linux-kernel - [PATCH 2/2] mmc: sdhci_am654: Add Support for TI's AM64 SoC

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Date:   Wed, 13 Jan 2021 17:29:08 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Sekhar Nori <nsekhar@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Faiz Abbas <faiz_abbas@...com>,
        Aswath Govindraju <a-govindraju@...com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] mmc: sdhci_am654: Add Support for TI's AM64 SoC

From: Faiz Abbas <faiz_abbas@...com>

Add support for the controller present on the AM64x SoC.

There are instances:
sdhci0: 8bit bus width, max 400 MBps
sdhci1: 4bit bus width, max 100 MBps

Signed-off-by: Faiz Abbas <faiz_abbas@...com>
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Aswath Govindraju <a-govindraju@...com>
---
 drivers/mmc/host/sdhci_am654.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index a64ea143d185..7a34649b0754 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -514,6 +514,26 @@ static const struct sdhci_am654_driver_data sdhci_j721e_4bit_drvdata = {
 	.flags = IOMUX_PRESENT,
 };
 
+static const struct sdhci_pltfm_data sdhci_am64_8bit_pdata = {
+	.ops = &sdhci_j721e_8bit_ops,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+};
+
+static const struct sdhci_am654_driver_data sdhci_am64_8bit_drvdata = {
+	.pdata = &sdhci_am64_8bit_pdata,
+	.flags = DLL_PRESENT | DLL_CALIB,
+};
+
+static const struct sdhci_pltfm_data sdhci_am64_4bit_pdata = {
+	.ops = &sdhci_j721e_4bit_ops,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+};
+
+static const struct sdhci_am654_driver_data sdhci_am64_4bit_drvdata = {
+	.pdata = &sdhci_am64_4bit_pdata,
+	.flags = IOMUX_PRESENT,
+};
+
 static const struct soc_device_attribute sdhci_am654_devices[] = {
 	{ .family = "AM65X",
 	  .revision = "SR1.0",
@@ -737,6 +757,14 @@ static const struct of_device_id sdhci_am654_of_match[] = {
 		.compatible = "ti,j721e-sdhci-4bit",
 		.data = &sdhci_j721e_4bit_drvdata,
 	},
+	{
+		.compatible = "ti,am64-sdhci-8bit",
+		.data = &sdhci_am64_8bit_drvdata,
+	},
+	{
+		.compatible = "ti,am64-sdhci-4bit",
+		.data = &sdhci_am64_4bit_drvdata,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sdhci_am654_of_match);
-- 
2.17.1