From: Jaehoon Chung <jh80.chung@samsung.com>
To: linux-mmc@vger.kernel.org
Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org,
heiko@sntech.de, shawn.lin@rock-chips.com, robh+dt@kernel.org,
Jaehoon Chung <jh80.chung@samsung.com>
Subject: [PATCHv2 03/10] mmc: dw_mmc: change the DW_MCI_FREQ_MIN from 400K to 100K
Date: Tue, 15 Nov 2016 19:12:25 +0900 [thread overview]
Message-ID: <20161115101232.3854-4-jh80.chung@samsung.com> (raw)
In-Reply-To: <20161115101232.3854-1-jh80.chung@samsung.com>
If there is no property "clock-freq-min-max", mmc->f_min should be set
to 400K by default. But Some SoC can be used 100K.
When 100K is used, MMC core will try to check from 400K to 100K.
Reported-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
---
drivers/mmc/host/dw_mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 6c0c4c5..be36f48 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -54,7 +54,7 @@
#define DW_MCI_DMA_THRESHOLD 16
#define DW_MCI_FREQ_MAX 200000000 /* unit: HZ */
-#define DW_MCI_FREQ_MIN 400000 /* unit: HZ */
+#define DW_MCI_FREQ_MIN 100000 /* unit: HZ */
#define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \
SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \
--
2.10.1
next prev parent reply other threads:[~2016-11-15 10:12 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-15 10:12 [PATCHv2 00/10] mmc: dw_mmc: clean the codes for dwmmc controller Jaehoon Chung
2016-11-15 10:12 ` [PATCHv2 02/10] mmc: dw_mmc: fix the debug message for checking card's present Jaehoon Chung
[not found] ` <20161115101232.3854-3-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:01 ` Shawn Lin
2016-11-15 10:12 ` Jaehoon Chung [this message]
[not found] ` <20161115101232.3854-4-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:06 ` [PATCHv2 03/10] mmc: dw_mmc: change the DW_MCI_FREQ_MIN from 400K to 100K Shawn Lin
2016-11-15 10:12 ` [PATCHv2 04/10] mmc: dw_mmc: use the hold register when send stop command Jaehoon Chung
[not found] ` <20161115101232.3854-5-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:09 ` Shawn Lin
2016-11-15 10:12 ` [PATCHv2 05/10] mmc: dw_mmc: call the dw_mci_prep_stop_abort() by default Jaehoon Chung
[not found] ` <20161115101232.3854-6-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:16 ` Shawn Lin
[not found] ` <6d7625c0-8588-5d11-7475-38fa611d8614-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-11-17 5:05 ` Jaehoon Chung
[not found] ` <868dbb62-4b0d-3492-0b13-093ce63c5cde-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-17 7:49 ` Shawn Lin
2016-11-15 10:12 ` [PATCHv2 07/10] mmc: dw_mmc: use the cookie's enum values for post/pre_req() Jaehoon Chung
[not found] ` <20161115101232.3854-1-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-15 10:12 ` [PATCHv2 01/10] mmc: dw_mmc: display the real register value on debugfs Jaehoon Chung
[not found] ` <20161115101232.3854-2-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:04 ` Shawn Lin
2016-11-15 10:12 ` [PATCHv2 06/10] mmc: core: move the cookie's enum values from sdhci.h to mmc.h Jaehoon Chung
[not found] ` <20161115101232.3854-7-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 7:53 ` Jaehoon Chung
[not found] ` <12405f58-695d-03d8-407f-d7471e93a6de-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 8:09 ` Adrian Hunter
2016-11-16 8:25 ` Jaehoon Chung
[not found] ` <89535076-4a77-64a5-68d9-ce15e03b8fb3-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 8:28 ` Adrian Hunter
[not found] ` <d5321daf-b449-e556-ccf1-cd82d497ea85-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-11-16 8:58 ` Jaehoon Chung
2016-11-16 9:04 ` Adrian Hunter
[not found] ` <3e05ec88-af1d-9996-bbdb-c453f7e4bb07-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-11-16 9:23 ` Jaehoon Chung
2016-11-15 10:12 ` [PATCHv2 08/10] mmc: dw_mmc: remove the unnecessary mmc_data structure Jaehoon Chung
[not found] ` <20161115101232.3854-9-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:18 ` Shawn Lin
2016-11-15 10:12 ` [PATCHv2 09/10] mmc: dw_mmc: The "clock-freq-min-max" property was deprecated Jaehoon Chung
[not found] ` <20161115101232.3854-10-jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-11-16 9:19 ` Shawn Lin
2016-11-16 13:45 ` Rob Herring
2016-11-15 10:12 ` [PATCHv2 10/10] Documentation: synopsys-dw-mshc: remove the unused properties Jaehoon Chung
2016-11-16 9:21 ` Shawn Lin
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