[MIPS] Fix and cleanup the mess that a dozen prom_printf variants are.

early_printk is a so much saner thing.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -176,7 +176,7 @@ config MACH_DECSTATION
 	bool "DECstations"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
-	select EARLY_PRINTK
+	select SYS_HAS_EARLY_PRINTK
 	select IRQ_CPU
 	select SYS_HAS_CPU_R3000
 	select SYS_HAS_CPU_R4X00
@@ -242,6 +242,7 @@ config MACH_JAZZ
 config LASAT
 	bool "LASAT Networks platforms"
 	select DMA_NONCOHERENT
+	select SYS_HAS_EARLY_PRINTK
 	select HW_HAS_PCI
 	select MIPS_GT64120
 	select MIPS_NILE4
@@ -256,6 +257,7 @@ config MIPS_ATLAS
 	bool "MIPS Atlas board"
 	select BOOT_ELF32
 	select DMA_NONCOHERENT
+	select SYS_HAS_EARLY_PRINTK
 	select IRQ_CPU
 	select HW_HAS_PCI
 	select MIPS_BOARDS_GEN
@@ -301,6 +303,7 @@ config MIPS_MALTA
 	select SYS_HAS_CPU_MIPS64_R1
 	select SYS_HAS_CPU_NEVADA
 	select SYS_HAS_CPU_RM7000
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -316,6 +319,7 @@ config MIPS_SEAD
 	depends on EXPERIMENTAL
 	select IRQ_CPU
 	select DMA_NONCOHERENT
+	select SYS_HAS_EARLY_PRINTK
 	select MIPS_BOARDS_GEN
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_HAS_CPU_MIPS32_R2
@@ -353,9 +357,11 @@ config WR_PPMC
 config MIPS_SIM
 	bool 'MIPS simulator (MIPSsim)'
 	select DMA_NONCOHERENT
+	select SYS_HAS_EARLY_PRINTK
 	select IRQ_CPU
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -376,6 +382,7 @@ config MOMENCO_JAGUAR_ATX
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_RM9000
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -513,6 +520,7 @@ config PMC_YOSEMITE
 	select IRQ_CPU_RM9K
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_RM9000
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -573,6 +581,7 @@ config SGI_IP22
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_R4X00
 	select SYS_HAS_CPU_R5000
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -587,7 +596,7 @@ config SGI_IP27
 	select ARC64
 	select BOOT_ELF64
 	select DMA_IP27
-	select EARLY_PRINTK
+	select SYS_HAS_EARLY_PRINTK
 	select HW_HAS_PCI
 	select NR_CPUS_DEFAULT_64
 	select PCI_DOMAINS
@@ -749,6 +758,7 @@ config SNI_RM
 	select SYS_HAS_CPU_R5000
 	select SYS_HAS_CPU_R10000
 	select R5000_CPU_SCACHE
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -897,6 +907,20 @@ config DMA_NEED_PCI_MAP_STATE
 	bool
 
 config EARLY_PRINTK
+	bool "Early printk" if EMBEDDED && DEBUG_KERNEL
+	depends on SYS_HAS_EARLY_PRINTK
+	default y
+	help
+	  This option enables special console drivers which allow the kernel
+	  to print messages very early in the bootup process.
+
+	  This is useful for kernel debugging when your machine crashes very
+	  early before the console code is initialized. For normal operation
+	  it is not recommended because it looks on some machines ugly and
+	  oesn't cooperate with an X server. You should normally N here,
+	  unless you want to debug such a crash.
+
+config SYS_HAS_EARLY_PRINTK
 	bool
 
 config GENERIC_ISA_DMA
@@ -1033,6 +1057,7 @@ config SOC_PNX8550
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 	select SYS_SUPPORTS_KGDB
@@ -1093,7 +1118,7 @@ config HAVE_STD_PC_SERIAL_PORT
 
 config ARC_CONSOLE
 	bool "ARC console support"
-	depends on SGI_IP22 || SNI_RM
+	depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
 
 config ARC_MEMORY
 	bool

arch/mips/arc/console.c

@@ -29,35 +29,3 @@ void prom_putchar(char c)
 	ArcWrite(1, &it, 1, &cnt);
 	bc_enable();
 }
-
-char prom_getchar(void)
-{
-	ULONG cnt;
-	CHAR c;
-
-	bc_disable();
-	ArcRead(0, &c, 1, &cnt);
-	bc_enable();
-
-	return c;
-}
-
-void prom_printf(char *fmt, ...)
-{
-	va_list args;
-	char ppbuf[1024];
-	char *bptr;
-
-	va_start(args, fmt);
-	vsprintf(ppbuf, fmt, args);
-
-	bptr = ppbuf;
-
-	while (*bptr != 0) {
-		if (*bptr == '\n')
-			prom_putchar('\r');
-
-		prom_putchar(*bptr++);
-	}
-	va_end(args);
-}

arch/mips/arc/init.c

@@ -24,12 +24,15 @@ void __init prom_init(void)
 {
 	PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;
 	romvec = ROMVECTOR;
+	ULONG cnt;
+	CHAR c;
+
 	prom_argc = fw_arg0;
 	_prom_argv = (LONG *) fw_arg1;
 	_prom_envp = (LONG *) fw_arg2;
 
 	if (pb->magic != 0x53435241) {
-		prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
+		printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n", pb->magic);
 		while(1)
 			;
 	}
@@ -41,8 +44,8 @@ void __init prom_init(void)
 	prom_meminit();
 
