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[Linux-mips-commits]CVS: linux/arch/mips/vr41xx/vr4181/osprey Makefile,NONE,1.1 dbg_io.c,NONE,1.1 prom.c,NONE,1.1 reset.c,NONE,1.1 setup.c,NONE,1.1
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From: Paul M. <le...@us...> - 2002-06-14 13:56:02
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Update of /cvsroot/linux-mips/linux/arch/mips/vr41xx/vr4181/osprey
In directory usw-pr-cvs1:/tmp/cvs-serv28603
Added Files:
Makefile dbg_io.c prom.c reset.c setup.c
Log Message:
Re-add Osprey specific bits.
--- NEW FILE: Makefile ---
#
# Makefile for common code of NEC Osprey board
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
.S.s:
$(CPP) $(CFLAGS) $< -o $*.s
.S.o:
$(CC) $(CFLAGS) -c $< -o $*.o
O_TARGET := osprey.o
obj-y := setup.o prom.o reset.o
obj-$(CONFIG_REMOTE_DEBUG) += dbg_io.o
include $(TOPDIR)/Rules.make
--- NEW FILE: dbg_io.c ---
/*
* kgdb io functions for osprey. We use the serial port on debug board.
*
* Copyright (C) 2001 MontaVista Software Inc.
* Author: js...@mv... or js...@ju...
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
/* ======================= CONFIG ======================== */
/* [jsun] we use the second serial port for kdb */
#define BASE 0xb7fffff0
#define MAX_BAUD 115200
/* distance in bytes between two serial registers */
#define REG_OFFSET 1
/*
* 0 - kgdb does serial init
* 1 - kgdb skip serial init
*/
static int remoteDebugInitialized = 1;
/*
* the default baud rate *if* kgdb does serial init
*/
#define BAUD_DEFAULT UART16550_BAUD_38400
/* ======================= END OF CONFIG ======================== */
typedef unsigned char uint8;
typedef unsigned int uint32;
#define UART16550_BAUD_2400 2400
#define UART16550_BAUD_4800 4800
#define UART16550_BAUD_9600 9600
#define UART16550_BAUD_19200 19200
#define UART16550_BAUD_38400 38400
#define UART16550_BAUD_57600 57600
#define UART16550_BAUD_115200 115200
#define UART16550_PARITY_NONE 0
#define UART16550_PARITY_ODD 0x08
#define UART16550_PARITY_EVEN 0x18
#define UART16550_PARITY_MARK 0x28
#define UART16550_PARITY_SPACE 0x38
#define UART16550_DATA_5BIT 0x0
#define UART16550_DATA_6BIT 0x1
#define UART16550_DATA_7BIT 0x2
#define UART16550_DATA_8BIT 0x3
#define UART16550_STOP_1BIT 0x0
#define UART16550_STOP_2BIT 0x4
/* register offset */
#define OFS_RCV_BUFFER 0
#define OFS_TRANS_HOLD 0
#define OFS_SEND_BUFFER 0
#define OFS_INTR_ENABLE (1*REG_OFFSET)
#define OFS_INTR_ID (2*REG_OFFSET)
#define OFS_DATA_FORMAT (3*REG_OFFSET)
#define OFS_LINE_CONTROL (3*REG_OFFSET)
#define OFS_MODEM_CONTROL (4*REG_OFFSET)
#define OFS_RS232_OUTPUT (4*REG_OFFSET)
#define OFS_LINE_STATUS (5*REG_OFFSET)
#define OFS_MODEM_STATUS (6*REG_OFFSET)
#define OFS_RS232_INPUT (6*REG_OFFSET)
#define OFS_SCRATCH_PAD (7*REG_OFFSET)
#define OFS_DIVISOR_LSB (0*REG_OFFSET)
#define OFS_DIVISOR_MSB (1*REG_OFFSET)
/* memory-mapped read/write of the port */
#define UART16550_READ(y) (*((volatile uint8*)(BASE + y)))
#define UART16550_WRITE(y, z) ((*((volatile uint8*)(BASE + y))) = z)
void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop)
{
/* disable interrupts */
UART16550_WRITE(OFS_INTR_ENABLE, 0);
/* set up buad rate */
{
uint32 divisor;
/* set DIAB bit */
UART16550_WRITE(OFS_LINE_CONTROL, 0x80);
/* set divisor */
divisor = MAX_BAUD / baud;
UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff);
UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8);
/* clear DIAB bit */
UART16550_WRITE(OFS_LINE_CONTROL, 0x0);
}
/* set data format */
UART16550_WRITE(OFS_DATA_FORMAT, data | parity | stop);
}
uint8 getDebugChar(void)
{
if (!remoteDebugInitialized) {
remoteDebugInitialized = 1;
debugInit(BAUD_DEFAULT,
UART16550_DATA_8BIT,
UART16550_PARITY_NONE, UART16550_STOP_1BIT);
}
while ((UART16550_READ(OFS_LINE_STATUS) & 0x1) == 0);
return UART16550_READ(OFS_RCV_BUFFER);
}
int putDebugChar(uint8 byte)
{
if (!remoteDebugInitialized) {
remoteDebugInitialized = 1;
debugInit(BAUD_DEFAULT,
UART16550_DATA_8BIT,
UART16550_PARITY_NONE, UART16550_STOP_1BIT);
}
while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0);
UART16550_WRITE(OFS_SEND_BUFFER, byte);
return 1;
}
--- NEW FILE: prom.c ---
/*
* Copyright 2001 MontaVista Software Inc.
