diff options
Diffstat (limited to 'arch/mips/lasat/setup.c')
| -rw-r--r-- | arch/mips/lasat/setup.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/arch/mips/lasat/setup.c b/arch/mips/lasat/setup.c new file mode 100644 index 00000000000..e371ed5cbe3 --- /dev/null +++ b/arch/mips/lasat/setup.c @@ -0,0 +1,192 @@ +/* + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved. + * + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * Brian Murphy <brian@murphy.dk> + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * 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., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Lasat specific setup. + */ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/serial_core.h> + +#include <asm/time.h> +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/serial.h> +#include <asm/lasat/lasat.h> +#include <asm/lasat/serial.h> + +#ifdef CONFIG_PICVUE +#include <linux/notifier.h> +#endif + +#include "ds1603.h" +#include <asm/lasat/ds1603.h> +#include <asm/lasat/picvue.h> +#include <asm/lasat/eeprom.h> + +#include "prom.h" + +int lasat_command_line = 0; +void lasatint_init(void); + +extern void lasat_reboot_setup(void); +extern void pcisetup(void); +extern void edhac_init(void *, void *, void *); +extern void addrflt_init(void); + +struct lasat_misc lasat_misc_info[N_MACHTYPES] = { + {(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2}, + {(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6} +}; + +struct lasat_misc *lasat_misc = NULL; + +#ifdef CONFIG_DS1603 +static struct ds_defs ds_defs[N_MACHTYPES] = { + { (void *)DS1603_REG_100, (void *)DS1603_REG_100, + DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100, + DS1603_DATA_SHIFT_100, 0, 0 }, + { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200, + DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200, + DS1603_DATA_READ_SHIFT_200, 1, 2000 } +}; +#endif + +#ifdef CONFIG_PICVUE +#include "picvue.h" +static struct pvc_defs pvc_defs[N_MACHTYPES] = { + { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100, + PVC_E_100, PVC_RW_100, PVC_RS_100 }, + { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200, + PVC_E_200, PVC_RW_200, PVC_RS_200 } +}; +#endif + +static int lasat_panic_display(struct notifier_block *this, + unsigned long event, void *ptr) +{ +#ifdef CONFIG_PICVUE + unsigned char *string = ptr; + if (string == NULL) + string = "Kernel Panic"; + pvc_dump_string(string); +#endif + return NOTIFY_DONE; +} + +static int lasat_panic_prom_monitor(struct notifier_block *this, + unsigned long event, void *ptr) +{ + prom_monitor(); + return NOTIFY_DONE; +} + +static struct notifier_block lasat_panic_block[] = +{ + { lasat_panic_display, NULL, INT_MAX }, + { lasat_panic_prom_monitor, NULL, INT_MIN } +}; + +static void lasat_time_init(void) +{ + mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2; +} + +static void lasat_timer_setup(struct irqaction *irq) +{ + + write_c0_compare( + read_c0_count() + + mips_hpt_frequency / HZ); + change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5); +} + +#define DYNAMIC_SERIAL_INIT +#ifdef DYNAMIC_SERIAL_INIT +void __init serial_init(void) +{ +#ifdef CONFIG_SERIAL_8250 + struct uart_port s; + + memset(&s, 0, sizeof(s)); + + s.flags = STD_COM_FLAGS; + s.iotype = SERIAL_IO_MEM; + + if (mips_machtype == MACH_LASAT_100) { + s.uartclk = LASAT_BASE_BAUD_100 * 16; + s.irq = LASATINT_UART_100; + s.regshift = LASAT_UART_REGS_SHIFT_100; + s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_100); + } else { + s.uartclk = LASAT_BASE_BAUD_200 * 16; + s.irq = LASATINT_UART_200; + s.regshift = LASAT_UART_REGS_SHIFT_200; + s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_200); + } + + if (early_serial_setup(&s) != 0) + printk(KERN_ERR "Serial setup failed!\n"); +#endif +} +#endif + +static int __init lasat_setup(void) +{ + int i; + lasat_misc = &lasat_misc_info[mips_machtype]; +#ifdef CONFIG_PICVUE + picvue = &pvc_defs[mips_machtype]; +#endif + + /* Set up panic notifier */ + for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++) + notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]); + + lasat_reboot_setup(); + + board_time_init = lasat_time_init; + board_timer_setup = lasat_timer_setup; + +#ifdef CONFIG_DS1603 + ds1603 = &ds_defs[mips_machtype]; + rtc_get_time = ds1603_read; + rtc_set_time = ds1603_set; +#endif + +#ifdef DYNAMIC_SERIAL_INIT + serial_init(); +#endif + /* Switch from prom exception handler to normal mode */ + change_c0_status(ST0_BEV,0); + + prom_printf("Lasat specific initialization complete\n"); + + return 0; +} + +early_initcall(lasat_setup); |