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Commit d6713b40 authored by Roman Zippel's avatar Roman Zippel Committed by Linus Torvalds
Browse files

m68k: early parameter support 



Add early parameter support and convert current users to it.

Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f8744bc9

arch/m68k/amiga/config.c

+22 −19
Original line number Diff line number Diff line
@@ -79,8 +79,6 @@ static char *amiga_models[] __initdata = { 


static char amiga_model_name[13] = "Amiga ";



extern char m68k_debug_device[];



static void amiga_sched_init(irq_handler_t handler);

/* amiga specific irq functions */

extern void amiga_init_IRQ(void);
@@ -95,12 +93,10 @@ static unsigned int amiga_get_ss(void); 
extern void amiga_mksound(unsigned int count, unsigned int ticks);

static void amiga_reset(void);

extern void amiga_init_sound(void);

static void amiga_savekmsg_init(void);

static void amiga_mem_console_write(struct console *co, const char *b,

				    unsigned int count);

void amiga_serial_console_write(struct console *co, const char *s,

				unsigned int count);

static void amiga_debug_init(void);

#ifdef CONFIG_HEARTBEAT

static void amiga_heartbeat(int on);

#endif
@@ -370,7 +366,6 @@ void __init config_amiga(void) 
{

	int i;



	amiga_debug_init();

	amiga_identify();



	/* Yuk, we don't have PCI memory */
@@ -458,17 +453,6 @@ void __init config_amiga(void) 
	/* initialize chipram allocator */

	amiga_chip_init();



	/* debugging using chipram */

	if (!strcmp(m68k_debug_device, "mem")) {

		if (!AMIGAHW_PRESENT(CHIP_RAM))

			printk("Warning: no chipram present for debugging\n");

		else {

			amiga_savekmsg_init();

			amiga_console_driver.write = amiga_mem_console_write;

			register_console(&amiga_console_driver);

		}

	}



	/* our beloved beeper */

	if (AMIGAHW_PRESENT(AMI_AUDIO))

		amiga_init_sound();
@@ -787,17 +771,33 @@ static void amiga_mem_console_write(struct console *co, const char *s, 
	}

}



static void amiga_savekmsg_init(void)

static int __init amiga_savekmsg_setup(char *arg)

{

	static struct resource debug_res = { .name = "Debug" };



	if (!MACH_IS_AMIGA || strcmp(arg, "mem"))

		goto done;



	if (!AMIGAHW_PRESENT(CHIP_RAM)) {

		printk("Warning: no chipram present for debugging\n");

		goto done;

	}



	savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);

	savekmsg->magic1 = SAVEKMSG_MAGIC1;

	savekmsg->magic2 = SAVEKMSG_MAGIC2;

	savekmsg->magicptr = ZTWO_PADDR(savekmsg);

	savekmsg->size = 0;



	amiga_console_driver.write = amiga_mem_console_write;

	register_console(&amiga_console_driver);



done:

	return 0;

}



early_param("debug", amiga_savekmsg_setup);



static void amiga_serial_putc(char c)

{

	amiga_custom.serdat = (unsigned char)c | 0x100;
@@ -872,15 +872,18 @@ void amiga_serial_gets(struct console *co, char *s, int len) 
}

#endif



static void __init amiga_debug_init(void)

static int __init amiga_debug_setup(char *arg)

{

	if (!strcmp(m68k_debug_device, "ser" )) {

	if (MACH_IS_AMIGA && !strcmp(arg, "ser")) {

		/* no initialization required (?) */

		amiga_console_driver.write = amiga_serial_console_write;

		register_console(&amiga_console_driver);

	}

	return 0;

}



early_param("debug", amiga_debug_setup);



#ifdef CONFIG_HEARTBEAT

static void amiga_heartbeat(int on)

{

arch/m68k/atari/config.c

+9 −8
Original line number Diff line number Diff line
@@ -69,9 +69,6 @@ extern int atari_tt_hwclk (int, struct rtc_time *); 
extern int atari_mste_set_clock_mmss (unsigned long);

extern int atari_tt_set_clock_mmss (unsigned long);



/* atari specific debug functions (in debug.c) */

extern void atari_debug_init(void);





/* ++roman: This is a more elaborate test for an SCC chip, since the plain

 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
@@ -137,15 +134,18 @@ int __init atari_parse_bootinfo(const struct bi_record *record) 




/* Parse the Atari-specific switches= option. */

void __init atari_switches_setup(const char *str, unsigned len)

static int __init atari_switches_setup(char *str)

{

	char switches[len+1];

	char switches[strlen(str) + 1];

	char *p;

	int ovsc_shift;

	char *args = switches;



	if (!MACH_IS_ATARI)

		return 0;



	/* copy string to local array, strsep works destructively... */

	strlcpy(switches, str, sizeof(switches));

	strcpy(switches, str);

	atari_switches = 0;



	/* parse the options */
@@ -170,8 +170,11 @@ void __init atari_switches_setup(const char *str, unsigned len) 
			atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;

		}

	}

	return 0;

}



early_param("switches", atari_switches_setup);





    /*

     *  Setup the Atari configuration info
@@ -183,8 +186,6 @@ void __init config_atari(void) 


	memset(&atari_hw_present, 0, sizeof(atari_hw_present));



	atari_debug_init();



	/* Change size of I/O space from 64KB to 4GB. */

	ioport_resource.end  = 0xFFFFFFFF;

arch/m68k/atari/debug.c

+14 −10
Original line number Diff line number Diff line
@@ -19,8 +19,6 @@ 
#include <asm/atarihw.h>

