diff options
Diffstat (limited to 'src/southbridge/via/vt8235/lpc.c')
-rw-r--r-- | src/southbridge/via/vt8235/lpc.c | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/src/southbridge/via/vt8235/lpc.c b/src/southbridge/via/vt8235/lpc.c deleted file mode 100644 index e6aac65375..0000000000 --- a/src/southbridge/via/vt8235/lpc.c +++ /dev/null @@ -1,261 +0,0 @@ -#include <arch/io.h> -#include <console/console.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ops.h> -#include <device/pci_ids.h> -#include <pc80/mc146818rtc.h> -#include <arch/ioapic.h> -#include "chip.h" - -/* The epia-m is really short on interrupts available, so PCI interrupts A & D are ganged together and so are B & C. - This is how the Award bios sets it up too. - epia can be more generous as it does not need to reserve interrupts for cardbus devices, but if changed then - make sure that ACPI dsdt is changed to suit. - - IRQ 0 = timer - IRQ 1 = keyboard - IRQ 2 = cascade - IRQ 3 = COM 2 - IRQ 4 = COM 1 - IRQ 5 = available for PCI interrupts - IRQ 6 = floppy or available for PCI if floppy controller disabled - IRQ 7 = LPT or available if LPT port disabled - IRQ 8 = rtc - IRQ 9 = available for PCI interrupts - IRQ 10 = cardbus slot or available for PCI if no cardbus (ie epia) - IRQ 11 = cardbus slot or available for PCI if no cardbus (ie epia) - IRQ 12 = PS2 mouse (hardwired to 12) - IRQ 13 = legacy FPU interrupt - IRQ 14 = IDE controller 1 - IRQ 15 = IDE controller 2 - -*/ -static const unsigned char pciIrqs[4] = { 5 , 9 , 9, 5 }; - -static const unsigned char usbPins[4] = { 'A','B','C','D'}; -static const unsigned char enetPins[4] = { 'A','B','C','D'}; -static const unsigned char slotPins[4] = { 'B','C','D','A'}; -static const unsigned char firewirePins[4] = { 'B','C','D','A'}; -static const unsigned char vt8235Pins[4] = { 'A','B','C','D'}; -static const unsigned char vgaPins[4] = { 'A','B','C','D'}; -static const unsigned char cbPins[4] = { 'A','B','C','D'}; -static const unsigned char riserPins[4] = { 'A','B','C','D'}; - - -static unsigned char *pin_to_irq(const unsigned char *pin) -{ - static unsigned char Irqs[4]; - int i; - for (i = 0 ; i < 4 ; i++) - Irqs[i] = pciIrqs[ pin[i] - 'A' ]; - - return Irqs; -} - -static void pci_routing_fixup(struct device *dev) -{ - printk(BIOS_INFO, "%s: dev is %p\n", __func__, dev); - - /* set up PCI IRQ routing */ - pci_write_config8(dev, 0x55, pciIrqs[0] << 4); - pci_write_config8(dev, 0x56, pciIrqs[1] | (pciIrqs[2] << 4) ); - pci_write_config8(dev, 0x57, pciIrqs[3] << 4); - - - // firewire built into southbridge - printk(BIOS_INFO, "setting firewire\n"); - pci_assign_irqs(0, 0x0d, pin_to_irq(firewirePins)); - - // Standard usb components - printk(BIOS_INFO, "setting usb\n"); - pci_assign_irqs(0, 0x10, pin_to_irq(usbPins)); - - // VT8235 + sound hardware - printk(BIOS_INFO, "setting vt8235\n"); - pci_assign_irqs(0, 0x11, pin_to_irq(vt8235Pins)); - - // Ethernet built into southbridge - printk(BIOS_INFO, "setting ethernet\n"); - pci_assign_irqs(0, 0x12, pin_to_irq(enetPins)); - - // VGA - printk(BIOS_INFO, "setting vga\n"); - pci_assign_irqs(1, 0x00, pin_to_irq(vgaPins)); - - // PCI slot - printk(BIOS_INFO, "setting pci slot\n"); - pci_assign_irqs(0, 0x14, pin_to_irq(slotPins)); - - // Cardbus slot - printk(BIOS_INFO, "setting cardbus slot\n"); - pci_assign_irqs(0, 0x0a, pin_to_irq(cbPins)); - - // Via 2 slot riser card 2nd slot - printk(BIOS_INFO, "setting riser slot\n"); - pci_assign_irqs(0, 0x13, pin_to_irq(riserPins)); - - printk(BIOS_SPEW, "%s: DONE\n", __func__); -} - -/* - * Set up the power management capabilities directly into ACPI mode. This - * avoids having to handle any System Management Interrupts (SMI's) which I - * can't figure out how to do !!!! - */ - -static void setup_pm(device_t dev) -{ - // Set gen config 0 - pci_write_config8(dev, 0x80, 0x20); - - // Set ACPI base address to IO 0x400 - pci_write_config16(dev, 0x88, 0x0401); - - // set ACPI irq to 5 - pci_write_config8(dev, 0x82, 0x45); - - // primary interrupt channel - pci_write_config16(dev, 0x84, 0x30f2); - - // throttle / stop clock control - pci_write_config8(dev, 0x8d, 0x18); - - pci_write_config8(dev, 0x93, 0x88); - pci_write_config8(dev, 0x94, 0xb0); - pci_write_config8(dev, 0x95, 0xc0); - pci_write_config8(dev, 0x98, 0); - pci_write_config8(dev, 0x99, 0xea); - pci_write_config8(dev, 0xe4, 0x14); - pci_write_config8(dev, 0xe5, 0x08); - - - // Enable ACPI access (and setup like award) - pci_write_config8(dev, 0x81, 0x84); - - outw(0xffff, 0x400); - outw(0xffff, 0x420); - outw(0xffff, 0x428); - outl(0xffffffff, 0x430); - - outw(0x0, 0x424); - outw(0x0, 0x42a); - outw(0x1, 0x42c); - outl(0x0, 0x434); - outl(0x01, 0x438); - outb(0x0, 0x442); - outl(0xffff7fff, 0x448); - outw(0x001, 0x404); -} - -static void vt8235_init(struct device *dev) -{ - unsigned char enables; - - printk(BIOS_DEBUG, "vt8235 init\n"); - - // enable the internal I/O decode - enables = pci_read_config8(dev, 0x6C); - enables |= 0x80; - pci_write_config8(dev, 0x6C, enables); - - // Map 4MB of FLASH into the address space - pci_write_config8(dev, 0x41, 0x7f); - - // Set bit 6 of 0x40, because Award does it (IO recovery time) - // IMPORTANT FIX - EISA 0x4d0 decoding must be on so that PCI - // interrupts can be properly marked as level triggered. - enables = pci_read_config8(dev, 0x40); - enables |= 0x45; - pci_write_config8(dev, 0x40, enables); - - // Set 0x42 to 0xf0 to match Award bios - enables = pci_read_config8(dev, 0x42); - enables |= 0xf0; - pci_write_config8(dev, 0x42, enables); - - /* Set 0x58 to 0x03 to match Award */ - pci_write_config8(dev, 0x58, 0x03); - - /* Set bit 3 of 0x4f to match award (use INIT# as cpu reset) */ - enables = pci_read_config8(dev, 0x4f); - enables |= 0x08; - pci_write_config8(dev, 0x4f, enables); - - // Set bit 3 of 0x4a, to match award (dummy pci request) - enables = pci_read_config8(dev, 0x4a); - enables |= 0x08; - pci_write_config8(dev, 0x4a, enables); - - // Set bit 3 of 0x4f to match award (use INIT# as cpu reset) - enables = pci_read_config8(dev, 0x4f); - enables |= 0x08; - pci_write_config8(dev, 0x4f, enables); - - // Set 0x58 to 0x03 to match Award - pci_write_config8(dev, 0x58, 0x03); - - - /* enable serial irq */ - pci_write_config8(dev, 0x52, 0x9); - - /* dma */ - pci_write_config8(dev, 0x53, 0x00); - - // Power management setup - setup_pm(dev); - - /* set up isa bus -- i/o recovery time, rom write enable, extend-ale */ - pci_write_config8(dev, 0x40, 0x54); - - // Start the rtc - cmos_init(0); -} - -/* total kludge to get lxb to call our children's set/enable functions - these are not called unless this - device has a resource to set - so set a dummy one */ -static void vt8235_read_resources(device_t dev) -{ - struct resource *res; - - pci_dev_read_resources(dev); - - res = new_resource(dev, 1); - res->base = 0x0UL; - res->size = 0x1000UL; - res->limit = 0xffffUL; - res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; - - res = new_resource(dev, 3); /* IOAPIC */ - res->base = IO_APIC_ADDR; - res->size = 0x00001000; - res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; -} - -static void vt8235_set_resources(device_t dev) -{ - //struct resource *resource; - //resource = find_resource(dev,1); - //resource->flags |= IORESOURCE_STORED; - pci_dev_set_resources(dev); -} - -static void southbridge_init(struct device *dev) -{ - vt8235_init(dev); - pci_routing_fixup(dev); -} - -static struct device_operations vt8235_lpc_ops = { - .read_resources = vt8235_read_resources, - .set_resources = vt8235_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = southbridge_init, - .scan_bus = scan_static_bus, -}; - -static const struct pci_driver lpc_driver __pci_driver = { - .ops = &vt8235_lpc_ops, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_8235, -}; |