Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

12 files changed, 408 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ebsa110/debug-macro.S b/include/asm-arm/arch-ebsa110/debug-macro.S
new file mode 100644
index 00000000000..dcd03a40c50
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/debug-macro.S
@@ -0,0 +1,34 @@
+/* linux/include/asm-arm/arch-ebsa110/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+**/
+
+		.macro	addruart,rx
+		mov	\rx, #0xf0000000
+		orr	\rx, \rx, #0x00000be0
+		.endm
+
+		.macro	senduart,rd,rx
+		strb	\rd, [\rx]
+		.endm
+
+		.macro	busyuart,rd,rx
+1002:		ldrb	\rd, [\rx, #0x14]
+		and	\rd, \rd, #0x60
+		teq	\rd, #0x60
+		bne	1002b
+		.endm
+
+		.macro	waituart,rd,rx
+1001:		ldrb	\rd, [\rx, #0x18]
+		tst	\rd, #0x10
+		beq	1001b
+		.endm
diff --git a/include/asm-arm/arch-ebsa110/dma.h b/include/asm-arm/arch-ebsa110/dma.h
new file mode 100644
index 00000000000..d491776ac1c
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/dma.h
@@ -0,0 +1,19 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/dma.h
+ *
+ *  Copyright (C) 1997,1998 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  EBSA110 DMA definitions
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#define MAX_DMA_ADDRESS		0xffffffff
+#define MAX_DMA_CHANNELS	0
+
+#endif /* _ASM_ARCH_DMA_H */
+
diff --git a/include/asm-arm/arch-ebsa110/entry-macro.S b/include/asm-arm/arch-ebsa110/entry-macro.S
new file mode 100644
index 00000000000..b12ca04f998
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/entry-macro.S
@@ -0,0 +1,33 @@
+/*
+ * include/asm-arm/arch-ebsa110/entry-macro.S
+ *
+ * Low-level IRQ helper macros for ebsa110 platform.
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+
+
+#define IRQ_STAT		0xff000000	/* read */
+
+	.macro	disable_fiq
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, stat, base, tmp
+	mov	\base, #IRQ_STAT
+	ldrb	\stat, [\base]			@ get interrupts
+	mov	\irqnr, #0
+	tst	\stat, #15
+	addeq	\irqnr, \irqnr, #4
+	moveq	\stat, \stat, lsr #4
+	tst	\stat, #3
+	addeq	\irqnr, \irqnr, #2
+	moveq	\stat, \stat, lsr #2
+	tst	\stat, #1
+	addeq	\irqnr, \irqnr, #1
+	moveq	\stat, \stat, lsr #1
+	tst	\stat, #1			@ bit 0 should be set
+	.endm
+
diff --git a/include/asm-arm/arch-ebsa110/hardware.h b/include/asm-arm/arch-ebsa110/hardware.h
new file mode 100644
index 00000000000..4e41c2358f4
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/hardware.h
@@ -0,0 +1,66 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/hardware.h
+ *
+ *  Copyright (C) 1996-2000 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file contains the hardware definitions of the EBSA-110.
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+/*
+ * The EBSA110 has a weird "ISA IO" region:
+ *
+ * Region 0 (addr = 0xf0000000 + io << 2)
+ * --------------------------------------------------------
+ * Physical region	IO region
+ * f0000fe0 - f0000ffc	3f8 - 3ff  ttyS0
+ * f0000e60 - f0000e64	398 - 399
+ * f0000de0 - f0000dfc	378 - 37f  lp0
+ * f0000be0 - f0000bfc	2f8 - 2ff  ttyS1
+ *
+ * Region 1 (addr = 0xf0000000 + (io & ~1) << 1 + (io & 1))
+ * --------------------------------------------------------
+ * Physical region	IO region
+ * f00014f1             a79        pnp write data
+ * f00007c0 - f00007c1	3e0 - 3e1  pcmcia
+ * f00004f1		279        pnp address
+ * f0000440 - f000046c  220 - 236  eth0
+ * f0000405		203        pnp read data
+ */
+
+#define ISAMEM_PHYS		0xe0000000
+#define ISAMEM_SIZE		0x10000000
+
+#define ISAIO_PHYS		0xf0000000
+#define ISAIO_SIZE		PGDIR_SIZE
+
+#define TRICK0_PHYS		0xf2000000
+#define TRICK1_PHYS		0xf2400000
+#define TRICK2_PHYS		0xf2800000
+#define TRICK3_PHYS		0xf2c00000
+#define TRICK4_PHYS		0xf3000000
+#define TRICK5_PHYS		0xf3400000
+#define TRICK6_PHYS		0xf3800000
+#define TRICK7_PHYS		0xf3c00000
+
+#define ISAMEM_BASE		0xe0000000
+#define ISAIO_BASE		0xf0000000
+
+#define PIT_BASE		0xfc000000
+#define SOFT_BASE		0xfd000000
+
+/*
+ * RAM definitions
+ */
+#define FLUSH_BASE_PHYS		0x40000000
+#define FLUSH_BASE		0xdf000000
+
+#define UNCACHEABLE_ADDR	0xff000000	/* IRQ_STAT */
+
+#endif
+
diff --git a/include/asm-arm/arch-ebsa110/io.h b/include/asm-arm/arch-ebsa110/io.h
new file mode 100644
index 00000000000..68e04c0bb3f
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/io.h
@@ -0,0 +1,78 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/io.h
+ *
+ *  Copyright (C) 1997,1998 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Modifications:
+ *  06-Dec-1997	RMK	Created.