#include <asm/atariints.h>



extern char m68k_debug_device[];



/* Flag that Modem1 port is already initialized and used */

int atari_MFP_init_done;

/* Flag that Modem1 port is already initialized and used */
@@ -305,26 +303,28 @@ void atari_init_midi_port(int cflag) 
		     ACIA_RHTID : ACIA_RLTID);

}



void __init atari_debug_init(void)

static int __init atari_debug_setup(char *arg)

{

	if (!strcmp(m68k_debug_device, "ser")) {

	if (!MACH_IS_ATARI)

		return 0;



	if (!strcmp(arg, "ser"))

		/* defaults to ser2 for a Falcon and ser1 otherwise */

		strcpy(m68k_debug_device, MACH_IS_FALCON ? "ser2" : "ser1");

	}

		arg = MACH_IS_FALCON ? "ser2" : "ser1";



	if (!strcmp(m68k_debug_device, "ser1")) {

	if (!strcmp(arg, "ser1")) {

		/* ST-MFP Modem1 serial port */

		atari_init_mfp_port(B9600|CS8);

		atari_console_driver.write = atari_mfp_console_write;

	} else if (!strcmp(m68k_debug_device, "ser2")) {

	} else if (!strcmp(arg, "ser2")) {

		/* SCC Modem2 serial port */

		atari_init_scc_port(B9600|CS8);

		atari_console_driver.write = atari_scc_console_write;

	} else if (!strcmp(m68k_debug_device, "midi")) {

	} else if (!strcmp(arg, "midi")) {

		/* MIDI port */

		atari_init_midi_port(B9600|CS8);

		atari_console_driver.write = atari_midi_console_write;

	} else if (!strcmp(m68k_debug_device, "par")) {

	} else if (!strcmp(arg, "par")) {

		/* parallel printer */

		atari_turnoff_irq(IRQ_MFP_BUSY); /* avoid ints */

		sound_ym.rd_data_reg_sel = 7;	/* select mixer control */
@@ -337,4 +337,8 @@ void __init atari_debug_init(void) 
	}

	if (atari_console_driver.write)

		register_console(&atari_console_driver);



	return 0;

}



early_param("debug", atari_debug_setup);

arch/m68k/kernel/setup.c

+1 −38
Original line number Diff line number Diff line
@@ -71,9 +71,6 @@ static struct mem_info m68k_ramdisk; 


static char m68k_command_line[CL_SIZE];



char m68k_debug_device[6] = "";

EXPORT_SYMBOL(m68k_debug_device);



void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;

/* machine dependent irq functions */

void (*mach_init_IRQ) (void) __initdata = NULL;
@@ -215,7 +212,6 @@ void __init setup_arch(char **cmdline_p) 
	unsigned long endmem, startmem;

#endif

	int i;

	char *p, *q;



	/* The bootinfo is located right after the kernel bss */

	m68k_parse_bootinfo((const struct bi_record *)&_end);
@@ -258,40 +254,7 @@ void __init setup_arch(char **cmdline_p) 
	*cmdline_p = m68k_command_line;

	memcpy(boot_command_line, *cmdline_p, CL_SIZE);



	/* Parse the command line for arch-specific options.

	 * For the m68k, this is currently only "debug=xxx" to enable printing

	 * certain kernel messages to some machine-specific device.

	 */

	for (p = *cmdline_p; p && *p;) {

		i = 0;

		if (!strncmp(p, "debug=", 6)) {

			strlcpy(m68k_debug_device, p+6, sizeof(m68k_debug_device));

			q = strchr(m68k_debug_device, ' ');

			if (q)

				*q = 0;

			i = 1;

		}

#ifdef CONFIG_ATARI

		/* This option must be parsed very early */

		if (!strncmp(p, "switches=", 9)) {

			extern void atari_switches_setup(const char *, int);

			q = strchr(p + 9, ' ');

			atari_switches_setup(p + 9, q ? (q - (p + 9)) : strlen(p + 9));

			i = 1;

		}

#endif



		if (i) {

			/* option processed, delete it */

			if ((q = strchr(p, ' ')))

				strcpy(p, q + 1);

			else

				*p = 0;

		} else {

			if ((p = strchr(p, ' ')))

				++p;

		}

	}

	parse_early_param();



#ifdef CONFIG_DUMMY_CONSOLE

	conswitchp = &dummy_con;

arch/m68k/mac/config.c

+0 −8
Original line number Diff line number Diff line
@@ -82,10 +82,6 @@ extern void mac_mksound(unsigned int, unsigned int); 


extern void nubus_sweep_video(void);



/* Mac specific debug functions (in debug.c) */

extern void mac_debug_init(void);

extern void mac_debugging_long(int, long);



static void mac_get_model(char *str);



static void mac_sched_init(irq_handler_t vector)
@@ -180,9 +176,6 @@ void __init config_mac(void) 
	mach_halt = mac_poweroff;

	mach_power_off = mac_poweroff;

	mach_max_dma_address = 0xffffffff;

#if 0

	mach_debug_init	= mac_debug_init;

#endif

#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)

	mach_beep = mac_mksound;

#endif
@@ -802,7 +795,6 @@ void mac_identify(void) 
	/* the serial ports set to "Faster" mode in MacOS. */



	iop_preinit();

	mac_debug_init();



	printk(KERN_INFO "Detected Macintosh model: %d \n", model);