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From: Faiz Abbas <faiz_abbas@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v5 12/15] mmc: am654_sdhci: Add a platform specific set_control_reg() callback
Date: Wed, 29 May 2019 15:15:12 +0530	[thread overview]
Message-ID: <20190529094515.13517-13-faiz_abbas@ti.com> (raw)
In-Reply-To: <20190529094515.13517-1-faiz_abbas@ti.com>

Add a platform specific set_control_reg() callback to help switch to
UHS speed modes.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
 drivers/mmc/am654_sdhci.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c
index 8e07baa74f..8e4147c165 100644
--- a/drivers/mmc/am654_sdhci.c
+++ b/drivers/mmc/am654_sdhci.c
@@ -75,6 +75,21 @@ struct am654_sdhci_plat {
 	bool dll_on;
 };
 
+static void am654_sdhci_set_control_reg(struct sdhci_host *host)
+{
+	struct mmc *mmc = (struct mmc *)host->mmc;
+	u32 reg;
+
+	if (IS_SD(host->mmc) &&
+	    mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) {
+		reg = sdhci_readw(host, SDHCI_HOST_CONTROL2);
+		reg |= SDHCI_CTRL_VDD_180;
+		sdhci_writew(host, reg, SDHCI_HOST_CONTROL2);
+	}
+
+	sdhci_set_uhs_timing(host);
+}
+
 static int am654_sdhci_set_ios_post(struct sdhci_host *host)
 {
 	struct udevice *dev = host->mmc->dev;
@@ -155,7 +170,8 @@ static int am654_sdhci_set_ios_post(struct sdhci_host *host)
 }
 
 const struct sdhci_ops am654_sdhci_ops = {
-	.set_ios_post = &am654_sdhci_set_ios_post,
+	.set_ios_post		= &am654_sdhci_set_ios_post,
+	.set_control_reg	= &am654_sdhci_set_control_reg,
 };
 
 int am654_sdhci_init(struct am654_sdhci_plat *plat)
-- 
2.19.2

  parent reply	other threads:[~2019-05-29  9:45 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29  9:45 [U-Boot] [PATCH v5 00/15] Add Support for eMMC in Am65x-evm Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 01/15] arm64: dts: k3: Sync sdhci0 node from kernel and change driver name Faiz Abbas
2019-06-04  5:28   ` Lokesh Vutla
2019-06-04 13:12     ` Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 02/15] mmc: am654_sdhci: Remove quirks Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 03/15] regmap: Add API regmap_init_mem_index() Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 04/15] mmc: sdhci: Add support for sdhci-caps-mask Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 05/15] mmc: sdhci: Make sdhci_set_clock() non static Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 06/15] arm: dts: k3: Add phy specific properties to SD card node Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 07/15] mmc: sdhci: Make set_ios_post() return int Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 08/15] mmc: am654_sdhci: Add Support for PHY Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 09/15] configs: am65x_evm: Enable CONFIG_REGMAP Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 10/15] mmc: am654_sdhci: Use f_max in mmc_config Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 11/15] mmc: sdhci: Add support for HOST_CONTROL2 and setting UHS timings Faiz Abbas
2019-05-29  9:45 ` Faiz Abbas [this message]
2019-05-29  9:45 ` [U-Boot] [PATCH v5 13/15] configs: am65x: Add configs to support environment in eMMC Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 14/15] am65x_evm: Add Support for creating a filesystem GPT partition " Faiz Abbas
2019-05-29  9:45 ` [U-Boot] [PATCH v5 15/15] configs: am65x_evm_a53: Add Support for creating GPT partitions Faiz Abbas

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