diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/via/epia-m/Config.lb | 20 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/Options.lb | 11 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/auto.c | 12 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/dsdt.asl | 256 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/dsdt.c | 142 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/fadt.c | 4 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/failover.c | 2 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/mainboard.c | 2 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/vgabios.c | 861 | ||||
| -rw-r--r-- | src/mainboard/via/epia-m/vgachip.h | 10 |
10 files changed, 1299 insertions, 21 deletions
diff --git a/src/mainboard/via/epia-m/Config.lb b/src/mainboard/via/epia-m/Config.lb index decbd0e3b1..6dc4b3d79a 100644 --- a/src/mainboard/via/epia-m/Config.lb +++ b/src/mainboard/via/epia-m/Config.lb @@ -45,6 +45,7 @@ arch i386 end driver mainboard.o if HAVE_PIRQ_TABLE object irq_tables.o end #object reset.o +object vgabios.o if HAVE_ACPI_TABLES object fadt.o @@ -133,11 +134,6 @@ config chip.h chip northbridge/via/vt8623 device pci_domain 0 on chip southbridge/via/vt8235 - register "enable_usb" = "0" - register "enable_native_ide" = "0" - register "enable_com_ports" = "1" - register "enable_keyboard" = "0" - register "enable_nvram" = "1" device pci 10.0 on end # USB 1.1 device pci 10.1 on end # USB 1.1 @@ -151,7 +147,7 @@ chip northbridge/via/vt8623 irq 0x70 = 6 drq 0x74 = 2 end - device pnp 2e.1 off # Parallel Port + device pnp 2e.1 on # Parallel Port io 0x60 = 0x378 irq 0x70 = 7 drq 0x74 = 3 @@ -178,10 +174,16 @@ chip northbridge/via/vt8623 device pci 12.0 on end # Ethernet end # This is on the EPIA MII, not the M. -# chip southbridge/ricoh/rl5c476 -# end + chip southbridge/ricoh/rl5c476 + register "enable_cf" = "1" + device pci 0a.0 on end + device pci 0a.1 on end + end end - chip cpu/via/model_centaur + device apic_cluster 0 on + chip cpu/via/model_centaur + device apic 0 on end + end end end diff --git a/src/mainboard/via/epia-m/Options.lb b/src/mainboard/via/epia-m/Options.lb index 4184236c5c..6c3193e78d 100644 --- a/src/mainboard/via/epia-m/Options.lb +++ b/src/mainboard/via/epia-m/Options.lb @@ -36,6 +36,8 @@ uses DEFAULT_CONSOLE_LOGLEVEL uses MAXIMUM_CONSOLE_LOGLEVEL uses CONFIG_CONSOLE_SERIAL8250 uses CONFIG_UDELAY_TSC +uses CONFIG_PCI_ROM_RUN +uses CONFIG_CONSOLE_VGA ## ROM_SIZE is the size of boot ROM that this board will use. default ROM_SIZE = 256*1024 @@ -43,6 +45,8 @@ default ROM_SIZE = 256*1024 ### ### Build options ### +default CONFIG_PCI_ROM_RUN=0 +default CONFIG_CONSOLE_VGA=0 ## ## Build code for the fallback boot @@ -70,6 +74,13 @@ default HAVE_HARD_RESET=1 default HAVE_PIRQ_TABLE=1 default IRQ_SLOT_COUNT=5 + +## +## Build code to load acpi tables +## +default HAVE_ACPI_TABLES=1 + + ## ## Build code to export a CMOS option table ## diff --git a/src/mainboard/via/epia-m/auto.c b/src/mainboard/via/epia-m/auto.c index 7d08de87bb..c69b7bf101 100644 --- a/src/mainboard/via/epia-m/auto.c +++ b/src/mainboard/via/epia-m/auto.c @@ -68,7 +68,7 @@ static void enable_mainboard_devices(void) die("Southbridge not found!!!\n"); } pci_write_config8(dev, 0x50, 0x80); - pci_write_config8(dev, 0x51, 0x1F); + pci_write_config8(dev, 0x51, 0x1f); #if 0 // This early setup switches IDE into compatibility mode before PCI gets // // a chance to assign I/Os @@ -141,14 +141,8 @@ static void main(unsigned long bist) print_debug(" Enabling shadow ram\r\n"); enable_shadow_ram(); - /* - memreset_setup(); - this is way more generic than we need. - sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu); - */ - sdram_set_registers((const struct mem_controller *) 0); - sdram_set_spd_registers((const struct mem_controller *) 0); - sdram_enable(0, (const struct mem_controller *) 0); + + ddr_ram_setup((const struct mem_controller *)0); /* Check all of memory */ #if 0 diff --git a/src/mainboard/via/epia-m/dsdt.asl b/src/mainboard/via/epia-m/dsdt.asl new file mode 100644 index 0000000000..2fcb77ed3a --- /dev/null +++ b/src/mainboard/via/epia-m/dsdt.asl @@ -0,0 +1,256 @@ +/* + * Minimalist ACPI DSDT table for EPIA-M / MII + * (C) Copyright 2004 Nick Barker <Nick.Barker9@btinternet.com> + * + * + */ + +DefinitionBlock ("DSDT.aml", "DSDT", 1, "LXBIOS", "LXB-DSDT", 1) +{ + /* + * Define the main processor + */ + Scope (\_PR) + { + Processor (\_PR.CPU0, 0x00, 0x00000410, 0x06) {} + } + + /* For now only define 2 power states: + * - S0 which is fully on + * - S5 which is soft off + * any others would involve declaring the wake up methods + */ + Name (\_S0, Package () {0x00, 0x00, 0x00, 0x00 }) + Name (\_S5, Package () {0x02, 0x02, 0x00, 0x00 }) + + /* Root of the bus hierarchy */ + Scope (\_SB) + { + /* Define how interrupt Link A is plumbed in */ + Device (LNKA) + { + Name (_HID, EisaId ("PNP0C0F")) + Name (_UID, 0x01) + /* Status - always return ready */ + Method (_STA, 0, NotSerialized) + { + Return (0x0B) + } + /* Current Resources - return irq set up in BIOS */ + Method (_CRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5} + }) + Return (BUFF) + } + /* Possible Resources - return the range of irqs + * we are using for PCI - only here to keep Linux ACPI + * happy + */ + Method (_PRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5,9,10} + }) + Return (BUFF) + } + /* Set Resources - dummy