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From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-mmc@vger.kernel.org>, <adrian.hunter@intel.com>,
	<will@kernel.org>, <catalin.marinas@arm.com>,
	<robh+dt@kernel.org>, <ulf.hansson@linaro.org>
Cc: <faiz_abbas@ti.com>
Subject: [PATCH 6/7] mmc: sdhci_am654: Add support for clkbuf_sel property
Date: Fri, 19 Jun 2020 18:28:00 +0530	[thread overview]
Message-ID: <20200619125801.9530-7-faiz_abbas@ti.com> (raw)
In-Reply-To: <20200619125801.9530-1-faiz_abbas@ti.com>

Add support for writing new clkbuf_sel property for the J721e 4 bit IP.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 drivers/mmc/host/sdhci_am654.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index f7535ee3a232..f9d24af12396 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -47,6 +47,8 @@
 #define SEL100_MASK		BIT(SEL100_SHIFT)
 #define FREQSEL_SHIFT		8
 #define FREQSEL_MASK		GENMASK(10, 8)
+#define CLKBUFSEL_SHIFT		0
+#define CLKBUFSEL_MASK		GENMASK(2, 0)
 #define DLL_TRIM_ICP_SHIFT	4
 #define DLL_TRIM_ICP_MASK	GENMASK(7, 4)
 #define DR_TY_SHIFT		20
@@ -86,6 +88,7 @@ struct sdhci_am654_data {
 	struct regmap *base;
 	bool legacy_otapdly;
 	int otap_del_sel[11];
+	int clkbuf_sel;
 	int trm_icp;
 	int drv_strength;
 	bool dll_on;
@@ -238,6 +241,9 @@ static void sdhci_am654_set_clock(struct sdhci_host *host, unsigned int clock)
 		regmap_update_bits(sdhci_am654->base, PHY_CTRL5,
 				   SELDLYTXCLK_MASK, 1 << SELDLYTXCLK_SHIFT);
 	}
+
+	regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
+			   sdhci_am654->clkbuf_sel);
 }
 
 static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
@@ -260,6 +266,9 @@ static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
 	      (otap_del_sel << OTAPDLYSEL_SHIFT);
 	regmap_update_bits(sdhci_am654->base, PHY_CTRL4, mask, val);
 
+	regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
+			   sdhci_am654->clkbuf_sel);
+
 	sdhci_set_clock(host, clock);
 }
 
@@ -582,6 +591,8 @@ static int sdhci_am654_get_of_property(struct platform_device *pdev,
 	}
 
 	device_property_read_u32(dev, "ti,strobe-sel", &sdhci_am654->strb_sel);
+	device_property_read_u32(dev, "ti,clkbuf-sel",
+				 &sdhci_am654->clkbuf_sel);
 
 	sdhci_get_of_property(pdev);
 
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-mmc@vger.kernel.org>, <adrian.hunter@intel.com>,
	<will@kernel.org>, <catalin.marinas@arm.com>,
	<robh+dt@kernel.org>, <ulf.hansson@linaro.org>
Cc: faiz_abbas@ti.com
Subject: [PATCH 6/7] mmc: sdhci_am654: Add support for clkbuf_sel property
Date: Fri, 19 Jun 2020 18:28:00 +0530	[thread overview]
Message-ID: <20200619125801.9530-7-faiz_abbas@ti.com> (raw)
In-Reply-To: <20200619125801.9530-1-faiz_abbas@ti.com>

Add support for writing new clkbuf_sel property for the J721e 4 bit IP.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 drivers/mmc/host/sdhci_am654.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index f7535ee3a232..f9d24af12396 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -47,6 +47,8 @@
 #define SEL100_MASK		BIT(SEL100_SHIFT)
 #define FREQSEL_SHIFT		8
 #define FREQSEL_MASK		GENMASK(10, 8)
+#define CLKBUFSEL_SHIFT		0
+#define CLKBUFSEL_MASK		GENMASK(2, 0)
 #define DLL_TRIM_ICP_SHIFT	4
 #define DLL_TRIM_ICP_MASK	GENMASK(7, 4)
 #define DR_TY_SHIFT		20
@@ -86,6 +88,7 @@ struct sdhci_am654_data {
 	struct regmap *base;
 	bool legacy_otapdly;
 	int otap_del_sel[11];
+	int clkbuf_sel;
 	int trm_icp;
 	int drv_strength;
 	bool dll_on;
@@ -238,6 +241,9 @@ static void sdhci_am654_set_clock(struct sdhci_host *host, unsigned int clock)
 		regmap_update_bits(sdhci_am654->base, PHY_CTRL5,
 				   SELDLYTXCLK_MASK, 1 << SELDLYTXCLK_SHIFT);
 	}
+
+	regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
+			   sdhci_am654->clkbuf_sel);
 }
 
