diff options
Diffstat (limited to 'src/mainboard/emulation/qemu-i386')
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/Config.lb | 216 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/auto.c | 38 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/chip.h | 5 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/debug.c | 128 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/failover.c | 29 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/irq_tables.c | 32 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-i386/mainboard.c | 49 |
7 files changed, 497 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-i386/Config.lb b/src/mainboard/emulation/qemu-i386/Config.lb new file mode 100644 index 0000000000..5c3100b601 --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/Config.lb @@ -0,0 +1,216 @@ +# This is a dummy linuxbios for use in bochs or qemu +# +uses HAVE_MP_TABLE +uses HAVE_PIRQ_TABLE +uses USE_FALLBACK_IMAGE +uses HAVE_FALLBACK_BOOT +uses HAVE_HARD_RESET +uses HAVE_OPTION_TABLE +uses USE_OPTION_TABLE +uses CONFIG_ROM_STREAM +uses MAINBOARD +uses ARCH +uses FALLBACK_SIZE +uses STACK_SIZE +uses HEAP_SIZE +uses ROM_SIZE +uses ROM_SECTION_SIZE +uses ROM_IMAGE_SIZE +uses ROM_SECTION_SIZE +uses ROM_SECTION_OFFSET +uses CONFIG_ROM_STREAM_START +uses PAYLOAD_SIZE +uses _ROMBASE +uses XIP_ROM_SIZE +uses XIP_ROM_BASE +uses HAVE_MP_TABLE + +## ROM_SIZE is the size of boot ROM that this board will use. +default ROM_SIZE = 256*1024 + +### +### Build options +### + +## +## Build code for the fallback boot +## +default HAVE_FALLBACK_BOOT=1 + +## +## no MP table +## +default HAVE_MP_TABLE=0 + +## +## Build code to reset the motherboard from linuxBIOS +## +default HAVE_HARD_RESET=1 + +## +## Build code to export a programmable irq routing table +## +default HAVE_PIRQ_TABLE=0 + +## +## Build code to export a CMOS option table +## +default HAVE_OPTION_TABLE=1 + +### +### LinuxBIOS layout values +### + +## ROM_IMAGE_SIZE is the amount of space to allow linuxBIOS to occupy. +#default ROM_IMAGE_SIZE = 65536 +default ROM_IMAGE_SIZE = 32768 + +## +## Use a small 8K stack +## +default STACK_SIZE=0x2000 + +## +## Use a small 16K heap +## +default HEAP_SIZE=0x4000 +default USE_OPTION_TABLE = 0 + +## +## Compute the location and size of where this firmware image +## (linuxBIOS plus bootloader) will live in the boot rom chip. +## +#if USE_FALLBACK_IMAGE + default ROM_SECTION_SIZE = FALLBACK_SIZE + default ROM_SECTION_OFFSET = ( ROM_SIZE - FALLBACK_SIZE ) +#else +# default ROM_SECTION_SIZE = ( ROM_SIZE - FALLBACK_SIZE ) +# default ROM_SECTION_OFFSET = 0 +#end + +## +## Compute the start location and size size of +## The linuxBIOS bootloader. +## +default PAYLOAD_SIZE = ( ROM_SECTION_SIZE - ROM_IMAGE_SIZE ) +default CONFIG_ROM_STREAM_START = (0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1) +default CONFIG_ROM_STREAM = 1 + +## +## Compute where this copy of linuxBIOS will start in the boot rom +## +default _ROMBASE = ( CONFIG_ROM_STREAM_START + PAYLOAD_SIZE ) + +## +## Compute a range of ROM that can cached to speed up linuxBIOS, +## execution speed. +## +## XIP_ROM_SIZE must be a power of 2. +## XIP_ROM_BASE must be a multiple of XIP_ROM_SIZE +## +default XIP_ROM_SIZE=0x8000 +default XIP_ROM_BASE = ( _ROMBASE + ROM_IMAGE_SIZE - XIP_ROM_SIZE ) + +## +## Set all of the defaults for an x86 architecture +## + +arch i386 end +cpu p5 "qemu_cpu" end + +## +## Build the objects we have code for in this directory. +## + +driver mainboard.o + +## +## Romcc output +## +makerule ./failover.E + depends "$(MAINBOARD)/failover.c" + action "$(CPP) -I$(TOP)/src $(ROMCCPPFLAGS) $(CPPFLAGS) $(MAINBOARD)/failover.c > ./failover.E" +end + +makerule ./failover.inc + depends "./failover.E ./romcc" + action "./romcc -O -mcpu=i386 -o failover.inc --label-prefix=failover ./failover.E" +end + +makerule ./auto.E + depends "$(MAINBOARD)/auto.c" + action "$(CPP) -I$(TOP)/src $(ROMCCPPFLAGS) $(CPPFLAGS) $(MAINBOARD)/auto.c > ./auto.E" +end +makerule ./auto.inc + depends "./auto.E ./romcc" + action "./romcc -O -mcpu=i386 ./auto.E " +end + +## +## Build our 16 bit and 32 bit linuxBIOS entry code +## +mainboardinit cpu/i386/entry16.inc +mainboardinit cpu/i386/entry32.inc +ldscript /cpu/i386/entry16.lds +ldscript /cpu/i386/entry32.lds + +## +## Build our reset vector (This is where linuxBIOS is entered) +## +if USE_FALLBACK_IMAGE + mainboardinit cpu/i386/reset16.inc + ldscript /cpu/i386/reset16.lds +else + mainboardinit cpu/i386/reset32.inc + ldscript /cpu/i386/reset32.lds +end + +### Should this be in the northbridge code? +mainboardinit arch/i386/lib/cpu_reset.inc + +## +## Include an id string (For safe flashing) +## +mainboardinit arch/i386/lib/id.inc +ldscript /arch/i386/lib/id.lds + +## +## Setup our mtrrs +## +# mainboardinit cpu/p6/earlymtrr.inc + +### +### This is the early phase of linuxBIOS startup +### Things are delicate and we test to see if we should +### failover to another image. +### +#if USE_FALLBACK_IMAGE +ldscript /arch/i386/lib/failover.lds +mainboardinit ./failover.inc +#end + +### +### O.k. We aren't just an intermediary anymore! +### + +## +## Setup RAM +## +mainboardinit ./auto.inc + +## +## Include the secondary Configuration files +## +dir /pc80 +dir /drivers/emulation/qemu +config chip.h + +northbridge emulation/qemu-i386 "nb_qemu" + +end + +## +## Include the old serial code for those few places that still need it. +## +mainboardinit pc80/serial.inc +mainboardinit arch/i386/lib/console.inc diff --git a/src/mainboard/emulation/qemu-i386/auto.c b/src/mainboard/emulation/qemu-i386/auto.c new file mode 100644 index 0000000000..819a120018 --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/auto.c @@ -0,0 +1,38 @@ +#define ASSEMBLY 1 + +#include <stdint.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <cpu/p6/apic.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/romcc_io.h> +#include <arch/hlt.h> +#include "pc80/serial.c" +#include "arch/i386/lib/console.c" +#include "cpu/p6/earlymtrr.c" + +/* + */ +void udelay(int usecs) +{ + int i; + for(i = 0; i < usecs; i++) + outb(i&0xff, 0x80); +} + +#include "lib/delay.c" +#include "cpu/p6/boot_cpu.c" +#include "debug.c" + +static void main(void) +{ + /* init_timer();*/ + outb(5, 0x80); + + uart_init(); + console_init(); + + //print_pci_devices(); + //dump_pci_devices(); +} diff --git a/src/mainboard/emulation/qemu-i386/chip.h b/src/mainboard/emulation/qemu-i386/chip.h new file mode 100644 index 0000000000..ab5fa3bfd2 --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/chip.h @@ -0,0 +1,5 @@ +extern struct