diff options
Diffstat (limited to 'src/southbridge/nvidia/ck804/ck804_usb.c')
| -rw-r--r-- | src/southbridge/nvidia/ck804/ck804_usb.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/src/southbridge/nvidia/ck804/ck804_usb.c b/src/southbridge/nvidia/ck804/ck804_usb.c index 6e70d055fa..70793d1b61 100644 --- a/src/southbridge/nvidia/ck804/ck804_usb.c +++ b/src/southbridge/nvidia/ck804/ck804_usb.c @@ -2,6 +2,7 @@ * Copyright 2004 Tyan Computer * by yhlu@tyan.com */ + #include <console/console.h> #include <device/device.h> #include <device/pci.h> @@ -9,34 +10,41 @@ #include <device/pci_ops.h> #include "ck804.h" -static void usb1_init(struct device *dev) { - struct southbridge_nvidia_ck804_config const * conf=dev->chip_info; +static void usb1_init(struct device *dev) +{ + struct southbridge_nvidia_ck804_config const *conf = dev->chip_info; if (conf->usb1_hc_reset) { - //Somehow the warm reset does not really resets the USB controller. - //Later, during boot, when the Bus Master bit is set, the USB - //controller trashes the memory, causing weird misbehavior. - //Was detected on Sun Ultra40, where mptable was damaged. - uint32_t bar0=pci_read_config32(dev,0x10); - uint32_t* regs=(uint32_t*)(bar0&~0xfff); - regs[2]|=1; //OHCI USB HCCommandStatus Register, HostControllerReset bit + /* + * Somehow the warm reset does not really reset the USB + * controller. Later, during boot, when the Bus Master bit is + * set, the USB controller trashes the memory, causing weird + * misbehavior. Was detected on Sun Ultra40, where mptable + * was damaged. + */ + uint32_t bar0 = pci_read_config32(dev, 0x10); + uint32_t *regs = (uint32_t *) (bar0 & ~0xfff); + + /* OHCI USB HCCommandStatus Register, HostControllerReset bit */ + regs[2] |= 1; } } static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device) { pci_write_config32(dev, 0x40, - ((device & 0xffff) << 16) | (vendor & 0xffff)); + ((device & 0xffff) << 16) | (vendor & 0xffff)); } + static struct pci_operations lops_pci = { .set_subsystem = lpci_set_subsystem, }; -static struct device_operations usb_ops = { +static struct device_operations usb_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = usb1_init, -// .enable = ck804_enable, + // .enable = ck804_enable, .scan_bus = 0, .ops_pci = &lops_pci, }; @@ -46,4 +54,3 @@ static const struct pci_driver usb_driver __pci_driver = { .vendor = PCI_VENDOR_ID_NVIDIA, .device = PCI_DEVICE_ID_NVIDIA_CK804_USB, }; - |