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffff
+
+u8 __inb8(unsigned int port);
+void __outb8(u8  val, unsigned int port);
+
+u8 __inb16(unsigned int port);
+void __outb16(u8  val, unsigned int port);
+
+u16 __inw(unsigned int port);
+void __outw(u16 val, unsigned int port);
+
+u32 __inl(unsigned int port);
+void __outl(u32 val, unsigned int port);
+
+u8  __readb(void __iomem *addr);
+u16 __readw(void __iomem *addr);
+u32 __readl(void __iomem *addr);
+
+void __writeb(u8  val, void __iomem *addr);
+void __writew(u16 val, void __iomem *addr);
+void __writel(u32 val, void __iomem *addr);
+
+/*
+ * Argh, someone forgot the IOCS16 line.  We therefore have to handle
+ * the byte stearing by selecting the correct byte IO functions here.
+ */
+#ifdef ISA_SIXTEEN_BIT_PERIPHERAL
+#define inb(p) 			__inb16(p)
+#define outb(v,p)		__outb16(v,p)
+#else
+#define inb(p)			__inb8(p)
+#define outb(v,p)		__outb8(v,p)
+#endif
+
+#define inw(p)			__inw(p)
+#define outw(v,p)		__outw(v,p)
+
+#define inl(p)			__inl(p)
+#define outl(v,p)		__outl(v,p)
+
+#define readb(b)		__readb(b)
+#define readw(b)		__readw(b)
+#define readl(b)		__readl(b)
+#define readb_relaxed(addr)	readb(addr)
+#define readw_relaxed(addr)	readw(addr)
+#define readl_relaxed(addr)	readl(addr)
+
+#define writeb(v,b)		__writeb(v,b)
+#define writew(v,b)		__writew(v,b)
+#define writel(v,b)		__writel(v,b)
+
+#define __arch_ioremap(cookie,sz,c,a)	((void __iomem *)(cookie))
+#define __arch_iounmap(cookie)		do { } while (0)
+
+extern void insb(unsigned int port, void *buf, int sz);
+extern void insw(unsigned int port, void *buf, int sz);
+extern void insl(unsigned int port, void *buf, int sz);
+
+extern void outsb(unsigned int port, const void *buf, int sz);
+extern void outsw(unsigned int port, const void *buf, int sz);
+extern void outsl(unsigned int port, const void *buf, int sz);
+
+#endif
diff --git a/include/asm-arm/arch-ebsa110/irqs.h b/include/asm-arm/arch-ebsa110/irqs.h
new file mode 100644
index 00000000000..ded9bd9d7b8
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/irqs.h
@@ -0,0 +1,20 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/irqs.h
+ *
+ *  Copyright (C) 1996 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define NR_IRQS			8
+
+#define IRQ_EBSA110_PRINTER	0
+#define IRQ_EBSA110_COM1	1
+#define IRQ_EBSA110_COM2	2
+#define IRQ_EBSA110_ETHERNET	3
+#define IRQ_EBSA110_TIMER0	4
+#define IRQ_EBSA110_TIMER1	5
+#define IRQ_EBSA110_PCMCIA	6
+#define IRQ_EBSA110_IMMEDIATE	7
diff --git a/include/asm-arm/arch-ebsa110/memory.h b/include/asm-arm/arch-ebsa110/memory.h
new file mode 100644
index 00000000000..5a9493e1227
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/memory.h
@@ -0,0 +1,31 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/memory.h
+ *
+ *  Copyright (C) 1996-1999 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Changelog:
+ *   20-Oct-1996 RMK	Created
+ *   31-Dec-1997 RMK	Fixed definitions to reduce warnings
+ *   21-Mar-1999 RMK	Renamed to memory.h
+ *		 RMK	Moved TASK_SIZE and PAGE_OFFSET here
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET	(0x00000000UL)
+
+/*
+ * We keep this 1:1 so that we don't interfere
+ * with the PCMCIA memory regions
+ */
+#define __virt_to_bus(x)	(x)
+#define __bus_to_virt(x)	(x)
+
+#endif
diff --git a/include/asm-arm/arch-ebsa110/param.h b/include/asm-arm/arch-ebsa110/param.h
new file mode 100644
index 00000000000..be19b08d1c7