 #ifdef DEBUG_PROM_INIT
-	prom_printf("Press a key to reboot\n");
-	prom_getchar();
+	pr_info("Press a key to reboot\n");
+	ArcRead(0, &c, 1, &cnt);
 	ArcEnterInteractiveMode();
 #endif
 }

arch/mips/arc/memory.c

@@ -118,10 +118,10 @@ void __init prom_meminit(void)
 #ifdef DEBUG
 	int i = 0;
 
-	prom_printf("ARCS MEMORY DESCRIPTOR dump:\n");
+	printk("ARCS MEMORY DESCRIPTOR dump:\n");
 	p = ArcGetMemoryDescriptor(PROM_NULL_MDESC);
 	while(p) {
-		prom_printf("[%d,%p]: base<%08lx> pages<%08lx> type<%s>\n",
+		printk("[%d,%p]: base<%08lx> pages<%08lx> type<%s>\n",
 		       i, p, p->base, p->pages, mtypes(p->type));
 		p = ArcGetMemoryDescriptor(p);
 		i++;

arch/mips/arc/tree.c

@@ -93,10 +93,10 @@ static char *iflags[] = {
 static void __init
 dump_component(pcomponent *p)
 {
-	prom_printf("[%p]:class<%s>type<%s>flags<%s>ver<%d>rev<%d>",
+	printk("[%p]:class<%s>type<%s>flags<%s>ver<%d>rev<%d>",
 	       p, classes[p->class], types[p->type],
 	       iflags[p->iflags], p->vers, p->rev);
-	prom_printf("key<%08lx>\n\tamask<%08lx>cdsize<%d>ilen<%d>iname<%s>\n",
+	printk("key<%08lx>\n\tamask<%08lx>cdsize<%d>ilen<%d>iname<%s>\n",
 	       p->key, p->amask, (int)p->cdsize, (int)p->ilen, p->iname);
 }
 

arch/mips/cobalt/console.c

@@ -19,29 +19,3 @@ static void putchar(int c)
 
 	COBALT_UART[UART_TX] = c;
 }
-
-static void cons_write(struct console *c, const char *s, unsigned n)
-{
-	while(n-- && *s)
-		putchar(*s++);
-}
-
-static struct console cons_info =
-{
-	.name	= "uart",
-	.write	= cons_write,
-	.flags	= CON_PRINTBUFFER | CON_BOOT,
-	.index	= -1,
-};
-
-void __init cobalt_early_console(void)
-{
-	register_console(&cons_info);
-
-	printk("Cobalt: early console registered\n");
-}
-
-void __init disable_early_printk(void)
-{
-	unregister_console(&cons_info);
-}

arch/mips/cobalt/setup.c

@@ -150,10 +150,6 @@ void __init plat_mem_setup(void)
 #endif
 
 	if (cobalt_board_id > COBALT_BRD_ID_RAQ1) {
-#ifdef CONFIG_EARLY_PRINTK
-		cobalt_early_console();
-#endif
-
 #ifdef CONFIG_SERIAL_8250
 		uart.line	= 0;
 		uart.type	= PORT_UNKNOWN;

arch/mips/dec/prom/console.c

@@ -16,40 +16,12 @@
 
 #include <asm/dec/prom.h>
 
-static void __init prom_console_write(struct console *con, const char *s,
-				      unsigned int c)
+void prom_putchar(char c)
 {
-	static char sfmt[] __initdata = "%%%us";
-	char fmt[13];
+	char s[2];
 
-	snprintf(fmt, sizeof(fmt), sfmt, c);
-	prom_printf(fmt, s);
-}
-
-static struct console promcons __initdata = {
-	.name	= "prom",
-	.write	= prom_console_write,
-	.flags	= CON_PRINTBUFFER,
-	.index	= -1,
-};
-
-static int promcons_output __initdata = 0;
-
-void __init register_prom_console(void)
-{
-	if (!promcons_output) {
-		promcons_output = 1;
-		register_console(&promcons);
-	}
-}
+	s[0] = c;
+	s[1] = '\0';
 
-void __init unregister_prom_console(void)
-{
-	if (promcons_output) {
-		unregister_console(&promcons);
-		promcons_output = 0;
-	}
+	prom_printf( s);
 }
-
-void disable_early_printk(void)
-	__attribute__((alias("unregister_prom_console")));

arch/mips/gt64120/ev64120/promcon.c

@@ -24,11 +24,6 @@ static void prom_console_write(struct console *co, const char *s,
 	}
 }
 
-int prom_getchar(void)
-{
-	return 0;
-}
-
 static struct console sercons = {
     .name	= "ttyS",
     .write	= prom_console_write,

arch/mips/kernel/Makefile

@@ -65,5 +65,6 @@ obj-$(CONFIG_64BIT)		+= cpu-bugs64.o
 obj-$(CONFIG_I8253)		+= i8253.o
 
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)

arch/mips/kernel/early_printk.c

+/*
+ * 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.
+ *
+ * Copyright (C) 2002, 2003, 06, 07 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2007 MIPS Technologies, Inc.
+ *   written by Ralf Baechle (ralf@linux-mips.org)
+ */
+#include <linux/console.h>
+#include <linux/init.h>
+
+extern void prom_putchar(char);
+
+static void early_console_write(struct console *con, const char *s, unsigned n)
+{
+	while (n-- && *s) {
+		if (*s == '\n')
+			prom_putchar('\r');
+		prom_putchar(*s);
+		s++;
+	}
+}
+
+static struct console early_console = {
+	.name	= "early",
+	.write	= early_console_write,
+	.flags	= CON_PRINTBUFFER | CON_BOOT,
+	.index	= -1
+};
+
+void __init setup_early_printk(void)
+{
+	register_console(&early_console);
+}
+
+void __init disable_early_printk(void)
+{
+	unregister_console(&early_console);
+}

arch/mips/kernel/setup.c

@@ -525,6 +525,14 @@ void __init setup_arch(char **cmdline_p)
 {
 	cpu_probe();
 	prom_init();
+
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		extern void setup_early_printk(void);
+
+		setup_early_printk();
+	}
+#endif
 	cpu_report();
 
