Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/…

…davem/sparc-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: fix section mismatch warning in mdesc.c
  [SPARC64]: fix section mismatch warning in pci_sunv4
  [SPARC64]: Stop using drivers/char/rtc.c
  [SPARC64]: Convert parport to of_platform_driver.
  [SPARC]: Implement fb_is_primary_device().
  [SPARC64]: Fix virq decomposition.
  [SPARC64]: Use KERN_ERR in IRQ manipulation error printks.
  [SPARC64]: Do not flood log with failed DS messages.
  [SPARC64]: Add proper multicast support to VNET driver.
  [SPARC64]: Handle multiple domain-services-port nodes properly.
  [SPARC64]: Improve VIO device naming further.
  [SPARC]: Make sure dev_archdata is filled in for all devices.
  [SPARC]: Define minimal struct dev_archdata, similarly to sparc64.
  [SPARC]: Fix serial console device detection.

arch/sparc/kernel/ebus.c

@@ -148,6 +148,7 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d
 {
 	const struct linux_prom_registers *regs;
 	struct linux_ebus_child *child;
+	struct dev_archdata *sd;
 	const int *irqs;
 	int i, n, len;
 	unsigned long baseaddr;
@@ -234,6 +235,10 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d
 		}
 	}
 
+	sd = &dev->ofdev.dev.archdata;
+	sd->prom_node = dp;
+	sd->op = &dev->ofdev;
+
 	dev->ofdev.node = dp;
 	dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
 	dev->ofdev.dev.bus = &ebus_bus_type;

arch/sparc/kernel/of_device.c

@@ -420,11 +420,16 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
 {
 	struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
 	const struct linux_prom_irqs *intr;
+	struct dev_archdata *sd;
 	int len, i;
 
 	if (!op)
 		return NULL;
 
+	sd = &op->dev.archdata;
+	sd->prom_node = dp;
+	sd->op = op;
+
 	op->node = dp;
 
 	op->clock_freq = of_getintprop_default(dp, "clock-frequency",

arch/sparc/kernel/process.c

@@ -39,6 +39,7 @@
 #include <asm/processor.h>
 #include <asm/psr.h>
 #include <asm/elf.h>
+#include <asm/prom.h>
 #include <asm/unistd.h>
 
 /* 
@@ -150,7 +151,7 @@ void machine_halt(void)
 	local_irq_enable();
 	mdelay(8);
 	local_irq_disable();
-	if (!serial_console && prom_palette)
+	if (prom_palette)
 		prom_palette (1);
 	prom_halt();
 	panic("Halt failed!");
@@ -166,7 +167,7 @@ void machine_restart(char * cmd)
 
 	p = strchr (reboot_command, '\n');
 	if (p) *p = 0;
-	if (!serial_console && prom_palette)
+	if (prom_palette)
 		prom_palette (1);
 	if (cmd)
 		prom_reboot(cmd);
@@ -179,7 +180,8 @@ void machine_restart(char * cmd)
 void machine_power_off(void)
 {
 #ifdef CONFIG_SUN_AUXIO
-	if (auxio_power_register && (!serial_console || scons_pwroff))
+	if (auxio_power_register &&
+	    (strcmp(of_console_device->type, "serial") || scons_pwroff))
 		*auxio_power_register |= AUXIO_POWER_OFF;
 #endif
 	machine_halt();

arch/sparc/kernel/prom.c

@@ -397,6 +397,135 @@ static struct device_node * __init build_tree(struct device_node *parent, phandl
 	return dp;
 }
 
