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-rw-r--r--arch/mips/cavium-octeon/Makefile2
-rw-r--r--arch/mips/cavium-octeon/cpu.c52
-rw-r--r--arch/mips/cavium-octeon/octeon-platform.c88
3 files changed, 141 insertions, 1 deletions
diff --git a/arch/mips/cavium-octeon/Makefile b/arch/mips/cavium-octeon/Makefile
index 13943628052..3e9876317e6 100644
--- a/arch/mips/cavium-octeon/Makefile
+++ b/arch/mips/cavium-octeon/Makefile
@@ -9,7 +9,7 @@
# Copyright (C) 2005-2009 Cavium Networks
#
-obj-y := setup.o serial.o octeon-platform.o octeon-irq.o csrc-octeon.o
+obj-y := cpu.o setup.o serial.o octeon-platform.o octeon-irq.o csrc-octeon.o
obj-y += dma-octeon.o flash_setup.o
obj-y += octeon-memcpy.o
diff --git a/arch/mips/cavium-octeon/cpu.c b/arch/mips/cavium-octeon/cpu.c
new file mode 100644
index 00000000000..b6df5387e85
--- /dev/null
+++ b/arch/mips/cavium-octeon/cpu.c
@@ -0,0 +1,52 @@
+/*
+ * 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 Wind River Systems,
+ * written by Ralf Baechle <ralf@linux-mips.org>
+ */
+#include <linux/init.h>
+#include <linux/irqflags.h>
+#include <linux/notifier.h>
+#include <linux/prefetch.h>
+#include <linux/sched.h>
+
+#include <asm/cop2.h>
+#include <asm/current.h>
+#include <asm/mipsregs.h>
+#include <asm/page.h>
+#include <asm/octeon/octeon.h>
+
+static int cnmips_cu2_call(struct notifier_block *nfb, unsigned long action,
+ void *data)
+{
+ unsigned long flags;
+ unsigned int status;
+
+ switch (action) {
+ case CU2_EXCEPTION:
+ prefetch(&current->thread.cp2);
+ local_irq_save(flags);
+ KSTK_STATUS(current) |= ST0_CU2;
+ status = read_c0_status();
+ write_c0_status(status | ST0_CU2);
+ octeon_cop2_restore(&(current->thread.cp2));
+ write_c0_status(status & ~ST0_CU2);
+ local_irq_restore(flags);
+
+ return NOTIFY_BAD; /* Don't call default notifier */
+ }
+
+ return NOTIFY_OK; /* Let default notifier send signals */
+}
+
+static struct notifier_block cnmips_cu2_notifier = {
+ .notifier_call = cnmips_cu2_call,
+};
+
+static int cnmips_cu2_setup(void)
+{
+ return register_cu2_notifier(&cnmips_cu2_notifier);
+}
+early_initcall(cnmips_cu2_setup);
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index be711dd2d91..cfdb4c2ac5c 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -159,6 +159,94 @@ out:
}
device_initcall(octeon_rng_device_init);
+/* Octeon SMI/MDIO interface. */
+static int __init octeon_mdiobus_device_init(void)
+{
+ struct platform_device *pd;
+ int ret = 0;
+
+ if (octeon_is_simulation())
+ return 0; /* No mdio in the simulator. */
+
+ /* The bus number is the platform_device id. */
+ pd = platform_device_alloc("mdio-octeon", 0);
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = platform_device_add(pd);
+ if (ret)
+ goto fail;
+
+ return ret;
+fail:
+ platform_device_put(pd);
+
+out:
+ return ret;
+
+}
+device_initcall(octeon_mdiobus_device_init);
+
+/* Octeon mgmt port Ethernet interface. */
+static int __init octeon_mgmt_device_init(void)
+{
+ struct platform_device *pd;
+ int ret = 0;
+ int port, num_ports;
+
+ struct resource mgmt_port_resource = {
+ .flags = IORESOURCE_IRQ,
+ .start = -1,
+ .end = -1
+ };
+
+ if (!OCTEON_IS_MODEL(OCTEON_CN56XX) && !OCTEON_IS_MODEL(OCTEON_CN52XX))
+ return 0;
+
+ if (OCTEON_IS_MODEL(OCTEON_CN56XX))
+ num_ports = 1;
+ else
+ num_ports = 2;
+
+ for (port = 0; port < num_ports; port++) {
+ pd = platform_device_alloc("octeon_mgmt", port);
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ switch (port) {
+ case 0:
+ mgmt_port_resource.start = OCTEON_IRQ_MII0;
+ break;
+ case 1:
+ mgmt_port_resource.start = OCTEON_IRQ_MII1;
+ break;
+ default:
+ BUG();
+ }
+ mgmt_port_resource.end = mgmt_port_resource.start;
+
+ ret = platform_device_add_resources(pd, &mgmt_port_resource, 1);
+
+ if (ret)
+ goto fail;
+
+ ret = platform_device_add(pd);
+ if (ret)
+ goto fail;
+ }
+ return ret;
+fail:
+ platform_device_put(pd);
+
+out:
+ return ret;
+
+}
+device_initcall(octeon_mgmt_device_init);
+
MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Platform driver for Octeon SOC");