bae9f85ddb
This commit adds support for describing USB ports in devicetree.cb.
It allows a USB port location to be described in the tree with
configuration information, and ACPI code to be generated that
provides this information to the OS.
A new scan_usb_bus() is added that will scan bridges for devices so
a tree of ports and hubs can be created.
The device address is computed with a 'port type' and a 'port id'
which is flexible for SOC to handle depending on their specific USB
setup and allows USB2 and USB3 ports to be described separately.
For example a board may have devices on two ports, one with a USB2
device and one with a USB3 device, both of which are connected to an
xHCI controller with a root hub:
xHCI
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RootHub
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USB2[0] USB3[2]
device pci 14.0 on
chip drivers/usb/acpi
register "name" = ""Root Hub""
device usb 0.0 on
chip drivers/usb/acpi
register "name" = ""USB 2.0 Port 0""
device usb 2.0 on end
end
chip drivers/usb/acpi
register "name" = ""USB 3.0 Port 2""
device usb 3.2 on end
end
end
end
end
Change-Id: I64e6eba503cdab49be393465b535e139a8c90ef4
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/26169
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
105 lines
2.6 KiB
Text
105 lines
2.6 KiB
Text
/* A Bison parser, made by GNU Bison 3.0.4. */
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/* Bison interface for Yacc-like parsers in C
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Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* As a special exception, you may create a larger work that contains
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part or all of the Bison parser skeleton and distribute that work
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under terms of your choice, so long as that work isn't itself a
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parser generator using the skeleton or a modified version thereof
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as a parser skeleton. Alternatively, if you modify or redistribute
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the parser skeleton itself, you may (at your option) remove this
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special exception, which will cause the skeleton and the resulting
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Bison output files to be licensed under the GNU General Public
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License without this special exception.
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This special exception was added by the Free Software Foundation in
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version 2.2 of Bison. */
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#ifndef YY_YY_UTIL_SCONFIG_SCONFIG_TAB_H_SHIPPED_INCLUDED
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# define YY_YY_UTIL_SCONFIG_SCONFIG_TAB_H_SHIPPED_INCLUDED
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/* Debug traces. */
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#ifndef YYDEBUG
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# define YYDEBUG 0
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#endif
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#if YYDEBUG
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extern int yydebug;
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#endif
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/* Token type. */
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#ifndef YYTOKENTYPE
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# define YYTOKENTYPE
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enum yytokentype
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{
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CHIP = 258,
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DEVICE = 259,
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REGISTER = 260,
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BOOL = 261,
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BUS = 262,
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RESOURCE = 263,
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END = 264,
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EQUALS = 265,
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HEX = 266,
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STRING = 267,
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PCI = 268,
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PNP = 269,
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I2C = 270,
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APIC = 271,
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CPU_CLUSTER = 272,
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CPU = 273,
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DOMAIN = 274,
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IRQ = 275,
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DRQ = 276,
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IO = 277,
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NUMBER = 278,
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SUBSYSTEMID = 279,
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INHERIT = 280,
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IOAPIC_IRQ = 281,
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IOAPIC = 282,
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PCIINT = 283,
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GENERIC = 284,
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SPI = 285,
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USB = 286,
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MMIO = 287
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};
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#endif
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/* Value type. */
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#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
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union YYSTYPE
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{
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struct device *device;
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char *string;
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int number;
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};
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typedef union YYSTYPE YYSTYPE;
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# define YYSTYPE_IS_TRIVIAL 1
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# define YYSTYPE_IS_DECLARED 1
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#endif
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extern YYSTYPE yylval;
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int yyparse (void);
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#endif /* !YY_YY_UTIL_SCONFIG_SCONFIG_TAB_H_SHIPPED_INCLUDED */
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