1 files changed, 119 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/dev-spi.c b/arch/mips/bcm63xx/dev-spi.c
new file mode 100644
index 000000000000..67fa45b3f1cc
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-spi.c
@@ -0,0 +1,119 @@
+/*
+ * 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 = bcm6368_regs_spi;
+}
+#else
+static __init void bcm63xx_spi_regs_init(void) { }
+#endif
+
+static struct resource spi_resources[] = {
+        {
+                .start          = -1, /* filled at runtime */
+                .end            = -1, /* filled at runtime */
+                .flags          = IORESOURCE_MEM,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct bcm63xx_spi_pdata spi_pdata = {
+        .bus_num                = 0,
+        .num_chipselect         = 8,
+};
+
+static struct platform_device bcm63xx_spi_device = {
+        .name           = "bcm63xx-spi",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(spi_resources),
+        .resource       = spi_resources,
+        .dev            = {
+                .platform_data = &spi_pdata,
+        },
+};
+
+int __init bcm63xx_spi_register(void)
+{
+        struct clk *periph_clk;
+
+        if (BCMCPU_IS_6345())
+                return -ENODEV;
+
+        periph_clk = clk_get(NULL, "periph");
+        if (IS_ERR(periph_clk)) {
+                pr_err("unable to get periph clock\n");
+                return -ENODEV;
+        }
+
+        /* Set bus frequency */
+        spi_pdata.speed_hz = clk_get_rate(periph_clk);
+
+        spi_resources[0].start = bcm63xx_regset_address(RSET_SPI);
+        spi_resources[0].end = spi_resources[0].start;
+        spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
+
+        if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
+                spi_resources[0].end += BCM_6338_RSET_SPI_SIZE - 1;
+                spi_pdata.fifo_size = SPI_6338_MSG_DATA_SIZE;
+        }
+
+        if (BCMCPU_IS_6358() || BCMCPU_IS_6368()) {
+                spi_resources[0].end += BCM_6358_RSET_SPI_SIZE - 1;
+                spi_pdata.fifo_size = SPI_6358_MSG_DATA_SIZE;
+        }
+
+        bcm63xx_spi_regs_init();
+
+        return platform_device_register(&bcm63xx_spi_device);
+}