---

yaml
---
r: 280003
b: refs/heads/master
c: 93edd02
h: refs/heads/master
i:
  280001: 8c76140
  279999: fa2f501
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f9994894953d6bd9d5ed2719a34d027a4e0c2131
+refs/heads/master: 93edd023a7de1ea4fe6e5de631982b96156eef03

trunk/arch/m68k/Kconfig.debug

@@ -4,7 +4,7 @@ source "lib/Kconfig.debug"
 
 config EARLY_PRINTK
 	bool "Early printk" if EMBEDDED
-	depends on MVME16x
+	depends on MVME16x || MAC
 	default y
 	help
           Write kernel log output directly to a serial port.

trunk/arch/m68k/kernel/head.S

@@ -250,9 +250,8 @@
  * USE_MFP:	Use the ST-MFP port (Modem1) for serial debug.
  *
  * Macintosh constants:
- * MAC_SERIAL_DEBUG:	Turns on serial debug output for the Macintosh.
- * MAC_USE_SCC_A:	Use the SCC port A (modem) for serial debug.
- * MAC_USE_SCC_B:	Use the SCC port B (printer) for serial debug (default).
+ * MAC_USE_SCC_A: Use SCC port A (modem) for serial debug and early console.
+ * MAC_USE_SCC_B: Use SCC port B (printer) for serial debug and early console.
  */
 
 #include <linux/linkage.h>
@@ -268,33 +267,25 @@
 
 #include <asm/machw.h>
 
-/*
- * Macintosh console support
- */
-
 #ifdef CONFIG_FRAMEBUFFER_CONSOLE
 #define CONSOLE
 #define CONSOLE_PENGUIN
 #endif
 
-/*
- * Macintosh serial debug support; outputs boot info to the printer
- *   and/or modem serial ports
- */
-#undef MAC_SERIAL_DEBUG
+#ifdef CONFIG_EARLY_PRINTK
+#define SERIAL_DEBUG
+#else
+#undef SERIAL_DEBUG
+#endif
 
-/*
- * Macintosh serial debug port selection; define one or both;
- *   requires MAC_SERIAL_DEBUG to be defined
- */
-#define MAC_USE_SCC_A		/* Macintosh modem serial port */
-#define MAC_USE_SCC_B		/* Macintosh printer serial port */
+#else /* !CONFIG_MAC */
 
-#endif	/* CONFIG_MAC */
+#define SERIAL_DEBUG
+
+#endif /* !CONFIG_MAC */
 
 #undef MMU_PRINT
 #undef MMU_NOCACHE_KERNEL
-#define SERIAL_DEBUG
 #undef DEBUG
 
 /*
@@ -655,11 +646,11 @@ ENTRY(__start)
 	lea	%pc@(L(mac_rowbytes)),%a1
 	movel	%a0@,%a1@
 
-#ifdef MAC_SERIAL_DEBUG
+#ifdef SERIAL_DEBUG
 	get_bi_record	BI_MAC_SCCBASE
 	lea	%pc@(L(mac_sccbase)),%a1
 	movel	%a0@,%a1@
-#endif /* MAC_SERIAL_DEBUG */
+#endif
 
 #if 0
 	/*
@@ -1427,7 +1418,7 @@ L(mmu_fixup_done):
 	subl	%d0,L(console_font)
 	subl	%d0,L(console_font_data)
 #endif
-#ifdef MAC_SERIAL_DEBUG
+#ifdef SERIAL_DEBUG
 	orl	#0x50000000,L(mac_sccbase)
 #endif
 1:
@@ -1917,7 +1908,7 @@ mmu_030_print:
 	jbne	30b
 
 mmu_print_done:
-	puts	"\n\n"
+	puts	"\n"
 
 func_return	mmu_print
 
@@ -2768,7 +2759,7 @@ L(scc_initable_mac):
 	.byte	9,0		/* no interrupts */
 	.byte	10,0		/* NRZ */
 	.byte	11,0x50		/* use baud rate generator */
-	.byte	12,10,13,0	/* 9600 baud */
+	.byte	12,1,13,0	/* 38400 baud */
 	.byte	14,1		/* Baud rate generator enable */
 	.byte	3,0xc1		/* enable receiver */
 	.byte	5,0xea		/* enable transmitter */
@@ -2906,10 +2897,12 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 #endif
 #ifdef CONFIG_MAC
 	is_not_mac(L(serial_init_not_mac))
-#ifdef MAC_SERIAL_DEBUG
-#if !defined(MAC_USE_SCC_A) && !defined(MAC_USE_SCC_B)
-#define MAC_USE_SCC_B
-#endif
+
+#ifdef SERIAL_DEBUG
+/* You may define either or both of these. */
+#define MAC_USE_SCC_A /* Modem port */
+#define MAC_USE_SCC_B /* Printer port */
+
 #define mac_scc_cha_b_ctrl_offset	0x0
 #define mac_scc_cha_a_ctrl_offset	0x2
 #define mac_scc_cha_b_data_offset	0x4
@@ -2940,7 +2933,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	jra	7b
 8:
 #endif	/* MAC_USE_SCC_B */
-#endif	/* MAC_SERIAL_DEBUG */
+#endif	/* SERIAL_DEBUG */
 
 	jra	L(serial_init_done)
 L(serial_init_not_mac):
@@ -3011,7 +3004,7 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 #ifdef CONFIG_MAC
 	is_not_mac(5f)
 
