Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: sparc: Set UTS_MACHINE correctly. sparc,leon: init_leon srmmu cleanup sparc32: Remove early interrupt enable. sparc, leon: Added Aeroflex Gaisler entry in manufacturer_info structure sparc64: Faster early-boot framebuffer console. Revert "sparc: Make atomic locks raw" sparc: remove unused nfsd #includes sparc: Fixup last users of irq_chip->typename Added sparc_leon3_snooping_enabled() and converted extern inline to static inline No auxio on LEON apbuart: Use of_find_node_by_path to find root node. sparc: Replace old style lock initializer sparc: Make atomic locks raw apbuart: Fix build and missing driver unregister. apbuart: Kill dependency on deprecated Sparc-only PROM interfaces. apbuart: Fix build warning. sparc: Support for GRLIB APBUART serial port watchdog: Remove BKL from rio watchdog driver sparc: Remove BKL from apc sparc,leon: Sparc-Leon SMP support
author: Linus Torvalds <torvalds@linux-foundation.org> 2009-12-08 07:48:23 -0800
committer: Linus Torvalds <torvalds@linux-foundation.org> 2009-12-08 07:48:23 -0800
commit: ee1262dbc65ce0b6234a915d8432171e8d77f518 (patch)
tree: 3a4003800d170de691b2e6a9c93c0ca6795678bf
parent: a421018e8c10e5593a1fee076af72a66c3fe8ca3 (diff)
parent: 7f5620a5fcd658f219e85831d3691908f1eccbde (diff)
download: linux-ee1262dbc65ce0b6234a915d8432171e8d77f518.tar.gz
30 files changed, 2262 insertions, 57 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 05ef5380a687..33ac1a9ac881 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -221,6 +221,13 @@ config SPARC64_SMP
 	default y
 	depends on SPARC64 && SMP
 
+config EARLYFB
+	bool "Support for early boot text console"
+	default y
+	depends on SPARC64
+	help
+	  Say Y here to enable a faster early framebuffer boot console.
+
 choice
 	prompt "Kernel page size" if SPARC64
 	default SPARC64_PAGE_SIZE_8KB
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index dfe272d14465..113225b241e0 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -27,6 +27,7 @@ AS             := $(AS) -32
 LDFLAGS        := -m elf32_sparc
 CHECKFLAGS     += -D__sparc__
 export BITS    := 32
+UTS_MACHINE    := sparc
 
 #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
@@ -46,6 +47,7 @@ CHECKFLAGS      += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
 
 LDFLAGS              := -m elf64_sparc
 export BITS          := 64
+UTS_MACHINE          := sparc64
 
 KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow   \
                  -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
diff --git a/arch/sparc/include/asm/btext.h b/arch/sparc/include/asm/btext.h
new file mode 100644
index 000000000000..9b2bc6b6ed0a
--- /dev/null
+++ b/arch/sparc/include/asm/btext.h
@@ -0,0 +1,6 @@
+#ifndef _SPARC_BTEXT_H
+#define _SPARC_BTEXT_H
+
+extern int btext_find_display(void);
+
+#endif /* _SPARC_BTEXT_H */
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 28a42b73f64f..3ea5964c43b4 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -148,7 +148,7 @@ static inline unsigned long leon_load_reg(unsigned long paddr)
 	return retval;
 }
 
-extern inline void leon_srmmu_disabletlb(void)
+static inline void leon_srmmu_disabletlb(void)
 {
 	unsigned int retval;
 	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
@@ -158,7 +158,7 @@ extern inline void leon_srmmu_disabletlb(void)
 			     "i"(ASI_LEON_MMUREGS) : "memory");
 }
 
-extern inline void leon_srmmu_enabletlb(void)
+static inline void leon_srmmu_enabletlb(void)
 {
 	unsigned int retval;
 	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
@@ -190,7 +190,7 @@ extern void leon_init_IRQ(void);
 
 extern unsigned long last_valid_pfn;
 
-extern inline unsigned long sparc_leon3_get_dcachecfg(void)
+static inline unsigned long sparc_leon3_get_dcachecfg(void)
 {
 	unsigned int retval;
 	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
@@ -201,7 +201,7 @@ extern inline unsigned long sparc_leon3_get_dcachecfg(void)
 }
 
 /* enable snooping */
-extern inline void sparc_leon3_enable_snooping(void)
+static inline void sparc_leon3_enable_snooping(void)
 {
 	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
 			  "set 0x800000, %%l2\n\t"
@@ -209,7 +209,14 @@ extern inline void sparc_leon3_enable_snooping(void)
 			  "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
 };
 
-extern inline void sparc_leon3_disable_cache(void)
+static inline int sparc_leon3_snooping_enabled(void)
+{
+	u32 cctrl;
+	__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
+        return (cctrl >> 23) & 1;
+};
+
+static inline void sparc_leon3_disable_cache(void)
 {
 	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
 			  "set 0x00000f, %%l2\n\t"
@@ -340,6 +347,30 @@ extern int leon_flush_needed(void);
 extern void leon_switch_mm(void);
 extern int srmmu_swprobe_trace;
 
+#ifdef CONFIG_SMP
+extern int leon_smp_nrcpus(void);
+extern void leon_clear_profile_irq(int cpu);
+extern void leon_smp_done(void);
+extern void leon_boot_cpus(void);
+extern int leon_boot_one_cpu(int i);
+void leon_init_smp(void);
+extern void cpu_probe(void);
+extern void cpu_idle(void);
+extern void init_IRQ(void);
+extern void cpu_panic(void);
+extern int __leon_processor_id(void);
+void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
+
+extern unsigned int real_irq_entry[], smpleon_ticker[];
+extern unsigned int patchme_maybe_smp_msg[];
+extern unsigned long trapbase_cpu1[];
+extern unsigned long trapbase_cpu2[];
+extern unsigned long trapbase_cpu3[];
+extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
+extern unsigned int linux_trap_ipi15_sun4m[];
+
+#endif /* CONFIG_SMP */
+
 #endif /* __KERNEL__ */
 
 #endif /* __ASSEMBLY__ */
@@ -356,6 +387,10 @@ extern int srmmu_swprobe_trace;
 #define leon_switch_mm() do {} while (0)
 #define leon_init_IRQ() do {} while (0)
 #define init_leon() do {} while (0)
+#define leon_smp_done() do {} while (0)
+#define leon_boot_cpus() do {} while (0)
+#define leon_boot_one_cpu(i) 1
+#define leon_init_smp() do {} while (0)
 
 #endif /* !defined(CONFIG_SPARC_LEON) */
 
diff --git a/arch/sparc/include/asm/rwsem.h b/arch/sparc/include/asm/rwsem.h
index 1dc129ac2feb..6e5621006f85 100644
--- a/arch/sparc/include/asm/rwsem.h
+++ b/arch/sparc/include/asm/rwsem.h
@@ -35,8 +35,8 @@ struct rw_semaphore {
 #endif
 
 #define __RWSEM_INITIALIZER(name) \
-{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \
-  __RWSEM_DEP_MAP_INIT(name) }
+{ RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait_lock), \
+  LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) }
 
 #define DECLARE_RWSEM(name) \
 	struct rw_semaphore name = __RWSEM_INITIALIZER(name)
diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h
index 58101dc70493..841905c10215 100644
--- a/arch/sparc/include/asm/smp_32.h
+++ b/arch/sparc/include/asm/smp_32.h
@@ -106,6 +106,15 @@ static inline int hard_smp4d_processor_id(void)
 	return cpuid;
 }
 
+extern inline int hard_smpleon_processor_id(void)
+{
+	int cpuid;
+	__asm__ __volatile__("rd     %%asr17,%0\n\t"
+			     "srl    %0,28,%0" :
+			     "=&r" (cpuid) : );
+	return cpuid;
+}
+
 #ifndef MODULE
 static inline int hard_smp_processor_id(void)
 {
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 5b47fab9966e..c6316142db4e 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -72,7 +72,7 @@ obj-y                     += dma.o
 obj-$(CONFIG_SPARC32_PCI) += pcic.o
 
 obj-$(CONFIG_SMP)         += trampoline_$(BITS).o smp_$(BITS).o
-obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o
+obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o leon_smp.o
 obj-$(CONFIG_SPARC64_SMP) += hvtramp.o
 
 obj-y                     += auxio_$(BITS).o
@@ -87,6 +87,7 @@ obj-$(CONFIG_KGDB)        += kgdb_$(BITS).o
 obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
 CFLAGS_REMOVE_ftrace.o := -pg
 
+obj-$(CONFIG_EARLYFB) += btext.o
 obj-$(CONFIG_STACKTRACE)     += stacktrace.o
 # sparc64 PCI
 obj-$(CONFIG_SPARC64_PCI)    += pci.o pci_common.o psycho_common.o
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 9c115823c4b5..71ec90b9e316 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -10,7 +10,6 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
 #include <linux/pm.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -76,7 +75,6 @@ static inline void apc_free(struct of_device *op)
 
 static int apc_open(struct inode *inode, struct file *f)
 {
-	cycle_kernel_lock();
 	return 0;
 }
 
@@ -87,61 +85,46 @@ static int apc_release(struct inode *inode, struct file *f)
 
 static long apc_ioctl(struct file *f, unsigned int cmd, unsigned long __arg)
 {
-	__u8 inarg, __user *arg;
-
-	arg = (__u8 __user *) __arg;
-
-	lock_kernel();
+	__u8 inarg, __user *arg = (__u8 __user *) __arg;
 
 	switch (cmd) {
 	case APCIOCGFANCTL:
-		if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg)) {
-			unlock_kernel();
+		if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg))
 			return -EFAULT;
-		}
 		break;
 
 	case APCIOCGCPWR:
-		if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg)) {
-			unlock_kernel();
+		if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg))
 			return -EFAULT;
-		}
 		break;
 
 	case APCIOCGBPORT:
-		if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg)) {
-			unlock_kernel();
+		if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg))
 			return -EFAULT;
-		}
 		break;
 
 	case APCIOCSFANCTL:
-		if (get_user(inarg, arg)) {
-			unlock_kernel();
+		if (get_user(inarg, arg))
 			return -EFAULT;
-		}
 		apc_writeb(inarg & APC_REGMASK, APC_FANCTL_REG);
 		break;
+
 	case APCIOCSCPWR:
-		if (get_user(inarg, arg)) {
-			unlock_kernel();
+		if (get_user(inarg, arg))
 			return -EFAULT;
-		}
 		apc_writeb(inarg & APC_REGMASK, APC_CPOWER_REG);
 		break;
+
 	case APCIOCSBPORT:
-		if (get_user(inarg, arg)) {
-			unlock_kernel();
+		if (get_user(inarg, arg))
 			return -EFAULT;
-		}
 		apc_writeb(inarg & APC_BPMASK, APC_BPORT_REG);
 		break;
+
 	default:
-		unlock_kernel();
 		return -EINVAL;
 	};
 