 #if defined(CONFIG_VT)

arch/mips/lasat/lasat_board.c

@@ -110,12 +110,13 @@ int lasat_init_board_info(void)
 		    sizeof(struct lasat_eeprom_struct) - 4);
 
 	if (crc != lasat_board_info.li_eeprom_info.crc32) {
-		prom_printf("WARNING...\nWARNING...\nEEPROM CRC does not match calculated, attempting to soldier on...\n");
+		printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM CRC does "
+		       "not match calculated, attempting to soldier on...\n");
 	}
 
-	if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION)
-	{
-		prom_printf("WARNING...\nWARNING...\nEEPROM version %d, wanted version %d, attempting to soldier on...\n",
+	if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION) {
+		printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM version "
+		       "%d, wanted version %d, attempting to soldier on...\n",
 		       (unsigned int)lasat_board_info.li_eeprom_info.version,
 		       LASAT_EEPROM_VERSION);
 	}
@@ -124,7 +125,9 @@ int lasat_init_board_info(void)
 	cfg1 = lasat_board_info.li_eeprom_info.cfg[1];
 
 	if ( LASAT_W0_DSCTYPE(cfg0) != 1) {
-		prom_printf("WARNING...\nWARNING...\nInvalid configuration read from EEPROM, attempting to soldier on...");
+		printk(KERN_WARNING "WARNING...\nWARNING...\n"
+		       "Invalid configuration read from EEPROM, attempting to "
+		       "soldier on...");
 	}
 	/* We have a valid configuration */
 

arch/mips/lasat/prom.c

@@ -23,10 +23,6 @@
 #define PROM_PUTC_ADDR		PROM_JUMP_TABLE_ENTRY(1)
 #define PROM_MONITOR_ADDR	PROM_JUMP_TABLE_ENTRY(2)
 
-static void null_prom_printf(const char * fmt, ...)
-{
-}
-
 static void null_prom_display(const char *string, int pos, int clear)
 {
 }
@@ -40,50 +36,29 @@ static void null_prom_putc(char c)
 }
 
 /* these are functions provided by the bootloader */
-static void (* prom_putc)(char c) = null_prom_putc;
-void (* prom_printf)(const char * fmt, ...) = null_prom_printf;
+static void (* __prom_putc)(char c) = null_prom_putc;
+
+void prom_putchar(char c)
+{
+	__prom_putc(c);
+}
+
 void (* prom_display)(const char *string, int pos, int clear) =
 		null_prom_display;
 void (* prom_monitor)(void) = null_prom_monitor;
 
 unsigned int lasat_ndelay_divider;
 
-#define PROM_PRINTFBUF_SIZE 256
-static char prom_printfbuf[PROM_PRINTFBUF_SIZE];
-
-static void real_prom_printf(const char * fmt, ...)
-{
-	va_list ap;
-	int len;
-	char *c = prom_printfbuf;
-	int i;
-
-	va_start(ap, fmt);
-	len = vsnprintf(prom_printfbuf, PROM_PRINTFBUF_SIZE, fmt, ap);
-	va_end(ap);
-
-	/* output overflowed the buffer */
-	if (len < 0 || len > PROM_PRINTFBUF_SIZE)
-		len = PROM_PRINTFBUF_SIZE;
-
-	for (i=0; i < len; i++) {
-		if (*c == '\n')
-			prom_putc('\r');
-		prom_putc(*c++);
-	}
-}
-
 static void setup_prom_vectors(void)
 {
 	u32 version = *(u32 *)(RESET_VECTOR + 0x90);
 
 	if (version >= 307) {
 		prom_display = (void *)PROM_DISPLAY_ADDR;
-		prom_putc = (void *)PROM_PUTC_ADDR;
-		prom_printf = real_prom_printf;
+		__prom_putc = (void *)PROM_PUTC_ADDR;
 		prom_monitor = (void *)PROM_MONITOR_ADDR;
 	}
-	prom_printf("prom vectors set up\n");
+	printk("prom vectors set up\n");
 }
 
 static struct at93c_defs at93c_defs[N_MACHTYPES] = {
@@ -101,11 +76,11 @@ void __init prom_init(void)
 	setup_prom_vectors();
 
 	if (current_cpu_data.cputype == CPU_R5000) {
-	        prom_printf("LASAT 200 board\n");
+	        printk("LASAT 200 board\n");
 		mips_machtype = MACH_LASAT_200;
                 lasat_ndelay_divider = LASAT_200_DIVIDER;
         } else {
-	        prom_printf("LASAT 100 board\n");
+	        printk("LASAT 100 board\n");
 		mips_machtype = MACH_LASAT_100;
                 lasat_ndelay_divider = LASAT_100_DIVIDER;
         }

arch/mips/lasat/prom.h

@@ -2,5 +2,4 @@
 #define PROM_H
 extern void (* prom_display)(const char *string, int pos, int clear);
 extern void (* prom_monitor)(void);
-extern void (* prom_printf)(const char * fmt, ...);
 #endif

arch/mips/lasat/setup.c

@@ -178,5 +178,5 @@ void __init plat_mem_setup(void)
 	/* Switch from prom exception handler to normal mode */
 	change_c0_status(ST0_BEV,0);
 
