diff options
Diffstat (limited to 'arch/parisc/kernel/pdc_cons.c')
| -rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 46 |
1 files changed, 10 insertions, 36 deletions
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 01f676d1673b..215d78c87bc5 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -41,7 +41,7 @@ /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */ -#undef EARLY_BOOTUP_DEBUG +#define EARLY_BOOTUP_DEBUG #include <linux/config.h> @@ -49,14 +49,8 @@ #include <linux/console.h> #include <linux/string.h> #include <linux/init.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/interrupt.h> #include <linux/major.h> #include <linux/tty.h> -#include <asm/page.h> -#include <asm/types.h> -#include <asm/system.h> #include <asm/pdc.h> /* for iodc_call() proto and friends */ @@ -96,7 +90,6 @@ static int pdc_console_setup(struct console *co, char *options) } #if defined(CONFIG_PDC_CONSOLE) -#define PDC_CONSOLE_DEVICE pdc_console_device static struct tty_driver * pdc_console_device (struct console *c, int *index) { extern struct tty_driver console_driver; @@ -104,22 +97,19 @@ static struct tty_driver * pdc_console_device (struct console *c, int *index) return &console_driver; } #else -#define PDC_CONSOLE_DEVICE NULL +#define pdc_console_device NULL #endif static struct console pdc_cons = { .name = "ttyB", .write = pdc_console_write, - .device = PDC_CONSOLE_DEVICE, + .device = pdc_console_device, .setup = pdc_console_setup, - .flags = CON_BOOT|CON_PRINTBUFFER|CON_ENABLED, + .flags = CON_BOOT | CON_PRINTBUFFER | CON_ENABLED, .index = -1, }; static int pdc_console_initialized; -extern unsigned long con_start; /* kernel/printk.c */ -extern unsigned long log_end; /* kernel/printk.c */ - static void pdc_console_init_force(void) { @@ -146,27 +136,11 @@ void __init pdc_console_init(void) } -/* Unregister the pdc console with the printk console layer */ -void pdc_console_die(void) -{ - if (!pdc_console_initialized) - return; - --pdc_console_initialized; - - printk(KERN_INFO "Switching from PDC console\n"); - - /* Don't repeat what we've already printed */ - con_start = log_end; - - unregister_console(&pdc_cons); -} - - /* * Used for emergencies. Currently only used if an HPMC occurs. If an * HPMC occurs, it is possible that the current console may not be - * properly initialed after the PDC IO reset. This routine unregisters all - * of the current consoles, reinitializes the pdc console and + * properly initialised after the PDC IO reset. This routine unregisters + * all of the current consoles, reinitializes the pdc console and * registers it. */ @@ -177,13 +151,13 @@ void pdc_console_restart(void) if (pdc_console_initialized) return; + /* If we've already seen the output, don't bother to print it again */ + if (console_drivers != NULL) + pdc_cons.flags &= ~CON_PRINTBUFFER; + while ((console = console_drivers) != NULL) unregister_console(console_drivers); - /* Don't repeat what we've already printed */ - con_start = log_end; - /* force registering the pdc console */ pdc_console_init_force(); } - |