tree. Its filename is
mmc-avoid-getting-cid-on-sdio-only-cards.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mmc: avoid getting CID on SDIO-only cards
From: David Vrabel <david.vrabel@csr.com>
The introduction of support for SD combo cards breaks the initialization
of all CSR SDIO chips. The GO_IDLE (CMD0) in mmc_sd_get_cid() causes CSR
chips to be reset (this is non-standard behavior).
When initializing an SDIO card check for a combo card by using the memory
present bit in the R4 response to IO_SEND_OP_COND (CMD5). This avoids the
call to mmc_sd_get_cid() on an SDIO-only card.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Cc: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/mmc/core/sdio.c | 8 +++++---
include/linux/mmc/sdio.h | 2 ++
2 files changed, 7 insertions(+), 3 deletions(-)
diff -puN drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards drivers/mmc/core/sdio.c
--- a/drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/drivers/mmc/core/sdio.c
@@ -362,11 +362,13 @@ static int mmc_sdio_init_card(struct mmc
goto err;
}
- err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
-
- if (!err) {
+ if (ocr & R4_MEMORY_PRESENT) {
card->type = MMC_TYPE_SD_COMBO;
+ err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
+ if (err)
+ goto remove;
+
if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
memcmp(card->raw_cid, oldcard->raw_cid, sizeof(card->raw_cid)) != 0)) {
mmc_remove_card(card);
diff -puN include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards include/linux/mmc/sdio.h
--- a/include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
* [8:0] Byte/block count
*/
+#define R4_MEMORY_PRESENT (1 << 27)
+
/*
SDIO status in R5
Type
_
Patches currently in -mm which might be from david.vrabel@csr.com are
mmc-avoid-getting-cid-on-sdio-only-cards.patch
linux-next.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + mmc-avoid-getting-cid-on-sdio-only-cards.patch added to -mm tree
@ 2010-08-18 20:36 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2010-08-18 20:36 UTC (permalink / raw)
To: mm-commits; +Cc: david.vrabel, linux-mmc, mirq-linux
The patch titled
mmc: avoid getting CID on SDIO-only cards
has been added to the -mm tree. Its filename is
mmc-avoid-getting-cid-on-sdio-only-cards.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mmc: avoid getting CID on SDIO-only cards
From: David Vrabel <david.vrabel@csr.com>
The introduction of support for SD combo cards breaks the initialization
of all CSR SDIO chips. The GO_IDLE (CMD0) in mmc_sd_get_cid() causes CSR
chips to be reset (this is non-standard behavior).
When initializing an SDIO card check for a combo card by using the memory
present bit in the R4 response to IO_SEND_OP_COND (CMD5). This avoids the
call to mmc_sd_get_cid() on an SDIO-only card.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Cc: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/mmc/core/sdio.c | 8 +++++---
include/linux/mmc/sdio.h | 2 ++
2 files changed, 7 insertions(+), 3 deletions(-)
diff -puN drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards drivers/mmc/core/sdio.c
--- a/drivers/mmc/core/sdio.c~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/drivers/mmc/core/sdio.c
@@ -362,11 +362,13 @@ static int mmc_sdio_init_card(struct mmc
goto err;
}
- err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
-
- if (!err) {
+ if (ocr & R4_MEMORY_PRESENT) {
card->type = MMC_TYPE_SD_COMBO;
+ err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
+ if (err)
+ goto remove;
+
if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
memcmp(card->raw_cid, oldcard->raw_cid, sizeof(card->raw_cid)) != 0)) {
mmc_remove_card(card);
diff -puN include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards include/linux/mmc/sdio.h
--- a/include/linux/mmc/sdio.h~mmc-avoid-getting-cid-on-sdio-only-cards
+++ a/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
* [8:0] Byte/block count
*/
+#define R4_MEMORY_PRESENT (1 << 27)
+
/*
SDIO status in R5
Type
_
Patches currently in -mm which might be from david.vrabel@csr.com are
mmc-avoid-getting-cid-on-sdio-only-cards.patch
linux-next.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-08-19 22:59 UTC | newest]
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2010-08-19 22:59 + mmc-avoid-getting-cid-on-sdio-only-cards.patch added to -mm tree akpm
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2010-08-18 20:36 akpm
2010-08-18 20:36 akpm
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