-	unlock_kernel();
 	return 0;
 }
 
diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c
index 45c41232fc4c..ee8d214cae1e 100644
--- a/arch/sparc/kernel/auxio_32.c
+++ b/arch/sparc/kernel/auxio_32.c
@@ -28,6 +28,7 @@ void __init auxio_probe(void)
 	struct resource r;
 
 	switch (sparc_cpu_model) {
+	case sparc_leon:
 	case sun4d:
 	case sun4:
 		return;
diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c
new file mode 100644
index 000000000000..8cc2d56ffe9a
--- /dev/null
+++ b/arch/sparc/kernel/btext.c
@@ -0,0 +1,673 @@
+/*
+ * Procedures for drawing on the screen early on in the boot process.
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/console.h>
+
+#include <asm/btext.h>
+#include <asm/oplib.h>
+#include <asm/io.h>
+
+#define NO_SCROLL
+
+#ifndef NO_SCROLL
+static void scrollscreen(void);
+#endif
+
+static void draw_byte(unsigned char c, long locX, long locY);
+static void draw_byte_32(unsigned char *bits, unsigned int *base, int rb);
+static void draw_byte_16(unsigned char *bits, unsigned int *base, int rb);
+static void draw_byte_8(unsigned char *bits, unsigned int *base, int rb);
+
+#define __force_data __attribute__((__section__(".data")))
+
+static int g_loc_X __force_data;
+static int g_loc_Y __force_data;
+static int g_max_loc_X __force_data;
+static int g_max_loc_Y __force_data;
+
+static int dispDeviceRowBytes __force_data;
+static int dispDeviceDepth  __force_data;
+static int dispDeviceRect[4] __force_data;
+static unsigned char *dispDeviceBase __force_data;
+
+#define cmapsz	(16*256)
+
+static unsigned char vga_font[cmapsz];
+
+static int __init btext_initialize(unsigned int node)
+{
+	unsigned int width, height, depth, pitch;
+	unsigned long address = 0;
+	u32 prop;
+
+	if (prom_getproperty(node, "width", (char *)&width, 4) < 0)
+		return -EINVAL;
+	if (prom_getproperty(node, "height", (char *)&height, 4) < 0)
+		return -EINVAL;
+	if (prom_getproperty(node, "depth", (char *)&depth, 4) < 0)
+		return -EINVAL;
+	pitch = width * ((depth + 7) / 8);
+
+	if (prom_getproperty(node, "linebytes", (char *)&prop, 4) >= 0 &&
+	    prop != 0xffffffffu)
+		pitch = prop;
+
+	if (pitch == 1)
+		pitch = 0x1000;
+
+	if (prom_getproperty(node, "address", (char *)&prop, 4) >= 0)
+		address = prop;
+
+	/* FIXME: Add support for PCI reg properties. Right now, only
+	 * reliable on macs
+	 */
+	if (address == 0)
+		return -EINVAL;
+
+	g_loc_X = 0;
+	g_loc_Y = 0;
+	g_max_loc_X = width / 8;
+	g_max_loc_Y = height / 16;
+	dispDeviceBase = (unsigned char *)address;
+	dispDeviceRowBytes = pitch;
+	dispDeviceDepth = depth == 15 ? 16 : depth;
+	dispDeviceRect[0] = dispDeviceRect[1] = 0;
+	dispDeviceRect[2] = width;
+	dispDeviceRect[3] = height;
+
+	return 0;
+}
+
+/* Calc the base address of a given point (x,y) */
+static unsigned char * calc_base(int x, int y)
+{
+	unsigned char *base = dispDeviceBase;
+
+	base += (x + dispDeviceRect[0]) * (dispDeviceDepth >> 3);
+	base += (y + dispDeviceRect[1]) * dispDeviceRowBytes;
+	return base;
+}
+
+static void btext_clearscreen(void)
+{
+	unsigned int *base	= (unsigned int *)calc_base(0, 0);
+	unsigned long width 	= ((dispDeviceRect[2] - dispDeviceRect[0]) *
+					(dispDeviceDepth >> 3)) >> 2;
+	int i,j;
+
+	for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1]); i++)
+	{
+		unsigned int *ptr = base;
+		for(j=width; j; --j)
+			*(ptr++) = 0;
+		base += (dispDeviceRowBytes >> 2);
+	}
+}
+
+#ifndef NO_SCROLL
+static void scrollscreen(void)
+{
+	unsigned int *src     	= (unsigned int *)calc_base(0,16);
+	unsigned int *dst     	= (unsigned int *)calc_base(0,0);
+	unsigned long width    	= ((dispDeviceRect[2] - dispDeviceRect[0]) *
+				   (dispDeviceDepth >> 3)) >> 2;
+	int i,j;
+
+	for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1] - 16); i++)
+	{
+		unsigned int *src_ptr = src;
+		unsigned int *dst_ptr = dst;
+		for(j=width; j; --j)
+			*(dst_ptr++) = *(src_ptr++);
+		src += (dispDeviceRowBytes >> 2);
+		dst += (dispDeviceRowBytes >> 2);
+	}
+	for (i=0; i<16; i++)
+	{
+		unsigned int *dst_ptr = dst;
+		for(j=width; j; --j)
+			*(dst_ptr++) = 0;
+		dst += (dispDeviceRowBytes >> 2);
+	}
+}
+#endif /* ndef NO_SCROLL */
+
+void btext_drawchar(char c)
+{
+	int cline = 0;
+#ifdef NO_SCROLL
+	int x;
+#endif
+	switch (c) {
+	case '\b':
+		if (g_loc_X > 0)
+			--g_loc_X;
+		break;
+	case '\t':
+		g_loc_X = (g_loc_X & -8) + 8;
+		break;
+	case '\r':
+		g_loc_X = 0;
+		break;
+	case '\n':
+		g_loc_X = 0;
+		g_loc_Y++;
+		cline = 1;
+		break;
+	default:
+		draw_byte(c, g_loc_X++, g_loc_Y);
+	}
+	if (g_loc_X >= g_max_loc_X) {
+		g_loc_X = 0;
+		g_loc_Y++;
+		cline = 1;
+	}
+#ifndef NO_SCROLL
+	while (g_loc_Y >= g_max_loc_Y) {
+		scrollscreen();
+		g_loc_Y--;
+	}
+#else
+	/* wrap around from bottom to top of screen so we don't
+	   waste time scrolling each line.  -- paulus. */
+	if (g_loc_Y >= g_max_loc_Y)
+		g_loc_Y = 0;
+	if (cline) {
+		for (x = 0; x < g_max_loc_X; ++x)
+			draw_byte(' ', x, g_loc_Y);
+	}
+#endif
+}
+
+static void btext_drawtext(const char *c, unsigned int len)
+{
+	while (len--)
+		btext_drawchar(*c++);
+}
+
+static void draw_byte(unsigned char c, long locX, long locY)
+{
+	unsigned char *base	= calc_base(locX << 3, locY << 4);
+	unsigned char *font	= &vga_font[((unsigned int)c) * 16];
+	int rb			= dispDeviceRowBytes;
+
+	switch(dispDeviceDepth) {
+	case 24:
+	case 32:
+		draw_byte_32(font, (unsigned int *)base, rb);
+		break;
+	case 15:
+	case 16:
+		draw_byte_16(font, (unsigned int *)base, rb);
+		break;
+	case 8:
+		draw_byte_8(font, (unsigned int *)base, rb);
+		break;
+	}
+}
+
+static unsigned int expand_bits_8[16] = {
+	0x00000000,
+	0x000000ff,
+	0x0000ff00,
+	0x0000ffff,
+	0x00ff0000,
+	0x00ff00ff,
+	0x00ffff00,
+	0x00ffffff,
+	0xff000000,
+	0xff0000ff,
+	0xff00ff00,
+	0xff00ffff,
+	0xffff0000,
+	0xffff00ff,
+	0xffffff00,
+	0xffffffff
+};
+
+static unsigned int expand_bits_16[4] = {
+	0x00000000,
+	0x0000ffff,
+	0xffff0000,
+	0xffffffff
+};
+
+
+static void draw_byte_32(unsigned char *font, unsigned int *base, int rb)
+{
+	int l, bits;
+	int fg = 0xFFFFFFFFUL;
+	int bg = 0x00000000UL;
+
+	for (l = 0; l < 16; ++l)
+	{
+		bits = *font++;
+		base[0] = (-(bits >> 7) & fg) ^ bg;
+		base[1] = (-((bits >> 6) & 1) & fg) ^ bg;
+		base[2] = (-((bits >> 5) & 1) & fg) ^ bg;
+		base[3] = (-((bits >> 4) & 1) & fg) ^ bg;
+		base[4] = (-((bits >> 3) & 1) & fg) ^ bg;
+		base[5] = (-((bits >> 2) & 1) & fg) ^ bg;
+		base[6] = (-((bits >> 1) & 1) & fg) ^ bg;
+		base[7] = (-(bits & 1) & fg) ^ bg;
+		base = (unsigned int *) ((char *)base + rb);
+	}
+}
+
+static void draw_byte_16(unsigned char *font, unsigned int *base, int rb)
+{
+	int l, bits;
+	int fg = 0xFFFFFFFFUL;
+	int bg = 0x00000000UL;
+	unsigned int *eb = (int *)expand_bits_16;
+
+	for (l = 0; l < 16; ++l)
+	{
+		bits = *font++;
+		base[0] = (eb[bits >> 6] & fg) ^ bg;
+		base[1] = (eb[(bits >> 4) & 3] & fg) ^ bg;
+		base[2] = (eb[(bits >> 2) & 3] & fg) ^ bg;
+		base[3] = (eb[bits & 3] & fg) ^ bg;
+		base = (unsigned int *) ((char *)base + rb);
+	}
+}
+
+static void draw_byte_8(unsigned char *font, unsigned int *base, int rb)
+{
+	int l, bits;
+	int fg = 0x0F0F0F0FUL;
+	int bg = 0x00000000UL;
+	unsigned int *eb = (int *)expand_bits_8;
+
+	for (l = 0; l < 16; ++l)
+	{
+		bits = *font++;
+		base[0] = (eb[bits >> 4] & fg) ^ bg;
+		base[1] = (eb[bits & 0xf] & fg) ^ bg;
+		base = (unsigned int *) ((char *)base + rb);
+	}
+}
+
+static void btext_console_write(struct console *con, const char *s,
+				unsigned int n)
+{
+	btext_drawtext(s, n);
+}
+
+static struct console btext_console = {
+	.name	= "btext",
+	.write	= btext_console_write,
+	.flags	= CON_PRINTBUFFER | CON_ENABLED | CON_BOOT | CON_ANYTIME,
+	.index	= 0,
+};
+
+int __init btext_find_display(void)
+{
+	unsigned int node;
+	char type[32];
+	int ret;
+
+	node = prom_inst2pkg(prom_stdout);
+	if (prom_getproperty(node, "device_type", type, 32) < 0)
+		return -ENODEV;
+	if (strcmp(type, "display"))
+		return -ENODEV;
+
+	ret = btext_initialize(node);
+	if (!ret) {
+		btext_clearscreen();
+		register_console(&btext_console);
+	}
+	return ret;
+}
+
+static unsigned char vga_font[cmapsz] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x81, 0xa5, 0x81, 0x81, 0xbd,
+0x99, 0x81, 0x81, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xff,
+0xdb, 0xff, 0xff, 0xc3, 0xe7, 0xff, 0xff, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x6c, 0xfe, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x7c, 0xfe,
+0x7c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
+0x3c, 0x3c, 0xe7, 0xe7, 0xe7, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x7e, 0x18, 0x18, 0x3c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
+0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0x99, 0xbd,
+0xbd, 0x99, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x1e, 0x0e,
+0x1a, 0x32, 0x78, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x3c, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x33, 0x3f, 0x30, 0x30, 0x30,
+0x30, 0x70, 0xf0, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x63,
+0x7f, 0x63, 0x63, 0x63, 0x63, 0x67, 0xe7, 0xe6, 0xc0, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x18, 0x18, 0xdb, 0x3c, 0xe7, 0x3c, 0xdb, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfe, 0xf8,
+0xf0, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x06, 0x0e,
+0x1e, 0x3e, 0xfe, 0x3e, 0x1e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+0x66, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xdb,
+0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x7c, 0xc6, 0x60, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x0c, 0xc6,
+0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xfe, 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
+0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x7e, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0,
+0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x24, 0x66, 0xff, 0x66, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x7c, 0x7c, 0xfe, 0xfe, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x7c, 0x7c,
+0x38, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x3c, 0x3c, 0x3c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x24, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c,
+0x6c, 0xfe, 0x6c, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
+0x18, 0x18, 0x7c, 0xc6, 0xc2, 0xc0, 0x7c, 0x06, 0x06, 0x86, 0xc6, 0x7c,
+0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc2, 0xc6, 0x0c, 0x18,
+0x30, 0x60, 0xc6, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
+0x6c, 0x38, 0x76, 0xdc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x30, 0x30, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30,
+0x30, 0x30, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x18,
+0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e,
+0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x02, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xce, 0xde, 0xf6, 0xe6, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x38, 0x78, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xc6, 0xfe, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x7c, 0xc6, 0x06, 0x06, 0x3c, 0x06, 0x06, 0x06, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x1c, 0x3c, 0x6c, 0xcc, 0xfe,
+0x0c, 0x0c, 0x0c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc0,
+0xc0, 0xc0, 0xfc, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x38, 0x60, 0xc0, 0xc0, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0x06, 0x06, 0x0c, 0x18,
+0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+0xc6, 0xc6, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x06, 0x06, 0x0c, 0x78,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00,
+0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x06,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00,
+0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60,
+0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x0c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xde, 0xde,
+0xde, 0xdc, 0xc0, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38,
+0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0x66, 0xfc,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0xc2, 0xc0, 0xc0, 0xc0,
+0xc0, 0xc2, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x6c,
+0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x6c, 0xf8, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x60, 0x62, 0x66, 0xfe,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68,
+0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66,
+0xc2, 0xc0, 0xc0, 0xde, 0xc6, 0xc6, 0x66, 0x3a, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x0c,
+0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xe6, 0x66, 0x66, 0x6c, 0x78, 0x78, 0x6c, 0x66, 0x66, 0xe6,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x60, 0x60, 0x60, 0x60, 0x60,
+0x60, 0x62, 0x66, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xe7,
+0xff, 0xff, 0xdb, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xc6, 0xe6, 0xf6, 0xfe, 0xde, 0xce, 0xc6, 0xc6, 0xc6, 0xc6,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x66,
+0x66, 0x66, 0x7c, 0x60, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xde, 0x7c,
+0x0c, 0x0e, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x6c,
+0x66, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+0xc6, 0x60, 0x38, 0x0c, 0x06, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xff, 0xdb, 0x99, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3,
+0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x66, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xdb, 0xdb, 0xff, 0x66, 0x66,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3, 0x66, 0x3c, 0x18, 0x18,
+0x3c, 0x66, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3,
+0xc3, 0x66, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xff, 0xc3, 0x86, 0x0c, 0x18, 0x30, 0x60, 0xc1, 0xc3, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x30, 0x30, 0x30, 0x30, 0x30,
+0x30, 0x30, 0x30, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+0xc0, 0xe0, 0x70, 0x38, 0x1c, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c,
+0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
+0x30, 0x30, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x0c, 0x7c,
+0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x60,
+0x60, 0x78, 0x6c, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc0, 0xc0, 0xc0, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x0c, 0x0c, 0x3c, 0x6c, 0xcc,
+0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x7c, 0xc6, 0xfe, 0xc0, 0xc0, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x38, 0x6c, 0x64, 0x60, 0xf0, 0x60, 0x60, 0x60, 0x60, 0xf0,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xcc, 0xcc,
+0xcc, 0xcc, 0xcc, 0x7c, 0x0c, 0xcc, 0x78, 0x00, 0x00, 0x00, 0xe0, 0x60,
+0x60, 0x6c, 0x76, 0x66, 0x66, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x18, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x06, 0x00, 0x0e, 0x06, 0x06,
+0x06, 0x06, 0x06, 0x06, 0x66, 0x66, 0x3c, 0x00, 0x00, 0x00, 0xe0, 0x60,
+0x60, 0x66, 0x6c, 0x78, 0x78, 0x6c, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00,
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+0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xd8, 0xcc, 0xc6, 0xc6, 0xc6, 0xcc,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0,
+0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xfe, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0xfe, 0xc6, 0x60, 0x30, 0x18, 0x30, 0x60, 0xc6, 0xfe,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xd8, 0xd8,
+0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x66, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xc0, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x18, 0x3c, 0x66, 0x66,
+0x66, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38,
+0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x6c, 0x6c, 0x6c, 0xee,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x30, 0x18, 0x0c, 0x3e, 0x66,
+0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x7e, 0xdb, 0xdb, 0xdb, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x03, 0x06, 0x7e, 0xdb, 0xdb, 0xf3, 0x7e, 0x60, 0xc0,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x30, 0x60, 0x60, 0x7c, 0x60,
+0x60, 0x60, 0x30, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c,
+0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18,
+0x18, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
+0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x00, 0x7e,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x1b, 0x1b, 0x1b, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x7e, 0x00, 0x18, 0x18, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00,
+0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x6c,
+0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0c, 0x0c,
+0x0c, 0x0c, 0x0c, 0xec, 0x6c, 0x6c, 0x3c, 0x1c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xd8, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0xd8, 0x30, 0x60, 0xc8, 0xf8, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00,
+};
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 1446df90ef85..e447938d39cf 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -185,6 +185,17 @@ static const struct manufacturer_info __initconst manufacturer_info[] = {
 		FPU(-1, NULL)
 	}
 },{
+	0xF,		/* Aeroflex Gaisler */
+	.cpu_info = {
+		CPU(3, "LEON"),
+		CPU(-1, NULL)
+	},
+	.fpu_info = {
+		FPU(2, "GRFPU"),
+		FPU(3, "GRFPU-Lite"),
+		FPU(-1, NULL)
+	}
+},{
 	0x17,
 	.cpu_info = {
 		CPU_PMU(0x10, "TI UltraSparc I   (SpitFire)", "ultra12"),
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index f41ecc5ac0b4..ec9c7bc67d21 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -400,6 +400,39 @@ linux_trap_ipi15_sun4d:
 	/* FIXME */
 1:	b,a	1b
 
