diff options
Diffstat (limited to 'src/mainboard/siemens/sitemp_g1p1/acpi/debug.asl')
| -rw-r--r-- | src/mainboard/siemens/sitemp_g1p1/acpi/debug.asl | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/mainboard/siemens/sitemp_g1p1/acpi/debug.asl b/src/mainboard/siemens/sitemp_g1p1/acpi/debug.asl new file mode 100644 index 0000000000..bd5c9659e5 --- /dev/null +++ b/src/mainboard/siemens/sitemp_g1p1/acpi/debug.asl @@ -0,0 +1,198 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + DefinitionBlock ( + "DSDT.AML", + "DSDT", + 0x01, + "XXXXXX", + "XXXXXXXX", + 0x00010001 + ) + { + #include "debug.asl" + } +*/ + +/* +* 0x80: POST_BASE +* 0x3F8: DEBCOM_BASE +* X80: POST_REGION +* P80: PORT80 +* +* CREG: DEBCOM_REGION +* CUAR: DEBCOM_UART +* CDAT: DEBCOM_DATA +* CDLM: DEBCOM_DLM +* DLCR: DEBCOM_LCR +* CMCR: DEBCOM_MCR +* CLSR: DEBCOM_LSR +* +* DEBUG_INIT DINI +*/ + +OperationRegion(X80, SystemIO, 0x80, 1) + Field(X80, ByteAcc, NoLock, Preserve) +{ + P80, 8 +} + +OperationRegion(CREG, SystemIO, 0x3F8, 8) + Field(CREG, ByteAcc, NoLock, Preserve) +{ + CDAT, 8, + CDLM, 8,, 8, DLCR, 8, CMCR, 8, CLSR, 8 +} + +/* +* DINI +* Initialize the COM port to 115,200 8-N-1 +*/ +Method(DINI) +{ + store(0x83, DLCR) + store(0x01, CDAT) /* 115200 baud (low) */ + store(0x00, CDLM) /* 115200 baud (high) */ + store(0x03, DLCR) /* word=8 stop=1 parity=none */ + store(0x03, CMCR) /* DTR=1 RTS=1 Out2=Off Loop=Off */ + store(0x00, CDLM) /* turn off interrupts */ +} + +/* +* THRE +* Wait for COM port transmitter holding register to go empty +*/ +Method(THRE) +{ + and(CLSR, 0x20, local0) + while (Lequal(local0, Zero)) { + and(CLSR, 0x20, local0) + } +} + +/* +* OUTX +* Send a single raw character +*/ +Method(OUTX, 1) +{ + THRE() + store(Arg0, CDAT) +} + +/* +* OUTC +* Send a single character, expanding LF into CR/LF +*/ +Method(OUTC, 1) +{ + if (LEqual(Arg0, 0x0a)) { + OUTX(0x0d) + } + OUTX(Arg0) +} + +/* +* DBGN +* Send a single hex nibble +*/ +Method(DBGN, 1) +{ + and(Arg0, 0x0f, Local0) + if (LLess(Local0, 10)) { + add(Local0, 0x30, Local0) + } else { + add(Local0, 0x37, Local0) + } + OUTC(Local0) +} + +/* +* DBGB +* Send a hex byte +*/ +Method(DBGB, 1) +{ + ShiftRight(Arg0, 4, Local0) + DBGN(Local0) + DBGN(Arg0) +} + +/* +* DBGW +* Send a hex word +*/ +Method(DBGW, 1) +{ + ShiftRight(Arg0, 8, Local0) + DBGB(Local0) + DBGB(Arg0) +} + +/* +* DBGD +* Send a hex Dword +*/ +Method(DBGD, 1) +{ + ShiftRight(Arg0, 16, Local0) + DBGW(Local0) + DBGW(Arg0) +} + +/* +* DBGO +* Send either a string or an integer +*/ +Method(DBGO, 1) +{ + /* DINI() */ + if (LEqual(ObjectType(Arg0), 1)) { + if (LGreater(Arg0, 0xffff)) { + DBGD(Arg0) + } else { + if (LGreater(Arg0, 0xff)) { + DBGW(Arg0) + } else { + DBGB(Arg0) + } + } + } else { + Name(BDBG, Buffer(80) {}) + store(Arg0, BDBG) + store(0, Local1) + while (One) { + store(GETC(BDBG, Local1), Local0) + if (LEqual(Local0, 0)) { + return (0) + } + OUTC(Local0) + Increment(Local1) + } + } + return (0) +} + +/* Get a char from a string */ +Method(GETC, 2) +{ + CreateByteField(Arg0, Arg1, DBGC) + return (DBGC) +} |