sconfig: Allow chipset to provide a base devicetree

This change extends the devicetree override one more layer and allows
the chipset to provide the base devicetree.  This allows the chipset to
assign alias names to devices as well as set default register values.
This works for both the baseboard devicetree.cb as well as variant
overridetree.cb.

chipset.cb:
device pci 15.0 alias i2c0 off end

devicetree.cb:
device ref i2c0 on end

BUG=b:156957424

Change-Id: Ia7500a62f6211243b519424ef3834b9e7615e2fd
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 52 insertions, 46 deletions

diff --git a/util/sconfig/sconfig.tab.h_shipped b/util/sconfig/sconfig.tab.h_shipped
index b556bbad138c..b05831fc33e5 100644
--- a/util/sconfig/sconfig.tab.h_shipped
+++ b/util/sconfig/sconfig.tab.h_shipped
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 3.5.3.  */
+/* A Bison parser, made by GNU Bison 3.6.3.  */
 
 /* Bison interface for Yacc-like parsers in C
 
@@ -31,8 +31,9 @@
    This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.  */
 
-/* Undocumented macros, especially those whose name start with YY_,
-   are private implementation details.  Do not rely on them.  */
+/* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
+   especially those whose name start with YY_ or yy_.  They are
+   private implementation details that can be changed or removed.  */
 
 #ifndef YY_YY_SRC_COREBOOT_UTIL_SCONFIG_SCONFIG_TAB_H_SHIPPED_INCLUDED
 # define YY_YY_SRC_COREBOOT_UTIL_SCONFIG_SCONFIG_TAB_H_SHIPPED_INCLUDED
@@ -44,54 +45,59 @@
 extern int yydebug;
 #endif
 
-/* Token type.  */
+/* Token kinds.  */
 #ifndef YYTOKENTYPE
 # define YYTOKENTYPE
   enum yytokentype
   {
-    CHIP = 258,
-    DEVICE = 259,
-    REGISTER = 260,
-    ALIAS = 261,
-    REFERENCE = 262,
-    ASSOCIATION = 263,
-    BOOL = 264,
-    STATUS = 265,
-    MANDATORY = 266,
-    BUS = 267,
-    RESOURCE = 268,
-    END = 269,
-    EQUALS = 270,
-    HEX = 271,
-    STRING = 272,
-    PCI = 273,
-    PNP = 274,
-    I2C = 275,
-    APIC = 276,
-    CPU_CLUSTER = 277,
-    CPU = 278,
-    DOMAIN = 279,
-    IRQ = 280,
-    DRQ = 281,
-    SLOT_DESC = 282,
-    IO = 283,
-    NUMBER = 284,
-    SUBSYSTEMID = 285,
-    INHERIT = 286,
-    IOAPIC_IRQ = 287,
-    IOAPIC = 288,
-    PCIINT = 289,
-    GENERIC = 290,
-    SPI = 291,
-    USB = 292,
-    MMIO = 293,
-    LPC = 294,
-    ESPI = 295,
-    FW_CONFIG_TABLE = 296,
-    FW_CONFIG_FIELD = 297,
-    FW_CONFIG_OPTION = 298,
-    FW_CONFIG_PROBE = 299
+    YYEMPTY = -2,
+    YYEOF = 0,                     /* "end of file"  */
+    YYerror = 256,                 /* error  */
+    YYUNDEF = 257,                 /* "invalid token"  */
+    CHIP = 258,                    /* CHIP  */
+    DEVICE = 259,                  /* DEVICE  */
+    REGISTER = 260,                /* REGISTER  */
+    ALIAS = 261,                   /* ALIAS  */
+    REFERENCE = 262,               /* REFERENCE  */
+    ASSOCIATION = 263,             /* ASSOCIATION  */
+    BOOL = 264,                    /* BOOL  */
+    STATUS = 265,                  /* STATUS  */
+    MANDATORY = 266,               /* MANDATORY  */
+    BUS = 267,                     /* BUS  */
+    RESOURCE = 268,                /* RESOURCE  */
+    END = 269,                     /* END  */
+    EQUALS = 270,                  /* EQUALS  */
+    HEX = 271,                     /* HEX  */
+    STRING = 272,                  /* STRING  */
+    PCI = 273,                     /* PCI  */
+    PNP = 274,                     /* PNP  */
+    I2C = 275,                     /* I2C  */
+    APIC = 276,                    /* APIC  */
+    CPU_CLUSTER = 277,             /* CPU_CLUSTER  */
+    CPU = 278,                     /* CPU  */
+    DOMAIN = 279,                  /* DOMAIN  */
+    IRQ = 280,                     /* IRQ  */
+    DRQ = 281,                     /* DRQ  */
+    SLOT_DESC = 282,               /* SLOT_DESC  */
+    IO = 283,                      /* IO  */
+    NUMBER = 284,                  /* NUMBER  */
+    SUBSYSTEMID = 285,             /* SUBSYSTEMID  */
+    INHERIT = 286,                 /* INHERIT  */
+    IOAPIC_IRQ = 287,              /* IOAPIC_IRQ  */
+    IOAPIC = 288,                  /* IOAPIC  */
+    PCIINT = 289,                  /* PCIINT  */
+    GENERIC = 290,                 /* GENERIC  */
+    SPI = 291,                     /* SPI  */
+    USB = 292,                     /* USB  */
+    MMIO = 293,                    /* MMIO  */
+    LPC = 294,                     /* LPC  */
+    ESPI = 295,                    /* ESPI  */
+    FW_CONFIG_TABLE = 296,         /* FW_CONFIG_TABLE  */
+    FW_CONFIG_FIELD = 297,         /* FW_CONFIG_FIELD  */
+    FW_CONFIG_OPTION = 298,        /* FW_CONFIG_OPTION  */
+    FW_CONFIG_PROBE = 299          /* FW_CONFIG_PROBE  */
   };
+  typedef enum yytokentype yytoken_kind_t;
 #endif
 
 /* Value type.  */