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MMC core:

Browse Source 
- Fix broken cache-flush support for Micron eMMCs
  - Revert "mmc: core: Capture correct oemid-bits for eMMC cards"
 
 MMC host:
  - sdhci_am654: Fix TAP value parsing for legacy speed mode
  - sdhci-pci-gli: Fix support for ASPM mode for GL9755/GL9750
  - vub300: Fix an error path in probe
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Merge tag 'mmc-v6.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix broken cache-flush support for Micron eMMCs
   - Revert 'mmc: core: Capture correct oemid-bits for eMMC cards'

  MMC host:
   - sdhci_am654: Fix TAP value parsing for legacy speed mode
   - sdhci-pci-gli: Fix support for ASPM mode for GL9755/GL9750
   - vub300: Fix an error path in probe"

* tag 'mmc-v6.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci-gli: GL9750: Mask the replay timer timeout of AER
  mmc: sdhci-pci-gli: GL9755: Mask the replay timer timeout of AER
  Revert "mmc: core: Capture correct oemid-bits for eMMC cards"
  mmc: vub300: fix an error code
  mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A
  mmc: sdhci_am654: fix start loop index for TAP value parsing
This commit is contained in:
Linus Torvalds 2023-11-10 11:40:38 -08:00
commit b456259e15
8 changed files with 38 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mmc/core/block.c
View File

@ -2381,8 +2381,10 @@ enum mmc_issued mmc_blk_mq_issue_rq(struct mmc_queue *mq, struct request *req)
}
ret = mmc_blk_cqe_issue_flush(mq, req);
break;
case REQ_OP_READ:
case REQ_OP_WRITE:
card->written_flag = true;
fallthrough;
case REQ_OP_READ:
if (host->cqe_enabled)
ret = mmc_blk_cqe_issue_rw_rq(mq, req);
else

4
drivers/mmc/core/card.h
View File

@ -280,4 +280,8 @@ static inline int mmc_card_broken_sd_cache(const struct mmc_card *c)
return c->quirks & MMC_QUIRK_BROKEN_SD_CACHE;
}
static inline int mmc_card_broken_cache_flush(const struct mmc_card *c)
{
return c->quirks & MMC_QUIRK_BROKEN_CACHE_FLUSH;
}
#endif

10
drivers/mmc/core/mmc.c
View File

@ -104,7 +104,7 @@ static int mmc_decode_cid(struct mmc_card *card)
case 3: /* MMC v3.1 - v3.3 */
case 4: /* MMC v4 */
card->cid.manfid = UNSTUFF_BITS(resp, 120, 8);
card->cid.oemid = UNSTUFF_BITS(resp, 104, 8);
card->cid.oemid = UNSTUFF_BITS(resp, 104, 16);
card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8);
card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8);
card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8);
@ -2086,13 +2086,17 @@ static int _mmc_flush_cache(struct mmc_host *host)
{
int err = 0;
if (mmc_card_broken_cache_flush(host->card) && !host->card->written_flag)
return 0;
if (_mmc_cache_enabled(host)) {
err = mmc_switch(host->card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_FLUSH_CACHE, 1,
CACHE_FLUSH_TIMEOUT_MS);
if (err)
pr_err("%s: cache flush error %d\n",
mmc_hostname(host), err);
pr_err("%s: cache flush error %d\n", mmc_hostname(host), err);
else
host->card->written_flag = false;
}
return err;

7
drivers/mmc/core/quirks.h
View File

@ -110,11 +110,12 @@ static const struct mmc_fixup __maybe_unused mmc_blk_fixups[] = {
MMC_QUIRK_TRIM_BROKEN),
/*
* Micron MTFC4GACAJCN-1M advertises TRIM but it does not seems to
* support being used to offload WRITE_ZEROES.
* Micron MTFC4GACAJCN-1M supports TRIM but does not appear to support
* WRITE_ZEROES offloading. It also supports caching, but the cache can
* only be flushed after a write has occurred.
*/
MMC_FIXUP("Q2J54A", CID_MANFID_MICRON, 0x014e, add_quirk_mmc,
MMC_QUIRK_TRIM_BROKEN),
MMC_QUIRK_TRIM_BROKEN | MMC_QUIRK_BROKEN_CACHE_FLUSH),
/*
* Kingston EMMC04G-M627 advertises TRIM but it does not seems to

16
drivers/mmc/host/sdhci-pci-gli.c
View File

@ -28,6 +28,9 @@
#define PCI_GLI_9750_PM_CTRL 0xFC
#define PCI_GLI_9750_PM_STATE GENMASK(1, 0)
#define PCI_GLI_9750_CORRERR_MASK 0x214
#define PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT BIT(12)
#define SDHCI_GLI_9750_CFG2 0x848
#define SDHCI_GLI_9750_CFG2_L1DLY GENMASK(28, 24)
#define GLI_9750_CFG2_L1DLY_VALUE 0x1F
@ -152,6 +155,9 @@
#define PCI_GLI_9755_PM_CTRL 0xFC
#define PCI_GLI_9755_PM_STATE GENMASK(1, 0)
#define PCI_GLI_9755_CORRERR_MASK 0x214
#define PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT BIT(12)
#define SDHCI_GLI_9767_GM_BURST_SIZE 0x510
#define SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET BIT(8)
@ -561,6 +567,11 @@ static void gl9750_hw_setting(struct sdhci_host *host)
value &= ~PCI_GLI_9750_PM_STATE;
pci_write_config_dword(pdev, PCI_GLI_9750_PM_CTRL, value);
/* mask the replay timer timeout of AER */
pci_read_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, &value);
value |= PCI_GLI_9750_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
pci_write_config_dword(pdev, PCI_GLI_9750_CORRERR_MASK, value);
gl9750_wt_off(host);
}
@ -770,6 +781,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
value &= ~PCI_GLI_9755_PM_STATE;
pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
/* mask the replay timer timeout of AER */
pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
gl9755_wt_off(pdev);
}

2
drivers/mmc/host/sdhci_am654.c
View File

@ -598,7 +598,7 @@ static int sdhci_am654_get_otap_delay(struct sdhci_host *host,
return 0;
}
for (i = MMC_TIMING_MMC_HS; i <= MMC_TIMING_MMC_HS400; i++) {
for (i = MMC_TIMING_LEGACY; i <= MMC_TIMING_MMC_HS400; i++) {
ret = device_property_read_u32(dev, td[i].otap_binding,
&sdhci_am654->otap_del_sel[i]);

1
drivers/mmc/host/vub300.c
View File

@ -2309,6 +2309,7 @@ static int vub300_probe(struct usb_interface *interface,
vub300->read_only =
(0x0010 & vub300->system_port_status.port_flags) ? 1 : 0;
} else {
retval = -EINVAL;
goto error5;
}
usb_set_intfdata(interface, vub300);

2
include/linux/mmc/card.h
View File

@ -295,7 +295,9 @@ struct mmc_card {
#define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */
#define MMC_QUIRK_BROKEN_SD_DISCARD (1<<14) /* Disable broken SD discard support */
#define MMC_QUIRK_BROKEN_SD_CACHE (1<<15) /* Disable broken SD cache support */
#define MMC_QUIRK_BROKEN_CACHE_FLUSH (1<<16) /* Don't flush cache until the write has occurred */
bool written_flag; /* Indicates eMMC has been written since power on */
bool reenable_cmdq; /* Re-enable Command Queue */
unsigned int erase_size; /* erase size in sectors */