2006/05/02 - stepan: move nrv2b to an extra file.
*/
-#if CONFIG_COMPRESS
-#include "lib/nrv2b.c"
-#endif
-
static inline void print_debug_cp_run(const char *strval, uint32_t val)
{
#if CONFIG_USE_INIT
#endif
}
+#if CONFIG_COMPRESS
+#define ENDIAN 0
+#define BITSIZE 32
+#include "lib/nrv2b.c"
+#endif
+
+
static void copy_and_run(void)
{
uint8_t *src, *dst;
- unsigned long ilen = 0, olen = 0, last_m_off = 1;
- uint32_t bb = 0;
- unsigned bc = 0;
+ unsigned long ilen, olen;
print_debug("Copying LinuxBIOS to ram.\r\n");
#else
__asm__ volatile (
- "leal _liseg, %0\n\t"
- "leal _iseg, %1\n\t"
+ "leal _liseg, %0\n\t"
+ "leal _iseg, %1\n\t"
: "=a" (src) , "=b" (dst)
);
print_debug_cp_run("src=",(uint32_t)src);
print_debug_cp_run("dst=",(uint32_t)dst);
- unrv2b(src, dst);
+ olen = unrv2b(src, dst, &ilen);
+ print_debug_cp_run("linxbios_ram.nrv2b length = ", ilen);
+
#endif
- print_debug_cp_run("linxbios_ram.bin length = ", olen);
+ print_debug_cp_run("linxbios_ram.bin length = ", olen);
print_debug("Jumping to LinuxBIOS.\r\n");
-#include <stdlib.h>
-#include <stddef.h>
-
// This GETBIT is supposed to work on little endian
// 32bit systems. The algorithm will definitely need
// some fixing on other systems, but it might not be
// a problem since the nrv2b binary behaves the same..
-#define GETBIT(bb, src, ilen) \
+#ifndef ENDIAN
+#define ENDIAN 0
+#endif
+#ifndef BITSIZE
+#define BITSIZE 32
+#endif
+
+#define GETBIT_8(bb, src, ilen) \
+ (((bb = bb & 0x7f ? bb*2 : ((unsigned)src[ilen++]*2+1)) >> 8) & 1)
+
+#define GETBIT_LE16(bb, src, ilen) \
+ (bb*=2,bb&0xffff ? (bb>>16)&1 : (ilen+=2,((bb=(src[ilen-2]+src[ilen-1]*256u)*2+1)>>16)&1))
+#define GETBIT_LE32(bb, src, ilen) \
(bc > 0 ? ((bb>>--bc)&1) : (bc=31,\
bb=*(const uint32_t *)((src)+ilen),ilen+=4,(bb>>31)&1))
-static void unrv2b(uint8_t * src, uint8_t * dst)
+#if ENDIAN == 0 && BITSIZE == 8
+#define GETBIT(bb, src, ilen) GETBIT_8(bb, src, ilen)
+#endif
+#if ENDIAN == 0 && BITSIZE == 16
+#define GETBIT(bb, src, ilen) GETBIT_LE16(bb, src, ilen)
+#endif
+#if ENDIAN == 0 && BITSIZE == 32
+#define GETBIT(bb, src, ilen) GETBIT_LE32(bb, src, ilen)
+#endif
+
+static unsigned long unrv2b(uint8_t * src, uint8_t * dst, unsigned long *ilen_p)
{
unsigned long ilen = 0, olen = 0, last_m_off = 1;
uint32_t bb = 0;
// skip length
src += 4;
+ /* FIXME: check olen with len on first 4 bytes */
for (;;) {
unsigned int m_off, m_len;
while (GETBIT(bb, src, ilen)) {
} while (--m_len > 0);
}
+ *ilen_p = ilen;
+
+ return olen;
+
}
-uses CONFIG_COMPRESSED_ROM_STREAM
uses CONFIG_ROM_STREAM
uses CONFIG_IDE_STREAM
uses CONFIG_FS_STREAM
object rom_stream.o
end
-if CONFIG_COMPRESSED_ROM_STREAM
- object zrom_stream.o
-end
-
if CONFIG_IDE_STREAM
default CONFIG_IDE=1
object ide_stream.o
#include <stream/read_bytes.h>
#include <string.h>
+#if CONFIG_COMPRESSED_ROM_STREAM
+// include generic nrv2b
+#include "../lib/nrv2b.c"
+extern unsigned char _heap, _eheap;
+#endif
#ifndef CONFIG_ROM_STREAM_START
#define CONFIG_ROM_STREAM_START 0xffff0000UL
#endif
-/* well, this is a mess, and it will get fixed, but not right away.
- * until we stop using 'ld' for building the rom image, that is.
- * problem is, that on the sc520, ROM_STREAM_START has to be at 0x2000000.
- * but if you set CONFIG_ROM_STREAM_START to that, then ld will try to
- * build a giant image: 0x0-0x2000000, i.e. almost 4 GB.
- * so make this non-static, non-const for now.
+/* well, this is a mess, and it will get fixed, but not right away.
+ * until we stop using 'ld' for building the rom image, that is.