function to keep Linux ACPI happy + * Linux is more than happy not to tinker with irq + * assignments as long as the CRS and STA functions + * return good values + */ + Method (_SRS, 1, NotSerialized ) {} + /* Disable - dummy function to keep Linux ACPI happy */ + Method (_DIS, 0, NotSerialized ) {} + + } // End of LNKA + + /* Define how interrupt Link B is plumbed in */ + Device (LNKB) + { + Name (_HID, EisaId ("PNP0C0F")) + Name (_UID, 0x02) + /* Status - always return ready */ + Method (_STA, 0, NotSerialized) + { + Return (0x0B) + } + /* Current Resources - return irq set up in BIOS */ + Method (_CRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {9} + }) + Return (BUFF) + } + /* Possible Resources - return the range of irqs + * we are using for PCI - only here to keep Linux ACPI + * happy + */ + Method (_PRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5,9,10} + }) + Return (BUFF) + } + /* Set Resources - dummy function to keep Linux ACPI happy + * Linux is more than happy not to tinker with irq + * assignments as long as the CRS and STA functions + * return good values + */ + Method (_SRS, 1, NotSerialized ) {} + /* Disable - dummy function to keep Linux ACPI happy */ + Method (_DIS, 0, NotSerialized ) {} + + } // End of LNKB + + /* Define how interrupt Link C is plumbed in */ + Device (LNKC) + { + Name (_HID, EisaId ("PNP0C0F")) + Name (_UID, 0x03) + /* Status - always return ready */ + Method (_STA, 0, NotSerialized) + { + Return (0x0B) + } + /* Current Resources - return irq set up in BIOS */ + Method (_CRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {9} + }) + Return (BUFF) + } + /* Possible Resources - return the range of irqs + * we are using for PCI - only here to keep Linux ACPI + * happy + */ + Method (_PRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5,9,10} + }) + Return (BUFF) + } + /* Set Resources - dummy function to keep Linux ACPI happy + * Linux is more than happy not to tinker with irq + * assignments as long as the CRS and STA functions + * return good values + */ + Method (_SRS, 1, NotSerialized ) {} + /* Disable - dummy function to keep Linux ACPI happy */ + Method (_DIS, 0, NotSerialized ) {} + + } // End of LNKC + + /* Define how interrupt Link D is plumbed in */ + Device (LNKD) + { + Name (_HID, EisaId ("PNP0C0F")) + Name (_UID, 0x04) + /* Status - always return ready */ + Method (_STA, 0, NotSerialized) + { + Return (0x0B) + } + /* Current Resources - return irq set up in BIOS */ + Method (_CRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5} + }) + Return (BUFF) + } + /* Possible Resources - return the range of irqs + * we are using for PCI - only here to keep Linux ACPI + * happy + */ + Method (_PRS, 0, NotSerialized) + { + Name (BUFF, ResourceTemplate () + { + IRQ (Level, ActiveLow, Shared) {5,9,10} + }) + Return (BUFF) + } + /* Set Resources - dummy function to keep Linux ACPI happy + * Linux is more than happy not to tinker with irq + * assignments as long as the CRS and STA functions + * return good values + */ + Method (_SRS, 1, NotSerialized ) {} + /* Disable - dummy function to keep Linux ACPI happy */ + Method (_DIS, 0, NotSerialized ) {} + + } // End of LNKD + + + /* top PCI device */ + Device (PCI0) + { + Name (_HID, EisaId ("PNP0A03")) + Name (_ADR, 0x00) + Name (_UID, 0x00) + Name (_BBN, 0x00) + + /* PCI Routing Table */ + Name (_PRT, Package () { + Package () {0x000AFFFF, 0x00, LNKD, 0x00}, // Cardbus Link D + Package () {0x000AFFFF, 0x01, LNKA, 0x00}, // Cardbus Link A + Package () {0x000AFFFF, 0x02, LNKB, 0x00}, // Cardbus Link B + Package () {0x000AFFFF, 0x03, LNKC, 0x00}, // Cardbus Link C + + Package () {0x000DFFFF, 0x00, LNKB, 0x00}, // Firewire Link B + Package () {0x000DFFFF, 0x01, LNKC, 0x00}, // Firewire Link C + Package () {0x000DFFFF, 0x02, LNKD, 0x00}, // Firewire Linc D + Package () {0x000DFFFF, 0x03, LNKA, 0x00}, // Firewire Link A + + Package () {0x0010FFFF, 0x00, LNKA, 0x00}, // USB Link A + Package () {0x0010FFFF, 0x01, LNKB, 0x00}, // USB Link B + Package () {0x0010FFFF, 0x02, LNKC, 0x00}, // USB Link C + Package () {0x0010FFFF, 0x03, LNKD, 0x00}, // USB Link D + + Package () {0x0011FFFF, 0x00, LNKA, 0x00}, // vt8623 Link A + Package () {0x0011FFFF, 0x01, LNKB, 0x00}, // vt8623 Link B + Package () {0x0011FFFF, 0x02, LNKC, 0x00}, // vt8623 Link C + Package () {0x0011FFFF, 0x03, LNKD, 0x00}, // vt8623 Link D + + Package () {0x0012FFFF, 0x00, LNKA, 0x00}, // LAN Link A + Package () {0x0012FFFF, 0x01, LNKB, 0x00}, // LAN Link B + Package () {0x0012FFFF, 0x02, LNKC, 0x00}, // LAN Link C + Package () {0x0012FFFF, 0x03, LNKD, 0x00}, // LAN Link D + + Package () {0x0013FFFF, 0x00, LNKA, 0x00}, // Riser slot LinkA + Package () {0x0013FFFF, 0x01, LNKB, 0x00}, // Riser slot LinkB + Package () {0x0013FFFF, 0x02, LNKC, 0x00}, // Riser slot LinkC + Package () {0x0013FFFF, 0x03, LNKD, 0x00}, // Riser slot LinkD + + Package () {0x0014FFFF, 0x00, LNKB, 0x00}, // Slot 1, Link B + Package () {0x0014FFFF, 0x01, LNKC, 0x00}, // Slot 1, Link C + Package () {0x0014FFFF, 0x02, LNKD, 0x00}, // Slot 1, Link D + Package () {0x0014FFFF, 0x03, LNKA, 0x00}, // Slot 1, Link A + + Package () {0x0001FFFF, 0x00, LNKA, 0x00}, // VGA Link A + Package () {0x0001FFFF, 0x01, LNKB, 0x00}, // VGA Link B + Package () {0x0001FFFF, 0x02, LNKC, 0x00}, // VGA Link C + Package () {0x0001FFFF, 0x03, LNKD, 0x00} // VGA Link D + + }) + + + } // End of PCI0 + + } // End of _SB + +} // End of Definition Block + diff --git a/src/mainboard/via/epia-m/dsdt.c b/src/mainboard/via/epia-m/dsdt.c new file mode 100644 index 0000000000..62b0f3dab0 --- /dev/null +++ b/src/mainboard/via/epia-m/dsdt.c @@ -0,0 +1,142 @@ +/* + * + * Intel ACPI Component Architecture + * ASL Optimizing Compiler / AML Disassembler version 20040715 [Aug 16 2004] + * Copyright (C) 2000 - 2004 Intel Corporation + * Supports ACPI Specification Revision 2.0c + * + * Compilation of "dsdt.asl" - Thu Oct 27 09:25:57 2005 + * + * C source code output + * + */ +unsigned char AmlCode[] = +{ + 0x44,0x53,0x44,0x54,0xF0,0x03,0x00,0x00, /* 00000000 "DSDT...." */ + 0x01,0x11,0x4C,0x58,0x42,0x49,0x4F,0x53, /* 00000008 "..LXBIOS" */ + 0x4C,0x58,0x42,0x2D,0x44,0x53,0x44,0x54, /* 00000010 "LXB-DSDT" */ + 0x01,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C, /* 00000018 "....INTL" */ + 0x15,0x07,0x04,0x20,0x10,0x12,0x5F,0x50, /* 00000020 "... .._P" */ + 0x52,0x5F,0x5B,0x83,0x0B,0x43,0x50,0x55, /* 00000028 "R_[..CPU" */ + 0x30,0x00,0x10,0x04,0x00,0x00,0x06,0x08, /* 00000030 "0......." */ + 0x5F,0x53,0x30,0x5F,0x12,0x06,0x04,0x00, /* 00000038 "_S0_...." */ + 0x00,0x00,0x00,0x08,0x5F,0x53,0x35,0x5F, /* 00000040 "...._S5_" */ + 0x12,0x08,0x04,0x0A,0x02,0x0A,0x02,0x00, /* 00000048 "........" */ + 0x00,0x10,0x4E,0x39,0x5F,0x53,0x42,0x5F, /* 00000050 "..N9_SB_" */ + 0x5B,0x82,0x44,0x06,0x4C,0x4E,0x4B,0x41, /* 00000058 "[.D.LNKA" */ + 0x08,0x5F,0x48,0x49,0x44,0x0C,0x41,0xD0, /* 00000060 "._HID.A." */ + 0x0C,0x0F,0x08,0x5F,0x55,0x49,0x44,0x01, /* 00000068 "..._UID." */ + 0x14,0x09,0x5F,0x53,0x54,0x41,0x00,0xA4, /* 00000070 ".._STA.." */ + 0x0A,0x0B,0x14,0x1A,0x5F,0x43,0x52,0x53, /* 00000078 "...._CRS" */ + 0x00,0x08,0x42,0x55,0x46,0x46,0x11,0x09, /* 00000080 "..BUFF.." */ + 0x0A,0x06,0x23,0x20,0x00,0x18,0x79,0x00, /* 00000088 "..# ..y." */ + 0xA4,0x42,0x55,0x46,0x46,0x14,0x1A,0x5F, /* 00000090 ".BUFF.._" */ + 0x50,0x52,0x53,0x00,0x08,0x42,0x55,0x46, /* 00000098 "PRS..BUF" */ + 0x46,0x11,0x09,0x0A,0x06,0x23,0x20,0x06, /* 000000A0 "F....# ." */ + 0x18,0x79,0x00,0xA4,0x42,0x55,0x46,0x46, /* 000000A8 ".y..BUFF" */ + 0x14,0x06,0x5F,0x53,0x52,0x53,0x01,0x14, /* 000000B0 ".._SRS.." */ + 0x06,0x5F,0x44,0x49,0x53,0x00,0x5B,0x82, /* 000000B8 "._DIS.[." */ + 0x45,0x06,0x4C,0x4E,0x4B,0x42,0x08,0x5F, /* 000000C0 "E.LNKB._" */ + 0x48,0x49,0x44,0x0C,0x41,0xD0,0x0C,0x0F, /* 000000C8 "HID.A..." */ + 0x08,0x5F,0x55,0x49,0x44,0x0A,0x02,0x14, /* 000000D0 "._UID..." */ + 0x09,0x5F,0x53,0x54,0x41,0x00,0xA4,0x0A, /* 000000D8 "._STA..." */ + 0x0B,0x14,0x1A,0x5F,0x43,0x52,0x53,0x00, /* 000000E0 "..._CRS." */ + 0x08,0x42,0x55,0x46,0x46,0x11,0x09,0x0A, /* 000000E8 ".BUFF..." */ + 0x06,0x23,0x00,0x02,0x18,0x79,0x00,0xA4, /* 000000F0 ".#...y.." */ + 0x42,0x55,0x46,0x46,0x14,0x1A,0x5F,0x50, /* 000000F8 "BUFF.._P" */ + 0x52,0x53,0x00,0x08,0x42,0x55,0x46,0x46, /* 00000100 "RS..BUFF" */ + 0x11,0x09,0x0A,0x06,0x23,0x20,0x06,0x18, /* 00000108 "....# .." */ + 0x79,0x00,0xA4,0x42,0x55,0x46,0x46,0x14, /* 00000110 "y..BUFF." */ + 0x06,0x5F,0x53,0x52,0x53,0x01,0x14,0x06, /* 00000118 "._SRS..." */ + 0x5F,0x44,0x49,0x53,0x00,0x5B,0x82,0x45, /* 00000120 "_DIS.[.E" */ + 0x06,0x4C,0x4E,0x4B,0x43,0x08,0x5F,0x48, /* 00000128 ".LNKC._H" */ + 0x49,0x44,0x0C,0x41,0xD0,0x0C,0x0F,0x08, /* 00000130 "ID.A...." */ + 0x5F,0x55,0x49,0x44,0x0A,0x03,0x14,0x09, /* 00000138 "_UID...." */ + 0x5F,0x53,0x54,0x41,0x00,0xA4,0x0A,0x0B, /* 00000140 "_STA...." */ + 0x14,0x1A,0x5F,0x43,0x52,0x53,0x00,0x08, /* 00000148 ".._CRS.." */ + 0x42,0x55,0x46,0x46,0x11,0x09,0x0A,0x06, /* 00000150 "BUFF...." */ + 0x23,0x00,0x02,0x18,0x79,0x00,0xA4,0x42, /* 00000158 "#...y..B" */ + 0x55,0x46,0x46,0x14,0x1A,0x5F,0x50,0x52, /* 00000160 "UFF.._PR" */ + 0x53,0x00,0x08,0x42,0x55,0x46,0x46,0x11, /* 00000168 "S..BUFF." */ + 0x09,0x0A,0x06,0x23,0x20,0x06,0x18,0x79, /* 00000170 "...# ..y" */ + 0x00,0xA4,0x42,0x55,0x46,0x46,0x14,0x06, /* 00000178 "..BUFF.." */ + 0x5F,0x53,0x52,0x53,0x01,0x14,0x06,0x5F, /* 00000180 "_SRS..._" */ + 0x44,0x49,0x53,0x00,0x5B,0x82,0x45,0x06, /* 00000188 "DIS.[.E." */ + 0x4C,0x4E,0x4B,0x44,0x08,0x5F,0x48,0x49, /* 00000190 "LNKD._HI" */ + 0x44,0x0C,0x41,0xD0,0x0C,0x0F,0x08,0x5F, /* 00000198 "D.A...._" */ + 0x55,0x49,0x44,0x0A,0x04,0x14,0x09,0x5F, /* 000001A0 "UID...._" */ + 0x53,0x54,0x41,0x00,0xA4,0x0A,0x0B,0x14, /* 000001A8 "STA....." */ + 0x1A,0x5F,0x43,0x52,0x53,0x00,0x08,0x42, /* 000001B0 "._CRS..B" */ + 0x55,0x46,0x46,0x11,0x09,0x0A,0x06,0x23, /* 000001B8 "UFF....#" */ + 0x20,0x00,0x18,0x79,0x00,0xA4,0x42,0x55, /* 000001C0 " ..y..BU" */ + 0x46,0x46,0x14,0x1A,0x5F,0x50,0x52,0x53, /* 000001C8 "FF.._PRS" */ + 0x00,0x08,0x42,0x55,0x46,0x46,0x11,0x09, /* 000001D0 "..BUFF.." */ + 0x0A,0x06,0x23,0x20,0x06,0x18,0x79,0x00, /* 000001D8 "..# ..y." */ + 0xA4,0x42,0x55,0x46,0x46,0x14,0x06,0x5F, /* 000001E0 ".BUFF.._" */ + 0x53,0x52,0x53,0x01,0x14,0x06,0x5F,0x44, /* 000001E8 "SRS..._D" */ + 0x49,0x53,0x00,0x5B,0x82,0x4B,0x1F,0x50, /* 000001F0 "IS.