Commit graph

23 commits

Author SHA1 Message Date
Peter Robinson
dc655f65ae mmc: sdhci_omap: Fix TI SoC dependencies
[ Upstream commit 09f164d393a6671e5ff8342ba6b3cb7fe3f20208 ]

The sdhci_omap is specific to  older TI SoCs, update the
dependencies for those SoCs and compile testing. While we're
at it update the text to reflect the wider range of
supported TI SoCS the driver now supports.

Fixes: 7d326930d352 ("mmc: sdhci-omap: Add OMAP SDHCI driver")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Link: https://lore.kernel.org/r/20231220135950.433588-2-pbrobinson@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:12:43 +01:00
Peter Robinson
8a147a2762 mmc: sdhci_am654: Fix TI SoC dependencies
[ Upstream commit cb052da7f031b0d2309a4895ca236afb3b4bbf50 ]

The sdhci_am654 is specific to recent TI SoCs, update the
dependencies for those SoCs and compile testing. While we're
at it update the text to reflect the wider range of
supported TI SoCS the driver now supports.

Fixes: 41fd4caeb00b ("mmc: sdhci_am654: Add Initial Support for AM654 SDHCI driver")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Link: https://lore.kernel.org/r/20231220135950.433588-1-pbrobinson@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:12:43 +01:00
Wenchao Chen
8db850fc7a mmc: sdhci-sprd: Fix eMMC init failure after hw reset
commit 8abf77c88929b6d20fa4f9928b18d6448d64e293 upstream.

Some eMMC devices that do not close the auto clk gate after hw reset will
cause eMMC initialization to fail. Let's fix this.

Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Fixes: ff874dbc4f86 ("mmc: sdhci-sprd: Disable CLK_AUTO when the clock is less than 400K")
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231204064934.21236-1-wenchao.chen@unisoc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:12:08 +01:00
Geert Uytterhoeven
ae02462cc3 mmc: core: Cancel delayed work before releasing host
commit 1036f69e251380573e256568cf814506e3fb9988 upstream.

On RZ/Five SMARC EVK, where probing of SDHI is deferred due to probe
deferral of the vqmmc-supply regulator:

    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 0 at kernel/time/timer.c:1738 __run_timers.part.0+0x1d0/0x1e8
    Modules linked in:
    CPU: 0 PID: 0 Comm: swapper Not tainted 6.7.0-rc4 #101
    Hardware name: Renesas SMARC EVK based on r9a07g043f01 (DT)
    epc : __run_timers.part.0+0x1d0/0x1e8
     ra : __run_timers.part.0+0x134/0x1e8
    epc : ffffffff800771a4 ra : ffffffff80077108 sp : ffffffc800003e60
     gp : ffffffff814f5028 tp : ffffffff8140c5c0 t0 : ffffffc800000000
     t1 : 0000000000000001 t2 : ffffffff81201300 s0 : ffffffc800003f20
     s1 : ffffffd8023bc4a0 a0 : 00000000fffee6b0 a1 : 0004010000400000
     a2 : ffffffffc0000016 a3 : ffffffff81488640 a4 : ffffffc800003e60
     a5 : 0000000000000000 a6 : 0000000004000000 a7 : ffffffc800003e68
     s2 : 0000000000000122 s3 : 0000000000200000 s4 : 0000000000000000
     s5 : ffffffffffffffff s6 : ffffffff81488678 s7 : ffffffff814886c0
     s8 : ffffffff814f49c0 s9 : ffffffff81488640 s10: 0000000000000000
     s11: ffffffc800003e60 t3 : 0000000000000240 t4 : 0000000000000a52
     t5 : ffffffd8024ae018 t6 : ffffffd8024ae038
    status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
    [<ffffffff800771a4>] __run_timers.part.0+0x1d0/0x1e8
    [<ffffffff800771e0>] run_timer_softirq+0x24/0x4a
    [<ffffffff80809092>] __do_softirq+0xc6/0x1fa
    [<ffffffff80028e4c>] irq_exit_rcu+0x66/0x84
    [<ffffffff80800f7a>] handle_riscv_irq+0x40/0x4e
    [<ffffffff80808f48>] call_on_irq_stack+0x1c/0x28
    ---[ end trace 0000000000000000 ]---

What happens?

    renesas_sdhi_probe()
    {
    	tmio_mmc_host_alloc()
	    mmc_alloc_host()
		INIT_DELAYED_WORK(&host->detect, mmc_rescan);

	devm_request_irq(tmio_mmc_irq);