+ * problem is, that on the sc520, ROM_STREAM_START has to be at 0x2000000.
+ * but if you set CONFIG_ROM_STREAM_START to that, then ld will try to
+ * build a giant image: 0x0-0x2000000, i.e. almost 4 GB.
+ * so make this non-static, non-const for now.
*/
/*XXXXXXXXXXXXXX */
/*static const */unsigned char *rom_start = (unsigned char *)CONFIG_ROM_STREAM_START;
/*static const */unsigned char *rom_end = (unsigned char *)(CONFIG_ROM_STREAM_START + PAYLOAD_SIZE - 1);
/*XXXXXXXXXXXXXX */
+
+unsigned char *rom_start = (void *)CONFIG_ROM_STREAM_START;
+unsigned char *rom_end = (void *)(CONFIG_ROM_STREAM_START + PAYLOAD_SIZE - 1);
static const unsigned char *rom;
int stream_init(void)
{
- rom = rom_start;
+#if CONFIG_COMPRESSED_ROM_STREAM
+ unsigned long dest;
+ unsigned long ilen;
+ unsigned long olen;
+#endif
- printk_debug("%6d:%s() - rom_stream: 0x%08lx - 0x%08lx\n",
- __LINE__, __FUNCTION__,
+ printk_debug("rom_stream: 0x%08lx - 0x%08lx\n",
(unsigned long)rom_start,
(unsigned long)rom_end);
+
+#if CONFIG_COMPRESSED_ROM_STREAM
+
+ dest = &_eheap; /* need a good address on RAM */
+
+#if _RAMBASE<0x00100000
+ olen = *(unsigned int *)dest;
+#if (CONFIG_CONSOLE_VGA==1) || (CONFIG_PCI_ROM_RUN == 1)
+ if((dest < 0xa0000) && ((dest+olen)>0xa0000)) {
+ dest = (CONFIG_LB_MEM_TOPK<<10);
+ }
+#endif
+ if((dest < 0xf0000) && ((dest+olen)>0xf0000)) { //linuxbios tables etc
+ dest = (CONFIG_LB_MEM_TOPK<<10);
+ }
+#endif
+
+ printk_debug("Uncompressing to RAM 0x%08lx ", dest);
+ olen = unrv2b((uint8_t *) rom_start, (uint8_t *)dest, &ilen );
+ printk_debug(" ilen = 0x%08lx olen = 0x%08lx done.\n", ilen, olen);
+ rom_end = dest + olen - 1;
+ rom = dest;
+#else
+ rom = rom_start;
+#endif
+
return 0;
}
+++ /dev/null
-#include <console/console.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <stream/read_bytes.h>
-#include <string.h>
-
-// include generic nrv2b
-#include "../lib/nrv2b.c"
-
-#ifndef CONFIG_ROM_STREAM_START
-#define CONFIG_ROM_STREAM_START 0xffff0000UL
-#endif
-
-unsigned char *rom_start = (unsigned char *)CONFIG_ROM_STREAM_START;
-unsigned char *rom_end = (unsigned char *)(CONFIG_ROM_STREAM_START + PAYLOAD_SIZE - 1);;
-
-extern unsigned char _heap, _eheap;
-
-static const unsigned char *rom;
-
-int stream_init(void)
-{
- unsigned long compressed_rom_start=rom_start;
- unsigned long compressed_rom_end=rom_end;
- unsigned int len;
-
- len=*(unsigned int *)compressed_rom_start; // LE only for now
-
- printk_debug (" compressed rom stream: 0x%08lx - 0x%08lx\n",
- compressed_rom_start, compressed_rom_end);
-
- rom_start = &_eheap;
- rom_end = rom_start + len; // LE only for now
-#if 0
- {
- int i;
- for (i=0; i<512; i++) {
- if( i%16==0) printk_spew("\n%04x :", i);
- printk_spew(" %02x", *(unsigned char *)(compressed_rom_start+i));
- }
- }
-#endif
- printk_debug(" rom stream: 0x%08lx - 0x%08lx\n", (unsigned long)
- rom_start, (unsigned long) rom_end);
-
- printk_debug("Uncompressing...");
- unrv2b((uint8_t *) compressed_rom_start, (uint8_t *)rom_start);
- printk_debug(" done.\n");
-
- rom = rom_start;
-
- return 0;
-}
-
-void stream_fini(void)
-{
- return;
-}
-
-byte_offset_t stream_skip(byte_offset_t count)
-{
- byte_offset_t bytes;
- bytes = count;
- if ((rom + bytes) > rom_end) {
- printk_warning(" overflowed source buffer\n");
- bytes = 0;
- if (rom <= rom_end) {
- bytes = (rom_end - rom) + 1;
- }
- }
- rom += bytes;
- return bytes;
-}
-
-byte_offset_t stream_read(void *vdest, byte_offset_t count)
-{
- unsigned char *dest = vdest;
- const unsigned char *src = rom;
- byte_offset_t bytes;
-
- bytes = stream_skip(count);
- memcpy(dest, src, bytes);
- return bytes;
-}
projects / coreboot.git / commitdiff