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!

3 files changed, 138 insertions, 0 deletions

diff --git a/arch/mips/dec/boot/Makefile b/arch/mips/dec/boot/Makefile
new file mode 100644
index 000000000000..bcea41698ef5
--- /dev/null
+++ b/arch/mips/dec/boot/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the DECstation family specific parts of the kernel
+#
+
+netboot: all
+        $(LD) -N -G 0 -T ld.ecoff ../../boot/zImage \
+                dec_boot.o ramdisk.img -o nbImage
+
+obj-y    := decstation.o
+
+clean:
+        rm -f nbImage
diff --git a/arch/mips/dec/boot/decstation.c b/arch/mips/dec/boot/decstation.c
new file mode 100644
index 000000000000..56fd4277555e
--- /dev/null
+++ b/arch/mips/dec/boot/decstation.c
@@ -0,0 +1,83 @@
+/*
+ * arch/mips/dec/decstation.c
+ */
+
+#define RELOC
+#define INITRD
+#define DEBUG_BOOT
+
+/*
+ * Magic number indicating REX PROM available on DECSTATION.
+ */
+#define REX_PROM_MAGIC          0x30464354
+
+#define REX_PROM_CLEARCACHE     0x7c/4
+#define REX_PROM_PRINTF         0x30/4
+
+#define VEC_RESET               0xBFC00000              /* Prom base address */
+#define PMAX_PROM_ENTRY(x)      (VEC_RESET+((x)*8))     /* Prom jump table */
+#define PMAX_PROM_PRINTF        PMAX_PROM_ENTRY(17)
+
+#define PARAM   (k_start + 0x2000)
+
+#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
+#define INITRD_START (*(unsigned long *) (PARAM+0x218))
+#define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
+
+extern int _ftext, _end;                /* begin and end of kernel image */
+extern void kernel_entry(int, char **, unsigned long, int *);
+
+void * memcpy(void * dest, const void *src, unsigned int count)
+{
+        unsigned long *tmp = (unsigned long *) dest, *s = (unsigned long *) src;
+
+        count >>= 2;
+        while (count--)
+                *tmp++ = *s++;
+
+        return dest;
+}
+
+void dec_entry(int argc, char **argv,
+               unsigned long magic, int *prom_vec)
+{
+        void (*rex_clear_cache)(void);
+        int (*prom_printf)(char *, ...);
+        unsigned long k_start, len;
+
+        /*
+         * The DS5100 leaves cpu with BEV enabled, clear it.
+         */
+        asm(    "lui\t$8,0x3000\n\t"
+                "mtc0\t$8,$12\n\t"
+                ".section\t.sdata\n\t"
+                ".section\t.sbss\n\t"
+                ".section\t.text"
+                : : : "$8");
+
+#ifdef DEBUG_BOOT
+        if (magic == REX_PROM_MAGIC) {
+        prom_printf = (int (*)(char *, ...)) *(prom_vec + REX_PROM_PRINTF);
+        } else {
+                prom_printf = (int (*)(char *, ...)) PMAX_PROM_PRINTF;
+        }
+        prom_printf("Launching kernel...\n");
+#endif
+
+        k_start = (unsigned long) (&kernel_entry) & 0xffff0000;
+
+#ifdef RELOC
+        /*
+         * Now copy kernel image to its destination.
+         */
+        len = ((unsigned long) (&_end) - k_start);
+        memcpy((void *)k_start, &_ftext, len);
+#endif
+
+        if (magic == REX_PROM_MAGIC) {
+                rex_clear_cache = (void (*)(void)) * (prom_vec + REX_PROM_CLEARCACHE);
+                rex_clear_cache();
+        }
+
+        kernel_entry(argc, argv, magic, prom_vec);
+}
diff --git a/arch/mips/dec/boot/ld.ecoff b/arch/mips/dec/boot/ld.ecoff
new file mode 100644
index 000000000000..aaa633dfb5f7
--- /dev/null
+++ b/arch/mips/dec/boot/ld.ecoff
@@ -0,0 +1,43 @@
+OUTPUT_FORMAT("ecoff-littlemips")
+OUTPUT_ARCH(mips)
+ENTRY(dec_entry)
+SECTIONS
+{
+  . = 0x80200000;
+
+  .text :
+  {
+    _ftext = .;
+    *(.text)
+    *(.fixup)
+  }
+  .rdata :
+  {
+    *(.rodata .rodata.* .rdata)
+  }
+  .data :
+  {
+    . = ALIGN(0x1000);
+    ramdisk.img (.data)
+    *(.data)
+  }
+  .sdata :
+  {
+    *(.sdata)
+  }
+  _gp = .;
+  .sbss :
+  {
+    *(.sbss)
+    *(.scommon)
+  }
+  .bss :
+  {
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  /DISCARD/ : {
+    *(.reginfo .mdebug .note)
+  }
+}