+#ifdef CONFIG_SPARC_LEON
+
+	.globl	smpleon_ticker
+	/* SMP per-cpu ticker interrupts are handled specially. */
+smpleon_ticker:
+        SAVE_ALL
+	or	%l0, PSR_PIL, %g2
+	wr	%g2, 0x0, %psr
+	WRITE_PAUSE
+	wr	%g2, PSR_ET, %psr
+	WRITE_PAUSE
+	call	leon_percpu_timer_interrupt
+	 add	%sp, STACKFRAME_SZ, %o0
+	wr	%l0, PSR_ET, %psr
+	WRITE_PAUSE
+	RESTORE_ALL
+
+	.align	4
+	.globl	linux_trap_ipi15_leon
+linux_trap_ipi15_leon:
+	SAVE_ALL
+	or	%l0, PSR_PIL, %l4
+	wr	%l4, 0x0, %psr
+	WRITE_PAUSE
+	wr	%l4, PSR_ET, %psr
+	WRITE_PAUSE
+	call	leon_cross_call_irq
+	 nop
+	b	ret_trap_lockless_ipi
+	 clr	%l6
+
+#endif /* CONFIG_SPARC_LEON */
+
 #endif /* CONFIG_SMP */
 
 	/* This routine handles illegal instructions and privileged
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index 439d82a95ac9..21bb2590d4ae 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -811,9 +811,31 @@ found_version:
 got_prop:
 #ifdef CONFIG_SPARC_LEON
 	        /* no cpu-type check is needed, it is a SPARC-LEON */
+#ifdef CONFIG_SMP
+		ba leon_smp_init
+		 nop
+
+		.global leon_smp_init
+leon_smp_init:
+		sethi	%hi(boot_cpu_id), %g1    ! master always 0
+		stb	%g0, [%g1 + %lo(boot_cpu_id)]
+		sethi	%hi(boot_cpu_id4), %g1   ! master always 0
+		stb	%g0, [%g1 + %lo(boot_cpu_id4)]
+
+		rd     %asr17,%g1
+		srl    %g1,28,%g1
+
+		cmp %g0,%g1
+		 beq sun4c_continue_boot         !continue with master
+		nop
+
+		ba leon_smp_cpu_startup
+		 nop
+#else
 		ba sun4c_continue_boot
 		 nop
 #endif
+#endif
 		set	cputypval, %o2
 		ldub	[%o2 + 0x4], %l1
 
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 9f61fd8cbb7b..3c8c44f6a41c 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -48,8 +48,13 @@
 #include <asm/dma.h>
 #include <asm/iommu.h>
 #include <asm/io-unit.h>
+#include <asm/leon.h>
 
+#ifdef CONFIG_SPARC_LEON
+#define mmu_inval_dma_area(p, l) leon_flush_dcache_all()
+#else
 #define mmu_inval_dma_area(p, l)	/* Anton pulled it out for 2.4.0-xx */
+#endif
 
 static struct resource *_sparc_find_resource(struct resource *r,
 					     unsigned long);
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 8ab1d4728a4b..ce996f97855f 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -187,7 +187,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		for_each_online_cpu(j)
 			seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
 #endif
-		seq_printf(p, " %9s", irq_desc[i].chip->typename);
+		seq_printf(p, " %9s", irq_desc[i].chip->name);
 		seq_printf(p, "  %s", action->name);
 
 		for (action=action->next; action; action = action->next)
@@ -484,7 +484,7 @@ static void sun4v_virq_eoi(unsigned int virt_irq)
 }
 
 static struct irq_chip sun4u_irq = {
-	.typename	= "sun4u",
+	.name		= "sun4u",
 	.enable		= sun4u_irq_enable,
 	.disable	= sun4u_irq_disable,
 	.eoi		= sun4u_irq_eoi,
@@ -492,7 +492,7 @@ static struct irq_chip sun4u_irq = {
 };
 
 static struct irq_chip sun4v_irq = {
-	.typename	= "sun4v",
+	.name		= "sun4v",
 	.enable		= sun4v_irq_enable,
 	.disable	= sun4v_irq_disable,
 	.eoi		= sun4v_irq_eoi,
@@ -500,7 +500,7 @@ static struct irq_chip sun4v_irq = {
 };
 
 static struct irq_chip sun4v_virq = {
-	.typename	= "vsun4v",
+	.name		= "vsun4v",
 	.enable		= sun4v_virq_enable,
 	.disable	= sun4v_virq_disable,
 	.eoi		= sun4v_virq_eoi,
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 54d8a5bd4824..87f1760c0aa2 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -12,11 +12,14 @@
 #include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/of_device.h>
+
 #include <asm/oplib.h>
 #include <asm/timer.h>
 #include <asm/prom.h>
 #include <asm/leon.h>
 #include <asm/leon_amba.h>
+#include <asm/traps.h>
+#include <asm/cacheflush.h>
 
