Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 179 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
new file mode 100644
index 000000000000..df3ff26c8cdd
--- /dev/null
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -0,0 +1,179 @@
+/*
+ * arch/arm/mach-ixp2000/ixdp2400.c
+ *
+ * IXDP2400 platform support
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ *  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/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/bitops.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/system.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/arch.h>
+
+/*************************************************************************
+ * IXDP2400 timer tick
+ *************************************************************************/
+static void __init ixdp2400_timer_init(void)
+{
+        int numerator, denominator;
+        int denom_array[] = {2, 4, 8, 16, 1, 2, 4, 8};
+
+        numerator = (*(IXDP2400_CPLD_SYS_CLK_M) & 0xFF) *2;
+        denominator = denom_array[(*(IXDP2400_CPLD_SYS_CLK_N) & 0x7)];
+
+        ixp2000_init_time(((3125000 * numerator) / (denominator)) / 2);
+}
+
+static struct sys_timer ixdp2400_timer = {
+        .init           = ixdp2400_timer_init,
+        .offset         = ixp2000_gettimeoffset,
+};
+
+/*************************************************************************
+ * IXDP2400 PCI
+ *************************************************************************/
+void __init ixdp2400_pci_preinit(void)
+{
+        ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
+        ixp2000_pci_preinit();
+}
+
+int ixdp2400_pci_setup(int nr, struct pci_sys_data *sys)
+{
+        sys->mem_offset = 0xe0000000;
+
+        ixp2000_pci_setup(nr, sys);
+
+        return 1;
+}
+
+static int __init ixdp2400_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        if (ixdp2x00_master_npu()) {
+
+                /*
+                 * Root bus devices.  Slave NPU is only one with interrupt.
+                 * Everything else, we just return -1 b/c nothing else
+                 * on the root bus has interrupts.
+                 */
+                if(!dev->bus->self) {
+                        if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN )
+                                return IRQ_IXDP2400_INGRESS_NPU;
+
+                        return -1;
+                }
+
+                /*
+                 * Bridge behind the PMC slot.
+                 * NOTE: Only INTA from the PMC slot is routed. VERY BAD.
+                 */
+                if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN &&
+                        dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN &&
+                        !dev->bus->parent->self->bus->parent)
+                                  return IRQ_IXDP2400_PMC;
+
+                /*
+                 * Device behind the first bridge
+                 */
+                if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) {
+                        switch(dev->devfn) {
+                                case IXDP2400_MASTER_ENET_DEVFN:        
+                                        return IRQ_IXDP2400_ENET;       
+                        
+                                case IXDP2400_MEDIA_DEVFN:
+                                        return IRQ_IXDP2400_MEDIA_PCI;
+
+                                case IXDP2400_SWITCH_FABRIC_DEVFN:
+                                        return IRQ_IXDP2400_SF_PCI;
+
+                                case IXDP2X00_PMC_DEVFN:
+                                        return IRQ_IXDP2400_PMC;
+                        }
+                }
+
+                return -1;
+        } else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */
+}
+
+
+static void ixdp2400_pci_postinit(void)
+{
+        struct pci_dev *dev;
+
+        if (ixdp2x00_master_npu()) {
+                dev = pci_find_slot(1, IXDP2400_SLAVE_ENET_DEVFN);
+                pci_remove_bus_device(dev);
+        } else {
+                dev = pci_find_slot(1, IXDP2400_MASTER_ENET_DEVFN);
+                pci_remove_bus_device(dev);
+
+                ixdp2x00_slave_pci_postinit();
+        }
+}
+
+static struct hw_pci ixdp2400_pci __initdata = {
+        .nr_controllers = 1,
+        .setup          = ixdp2400_pci_setup,
+        .preinit        = ixdp2400_pci_preinit,
+        .postinit       = ixdp2400_pci_postinit,
+        .scan           = ixp2000_pci_scan_bus,
+        .map_irq        = ixdp2400_pci_map_irq,
+};
+
+int __init ixdp2400_pci_init(void)
+{
+        if (machine_is_ixdp2400())
+                pci_common_init(&ixdp2400_pci);
+
+        return 0;
+}
+
+subsys_initcall(ixdp2400_pci_init);
+
+void ixdp2400_init_irq(void)
+{
+        ixdp2x00_init_irq(IXDP2400_CPLD_INT_STAT, IXDP2400_CPLD_INT_MASK, IXDP2400_NR_IRQS);
+}
+
+MACHINE_START(IXDP2400, "Intel IXDP2400 Development Platform")
+        MAINTAINER("MontaVista Software, Inc.")
+        BOOT_MEM(0x00000000, IXP2000_UART_PHYS_BASE, IXP2000_UART_VIRT_BASE)
+        BOOT_PARAMS(0x00000100)
+        MAPIO(ixdp2x00_map_io)
+        INITIRQ(ixdp2400_init_irq)
+        .timer          = &ixdp2400_timer,
+        INIT_MACHINE(ixdp2x00_init_machine)
+MACHINE_END
+