mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 09:15:42 +07:00
c85627fbf5
- Replace external declarations by proper includes where availiable.
The accesses to some symbols had to be modified, as before they were
declared using e.g. "extern int _end", while asm-generic/sections.h uses
e.g. "extern char _end[]"
- Remove unused or superfluous external declarations
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
172 lines
4.5 KiB
C
172 lines
4.5 KiB
C
/*
|
|
* linux/arch/m68k/sun3/config.c
|
|
*
|
|
* Copyright (C) 1996,1997 Pekka Pietik{inen
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file COPYING in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/console.h>
|
|
#include <linux/init.h>
|
|
#include <linux/bootmem.h>
|
|
|
|
#include <asm/oplib.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/contregs.h>
|
|
#include <asm/movs.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/pgalloc.h>
|
|
#include <asm/sun3-head.h>
|
|
#include <asm/sun3mmu.h>
|
|
#include <asm/rtc.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/idprom.h>
|
|
#include <asm/intersil.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/sections.h>
|
|
#include <asm/segment.h>
|
|
#include <asm/sun3ints.h>
|
|
|
|
char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
|
|
|
|
extern unsigned long sun3_gettimeoffset(void);
|
|
static void sun3_sched_init(irq_handler_t handler);
|
|
extern void sun3_get_model (char* model);
|
|
extern int sun3_hwclk(int set, struct rtc_time *t);
|
|
|
|
volatile char* clock_va;
|
|
extern unsigned long availmem;
|
|
unsigned long num_pages;
|
|
|
|
static void sun3_get_hardware_list(struct seq_file *m)
|
|
{
|
|
seq_printf(m, "PROM Revision:\t%s\n", romvec->pv_monid);
|
|
}
|
|
|
|
void __init sun3_init(void)
|
|
{
|
|
unsigned char enable_register;
|
|
int i;
|
|
|
|
m68k_machtype= MACH_SUN3;
|
|
m68k_cputype = CPU_68020;
|
|
m68k_fputype = FPU_68881; /* mc68881 actually */
|
|
m68k_mmutype = MMU_SUN3;
|
|
clock_va = (char *) 0xfe06000; /* dark */
|
|
sun3_intreg = (unsigned char *) 0xfe0a000; /* magic */
|
|
sun3_disable_interrupts();
|
|
|
|
prom_init((void *)LINUX_OPPROM_BEGVM);
|
|
|
|
GET_CONTROL_BYTE(AC_SENABLE,enable_register);
|
|
enable_register |= 0x50; /* Enable FPU */
|
|
SET_CONTROL_BYTE(AC_SENABLE,enable_register);
|
|
GET_CONTROL_BYTE(AC_SENABLE,enable_register);
|
|
|
|
/* This code looks suspicious, because it doesn't subtract
|
|
memory belonging to the kernel from the available space */
|
|
|
|
|
|
memset(sun3_reserved_pmeg, 0, sizeof(sun3_reserved_pmeg));
|
|
|
|
/* Reserve important PMEGS */
|
|
/* FIXME: These should be probed instead of hardcoded */
|
|
|
|
for (i=0; i<8; i++) /* Kernel PMEGs */
|
|
sun3_reserved_pmeg[i] = 1;
|
|
|
|
sun3_reserved_pmeg[247] = 1; /* ROM mapping */
|
|
sun3_reserved_pmeg[248] = 1; /* AMD Ethernet */
|
|
sun3_reserved_pmeg[251] = 1; /* VB area */
|
|
sun3_reserved_pmeg[254] = 1; /* main I/O */
|
|
|
|
sun3_reserved_pmeg[249] = 1;
|
|
sun3_reserved_pmeg[252] = 1;
|
|
sun3_reserved_pmeg[253] = 1;
|
|
set_fs(KERNEL_DS);
|
|
}
|
|
|
|
/* Without this, Bad Things happen when something calls arch_reset. */
|
|
static void sun3_reboot (void)
|
|
{
|
|
prom_reboot ("vmlinux");
|
|
}
|
|
|
|
static void sun3_halt (void)
|
|
{
|
|
prom_halt ();
|
|
}
|
|
|
|
/* sun3 bootmem allocation */
|
|
|
|
static void __init sun3_bootmem_alloc(unsigned long memory_start,
|
|
unsigned long memory_end)
|
|
{
|
|
unsigned long start_page;
|
|
|
|
/* align start/end to page boundaries */
|
|
memory_start = ((memory_start + (PAGE_SIZE-1)) & PAGE_MASK);
|
|
memory_end = memory_end & PAGE_MASK;
|
|
|
|
start_page = __pa(memory_start) >> PAGE_SHIFT;
|
|
num_pages = __pa(memory_end) >> PAGE_SHIFT;
|
|
|
|
high_memory = (void *)memory_end;
|
|
availmem = memory_start;
|
|
|
|
m68k_setup_node(0);
|
|
availmem += init_bootmem_node(NODE_DATA(0), start_page, 0, num_pages);
|
|
availmem = (availmem + (PAGE_SIZE-1)) & PAGE_MASK;
|
|
|
|
free_bootmem(__pa(availmem), memory_end - (availmem));
|
|
}
|
|
|
|
|
|
void __init config_sun3(void)
|
|
{
|
|
unsigned long memory_start, memory_end;
|
|
|
|
printk("ARCH: SUN3\n");
|
|
idprom_init();
|
|
|
|
/* Subtract kernel memory from available memory */
|
|
|
|
mach_sched_init = sun3_sched_init;
|
|
mach_init_IRQ = sun3_init_IRQ;
|
|
mach_reset = sun3_reboot;
|
|
mach_gettimeoffset = sun3_gettimeoffset;
|
|
mach_get_model = sun3_get_model;
|
|
mach_hwclk = sun3_hwclk;
|
|
mach_halt = sun3_halt;
|
|
mach_get_hardware_list = sun3_get_hardware_list;
|
|
|
|
memory_start = ((((unsigned long)_end) + 0x2000) & ~0x1fff);
|
|
// PROM seems to want the last couple of physical pages. --m
|
|
memory_end = *(romvec->pv_sun3mem) + PAGE_OFFSET - 2*PAGE_SIZE;
|
|
|
|
m68k_num_memory=1;
|
|
m68k_memory[0].size=*(romvec->pv_sun3mem);
|
|
|
|
sun3_bootmem_alloc(memory_start, memory_end);
|
|
}
|
|
|
|
static void __init sun3_sched_init(irq_handler_t timer_routine)
|
|
{
|
|
sun3_disable_interrupts();
|
|
intersil_clock->cmd_reg=(INTERSIL_RUN|INTERSIL_INT_DISABLE|INTERSIL_24H_MODE);
|
|
intersil_clock->int_reg=INTERSIL_HZ_100_MASK;
|
|
intersil_clear();
|
|
sun3_enable_irq(5);
|
|
intersil_clock->cmd_reg=(INTERSIL_RUN|INTERSIL_INT_ENABLE|INTERSIL_24H_MODE);
|
|
sun3_enable_interrupts();
|
|
intersil_clear();
|
|
}
|
|
|