 #include "prom.h"
 #include "irq.h"
@@ -115,6 +118,21 @@ void __init leon_init_timers(irq_handler_t counter_fn)
 				      (((1000000 / 100) - 1)));
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0);
 
+#ifdef CONFIG_SMP
+		leon_percpu_timer_dev[0].start = (int)leon3_gptimer_regs;
+		leon_percpu_timer_dev[0].irq = leon3_gptimer_irq+1;
+
+		if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
+		      (1<<LEON3_GPTIMER_SEPIRQ))) {
+			prom_printf("irq timer not configured with seperate irqs \n");
+			BUG();
+		}
+
+		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0);
+		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1)));
+		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0);
+# endif
+
 	} else {
 		printk(KERN_ERR "No Timer/irqctrl found\n");
 		BUG();
@@ -130,11 +148,41 @@ void __init leon_init_timers(irq_handler_t counter_fn)
 		prom_halt();
 	}
 
+# ifdef CONFIG_SMP
+	{
+		unsigned long flags;
+		struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (leon_percpu_timer_dev[0].irq - 1)];
+
+		/* For SMP we use the level 14 ticker, however the bootup code
+		 * has copied the firmwares level 14 vector into boot cpu's
+		 * trap table, we must fix this now or we get squashed.
+		 */
+		local_irq_save(flags);
+
+		patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
+
+		/* Adjust so that we jump directly to smpleon_ticker */
+		trap_table->inst_three += smpleon_ticker - real_irq_entry;
+
+		local_flush_cache_all();
+		local_irq_restore(flags);
+	}
+# endif
+
 	if (leon3_gptimer_regs) {
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl,
 				      LEON3_GPTIMER_EN |
 				      LEON3_GPTIMER_RL |
 				      LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
+
+#ifdef CONFIG_SMP
+		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl,
+				      LEON3_GPTIMER_EN |
+				      LEON3_GPTIMER_RL |
+				      LEON3_GPTIMER_LD |
+				      LEON3_GPTIMER_IRQEN);
+#endif
+
 	}
 }
 
@@ -175,6 +223,42 @@ void __init leon_node_init(struct device_node *dp, struct device_node ***nextp)
 	}
 }
 
