mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
066bcaca51
Many of the core sparc kernel files are not modules, but just including module.h for exporting symbols. Now these files can use the lighter footprint export.h for this role. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
|
|
* idprom.c: Routines to load the idprom into kernel addresses and
|
|
* interpret the data contained within.
|
|
*
|
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/init.h>
|
|
#include <linux/export.h>
|
|
|
|
#include <asm/oplib.h>
|
|
#include <asm/idprom.h>
|
|
|
|
struct idprom *idprom;
|
|
EXPORT_SYMBOL(idprom);
|
|
|
|
static struct idprom idprom_buffer;
|
|
|
|
#ifdef CONFIG_SPARC32
|
|
#include <asm/machines.h> /* Fun with Sun released architectures. */
|
|
|
|
/* Here is the master table of Sun machines which use some implementation
|
|
* of the Sparc CPU and have a meaningful IDPROM machtype value that we
|
|
* know about. See asm-sparc/machines.h for empirical constants.
|
|
*/
|
|
static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = {
|
|
/* First, Sun4's */
|
|
{ .name = "Sun 4/100 Series", .id_machtype = (SM_SUN4 | SM_4_110) },
|
|
{ .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) },
|
|
{ .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) },
|
|
{ .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) },
|
|
/* Now Leon */
|
|
{ .name = "Leon3 System-on-a-Chip", .id_machtype = (M_LEON | M_LEON3_SOC) },
|
|
/* Now, Sun4c's */
|
|
{ .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) },
|
|
{ .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) },
|
|
{ .name = "Sun4c SparcStation 1+", .id_machtype = (SM_SUN4C | SM_4C_SS1PLUS) },
|
|
{ .name = "Sun4c SparcStation SLC", .id_machtype = (SM_SUN4C | SM_4C_SLC) },
|
|
{ .name = "Sun4c SparcStation 2", .id_machtype = (SM_SUN4C | SM_4C_SS2) },
|
|
{ .name = "Sun4c SparcStation ELC", .id_machtype = (SM_SUN4C | SM_4C_ELC) },
|
|
{ .name = "Sun4c SparcStation IPX", .id_machtype = (SM_SUN4C | SM_4C_IPX) },
|
|
/* Finally, early Sun4m's */
|
|
{ .name = "Sun4m SparcSystem600", .id_machtype = (SM_SUN4M | SM_4M_SS60) },
|
|
{ .name = "Sun4m SparcStation10/20", .id_machtype = (SM_SUN4M | SM_4M_SS50) },
|
|
{ .name = "Sun4m SparcStation5", .id_machtype = (SM_SUN4M | SM_4M_SS40) },
|
|
/* One entry for the OBP arch's which are sun4d, sun4e, and newer sun4m's */
|
|
{ .name = "Sun4M OBP based system", .id_machtype = (SM_SUN4M_OBP | 0x0) } };
|
|
|
|
static void __init display_system_type(unsigned char machtype)
|
|
{
|
|
char sysname[128];
|
|
register int i;
|
|
|
|
for (i = 0; i < NUM_SUN_MACHINES; i++) {
|
|
if (Sun_Machines[i].id_machtype == machtype) {
|
|
if (machtype != (SM_SUN4M_OBP | 0x00) ||
|
|
prom_getproperty(prom_root_node, "banner-name",
|
|
sysname, sizeof(sysname)) <= 0)
|
|
printk(KERN_WARNING "TYPE: %s\n",
|
|
Sun_Machines[i].name);
|
|
else
|
|
printk(KERN_WARNING "TYPE: %s\n", sysname);
|
|
return;
|
|
}
|
|
}
|
|
|
|
prom_printf("IDPROM: Warning, bogus id_machtype value, 0x%x\n", machtype);
|
|
}
|
|
#else
|
|
static void __init display_system_type(unsigned char machtype)
|
|
{
|
|
}
|
|
#endif
|
|
/* Calculate the IDPROM checksum (xor of the data bytes). */
|
|
static unsigned char __init calc_idprom_cksum(struct idprom *idprom)
|
|
{
|
|
unsigned char cksum, i, *ptr = (unsigned char *)idprom;
|
|
|
|
for (i = cksum = 0; i <= 0x0E; i++)
|
|
cksum ^= *ptr++;
|
|
|
|
return cksum;
|
|
}
|
|
|
|
/* Create a local IDPROM copy, verify integrity, and display information. */
|
|
void __init idprom_init(void)
|
|
{
|
|
prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer));
|
|
|
|
idprom = &idprom_buffer;
|
|
|
|
if (idprom->id_format != 0x01)
|
|
prom_printf("IDPROM: Warning, unknown format type!\n");
|
|
|
|
if (idprom->id_cksum != calc_idprom_cksum(idprom))
|
|
prom_printf("IDPROM: Warning, checksum failure (nvram=%x, calc=%x)!\n",
|
|
idprom->id_cksum, calc_idprom_cksum(idprom));
|
|
|
|
display_system_type(idprom->id_machtype);
|
|
|
|
printk(KERN_WARNING "Ethernet address: %pM\n", idprom->id_ethaddr);
|
|
}
|