18 files changed, 2462 insertions, 0 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 39415b5c4569..fca6000d6e01 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1901,6 +1901,8 @@ config E1000_NAPI
 
           If in doubt, say N.
 
+source "drivers/net/ixp2000/Kconfig"
+
 config MYRI_SBUS
         tristate "MyriCOM Gigabit Ethernet support"
         depends on SBUS
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 505681406314..b74a7cb5bae6 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -206,6 +206,7 @@ obj-$(CONFIG_NET_TULIP) += tulip/
 obj-$(CONFIG_HAMRADIO) += hamradio/
 obj-$(CONFIG_IRDA) += irda/
 obj-$(CONFIG_ETRAX_ETHERNET) += cris/
+obj-$(CONFIG_ENP2611_MSF_NET) += ixp2000/
 
 obj-$(CONFIG_NETCONSOLE) += netconsole.o
 
diff --git a/drivers/net/ixp2000/Kconfig b/drivers/net/ixp2000/Kconfig
new file mode 100644
index 000000000000..2fec2415651f
--- /dev/null
+++ b/drivers/net/ixp2000/Kconfig
@@ -0,0 +1,6 @@
+config ENP2611_MSF_NET
+        tristate "Radisys ENP2611 MSF network interface support"
+        depends on ARCH_ENP2611
+        help
+          This is a driver for the MSF network interface unit in
+          the IXP2400 on the Radisys ENP2611 platform.
diff --git a/drivers/net/ixp2000/Makefile b/drivers/net/ixp2000/Makefile
new file mode 100644
index 000000000000..fd38351ceaa7
--- /dev/null
+++ b/drivers/net/ixp2000/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_ENP2611_MSF_NET) += enp2611_mod.o
+
+enp2611_mod-objs := caleb.o enp2611.o ixp2400-msf.o ixpdev.o pm3386.o
diff --git a/drivers/net/ixp2000/caleb.c b/drivers/net/ixp2000/caleb.c
new file mode 100644
index 000000000000..d70530adb1e2
--- /dev/null
+++ b/drivers/net/ixp2000/caleb.c
@@ -0,0 +1,136 @@
+/*
+ * Helper functions for the SPI-3 bridge FPGA on the Radisys ENP2611
+ * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Dedicated to Marija Kulikova.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+#define CALEB_IDLO              0x00
+#define CALEB_IDHI              0x01
+#define CALEB_RID               0x02
+#define CALEB_RESET             0x03
+#define CALEB_INTREN0           0x04
+#define CALEB_INTREN1           0x05
+#define CALEB_INTRSTAT0         0x06
+#define CALEB_INTRSTAT1         0x07
+#define CALEB_PORTEN            0x08
+#define CALEB_BURST             0x09
+#define CALEB_PORTPAUS          0x0A
+#define CALEB_PORTPAUSD         0x0B
+#define CALEB_PHY0RX            0x10
+#define CALEB_PHY1RX            0x11
+#define CALEB_PHY0TX            0x12
+#define CALEB_PHY1TX            0x13
+#define CALEB_IXPRX_HI_CNTR     0x15
+#define CALEB_PHY0RX_HI_CNTR    0x16
+#define CALEB_PHY1RX_HI_CNTR    0x17
+#define CALEB_IXPRX_CNTR        0x18
+#define CALEB_PHY0RX_CNTR       0x19
+#define CALEB_PHY1RX_CNTR       0x1A
+#define CALEB_IXPTX_CNTR        0x1B
+#define CALEB_PHY0TX_CNTR       0x1C
+#define CALEB_PHY1TX_CNTR       0x1D
+#define CALEB_DEBUG0            0x1E
+#define CALEB_DEBUG1            0x1F
+
+
+static u8 caleb_reg_read(int reg)
+{
+        u8 value;
+
+        value = *((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg));
+
+//      printk(KERN_INFO "caleb_reg_read(%d) = %.2x\n", reg, value);
+
+        return value;
+}
+
+static void caleb_reg_write(int reg, u8 value)
+{
+        u8 dummy;
+
+//      printk(KERN_INFO "caleb_reg_write(%d, %.2x)\n", reg, value);
+
+        *((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg)) = value;
+
+        dummy = *((volatile u8 *)ENP2611_CALEB_VIRT_BASE);
+        __asm__ __volatile__("mov %0, %0" : "+r" (dummy));
+}
+
+
+void caleb_reset(void)
+{
+        /*
+         * Perform a chip reset.
+         */
+        caleb_reg_write(CALEB_RESET, 0x02);
+        udelay(1);
+
+        /*
+         * Enable all interrupt sources.  This is needed to get
+         * meaningful results out of the status bits (register 6
+         * and 7.)
+         */
+        caleb_reg_write(CALEB_INTREN0, 0xff);
+        caleb_reg_write(CALEB_INTREN1, 0x07);
+
+        /*
+         * Set RX and TX FIFO thresholds to 1.5kb.
+         */
+        caleb_reg_write(CALEB_PHY0RX, 0x11);
+        caleb_reg_write(CALEB_PHY1RX, 0x11);
+        caleb_reg_write(CALEB_PHY0TX, 0x11);
+        caleb_reg_write(CALEB_PHY1TX, 0x11);
+
+        /*
+         * Program SPI-3 burst size.
+         */
+        caleb_reg_write(CALEB_BURST, 0);        // 64-byte RBUF mpackets
+//      caleb_reg_write(CALEB_BURST, 1);        // 128-byte RBUF mpackets
+//      caleb_reg_write(CALEB_BURST, 2);        // 256-byte RBUF mpackets
+}
+
+void caleb_enable_rx(int port)
+{
+        u8 temp;
+
+        temp = caleb_reg_read(CALEB_PORTEN);
+        temp |= 1 << port;
+        caleb_reg_write(CALEB_PORTEN, temp);
+}
+
+void caleb_disable_rx(int port)
+{
+        u8 temp;
+
+        temp = caleb_reg_read(CALEB_PORTEN);
+        temp &= ~(1 << port);
+        caleb_reg_write(CALEB_PORTEN, temp);
+}
+
+void caleb_enable_tx(int port)
+{
+        u8 temp;
+
+        temp = caleb_reg_read(CALEB_PORTEN);
+        temp |= 1 << (port + 4);
+        caleb_reg_write(CALEB_PORTEN, temp);
+}
+
+void caleb_disable_tx(int port)
+{
+        u8 temp;
+
+        temp = caleb_reg_read(CALEB_PORTEN);
+        temp &= ~(1 << (port + 4));
+        caleb_reg_write(CALEB_PORTEN, temp);
+}
diff --git a/drivers/net/ixp2000/caleb.h b/drivers/net/ixp2000/caleb.h
new file mode 100644
index 000000000000..e93a1ef5b8a3
--- /dev/null
+++ b/drivers/net/ixp2000/caleb.h
@@ -0,0 +1,22 @@
+/*
+ * Helper functions for the SPI-3 bridge FPGA on the Radisys ENP2611