diff options
Diffstat (limited to 'arch/sparc64/kernel/devices.c')
| -rw-r--r-- | arch/sparc64/kernel/devices.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c deleted file mode 100644 index df9a1ca8fd7..00000000000 --- a/arch/sparc64/kernel/devices.c +++ /dev/null @@ -1,166 +0,0 @@ -/* devices.c: Initial scan of the prom device tree for important - * Sparc device nodes which we need to find. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/threads.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/string.h> -#include <linux/spinlock.h> -#include <linux/errno.h> - -#include <asm/page.h> -#include <asm/oplib.h> -#include <asm/system.h> -#include <asm/smp.h> -#include <asm/spitfire.h> -#include <asm/timer.h> -#include <asm/cpudata.h> - -/* Used to synchronize acceses to NatSemi SUPER I/O chip configure - * operations in asm/ns87303.h - */ -DEFINE_SPINLOCK(ns87303_lock); - -extern void cpu_probe(void); -extern void central_probe(void); - -static char *cpu_mid_prop(void) -{ - if (tlb_type == spitfire) - return "upa-portid"; - return "portid"; -} - -static int check_cpu_node(int nd, int *cur_inst, - int (*compare)(int, int, void *), void *compare_arg, - int *prom_node, int *mid) -{ - char node_str[128]; - - prom_getstring(nd, "device_type", node_str, sizeof(node_str)); - if (strcmp(node_str, "cpu")) - return -ENODEV; - - if (!compare(nd, *cur_inst, compare_arg)) { - if (prom_node) - *prom_node = nd; - if (mid) - *mid = prom_getintdefault(nd, cpu_mid_prop(), 0); - return 0; - } - - (*cur_inst)++; - - return -ENODEV; -} - -static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg, - int *prom_node, int *mid) -{ - int nd, cur_inst, err; - - nd = prom_root_node; - cur_inst = 0; - - err = check_cpu_node(nd, &cur_inst, - compare, compare_arg, - prom_node, mid); - if (err == 0) - return 0; - - nd = prom_getchild(nd); - while ((nd = prom_getsibling(nd)) != 0) { - err = check_cpu_node(nd, &cur_inst, - compare, compare_arg, - prom_node, mid); - if (err == 0) - return 0; - } - - return -ENODEV; -} - -static int cpu_instance_compare(int nd, int instance, void *_arg) -{ - int desired_instance = (int) (long) _arg; - - if (instance == desired_instance) - return 0; - return -ENODEV; -} - -int cpu_find_by_instance(int instance, int *prom_node, int *mid) -{ - return __cpu_find_by(cpu_instance_compare, (void *)(long)instance, - prom_node, mid); -} - -static int cpu_mid_compare(int nd, int instance, void *_arg) -{ - int desired_mid = (int) (long) _arg; - int this_mid; - - this_mid = prom_getintdefault(nd, cpu_mid_prop(), 0); - if (this_mid == desired_mid) - return 0; - return -ENODEV; -} - -int cpu_find_by_mid(int mid, int *prom_node) -{ - return __cpu_find_by(cpu_mid_compare, (void *)(long)mid, - prom_node, NULL); -} - -void __init device_scan(void) -{ - /* FIX ME FAST... -DaveM */ - ioport_resource.end = 0xffffffffffffffffUL; - - prom_printf("Booting Linux...\n"); - -#ifndef CONFIG_SMP - { - int err, cpu_node; - err = cpu_find_by_instance(0, &cpu_node, NULL); - if (err) { - prom_printf("No cpu nodes, cannot continue\n"); - prom_halt(); - } - cpu_data(0).clock_tick = prom_getintdefault(cpu_node, - "clock-frequency", - 0); - cpu_data(0).dcache_size = prom_getintdefault(cpu_node, - "dcache-size", - 16 * 1024); - cpu_data(0).dcache_line_size = - prom_getintdefault(cpu_node, "dcache-line-size", 32); - cpu_data(0).icache_size = prom_getintdefault(cpu_node, - "icache-size", - 16 * 1024); - cpu_data(0).icache_line_size = - prom_getintdefault(cpu_node, "icache-line-size", 32); - cpu_data(0).ecache_size = prom_getintdefault(cpu_node, - "ecache-size", - 4 * 1024 * 1024); - cpu_data(0).ecache_line_size = - prom_getintdefault(cpu_node, "ecache-line-size", 64); - printk("CPU[0]: Caches " - "D[sz(%d):line_sz(%d)] " - "I[sz(%d):line_sz(%d)] " - "E[sz(%d):line_sz(%d)]\n", - cpu_data(0).dcache_size, cpu_data(0).dcache_line_size, - cpu_data(0).icache_size, cpu_data(0).icache_line_size, - cpu_data(0).ecache_size, cpu_data(0).ecache_line_size); - } -#endif - - central_probe(); - - cpu_probe(); -} |