From: Chaotian Jing <chaotian.jing@mediatek.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Chaotian Jing <chaotian.jing@mediatek.com>,
yong mao <yong.mao@mediatek.com>,
Linus Walleij <linus.walleij@linaro.org>,
Javier Martinez Canillas <javier@osg.samsung.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Phong LE <ple@baylibre.com>, <linux-mmc@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <srv_heupstream@mediatek.com>
Subject: [PATCH 12/12] mmc: mediatek: perfer to use rise edge latching for cmd line
Date: Tue, 12 Sep 2017 17:07:52 +0800 [thread overview]
Message-ID: <1505207272-16983-13-git-send-email-chaotian.jing@mediatek.com> (raw)
In-Reply-To: <1505207272-16983-1-git-send-email-chaotian.jing@mediatek.com>
data lines have applied to perfer to use rise edge, also need
apply it to cmd line.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
drivers/mmc/host/mtk-sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 49d4d79..9f21cdb 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1554,7 +1554,8 @@ static int msdc_tune_response(struct mmc_host *mmc, u32 opcode)
}
final_rise_delay = get_best_delay(host, rise_delay);
/* if rising edge has enough margin, then do not scan falling edge */
- if (final_rise_delay.maxlen >= 12 && final_rise_delay.start < 4)
+ if (final_rise_delay.maxlen >= 12 ||
+ (final_rise_delay.start == 0 && final_rise_delay.maxlen >= 4))
goto skip_fall;
sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
--
1.8.1.1.dirty
WARNING: multiple messages have this Message-ID (diff)
From: Chaotian Jing <chaotian.jing@mediatek.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Chaotian Jing <chaotian.jing@mediatek.com>,
yong mao <yong.mao@mediatek.com>,
Linus Walleij <linus.walleij@linaro.org>,
Javier Martinez Canillas <javier@osg.samsung.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Phong LE <ple@baylibre.com>,
linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
srv_heupstream@mediatek.com
Subject: [PATCH 12/12] mmc: mediatek: perfer to use rise edge latching for cmd line
Date: Tue, 12 Sep 2017 17:07:52 +0800 [thread overview]
Message-ID: <1505207272-16983-13-git-send-email-chaotian.jing@mediatek.com> (raw)
In-Reply-To: <1505207272-16983-1-git-send-email-chaotian.jing@mediatek.com>
data lines have applied to perfer to use rise edge, also need
apply it to cmd line.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
drivers/mmc/host/mtk-sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 49d4d79..9f21cdb 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1554,7 +1554,8 @@ static int msdc_tune_response(struct mmc_host *mmc, u32 opcode)
}
final_rise_delay = get_best_delay(host, rise_delay);
/* if rising edge has enough margin, then do not scan falling edge */
- if (final_rise_delay.maxlen >= 12 && final_rise_delay.start < 4)
+ if (final_rise_delay.maxlen >= 12 ||
+ (final_rise_delay.start == 0 && final_rise_delay.maxlen >= 4))
goto skip_fall;
sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
--
1.8.1.1.dirty
WARNING: multiple messages have this Message-ID (diff)
From: chaotian.jing@mediatek.com (Chaotian Jing)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/12] mmc: mediatek: perfer to use rise edge latching for cmd line
Date: Tue, 12 Sep 2017 17:07:52 +0800 [thread overview]
Message-ID: <1505207272-16983-13-git-send-email-chaotian.jing@mediatek.com> (raw)
In-Reply-To: <1505207272-16983-1-git-send-email-chaotian.jing@mediatek.com>
data lines have applied to perfer to use rise edge, also need
apply it to cmd line.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
drivers/mmc/host/mtk-sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 49d4d79..9f21cdb 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1554,7 +1554,8 @@ static int msdc_tune_response(struct mmc_host *mmc, u32 opcode)
}
final_rise_delay = get_best_delay(host, rise_delay);
/* if rising edge has enough margin, then do not scan falling edge */
- if (final_rise_delay.maxlen >= 12 && final_rise_delay.start < 4)
+ if (final_rise_delay.maxlen >= 12 ||
+ (final_rise_delay.start == 0 && final_rise_delay.maxlen >= 4))
goto skip_fall;
sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
--
1.8.1.1.dirty
next prev parent reply other threads:[~2017-09-12 9:08 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 9:07 mmc: mediatek: add support of mt2701/mt2712 Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 01/12] mmc: dt-bindings: update Mediatek MMC bindings Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-13 14:10 ` Rob Herring
2017-09-13 14:10 ` Rob Herring
2017-09-13 14:10 ` Rob Herring
2017-09-14 2:10 ` Chaotian Jing
2017-09-14 2:10 ` Chaotian Jing
2017-09-14 2:10 ` Chaotian Jing
2017-09-21 11:38 ` Linus Walleij
2017-09-21 11:38 ` Linus Walleij
2017-09-21 11:38 ` Linus Walleij
2017-09-26 22:33 ` Ulf Hansson
2017-09-26 22:33 ` Ulf Hansson
2017-09-26 22:33 ` Ulf Hansson
2017-09-27 1:18 ` Chaotian Jing
2017-09-27 1:18 ` Chaotian Jing
2017-09-27 1:18 ` Chaotian Jing
2017-09-29 1:56 ` Chaotian Jing
2017-09-29 1:56 ` Chaotian Jing
2017-09-29 1:56 ` Chaotian Jing
2017-10-02 6:53 ` Ulf Hansson
2017-10-02 6:53 ` Ulf Hansson
2017-10-02 6:53 ` Ulf Hansson
2017-10-09 2:16 ` Chaotian Jing
2017-10-09 2:16 ` Chaotian Jing
2017-10-09 2:16 ` Chaotian Jing
2017-10-02 10:49 ` Yingjoe Chen
2017-10-02 10:49 ` Yingjoe Chen
2017-10-02 10:49 ` Yingjoe Chen
2017-09-12 9:07 ` [PATCH 02/12] arm64: dts: mt8173: remove "mediatek,mt8135-mmc" from mmc nodes Chaotian Jing
2017-09-12 9:07 ` [PATCH 02/12] arm64: dts: mt8173: remove "mediatek, mt8135-mmc" " Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-26 22:37 ` [PATCH 02/12] arm64: dts: mt8173: remove "mediatek,mt8135-mmc" " Ulf Hansson
2017-09-26 22:37 ` Ulf Hansson
2017-09-26 22:37 ` Ulf Hansson
2017-09-27 1:14 ` Chaotian Jing
2017-09-27 1:14 ` Chaotian Jing
2017-09-27 1:14 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 03/12] mmc: mediatek: add support of mt2701/mt2712 Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-26 1:38 ` Chaotian Jing
2017-09-26 1:38 ` Chaotian Jing
2017-09-26 1:38 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 04/12] mmc: mediatek: make hs400_tune_response only for mt8173 Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 05/12] mmc: mediatek: add pad_tune0 support Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 06/12] mmc: mediatek: add async fifo and data tune support Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 07/12] mmc: mediatek: add busy_check support Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 08/12] mmc: mediatek: add stop_clk fix and enhance_rx support Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 09/12] mmc: mediatek: add support of source_cg clock Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 10/12] mmc: mediatek: add latch-ck support Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` [PATCH 11/12] mmc: mediatek: improve eMMC hs400 mode read performance Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing [this message]
2017-09-12 9:07 ` [PATCH 12/12] mmc: mediatek: perfer to use rise edge latching for cmd line Chaotian Jing
2017-09-12 9:07 ` Chaotian Jing
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