	/*
	 * After this, the interrupt handler may be invoked at any time
	 *
	 *  tmio_mmc_irq()
	 *  {
	 *	__tmio_mmc_card_detect_irq()
	 *	    mmc_detect_change()
	 *		_mmc_detect_change()
	 *		    mmc_schedule_delayed_work(&host->detect, delay);
	 *  }
	 */

	tmio_mmc_host_probe()
	    tmio_mmc_init_ocr()
		-EPROBE_DEFER

	tmio_mmc_host_free()
	    mmc_free_host()
    }

When expire_timers() runs later, it warns because the MMC host structure
containing the delayed work was freed, and now contains an invalid work
function pointer.

Fix this by cancelling any pending delayed work before releasing the
MMC host structure.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/205dc4c91b47e31b64392fe2498c7a449e717b4b.1701689330.git.geert+renesas@glider.be
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:12:08 +01:00
Jorge Ramirez-Ortiz
e094a562eb mmc: rpmb: fixes pause retune on all RPMB partitions.
commit e7794c14fd73e5eb4a3e0ecaa5334d5a17377c50 upstream.

When RPMB was converted to a character device, it added support for
multiple RPMB partitions (Commit 97548575bef3 ("mmc: block: Convert RPMB to
a character device").

One of the changes in this commit was transforming the variable target_part
defined in __mmc_blk_ioctl_cmd into a bitmask. This inadvertently regressed
the validation check done in mmc_blk_part_switch_pre() and
mmc_blk_part_switch_post(), so let's fix it.

Fixes: 97548575bef3 ("mmc: block: Convert RPMB to a character device")
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231201153143.1449753-1-jorge@foundries.io
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:12:08 +01:00
Ziyang Huang
b187af6483 mmc: meson-mx-sdhc: Fix initialization frozen issue
commit 8c124d998ea0c9022e247b11ac51f86ec8afa0e1 upstream.

Commit 4bc31edebde5 ("mmc: core: Set HS clock speed before sending
HS CMD13") set HS clock (52MHz) before switching to HS mode. For this
freq, FCLK_DIV5 will be selected and div value is 10 (reg value is 9).
Then we set rx_clk_phase to 11 or 15 which is out of range and make
hardware frozen. After we send command request, no irq will be
interrupted and the mmc driver will keep to wait for request finished,
even durning rebooting.

So let's set it to Phase 90 which should work in most cases. Then let
meson_mx_sdhc_execute_tuning() to find the accurate value for data
transfer.

If this doesn't work, maybe need to define a factor in dts.

Fixes: e4bf1b0970ef ("mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/TYZPR01MB5556A3E71554A2EC08597EA4C9CDA@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:12:08 +01:00
Adrian Hunter
b5c98522ec mmc: block: Be sure to wait while busy in CQE error recovery
commit c616696a902987352426fdaeec1b0b3240949e6b upstream.

STOP command does not guarantee to wait while busy, but subsequent command
MMC_CMDQ_TASK_MGMT to discard the queue will fail if the card is busy, so
be sure to wait by employing mmc_poll_for_busy().

Fixes: 72a5af554df8 ("mmc: core: Add support for handling CQE requests")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://lore.kernel.org/r/20231103084720.6886-4-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:11:47 +01:00
Wenchao Chen
6b6b05f9fe mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled
[ Upstream commit 477865af60b2117ceaa1d558e03559108c15c78c ]

With cat regulator_summary, we found that vqmmc was not shutting
down after the card was pulled.

cat /sys/kernel/debug/regulator/regulator_summary
1.before fix
1)Insert SD card
 vddsdio		1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2)Pull out the SD card
 vddsdio                1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2.after fix
1)Insert SD cardt
 vddsdio                1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2)Pull out the SD card
 vddsdio		0    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  0                         0mA  3500mV  3600mV

Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231115083406.7368-1-wenchao.chen@unisoc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:17 +01:00
Heiner Kallweit
3bdecd27e7 mmc: core: add helpers mmc_regulator_enable/disable_vqmmc
[ Upstream commit 8d91f3f8ae57e6292142ca89f322e90fa0d6ac02 ]

There's a number of drivers (e.g. dw_mmc, meson-gx, mmci, sunxi) using
the same mechanism and a private flag vqmmc_enabled to deal with
enabling/disabling the vqmmc regulator.