-#ifdef MAC_SERIAL_DEBUG
+#ifdef SERIAL_DEBUG
 
 #ifdef MAC_USE_SCC_A
 	movel	%pc@(L(mac_sccbase)),%a1
@@ -3029,7 +3022,7 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 	moveb	%d0,%a1@(mac_scc_cha_b_data_offset)
 #endif	/* MAC_USE_SCC_B */
 
-#endif	/* MAC_SERIAL_DEBUG */
+#endif	/* SERIAL_DEBUG */
 
 	jra	L(serial_putc_done)
 5:
@@ -3248,33 +3241,39 @@ func_return	putn
 
 #ifdef CONFIG_MAC
 /*
- *	mac_serial_print
+ *	mac_early_print
  *
  *	This routine takes its parameters on the stack.  It then
- *	turns around and calls the internal routine.  This routine
- *	is used until the Linux console driver initializes itself.
+ *	turns around and calls the internal routines.  This routine
+ *	is used by the boot console.
  *
  *	The calling parameters are:
- *		void mac_serial_print(const char *str);
+ *		void mac_early_print(const char *str, unsigned length);
  *
  *	This routine does NOT understand variable arguments only
  *	simple strings!
  */
-ENTRY(mac_serial_print)
-	moveml	%d0/%a0,%sp@-
-#if 1
-	move	%sr,%sp@-
+ENTRY(mac_early_print)
+	moveml	%d0/%d1/%a0,%sp@-
+	movew	%sr,%sp@-
 	ori	#0x0700,%sr
-#endif
-	movel	%sp@(10),%a0		/* fetch parameter */
+	movel	%sp@(18),%a0		/* fetch parameter */
+	movel	%sp@(22),%d1		/* fetch parameter */
 	jra	2f
-1:	serial_putc	%d0
-2:	moveb	%a0@+,%d0
-	jne	1b
-#if 1
-	move	%sp@+,%sr
+1:
+#ifdef CONSOLE
+	console_putc	%d0
 #endif
-	moveml	%sp@+,%d0/%a0
+#ifdef SERIAL_DEBUG
+	serial_putc	%d0
+#endif
+	subq	#1,%d1
+2:	jeq	3f
+	moveb	%a0@+,%d0
+	jne	1b
+3:
+	movew	%sp@+,%sr
+	moveml	%sp@+,%d0/%d1/%a0
 	rts
 #endif /* CONFIG_MAC */
 
@@ -3409,10 +3408,10 @@ func_start	console_put_stats,%a0/%d7
 	 *		a0 = pointer to boot_info
 	 *		d7 = value of boot_info fields
 	 */
-	puts	"\nMacLinux\n\n"
+	puts	"\nMacLinux\n"
 
 #ifdef SERIAL_DEBUG
-	puts	" vidaddr:"
+	puts	"\n vidaddr:"
 	putn	%pc@(L(mac_videobase))		/* video addr. */
 
 	puts	"\n  _stext:"
@@ -3423,19 +3422,21 @@ func_start	console_put_stats,%a0/%d7
 	lea	%pc@(_end),%a0
 	putn	%a0
 
-	puts	"\ncpuid:"
+	puts	"\n   cpuid:"
 	putn	%pc@(L(cputype))
-	putc	'\n'
 
-#ifdef MAC_SERIAL_DEBUG
+#  ifdef CONFIG_MAC
+	puts	"\n sccbase:"
 	putn	%pc@(L(mac_sccbase))
+#  endif
+#  ifdef MMU_PRINT
 	putc	'\n'
-#endif
-#  if defined(MMU_PRINT)
 	jbsr	mmu_print_machine_cpu_types
-#  endif /* MMU_PRINT */
+#  endif
 #endif /* SERIAL_DEBUG */
 
+	putc	'\n'
+
 func_return	console_put_stats
 
 #ifdef CONSOLE_PENGUIN
@@ -3896,11 +3897,11 @@ L(mac_dimensions):
 	.long	0
 L(mac_rowbytes):
 	.long	0
-#ifdef MAC_SERIAL_DEBUG
+#ifdef SERIAL_DEBUG
 L(mac_sccbase):
 	.long	0
-#endif /* MAC_SERIAL_DEBUG */
 #endif
+#endif /* CONFIG_MAC */
 
 #if defined (CONFIG_APOLLO)
 LSRB0        = 0x10412

trunk/arch/m68k/mac/config.c

@@ -71,6 +71,31 @@ static void mac_get_model(char *str);
 static void mac_identify(void);
 static void mac_report_hardware(void);
 
+#ifdef CONFIG_EARLY_PRINTK
+asmlinkage void __init mac_early_print(const char *s, unsigned n);
+
+static void __init mac_early_cons_write(struct console *con,
+                                 const char *s, unsigned n)
+{
+	mac_early_print(s, n);
+}
+
+static struct console __initdata mac_early_cons = {
+	.name  = "early",
+	.write = mac_early_cons_write,
+	.flags = CON_PRINTBUFFER | CON_BOOT,
+	.index = -1
+};
+
+int __init mac_unregister_early_cons(void)
+{
+	/* mac_early_print can't be used after init sections are discarded */
+	return unregister_console(&mac_early_cons);
+}
+
+late_initcall(mac_unregister_early_cons);
+#endif
+
 static void __init mac_sched_init(irq_handler_t vector)
 {
 	via_init_clock(vector);
@@ -164,6 +189,10 @@ void __init config_mac(void)
 	mach_beep = mac_mksound;
 #endif
 
+#ifdef CONFIG_EARLY_PRINTK
+	register_console(&mac_early_cons);
+#endif
+
 	/*
 	 * Determine hardware present
 	 */