-	prom_printf("Lasat specific initialization complete\n");
+	pr_info("Lasat specific initialization complete\n");
 }

arch/mips/lib/Makefile

@@ -2,8 +2,8 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y	+= csum_partial.o memcpy.o memcpy-inatomic.o memset.o promlib.o \
-	   strlen_user.o strncpy_user.o strnlen_user.o uncached.o
+lib-y	+= csum_partial.o memcpy.o memcpy-inatomic.o memset.o strlen_user.o \
+	   strncpy_user.o strnlen_user.o uncached.o
 
 obj-y			+= iomap.o
 obj-$(CONFIG_PCI)	+= iomap-pci.o

arch/mips/lib/promlib.c

-#include <stdarg.h>
-#include <linux/kernel.h>
-
-extern void prom_putchar(char);
-
-void prom_printf(char *fmt, ...)
-{
-	va_list args;
-	char ppbuf[1024];
-	char *bptr;
-
-	va_start(args, fmt);
-	vsprintf(ppbuf, fmt, args);
-
-	bptr = ppbuf;
-
-	while (*bptr != 0) {
-		if (*bptr == '\n')
-			prom_putchar('\r');
-
-		prom_putchar(*bptr++);
-	}
-	va_end(args);
-}

arch/mips/mips-boards/generic/Makefile

@@ -18,7 +18,9 @@
 # Makefile for the MIPS boards generic routines under Linux.
 #
 
-obj-y				:= reset.o display.o init.o memory.o printf.o \
+obj-y				:= reset.o display.o init.o memory.o \
 				   cmdline.o time.o
+
+obj-$(CONFIG_EARLY_PRINTK)	+= console.o
 obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_KGDB)		+= gdb_hook.o

arch/mips/mips-boards/generic/printf.c → arch/mips/mips-boards/generic/console.c

@@ -17,10 +17,9 @@
  *
  * Putting things on the screen/serial line using YAMONs facilities.
  */
+#include <linux/console.h>
 #include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/serial_reg.h>
-#include <linux/spinlock.h>
 #include <asm/io.h>
 
 #ifdef CONFIG_MIPS_ATLAS
@@ -67,12 +66,3 @@ int prom_putchar(char c)
 
 	return 1;
 }
-
-char prom_getchar(void)
-{
-	while (!(serial_in(UART_LSR) & UART_LSR_DR))
-		;
-
-	return serial_in(UART_RX);
-}
-

arch/mips/mips-boards/generic/init.c

@@ -167,7 +167,7 @@ static void __init console_config(void)
 			flow = 'r';
 		sprintf (console_string, " console=ttyS0,%d%c%c%c", baud, parity, bits, flow);
 		strcat (prom_getcmdline(), console_string);
-		prom_printf("Config serial console:%s\n", console_string);
+		pr_info("Config serial console:%s\n", console_string);
 	}
 }
 #endif
@@ -210,8 +210,9 @@ void __init kgdb_config (void)
 			generic_getDebugChar = rs_getDebugChar;
 		}
 
-		prom_printf("KGDB: Using serial line /dev/ttyS%d at %d for session, "
-			    "please connect your debugger\n", line ? 1 : 0, speed);
+		pr_info("KGDB: Using serial line /dev/ttyS%d at %d for "
+		        "session, please connect your debugger\n",
+		        line ? 1 : 0, speed);
 
 		{
 			char *s;
@@ -382,7 +383,7 @@ void __init prom_init(void)
 	board_nmi_handler_setup = mips_nmi_setup;
 	board_ejtag_handler_setup = mips_ejtag_setup;
 
-	prom_printf("\nLINUX started...\n");
+	pr_info("\nLINUX started...\n");
 	prom_init_cmdline();
 	prom_meminit();
 #ifdef CONFIG_SERIAL_8250_CONSOLE

arch/mips/mips-boards/generic/memory.c

@@ -59,11 +59,12 @@ struct prom_pmemblock * __init prom_getmdesc(void)
 	/* otherwise look in the environment */
 	memsize_str = prom_getenv("memsize");
 	if (!memsize_str) {
-		prom_printf("memsize not set in boot prom, set to default (32Mb)\n");
+		printk(KERN_WARNING
+		       "memsize not set in boot prom, set to default (32Mb)\n");
 		physical_memsize = 0x02000000;
 	} else {
 #ifdef DEBUG
-		prom_printf("prom_memsize = %s\n", memsize_str);
+		pr_debug("prom_memsize = %s\n", memsize_str);
 #endif
 		physical_memsize = simple_strtol(memsize_str, NULL, 0);
 	}
@@ -141,11 +142,11 @@ void __init prom_meminit(void)
 	struct prom_pmemblock *p;
 
 #ifdef DEBUG
-	prom_printf("YAMON MEMORY DESCRIPTOR dump:\n");
+	pr_debug("YAMON MEMORY DESCRIPTOR dump:\n");
 	p = prom_getmdesc();
 	while (p->size) {
 		int i = 0;
-		prom_printf("[%d,%p]: base<%08lx> size<%08lx> type<%s>\n",
+		pr_debug("[%d,%p]: base<%08lx> size<%08lx> type<%s>\n",
 			 i, p, p->base, p->size, mtypes[p->type]);
 		p++;
 		i++;

arch/mips/mips-boards/sim/Makefile

 #
 # Copyright (C) 2005 MIPS Technologies, Inc.  All rights reserved.
+# Copyright (C) 2007 MIPS Technologies, Inc.
+#   written by Ralf Baechle (ralf@linux-mips.org)
 #
 # 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
@@ -15,5 +17,7 @@
 # 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 #
 