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/param.h
@@ -0,0 +1,4 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/param.h
+ */
+#define HZ	200
diff --git a/include/asm-arm/arch-ebsa110/system.h b/include/asm-arm/arch-ebsa110/system.h
new file mode 100644
index 00000000000..d7c8fece0bc
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/system.h
@@ -0,0 +1,39 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/system.h
+ *
+ *  Copyright (C) 1996-2000 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+/*
+ * EBSA110 idling methodology:
+ *
+ * We can not execute the "wait for interrupt" instruction since that
+ * will stop our MCLK signal (which provides the clock for the glue
+ * logic, and therefore the timer interrupt).
+ *
+ * Instead, we spin, polling the IRQ_STAT register for the occurrence
+ * of any interrupt with core clock down to the memory clock.
+ */
+static inline void arch_idle(void)
+{
+	const char *irq_stat = (char *)0xff000000;
+
+	/* disable clock switching */
+	asm volatile ("mcr p15, 0, ip, c15, c2, 2" : : : "cc");
+
+	/* wait for an interrupt to occur */
+	while (!*irq_stat);
+
+	/* enable clock switching */
+	asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc");
+}
+
+#define arch_reset(mode)	cpu_reset(0x80000000)
+
+#endif
diff --git a/include/asm-arm/arch-ebsa110/timex.h b/include/asm-arm/arch-ebsa110/timex.h
new file mode 100644
index 00000000000..1e9ef045092
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/timex.h
@@ -0,0 +1,19 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/timex.h
+ *
+ *  Copyright (C) 1997, 1998 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  EBSA110 architecture timex specifications
+ */
+
+/*
+ * On the EBSA, the clock ticks at weird rates.
+ * This is therefore not used to calculate the
+ * divisor.
+ */
+#define CLOCK_TICK_RATE		47894000
+
diff --git a/include/asm-arm/arch-ebsa110/uncompress.h b/include/asm-arm/arch-ebsa110/uncompress.h
new file mode 100644
index 00000000000..eee95581a92
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/uncompress.h
@@ -0,0 +1,44 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/uncompress.h
+ *
+ *  Copyright (C) 1996,1997,1998 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * This does not append a newline
+ */
+static void putstr(const char *s)
+{
+	unsigned long tmp1, tmp2;
+	__asm__ __volatile__(
+	"ldrb	%0, [%2], #1\n"
+"	teq	%0, #0\n"
+"	beq	3f\n"
+"1:	strb	%0, [%3]\n"
+"2:	ldrb	%1, [%3, #0x14]\n"
+"	and	%1, %1, #0x60\n"
+"	teq	%1, #0x60\n"
+"	bne	2b\n"
+"	teq	%0, #'\n'\n"
+"	moveq	%0, #'\r'\n"
+"	beq	1b\n"
+"	ldrb	%0, [%2], #1\n"
+"	teq	%0, #0\n"
+"	bne	1b\n"
+"3:	ldrb	%1, [%3, #0x14]\n"
+"	and	%1, %1, #0x60\n"
+"	teq	%1, #0x60\n"
+"	bne	3b"
+	: "=&r" (tmp1), "=&r" (tmp2)
+	: "r" (s), "r" (0xf0000be0) : "cc");
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-ebsa110/vmalloc.h b/include/asm-arm/arch-ebsa110/vmalloc.h
new file mode 100644
index 00000000000..759659be109
--- /dev/null
+++ b/include/asm-arm/arch-ebsa110/vmalloc.h
@@ -0,0 +1,21 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa110/vmalloc.h
+ *
+ *  Copyright (C) 1998 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts.  That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_OFFSET	  (8*1024*1024)
+#define VMALLOC_START	  (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+#define VMALLOC_END       (PAGE_OFFSET + 0x1f000000)