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
next prev parent reply other threads:[~2020-06-19 12:59 UTC|newest]
Thread overview: 18+ 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 ` [PATCH 1/7] dt-bindings: mmc: sdhci-am654: Add ti,clkbuf-sel binding 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 ` [PATCH 3/7] mmc: sdhci_am654: Add Support for SR2.0 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 ` [PATCH 5/7] mmc: sdhci_am654: Update delay chain configuration Faiz Abbas
2020-06-19 12:58 ` Faiz Abbas [this message]
2020-06-19 12:58 ` [PATCH 7/7] arm64: defconfig: Enable AM654x SDHCI controller Faiz Abbas
2020-07-16 12:19 ` Faiz Abbas
2020-07-16 13:25 ` Sekhar Nori
2020-07-16 18:28 ` Arnd Bergmann
2020-07-17 8:38 ` Faiz Abbas
2020-07-17 11:20 ` Tero Kristo
2020-07-17 13:09 ` Arnd Bergmann
2020-07-17 13:36 ` Faiz Abbas
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
2020-07-06 14:48 ` Ulf Hansson
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