diff options
Diffstat (limited to 'arch/mips/galileo-boards/ev96100/setup.c')
| -rw-r--r-- | arch/mips/galileo-boards/ev96100/setup.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/arch/mips/galileo-boards/ev96100/setup.c b/arch/mips/galileo-boards/ev96100/setup.c new file mode 100644 index 000000000..9292041f8 --- /dev/null +++ b/arch/mips/galileo-boards/ev96100/setup.c @@ -0,0 +1,169 @@ +/* + * + * BRIEF MODULE DESCRIPTION + * Galileo EV96100 setup. + * + * Copyright 2000 MontaVista Software Inc. + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or support@mvista.com + * + * This file was derived from Carsten Langgaard's + * arch/mips/mips-boards/atlas/atlas_setup.c. + * + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/ioport.h> +#include <linux/mc146818rtc.h> + +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/galileo-boards/ev96100.h> +#include <asm/galileo-boards/ev96100int.h> +#include <asm/mipsregs.h> + + +#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_PROM_CONSOLE) +extern void console_setup(char *, int *); +char serial_console[20]; +#endif + +#ifdef CONFIG_REMOTE_DEBUG +extern void rs_kgdb_hook(int); +extern void saa9730_kgdb_hook(void); +extern void breakpoint(void); +static int remote_debug = 0; +static int kgdb_on_pci = 0; +#endif + +void (*board_time_init) (struct irqaction * irq); +extern void ev96100_time_init(struct irqaction *irq); + +extern void mips_reboot_setup(void); +extern struct rtc_ops ev96100_rtc_ops; +extern struct resource ioport_resource; + +static void __init ev96100_irq_setup(void) +{ + puts("ev96100_irq_setup"); + init_IRQ(); + +#ifdef CONFIG_REMOTE_DEBUG + /* If local serial I/O used for debug port, enter kgdb at once */ + /* Otherwise, this will be done after the SAA9730 is up */ + if (remote_debug && !kgdb_on_pci) { + set_debug_traps(); + breakpoint(); + } +#endif +} + + +void __init ev96100_setup(void) +{ + + unsigned long mem_size, free_start, free_end, start_pfn, + bootmap_size; + +#ifdef CONFIG_REMOTE_DEBUG + int rs_putDebugChar(char); + char rs_getDebugChar(void); + int saa9730_putDebugChar(char); + char saa9730_getDebugChar(void); + extern int (*putDebugChar) (char); + extern char (*getDebugChar) (void); +#endif + char *argptr; + + irq_setup = ev96100_irq_setup; + + puts("ev96100_setup"); + puts("config reg:"); + put32(read_32bit_cp0_register(CP0_CONFIG)); + puts(""); + + +#ifdef CONFIG_SERIAL_CONSOLE + argptr = prom_getcmdline(); + if ((argptr = strstr(argptr, "console=ttyS0")) == NULL) { + int i = 0; + char *s = prom_getenv("modetty0"); + while (s[i] >= '0' && s[i] <= '9') + i++; + strcpy(serial_console, "ttyS0,"); + strncpy(serial_console + 6, s, i); + //prom_printf("Config serial console: %s\n", serial_console); + puts("Config serial console: %s\n", serial_console); + console_setup(serial_console, NULL); + } +#endif + +#ifdef CONFIG_REMOTE_DEBUG + argptr = prom_getcmdline(); + if ((argptr = strstr(argptr, "kgdb=ttyS")) != NULL) { + int line; + argptr += strlen("kgdb=ttyS"); + if (*argptr != '0' && *argptr != '1') + printk("KGDB: Uknown serial line /dev/ttyS%c, " + "falling back to /dev/ttyS1\n", *argptr); + line = *argptr == '0' ? 0 : 1; + printk("KGDB: Using serial line /dev/ttyS%d for session\n", + line ? 1 : 0); + + if (line == 0) { + rs_kgdb_hook(line); + putDebugChar = rs_putDebugChar; + getDebugChar = rs_getDebugChar; + } else { + saa9730_kgdb_hook(); + putDebugChar = saa9730_putDebugChar; + getDebugChar = saa9730_getDebugChar; + kgdb_on_pci = 1; + } + + prom_printf + ("KGDB: Using serial line /dev/ttyS%d for session, " + "please connect your debugger\n", line ? 1 : 0); + + remote_debug = 1; + /* Breakpoints and stuff are in ev96100_irq_setup() */ + } +#endif + argptr = prom_getcmdline(); + + board_time_init = ev96100_time_init; + rtc_ops = &ev96100_rtc_ops; + mips_reboot_setup(); + + /* + * reassign the start and end from the statically defined start and + * end in kernel/resource. + */ + ioport_resource.start = GT_PCI_IO_BASE; + //ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE; + ioport_resource.end = 0xB1FFFFFF; /* what a hack! */ +} |