[MIPS] Malta: Handle byteswapping hardare bug in big endian mode. The SOC-it system controller running in big endian mode might forget byteswapping when DMAing to the last word of physical memory. Fixed by ignoring the last page of memory. Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/mips-boards/generic/memory.c

···
 			memsize = simple_strtol(memsize_str, NULL, 0);
 		}
 	}
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	/*
+	 * SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
+	 * word of physical memory
+	 */
+	memsize -= PAGE_SIZE;
+#endif
+
 	memset(mdesc, 0, sizeof(mdesc));
 
 	mdesc[0].type = yamon_dontuse;