Move this to the core and create new helpers mmc_regulator_enable_vqmmc
and mmc_regulator_disable_vqmmc.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/71586432-360f-9b92-17f6-b05a8a971bc2@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 477865af60b2 ("mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:17 +01:00
Adrian Hunter
2086bd1a02 mmc: block: Retry commands in CQE error recovery
[ Upstream commit 8155d1fa3a747baad5caff5f8303321d68ddd48c ]

It is important that MMC_CMDQ_TASK_MGMT command to discard the queue is
successful because otherwise a subsequent reset might fail to flush the
cache first.  Retry it and the previous STOP command.

Fixes: 72a5af554df8 ("mmc: core: Add support for handling CQE requests")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103084720.6886-5-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:17 +01:00
Zheng Yongjun
4c33fe2c15 mmc: core: convert comma to semicolon
[ Upstream commit 6b1dc6229aecbcb45e8901576684a8c09e25ad7b ]

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201216131737.14883-1-zhengyongjun3@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 8155d1fa3a74 ("mmc: block: Retry commands in CQE error recovery")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:17 +01:00
Adrian Hunter
e6359eafb6 mmc: cqhci: Fix task clearing in CQE error recovery
[ Upstream commit 1de1b77982e1a1df9707cb11f9b1789e6b8919d4 ]

If a task completion notification (TCN) is received when there is no
outstanding task, the cqhci driver issues a "spurious TCN" warning. This
was observed to happen right after CQE error recovery.

When an error interrupt is received the driver runs recovery logic.
It halts the controller, clears all pending tasks, and then re-enables
it. On some platforms, like Intel Jasper Lake, a stale task completion
event was observed, regardless of the CQHCI_CLEAR_ALL_TASKS bit being set.

This results in either:
a) Spurious TC completion event for an empty slot.
b) Corrupted data being passed up the stack, as a result of premature
   completion for a newly added task.

Rather than add a quirk for affected controllers, ensure tasks are cleared
by toggling CQHCI_ENABLE, which would happen anyway if
cqhci_clear_all_tasks() timed out. This is simpler and should be safe and
effective for all controllers.

Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host")
Cc: stable@vger.kernel.org
Reported-by: Kornel Dulęba <korneld@chromium.org>
Tested-by: Kornel Dulęba <korneld@chromium.org>
Co-developed-by: Kornel Dulęba <korneld@chromium.org>
Signed-off-by: Kornel Dulęba <korneld@chromium.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103084720.6886-7-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:16 +01:00
Adrian Hunter
5589b19467 mmc: cqhci: Warn of halt or task clear failure
[ Upstream commit 35597bdb04ec27ef3b1cea007dc69f8ff5df75a5 ]

A correctly operating controller should successfully halt and clear tasks.
Failure may result in errors elsewhere, so promote messages from debug to
warnings.

Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103084720.6886-6-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:16 +01:00
Adrian Hunter
5cfefeb9fc mmc: cqhci: Increase recovery halt timeout
[ Upstream commit b578d5d18e929aa7c007a98cce32657145dde219 ]

Failing to halt complicates the recovery. Additionally, unless the card or
controller are stuck, which is expected to be very rare, then the halt
should succeed, so it is better to wait. Set a large timeout.

Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103084720.6886-3-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:11:15 +01:00
Adrian Hunter
04d32f0e97 mmc: block: Do not lose cache flush during CQE error recovery
commit 174925d340aac55296318e43fd96c0e1d196e105 upstream.

During CQE error recovery, error-free data commands get requeued if there
is any data left to transfer, but non-data commands are completed even
though they have not been processed.  Requeue them instead.

Note the only non-data command is cache flush, which would have resulted in
a cache flush being lost if it was queued at the time of CQE recovery.

Fixes: 1e8e55b67030 ("mmc: block: Add CQE support")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103084720.6886-2-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 12:11:08 +01:00
Rong Chen
e0b4dac1fb mmc: meson-gx: Remove setting of CMD_CFG_ERROR
commit 57925e16c9f7d18012bcf45bfa658f92c087981a upstream.

For the t7 and older SoC families, the CMD_CFG_ERROR has no effect.
Starting from SoC family C3, setting this bit without SG LINK data
address will cause the controller to generate an IRQ and stop working.

To fix it, don't set the bit CMD_CFG_ERROR anymore.

