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* [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary
@ 2026-01-14 12:22 hehuan1
  2026-01-21  6:41 ` Adrian Hunter
  2026-01-22 18:03 ` Ulf Hansson
  0 siblings, 2 replies; 3+ messages in thread
From: hehuan1 @ 2026-01-14 12:22 UTC (permalink / raw)
  To: adrian.hunter, ulf.hansson, linux-mmc, linux-kernel
  Cc: ningyu, linmin, pinkesh.vaghela, xuxiang, hehuan1

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


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2026-01-14 12:22 [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary hehuan1
2026-01-21  6:41 ` Adrian Hunter
2026-01-22 18:03 ` Ulf Hansson

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