Usb2244 driver needs to be reset to bring usb2244 out of reset. This
driver will reset the controller using gpio.
Signed-off-by: T Karthik Reddy <t.karthik.re...@xilinx.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbar...@amd.com>
---
MAINTAINERS | 1 +
drivers/misc/Kconfig | 8 +++++
drivers/misc/Makefile | 1 +
drivers/misc/usb2244.c | 69 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 79 insertions(+)
create mode 100644 drivers/misc/usb2244.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e950c3b45..be50fddc38 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -815,6 +815,7 @@ F: drivers/i2c/i2c-cdns.c
F: drivers/i2c/muxes/pca954x.c
F: drivers/i2c/zynq_i2c.c
F: drivers/mailbox/zynqmp-ipi.c
+F: drivers/misc/usb2244.c
F: drivers/misc/usb5744.c
F: drivers/mmc/zynq_sdhci.c
F: drivers/mtd/nand/raw/zynq_nand.c
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index b7022c31ee..3b6ca7d4bc 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -696,4 +696,12 @@ config USB5744
This enables support for Microchip USB5744 Hub. This driver reset
the hub using gpio pin and configure hub via i2c.
+config USB2244
+ bool "Microchip USB2244 Ultra Fast USB 2.0 SD driver"
+ depends on DM_USB && DM_GPIO
+ help
+ This option enables support for Microchip USB2244 Ultra Fast USB 2.0
+ SD controller. This driver will reset the usb2244 controller using a
+ gpio pin.
+
endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 19f5afa885..82b7b92c0a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -91,3 +91,4 @@ obj-$(CONFIG_ESM_K3) += k3_esm.o
obj-$(CONFIG_ESM_PMIC) += esm_pmic.o
obj-$(CONFIG_SL28CPLD) += sl28cpld.o
obj-$(CONFIG_USB5744) += usb5744.o
+obj-$(CONFIG_USB2244) += usb2244.o
diff --git a/drivers/misc/usb2244.c b/drivers/misc/usb2244.c
new file mode 100644
index 0000000000..19dcd1eef6
--- /dev/null
+++ b/drivers/misc/usb2244.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for the Microchip USB2244 Ultra Fast USB 2.0 SD controller.
+ *
+ * Copyright (C) 2024,Advanced Micro Devices, Inc.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <usb.h>
+#include <asm/gpio.h>
+#include <linux/delay.h>
+
+struct usb2244_priv {
+ struct gpio_desc reset_gpio;
+};
+
+static int usb2244_probe(struct udevice *dev)
+{
+ struct usb2244_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = dm_gpio_set_value(&priv->reset_gpio, 1);
+ if (ret)
+ return ret;
+
+ mdelay(5);
+
+ ret = dm_gpio_set_value(&priv->reset_gpio, 0);
+ if (ret)
+ return ret;
+
+ mdelay(5);
+
+ return 0;
+}
+
+static int usb2244_plat(struct udevice *dev)
+{
+ struct usb2244_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = gpio_request_by_name(dev, "reset-gpios", 0, &priv->reset_gpio,
+ GPIOD_IS_OUT | GPIOD_ACTIVE_LOW);
+ if (ret) {
+ printf("%s, gpio request failed err: %d\n", __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+U_BOOT_DRIVER(usb2244) = {
+ .name = "usb2244",
+ .id = UCLASS_MISC,
+ .probe = usb2244_probe,
+ .of_to_plat = usb2244_plat,
+ .priv_auto = sizeof(struct usb2244_priv),
+};
+
+static const struct usb_device_id usb2244_id_table[] = {
+ {
+ .idVendor = 0x0424,
+ .idProduct = 0x2240
+ },
+ { }
+};
+
+U_BOOT_USB_DEVICE(usb2244, usb2244_id_table);
--
2.25.1
