patch-2.4.5 linux/arch/ppc/coffboot/chrpmain.c

• Lines: 287
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.4/linux/arch/ppc/coffboot/chrpmain.c
• Orig date: Sun Sep 17 09:48:06 2000

diff -u --recursive --new-file v2.4.4/linux/arch/ppc/coffboot/chrpmain.c linux/arch/ppc/coffboot/chrpmain.c
@@ -1,286 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include "nonstdio.h"
-#include "zlib.h"
-#include <asm/bootinfo.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-
-extern void *finddevice(const char *);
-extern int getprop(void *, const char *, void *, int);
-void make_bi_recs(unsigned long);
-void gunzip(void *, int, unsigned char *, int *);
-void stop_imac_ethernet(void);
-void stop_imac_usb(void);
-
-#define get_16be(x)	(*(unsigned short *)(x))
-#define get_32be(x)	(*(unsigned *)(x))
-
-#define RAM_END		(16 << 20)
-
-#define PROG_START	0x00010000
-#define PROG_SIZE	0x003f0000
-
-#define SCRATCH_SIZE	(128 << 10)
-
-char *avail_ram;
-char *begin_avail, *end_avail;
-char *avail_high;
-unsigned int heap_use;
-unsigned int heap_max;
-
-extern char _end[];
-extern char image_data[];
-extern int image_len;
-extern char initrd_data[];
-extern int initrd_len;
-
-
-boot(int a1, int a2, void *prom)
-{
-    int ns, oh, i;
-    unsigned sa, len;
-    void *dst;
-    unsigned char *im;
-    unsigned initrd_start, initrd_size;
-    extern char _start;
-    
-    printf("chrpboot starting: loaded at 0x%x\n", &_start);
-    if (initrd_len) {
-	initrd_size = initrd_len;
-	initrd_start = (RAM_END - initrd_size) & ~0xFFF;
-	a1 = initrd_start;
-	a2 = initrd_size;
-	claim(initrd_start, RAM_END - initrd_start, 0);
-	printf("initial ramdisk moving 0x%x <- 0x%x (%x bytes)\n", initrd_start,
-	       initrd_data,initrd_size);
-	memcpy((char *)initrd_start, initrd_data, initrd_size);
-    }
-    im = image_data;
-    len = image_len;
-    /* claim 3MB starting at PROG_START */
-    claim(PROG_START, PROG_SIZE, 0);
-    dst = (void *) PROG_START;
-    if (im[0] == 0x1f && im[1] == 0x8b) {
-	/* claim some memory for scratch space */
-	avail_ram = (char *) claim(0, SCRATCH_SIZE, 0x10);
-	begin_avail = avail_high = avail_ram;
-	end_avail = avail_ram + SCRATCH_SIZE;
-	printf("heap at 0x%x\n", avail_ram);
-	printf("gunzipping (0x%x <- 0x%x:0x%0x)...", dst, im, im+len);
-	gunzip(dst, PROG_SIZE, im, &len);
-	printf("done %u bytes\n", len);
-	printf("%u bytes of heap consumed, max in use %u\n",
-	       avail_high - begin_avail, heap_max);
-    } else {
-	memmove(dst, im, len);
-    }
-
-    flush_cache(dst, len);
-    make_bi_recs((unsigned long) dst + len);
-
-    sa = (unsigned long)PROG_START;
-    printf("start address = 0x%x\n", sa);
-
-    (*(void (*)())sa)(a1, a2, prom);
-
-    printf("returned?\n");
-
-    pause();
-}
-
-void make_bi_recs(unsigned long addr)
-{
-	struct bi_record *rec;
-	rec = (struct bi_record *)_ALIGN((unsigned long)addr+(1<<20)-1,(1<<20));
-	    
-	rec->tag = BI_FIRST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_BOOTLOADER_ID;
-	sprintf( (char *)rec->data, "coffboot");
-	rec->size = sizeof(struct bi_record) + strlen("coffboot") + 1;
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-	    
-	rec->tag = BI_MACHTYPE;
-	rec->data[0] = _MACH_Pmac;
-	rec->data[1] = 1;
-	rec->size = sizeof(struct bi_record) + sizeof(unsigned long);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-	
-#ifdef SYSMAP_OFFSET
-	rec->tag = BI_SYSMAP;
-	rec->data[0] = SYSMAP_OFFSET;
-	rec->data[1] = SYSMAP_SIZE;
-	rec->size = sizeof(struct bi_record) + sizeof(unsigned long);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-#endif /* SYSMAP_OFFSET */
-	
-	rec->tag = BI_LAST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-}