-obj-y := sim_setup.o sim_mem.o sim_time.o sim_printf.o sim_int.o sim_cmdline.o
+obj-y := sim_setup.o sim_mem.o sim_time.o sim_int.o sim_cmdline.o
+
+obj-$(CONFIG_EARLY_PRINTK) += sim_console.o
 obj-$(CONFIG_SMP) += sim_smp.o

arch/mips/mips-boards/sim/sim_printf.c → arch/mips/mips-boards/sim/sim_console.c

 /*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- *
  *  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.
@@ -15,14 +12,14 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  *
- * Putting things on the screen/serial line using YAMONs facilities.
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ * Copyright (C) 2007 MIPS Technologies, Inc.
+ *   written by Ralf Baechle
  */
 #include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/serial_reg.h>
-#include <linux/spinlock.h>
 #include <asm/io.h>
-#include <asm/system.h>
 
 static inline unsigned int serial_in(int offset)
 {
@@ -34,41 +31,10 @@ static inline void serial_out(int offset, int value)
 	outb(value, 0x3f8 + offset);
 }
 
-int putPromChar(char c)
+void __init prom_putchar(char c)
 {
 	while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
 		;
 
 	serial_out(UART_TX, c);
-
-	return 1;
-}
-
-char getPromChar(void)
-{
-	while (!(serial_in(UART_LSR) & 1))
-		;
-
-	return serial_in(UART_RX);
-}
-
-void prom_printf(char *fmt, ...)
-{
-	va_list args;
-	int l;
-	char *p, *buf_end;
-	char buf[1024];
-
-	va_start(args, fmt);
-	l = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf) */
-	va_end(args);
-
-	buf_end = buf + l;
-
-	for (p = buf; p < buf_end; p++) {
-		/* Crude cr/nl handling is better than none */
-		if (*p == '\n')
-			putPromChar('\r');
-		putPromChar(*p);
-	}
 }

arch/mips/mips-boards/sim/sim_mem.c

@@ -46,7 +46,7 @@ struct prom_pmemblock * __init prom_getmdesc(void)
 	unsigned int memsize;
 
 	memsize = 0x02000000;
-	prom_printf("Setting default memory size 0x%08x\n", memsize);
+	pr_info("Setting default memory size 0x%08x\n", memsize);
 
 	memset(mdesc, 0, sizeof(mdesc));
 

arch/mips/mips-boards/sim/sim_setup.c

@@ -55,7 +55,7 @@ void __init plat_mem_setup(void)
 	serial_init();
 
 	board_time_init = sim_time_init;
-	prom_printf("Linux started...\n");
+	pr_info("Linux started...\n");
 
 #ifdef CONFIG_MIPS_MT_SMP
 	sanitize_tlb_entries();
@@ -66,7 +66,7 @@ void prom_init(void)
 {
 	set_io_port_base(0xbfd00000);
 
-	prom_printf("\nLINUX started...\n");
+	pr_info("\nLINUX started...\n");
 	prom_init_cmdline();
 	prom_meminit();
 }
@@ -91,7 +91,7 @@ static void __init serial_init(void)
 	s.timeout = 4;
 
 	if (early_serial_setup(&s) != 0) {
-		prom_printf(KERN_ERR "Serial setup failed!\n");
+		printk(KERN_ERR "Serial setup failed!\n");
 	}
 
 #endif

arch/mips/momentum/jaguar_atx/ja-console.c

@@ -74,11 +74,6 @@ void prom_putchar(char c)
 	uart->iu_thr = c;
 }
 
-char __init prom_getchar(void)
-{
-	return 0;
-}
-
 static void inline ja_console_probe(void)
 {
 	struct uart_port up;

arch/mips/philips/pnx8550/common/prom.c

@@ -112,7 +112,7 @@ void __init prom_free_prom_memory(void)
 
 extern int pnx8550_console_port;
 
-/* used by prom_printf */
+/* used by early printk */
 void prom_putchar(char c)
 {
 	if (pnx8550_console_port != -1) {

arch/mips/philips/pnx8550/common/setup.c

@@ -41,8 +41,6 @@
 #include <uart.h>
 #include <nand.h>
 
-extern void prom_printf(char *fmt, ...);
-
 extern void __init board_setup(void);
 extern void pnx8550_machine_restart(char *);
 extern void pnx8550_machine_halt(void);
@@ -51,7 +49,6 @@ extern struct resource ioport_resource;
 extern struct resource iomem_resource;
 extern void pnx8550_time_init(void);
 extern void rs_kgdb_hook(int tty_no);
-extern void prom_printf(char *fmt, ...);
 extern char *prom_getcmdline(void);
 
 struct resource standard_io_resources[] = {
@@ -141,7 +138,7 @@ void __init plat_mem_setup(void)
 		argptr += strlen("console=ttyS");
 		pnx8550_console_port = *argptr == '0' ? 0 : 1;
 