 static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
@@ -260,6 +266,9 @@ static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
 	      (otap_del_sel << OTAPDLYSEL_SHIFT);
 	regmap_update_bits(sdhci_am654->base, PHY_CTRL4, mask, val);
 
+	regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
+			   sdhci_am654->clkbuf_sel);
+
 	sdhci_set_clock(host, clock);
 }
 
@@ -582,6 +591,8 @@ static int sdhci_am654_get_of_property(struct platform_device *pdev,
 	}
 
 	device_property_read_u32(dev, "ti,strobe-sel", &sdhci_am654->strb_sel);
+	device_property_read_u32(dev, "ti,clkbuf-sel",
+				 &sdhci_am654->clkbuf_sel);
 
 	sdhci_get_of_property(pdev);
 
-- 
2.17.1


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  parent reply	other threads:[~2020-06-19 12:59 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-19 12:57 [PATCH 0/7] Add support for SD card in AM654x-evm Faiz Abbas
2020-06-19 12:57 ` Faiz Abbas
2020-06-19 12:57 ` [PATCH 1/7] dt-bindings: mmc: sdhci-am654: Add ti,clkbuf-sel binding Faiz Abbas
2020-06-19 12:57   ` Faiz Abbas
2020-06-19 12:57 ` [PATCH 2/7] mmc: sdhci_am654: Add flag for PHY calibration Faiz Abbas
2020-06-19 12:57   ` Faiz Abbas
2020-06-19 12:57 ` [PATCH 3/7] mmc: sdhci_am654: Add Support for SR2.0 Faiz Abbas
2020-06-19 12:57   ` Faiz Abbas
2020-06-19 12:57 ` [PATCH 4/7] mmc: sdhci_am654: Fix conditions for enabling dll Faiz Abbas
2020-06-19 12:57   ` Faiz Abbas
2020-06-19 12:57 ` [PATCH 5/7] mmc: sdhci_am654: Update delay chain configuration Faiz Abbas
2020-06-19 12:57   ` Faiz Abbas
2020-06-19 12:58 ` Faiz Abbas [this message]
2020-06-19 12:58   ` [PATCH 6/7] mmc: sdhci_am654: Add support for clkbuf_sel property Faiz Abbas
2020-06-19 12:58 ` [PATCH 7/7] arm64: defconfig: Enable AM654x SDHCI controller Faiz Abbas
2020-06-19 12:58   ` Faiz Abbas
2020-07-16 12:19   ` Faiz Abbas
2020-07-16 12:19     ` Faiz Abbas
2020-07-16 13:25     ` Sekhar Nori
2020-07-16 13:25       ` Sekhar Nori
2020-07-16 18:28       ` Arnd Bergmann
2020-07-16 18:28         ` Arnd Bergmann
2020-07-17  8:38         ` Faiz Abbas
2020-07-17  8:38           ` Faiz Abbas
2020-07-17 11:20           ` Tero Kristo
2020-07-17 11:20             ` Tero Kristo
2020-07-17 13:09             ` Arnd Bergmann
2020-07-17 13:09               ` Arnd Bergmann
2020-07-17 13:36               ` Faiz Abbas
2020-07-17 13:36                 ` Faiz Abbas
2020-07-17 13:43               ` Tero Kristo
2020-07-17 13:43                 ` Tero Kristo
2020-07-03  7:27 ` [PATCH 0/7] Add support for SD card in AM654x-evm Faiz Abbas
2020-07-03  7:27   ` Faiz Abbas
2020-07-06 14:48 ` Ulf Hansson
2020-07-06 14:48   ` Ulf Hansson

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