Linux-2.6.12-rc2v2.6.12-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 000000000000..dcd03a40c502
--- /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 000000000000..d491776ac1cc
--- /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 000000000000..b12ca04f998c
--- /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 000000000000..4e41c2358f4e
--- /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 000000000000..68e04c0bb3f7
--- /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 000000000000..ded9bd9d7b8b
--- /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 000000000000..5a9493e12275
--- /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 000000000000..be19b08d1c75
--- /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 000000000000..d7c8fece0bc5
--- /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 000000000000..1e9ef045092b
--- /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 000000000000..eee95581a923
--- /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 000000000000..759659be109f
--- /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)