-
-#if 0
-#define eieio()	asm volatile("eieio");
-
-void stop_imac_ethernet(void)
-{
-    void *macio, *enet;
-    unsigned int macio_addr[5], enet_reg[6];
-    int len;
-    volatile unsigned int *dbdma;
-
-    macio = finddevice("/pci/mac-io");
-    enet = finddevice("/pci/mac-io/ethernet");
-    if (macio == NULL || enet == NULL)
-	return;
-    len = getprop(macio, "assigned-addresses", macio_addr, sizeof(macio_addr));
-    if (len != sizeof(macio_addr))
-	return;
-    len = getprop(enet, "reg", enet_reg, sizeof(enet_reg));
-    if (len != sizeof(enet_reg))
-	return;
-    printf("macio base %x, dma at %x & %x\n",
-	   macio_addr[2], enet_reg[2], enet_reg[4]);
-
-    /* hope this is mapped... */
-    dbdma = (volatile unsigned int *) (macio_addr[2] + enet_reg[2]);
-    *dbdma = 0x80;	/* clear the RUN bit */
-    eieio();
-    dbdma = (volatile unsigned int *) (macio_addr[2] + enet_reg[4]);
-    *dbdma = 0x80;	/* clear the RUN bit */
-    eieio();
-}
-
-void stop_imac_usb(void)
-{
-    void *usb;
-    unsigned int usb_addr[5];
-    int len;
-    volatile unsigned int *usb_ctrl;
-
-    usb = finddevice("/pci/usb");
-    if (usb == NULL)
-	return;
-    len = getprop(usb, "assigned-addresses", usb_addr, sizeof(usb_addr));
-    if (len != sizeof(usb_addr))
-	return;
-    printf("usb base %x\n", usb_addr[2]);
-
-    usb_ctrl = (volatile unsigned int *) (usb_addr[2] + 8);
-    *usb_ctrl = 0x01000000;	/* cpu_to_le32(1) */
-    eieio();
-}
-#endif
-
-struct memchunk {
-    unsigned int size;
-    struct memchunk *next;
-};
-
-static struct memchunk *freechunks;
-
-void *zalloc(void *x, unsigned items, unsigned size)
-{
-    void *p;
-    struct memchunk **mpp, *mp;
-
-    size *= items;
-    size = (size + 7) & -8;
-    heap_use += size;
-    if (heap_use > heap_max)
-	heap_max = heap_use;
-    for (mpp = &freechunks; (mp = *mpp) != 0; mpp = &mp->next) {
-	if (mp->size == size) {
-	    *mpp = mp->next;
-	    return mp;
-	}
-    }
-    p = avail_ram;
-    avail_ram += size;
-    if (avail_ram > avail_high)
-	avail_high = avail_ram;
-    if (avail_ram > end_avail) {
-	printf("oops... out of memory\n");
-	pause();
-    }
-    return p;
-}
-
-void zfree(void *x, void *addr, unsigned nb)
-{
-    struct memchunk *mp = addr;
-
-    nb = (nb + 7) & -8;
-    heap_use -= nb;
-    if (avail_ram == addr + nb) {
-	avail_ram = addr;
-	return;
-    }
-    mp->size = nb;
-    mp->next = freechunks;
-    freechunks = mp;
-}
-
-#define HEAD_CRC	2
-#define EXTRA_FIELD	4
-#define ORIG_NAME	8
-#define COMMENT		0x10
-#define RESERVED	0xe0
-
-#define DEFLATED	8
-
-void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
-{
-    z_stream s;
-    int r, i, flags;
-
-    /* skip header */
-    i = 10;
-    flags = src[3];
-    if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
-	printf("bad gzipped data\n");
-	exit();
-    }
-    if ((flags & EXTRA_FIELD) != 0)
-	i = 12 + src[10] + (src[11] << 8);
-    if ((flags & ORIG_NAME) != 0)
-	while (src[i++] != 0)
-	    ;
-    if ((flags & COMMENT) != 0)
-	while (src[i++] != 0)
-	    ;
-    if ((flags & HEAD_CRC) != 0)
-	i += 2;
-    if (i >= *lenp) {
-	printf("gunzip: ran out of data in header\n");
-	exit();
-    }
-
-    s.zalloc = zalloc;
-    s.zfree = zfree;
-    r = inflateInit2(&s, -MAX_WBITS);
-    if (r != Z_OK) {
-	printf("inflateInit2 returned %d\n", r);
-	exit();
-    }
-    s.next_in = src + i;
-    s.avail_in = *lenp - i;
-    s.next_out = dst;
-    s.avail_out = dstlen;
-    r = inflate(&s, Z_FINISH);
-    if (r != Z_OK && r != Z_STREAM_END) {
-	printf("inflate returned %d msg: %s\n", r, s.msg);
-	exit();
-    }
-    *lenp = s.next_out - (unsigned char *) dst;
-    inflateEnd(&s);
-}