chip_control mainboard_emulation_qemu_i386_control; + +struct mainboard_emulation_qemu_i386_config { + int nothing; +}; diff --git a/src/mainboard/emulation/qemu-i386/debug.c b/src/mainboard/emulation/qemu-i386/debug.c new file mode 100644 index 0000000000..714fcc5783 --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/debug.c @@ -0,0 +1,128 @@ + +static void print_debug_pci_dev(unsigned dev) +{ + print_debug("PCI: "); + print_debug_hex8((dev >> 16) & 0xff); + print_debug_char(':'); + print_debug_hex8((dev >> 11) & 0x1f); + print_debug_char('.'); + print_debug_hex8((dev >> 8) & 7); +} + +static void print_pci_devices(void) +{ + device_t dev; + for(dev = PCI_DEV(0, 0, 0); + dev <= PCI_DEV(0, 0x1f, 0x7); + dev += PCI_DEV(0,0,1)) { + uint32_t id; + id = pci_read_config32(dev, PCI_VENDOR_ID); + if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) { + continue; + } + print_debug_pci_dev(dev); + print_debug("\r\n"); + } +} + +static void dump_pci_device(unsigned dev) +{ + int i; + print_debug_pci_dev(dev); + print_debug("\r\n"); + + for(i = 0; i <= 255; i++) { + unsigned char val; + if ((i & 0x0f) == 0) { + print_debug_hex8(i); + print_debug_char(':'); + } + val = pci_read_config8(dev, i); + print_debug_char(' '); + print_debug_hex8(val); + if ((i & 0x0f) == 0x0f) { + print_debug("\r\n"); + } + } +} + +static void dump_pci_devices(void) +{ + device_t dev; + for(dev = PCI_DEV(0, 0, 0); + dev <= PCI_DEV(0, 0x1f, 0x7); + dev += PCI_DEV(0,0,1)) { + uint32_t id; + id = pci_read_config32(dev, PCI_VENDOR_ID); + if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) { + continue; + } + dump_pci_device(dev); + } +} +#if 0 +static void dump_spd_registers(const struct mem_controller *ctrl) +{ + int i; + print_debug("\r\n"); + for(i = 0; i < 4; i++) { + unsigned device; + device = ctrl->channel0[i]; + if (device) { + int j; + print_debug("dimm: "); + print_debug_hex8(i); + print_debug(".0: "); + print_debug_hex8(device); + for(j = 0; j < 256; j++) { + int status; + unsigned char byte; + if ((j & 0xf) == 0) { + print_debug("\r\n"); + print_debug_hex8(j); + print_debug(": "); + } + status = smbus_read_byte(device, j); + if (status < 0) { + print_debug("bad device\r\n"); + break; + } + byte = status & 0xff; + print_debug_hex8(byte); + print_debug_char(' '); + } + print_debug("\r\n"); + } + device = ctrl->channel1[i]; + if (device) { + int j; + print_debug("dimm: "); + print_debug_hex8(i); + print_debug(".1: "); + print_debug_hex8(device); + for(j = 0; j < 256; j++) { + int status; + unsigned char byte; + if ((j & 0xf) == 0) { + print_debug("\r\n"); + print_debug_hex8(j); + print_debug(": "); + } + status = smbus_read_byte(device, j); + if (status < 0) { + print_debug("bad device\r\n"); + break; + } + byte = status & 0xff; + print_debug_hex8(byte); + print_debug_char(' '); + } + print_debug("\r\n"); + } + } +} +#endif diff --git a/src/mainboard/emulation/qemu-i386/failover.c b/src/mainboard/emulation/qemu-i386/failover.c new file mode 100644 index 0000000000..bd0df4e89d --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/failover.c @@ -0,0 +1,29 @@ +#define ASSEMBLY 1 +#include <stdint.