Revert "Avoid initrd and logbuffer area overlaps"

This reverts commit 1b5605ca57fbb364f4d78eeee28b974ed875e888
which breaks building on all PPC boards that don't use a log buffer.

common/cmd_log.c

@@ -66,12 +66,6 @@ static logbuff_t *log;
 #endif
 static char *lbuf;
 
-unsigned long __logbuffer_base(void)
-{
-	return CFG_SDRAM_BASE + gd->bd->bi_memsize - LOGBUFF_LEN;
-}
-unsigned long logbuffer_base (void) __attribute__((weak, alias("__logbuffer_base")));
-
 void logbuff_init_ptrs (void)
 {
 	unsigned long tag, post_word;
@@ -81,7 +75,7 @@ void logbuff_init_ptrs (void)
 	log = (logbuff_t *)CONFIG_ALT_LH_ADDR;
 	lbuf = (char *)CONFIG_ALT_LB_ADDR;
 #else
-	log = (logbuff_t *)(logbuffer_base ()) - 1;
+	log = (logbuff_t *)(gd->bd->bi_memsize-LOGBUFF_LEN) - 1;
 	lbuf = (char *)log->buf;
 #endif
 

common/image.c

@@ -35,10 +35,6 @@
 #include <dataflash.h>
 #endif
 
-#ifdef CONFIG_LOGBUFFER
-#include <logbuff.h>
-#endif
-
 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
 #include <rtc.h>
 #endif
@@ -1017,9 +1013,6 @@ int boot_ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
 		initrd_high = ~0;
 	}
 
-	/* Prevent initrd from overwriting logbuffer */
-	lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
-
 	debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
 			initrd_high, initrd_copy_to_ram);
 

include/logbuff.h

@@ -60,7 +60,6 @@ int drv_logbuff_init (void);
 void logbuff_init_ptrs (void);
 void logbuff_log(char *msg);
 void logbuff_reset (void);
-unsigned long logbuffer_base (void);
 
 #endif /* CONFIG_LOGBUFFER */
 

lib_ppc/board.c

@@ -398,11 +398,6 @@ ulong get_effective_memsize(void)
  ************************************************************************
  */
 
-unsigned long logbuffer_base(void)
-{
-	return CFG_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
-}
-
 void board_init_f (ulong bootflag)
 {
 	bd_t *bd;