+#ifdef CONFIG_SMP
+
+void leon_set_cpu_int(int cpu, int level)
+{
+	unsigned long mask;
+	mask = get_irqmask(level);
+	LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask);
+}
+
+static void leon_clear_ipi(int cpu, int level)
+{
+	unsigned long mask;
+	mask = get_irqmask(level);
+	LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask<<16);
+}
+
+static void leon_set_udt(int cpu)
+{
+}
+
+void leon_clear_profile_irq(int cpu)
+{
+}
+
+void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu)
+{
+	unsigned long mask, flags, *addr;
+	mask = get_irqmask(irq_nr);
+	local_irq_save(flags);
+	addr = (unsigned long *)&(leon3_irqctrl_regs->mask[cpu]);
+	LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | (mask)));
+	local_irq_restore(flags);
+}
+
+#endif
+
 void __init leon_init_IRQ(void)
 {
 	sparc_init_timers = leon_init_timers;
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
new file mode 100644
index 000000000000..05c0dadd6371
--- /dev/null
+++ b/arch/sparc/kernel/leon_smp.c
@@ -0,0 +1,468 @@
+/* leon_smp.c: Sparc-Leon SMP support.
+ *
+ * based on sun4m_smp.c
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
+ * Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
+ */
+
+#include <asm/head.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/threads.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/profile.h>
+#include <linux/pm.h>
+#include <linux/delay.h>
+
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+#include <asm/irq_regs.h>
+
+#include <asm/delay.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/pgtable.h>
+#include <asm/oplib.h>
+#include <asm/cpudata.h>
+#include <asm/asi.h>
+#include <asm/leon.h>
+#include <asm/leon_amba.h>
+
+#ifdef CONFIG_SPARC_LEON
+
+#include "irq.h"
+
+extern ctxd_t *srmmu_ctx_table_phys;
+static int smp_processors_ready;
+extern volatile unsigned long cpu_callin_map[NR_CPUS];
+extern unsigned char boot_cpu_id;
+extern cpumask_t smp_commenced_mask;
+void __init leon_configure_cache_smp(void);
+
+static inline unsigned long do_swap(volatile unsigned long *ptr,
+				    unsigned long val)
+{
+	__asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val)
+			     : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS)
+			     : "memory");
+	return val;
+}
+
+static void smp_setup_percpu_timer(void);
+
+void __cpuinit leon_callin(void)
+{
+	int cpuid = hard_smpleon_processor_id();
+
+	local_flush_cache_all();
+	local_flush_tlb_all();
+	leon_configure_cache_smp();
+
+	/* Get our local ticker going. */
+	smp_setup_percpu_timer();
+
+	calibrate_delay();
+	smp_store_cpu_info(cpuid);
+
+	local_flush_cache_all();
+	local_flush_tlb_all();
+
+	/*
+	 * Unblock the master CPU _only_ when the scheduler state
+	 * of all secondary CPUs will be up-to-date, so after
+	 * the SMP initialization the master will be just allowed
+	 * to call the scheduler code.
+	 * Allow master to continue.
+	 */
+	do_swap(&cpu_callin_map[cpuid], 1);
+
+	local_flush_cache_all();
+	local_flush_tlb_all();
+
+	cpu_probe();
+
+	/* Fix idle thread fields. */
+	__asm__ __volatile__("ld [%0], %%g6\n\t" : : "r"(&current_set[cpuid])
+			     : "memory" /* paranoid */);
+
+	/* Attach to the address space of init_task. */
+	atomic_inc(&init_mm.mm_count);
+	current->active_mm = &init_mm;
+
+	while (!cpu_isset(cpuid, smp_commenced_mask))
+		mb();
+
+	local_irq_enable();
+	cpu_set(cpuid, cpu_online_map);
+}
+
+/*
+ *	Cycle through the processors asking the PROM to start each one.
+ */
+
+extern struct linux_prom_registers smp_penguin_ctable;
+
+void __init leon_configure_cache_smp(void)
+{
+	unsigned long cfg = sparc_leon3_get_dcachecfg();
+	int me = smp_processor_id();
+
+	if (ASI_LEON3_SYSCTRL_CFG_SSIZE(cfg) > 4) {
+		printk(KERN_INFO "Note: SMP with snooping only works on 4k cache, found %dk(0x%x) on cpu %d, disabling caches\n",
+		     (unsigned int)ASI_LEON3_SYSCTRL_CFG_SSIZE(cfg),
+		     (unsigned int)cfg, (unsigned int)me);
+		sparc_leon3_disable_cache();
+	} else {
+		if (cfg & ASI_LEON3_SYSCTRL_CFG_SNOOPING) {
+			sparc_leon3_enable_snooping();
+		} else {
+			printk(KERN_INFO "Note: You have to enable snooping in the vhdl model cpu %d, disabling caches\n",
+			     me);
+			sparc_leon3_disable_cache();
+		}
+	}
+
+	local_flush_cache_all();
+	local_flush_tlb_all();
+}
+
+void leon_smp_setbroadcast(unsigned int mask)
+{
+	int broadcast =
+	    ((LEON3_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpstatus)) >>
+	      LEON3_IRQMPSTATUS_BROADCAST) & 1);
+	if (!broadcast) {
+		prom_printf("######## !!!! The irqmp-ctrl must have broadcast enabled, smp wont work !!!!! ####### nr cpus: %d\n",
+		     leon_smp_nrcpus());
+		if (leon_smp_nrcpus() > 1) {
+			BUG();
+		} else {
+			prom_printf("continue anyway\n");
+			return;
+		}
+	}
+	LEON_BYPASS_STORE_PA(&(leon3_irqctrl_regs->mpbroadcast), mask);
+}
+
+unsigned int leon_smp_getbroadcast(void)
+{
+	unsigned int mask;
+	mask = LEON_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpbroadcast));
+	return mask;
+}
+
+int leon_smp_nrcpus(void)
+{
+	int nrcpu =
+	    ((LEON3_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpstatus)) >>
+	      LEON3_IRQMPSTATUS_CPUNR) & 0xf) + 1;
+	return nrcpu;
+}
+
+void __init leon_boot_cpus(void)
+{
+	int nrcpu = leon_smp_nrcpus();
+	int me = smp_processor_id();
+
+	printk(KERN_INFO "%d:(%d:%d) cpus mpirq at 0x%x \n", (unsigned int)me,
+	       (unsigned int)nrcpu, (unsigned int)NR_CPUS,
+	       (unsigned int)&(leon3_irqctrl_regs->mpstatus));
+
+	leon_enable_irq_cpu(LEON3_IRQ_CROSS_CALL, me);
+	leon_enable_irq_cpu(LEON3_IRQ_TICKER, me);
+	leon_enable_irq_cpu(LEON3_IRQ_RESCHEDULE, me);
+
+	leon_smp_setbroadcast(1 << LEON3_IRQ_TICKER);
+
+	leon_configure_cache_smp();
+	smp_setup_percpu_timer();
+	local_flush_cache_all();
+
+}
+
+int __cpuinit leon_boot_one_cpu(int i)
+{
+
+	struct task_struct *p;
+	int timeout;
+
+	/* Cook up an idler for this guy. */
+	p = fork_idle(i);
+
+	current_set[i] = task_thread_info(p);
+
+	/* See trampoline.S:leon_smp_cpu_startup for details...
+	 * Initialize the contexts table
+	 * Since the call to prom_startcpu() trashes the structure,
+	 * we need to re-initialize it for each cpu
+	 */
+	smp_penguin_ctable.which_io = 0;
+	smp_penguin_ctable.phys_addr = (unsigned int)srmmu_ctx_table_phys;
+	smp_penguin_ctable.reg_size = 0;
+
+	/* whirrr, whirrr, whirrrrrrrrr... */
+	printk(KERN_INFO "Starting CPU %d : (irqmp: 0x%x)\n", (unsigned int)i,
+	       (unsigned int)&leon3_irqctrl_regs->mpstatus);
+	local_flush_cache_all();
+
+	LEON_BYPASS_STORE_PA(&(leon3_irqctrl_regs->mpstatus), 1 << i);
+
+	/* wheee... it's going... */
+	for (timeout = 0; timeout < 10000; timeout++) {
+		if (cpu_callin_map[i])
+			break;
+		udelay(200);
+	}
+	printk(KERN_INFO "Started CPU %d \n", (unsigned int)i);
+
+	if (!(cpu_callin_map[i])) {
+		printk(KERN_ERR "Processor %d is stuck.\n", i);
+		return -ENODEV;
+	} else {
+		leon_enable_irq_cpu(LEON3_IRQ_CROSS_CALL, i);
+		leon_enable_irq_cpu(LEON3_IRQ_TICKER, i);
+		leon_enable_irq_cpu(LEON3_IRQ_RESCHEDULE, i);
+	}
+
+	local_flush_cache_all();
+	return 0;
+}
+
+void __init leon_smp_done(void)
+{
+
+	int i, first;
+	int *prev;
+
+	/* setup cpu list for irq rotation */
+	first = 0;
+	prev = &first;
+	for (i = 0; i < NR_CPUS; i++) {
+		if (cpu_online(i)) {
+			*prev = i;
+			prev = &cpu_data(i).next;
+		}
+	}
+	*prev = first;
+	local_flush_cache_all();
+
+	/* Free unneeded trap tables */
+	if (!cpu_isset(1, cpu_present_map)) {
+		ClearPageReserved(virt_to_page(trapbase_cpu1));
+		init_page_count(virt_to_page(trapbase_cpu1));
+		free_page((unsigned long)trapbase_cpu1);
+		totalram_pages++;
+		num_physpages++;
+	}
+	if (!cpu_isset(2, cpu_present_map)) {
+		ClearPageReserved(virt_to_page(trapbase_cpu2));
+		init_page_count(virt_to_page(trapbase_cpu2));
+		free_page((unsigned long)trapbase_cpu2);
+		totalram_pages++;
+		num_physpages++;
+	}
+	if (!cpu_isset(3, cpu_present_map)) {
+		ClearPageReserved(virt_to_page(trapbase_cpu3));
+		init_page_count(virt_to_page(trapbase_cpu3));
+		free_page((unsigned long)trapbase_cpu3);
+		totalram_pages++;
+		num_physpages++;
+	}
+	/* Ok, they are spinning and ready to go. */
+	smp_processors_ready = 1;
+
+}
+
+void leon_irq_rotate(int cpu)
+{
+}
+
+static struct smp_funcall {
+	smpfunc_t func;
+	unsigned long arg1;
+	unsigned long arg2;
+	unsigned long arg3;
+	unsigned long arg4;
+	unsigned long arg5;
+	unsigned long processors_in[NR_CPUS];	/* Set when ipi entered. */
+	unsigned long processors_out[NR_CPUS];	/* Set when ipi exited. */
+} ccall_info;
+
+static DEFINE_SPINLOCK(cross_call_lock);
+
+/* Cross calls must be serialized, at least currently. */
+static void leon_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
+			    unsigned long arg2, unsigned long arg3,
+			    unsigned long arg4)
+{
+	if (smp_processors_ready) {
+		register int high = NR_CPUS - 1;
+		unsigned long flags;
+
+		spin_lock_irqsave(&cross_call_lock, flags);
+
+		{
+			/* If you make changes here, make sure gcc generates proper code... */
+			register smpfunc_t f asm("i0") = func;
+			register unsigned long a1 asm("i1") = arg1;
+			register unsigned long a2 asm("i2") = arg2;
+			register unsigned long a3 asm("i3") = arg3;
+			register unsigned long a4 asm("i4") = arg4;
+			register unsigned long a5 asm("i5") = 0;
+
+			__asm__ __volatile__("std %0, [%6]\n\t"
+					     "std %2, [%6 + 8]\n\t"
+					     "std %4, [%6 + 16]\n\t" : :
+					     "r"(f), "r"(a1), "r"(a2), "r"(a3),
+					     "r"(a4), "r"(a5),
+					     "r"(&ccall_info.func));
+		}
+
+		/* Init receive/complete mapping, plus fire the IPI's off. */
+		{
+			register int i;
+
+			cpu_clear(smp_processor_id(), mask);
+			cpus_and(mask, cpu_online_map, mask);
+			for (i = 0; i <= high; i++) {
+				if (cpu_isset(i, mask)) {
+					ccall_info.processors_in[i] = 0;
+					ccall_info.processors_out[i] = 0;
+					set_cpu_int(i, LEON3_IRQ_CROSS_CALL);
+
+				}
+			}
+		}
+
+		{
+			register int i;
+
+			i = 0;
+			do {
+				if (!cpu_isset(i, mask))
+					continue;
+
+				while (!ccall_info.processors_in[i])
+					barrier();
+			} while (++i <= high);
+
+			i = 0;
+			do {
+				if (!cpu_isset(i, mask))
+					continue;
+
+				while (!ccall_info.processors_out[i])
+					barrier();
+			} while (++i <= high);
+		}
+
+		spin_unlock_irqrestore(&cross_call_lock, flags);
+	}
+}
+
+/* Running cross calls. */
+void leon_cross_call_irq(void)
+{
+	int i = smp_processor_id();
+
+	ccall_info.processors_in[i] = 1;
+	ccall_info.func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3,
+			ccall_info.arg4, ccall_info.arg5);
+	ccall_info.processors_out[i] = 1;
+}
+
+void leon_percpu_timer_interrupt(struct pt_regs *regs)
+{
+	struct pt_regs *old_regs;
+	int cpu = smp_processor_id();
+
+	old_regs = set_irq_regs(regs);
+
+	leon_clear_profile_irq(cpu);
+
+	profile_tick(CPU_PROFILING);
+
+	if (!--prof_counter(cpu)) {
+		int user = user_mode(regs);
+
+		irq_enter();
+		update_process_times(user);
+		irq_exit();
+
+		prof_counter(cpu) = prof_multiplier(cpu);
+	}
+	set_irq_regs(old_regs);
+}
+
+static void __init smp_setup_percpu_timer(void)
+{
+	int cpu = smp_processor_id();
+
+	prof_counter(cpu) = prof_multiplier(cpu) = 1;
+}
+
+void __init leon_blackbox_id(unsigned *addr)
+{
+	int rd = *addr & 0x3e000000;
+	int rs1 = rd >> 11;
+
+	/* patch places where ___b_hard_smp_processor_id appears */
+	addr[0] = 0x81444000 | rd;	/* rd %asr17, reg */
+	addr[1] = 0x8130201c | rd | rs1;	/* srl reg, 0x1c, reg */
+	addr[2] = 0x01000000;	/* nop */
+}
+
+void __init leon_blackbox_current(unsigned *addr)
+{
+	int rd = *addr & 0x3e000000;
+	int rs1 = rd >> 11;
+
+	/* patch LOAD_CURRENT macro where ___b_load_current appears */
+	addr[0] = 0x81444000 | rd;	/* rd %asr17, reg */
+	addr[2] = 0x8130201c | rd | rs1;	/* srl reg, 0x1c, reg */
+	addr[4] = 0x81282002 | rd | rs1;	/* sll reg, 0x2, reg */
+
+}
+
+/*
+ * CPU idle callback function
+ * See .../arch/sparc/kernel/process.c
+ */
+void pmc_leon_idle(void)
+{
+	__asm__ volatile ("mov %g0, %asr19");
+}
+
+void __init leon_init_smp(void)
+{
+	/* Patch ipi15 trap table */
+	t_nmi[1] = t_nmi[1] + (linux_trap_ipi15_leon - linux_trap_ipi15_sun4m);
+
+	BTFIXUPSET_BLACKBOX(hard_smp_processor_id, leon_blackbox_id);
+	BTFIXUPSET_BLACKBOX(load_current, leon_blackbox_current);
+	BTFIXUPSET_CALL(smp_cross_call, leon_cross_call, BTFIXUPCALL_NORM);
+	BTFIXUPSET_CALL(__hard_smp_processor_id, __leon_processor_id,
+			BTFIXUPCALL_NORM);
+
+#ifndef PMC_NO_IDLE
+	/* Assign power management IDLE handler */
+	pm_idle = pmc_leon_idle;
+	printk(KERN_INFO "leon: power management initialized\n");
+#endif
+
+}
+
+#endif /* CONFIG_SPARC_LEON */
diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index f1be37a7b123..e1b0541feb19 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -112,7 +112,7 @@ static void free_msi(struct pci_pbm_info *pbm, int msi_num)
 }
 
 static struct irq_chip msi_irq = {
-	.typename	= "PCI-MSI",
+	.name		= "PCI-MSI",
 	.mask		= mask_msi_irq,
 	.unmask		= unmask_msi_irq,
 	.enable		= unmask_msi_irq,
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 21180339cb09..a2a79e76344f 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -46,6 +46,7 @@
 #include <asm/setup.h>
 #include <asm/mmu.h>
 #include <asm/ns87303.h>
+#include <asm/btext.h>
 
 #ifdef CONFIG_IP_PNP
 #include <net/ipconfig.h>
@@ -286,7 +287,10 @@ void __init setup_arch(char **cmdline_p)
 	parse_early_param();
 
 	boot_flags_init(*cmdline_p);
-	register_console(&prom_early_console);
+#ifdef CONFIG_EARLYFB
+	if (btext_find_display())
+#endif
+		register_console(&prom_early_console);
 
 	if (tlb_type == hypervisor)
 		printk("ARCH: SUN4V\n");
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index 132d81fb2616..91c10fb70858 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -32,6 +32,7 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/cpudata.h>
+#include <asm/leon.h>
 
 #include "irq.h"
 
@@ -96,6 +97,9 @@ void __init smp_cpus_done(unsigned int max_cpus)
 	case sun4d:
 		smp4d_smp_done();
 		break;
+	case sparc_leon:
+		leon_smp_done();
+		break;
 	case sun4e:
 		printk("SUN4E\n");
 		BUG();
@@ -306,6 +310,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	case sun4d:
 		smp4d_boot_cpus();
 		break;
+	case sparc_leon:
+		leon_boot_cpus();
+		break;
 	case sun4e:
 		printk("SUN4E\n");
 		BUG();
@@ -376,6 +383,9 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	case sun4d:
 		ret = smp4d_boot_one_cpu(cpu);
 		break;
+	case sparc_leon:
+		ret = leon_boot_one_cpu(cpu);
+		break;
 	case sun4e:
 		printk("SUN4E\n");
 		BUG();
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index f862372074bc..00abe87e5b51 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -26,11 +26,6 @@
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
 #include <linux/module.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/poll.h>
 #include <linux/personality.h>
 #include <linux/stat.h>
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 614ac7b4a9dd..5b2f595fe65b 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -210,9 +210,6 @@ static void __init sbus_time_init(void)
 	btfixup();
 
 	sparc_init_timers(timer_interrupt);
-	
-	/* Now that OBP ticker has been silenced, it is safe to enable IRQ. */
-	local_irq_enable();
 }
 
 void __init time_init(void)
diff --git a/arch/sparc/kernel/trampoline_32.S b/arch/sparc/kernel/trampoline_32.S
index 5e235c52d667..691f484e03b3 100644
--- a/arch/sparc/kernel/trampoline_32.S
+++ b/arch/sparc/kernel/trampoline_32.S
@@ -15,7 +15,7 @@
 #include <asm/contregs.h>
 #include <asm/thread_info.h>
 