-		/* We must initialize the UART (console) before prom_printf */
+		/* We must initialize the UART (console) before early printk */
 		/* Set LCR to 8-bit and BAUD to 38400 (no 5)                */
 		ip3106_lcr(UART_BASE, pnx8550_console_port) =
 			PNX8XXX_UART_LCR_8BIT;
@@ -155,7 +152,7 @@ void __init plat_mem_setup(void)
 		argptr += strlen("kgdb=ttyS");
 		line = *argptr == '0' ? 0 : 1;
 		rs_kgdb_hook(line);
-		prom_printf("KGDB: Using ttyS%i for session, "
+		pr_info("KGDB: Using ttyS%i for session, "
 		        "please connect your debugger\n", line ? 1 : 0);
 	}
 #endif

arch/mips/pmc-sierra/yosemite/py-console.c

@@ -107,8 +107,3 @@ void prom_putchar(char c)
 	while ((readb_outer_space(lsr) & 0x20) == 0);
 	writeb_outer_space(thr, c);
 }
-
-char __init prom_getchar(void)
-{
-	return 0;
-}

arch/mips/sgi-ip27/ip27-console.c

@@ -6,12 +6,6 @@
  * Copyright (C) 2001, 2002 Ralf Baechle
  */
 #include <linux/init.h>
-#include <linux/console.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/termios.h>
-#include <linux/sched.h>
-#include <linux/tty.h>
 
 #include <asm/page.h>
 #include <asm/semaphore.h>
@@ -38,37 +32,10 @@ static inline struct ioc3_uartregs *console_uart(void)
 	return &ioc3->sregs.uarta;
 }
 
-void prom_putchar(char c)
+void __init prom_putchar(char c)
 {
 	struct ioc3_uartregs *uart = console_uart();
 
 	while ((uart->iu_lsr & 0x20) == 0);
 	uart->iu_thr = c;
 }
-
-static void ioc3_console_write(struct console *con, const char *s, unsigned n)
-{
-	while (n-- && *s) {
-		if (*s == '\n')
-			prom_putchar('\r');
-		prom_putchar(*s);
-		s++;
-	}
-}
-
-static struct console ioc3_console = {
-	.name	= "ioc3",
-	.write	= ioc3_console_write,
-	.flags	= CON_PRINTBUFFER | CON_BOOT,
-	.index	= -1
-};
-
-__init void ip27_setup_console(void)
-{
-	register_console(&ioc3_console);
-}
-
-void __init disable_early_printk(void)
-{
-	unregister_console(&ioc3_console);
-}

arch/mips/sibyte/Kconfig

@@ -116,6 +116,7 @@ config SB1_CERR_STALL
 config SIBYTE_CFE
 	bool "Booting from CFE"
 	depends on SIBYTE_SB1xxx_SOC
+	select SYS_HAS_EARLY_PRINTK
 	help
 	  Make use of the CFE API for enumerating available memory,
 	  controlling secondary CPUs, and possibly console output.
@@ -131,6 +132,7 @@ config SIBYTE_CFE_CONSOLE
 config SIBYTE_STANDALONE
 	bool
 	depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
+	select SYS_HAS_EARLY_PRINTK
 	default y
 
 config SIBYTE_STANDALONE_RAM_SIZE

arch/mips/sibyte/bcm1480/irq.c

@@ -420,7 +420,7 @@ void __init arch_init_irq(void)
 #ifdef CONFIG_GDB_CONSOLE
 		register_gdb_console();
 #endif
-		prom_printf("Waiting for GDB on UART port %d\n", kgdb_port);
+		printk("Waiting for GDB on UART port %d\n", kgdb_port);
 		set_debug_traps();
 		breakpoint();
 	}

arch/mips/sibyte/bcm1480/setup.c

@@ -69,7 +69,7 @@ static inline int sys_rev_decode(void)
 		break;
 
 	    default:
-		prom_printf("Unknown part type %x\n", part_type);
+		printk("Unknown part type %x\n", part_type);
 		ret = 1;
 		break;
 	}
@@ -102,7 +102,7 @@ static inline int setup_bcm1x80_bcm1x55(void)
 		pass_str = "B0 (pass2)";
 		break;
 	    default:
-		prom_printf("Unknown %s rev %x\n", soc_str, soc_pass);
+		printk("Unknown %s rev %x\n", soc_str, soc_pass);
 		periph_rev = 1;
 		pass_str = "Unknown Revision";
 		break;
@@ -122,14 +122,14 @@ void bcm1480_setup(void)
 	soc_pass = G_SYS_REVISION(sys_rev);
 
 	if (sys_rev_decode()) {
-		prom_printf("Restart after failure to identify SiByte chip\n");
+		printk("Restart after failure to identify SiByte chip\n");
 		machine_restart(NULL);
 	}
 
 	plldiv = G_BCM1480_SYS_PLL_DIV(__raw_readq(IOADDR(A_SCD_SYSTEM_CFG)));
 	zbbus_mhz = ((plldiv >> 1) * 50) + ((plldiv & 1) * 25);
 
-	prom_printf("Broadcom SiByte %s %s @ %d MHz (SB-1A rev %d)\n",
+	printk("Broadcom SiByte %s %s @ %d MHz (SB-1A rev %d)\n",
 		    soc_str, pass_str, zbbus_mhz * 2, sb1_pass);
-	prom_printf("Board type: %s\n", get_system_type());
+	printk("Board type: %s\n", get_system_type());
 }

