MIPS: BCM63xx: Define SPI register sizes.

There are two distinct sizes for the SPI register depending on the SoC
generation (6338 & 6348 vs 6358 & 6368).
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: grant.likely@secretlab.ca
Cc: spi-devel-general@lists.sourceforge.net
Patchwork: https://patchwork.linux-mips.org/patch/3314/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h

@@ -135,6 +135,10 @@ enum bcm63xx_regs_set {
 #define RSET_DSL_LMEM_SIZE		(64 * 1024 * 4)
 #define RSET_DSL_SIZE			4096
 #define RSET_WDT_SIZE			12
+#define BCM_6338_RSET_SPI_SIZE		64
+#define BCM_6348_RSET_SPI_SIZE		64
+#define BCM_6358_RSET_SPI_SIZE		1804
+#define BCM_6368_RSET_SPI_SIZE		1804
 #define RSET_ENET_SIZE			2048
 #define RSET_ENETDMA_SIZE		2048
 #define RSET_ENETSW_SIZE		65536