-	.globl sun4m_cpu_startup, __smp4m_processor_id
+	.globl sun4m_cpu_startup, __smp4m_processor_id, __leon_processor_id
 	.globl sun4d_cpu_startup, __smp4d_processor_id
 
 	__CPUINIT
@@ -106,6 +106,12 @@ __smp4d_processor_id:
 	retl
 	 mov	%g1, %o7
 
+__leon_processor_id:
+	rd     %asr17,%g2
+        srl    %g2,28,%g2
+	retl
+	 mov	%g1, %o7
+
 /* CPUID in bootbus can be found at PA 0xff0140000 */
 #define SUN4D_BOOTBUS_CPUID	0xf0140000
 
@@ -160,3 +166,64 @@ sun4d_cpu_startup:
 	 nop
 
 	b,a	smp_do_cpu_idle
+
+#ifdef CONFIG_SPARC_LEON
+
+	__CPUINIT
+	.align	4
+        .global leon_smp_cpu_startup, smp_penguin_ctable
+
+leon_smp_cpu_startup:
+
+        set smp_penguin_ctable,%g1
+        ld [%g1+4],%g1
+        srl %g1,4,%g1
+        set 0x00000100,%g5 /* SRMMU_CTXTBL_PTR */
+	sta %g1, [%g5] ASI_M_MMUREGS
+
+	/* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */
+	set	(PSR_PIL | PSR_S | PSR_PS), %g1
+	wr	%g1, 0x0, %psr		! traps off though
+	WRITE_PAUSE
+
+	/* Our %wim is one behind CWP */
+	mov	2, %g1
+	wr	%g1, 0x0, %wim
+	WRITE_PAUSE
+
+	/* Set tbr - we use just one trap table. */
+	set	trapbase, %g1
+	wr	%g1, 0x0, %tbr
+	WRITE_PAUSE
+
+	/* Get our CPU id */
+        rd     %asr17,%g3
+
+	/* Give ourselves a stack and curptr. */
+	set	current_set, %g5
+	srl	%g3, 28, %g4
+	sll	%g4, 2, %g4
+	ld	[%g5 + %g4], %g6
+
+	sethi	%hi(THREAD_SIZE - STACKFRAME_SZ), %sp
+	or	%sp, %lo(THREAD_SIZE - STACKFRAME_SZ), %sp
+	add	%g6, %sp, %sp
+
+	/* Turn on traps (PSR_ET). */
+	rd	%psr, %g1
+	wr	%g1, PSR_ET, %psr	! traps on
+	WRITE_PAUSE
+
+	/* Init our caches, etc. */
+	set	poke_srmmu, %g5
+	ld	[%g5], %g5
+	call	%g5
+	 nop
+
+	/* Start this processor. */
+	call	leon_callin
+	 nop
+
+	b,a	smp_do_cpu_idle
+
+#endif
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 509b1ffeba66..367321a030dd 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1990,7 +1990,7 @@ void __init poke_leonsparc(void)
 void __init init_leon(void)
 {
 
-	srmmu_name = "Leon";
+	srmmu_name = "LEON";
 
 	BTFIXUPSET_CALL(flush_cache_all, leon_flush_cache_all,
 			BTFIXUPCALL_NORM);
@@ -2037,8 +2037,6 @@ static void __init get_srmmu_type(void)
 
 	/* First, check for sparc-leon. */
 	if (sparc_cpu_model == sparc_leon) {
-		psr_typ = 0xf;	/* hardcoded ids for older models/simulators */
-		psr_vers = 2;
 		init_leon();
 		return;
 	}
@@ -2301,7 +2299,8 @@ void __init ld_mmu_srmmu(void)
 	BTFIXUPSET_CALL(flush_cache_mm, smp_flush_cache_mm, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(flush_cache_range, smp_flush_cache_range, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(flush_cache_page, smp_flush_cache_page, BTFIXUPCALL_NORM);
-	if (sparc_cpu_model != sun4d) {
+	if (sparc_cpu_model != sun4d &&
+	    sparc_cpu_model != sparc_leon) {
 		BTFIXUPSET_CALL(flush_tlb_all, smp_flush_tlb_all, BTFIXUPCALL_NORM);
 		BTFIXUPSET_CALL(flush_tlb_mm, smp_flush_tlb_mm, BTFIXUPCALL_NORM);
 		BTFIXUPSET_CALL(flush_tlb_range, smp_flush_tlb_range, BTFIXUPCALL_NORM);
@@ -2330,6 +2329,8 @@ void __init ld_mmu_srmmu(void)
 #ifdef CONFIG_SMP
 	if (sparc_cpu_model == sun4d)
 		sun4d_init_smp();
+	else if (sparc_cpu_model == sparc_leon)
+		leon_init_smp();
 	else
 		sun4m_init_smp();
 #endif
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index e52257257279..50943ff78f4b 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1477,4 +1477,17 @@ config SERIAL_BCM63XX_CONSOLE
 	  If you have enabled the serial port on the bcm63xx CPU
 	  you can make it the console by answering Y to this option.
 
