From: hehuan1@eswincomputing.com
To: adrian.hunter@intel.com, ulf.hansson@linaro.org,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com,
pinkesh.vaghela@einfochips.com, xuxiang@eswincomputing.com,
hehuan1@eswincomputing.com
Subject: [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary
Date: Wed, 14 Jan 2026 20:22:56 +0800 [thread overview]
Message-ID: <20260114122256.1587-1-hehuan1@eswincomputing.com> (raw)
From: Huan He <hehuan1@eswincomputing.com>
This DWC MSHC has a 128MB limitation where the data buffer size and start
address must not exceed the 128MB boundary. Registering the missing
'adma_write_desc' callback function.
Signed-off-by: Huan He <hehuan1@eswincomputing.com>
---
drivers/mmc/host/sdhci-of-dwcmshc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index 51949cde0958..cabb709a8108 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -1726,6 +1726,7 @@ static const struct sdhci_ops sdhci_dwcmshc_eic7700_ops = {
.set_uhs_signaling = sdhci_eic7700_set_uhs_wrapper,
.set_power = sdhci_set_power_and_bus_voltage,
.irq = dwcmshc_cqe_irq_handler,
+ .adma_write_desc = dwcmshc_adma_write_desc,
.platform_execute_tuning = sdhci_eic7700_executing_tuning,
};
--
2.25.1
next reply other threads:[~2026-01-14 12:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-14 12:22 hehuan1 [this message]
2026-01-21 6:41 ` [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary Adrian Hunter
2026-01-22 18:03 ` Ulf Hansson
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