[.K.P" */ + 0x43,0x49,0x30,0x08,0x5F,0x48,0x49,0x44, /* 000001F8 "CI0._HID" */ + 0x0C,0x41,0xD0,0x0A,0x03,0x08,0x5F,0x41, /* 00000200 ".A...._A" */ + 0x44,0x52,0x00,0x08,0x5F,0x55,0x49,0x44, /* 00000208 "DR.._UID" */ + 0x00,0x08,0x5F,0x42,0x42,0x4E,0x00,0x08, /* 00000210 ".._BBN.." */ + 0x5F,0x50,0x52,0x54,0x12,0x43,0x1D,0x20, /* 00000218 "_PRT.C. " */ + 0x12,0x0D,0x04,0x0C,0xFF,0xFF,0x0A,0x00, /* 00000220 "........" */ + 0x00,0x4C,0x4E,0x4B,0x44,0x00,0x12,0x0D, /* 00000228 ".LNKD..." */ + 0x04,0x0C,0xFF,0xFF,0x0A,0x00,0x01,0x4C, /* 00000230 ".......L" */ + 0x4E,0x4B,0x41,0x00,0x12,0x0E,0x04,0x0C, /* 00000238 "NKA....." */ + 0xFF,0xFF,0x0A,0x00,0x0A,0x02,0x4C,0x4E, /* 00000240 "......LN" */ + 0x4B,0x42,0x00,0x12,0x0E,0x04,0x0C,0xFF, /* 00000248 "KB......" */ + 0xFF,0x0A,0x00,0x0A,0x03,0x4C,0x4E,0x4B, /* 00000250 ".....LNK" */ + 0x43,0x00,0x12,0x0D,0x04,0x0C,0xFF,0xFF, /* 00000258 "C......." */ + 0x0D,0x00,0x00,0x4C,0x4E,0x4B,0x42,0x00, /* 00000260 "...LNKB." */ + 0x12,0x0D,0x04,0x0C,0xFF,0xFF,0x0D,0x00, /* 00000268 "........" */ + 0x01,0x4C,0x4E,0x4B,0x43,0x00,0x12,0x0E, /* 00000270 ".LNKC..." */ + 0x04,0x0C,0xFF,0xFF,0x0D,0x00,0x0A,0x02, /* 00000278 "........" */ + 0x4C,0x4E,0x4B,0x44,0x00,0x12,0x0E,0x04, /* 00000280 "LNKD...." */ + 0x0C,0xFF,0xFF,0x0D,0x00,0x0A,0x03,0x4C, /* 00000288 ".......L" */ + 0x4E,0x4B,0x41,0x00,0x12,0x0D,0x04,0x0C, /* 00000290 "NKA....." */ + 0xFF,0xFF,0x10,0x00,0x00,0x4C,0x4E,0x4B, /* 00000298 ".....LNK" */ + 0x41,0x00,0x12,0x0D,0x04,0x0C,0xFF,0xFF, /* 000002A0 "A......." */ + 0x10,0x00,0x01,0x4C,0x4E,0x4B,0x42,0x00, /* 000002A8 "...LNKB." */ + 0x12,0x0E,0x04,0x0C,0xFF,0xFF,0x10,0x00, /* 000002B0 "........" */ + 0x0A,0x02,0x4C,0x4E,0x4B,0x43,0x00,0x12, /* 000002B8 "..LNKC.." */ + 0x0E,0x04,0x0C,0xFF,0xFF,0x10,0x00,0x0A, /* 000002C0 "........" */ + 0x03,0x4C,0x4E,0x4B,0x44,0x00,0x12,0x0D, /* 000002C8 ".LNKD..." */ + 0x04,0x0C,0xFF,0xFF,0x11,0x00,0x00,0x4C, /* 000002D0 ".......L" */ + 0x4E,0x4B,0x41,0x00,0x12,0x0D,0x04,0x0C, /* 000002D8 "NKA....." */ + 0xFF,0xFF,0x11,0x00,0x01,0x4C,0x4E,0x4B, /* 000002E0 ".....LNK" */ + 0x42,0x00,0x12,0x0E,0x04,0x0C,0xFF,0xFF, /* 000002E8 "B......." */ + 0x11,0x00,0x0A,0x02,0x4C,0x4E,0x4B,0x43, /* 000002F0 "....LNKC" */ + 0x00,0x12,0x0E,0x04,0x0C,0xFF,0xFF,0x11, /* 000002F8 "........" */ + 0x00,0x0A,0x03,0x4C,0x4E,0x4B,0x44,0x00, /* 00000300 "...LNKD." */ + 0x12,0x0D,0x04,0x0C,0xFF,0xFF,0x12,0x00, /* 00000308 "........" */ + 0x00,0x4C,0x4E,0x4B,0x41,0x00,0x12,0x0D, /* 00000310 ".LNKA..." */ + 0x04,0x0C,0xFF,0xFF,0x12,0x00,0x01,0x4C, /* 00000318 ".......L" */ + 0x4E,0x4B,0x42,0x00,0x12,0x0E,0x04,0x0C, /* 00000320 "NKB....." */ + 0xFF,0xFF,0x12,0x00,0x0A,0x02,0x4C,0x4E, /* 00000328 "......LN" */ + 0x4B,0x43,0x00,0x12,0x0E,0x04,0x0C,0xFF, /* 00000330 "KC......" */ + 0xFF,0x12,0x00,0x0A,0x03,0x4C,0x4E,0x4B, /* 00000338 ".....LNK" */ + 0x44,0x00,0x12,0x0D,0x04,0x0C,0xFF,0xFF, /* 00000340 "D......." */ + 0x13,0x00,0x00,0x4C,0x4E,0x4B,0x41,0x00, /* 00000348 "...LNKA." */ + 0x12,0x0D,0x04,0x0C,0xFF,0xFF,0x13,0x00, /* 00000350 "........" */ + 0x01,0x4C,0x4E,0x4B,0x42,0x00,0x12,0x0E, /* 00000358 ".LNKB..." */ + 0x04,0x0C,0xFF,0xFF,0x13,0x00,0x0A,0x02, /* 00000360 "........" */ + 0x4C,0x4E,0x4B,0x43,0x00,0x12,0x0E,0x04, /* 00000368 "LNKC...." */ + 0x0C,0xFF,0xFF,0x13,0x00,0x0A,0x03,0x4C, /* 00000370 ".......L" */ + 0x4E,0x4B,0x44,0x00,0x12,0x0D,0x04,0x0C, /* 00000378 "NKD....." */ + 0xFF,0xFF,0x14,0x00,0x00,0x4C,0x4E,0x4B, /* 00000380 ".....LNK" */ + 0x42,0x00,0x12,0x0D,0x04,0x0C,0xFF,0xFF, /* 00000388 "B......." */ + 0x14,0x00,0x01,0x4C,0x4E,0x4B,0x43,0x00, /* 00000390 "...LNKC." */ + 0x12,0x0E,0x04,0x0C,0xFF,0xFF,0x14,0x00, /* 00000398 "........" */ + 0x0A,0x02,0x4C,0x4E,0x4B,0x44,0x00,0x12, /* 000003A0 "..LNKD.." */ + 0x0E,0x04,0x0C,0xFF,0xFF,0x14,0x00,0x0A, /* 000003A8 "........" */ + 0x03,0x4C,0x4E,0x4B,0x41,0x00,0x12,0x0D, /* 000003B0 ".LNKA..." */ + 0x04,0x0C,0xFF,0xFF,0x01,0x00,0x00,0x4C, /* 000003B8 ".......L" */ + 0x4E,0x4B,0x41,0x00,0x12,0x0D,0x04,0x0C, /* 000003C0 "NKA....." */ + 0xFF,0xFF,0x01,0x00,0x01,0x4C,0x4E,0x4B, /* 000003C8 ".....LNK" */ + 0x42,0x00,0x12,0x0E,0x04,0x0C,0xFF,0xFF, /* 000003D0 "B......." */ + 0x01,0x00,0x0A,0x02,0x4C,0x4E,0x4B,0x43, /* 000003D8 "....LNKC" */ + 0x00,0x12,0x0E,0x04,0x0C,0xFF,0xFF,0x01, /* 000003E0 "........" */ + 0x00,0x0A,0x03,0x4C,0x4E,0x4B,0x44,0x00, /* 000003E8 "...LNKD." */ + +}; diff --git a/src/mainboard/via/epia-m/fadt.c b/src/mainboard/via/epia-m/fadt.c index 3d9873e7b6..702d556988 100644 --- a/src/mainboard/via/epia-m/fadt.c +++ b/src/mainboard/via/epia-m/fadt.c @@ -15,8 +15,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, - * MA 02110-1301 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA */ diff --git a/src/mainboard/via/epia-m/failover.c b/src/mainboard/via/epia-m/failover.c index bdcb9eaed2..35317fc7b2 100644 --- a/src/mainboard/via/epia-m/failover.c +++ b/src/mainboard/via/epia-m/failover.c @@ -8,6 +8,7 @@ static unsigned long main(unsigned long bist) { +#if 0 /* This is the primary cpu how should I boot? */ if (do_normal_boot()) { goto normal_image; @@ -28,5 +29,6 @@ static unsigned long main(unsigned long bist) : /* clobbers */ ); fallback_image: +#endif return bist; } diff --git a/src/mainboard/via/epia-m/mainboard.c b/src/mainboard/via/epia-m/mainboard.c index 9eb7b3705b..26e5916f01 100644 --- a/src/mainboard/via/epia-m/mainboard.c +++ b/src/mainboard/via/epia-m/mainboard.c @@ -25,7 +25,7 @@ static void vga_fixup(void) { } -static void write_protect_vgabios(void) +void write_protect_vgabios(void) { device_t dev; diff --git a/src/mainboard/via/epia-m/vgabios.c b/src/mainboard/via/epia-m/vgabios.c new file mode 100644 index 0000000000..67620eaa2e --- /dev/null +++ b/src/mainboard/via/epia-m/vgabios.c @@ -0,0 +1,861 @@ +#include <console/console.