Fixes: 18f92bc02f17 ("mmc: meson-gx: make sure the descriptor is stopped on errors")
Signed-off-by: Rong Chen <rong.chen@amlogic.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231026073156.2868310-1-rong.chen@amlogic.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 11:43:25 +01:00
Nitin Yadav
0ef227ab8c mmc: sdhci_am654: fix start loop index for TAP value parsing
commit 71956d0cb56c1e5f9feeb4819db87a076418e930 upstream.

ti,otap-del-sel-legacy/ti,itap-del-sel-legacy passed from DT
are currently ignored for all SD/MMC and eMMC modes. Fix this
by making start loop index to MMC_TIMING_LEGACY.

Fixes: 8ee5fc0e0b3b ("mmc: sdhci_am654: Update OTAPDLY writes")
Signed-off-by: Nitin Yadav <n-yadav@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231026061458.1116276-1-n-yadav@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 11:43:22 +01:00
Dan Carpenter
61fc7300eb mmc: vub300: fix an error code
commit b44f9da81783fda72632ef9b0d05ea3f3ca447a5 upstream.

This error path should return -EINVAL instead of success.

Fixes: 88095e7b473a ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/0769d30c-ad80-421b-bf5d-7d6f5d85604e@moroto.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 11:43:22 +01:00
Dominique Martinet
392837ef59 Revert "mmc: core: Capture correct oemid-bits for eMMC cards"
commit 421b605edb1ce611dee06cf6fd9a1c1f2fd85ad0 upstream.

This reverts commit 84ee19bffc9306128cd0f1c650e89767079efeff.

The commit above made quirks with an OEMID fail to be applied, as they
were checking card->cid.oemid for the full 16 bits defined in MMC_FIXUP
macros but the field would only contain the bottom 8 bits.

eMMC v5.1A might have bogus values in OEMID's higher bits so another fix
will be made, but it has been decided to revert this until that is ready.

Fixes: 84ee19bffc93 ("mmc: core: Capture correct oemid-bits for eMMC cards")
Link: https://lkml.kernel.org/r/ZToJsSLHr8RnuTHz@codewreck.org
Link: https://lkml.kernel.org/r/CAPDyKFqkKibcXnwjnhc3+W1iJBHLeqQ9BpcZrSwhW2u9K2oUtg@mail.gmail.com
Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
Cc: stable@vger.kernel.org
Cc: Alex Fetters <Alex.Fetters@garmin.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20231103004220.1666641-1-asmadeus@codewreck.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 11:43:11 +01:00
Wolfram Sang
ec2b8d4fda mmc: renesas_sdhi: use custom mask for TMIO_MASK_ALL
commit 9f12cac1bb88e3296990e760d867a98308d6b0ac upstream.

Populate the new member for custom mask values to make sure this value
is applied whenever needed. Also, rename the define holding the value
because this is not only about initialization anymore.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210304092903.8534-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[geert: Backport to v5.10.199]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 10:58:28 +01:00
Avri Altman
7a057ceeb5 mmc: core: Capture correct oemid-bits for eMMC cards
commit 84ee19bffc9306128cd0f1c650e89767079efeff upstream.

The OEMID is an 8-bit binary number rather than 16-bit as the current code
parses for. The OEMID occupies bits [111:104] in the CID register, see the
eMMC spec JESD84-B51 paragraph 7.2.3. It seems that the 16-bit comes from
the legacy MMC specs (v3.31 and before).

Let's fix the parsing by simply move to use 8-bit instead of 16-bit. This
means we ignore the impact on some of those old MMC cards that may be out
there, but on the other hand this shouldn't be a problem as the OEMID seems
not be an important feature for these cards.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230927071500.1791882-1-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-08 11:26:18 +01:00
Haibo Chen
3b64a63098 mmc: core: sdio: hold retuning if sdio in 1-bit mode
commit 32a9cdb8869dc111a0c96cf8e1762be9684af15b upstream.

tuning only support in 4-bit mode or 8 bit mode, so in 1-bit mode,
need to hold retuning.

Find this issue when use manual tuning method on imx93. When system
resume back, SDIO WIFI try to switch back to 4 bit mode, first will
trigger retuning, and all tuning command failed.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: dfa13ebbe334 ("mmc: host: Add facility to support re-tuning")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230830093922.3095850-1-haibo.chen@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-08 11:26:18 +01:00
Gabriel2392
7ed7ee9edf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00