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  1. 13 5月, 2014 18 次提交
  3. 22 4月, 2014 5 次提交
    • M
      mmc: rtsx: add R1-no-CRC mmc command type handle · 5027251e
      由 Micky Ching 提交于 
      a27fbf2f ("mmc: add ignorance case for CMD13 CRC error") produced
a cmd.flags unhandled in realtek pci host driver.  This will make MMC
card fail to initialize, this patch is used to handle the new cmd.flags
condition and MMC card can be used.
Signed-off-by: NMicky Ching <micky_ching@realsil.com.cn>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>
      5027251e
    • U
      mmc: core: Invoke sdio func driver's PM callbacks from the sdio bus · 573185cc
      由 Ulf Hansson 提交于 
      The sdio func device is added to the driver model after the card
device.

This means the sdio func device will be suspend before the card device
and thus resumed after. The consequence are the mmc core don't
explicity need to protect itself from receiving sdio requests in
suspended state. Instead that can be handled from the sdio bus, which
is thus invokes the PM callbacks instead of old dummy function.

In the case were the sdio func driver don't implement the PM callbacks
the mmc core will in the early phase of system suspend, remove the
card from the driver model and thus power off it.

Cc: Aaron Lu <aaron.lu@intel.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Reviewed-by: NAaron Lu <aaron.lu@intel.com>
Tested-by: Nxiaoming wang <xiaoming.wang@intel.com>
Tested-by: NChuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: NChris Ball <chris@printf.net>
      573185cc
    • S
      mmc: core: Use maximum timeout values in case TACC field is zero · f7bf11a3
      由 Stefan Wahren 提交于 
      When plugging a specific micro SD card at MMC socket of a custom i.MX28 board,
we get the following kernel warning:

WARNING: CPU: 0 PID: 30 at drivers/mmc/host/mxs-mmc.c:342 mxs_mmc_start_cmd+0x34c/0x378()
Modules linked in:
CPU: 0 PID: 30 Comm: kworker/u2:1 Not tainted 3.14.0-rc5 #8
Workqueue: kmmcd mmc_rescan
[<c0015420>] (unwind_backtrace) from [<c0012cb0>] (show_stack+0x10/0x14)
[<c0012cb0>] (show_stack) from [<c001daf8>] (warn_slowpath_common+0x6c/0x8c)
[<c001daf8>] (warn_slowpath_common) from [<c001db34>] (warn_slowpath_null+0x1c/0x24)
[<c001db34>] (warn_slowpath_null) from [<c0349478>] (mxs_mmc_start_cmd+0x34c/0x378)
[<c0349478>] (mxs_mmc_start_cmd) from [<c0338fa0>] (mmc_start_request+0xc4/0xf4)
[<c0338fa0>] (mmc_start_request) from [<c03390b4>] (mmc_wait_for_req+0x50/0x164)
[<c03390b4>] (mmc_wait_for_req) from [<c03405b8>] (mmc_app_send_scr+0x158/0x1c8)
[<c03405b8>] (mmc_app_send_scr) from [<c033ee1c>] (mmc_sd_setup_card+0x80/0x3c8)
[<c033ee1c>] (mmc_sd_setup_card) from [<c033f788>] (mmc_sd_init_card+0x124/0x66c)
[<c033f788>] (mmc_sd_init_card) from [<c033fd7c>] (mmc_attach_sd+0xac/0x174)
[<c033fd7c>] (mmc_attach_sd) from [<c033a658>] (mmc_rescan+0x25c/0x2d8)
[<c033a658>] (mmc_rescan) from [<c003597c>] (process_one_work+0x1b4/0x4ec)
[<c003597c>] (process_one_work) from [<c0035de4>] (worker_thread+0x130/0x464)
[<c0035de4>] (worker_thread) from [<c003c824>] (kthread+0xb4/0xd0)
[<c003c824>] (kthread) from [<c000f420>] (ret_from_fork+0x14/0x34)

The error is due to an invalid value in CSD register of a specific 2GB
micro SD card. The CSD version of this card is 1.0 but the TACC field
has the invalid value 0.

cid:0000005553442020000000000000583f
csd:00000032535a83bfedb7ffbf1680003f
date:08/2005
erase_size:512
fwrev:0x0
hwrev:0x0
manfid:0x000000
name:USD
oemid:0x0000
preferred_erase_size:4194304
scr:0225000000000000
serial:0x00000000
type:SD

Since the kernel is making use of this TACC field to calculate the SD
card timeout, an invalid value 0 leads to a warning at
mxs_ns_to_ssp_ticks() and later the following misleading error message
appears in a loop:

mxs-mmc 80010000.ssp: card claims to support voltages below defined range
mxs-mmc 80010000.ssp: no support for card's volts
mmc0: error -22 whilst initialising MMC card

This error is only found on this 2GB SD card on mxs platform.
On x86 this card works without any problems.

The following patch based on the work of Peter Chan and Otavio Salvador.
It catches the case that the determined timeout is still 0 and sets it
to a valid value.

Successful tested on a i.MX28 board.
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>
      f7bf11a3
    • A
      mmc: Convert to use ATTRIBUTE_GROUPS · d1e58212
      由 Axel Lin 提交于 
      Use new ATTRIBUTE_GROUPS macro to declare attribute groups.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>
      d1e58212
    • M
      mmc: Delay the card_event callback into the mmc_rescan worker · fa372a51
      由 Markus Mayer 提交于 
      This change removes the callback from atomic context which it doesn't
need to be in, and puts it in line with the debounced rescan.

This code is based on these e-mail threads with Christian Daudt:

  https://lkml.org/lkml/2013/8/19/539
  https://lkml.org/lkml/2014/3/19/79Signed-off-by: NMarkus Mayer <markus.mayer@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>
      fa372a51
  5. 21 4月, 2014 7 次提交
  7. 08 4月, 2014 1 次提交
  9. 30 3月, 2014 1 次提交
  11. 29 3月, 2014 1 次提交
  13. 27 3月, 2014 2 次提交
  15. 26 3月, 2014 1 次提交
    • A
      sdhci: only reprogram retuning timer when flag is set · 2bc02485
      由 Arend van Spriel 提交于 
      When the host->tuning_count is zero it means that the retuning is
disabled. This is checked on the first run of sdhci_execute_tuning()
by the if statement below:

	if (!(host->flags & SDHCI_NEEDS_RETUNING) && host->tuning_count &&
	    (host->tuning_mode == SDHCI_TUNING_MODE_1)) {

So only when tuning_count is non-zero it will set the host flag
SDHCI_USING_RETUNING_TIMER. The else statement is only for re-programming
the timer, which means that flag must be set. Because that is not checked
the else statement is executed in the first run when tuning_count is zero.

This was seen on a host controller which indicated SDHCI_TUNING_MODE_1 (0)
and tuning_count being zero. Suspect that (one of) these registers is not
properly set.
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Reviewed-by: NAaron Lu <aaron.lu@intel.com>
Signed-off-by: NChris Ball <chris@printf.net>
      2bc02485
  17. 24 3月, 2014 1 次提交
  19. 17 3月, 2014 3 次提交