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#undef __KERNEL__ +#include <arch/io.h> +//#include <printk.h> +#include <string.h> +#include "vgachip.h" + +/* vgabios.c. Derived from: */ + +/*------------------------------------------------------------ -*- C -*- + * 2 Kernel Monte a.k.a. Linux loading Linux on x86 + * + * Erik Arjan Hendriks <hendriks@lanl.gov> + * + * This version is a derivative of the original two kernel monte + * which is (C) 2000 Scyld. + * + * Copyright (C) 2000 Scyld Computing Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Portions related to the alpha architecture are: + * + * Copyright(C) 2001 University of California. LA-CC Number 01-67. + * This software has been authored by an employee or employees of the + * University of California, operator of the Los Alamos National + * Laboratory under Contract No. W-7405-ENG-36 with the U.S. + * Department of Energy. The U.S. Government has rights to use, + * reproduce, and distribute this software. If the software is + * modified to produce derivative works, such modified software should + * be clearly marked, so as not to confuse it with the version + * available from LANL. + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by + * reference to http://www.gnu.org/licenses/gpl.html. + * + * This software is provided by the author(s) "as is" and any express + * or implied warranties, including, but not limited to, the implied + * warranties of merchantability and fitness for a particular purpose + * are disclaimed. In no event shall the author(s) be liable for any + * direct, indirect, incidental, special, exemplary, or consequential + * damages (including, but not limited to, procurement of substitute + * goods or services; loss of use, data, or profits; or business + * interruption) however caused and on any theory of liability, + * whether in contract, strict liability, or tort (including + * negligence or otherwise) arising in any way out of the use of this + * software, even if advised of the possibility of such damage. + * + * $Id: vgabios.c,v 1.5 2004/10/06 17:33:52 rminnich Exp $ + *--------------------------------------------------------------------*/ + +/* Modified to be a self sufficient plug in so that it can be used + without reliance on other parts of core Linuxbios + (C) 2005 Nick.Barker9@btinternet.com + + Used initially for epia-m where there are problems getting the bios + emulator to successfully run this bios. +*/ + +/* Declare a temporary global descriptor table - necessary because the + Core part of the bios no longer sets up any 16 bit segments */ +__asm__ ( + /* pointer to original gdt */ + "gdtarg: \n\t" + ".word gdt_limit \n\t" + ".long gdt \n\t" + + /* compute the table limit */ + "__mygdt_limit = __mygdt_end - __mygdt - 1 \n\t" + + "__mygdtaddr: \n\t" + ".word __mygdt_limit \n\t" + ".long __mygdt \n\t" + + + "__mygdt: \n\t" + /* selgdt 0, unused */ + ".word 0x0000, 0x0000 \n\t" + ".byte 0x00, 0x00, 0x00, 0x00 \n\t" + + /* selgdt 8, unused */ + ".word 0x0000, 0x0000 \n\t" + ".byte 0x00, 0x00, 0x00, 0x00 \n\t" + + /* selgdt 0x10, flat code segment */ + ".word 0xffff, 0x0000 \n\t" + ".byte 0x00, 0x9b, 0xcf, 0x00 \n\t" + + /* selgdt 0x18, flat data segment */ + ".word 0xffff, 0x0000 \n\t" + ".byte 0x00, 0x93, 0xcf, 0x00 \n\t" + + /* selgdt 0x20, unused */ + ".word 0x0000, 0x0000 \n\t" + ".byte 0x00, 0x00, 0x00, 0x00 \n\t" + + /*selgdt 0x28 16-bit 64k code at 0x00000000 */ + ".word 0xffff, 0x0000 \n\t" + ".byte 0, 0x9a, 0, 0 \n\t" + + /* selgdt 0x30 16-bit 64k data at 0x00000000 */ + ".word 0xffff, 0x0000 \n\t" + ".byte 0, 0x92, 0, 0 \n\t" + + "__mygdt_end: \n\t" +); + +/* Declare a pointer to where our idt is going to be i.e. at mem zero */ +__asm__ ( + "__myidt: \n" + " .word 1023 \n" + " .long 0 \n" + " .word 0 \n" +); + +/* The address arguments to this function are PHYSICAL ADDRESSES */ +static void real_mode_switch_call_vga(unsigned long devfn) +{ + __asm__ __volatile__ ( + // paranoia -- does ecx get saved? not sure. This is + // the easiest safe thing to do. + " pushal\n" + /* save the stack */ + " mov %esp, __stack\n" + " jmp 1f\n" + "__stack: .long 0\n" + "1:\n" + /* get devfn into %ecx */ + " movl %esp, %ebp\n" + " movl 8(%ebp), %ecx\n" + /* load 'our' gdt */ + " lgdt %cs:__mygdtaddr \n\t" + + /* This configures CS properly for real mode. */ + " ljmp $0x28, $__rms_16bit\n" + "__rms_16bit: \n" + ".code16 \n" + /* 16 bit code from here on... */ + + /* Load the segment registers w/ properly configured segment + * descriptors. They will retain these configurations (limits, + * writability, etc.) once protected mode is turned off. */ + " mov $0x30, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + + /* Turn off protection (bit 0 in CR0) */ + " movl %cr0, %eax \n" + " andl $0xFFFFFFFE, %eax \n" + " movl %eax, %cr0 \n" + + /* Now really going into real mode */ + " ljmp $0, $__rms_real \n" + "__rms_real: \n" + + // put the stack at the end of page zero. + // that way we can easily share it between real and protected, + // since the 16-bit ESP at segment 0 will work for any case. + /* Setup a stack */ + " mov $0x0, %ax \n" + " mov %ax, %ss \n" + " movl $0x1000, %eax \n" + " movl %eax, %esp \n" + + /* Load our 16 it idt */ + " xor %ax, %ax \n" + " mov %ax, %ds \n" + " lidt __myidt \n" + + + /* Dump zeros in the other segregs */ + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov $0x40, %ax \n" + " mov %ax, %ds \n" + " mov %cx, %ax \n" + /* go run the code */ + " .byte 0x9a, 0x03, 0, 0, 0xc0 \n" + + /* if we