patch-2.4.10 linux/arch/ppc/boot/pmac/chrpmain.c
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- Lines: 304
- Date:
Tue Aug 28 06:58:33 2001
- Orig file:
v2.4.9/linux/arch/ppc/boot/pmac/chrpmain.c
- Orig date:
Tue Jul 3 17:08:18 2001
diff -u --recursive --new-file v2.4.9/linux/arch/ppc/boot/pmac/chrpmain.c linux/arch/ppc/boot/pmac/chrpmain.c
@@ -1,5 +1,5 @@
/*
- * BK Id: SCCS/s.chrpmain.c 1.12 06/12/01 16:42:26 paulus
+ * BK Id: SCCS/s.chrpmain.c 1.16 07/27/01 20:24:18 trini
*/
/*
* Copyright (C) Paul Mackerras 1997.
@@ -11,21 +11,26 @@
*/
#include "nonstdio.h"
#include "zlib.h"
-#include <asm/bootinfo.h>
#include <asm/processor.h>
-#include <asm/page.h>
-extern void *finddevice(const char *);
+extern char _end[];
+extern char image_data[], initrd_data[];
+extern int image_len, initrd_len;
extern int getprop(void *, const char *, void *, int);
+extern unsigned int heap_max;
extern void *claim(unsigned int, unsigned int, unsigned int);
+extern void *finddevice(const char *);
+extern void flush_cache(void *start, unsigned int len);
+extern void gunzip(void *, int, unsigned char *, int *);
+extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
+ unsigned int progend);
+extern void pause(void);
extern void release(void *ptr, unsigned int len);
-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))
+char *avail_ram;
+char *begin_avail, *end_avail;
+char *avail_high;
+
#define RAM_END (16 << 20)
@@ -34,36 +39,22 @@
#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)
+void 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);
+ printf("chrpboot starting: loaded at 0x%p\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,
+ printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n", initrd_start,
initrd_data,initrd_size);
memcpy((char *)initrd_start, initrd_data, initrd_size);
}
@@ -77,8 +68,8 @@
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);
+ printf("heap at 0x%p\n", avail_ram);
+ printf("gunzipping (0x%p <- 0x%p:0x%p)...", 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",
@@ -89,7 +80,8 @@
}
flush_cache(dst, len);
- make_bi_recs((unsigned long) dst + len);
+ make_bi_recs(((unsigned long) dst + len), "chrpboot", _MACH_Pmac,
+ (PROG_START + PROG_SIZE));
sa = (unsigned long)PROG_START;
printf("start address = 0x%x\n", sa);
@@ -99,199 +91,4 @@
printf("returned?\n");
pause();
-}
-
-void make_bi_recs(unsigned long addr)
-{
- struct bi_record *rec;
-
- /* leave a 1MB gap then align to the next 1MB boundary */
- addr = _ALIGN(addr+ (1<<20) - 1, (1<<20));
- if (addr >= PROG_START + PROG_SIZE)
- claim(addr, 0x1000, 0);
-
- rec = (struct bi_record *)addr;
- 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) + 2 * 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) + 2 * 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);
}
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