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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-26 10:10:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-26 10:10:19 -0800
commitd3e647926c0dd120612b2f9e698ee38d6156d17d (patch)
tree7c2b25fa0c5f4aabbdf5c7087985f0702fbc18ff /drivers
parent80d75202f033f51581020a5ac06699d4dff89e73 (diff)
parent5f719948b5d43eb39356e94e8d0b462568915381 (diff)
Merge tag 'mmc-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC host fixes from Ulf Hansson: - mmc_spi: Add SPI IDs to silence warning - sdhci: Fix ADMA for PAGE_SIZE >= 64KiB - sdhci-esdhc-imx: Disable broken CMDQ for imx8qm/imx8qxp/imx8mm * tag 'mmc-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: spi: Add device-tree SPI IDs mmc: sdhci: Fix ADMA for PAGE_SIZE >= 64KiB mmc: sdhci-esdhc-imx: disable CMDQ support
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/mmc_spi.c7
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c2
-rw-r--r--drivers/mmc/host/sdhci.c21
-rw-r--r--drivers/mmc/host/sdhci.h4
4 files changed, 28 insertions, 6 deletions
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index f4c8e1a61f53..b431cdd27353 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1514,6 +1514,12 @@ static int mmc_spi_remove(struct spi_device *spi)
return 0;
}
+static const struct spi_device_id mmc_spi_dev_ids[] = {
+ { "mmc-spi-slot"},
+ { },
+};
+MODULE_DEVICE_TABLE(spi, mmc_spi_dev_ids);
+
static const struct of_device_id mmc_spi_of_match_table[] = {
{ .compatible = "mmc-spi-slot", },
{},
@@ -1525,6 +1531,7 @@ static struct spi_driver mmc_spi_driver = {
.name = "mmc_spi",
.of_match_table = mmc_spi_of_match_table,
},
+ .id_table = mmc_spi_dev_ids,
.probe = mmc_spi_probe,
.remove = mmc_spi_remove,
};
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index afaf33707d46..764ee1b761d9 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -310,7 +310,6 @@ static struct esdhc_soc_data usdhc_imx8qxp_data = {
.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
- | ESDHC_FLAG_CQHCI
| ESDHC_FLAG_STATE_LOST_IN_LPMODE
| ESDHC_FLAG_CLK_RATE_LOST_IN_PM_RUNTIME,
};
@@ -319,7 +318,6 @@ static struct esdhc_soc_data usdhc_imx8mm_data = {
.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
- | ESDHC_FLAG_CQHCI
| ESDHC_FLAG_STATE_LOST_IN_LPMODE,
};
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 269c86569402..07c6da1f2f0f 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -771,7 +771,19 @@ static void sdhci_adma_table_pre(struct sdhci_host *host,
len -= offset;
}
- BUG_ON(len > 65536);
+ /*
+ * The block layer forces a minimum segment size of PAGE_SIZE,
+ * so 'len' can be too big here if PAGE_SIZE >= 64KiB. Write
+ * multiple descriptors, noting that the ADMA table is sized
+ * for 4KiB chunks anyway, so it will be big enough.
+ */
+ while (len > host->max_adma) {
+ int n = 32 * 1024; /* 32KiB*/
+
+ __sdhci_adma_write_desc(host, &desc, addr, n, ADMA2_TRAN_VALID);
+ addr += n;
+ len -= n;
+ }
/* tran, valid */
if (len)
@@ -3968,6 +3980,7 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev,
* descriptor for each segment, plus 1 for a nop end descriptor.
*/
host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1;
+ host->max_adma = 65536;
host->max_timeout_count = 0xE;
@@ -4633,10 +4646,12 @@ int sdhci_setup_host(struct sdhci_host *host)
* be larger than 64 KiB though.
*/
if (host->flags & SDHCI_USE_ADMA) {
- if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC)
+ if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) {
+ host->max_adma = 65532; /* 32-bit alignment */
mmc->max_seg_size = 65535;
- else
+ } else {
mmc->max_seg_size = 65536;
+ }
} else {
mmc->max_seg_size = mmc->max_req_size;
}
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index bb883553d3b4..d7929d725730 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -340,7 +340,8 @@ struct sdhci_adma2_64_desc {
/*
* Maximum segments assuming a 512KiB maximum requisition size and a minimum
- * 4KiB page size.
+ * 4KiB page size. Note this also allows enough for multiple descriptors in
+ * case of PAGE_SIZE >= 64KiB.
*/
#define SDHCI_MAX_SEGS 128
@@ -543,6 +544,7 @@ struct sdhci_host {
unsigned int blocks; /* remaining PIO blocks */
int sg_count; /* Mapped sg entries */
+ int max_adma; /* Max. length in ADMA descriptor */
void *adma_table; /* ADMA descriptor table */
void *align_buffer; /* Bounce buffer */