arch/mips/sibyte/cfe/setup.c

@@ -221,10 +221,10 @@ static int __init initrd_setup(char *str)
 		goto fail;
 	}
 	initrd_end = initrd_start + initrd_size;
-	prom_printf("Found initrd of %lx@%lx\n", initrd_size, initrd_start);
+	printk("Found initrd of %lx@%lx\n", initrd_size, initrd_start);
 	return 1;
  fail:
-	prom_printf("Bad initrd argument.  Disabling initrd\n");
+	printk("Bad initrd argument.  Disabling initrd\n");
 	initrd_start = 0;
 	initrd_end = 0;
 	return 1;
@@ -281,7 +281,7 @@ void __init prom_init(void)
 	}
 	if (cfe_eptseal != CFE_EPTSEAL) {
 		/* too early for panic to do any good */
-		prom_printf("CFE's entrypoint seal doesn't match. Spinning.");
+		printk("CFE's entrypoint seal doesn't match. Spinning.");
 		while (1) ;
 	}
 	cfe_init(cfe_handle, cfe_ept);
@@ -303,7 +303,7 @@ void __init prom_init(void)
 		} else {
 			/* The loader should have set the command line */
 			/* too early for panic to do any good */
-			prom_printf("LINUX_CMDLINE not defined in cfe.");
+			printk("LINUX_CMDLINE not defined in cfe.");
 			while (1) ;
 		}
 	}

arch/mips/sibyte/sb1250/setup.c

@@ -67,7 +67,7 @@ static int __init sys_rev_decode(void)
 		ret = setup_bcm112x();
 		break;
 	default:
-		prom_printf("Unknown SOC type %x\n", soc_type);
+		printk("Unknown SOC type %x\n", soc_type);
 		ret = 1;
 		break;
 	}
@@ -112,7 +112,7 @@ static int __init setup_bcm1250(void)
 			pass_str = "A0-A6";
 			war_pass = K_SYS_REVISION_BCM1250_PASS2;
 		} else {
-			prom_printf("Unknown BCM1250 rev %x\n", soc_pass);
+			printk("Unknown BCM1250 rev %x\n", soc_pass);
 			ret = 1;
 		}
 		break;
@@ -140,7 +140,7 @@ static int __init setup_bcm112x(void)
 		pass_str = "A2";
 		break;
 	default:
-		prom_printf("Unknown %s rev %x\n", soc_str, soc_pass);
+		printk("Unknown %s rev %x\n", soc_str, soc_pass);
 		ret = 1;
 	}
 	return ret;
@@ -158,21 +158,21 @@ void __init sb1250_setup(void)
 	soc_pass = G_SYS_REVISION(sys_rev);
 
 	if (sys_rev_decode()) {
-		prom_printf("Restart after failure to identify SiByte chip\n");
+		printk("Restart after failure to identify SiByte chip\n");
 		machine_restart(NULL);
 	}
 
 	plldiv = G_SYS_PLL_DIV(__raw_readq(IOADDR(A_SCD_SYSTEM_CFG)));
 	zbbus_mhz = ((plldiv >> 1) * 50) + ((plldiv & 1) * 25);
 
-	prom_printf("Broadcom SiByte %s %s @ %d MHz (SB1 rev %d)\n",
+	printk("Broadcom SiByte %s %s @ %d MHz (SB1 rev %d)\n",
 		    soc_str, pass_str, zbbus_mhz * 2, sb1_pass);
-	prom_printf("Board type: %s\n", get_system_type());
+	printk("Board type: %s\n", get_system_type());
 
 	switch (war_pass) {
 	case K_SYS_REVISION_BCM1250_PASS1:
 #ifndef CONFIG_SB1_PASS_1_WORKAROUNDS
-		prom_printf("@@@@ This is a BCM1250 A0-A2 (Pass 1) board, "
+		printk("@@@@ This is a BCM1250 A0-A2 (Pass 1) board, "
 		            "and the kernel doesn't have the proper "
 		            "workarounds compiled in. @@@@\n");
 		bad_config = 1;
@@ -182,27 +182,27 @@ void __init sb1250_setup(void)
 		/* Pass 2 - easiest as default for now - so many numbers */
 #if !defined(CONFIG_SB1_PASS_2_WORKAROUNDS) || \
     !defined(CONFIG_SB1_PASS_2_1_WORKAROUNDS)
-		prom_printf("@@@@ This is a BCM1250 A3-A10 board, and the "
+		printk("@@@@ This is a BCM1250 A3-A10 board, and the "
 		            "kernel doesn't have the proper workarounds "
 		            "compiled in. @@@@\n");
 		bad_config = 1;
 #endif
 #ifdef CONFIG_CPU_HAS_PREFETCH
-		prom_printf("@@@@ Prefetches may be enabled in this kernel, "
+		printk("@@@@ Prefetches may be enabled in this kernel, "
 		            "but are buggy on this board.  @@@@\n");
 		bad_config = 1;
 #endif
 		break;
 	case K_SYS_REVISION_BCM1250_PASS2_2:
 #ifndef CONFIG_SB1_PASS_2_WORKAROUNDS
-		prom_printf("@@@@ This is a BCM1250 B1/B2. board, and the "
+		printk("@@@@ This is a BCM1250 B1/B2. board, and the "
 		            "kernel doesn't have the proper workarounds "
 		            "compiled in. @@@@\n");
 		bad_config = 1;
 #endif
 #if defined(CONFIG_SB1_PASS_2_1_WORKAROUNDS) || \
     !defined(CONFIG_CPU_HAS_PREFETCH)
-		prom_printf("@@@@ This is a BCM1250 B1/B2, but the kernel is "
+		printk("@@@@ This is a BCM1250 B1/B2, but the kernel is "
 		            "conservatively configured for an 'A' stepping. "
 		            "@@@@\n");
 #endif
@@ -211,7 +211,7 @@ void __init sb1250_setup(void)
 		break;
 	}
 	if (bad_config) {
-		prom_printf("Invalid configuration for this chip.\n");
+		printk("Invalid configuration for this chip.\n");
 		machine_restart(NULL);
 	}
 }

arch/mips/sni/sniprom.c

@@ -9,6 +9,8 @@
  * Copyright (C) 2005-2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
  */
 
