Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1703072 > unrolled thread
| Started by | srinivas.kandagatla@linaro.org |
|---|---|
| First post | 2017-08-03 14:50 +0200 |
| Last post | 2017-08-03 15:30 +0200 |
| Articles | 2 — 2 participants |
Back to article view | Back to linux.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
[PATCH v3 2/2] mmc: sdhci-msm: set sdma_boundary to zero srinivas.kandagatla@linaro.org - 2017-08-03 14:50 +0200
Re: [PATCH v3 2/2] mmc: sdhci-msm: set sdma_boundary to zero Adrian Hunter <adrian.hunter@intel.com> - 2017-08-03 15:30 +0200
| From | srinivas.kandagatla@linaro.org |
|---|---|
| Date | 2017-08-03 14:50 +0200 |
| Subject | [PATCH v3 2/2] mmc: sdhci-msm: set sdma_boundary to zero |
| Message-ID | <uanJE-8s6-19@gated-at.bofh.it> |
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Programming legacy HOST SDMA Buffer Boundary bits in Block Size Register (0x04) is not supported in Qualcomm sdhci controllers. Writing to this would cause the controller not to transfer last block in case block size is 4 bytes or less. This issue was noticed while testing sdio wlan card on Qcom DB410c board. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> --- drivers/mmc/host/sdhci-msm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 9d601dc..adfe5bd 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -1133,6 +1133,7 @@ static int sdhci_msm_probe(struct platform_device *pdev) if (IS_ERR(host)) return PTR_ERR(host); + host->sdma_boundary = 0; pltfm_host = sdhci_priv(host); msm_host = sdhci_pltfm_priv(pltfm_host); msm_host->mmc = host->mmc; -- 2.9.3
[toc] | [next] | [standalone]
| From | Adrian Hunter <adrian.hunter@intel.com> |
|---|---|
| Date | 2017-08-03 15:30 +0200 |
| Message-ID | <uaomm-vi-9@gated-at.bofh.it> |
| In reply to | #1703072 |
On 03/08/17 15:46, srinivas.kandagatla@linaro.org wrote: > From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> > > Programming legacy HOST SDMA Buffer Boundary bits in Block Size Register > (0x04) is not supported in Qualcomm sdhci controllers. Writing to this > would cause the controller not to transfer last block in case block size > is 4 bytes or less. > > This issue was noticed while testing sdio wlan card on Qcom DB410c board. > > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> > --- > drivers/mmc/host/sdhci-msm.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c > index 9d601dc..adfe5bd 100644 > --- a/drivers/mmc/host/sdhci-msm.c > +++ b/drivers/mmc/host/sdhci-msm.c > @@ -1133,6 +1133,7 @@ static int sdhci_msm_probe(struct platform_device *pdev) > if (IS_ERR(host)) > return PTR_ERR(host); > > + host->sdma_boundary = 0; > pltfm_host = sdhci_priv(host); > msm_host = sdhci_pltfm_priv(pltfm_host); > msm_host->mmc = host->mmc; >
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web