| /* |
| * (C) 2003 Linux Networx, SuSE Linux AG |
| * 2006.1 yhlu add dest apicid for IRQ0 |
| */ |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <pc80/mc146818rtc.h> |
| #include <pc80/isa-dma.h> |
| #include <cpu/x86/lapic.h> |
| #include <arch/ioapic.h> |
| #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) |
| #include <arch/acpi.h> |
| #include <arch/acpigen.h> |
| #include <cpu/amd/powernow.h> |
| #endif |
| #include <stdlib.h> |
| #include <string.h> |
| #include "amd8111.h" |
| |
| #define NMI_OFF 0 |
| |
| static void enable_hpet(struct device *dev) |
| { |
| unsigned long hpet_address; |
| |
| pci_write_config32(dev,0xa0, 0xfed00001); |
| hpet_address = pci_read_config32(dev,0xa0)& 0xfffffffe; |
| printk(BIOS_DEBUG, "enabling HPET @0x%lx\n", hpet_address); |
| |
| } |
| |
| static void lpc_init(struct device *dev) |
| { |
| uint8_t byte; |
| int nmi_option; |
| |
| /* IO APIC initialization */ |
| byte = pci_read_config8(dev, 0x4B); |
| byte |= 1; |
| pci_write_config8(dev, 0x4B, byte); |
| /* Don't rename IO APIC */ |
| setup_ioapic(VIO_APIC_VADDR, 0); |
| |
| /* posted memory write enable */ |
| byte = pci_read_config8(dev, 0x46); |
| pci_write_config8(dev, 0x46, byte | (1<<0)); |
| |
| /* Enable 5Mib Rom window */ |
| byte = pci_read_config8(dev, 0x43); |
| byte |= 0xc0; |
| pci_write_config8(dev, 0x43, byte); |
| |
| /* Enable Port 92 fast reset */ |
| byte = pci_read_config8(dev, 0x41); |
| byte |= (1 << 5); |
| pci_write_config8(dev, 0x41, byte); |
| |
| /* Enable Error reporting */ |
| /* Set up sync flood detected */ |
| byte = pci_read_config8(dev, 0x47); |
| byte |= (1 << 1); |
| pci_write_config8(dev, 0x47, byte); |
| |
| /* Set up NMI on errors */ |
| byte = pci_read_config8(dev, 0x40); |
| byte |= (1 << 1); /* clear PW2LPC error */ |
| byte |= (1 << 6); /* clear LPCERR */ |
| pci_write_config8(dev, 0x40, byte); |
| nmi_option = NMI_OFF; |
| get_option(&nmi_option, "nmi"); |
| if (nmi_option) { |
| byte |= (1 << 7); /* set NMI */ |
| pci_write_config8(dev, 0x40, byte); |
| } |
| |
| /* Initialize the real time clock */ |
| cmos_init(0); |
| |
| /* Initialize isa dma */ |
| isa_dma_init(); |
| |
| /* Initialize the High Precision Event Timers */ |
| enable_hpet(dev); |
| } |
| |
| static void amd8111_lpc_read_resources(device_t dev) |
| { |
| struct resource *res; |
| |
| /* Get the normal PCI resources of this device. */ |
| pci_dev_read_resources(dev); |
| |
| /* Add an extra subtractive resource for both memory and I/O. */ |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); |
| res->base = 0; |
| res->size = 0x1000; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); |
| res->base = 0xff800000; |
| res->size = 0x00800000; /* 8 MB for flash */ |
| res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | |
| 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 lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device) |
| { |
| pci_write_config32(dev, 0x70, |
| ((device & 0xffff) << 16) | (vendor & 0xffff)); |
| } |
| |
| #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) |
| |
| extern u16 pm_base; |
| |
| unsigned long acpi_fill_mcfg(unsigned long current) |
| { |
| /* Just a dummy */ |
| return current; |
| } |
| |
| static void southbridge_acpi_fill_ssdt_generator(device_t device) { |
| #if CONFIG_SET_FIDVID |
| amd_generate_powernow(pm_base + 0x10, 6, 1); |
| acpigen_write_mainboard_resources("\\_SB.PCI0.MBRS", "_CRS"); |
| #endif |
| } |
| |
| #endif |
| |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = lpci_set_subsystem, |
| }; |
| |
| static struct device_operations lpc_ops = { |
| .read_resources = amd8111_lpc_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = lpc_init, |
| #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) |
| .write_acpi_tables = acpi_write_hpet, |
| .acpi_fill_ssdt_generator = southbridge_acpi_fill_ssdt_generator, |
| #endif |
| .scan_bus = scan_lpc_bus, |
| .enable = amd8111_enable, |
| .ops_pci = &lops_pci, |
| }; |
| |
| static const struct pci_driver lpc_driver __pci_driver = { |
| .ops = &lpc_ops, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .device = PCI_DEVICE_ID_AMD_8111_ISA, |
| }; |