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soc/intel/quark: Add USB device port support 

Add initialization for the USB device port.

TEST=Build and run on Galileo Gen2

Change-Id: Icf83747f778f6e1ac976cd448a94311030e79e4f
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14941
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Lee Leahy 2016-05-22 09:55:22 -07:00 committed by Leroy P Leahy
parent 2c51572435
commit fd45658a68
2 changed files with 33 additions and 3 deletions
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33
src/soc/intel/quark/ehci.c
View File

@ -28,11 +28,17 @@
#define EHCI_OUT_THRESHOLD_VALUE 0x7f
#define EHCI_IN_THRESHOLD_VALUE 0x7f
/* Platform init USB device interrupt masks */
#define V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG (0x0000007f)
#define V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG \
(B_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG_OUT_EP_MASK \
| B_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG_IN_EP_MASK)
/* In order to configure the USB PHY to use clk120 (ickusbcoreclk) as PLL
* reference clock and Port2 as a USB device port, the following sequence must
* be followed
*/
static const struct reg_script init_script[] = {
static const struct reg_script ehci_init_script[] = {
/* Set packet buffer OUT/IN thresholds */
REG_MMIO_RMW32(R_IOH_EHCI_INSNREG01,
@ -85,10 +91,31 @@ static const struct reg_script init_script[] = {
REG_SCRIPT_END
};
static const struct reg_script usb_device_port_init_script[] = {
/* Mask and clear controller interrupts */
REG_MMIO_WRITE32(R_IOH_USBDEVICE_D_INTR_MSK_UDC_REG,
V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG),
REG_MMIO_WRITE32(R_IOH_USBDEVICE_D_INTR_UDC_REG,
V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG),
/* Mask and clear end point interrupts */
REG_MMIO_WRITE32(R_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG,
V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG),
REG_MMIO_WRITE32(R_IOH_USBDEVICE_EP_INTR_UDC_REG,
V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG),
REG_SCRIPT_END
};
static void init(device_t dev)
{
printk(BIOS_INFO, "Initializing USB PLLs\n");
reg_script_run_on_dev(dev, init_script);
if ((dev->path.pci.devfn & 7) == EHCI_FUNC) {
printk(BIOS_INFO, "Initializing USB PLLs\n");
reg_script_run_on_dev(dev, ehci_init_script);
} else {
printk(BIOS_INFO, "Initializing USB device port\n");
reg_script_run_on_dev(dev, usb_device_port_init_script);
}
}
static struct device_operations device_ops = {

3
src/soc/intel/quark/include/soc/pci_devs.h
View File

@ -33,6 +33,9 @@
/* IO Fabric 1 */
#define SIO1_DEV 0x14
#define HSUART1_DEV SIO1_DEV
#define USB_DEV_PORT_FUNC 2
#define EHCI_FUNC 3
#define OHCI_FUNC 4
#define HSUART1_FUNC 5
/* IO Fabric 2 */