+#define DEBUG
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/string.h>
@@ -32,14 +34,13 @@
 #define PROM_ENTRY(x)		(PROM_VEC + (x))
 
 
-#define DEBUG
-#ifdef DEBUG
-#define DBG_PRINTF(x...)     prom_printf(x)
-#else
-#define DBG_PRINTF(x...)
-#endif
-
 static int *(*__prom_putchar)(int)        = (int *(*)(int))PROM_ENTRY(PROM_PUTCHAR);
+
+void prom_putchar(char c)
+{
+	__prom_putchar(c);
+}
+
 static char *(*__prom_getenv)(char *)     = (char *(*)(char *))PROM_ENTRY(PROM_GETENV);
 static void (*__prom_get_memconf)(void *) = (void (*)(void *))PROM_ENTRY(PROM_GET_MEMCONF);
 
@@ -48,26 +49,6 @@ char *prom_getenv (char *s)
 	return __prom_getenv(s);
 }
 
-void prom_printf(char *fmt, ...)
-{
-	va_list args;
-	char ppbuf[1024];
-	char *bptr;
-
-	va_start(args, fmt);
-	vsprintf(ppbuf, fmt, args);
-
-	bptr = ppbuf;
-
-	while (*bptr != 0) {
-		if (*bptr == '\n')
-			__prom_putchar('\r');
-
-		__prom_putchar(*bptr++);
-	}
-	va_end(args);
-}
-
 void __init prom_free_prom_memory(void)
 {
 }
@@ -94,15 +75,15 @@ static void sni_idprom_dump(void)
 {
 	int	i;
 
-	prom_printf("SNI IDProm dump:\n");
+	pr_debug("SNI IDProm dump:\n");
 	for (i = 0; i < 256; i++) {
 		if (i%16 == 0)
-			prom_printf("%04x ", i);
+			pr_debug("%04x ", i);
 
-		prom_printf("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
+		printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
 
 		if (i % 16 == 15)
-			prom_printf("\n");
+			printk("\n");
 	}
 }
 #endif
@@ -121,12 +102,12 @@ static void sni_mem_init(void )
 	/* MemSIZE from prom in 16MByte chunks */
 	memsize = *((unsigned char *) SNI_IDPROM_MEMSIZE) * 16;
 
-	DBG_PRINTF("IDProm memsize: %lu MByte\n", memsize);
+	pr_debug("IDProm memsize: %lu MByte\n", memsize);
 
 	/* get memory bank layout from prom */
 	__prom_get_memconf(&memconf);
 
-	DBG_PRINTF("prom_get_mem_conf memory configuration:\n");
+	pr_debug("prom_get_mem_conf memory configuration:\n");
 	for (i = 0;i < 8 && memconf[i].size; i++) {
 		if (sni_brd_type == SNI_BRD_PCI_TOWER ||
 		    sni_brd_type == SNI_BRD_PCI_TOWER_CPLUS) {
@@ -135,7 +116,7 @@ static void sni_mem_init(void )
 				memconf[i].base -= 0x20000000;
 			}
 	}
-		DBG_PRINTF("Bank%d: %08x @ %08x\n", i,
+		pr_debug("Bank%d: %08x @ %08x\n", i,
 			memconf[i].size, memconf[i].base);
 		add_memory_region(memconf[i].base, memconf[i].size, BOOT_MEM_RAM);
 	}
@@ -248,7 +229,7 @@ void __init prom_init(void)
 	        systype = "RM300-Exx";
 	        break;
 	}
-	DBG_PRINTF("Found SNI brdtype %02x name %s\n", sni_brd_type,systype);
+	pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type,systype);
 
 #ifdef DEBUG
 	sni_idprom_dump();

include/asm-mips/lasat/lasat.h

@@ -237,8 +237,6 @@ static inline void lasat_ndelay(unsigned int ns)
             __delay(ns / lasat_ndelay_divider);
 }
 
-extern void (* prom_printf)(const char *fmt, ...);
-
 #endif /* !defined (_LANGUAGE_ASSEMBLY) */
 
 #define LASAT_SERVICEMODE_MAGIC_1     0xdeadbeef

include/asm-mips/mips-boards/prom.h

@@ -28,8 +28,6 @@
 
 extern char *prom_getcmdline(void);
 extern char *prom_getenv(char *name);
-extern void setup_prom_printf(int tty_no);
-extern void prom_printf(char *fmt, ...);
 extern void prom_init_cmdline(void);
 extern void prom_meminit(void);
 extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem);

include/asm-mips/sgialib.h

@@ -33,9 +33,6 @@ extern int prom_flags;
 extern void prom_putchar(char c);
 extern char prom_getchar(void);
 
-/* Generic printf() using ARCS console I/O. */
-extern void prom_printf(char *fmt, ...);
-
 /* Memory descriptor management. */
 #define PROM_MAX_PMEMBLOCKS    32
 struct prom_pmemblock {

include/asm-mips/sibyte/sb1250.h

@@ -57,8 +57,6 @@ extern void bcm1480_mask_irq(int cpu, int irq);
 extern void bcm1480_unmask_irq(int cpu, int irq);
 extern void bcm1480_smp_finish(void);
 
-extern void prom_printf(char *fmt, ...);
-
 #define AT_spin \
 	__asm__ __volatile__ (		\
 		".set noat\n"		\