+config SERIAL_GRLIB_GAISLER_APBUART
+	tristate "GRLIB APBUART serial support"
+	depends on OF
+	---help---
+	Add support for the GRLIB APBUART serial port.
+
+config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
+	bool "Console on GRLIB APBUART serial port"
+	depends on SERIAL_GRLIB_GAISLER_APBUART=y
+	select SERIAL_CORE_CONSOLE
+	help
+	Support for running a console on the GRLIB APBUART
+
 endmenu
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index d21d5dd5d048..5548fe7df61d 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -81,3 +81,4 @@ obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
 obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
 obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
 obj-$(CONFIG_SERIAL_TIMBERDALE)	+= timbuart.o
+obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUART) += apbuart.o
diff --git a/drivers/serial/apbuart.c b/drivers/serial/apbuart.c
new file mode 100644
index 000000000000..fe91319b5f65
--- /dev/null
+++ b/drivers/serial/apbuart.c
@@ -0,0 +1,710 @@
+/*
+ *  Driver for GRLIB serial ports (APBUART)
+ *
+ *  Based on linux/drivers/serial/amba.c
+ *
+ *  Copyright (C) 2000 Deep Blue Solutions Ltd.
+ *  Copyright (C) 2003 Konrad Eisele <eiselekd@web.de>
+ *  Copyright (C) 2006 Daniel Hellstrom <daniel@gaisler.com>, Aeroflex Gaisler AB
+ *  Copyright (C) 2008 Gilead Kutnick <kutnickg@zin-tech.com>
+ *  Copyright (C) 2009 Kristoffer Glembo <kristoffer@gaisler.com>, Aeroflex Gaisler AB
+ */
+
+#if defined(CONFIG_SERIAL_GRLIB_GAISLER_APBUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <linux/console.h>
+#include <linux/sysrq.h>
+#include <linux/kthread.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/serial_core.h>
+#include <asm/irq.h>
+
+#include "apbuart.h"
+
+#define SERIAL_APBUART_MAJOR	TTY_MAJOR
+#define SERIAL_APBUART_MINOR	64
+#define UART_DUMMY_RSR_RX	0x8000	/* for ignore all read */
+
+static void apbuart_tx_chars(struct uart_port *port);
+
+static void apbuart_stop_tx(struct uart_port *port)
+{
+	unsigned int cr;
+
+	cr = UART_GET_CTRL(port);
+	cr &= ~UART_CTRL_TI;
+	UART_PUT_CTRL(port, cr);
+}
+
+static void apbuart_start_tx(struct uart_port *port)
+{
+	unsigned int cr;
+
+	cr = UART_GET_CTRL(port);
+	cr |= UART_CTRL_TI;
+	UART_PUT_CTRL(port, cr);
+
+	if (UART_GET_STATUS(port) & UART_STATUS_THE)
+		apbuart_tx_chars(port);
+}
+
+static void apbuart_stop_rx(struct uart_port *port)
+{
+	unsigned int cr;
+
+	cr = UART_GET_CTRL(port);
+	cr &= ~(UART_CTRL_RI);
+	UART_PUT_CTRL(port, cr);
+}
+
+static void apbuart_enable_ms(struct uart_port *port)
+{
+	/* No modem status change interrupts for APBUART */
+}
+
+static void apbuart_rx_chars(struct uart_port *port)
+{
+	struct tty_struct *tty = port->state->port.tty;
+	unsigned int status, ch, rsr, flag;
+	unsigned int max_chars = port->fifosize;
+
+	status = UART_GET_STATUS(port);
+
+	while (UART_RX_DATA(status) && (max_chars--)) {
+
+		ch = UART_GET_CHAR(port);
+		flag = TTY_NORMAL;
+
+		port->icount.rx++;
+
+		rsr = UART_GET_STATUS(port) | UART_DUMMY_RSR_RX;
+		UART_PUT_STATUS(port, 0);
+		if (rsr & UART_STATUS_ERR) {
+
+			if (rsr & UART_STATUS_BR) {
+				rsr &= ~(UART_STATUS_FE | UART_STATUS_PE);
+				port->icount.brk++;
+				if (uart_handle_break(port))
+					goto ignore_char;
+			} else if (rsr & UART_STATUS_PE) {
+				port->icount.parity++;
+			} else if (rsr & UART_STATUS_FE) {
+				port->icount.frame++;
+			}
+			if (rsr & UART_STATUS_OE)
+				port->icount.overrun++;
+
+			rsr &= port->read_status_mask;
+
+			if (rsr & UART_STATUS_PE)
+				flag = TTY_PARITY;
+			else if (rsr & UART_STATUS_FE)
+				flag = TTY_FRAME;
+		}
+
+		if (uart_handle_sysrq_char(port, ch))
+			goto ignore_char;
+
+		uart_insert_char(port, rsr, UART_STATUS_OE, ch, flag);
+
+
+	      ignore_char:
+		status = UART_GET_STATUS(port);
+	}
+
+	tty_flip_buffer_push(tty);
+}
+
+static void apbuart_tx_chars(struct uart_port *port)
+{
+	struct circ_buf *xmit = &port->state->xmit;
+	int count;
+
+	if (port->x_char) {
+		UART_PUT_CHAR(port, port->x_char);
+		port->icount.tx++;
+		port->x_char = 0;
+		return;
+	}
+
+	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+		apbuart_stop_tx(port);
+		return;
+	}
+
+	/* amba: fill FIFO */
+	count = port->fifosize >> 1;
+	do {
+		UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+		if (uart_circ_empty(xmit))
+			break;
+	} while (--count > 0);
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+
+	if (uart_circ_empty(xmit))
+		apbuart_stop_tx(port);
+}
+
+static irqreturn_t apbuart_int(int irq, void *dev_id)
+{
+	struct uart_port *port = dev_id;
+	unsigned int status;
+
+	spin_lock(&port->lock);
+
+	status = UART_GET_STATUS(port);
+	if (status & UART_STATUS_DR)
+		apbuart_rx_chars(port);
+	if (status & UART_STATUS_THE)
+		apbuart_tx_chars(port);
+
+	spin_unlock(&port->lock);
+
+	return IRQ_HANDLED;
+}
+
+static unsigned int apbuart_tx_empty(struct uart_port *port)
+{
+	unsigned int status = UART_GET_STATUS(port);
+	return status & UART_STATUS_THE ? TIOCSER_TEMT : 0;
+}
+
+static unsigned int apbuart_get_mctrl(struct uart_port *port)
+{
+	/* The GRLIB APBUART handles flow control in hardware */
+	return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
+}
+
+static void apbuart_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	/* The GRLIB APBUART handles flow control in hardware */
+}
+
+static void apbuart_break_ctl(struct uart_port *port, int break_state)
+{
+	/* We don't support sending break */
+}
+
+static int apbuart_startup(struct uart_port *port)
+{
+	int retval;
+	unsigned int cr;
+
+	/* Allocate the IRQ */
+	retval = request_irq(port->irq, apbuart_int, 0, "apbuart", port);
+	if (retval)
+		return retval;
+
+	/* Finally, enable interrupts */
+	cr = UART_GET_CTRL(port);
+	UART_PUT_CTRL(port,
+		      cr | UART_CTRL_RE | UART_CTRL_TE |
+		      UART_CTRL_RI | UART_CTRL_TI);
+
+	return 0;
+}
+
+static void apbuart_shutdown(struct uart_port *port)
+{
+	unsigned int cr;
+
+	/* disable all interrupts, disable the port */
+	cr = UART_GET_CTRL(port);
+	UART_PUT_CTRL(port,
+		      cr & ~(UART_CTRL_RE | UART_CTRL_TE |
+			     UART_CTRL_RI | UART_CTRL_TI));
+
+	/* Free the interrupt */
+	free_irq(port->irq, port);
+}
+
+static void apbuart_set_termios(struct uart_port *port,
+				struct ktermios *termios, struct ktermios *old)
+{
+	unsigned int cr;
+	unsigned long flags;
+	unsigned int baud, quot;
+
+	/* Ask the core to calculate the divisor for us. */
+	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16);
+	if (baud == 0)
+		panic("invalid baudrate %i\n", port->uartclk / 16);
+
+	/* uart_get_divisor calc a *16 uart freq, apbuart is *8 */
+	quot = (uart_get_divisor(port, baud)) * 2;
+	cr = UART_GET_CTRL(port);
+	cr &= ~(UART_CTRL_PE | UART_CTRL_PS);
+
+	if (termios->c_cflag & PARENB) {
+		cr |= UART_CTRL_PE;
+		if ((termios->c_cflag & PARODD))
+			cr |= UART_CTRL_PS;
+	}
+
+	/* Enable flow control. */
+	if (termios->c_cflag & CRTSCTS)
+		cr |= UART_CTRL_FL;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	/* Update the per-port timeout. */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	port->read_status_mask = UART_STATUS_OE;
+	if (termios->c_iflag & INPCK)
+		port->read_status_mask |= UART_STATUS_FE | UART_STATUS_PE;
+
+	/* Characters to ignore */
+	port->ignore_status_mask = 0;
+	if (termios->c_iflag & IGNPAR)
+		port->ignore_status_mask |= UART_STATUS_FE | UART_STATUS_PE;
+
+	/* Ignore all characters if CREAD is not set. */
+	if ((termios->c_cflag & CREAD) == 0)
+		port->ignore_status_mask |= UART_DUMMY_RSR_RX;
+
+	/* Set baud rate */
+	quot -= 1;
+	UART_PUT_SCAL(port, quot);
+	UART_PUT_CTRL(port, cr);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static const char *apbuart_type(struct uart_port *port)
+{
+	return port->type == PORT_APBUART ? "GRLIB/APBUART" : NULL;
+}
+
+static void apbuart_release_port(struct uart_port *port)
+{
+	release_mem_region(port->mapbase, 0x100);
+}
+
+static int apbuart_request_port(struct uart_port *port)
+{
+	return request_mem_region(port->mapbase, 0x100, "grlib-apbuart")
+	    != NULL ? 0 : -EBUSY;
+	return 0;
+}
+
+/* Configure/autoconfigure the port */
+static void apbuart_config_port(struct uart_port *port, int flags)
+{
+	if (flags & UART_CONFIG_TYPE) {
+		port->type = PORT_APBUART;
+		apbuart_request_port(port);
+	}
+}
+
+/* Verify the new serial_struct (for TIOCSSERIAL) */
+static int apbuart_verify_port(struct uart_port *port,
+			       struct serial_struct *ser)
+{
+	int ret = 0;
+	if (ser->type != PORT_UNKNOWN && ser->type != PORT_APBUART)
+		ret = -EINVAL;
+	if (ser->irq < 0 || ser->irq >= NR_IRQS)
+		ret = -EINVAL;
+	if (ser->baud_base < 9600)
+		ret = -EINVAL;
+	return ret;
+}
+
+static struct uart_ops grlib_apbuart_ops = {
+	.tx_empty = apbuart_tx_empty,
+	.set_mctrl = apbuart_set_mctrl,
+	.get_mctrl = apbuart_get_mctrl,
+	.stop_tx = apbuart_stop_tx,
+	.start_tx = apbuart_start_tx,
+	.stop_rx = apbuart_stop_rx,
+	.enable_ms = apbuart_enable_ms,
+	.break_ctl = apbuart_break_ctl,
+	.startup = apbuart_startup,
+	.shutdown = apbuart_shutdown,
+	.set_termios = apbuart_set_termios,
+	.type = apbuart_type,
+	.release_port = apbuart_release_port,
+	.request_port = apbuart_request_port,
+	.config_port = apbuart_config_port,
+	.verify_port = apbuart_verify_port,
+};
+
+static struct uart_port grlib_apbuart_ports[UART_NR];
+static struct device_node *grlib_apbuart_nodes[UART_NR];
+
+static int apbuart_scan_fifo_size(struct uart_port *port, int portnumber)
+{
+	int ctrl, loop = 0;
+	int status;
+	int fifosize;
+	unsigned long flags;
+
+	ctrl = UART_GET_CTRL(port);
+
+	/*
+	 * Enable the transceiver and wait for it to be ready to send data.
+	 * Clear interrupts so that this process will not be externally
+	 * interrupted in the middle (which can cause the transceiver to
+	 * drain prematurely).
+	 */
+
+	local_irq_save(flags);
+
+	UART_PUT_CTRL(port, ctrl | UART_CTRL_TE);
+
+	while (!UART_TX_READY(UART_GET_STATUS(port)))
+		loop++;
+
+	/*
+	 * Disable the transceiver so data isn't actually sent during the
+	 * actual test.
+	 */
+
+	UART_PUT_CTRL(port, ctrl & ~(UART_CTRL_TE));
+
+	fifosize = 1;
+	UART_PUT_CHAR(port, 0);
+
+	/*
+	 * So long as transmitting a character increments the tranceivier FIFO
+	 * length the FIFO must be at least that big. These bytes will
+	 * automatically drain off of the FIFO.
+	 */
+
+	status = UART_GET_STATUS(port);
+	while (((status >> 20) & 0x3F) == fifosize) {
+		fifosize++;
+		UART_PUT_CHAR(port, 0);
+		status = UART_GET_STATUS(port);
+	}
+
+	fifosize--;
+
+	UART_PUT_CTRL(port, ctrl);
+	local_irq_restore(flags);
+
+	if (fifosize == 0)
+		fifosize = 1;
+
+	return fifosize;
+}
+
+static void apbuart_flush_fifo(struct uart_port *port)
+{
+	int i;
+
+	for (i = 0; i < port->fifosize; i++)
+		UART_GET_CHAR(port);
+}
+
+
+/* ======================================================================== */
+/* Console driver, if enabled                                               */
+/* ======================================================================== */
+
+#ifdef CONFIG_SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
+
+static void apbuart_console_putchar(struct uart_port *port, int ch)
+{
+	unsigned int status;
+	do {
+		status = UART_GET_STATUS(port);
+	} while (!UART_TX_READY(status));
+	UART_PUT_CHAR(port, ch);
+}
+
+static void
+apbuart_console_write(struct console *co, const char *s, unsigned int count)
+{
+	struct uart_port *port = &grlib_apbuart_ports[co->index];
+	unsigned int status, old_cr, new_cr;
+
+	/* First save the CR then disable the interrupts */
+	old_cr = UART_GET_CTRL(port);
+	new_cr = old_cr & ~(UART_CTRL_RI | UART_CTRL_TI);
+	UART_PUT_CTRL(port, new_cr);
+
+	uart_console_write(port, s, count, apbuart_console_putchar);
+
+	/*
+	 *      Finally, wait for transmitter to become empty
+	 *      and restore the TCR
+	 */
+	do {
+		status = UART_GET_STATUS(port);
+	} while (!UART_TX_READY(status));
+	UART_PUT_CTRL(port, old_cr);
+}
+
+static void __init
+apbuart_console_get_options(struct uart_port *port, int *baud,
+			    int *parity, int *bits)
+{
+	if (UART_GET_CTRL(port) & (UART_CTRL_RE | UART_CTRL_TE)) {
+
+		unsigned int quot, status;
+		status = UART_GET_STATUS(port);
+
+		*parity = 'n';
+		if (status & UART_CTRL_PE) {
+			if ((status & UART_CTRL_PS) == 0)
+				*parity = 'e';
+			else
+				*parity = 'o';
+		}
+
+		*bits = 8;
+		quot = UART_GET_SCAL(port) / 8;
+		*baud = port->uartclk / (16 * (quot + 1));
+	}
+}
+
+static int __init apbuart_console_setup(struct console *co, char *options)
+{
+	struct uart_port *port;
+	int baud = 38400;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+
+	pr_debug("apbuart_console_setup co=%p, co->index=%i, options=%s\n",
+		 co, co->index, options);
+
+	/*
+	 * Check whether an invalid uart number has been specified, and
+	 * if so, search for the first available port that does have
+	 * console support.
+	 */
+	if (co->index >= grlib_apbuart_port_nr)
+		co->index = 0;
+
+	port = &grlib_apbuart_ports[co->index];
+
+	spin_lock_init(&port->lock);
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+	else
+		apbuart_console_get_options(port, &baud, &parity, &bits);
+
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+
+static struct uart_driver grlib_apbuart_driver;
+
+static struct console grlib_apbuart_console = {
+	.name = "ttyS",
+	.write = apbuart_console_write,
+	.device = uart_console_device,
+	.setup = apbuart_console_setup,
+	.flags = CON_PRINTBUFFER,
+	.index = -1,
+	.data = &grlib_apbuart_driver,
+};
+
+
+static void grlib_apbuart_configure(void);
+
+static int __init apbuart_console_init(void)
+{
+	grlib_apbuart_configure();
+	register_console(&grlib_apbuart_console);
+	return 0;
+}
+
+console_initcall(apbuart_console_init);
+
+#define APBUART_CONSOLE	(&grlib_apbuart_console)
+#else
+#define APBUART_CONSOLE	NULL
+#endif
+
+static struct uart_driver grlib_apbuart_driver = {
+	.owner = THIS_MODULE,
+	.driver_name = "serial",
+	.dev_name = "ttyS",
+	.major = SERIAL_APBUART_MAJOR,
+	.minor = SERIAL_APBUART_MINOR,
+	.nr = UART_NR,
+	.cons = APBUART_CONSOLE,
+};
+
+
+/* ======================================================================== */
+/* OF Platform Driver                                                       */
+/* ======================================================================== */
+
+static int __devinit apbuart_probe(struct of_device *op,
+				   const struct of_device_id *match)
+{
+	int i = -1;
+	struct uart_port *port = NULL;
+
+	i = 0;
+	for (i = 0; i < grlib_apbuart_port_nr; i++) {
+		if (op->node == grlib_apbuart_nodes[i])
+			break;
+	}
+
+	port = &grlib_apbuart_ports[i];
+	port->dev = &op->dev;
+
+	uart_add_one_port(&grlib_apbuart_driver, (struct uart_port *) port);
+
+	apbuart_flush_fifo((struct uart_port *) port);
+
+	printk(KERN_INFO "grlib-apbuart at 0x%llx, irq %d\n",
+	       (unsigned long long) port->mapbase, port->irq);
+	return 0;
+
+}
+
+static struct of_device_id __initdata apbuart_match[] = {
+	{
+	 .name = "GAISLER_APBUART",
+	 },
+	{},
+};
+
+static struct of_platform_driver grlib_apbuart_of_driver = {
+	.match_table = apbuart_match,
+	.probe = apbuart_probe,
+	.driver = {
+		   .owner = THIS_MODULE,
+		   .name = "grlib-apbuart",
+		   },
+};
+
+
+static void grlib_apbuart_configure(void)
+{
+	static int enum_done;
+	struct device_node *np, *rp;
+	struct uart_port *port = NULL;
+	const u32 *prop;
+	int freq_khz;
+	int v = 0, d = 0;
+	unsigned int addr;
+	int irq, line;
+	struct amba_prom_registers *regs;
+
+	if (enum_done)
+		return;
+
+	/* Get bus frequency */
+	rp = of_find_node_by_path("/");
+	rp = of_get_next_child(rp, NULL);
+	prop = of_get_property(rp, "clock-frequency", NULL);
+	freq_khz = *prop;
+
+	line = 0;
+	for_each_matching_node(np, apbuart_match) {
+
+		int *vendor = (int *) of_get_property(np, "vendor", NULL);
+		int *device = (int *) of_get_property(np, "device", NULL);
+		int *irqs = (int *) of_get_property(np, "interrupts", NULL);
+		regs = (struct amba_prom_registers *)
+		    of_get_property(np, "reg", NULL);
+
+		if (vendor)
+			v = *vendor;
+		if (device)
+			d = *device;
+
+		if (!irqs || !regs)
+			return;
+
+		grlib_apbuart_nodes[line] = np;
+
+		addr = regs->phys_addr;
+		irq = *irqs;
+
+		port = &grlib_apbuart_ports[line];
+
+		port->mapbase = addr;
+		port->membase = ioremap(addr, sizeof(struct grlib_apbuart_regs_map));
+		port->irq = irq;
+		port->iotype = UPIO_MEM;
+		port->ops = &grlib_apbuart_ops;
+		port->flags = UPF_BOOT_AUTOCONF;
+		port->line = line;
+		port->uartclk = freq_khz * 1000;
+		port->fifosize = apbuart_scan_fifo_size((struct uart_port *) port, line);
+		line++;
+
+		/* We support maximum UART_NR uarts ... */
+		if (line == UART_NR)
+			break;
+
+	}
+
+	enum_done = 1;
+
+	grlib_apbuart_driver.nr = grlib_apbuart_port_nr = line;
+}
+
+static int __init grlib_apbuart_init(void)
+{
+	int ret;
+
+	/* Find all APBUARTS in device the tree and initialize their ports */
+	grlib_apbuart_configure();
+
+	printk(KERN_INFO "Serial: GRLIB APBUART driver\n");
+
+	ret = uart_register_driver(&grlib_apbuart_driver);
+
+	if (ret) {
+		printk(KERN_ERR "%s: uart_register_driver failed (%i)\n",
+		       __FILE__, ret);
+		return ret;
+	}
+
+	ret = of_register_platform_driver(&grlib_apbuart_of_driver);
+	if (ret) {
+		printk(KERN_ERR
+		       "%s: of_register_platform_driver failed (%i)\n",
+		       __FILE__, ret);
+		uart_unregister_driver(&grlib_apbuart_driver);
+		return ret;
+	}
+
+	return ret;
+}
+
+static void __exit grlib_apbuart_exit(void)
+{
+	int i;
+
+	for (i = 0; i < grlib_apbuart_port_nr; i++)
+		uart_remove_one_port(&grlib_apbuart_driver,
+				     &grlib_apbuart_ports[i]);
+
+	uart_unregister_driver(&grlib_apbuart_driver);
+	of_unregister_platform_driver(&grlib_apbuart_of_driver);
+}
+
+module_init(grlib_apbuart_init);
+module_exit(grlib_apbuart_exit);
+
+MODULE_AUTHOR("Aeroflex Gaisler AB");
+MODULE_DESCRIPTION("GRLIB APBUART serial driver");
+MODULE_VERSION("2.1");
+MODULE_LICENSE("GPL");
diff --git a/drivers/serial/apbuart.h b/drivers/serial/apbuart.h
new file mode 100644
index 000000000000..5faf87c8d2bc
--- /dev/null
+++ b/drivers/serial/apbuart.h
@@ -0,0 +1,64 @@
+#ifndef __GRLIB_APBUART_H__
+#define __GRLIB_APBUART_H__
+
+#include <asm/io.h>
+
+#define UART_NR		8
+static int grlib_apbuart_port_nr;
+
+struct grlib_apbuart_regs_map {
+	u32 data;
+	u32 status;
+	u32 ctrl;
+	u32 scaler;
+};
+
+struct amba_prom_registers {
+	unsigned int phys_addr;
+	unsigned int reg_size;
+};
+
+/*
+ *  The following defines the bits in the APBUART Status Registers.
+ */
+#define UART_STATUS_DR   0x00000001	/* Data Ready */
+#define UART_STATUS_TSE  0x00000002	/* TX Send Register Empty */
+#define UART_STATUS_THE  0x00000004	/* TX Hold Register Empty */
+#define UART_STATUS_BR   0x00000008	/* Break Error */
+#define UART_STATUS_OE   0x00000010	/* RX Overrun Error */
+#define UART_STATUS_PE   0x00000020	/* RX Parity Error */
+#define UART_STATUS_FE   0x00000040	/* RX Framing Error */
+#define UART_STATUS_ERR  0x00000078	/* Error Mask */
+
+/*
+ *  The following defines the bits in the APBUART Ctrl Registers.
+ */
+#define UART_CTRL_RE     0x00000001	/* Receiver enable */
+#define UART_CTRL_TE     0x00000002	/* Transmitter enable */
+#define UART_CTRL_RI     0x00000004	/* Receiver interrupt enable */
+#define UART_CTRL_TI     0x00000008	/* Transmitter irq */
+#define UART_CTRL_PS     0x00000010	/* Parity select */
+#define UART_CTRL_PE     0x00000020	/* Parity enable */
+#define UART_CTRL_FL     0x00000040	/* Flow control enable */
+#define UART_CTRL_LB     0x00000080	/* Loopback enable */
+
+#define APBBASE(port) ((struct grlib_apbuart_regs_map *)((port)->membase))
+
+#define APBBASE_DATA_P(port)	(&(APBBASE(port)->data))
+#define APBBASE_STATUS_P(port)	(&(APBBASE(port)->status))
+#define APBBASE_CTRL_P(port)	(&(APBBASE(port)->ctrl))
+#define APBBASE_SCALAR_P(port)	(&(APBBASE(port)->scaler))
+
+#define UART_GET_CHAR(port)	(__raw_readl(APBBASE_DATA_P(port)))
+#define UART_PUT_CHAR(port, v)	(__raw_writel(v, APBBASE_DATA_P(port)))
+#define UART_GET_STATUS(port)	(__raw_readl(APBBASE_STATUS_P(port)))
+#define UART_PUT_STATUS(port, v)(__raw_writel(v, APBBASE_STATUS_P(port)))
+#define UART_GET_CTRL(port)	(__raw_readl(APBBASE_CTRL_P(port)))
+#define UART_PUT_CTRL(port, v)	(__raw_writel(v, APBBASE_CTRL_P(port)))
+#define UART_GET_SCAL(port)	(__raw_readl(APBBASE_SCALAR_P(port)))
+#define UART_PUT_SCAL(port, v)	(__raw_writel(v, APBBASE_SCALAR_P(port)))
+
+#define UART_RX_DATA(s)		(((s) & UART_STATUS_DR) != 0)
+#define UART_TX_READY(s)	(((s) & UART_STATUS_THE) != 0)
+
+#endif /* __GRLIB_APBUART_H__ */
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index d3c824dc2358..c14ae8676903 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -10,7 +10,6 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
 #include <linux/watchdog.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -75,7 +74,6 @@ static void riowd_writereg(struct riowd *p, u8 val, int index)
 