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <arch/io.h> +#include "arch/romcc_io.h" +#include "pc80/mc146818rtc_early.c" +#include "cpu/p6/boot_cpu.c" + +static void main(void) +{ + /* for now, just always assume failure */ + +#if 0 + /* Is this a cpu reset? */ + if (cpu_init_detected()) { + if (last_boot_normal()) { + asm("jmp __normal_image"); + } else { + asm("jmp __cpu_reset"); + } + } + + /* This is the primary cpu how should I boot? */ + else if (do_normal_boot()) { + asm("jmp __normal_image"); + } +#endif +} diff --git a/src/mainboard/emulation/qemu-i386/irq_tables.c b/src/mainboard/emulation/qemu-i386/irq_tables.c new file mode 100644 index 0000000000..894c27dec5 --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/irq_tables.c @@ -0,0 +1,32 @@ +/* This file was generated by getpir.c, do not modify! + (but if you do, please run checkpir on it to verify) + Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up + + Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM +*/ + +#include <arch/pirq_routing.h> + +const struct irq_routing_table intel_irq_routing_table = { + PIRQ_SIGNATURE, /* u32 signature */ + PIRQ_VERSION, /* u16 version */ + 32+16*5, /* there can be total 5 devices on the bus */ + 0, /* Where the interrupt router lies (bus) */ + 0x88, /* Where the interrupt router lies (dev) */ + 0x1c20, /* IRQs devoted exclusively to PCI usage */ + 0x1106, /* Vendor */ + 0x8231, /* Device */ + 0, /* Crap (miniport) */ + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */ + 0x5e, /* u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */ + { + /* 8231 ethernet */ + {0,0x90, {{0x1, 0xdeb8}, {0x2, 0xdeb8}, {0x3, 0xdeb8}, {0x4, 0xdeb8}}, 0x1, 0}, + /* 8231 internal */ + {0,0x88, {{0x2, 0xdeb8}, {0x3, 0xdeb8}, {0x4, 0xdeb8}, {0x1, 0xdeb8}}, 0x2, 0}, + /* PCI slot */ + {0,0xa0, {{0x3, 0xdeb8}, {0x4, 0xdeb8}, {0x1, 0xdeb8}, {0x2, 0xdeb8}}, 0, 0}, + {0,0x50, {{0x4, 0xdeb8}, {0x3, 0xdeb8}, {0x2, 0xdeb8}, {0x1, 0xdeb8}}, 0x3, 0}, + {0,0x98, {{0x4, 0xdeb8}, {0x3, 0xdeb8}, {0x2, 0xdeb8}, {0x1, 0xdeb8}}, 0x4, 0}, + } +}; diff --git a/src/mainboard/emulation/qemu-i386/mainboard.c b/src/mainboard/emulation/qemu-i386/mainboard.c new file mode 100644 index 0000000000..270e5df9eb --- /dev/null +++ b/src/mainboard/emulation/qemu-i386/mainboard.c @@ -0,0 +1,49 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> + +#include <arch/io.h> +#include <device/chip.h> +#include "chip.h" + +void cpufixup(unsigned long mem) +{ + printk_spew("Welcome to LinuxBIOS CPU fixup. done.\n"); +} + +static int mainboard_scan_bus(device_t root, int maxbus) +{ + int retval; + printk_spew("%s: root %p maxbus %d\n", __FUNCTION__, root, maxbus); + retval = pci_scan_bus(root->bus, 0, 0xff, maxbus); + printk_spew("DONE %s: return %d\n", __FUNCTION__, maxbus); + return maxbus; +} + +static struct device_operations mainboard_operations = { + .read_resources = root_dev_read_resources, + .set_resources = root_dev_set_resources, + .enable_resources = enable_childrens_resources, + .init = 0, + .scan_bus = mainboard_scan_bus, + .enable = 0, +}; + +static void enumerate(struct chip *chip) +{ + struct chip *child; + dev_root.ops = &mainboard_operations; + chip->dev = &dev_root; + chip->bus = 0; + for(child = chip->children; child; child = child->next) { + child->bus = &dev_root.link[0]; + } +} + +struct chip_control mainboard_emulation_qemu_i386_control = { + .enumerate = enumerate, + .name = "qemu mainboard ", +}; + |