got here, just about done. + * Need to get back to protected mode */ + "movl %cr0, %eax\n" + "orl $0x0000001, %eax\n" /* PE = 1 */ + "movl %eax, %cr0\n" + + /* Now that we are in protected mode jump to a 32 bit code segment. */ + "data32 ljmp $0x10, $vgarestart\n" + "vgarestart:\n" + ".code32\n" + " movw $0x18, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + + /* restore proper gdt and idt */ + " lgdt %cs:gdtarg \n" + " lidt idtarg \n" + ".globl vga_exit\n" + "vga_exit:\n" + " mov __stack, %esp\n" + " popal\n" + ); +} + +__asm__ (".text\n""real_mode_switch_end:\n"); +extern char real_mode_switch_end[]; + +/* call vga bios int 10 function 0x4f14 to enable main console + epia-m does not always autosence the main console so forcing it on is good !! */ + +void vga_enable_console() +{ + __asm__ __volatile__ ( + // paranoia -- does ecx get saved? not sure. This is + // the easiest safe thing to do. + " pushal\n" + /* save the stack */ + " mov %esp, __stack\n" + + /* load 'our' gdt */ + " lgdt %cs:__mygdtaddr \n\t" + + /* This configures CS properly for real mode. */ + " ljmp $0x28, $__vga_ec_16bit\n" + "__vga_ec_16bit: \n" + ".code16 \n" + /* 16 bit code from here on... */ + + /* Load the segment registers w/ properly configured segment + * descriptors. They will retain these configurations (limits, + * writability, etc.) once protected mode is turned off. */ + " mov $0x30, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + + /* Turn off protection (bit 0 in CR0) */ + " movl %cr0, %eax \n" + " andl $0xFFFFFFFE, %eax \n" + " movl %eax, %cr0 \n" + + /* Now really going into real mode */ + " ljmp $0, $__vga_ec_real \n" + "__vga_ec_real: \n" + + // put the stack at the end of page zero. + // that way we can easily share it between real and protected, + // since the 16-bit ESP at segment 0 will work for any case. + /* Setup a stack */ + " mov $0x0, %ax \n" + " mov %ax, %ss \n" + " movl $0x1000, %eax \n" + " movl %eax, %esp \n" + /* debugging for RGM */ + " mov $0x11, %al \n" + " outb %al, $0x80\n" + + /* Load our 16 it idt */ + " xor %ax, %ax \n" + " mov %ax, %ds \n" + " lidt __myidt \n" + + /* Dump zeros in the other segregs */ + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + + /* ask bios to enable main console */ + /* set up for int 10 call - values found from X server bios call routines */ + " movw $0x4f14,%ax \n" + " movw $0x8003,%bx \n" + " movw $1, %cx \n" + " movw $0, %dx \n" + " movw $0, %di \n" + " .byte 0xcd, 0x10 \n" + " movb $0x55, %al\noutb %al, $0x80\n" + + /* if we got here, just about done. + * Need to get back to protected mode */ + "movl %cr0, %eax\n" + "orl $0x0000001, %eax\n" /* PE = 1 */ + "movl %eax, %cr0\n" + + /* Now that we are in protected mode jump to a 32 bit code segment. */ + "data32 ljmp $0x10, $vga_ec_restart\n" + "vga_ec_restart:\n" + ".code32\n" + " movw $0x18, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + + + /* restore proper gdt and idt */ + " lgdt %cs:gdtarg \n" + " lidt idtarg \n" + ".globl vga__ec_exit\n" + "vga_ec_exit:\n" + " mov __stack, %esp\n" + " popal\n" + ); +} + + +void +do_vgabios(void) +{ + device_t dev; + unsigned long busdevfn; + unsigned int rom = 0; + unsigned char *buf; + unsigned int size = 64*1024; + int i; + + /* clear vga bios data area */ + for (i=0x400; i<0x500; i++) { + *(unsigned char *) i = 0; + } + + dev = dev_find_class(PCI_CLASS_DISPLAY_VGA<<8 , 0); + + if (! dev) { + printk_debug("NO VGA FOUND\n"); + return; + } + printk_debug("found VGA: vid=%x, did=%x\n", dev->vendor, dev->device); + + /* declare rom address here - keep any config data out of the way of core LXB stuff */ + + rom = 0xfffc0000; + pci_write_config32(dev, PCI_ROM_ADDRESS, rom|1); + printk_debug("rom base, size: %x\n", rom); + + buf = (unsigned char *) rom; + if ((buf[0] == 0x55) && (buf[1] == 0xaa)) { + memcpy((void *) 0xc0000, buf, size); + + write_protect_vgabios(); // in northbridge + + // check signature again + buf = (unsigned char *) 0xc0000; + if (buf[0]==0x55 && buf[1]==0xAA) { + busdevfn = (dev->bus->secondary << 8) | dev->path.u.pci.devfn; + printk_debug("bus/devfn = %#x\n", busdevfn); + + real_mode_switch_call_vga(busdevfn); + } else + printk_debug("Failed to copy VGA BIOS to 0xc0000\n"); + + } else + printk_debug("BAD SIGNATURE 0x%x 0x%x\n", buf[0], buf[1]); + + pci_write_config32(dev, PCI_ROM_ADDRESS, 0); + +} + + +// we had hoped to avoid this. +// this is a stub IDT only. It's main purpose is to ignore calls +// to the BIOS. +// no longer. Dammit. We have to respond to these. +struct realidt { + unsigned short offset, cs; +}; + +// from a handy writeup that andrey found. + +// handler. +// There are some assumptions we can make here. +// First, the Top Of Stack (TOS) is located on the top of page zero. +// we can share this stack between real and protected mode. +// that simplifies a lot of things ... +// we'll just push all the registers on the stack as longwords, +// and pop to protected mode. +// second, since this only ever runs as part of linuxbios, +// we know all the segment register values -- so we don't save any. +// keep the handler that calls things small. It can do a call to +// more complex code in linuxbios itself. This helps a lot as we don't +// have to do address fixup in this little stub, and calls are absolute +// so the handler is relocatable. +void handler(void) { + __asm__ __volatile__ ( + ".code16\n" + "idthandle:\n" + " pushal\n" + " movb $0, %al\n" + " ljmp $0, $callbiosint16\n" + "end_idthandle:\n" + ".code32\n" + ); + +} + +void debughandler(void) { + __asm__ __volatile__ ( + ".code16\n" + "debughandle:\n" + " pushw %cx \n" + " movw $250, %cx \n" + "dbh1: \n" + " loop dbh1 \n" + " popw %cx \n" + " iret \n" + "end_debughandle:\n" + ".code32\n" + ); + +} + +// Calling conventions. The first C function is called with this stuff +// on the stack. They look like value parameters, but note that if you +// modify them they will go back to the INTx function modified. +// the C function will call the biosint function with these as +// REFERENCE parameters. In this way, we can easily get +// returns back to the INTx caller (i.e. vgabios) +void callbiosint(void) { + __asm__ __volatile__ ( + ".code16\n" + "callbiosint16:\n" + " push %ds \n" + " push %es \n" + " push %fs \n" + " push %gs \n" + // clean up the int #. To save space we put it in the lower + // byte. But the top 24 bits are junk. + "andl $0xff, %eax\n" + // this push does two things: + // - put the INT # on the stack as a parameter + // - provides us with a temp for the %cr0 mods. + "pushl %eax\n" + "movl %cr0, %eax\n" + //"andl $0x7FFAFFD1, %eax\n" /* PG,AM,WP,NE,TS,EM,MP = 0 */ + //"orl $0x60000001, %eax\n" /* CD, NW, PE = 1 */ + "orl $0x00000001, %eax\n" /* PE = 1 */ + "movl %eax, %cr0\n" + /* Now that we are in protected mode jump to a 32 bit code segment. */ + "data32 ljmp $0x10, $biosprotect\n" + "biosprotect:\n" + ".code32\n" + " movw $0x18, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + " lidt idtarg \n" + " call biosint \n" + // back to real mode ... + " ljmp $0x28, $__rms_16bit2\n" + "__rms_16bit2: \n" + ".code16 \n" /* 16 bit code from here on... */ + + /* Load the segment registers w/ properly configured segment + * descriptors. They will retain these configurations (limits, + * writability, etc.) once protected mode is turned off. */ + " mov $0x30, %ax \n" + " mov %ax, %ds \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov %ax, %ss \n" + + /* Turn off protection (bit 0 in CR0) */ + " movl %cr0, %eax \n" + " andl $0xFFFFFFFE, %eax \n" + " movl %eax, %cr0 \n" + + /* Now really going into real mode */ + " ljmp $0, $__rms_real2 \n" + "__rms_real2: \n" + + /* Setup a stack */ + " mov $0x0, %ax \n" + " mov %ax, %ss \n" + /* ebugging for RGM */ + " mov $0x11, %al \n" + " outb %al, $0x80\n" + " xor %ax, %ax \n" + " mov %ax, %ds \n" + " lidt __myidt \n" + " mov %ax, %es \n" + " mov %ax, %fs \n" + " mov %ax, %gs \n" + " mov $0x40, %ax \n" + " mov %ax, %ds \n" + // pop the INT # that you pushed earlier + " popl %eax\n" + " pop %gs \n" + " pop %fs \n" + " pop %es \n" + " pop %ds \n" + " popal\n" + " iret\n" + ".code32\n" + ); +} + + +enum { + PCIBIOS = 0x1a, + MEMSIZE = 0x12 +}; +int +pcibios( + unsigned long *pedi, + unsigned long *pesi, + unsigned long *pebp, + unsigned long *pesp, + unsigned long *pebx, + unsigned long *pedx, + unsigned long *pecx, + unsigned long *peax, + unsigned long *pflags + ); +int +handleint21( + unsigned long *pedi, + unsigned long *pesi, + unsigned long *pebp, + unsigned long *pesp, + unsigned long *pebx, + unsigned long *pedx, + unsigned long *pecx, + unsigned long *peax, + unsigned long *pflags + ); + +extern void vga_exit(void); + +int +biosint( + unsigned long intnumber, + unsigned long gsfs, + unsigned long dses, + unsigned long edi, + unsigned long esi, + unsigned long ebp, + unsigned long esp, + unsigned long ebx, + unsigned long edx, + unsigned long ecx, + unsigned long eax, + unsigned long cs_ip, + unsigned short stackflags + ) { + unsigned long ip; + unsigned long cs; + unsigned long flags; + int ret = -1; + + ip = cs_ip & 0xffff; + cs = cs_ip >> 16; + flags = stackflags; + + printk_debug("biosint: # 0x%lx, eax 0x%lx ebx 0x%lx ecx 0x%lx edx 0x%lx\n", + intnumber, eax, ebx, ecx, edx); + printk_debug("biosint: ebp 0x%lx esp 0x%lx edi 0x%lx esi 0x%lx\n", ebp, esp, edi, esi); + printk_debug("biosint: ip 0x%x cs 0x%x flags 0x%x\n", ip, cs, flags); + // cases in a good compiler are just as good as your own tables. + switch (intnumber) { + case 0 ... 15: + // These are not BIOS service, but the CPU-generated exceptions + printk_info("biosint: Oops, exception %u\n", intnumber); + if (esp < 0x1000) { + printk_debug("Stack contents: "); + while (esp < 0x1000) { + printk_debug("0x%04x ", *(unsigned short *) esp); + esp += 2; + } + printk_debug("\n"); + } + printk_debug("biosint: Bailing out\n"); + // "longjmp" + vga_exit(); + break; + + case PCIBIOS: + ret = pcibios( &edi, &esi, &ebp, &esp, + &ebx, &edx, &ecx, &eax, &flags); + break; + case MEMSIZE: + // who cares. + eax = 64 * 1024; + ret = 0; + break; + case 0x15: + ret=handleint21( &edi, &esi, &ebp, &esp, + &ebx, &edx, &ecx, &eax, &flags); + break; + default: + printk_info("BIOSINT: Unsupport int #0x%x\n", + intnumber); + break; + } + if (ret) + flags |= 1; // carry flags + else + flags &= ~1; + stackflags = flags; + return ret; +} + + +void setup_realmode_idt(void) +{ + extern unsigned char idthandle, end_idthandle; + extern unsigned char debughandle, end_debughandle; + + int i; + struct realidt *idts = (struct realidt *) 0; + int codesize = &end_idthandle - &idthandle; + unsigned char *intbyte, *codeptr; + + // for each int, we create a customized little handler + // that just pushes %ax, puts the int # in %al, + // then calls the common interrupt handler. + // this necessitated because