@@ -26,6 +26,9 @@
#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
+#define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
+#define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
+
static short omapl138_hawk_mii_pins[] __initdata = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
@@ -170,6 +173,94 @@ static struct davinci_mmc_config da850_mmc_config = {
.version = MMC_CTLR_VERSION_2,
};
+static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id);
+static da8xx_ocic_handler_t hawk_usb_ocic_handler;
+
+static const short da850_hawk_usb11_pins[] = {
+ DA850_GPIO2_4, DA850_GPIO6_13,
+ -1
+};
+static int hawk_usb_set_power(unsigned port, int on)
+{
+ gpio_set_value(DA850_USB1_VBUS_PIN, on);
+ return 0;
+}
+
+static int hawk_usb_get_power(unsigned port)
+{
+ return gpio_get_value(DA850_USB1_VBUS_PIN);
+}
+
+static int hawk_usb_get_oci(unsigned port)
+{
+ return !gpio_get_value(DA850_USB1_OC_PIN);
+}
+
+static int hawk_usb_ocic_notify(da8xx_ocic_handler_t handler)
+{
+ int irq = gpio_to_irq(DA850_USB1_OC_PIN);
+ int error = 0;
+
+ if (handler != NULL) {
+ hawk_usb_ocic_handler = handler;
+
+ error = request_irq(irq, omapl138_hawk_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 omapl138_hawk_usb11_pdata = {
+ .set_power = hawk_usb_set_power,
+ .get_power = hawk_usb_get_power,
+ .get_oci = hawk_usb_get_oci,
+ .ocic_notify = hawk_usb_ocic_notify,
+ /* TPS2065 switch @ 5V */
+ .potpgt = (3 + 1) / 2, /* 3 ms max */
+};
+
+static irqreturn_t omapl138_hawk_usb_ocic_irq(int irq, void *dev_id)
+{
+ hawk_usb_ocic_handler(&omapl138_hawk_usb11_pdata, 1);
+ return IRQ_HANDLED;
+}
+
+static __init void omapl138_hawk_usb_init(void)
+{
+ int ret;
+ u32 cfgchip2;
+ /*
+ * Setup the Ref. clock frequency for the HAWK at 24 MHz.
+ */
+ cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
+ cfgchip2 &= ~CFGCHIP2_REFFREQ;
+ cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
+ __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
+
+ ret = gpio_request(DA850_USB1_VBUS_PIN, "USB1 VBUS\n");
+ 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(DA850_USB1_VBUS_PIN, 0);
+
+ ret = gpio_request(DA850_USB1_OC_PIN, "USB1 OC");
+ 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(DA850_USB1_OC_PIN);
+}
+
static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
.enabled_uarts = 0x7,
};
@@ -223,6 +314,16 @@ static __init void omapl138_hawk_init(void)
pr_warning("omapl138_hawk_init: "
"mmcsd0 registration failed: %d\n", ret);
+ ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
+ if (ret)
+ pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
+ __func__, ret);
+ omapl138_hawk_usb_init();
+ ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
+ if (ret)
+ pr_warning("%s: USB 1.1 registration failed: %d\n",
+ __func__, ret);
+
ret = da8xx_register_watchdog();
if (ret)
pr_warning("omapl138_hawk_init: "
@@ -345,6 +345,21 @@ static struct clk aemif_clk = {
.flags = ALWAYS_ENABLED,
};
+static struct clk usb11_clk = {
+ .name = "usb11",
+ .parent = &pll0_sysclk4,
+ .lpsc = DA8XX_LPSC1_USB11,
+ .gpsc = 1,
+ .flags = ALWAYS_ENABLED,
+ };
+
+static struct clk usb20_clk = {
+ .name = "usb20",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC1_USB20,
+ .gpsc = 1,
+ };
+
static struct clk_lookup da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -387,6 +402,8 @@ static struct clk_lookup da850_clks[] = {
CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
CLK(NULL, "aemif", &aemif_clk),
+ CLK(NULL, "usb11", &usb11_clk),
+ CLK(NULL, "usb20", &usb20_clk),
CLK(NULL, NULL, NULL),
};
@@ -548,6 +565,8 @@ static const struct mux_config da850_pins[] = {
MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
+ MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false)
+ MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false)
MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false)
#endif
};
@@ -913,6 +913,8 @@ enum davinci_da850_index {
DA850_GPIO2_15,
DA850_GPIO4_0,
DA850_GPIO4_1,
+ DA850_GPIO2_4,
+ DA850_GPIO6_13,
DA850_RTC_ALARM,
};