Due buggy nature of this bus, the kernel init section must not use addresses at 0x80200000...0x80220000. Thanks Wive-NG developers for ingo about this bug.

This patch must be added into target/linux/ramips/patches-2.6.37 directory
+++ a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -92,6 +92,12 @@ SECTIONS
 	}
 	_edata =  .;			/* End of data section */
 
+#ifdef CONFIG_SPI_RAMIPS
+	/* This hack need for SPI devices work only */
+	/* init need start > 0x80220000 */
+	. = 0xffffffff80220000;
+#endif
+
 	/* will be freed after init */
 	. = ALIGN(PAGE_SIZE);		/* Init code and data */
 	__init_begin = .;
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