intel didn't know much about + // architecture when they did the 8086 (it shows) + // (hmm do they know anymore even now :-) + // obviously you can see I don't really care about memory + // efficiency. If I did I would probe back through the stack + // and get it that way. But that's really disgusting. + for (i = 0; i < 256; i++) { + idts[i].cs = 0; + codeptr = (char*) 4096 + i * codesize; + idts[i].offset = (unsigned) codeptr; + memcpy(codeptr, &idthandle, codesize); + intbyte = codeptr + 3; + *intbyte = i; + } + + // fixed entry points + + // VGA BIOSes tend to hardcode f000:f065 as the previous handler of + // int10. + // calling convention here is the same as INTs, we can reuse + // the int entry code. + codeptr = (char*) 0xff065; + memcpy(codeptr, &idthandle, codesize); + intbyte = codeptr + 3; + *intbyte = 0x42; /* int42 is the relocated int10 */ + + /* debug handler - useful to set a programmable delay between instructions if the TF bit is set upon + call to real mode */ + idts[1].cs = 0; + idts[1].offset = 16384; + memcpy(16384, &debughandle, &end_debughandle - &debughandle); + + +} + + + +enum { + CHECK = 0xb001, + FINDDEV = 0xb102, + READCONFBYTE = 0xb108, + READCONFWORD = 0xb109, + READCONFDWORD = 0xb10a, + WRITECONFBYTE = 0xb10b, + WRITECONFWORD = 0xb10c, + WRITECONFDWORD = 0xb10d +}; + +// errors go in AH. Just set these up so that word assigns +// will work. KISS. +enum { + PCIBIOS_NODEV = 0x8600, + PCIBIOS_BADREG = 0x8700 +}; + +int +pcibios( + unsigned long *pedi, + unsigned long *pesi, + unsigned long *pebp, + unsigned long *pesp, + unsigned long *pebx, + unsigned long *pedx, + unsigned long *pecx, + unsigned long *peax, + unsigned long *pflags + ) { + unsigned long edi = *pedi; + unsigned long esi = *pesi; + unsigned long ebp = *pebp; + unsigned long esp = *pesp; + unsigned long ebx = *pebx; + unsigned long edx = *pedx; + unsigned long ecx = *pecx; + unsigned long eax = *peax; + unsigned long flags = *pflags; + unsigned short func = (unsigned short) eax; + int retval = 0; + unsigned short devid, vendorid, devfn; + short devindex; /* Use short to get rid of gabage in upper half of 32-bit register */ + unsigned char bus; + device_t dev; + + switch(func) { + case CHECK: + *pedx = 0x4350; + *pecx = 0x2049; + retval = 0; + break; + case FINDDEV: + { + devid = *pecx; + vendorid = *pedx; + devindex = *pesi; + dev = 0; + while ((dev = dev_find_device(vendorid, devid, dev))) { + if (devindex <= 0) + break; + devindex--; + } + if (dev) { + unsigned short busdevfn; + *peax = 0; + // busnum is an unsigned char; + // devfn is an int, so we mask it off. + busdevfn = (dev->bus->secondary << 8) + | (dev->path.u.pci.devfn & 0xff); + printk_debug("0x%x: return 0x%x\n", func, busdevfn); + *pebx = busdevfn; + retval = 0; + } else { + *peax = PCIBIOS_NODEV; + retval = -1; + } + } + break; + case READCONFDWORD: + case READCONFWORD: + case READCONFBYTE: + case WRITECONFDWORD: + case WRITECONFWORD: + case WRITECONFBYTE: + { + unsigned long dword; + unsigned short word; + unsigned char byte; + unsigned char reg; + + devfn = *pebx & 0xff; + bus = *pebx >> 8; + reg = *pedi; + dev = dev_find_slot(bus, devfn); + if (! dev) { + printk_debug("0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, bus, devfn); + // idiots. the pcibios guys assumed you'd never pass a bad bus/devfn! + *peax = PCIBIOS_BADREG; + retval = -1; + } + switch(func) { + case READCONFBYTE: + byte = pci_read_config8(dev, reg); + *pecx = byte; + break; + case READCONFWORD: + word = pci_read_config16(dev, reg); + *pecx = word; + break; + case READCONFDWORD: + dword = pci_read_config32(dev, reg); + *pecx = dword; + break; + case WRITECONFBYTE: + byte = *pecx; + pci_write_config8(dev, reg, byte); + break; + case WRITECONFWORD: + word = *pecx; + pci_write_config16(dev, reg, word); + break; + case WRITECONFDWORD: + dword = *pecx; + pci_write_config32(dev, reg, dword); + break; + } + + if (retval) + retval = PCIBIOS_BADREG; + printk_debug("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%lx\n", func, bus, devfn, reg, *pecx); + *peax = 0; + retval = 0; + } + break; + default: + printk_err("UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func); + break; + } + + return retval; +} + + + +int handleint21( unsigned long *edi, unsigned long *esi, unsigned long *ebp, + unsigned long *esp, unsigned long *ebx, unsigned long *edx, + unsigned long *ecx, unsigned long *eax, unsigned long *flags) +{ +int res=-1; + switch(*eax&0xffff) + { + case 0x5f19: + break; + case 0x5f18: + *eax=0x5f; + *ebx=0x545; // MCLK = 133, 32M frame buffer, 256 M main memory + *ecx=0x060; + res=0; + break; + case 0x5f00: + *eax = 0x8600; + break; + case 0x5f01: + *eax = 0x5f; + *ecx = (*ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 + res = 0; + break; + case 0x5f02: + *eax=0x5f; + *ebx= (*ebx & 0xffff0000) | 2; + *ecx= (*ecx & 0xffff0000) | 0x401; // PAL + crt only + *edx= (*edx & 0xffff0000) | 0; // TV Layout - default + res=0; + break; + case 0x5f0f: + *eax=0x860f; + break; + } + return res; +} diff --git a/src/mainboard/via/epia-m/vgachip.h b/src/mainboard/via/epia-m/vgachip.h new file mode 100644 index 0000000000..d43788cd66 --- /dev/null +++ b/src/mainboard/via/epia-m/vgachip.h @@ -0,0 +1,10 @@ +#ifndef _PC80_VGABIOS +#define _PC80_VGABIOS + +extern struct chip_control pc80_vgabios_control; + +struct pc80_vgabios_config { + int nothing; +}; + +#endif /* _PC80_VGABIOS */ |