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Linux/arch/sparc/prom/init_32.c

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Diff markup

Differences between /arch/sparc/prom/init_32.c (Architecture mips) and /arch/sparc/prom/init_32.c (Architecture sparc)


  1 // SPDX-License-Identifier: GPL-2.0                 1 // SPDX-License-Identifier: GPL-2.0
  2 /*                                                  2 /*
  3  * init.c:  Initialize internal variables used      3  * init.c:  Initialize internal variables used by the PROM
  4  *          library functions.                      4  *          library functions.
  5  *                                                  5  *
  6  * Copyright (C) 1995 David S. Miller (davem@c      6  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  7  * Copyright (C) 1998 Jakub Jelinek (jj@sunsit      7  * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  8  */                                                 8  */
  9                                                     9 
 10 #include <linux/kernel.h>                          10 #include <linux/kernel.h>
 11 #include <linux/init.h>                            11 #include <linux/init.h>
 12 #include <linux/module.h>                          12 #include <linux/module.h>
 13                                                    13 
 14 #include <asm/openprom.h>                          14 #include <asm/openprom.h>
 15 #include <asm/oplib.h>                             15 #include <asm/oplib.h>
 16                                                    16 
 17 struct linux_romvec *romvec;                       17 struct linux_romvec *romvec;
 18 EXPORT_SYMBOL(romvec);                             18 EXPORT_SYMBOL(romvec);
 19                                                    19 
 20 enum prom_major_version prom_vers;                 20 enum prom_major_version prom_vers;
 21 unsigned int prom_rev, prom_prev;                  21 unsigned int prom_rev, prom_prev;
 22                                                    22 
 23 /* The root node of the prom device tree. */       23 /* The root node of the prom device tree. */
 24 phandle prom_root_node;                            24 phandle prom_root_node;
 25 EXPORT_SYMBOL(prom_root_node);                     25 EXPORT_SYMBOL(prom_root_node);
 26                                                    26 
 27 /* Pointer to the device tree operations struc     27 /* Pointer to the device tree operations structure. */
 28 struct linux_nodeops *prom_nodeops;                28 struct linux_nodeops *prom_nodeops;
 29                                                    29 
 30 /* You must call prom_init() before you attemp     30 /* You must call prom_init() before you attempt to use any of the
 31  * routines in the prom library.                   31  * routines in the prom library.
 32  * It gets passed the pointer to the PROM vect     32  * It gets passed the pointer to the PROM vector.
 33  */                                                33  */
 34                                                    34 
 35 void __init prom_init(struct linux_romvec *rp)     35 void __init prom_init(struct linux_romvec *rp)
 36 {                                                  36 {
 37         romvec = rp;                               37         romvec = rp;
 38                                                    38 
 39         switch(romvec->pv_romvers) {               39         switch(romvec->pv_romvers) {
 40         case 0:                                    40         case 0:
 41                 prom_vers = PROM_V0;               41                 prom_vers = PROM_V0;
 42                 break;                             42                 break;
 43         case 2:                                    43         case 2:
 44                 prom_vers = PROM_V2;               44                 prom_vers = PROM_V2;
 45                 break;                             45                 break;
 46         case 3:                                    46         case 3:
 47                 prom_vers = PROM_V3;               47                 prom_vers = PROM_V3;
 48                 break;                             48                 break;
 49         default:                                   49         default:
 50                 prom_printf("PROMLIB: Bad PROM     50                 prom_printf("PROMLIB: Bad PROM version %d\n",
 51                             romvec->pv_romvers     51                             romvec->pv_romvers);
 52                 prom_halt();                       52                 prom_halt();
 53                 break;                             53                 break;
 54         }                                          54         }
 55                                                    55 
 56         prom_rev = romvec->pv_plugin_revision;     56         prom_rev = romvec->pv_plugin_revision;
 57         prom_prev = romvec->pv_printrev;           57         prom_prev = romvec->pv_printrev;
 58         prom_nodeops = romvec->pv_nodeops;         58         prom_nodeops = romvec->pv_nodeops;
 59                                                    59 
 60         prom_root_node = prom_getsibling(0);       60         prom_root_node = prom_getsibling(0);
 61         if ((prom_root_node == 0) || ((s32)pro     61         if ((prom_root_node == 0) || ((s32)prom_root_node == -1))
 62                 prom_halt();                       62                 prom_halt();
 63                                                    63 
 64         if((((unsigned long) prom_nodeops) ==      64         if((((unsigned long) prom_nodeops) == 0) || 
 65            (((unsigned long) prom_nodeops) ==      65            (((unsigned long) prom_nodeops) == -1))
 66                 prom_halt();                       66                 prom_halt();
 67                                                    67 
 68         prom_meminit();                            68         prom_meminit();
 69                                                    69 
 70         prom_ranges_init();                        70         prom_ranges_init();
 71                                                    71 
 72         printk("PROMLIB: Sun Boot Prom Version     72         printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n",
 73                romvec->pv_romvers, prom_rev);      73                romvec->pv_romvers, prom_rev);
 74                                                    74 
 75         /* Initialization successful. */           75         /* Initialization successful. */
 76 }                                                  76 }
 77                                                    77 

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