 static int riowd_open(struct inode *inode, struct file *filp)
 {
-	cycle_kernel_lock();
 	nonseekable_open(inode, filp);
 	return 0;
 }
@@ -194,6 +192,8 @@ static int __devinit riowd_probe(struct of_device *op,
 		printk(KERN_ERR PFX "Cannot map registers.\n");
 		goto out_free;
 	}
+	/* Make miscdev useable right away */
+	riowd_device = p;
 
 	err = misc_register(&riowd_miscdev);
 	if (err) {
@@ -205,10 +205,10 @@ static int __devinit riowd_probe(struct of_device *op,
 	       "regs at %p\n", riowd_timeout, p->regs);
 
 	dev_set_drvdata(&op->dev, p);
-	riowd_device = p;
 	return 0;
 
 out_iounmap:
+	riowd_device = NULL;
 	of_iounmap(&op->resource[0], p->regs, 2);
 
 out_free:
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index db532ce288be..8c3dd36fe91a 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -179,6 +179,9 @@
 /* BCM63xx family SoCs */
 #define PORT_BCM63XX	89
 
+/* Aeroflex Gaisler GRLIB APBUART */
+#define PORT_APBUART    90
+
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>
author	Linus Torvalds <torvalds@linux-foundation.org>	2009-12-08 07:48:23 -0800
committer	Linus Torvalds <torvalds@linux-foundation.org>	2009-12-08 07:48:23 -0800
commit	ee1262dbc65ce0b6234a915d8432171e8d77f518 (patch)
tree	3a4003800d170de691b2e6a9c93c0ca6795678bf
parent	a421018e8c10e5593a1fee076af72a66c3fe8ca3 (diff)
parent	7f5620a5fcd658f219e85831d3691908f1eccbde (diff)
download	linux-ee1262dbc65ce0b6234a915d8432171e8d77f518.tar.gz