MIPS: BCM63xx: Add integrated ethernet mac support.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 159 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
new file mode 100644
index 000000000000..9f544badd0b4
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -0,0 +1,159 @@
+/*
+ * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_dev_enet.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+
+static struct resource shared_res[] = {
+        {
+                .start          = -1, /* filled at runtime */
+                .end            = -1, /* filled at runtime */
+                .flags          = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device bcm63xx_enet_shared_device = {
+        .name           = "bcm63xx_enet_shared",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(shared_res),
+        .resource       = shared_res,
+};
+
+static int shared_device_registered;
+
+static struct resource enet0_res[] = {
+        {
+                .start          = -1, /* filled at runtime */
+                .end            = -1, /* filled at runtime */
+                .flags          = IORESOURCE_MEM,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct bcm63xx_enet_platform_data enet0_pd;
+
+static struct platform_device bcm63xx_enet0_device = {
+        .name           = "bcm63xx_enet",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(enet0_res),
+        .resource       = enet0_res,
+        .dev            = {
+                .platform_data = &enet0_pd,
+        },
+};
+
+static struct resource enet1_res[] = {
+        {
+                .start          = -1, /* filled at runtime */
+                .end            = -1, /* filled at runtime */
+                .flags          = IORESOURCE_MEM,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct bcm63xx_enet_platform_data enet1_pd;
+
+static struct platform_device bcm63xx_enet1_device = {
+        .name           = "bcm63xx_enet",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(enet1_res),
+        .resource       = enet1_res,
+        .dev            = {
+                .platform_data = &enet1_pd,
+        },
+};
+
+int __init bcm63xx_enet_register(int unit,
+                                 const struct bcm63xx_enet_platform_data *pd)
+{
+        struct platform_device *pdev;
+        struct bcm63xx_enet_platform_data *dpd;
+        int ret;
+
+        if (unit > 1)
+                return -ENODEV;
+
+        if (!shared_device_registered) {
+                shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
+                shared_res[0].end = shared_res[0].start;
+                if (BCMCPU_IS_6338())
+                        shared_res[0].end += (RSET_ENETDMA_SIZE / 2)  - 1;
+                else
+                        shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+
+                ret = platform_device_register(&bcm63xx_enet_shared_device);
+                if (ret)
+                        return ret;
+                shared_device_registered = 1;
+        }
+
+        if (unit == 0) {
+                enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
+                enet0_res[0].end = enet0_res[0].start;
+                enet0_res[0].end += RSET_ENET_SIZE - 1;
+                enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
+                enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
+                enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
+                pdev = &bcm63xx_enet0_device;
+        } else {
+                enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
+                enet1_res[0].end = enet1_res[0].start;
+                enet1_res[0].end += RSET_ENET_SIZE - 1;
+                enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
+                enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
+                enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
+                pdev = &bcm63xx_enet1_device;
+        }
+
+        /* copy given platform data */
+        dpd = pdev->dev.platform_data;
+        memcpy(dpd, pd, sizeof(*pd));
+
+        /* adjust them in case internal phy is used */
+        if (dpd->use_internal_phy) {
+
+                /* internal phy only exists for enet0 */
+                if (unit == 1)
+                        return -ENODEV;
+
+                dpd->phy_id = 1;
+                dpd->has_phy_interrupt = 1;
+                dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
+        }
+
+        ret = platform_device_register(pdev);
+        if (ret)
+                return ret;
+        return 0;
+}