@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/console.h>
+#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
@@ -28,6 +29,7 @@
#include <mach/gpio.h>
#include <mach/da8xx.h>
#include <mach/asp.h>
+#include <mach/usb.h>
#define DA830_EVM_PHY_MASK 0x0
#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
@@ -84,6 +86,127 @@ static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
.bus_delay = 0, /* usec */
};
+/*
+ * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
+ */
+#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
+#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
+
+static const short da830_evm_usb11_pins[] = {
+ DA830_GPIO1_15, DA830_GPIO2_4,
+ -1
+};
+
+static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
+
+static int da830_evm_usb_set_power(unsigned port, int on)
+{
+ gpio_set_value(ON_BD_USB_DRV, on);
+ return 0;
+}
+
+static int da830_evm_usb_get_power(unsigned port)
+{
+ return gpio_get_value(ON_BD_USB_DRV);
+}
+
+static int da830_evm_usb_get_oci(unsigned port)
+{
+ return !gpio_get_value(ON_BD_USB_OVC);
+}
+
+static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
+
+static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
+{
+ int irq = gpio_to_irq(ON_BD_USB_OVC);
+ int error = 0;
+
+ if (handler != NULL) {
+ da830_evm_usb_ocic_handler = handler;
+
+ error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "OHCI over-current indicator", NULL);
+ if (error)
+ printk(KERN_ERR "%s: could not request IRQ to watch "
+ "over-current indicator changes\n", __func__);
+ } else
+ free_irq(irq, NULL);
+
+ return error;
+}
+
+static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
+ .set_power = da830_evm_usb_set_power,
+ .get_power = da830_evm_usb_get_power,
+ .get_oci = da830_evm_usb_get_oci,
+ .ocic_notify = da830_evm_usb_ocic_notify,
+
+ /* TPS2065 switch @ 5V */
+ .potpgt = (3 + 1) / 2, /* 3 ms max */
+};
+
+static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
+{
+ da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
+ return IRQ_HANDLED;
+}
+
+static __init void da830_evm_usb_init(void)
+{
+ u32 cfgchip2;
+ int ret;
+
+ /*
+ * Set up USB clock/mode in the CFGCHIP2 register.
+ * FYI: CFGCHIP2 is 0x0000ef00 initially.
+ */
+ cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
+
+ /* USB2.0 PHY reference clock is 24 MHz */
+ cfgchip2 &= ~CFGCHIP2_REFFREQ;
+ cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
+
+ /*
+ * Select internal reference clock for USB 2.0 PHY
+ * and use it as a clock source for USB 1.1 PHY
+ * (this is the default setting anyway).
+ */
+ cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
+ cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
+
+ __raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
+
+ ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
+ if (ret) {
+ pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
+ __func__, ret);
+ return;
+ }
+
+ ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
+ if (ret) {
+ printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
+ "power control: %d\n", __func__, ret);
+ return;
+ }
+ gpio_direction_output(ON_BD_USB_DRV, 0);
+
+ ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
+ if (ret) {
+ printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
+ "over-current indicator: %d\n", __func__, ret);
+ return;
+ }
+ gpio_direction_input(ON_BD_USB_OVC);
+
+ ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
+ if (ret)
+ pr_warning("%s: USB 1.1 registration failed: %d\n",
+ __func__, ret);
+}
+
static struct davinci_uart_config da830_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
@@ -167,6 +290,8 @@ static __init void da830_evm_init(void)
pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
ret);
+ da830_evm_usb_init();
+
soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
soc_info->emac_pdata->rmii_en = 1;