+struct device_node *of_console_device;
+EXPORT_SYMBOL(of_console_device);
+
+char *of_console_path;
+EXPORT_SYMBOL(of_console_path);
+
+char *of_console_options;
+EXPORT_SYMBOL(of_console_options);
+
+extern void restore_current(void);
+
+static void __init of_console_init(void)
+{
+	char *msg = "OF stdout device is: %s\n";
+	struct device_node *dp;
+	unsigned long flags;
+	const char *type;
+	phandle node;
+	int skip, fd;
+
+	of_console_path = prom_early_alloc(256);
+
+	switch (prom_vers) {
+	case PROM_V0:
+	case PROM_SUN4:
+		skip = 0;
+		switch (*romvec->pv_stdout) {
+		case PROMDEV_SCREEN:
+			type = "display";
+			break;
+
+		case PROMDEV_TTYB:
+			skip = 1;
+			/* FALLTHRU */
+
+		case PROMDEV_TTYA:
+			type = "serial";
+			break;
+
+		default:
+			prom_printf("Invalid PROM_V0 stdout value %u\n",
+				    *romvec->pv_stdout);
+			prom_halt();
+		}
+
+		for_each_node_by_type(dp, type) {
+			if (!skip--)
+				break;
+		}
+		if (!dp) {
+			prom_printf("Cannot find PROM_V0 console node.\n");
+			prom_halt();
+		}
+		of_console_device = dp;
+
+		strcpy(of_console_path, dp->full_name);
+		if (!strcmp(type, "serial")) {
+			strcat(of_console_path,
+			       (skip ? ":b" : ":a"));
+		}
+		break;
+
+	default:
+	case PROM_V2:
+	case PROM_V3:
+		fd = *romvec->pv_v2bootargs.fd_stdout;
+
+		spin_lock_irqsave(&prom_lock, flags);
+		node = (*romvec->pv_v2devops.v2_inst2pkg)(fd);
+		restore_current();
+		spin_unlock_irqrestore(&prom_lock, flags);
+
+		if (!node) {
+			prom_printf("Cannot resolve stdout node from "
+				    "instance %08x.\n", fd);
+			prom_halt();
+		}
+		dp = of_find_node_by_phandle(node);
+		type = of_get_property(dp, "device_type", NULL);
+
+		if (!type) {
+			prom_printf("Console stdout lacks "
+				    "device_type property.\n");
+			prom_halt();
+		}
+
+		if (strcmp(type, "display") && strcmp(type, "serial")) {
+			prom_printf("Console device_type is neither display "
+				    "nor serial.\n");
+			prom_halt();
+		}
+
+		of_console_device = dp;
+
+		if (prom_vers == PROM_V2) {
+			strcpy(of_console_path, dp->full_name);
+			switch (*romvec->pv_stdout) {
+			case PROMDEV_TTYA:
+				strcat(of_console_path, ":a");
+				break;
+			case PROMDEV_TTYB:
+				strcat(of_console_path, ":b");
+				break;
+			}
+		} else {
+			const char *path;
+
+			dp = of_find_node_by_path("/");
+			path = of_get_property(dp, "stdout-path", NULL);
+			if (!path) {
+				prom_printf("No stdout-path in root node.\n");
+				prom_halt();
+			}
+			strcpy(of_console_path, path);
+		}
+		break;
+	}
+
+	of_console_options = strrchr(of_console_path, ':');
+	if (of_console_options) {
+		of_console_options++;
+		if (*of_console_options == '\0')
+			of_console_options = NULL;
+	}
+
+	prom_printf(msg, of_console_path);
+	printk(msg, of_console_path);
+}
+
 void __init prom_build_devicetree(void)
 {
 	struct device_node **nextp;
@@ -409,6 +538,8 @@ void __init prom_build_devicetree(void)
 	allnodes->child = build_tree(allnodes,
 				     prom_getchild(allnodes->node),
 				     &nextp);
+	of_console_init();
+
 	printk("PROM: Built device tree with %u bytes of memory.\n",
 	       prom_early_allocated);
 }

arch/sparc/kernel/setup.c

@@ -146,31 +146,6 @@ static void __init process_switch(char c)
 	}
 }
 
-static void __init process_console(char *commands)
-{
-	serial_console = 0;
-	commands += 8;
-	/* Linux-style serial */
-	if (!strncmp(commands, "ttyS", 4))
-		serial_console = simple_strtoul(commands + 4, NULL, 10) + 1;
-	else if (!strncmp(commands, "tty", 3)) {
-		char c = *(commands + 3);
-		/* Solaris-style serial */
-		if (c == 'a' || c == 'b')
-			serial_console = c - 'a' + 1;
-		/* else Linux-style fbcon, not serial */
-	}
-#if defined(CONFIG_PROM_CONSOLE)
-	if (!strncmp(commands, "prom", 4)) {
-		char *p;
-
-		for (p = commands - 8; *p && *p != ' '; p++)
-			*p = ' ';
-		conswitchp = &prom_con;
-	}
-#endif
-}
-
 static void __init boot_flags_init(char *commands)
 {
 	while (*commands) {
@@ -187,9 +162,7 @@ static void __init boot_flags_init(char *commands)
 				process_switch(*commands++);
 			continue;
 		}
-		if (!strncmp(commands, "console=", 8)) {
-			process_console(commands);
-		} else if (!strncmp(commands, "mem=", 4)) {
+		if (!strncmp(commands, "mem=", 4)) {
 			/*
 			 * "mem=XXX[kKmM] overrides the PROM-reported
 			 * memory size.
@@ -341,41 +314,6 @@ void __init setup_arch(char **cmdline_p)
 	smp_setup_cpu_possible_map();
 }
 
-static int __init set_preferred_console(void)
-{
-	int idev, odev;
-
-	/* The user has requested a console so this is already set up. */
-	if (serial_console >= 0)
-		return -EBUSY;
-
-	idev = prom_query_input_device();
-	odev = prom_query_output_device();
-	if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
-		serial_console = 0;
-	} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
-		serial_console = 1;
-	} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
-		serial_console = 2;
-	} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OTTYA) {
-		prom_printf("MrCoffee ttya\n");
-		serial_console = 1;
-	} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OSCREEN) {
-		serial_console = 0;
-		prom_printf("MrCoffee keyboard\n");
-	} else {
-		prom_printf("Confusing console (idev %d, odev %d)\n",
-		    idev, odev);
-		serial_console = 1;
-	}
-
-	if (serial_console)
-		return add_preferred_console("ttyS", serial_console - 1, NULL);
-
-	return -ENODEV;
-}
-console_initcall(set_preferred_console);
-
 extern char *sparc_cpu_type;
 extern char *sparc_fpu_type;
 
@@ -461,7 +399,6 @@ void sun_do_break(void)
 	prom_cmdline();
 }
 
-int serial_console = -1;
 int stop_a_enabled = 1;
 
 static int __init topology_init(void)