* [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
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary
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
1 sibling, 0 replies; 3+ messages in thread
From: Adrian Hunter @ 2026-01-21 6:41 UTC (permalink / raw)
To: hehuan1, ulf.hansson, linux-mmc, linux-kernel
Cc: ningyu, linmin, pinkesh.vaghela, xuxiang
On 14/01/2026 14:22, hehuan1@eswincomputing.com wrote:
> 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>
Fixes tag?
Nevertheless:
Acked-by: Adrian Hunter <adrian.hunter@intel.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,
> };
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] mmc: sdhci-of-dwcmshc: fix DMA 128MB boundary
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
1 sibling, 0 replies; 3+ messages in thread
From: Ulf Hansson @ 2026-01-22 18:03 UTC (permalink / raw)
To: hehuan1
Cc: adrian.hunter, linux-mmc, linux-kernel, ningyu, linmin,
pinkesh.vaghela, xuxiang
On Wed, 14 Jan 2026 at 13:23, <hehuan1@eswincomputing.com> wrote:
>
> 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>
Applied for fixes and by adding a fixes tag, thanks!
Kind regards
Uffe
> ---
> 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
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2026-01-22 18:03 UTC | newest]
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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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