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| author | Otavio Salvador <otavio@ossystems.com.br> | 2022-05-19 11:02:10 -0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-19 11:02:10 -0300 |
| commit | b7007e1d615b8d4b71c28ebf790c5164fc4491d5 (patch) | |
| tree | 48c35f63dc1101d0d528b5d79c81849b99ca7c6d /drivers/mmc/host/sdhci.c | |
| parent | 38955ef654554c94f4d91bafb9ef5c5f41a4c0f6 (diff) | |
| parent | 0e61b511dd8474280ba674590daa55f30433b7d4 (diff) | |
Merge pull request #565 from philschenker/update-to-5.4.193__update-to-2.3.7__5.4-2.3.x-imx
Update Patchlevel on Branch 5.4-2.3.x-imx from 5.4.161->5.4.193
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a0f7d0a77070..d0daa28407ed 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -752,7 +752,19 @@ 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) @@ -3583,6 +3595,7 @@ 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; return host; } |