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From:   rashmi.a@intel.com
To:     michal.simek@xilinx.com, ulf.hansson@linaro.org,
        linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
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        adrian.hunter@intel.com, mahesh.r.vaidya@intel.com,
        nandhini.srikandan@intel.com, rashmi.a@intel.com
Subject: [RESEND PATCH v2 1/4] mmc: sdhci-of-arasan: Add intel Thunder Bay SOC support to the arasan eMMC driver
Date:   Wed, 27 Oct 2021 17:25:13 +0530
Message-Id: <20211027115516.4475-2-rashmi.a@intel.com>
In-Reply-To: <20211027115516.4475-1-rashmi.a@intel.com>
References: <20211027115516.4475-1-rashmi.a@intel.com>
Precedence: bulk

From: Rashmi A <rashmi.a@intel.com>

Intel Thunder Bay SoC eMMC controller is based on Arasan
eMMC 5.1 host controller IP

Signed-off-by: Rashmi A <rashmi.a@intel.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-of-arasan.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 737e2bfdedc2..6a2e5a468424 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -191,6 +191,13 @@ static const struct sdhci_arasan_soc_ctl_map intel_lgm_sdxc_soc_ctl_map = {
 	.hiword_update = false,
 };
 
+static const struct sdhci_arasan_soc_ctl_map thunderbay_soc_ctl_map = {
+	.baseclkfreq = { .reg = 0x0, .width = 8, .shift = 14 },
+	.clockmultiplier = { .reg = 0x4, .width = 8, .shift = 14 },
+	.support64b = { .reg = 0x4, .width = 1, .shift = 24 },
+	.hiword_update = false,
+};
+
 static const struct sdhci_arasan_soc_ctl_map intel_keembay_soc_ctl_map = {
 	.baseclkfreq = { .reg = 0x0, .width = 8, .shift = 14 },
 	.clockmultiplier = { .reg = 0x4, .width = 8, .shift = 14 },
@@ -456,6 +463,15 @@ static const struct sdhci_pltfm_data sdhci_arasan_cqe_pdata = {
 			SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN,
 };
 
+static const struct sdhci_pltfm_data sdhci_arasan_thunderbay_pdata = {
+	.ops = &sdhci_arasan_cqe_ops,
+	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+		SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN |
+		SDHCI_QUIRK2_STOP_WITH_TC |
+		SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400,
+};
+
 #ifdef CONFIG_PM_SLEEP
 /**
  * sdhci_arasan_suspend - Suspend method for the driver
@@ -1132,6 +1148,12 @@ static struct sdhci_arasan_of_data sdhci_arasan_generic_data = {
 	.clk_ops = &arasan_clk_ops,
 };
 
+static const struct sdhci_arasan_of_data sdhci_arasan_thunderbay_data = {
+	.soc_ctl_map = &thunderbay_soc_ctl_map,
+	.pdata = &sdhci_arasan_thunderbay_pdata,
+	.clk_ops = &arasan_clk_ops,
+};
+
 static const struct sdhci_pltfm_data sdhci_keembay_emmc_pdata = {
 	.ops = &sdhci_arasan_cqe_ops,
 	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
@@ -1265,6 +1287,10 @@ static const struct of_device_id sdhci_arasan_of_match[] = {
 		.compatible = "intel,keembay-sdhci-5.1-sdio",
 		.data = &intel_keembay_sdio_data,
 	},
+	{
+		.compatible = "intel,thunderbay-sdhci-5.1",
+		.data = &sdhci_arasan_thunderbay_data,
+	},
 	/* Generic compatible below here */
 	{
 		.compatible = "arasan,sdhci-8.9a",
@@ -1626,7 +1652,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 
 	if (of_device_is_compatible(np, "intel,keembay-sdhci-5.1-emmc") ||
 	    of_device_is_compatible(np, "intel,keembay-sdhci-5.1-sd") ||
-	    of_device_is_compatible(np, "intel,keembay-sdhci-5.1-sdio")) {
+	    of_device_is_compatible(np, "intel,keembay-sdhci-5.1-sdio") ||
+	    of_device_is_compatible(np, "intel,thunderbay-sdhci-5.1")) {
 		sdhci_arasan_update_clockmultiplier(host, 0x0);
 		sdhci_arasan_update_support64b(host, 0x0);
 
-- 
2.17.1