diff options
author | stepan <stepan@coresystems.de> | 2010-12-08 05:42:47 +0000 |
---|---|---|
committer | Stefan Reinauer <stepan@openbios.org> | 2010-12-08 05:42:47 +0000 |
commit | 836ae29ee325b1e3d28ff59468cc50913b1e24ce (patch) | |
tree | e2691a1e1ee1d795ffe7a99fb93778a9910044c2 /src/southbridge/amd/amd8111/lpc.c | |
parent | 1bc5ccac51d94cfb4f9666ecf2cac619d8dc80a6 (diff) |
first round name simplification. drop the <component>_ prefix.
the prefix was introduced in the early v2 tree many years ago
because our old build system "newconfig" could not handle two files with
the same name in different paths like /path/to/usb.c and
/another/path/to/usb.c correctly. Only one of the files would end up
being compiled into the final image.
Since Kconfig (actually since shortly before we switched to Kconfig) we
don't suffer from that problem anymore. So we could drop the sb700_
prefix from all those filenames (or, the <componentname>_ prefix in general)
- makes it easier to fork off a new chipset
- makes it easier to diff against other chipsets
- storing redundant information in filenames seems wrong
Signed-off-by: <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6149 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/amd/amd8111/lpc.c')
-rw-r--r-- | src/southbridge/amd/amd8111/lpc.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/southbridge/amd/amd8111/lpc.c b/src/southbridge/amd/amd8111/lpc.c new file mode 100644 index 0000000000..e9bd5fc42b --- /dev/null +++ b/src/southbridge/amd/amd8111/lpc.c @@ -0,0 +1,133 @@ +/* + * (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> +#include <stdlib.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(IO_APIC_ADDR, 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 */ + rtc_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)); +} + +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, + .scan_bus = scan_static_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, +}; |