This patch adds the necessary stub to register the SPI platform driver.
Since the registers are shuffled between the 4 BCM63xx CPUs supported by
this SPI driver we also need to generate the internal register layout and
export this layout for the driver to use it properly.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
 arch/mips/bcm63xx/dev-spi.c                        |  117 ++++++++++++++++++++
 .../include/asm/mach-bcm63xx/bcm63xx_dev_spi.h     |   89 +++++++++++++++
 2 files changed, 206 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/bcm63xx/dev-spi.c
 create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h

diff --git a/arch/mips/bcm63xx/dev-spi.c b/arch/mips/bcm63xx/dev-spi.c
new file mode 100644
index 0000000..b0faa85
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-spi.c

@@ -0,0 +1,117 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009-2011 Florian Fainelli <florian@openwrt.org>
+ * Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_spi.h>
+#include <bcm63xx_regs.h>
+
+#ifdef BCMCPU_RUNTIME_DETECT
+/*
+ * register offsets
+ */
+static const unsigned long bcm6338_regs_spi[] = {
+       __GEN_SPI_REGS_TABLE(6338)
+};
+
+static const unsigned long bcm6348_regs_spi[] = {
+       __GEN_SPI_REGS_TABLE(6348)
+};
+
+static const unsigned long bcm6358_regs_spi[] = {
+       __GEN_SPI_REGS_TABLE(6358)
+};
+
+static const unsigned long bcm6368_regs_spi[] = {
+       __GEN_SPI_REGS_TABLE(6368)
+};
+
+const unsigned long *bcm63xx_regs_spi;
+EXPORT_SYMBOL(bcm63xx_regs_spi);
+
+static __init void bcm63xx_spi_regs_init(void)
+{
+       if (BCMCPU_IS_6338())
+               bcm63xx_regs_spi = bcm6338_regs_spi;
+       if (BCMCPU_IS_6348())
+               bcm63xx_regs_spi = bcm6348_regs_spi;
+       if (BCMCPU_IS_6358())
+               bcm63xx_regs_spi = bcm6358_regs_spi;
+       if (BCMCPU_IS_6368())
+               bcm63xx_regs_spi = bcm6358_regs_spi;