* Author: js...@mv... or js...@ju...
*
* arch/mips/vr4181/osprey/prom.c
* prom code for osprey.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/init.h>
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
char arcs_cmdline[CL_SIZE];
const char *get_system_type(void)
{
return "NEC_Vr41xx Osprey";
}
/*
* [jsun] right now we assume it is the nec debug monitor, which does
* not pass any arguments.
*/
void __init prom_init()
{
strcat(arcs_cmdline, "ether=46,0x03fe0300,eth0 ");
// strcpy(arcs_cmdline, "ether=0,0x0300,eth0 "
// strcat(arcs_cmdline, "video=vr4181fb:xres:240,yres:320,bpp:8 ");
mips_machgroup = MACH_GROUP_NEC_VR41XX;
mips_machtype = MACH_NEC_OSPREY;
/* 16MB fixed */
add_memory_region(0, 16 << 20, BOOT_MEM_RAM);
}
void __init prom_free_prom_memory(void)
{
}
void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
{
}
--- NEW FILE: reset.c ---
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* Copyright (C) 1997, 2001 Ralf Baechle
* Copyright 2001 MontaVista Software Inc.
* Author: js...@mv... or js...@ju...
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/reboot.h>
#include <asm/system.h>
void nec_osprey_restart(char *command)
{
set_cp0_status(ST0_ERL);
change_cp0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
flush_cache_all();
write_32bit_cp0_register(CP0_WIRED, 0);
__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
}
void nec_osprey_halt(void)
{
printk(KERN_NOTICE "\n** You can safely turn off the power\n");
while (1)
__asm__(".set\tmips3\n\t"
"wait\n\t"
".set\tmips0");
}
void nec_osprey_power_off(void)
{
nec_osprey_halt();
}
--- NEW FILE: setup.c ---
/*
* linux/arch/mips/vr4181/setup.c
*
* VR41xx setup routines
*
* Copyright (C) 1999 Bradley D. LaRonde
* Copyright (C) 1999, 2000 Michael Klar
*
* Copyright 2001 MontaVista Software Inc.
* Author: js...@mv... or js...@ju...
*
* 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/config.h>
#include <linux/console.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <asm/reboot.h>
#include <asm/vr4181/vr4181.h>
#include <asm/io.h>
extern void nec_osprey_restart(char* c);
extern void nec_osprey_halt(void);
extern void nec_osprey_power_off(void);
extern void vr4181_init_serial(void);
extern void vr4181_init_time(void);
void __init bus_error_init(void)
{
}
void __init nec_osprey_setup(void)
{
set_io_port_base(VR4181_PORT_BASE);
isa_slot_offset = VR4181_ISAMEM_BASE;
vr4181_init_serial();
vr4181_init_time();
#ifdef CONFIG_FB
conswitchp = &dummy_con;
#endif
_machine_restart = nec_osprey_restart;
_machine_halt = nec_osprey_halt;
_machine_power_off = nec_osprey_power_off;
/* setup resource limit */
ioport_resource.end = 0xffffffff;
iomem_resource.end = 0xffffffff;
/* [jsun] hack */
/*
printk("[jsun] hack to change external ISA control register, %x -> %x\n",
(*VR4181_XISACTL),
(*VR4181_XISACTL) | 0x2);
*VR4181_XISACTL |= 0x2;
*/
// *VR4181_GPHIBSTH = 0x2000;
// *VR4181_GPMD0REG = 0x00c0;
// *VR4181_GPINTEN = 1<<6;
/* [jsun] I believe this will get the interrupt type right
* for the ether port.
*/
*VR4181_GPINTTYPL = 0x3000;
}
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