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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-ixp2000/ixdp2800.c
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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!
Diffstat (limited to 'arch/arm/mach-ixp2000/ixdp2800.c')
-rw-r--r--arch/arm/mach-ixp2000/ixdp2800.c180
1 files changed, 180 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
new file mode 100644
index 00000000000..c4683aaff84
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+++ b/arch/arm/mach-ixp2000/ixdp2800.c
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+/*
+ * arch/arm/mach-ixp2000/ixdp2800.c
+ *
+ * IXDP2800 platform support
+ *
+ * Original Author: Jeffrey Daly <jeffrey.daly@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>
+
+
+void ixdp2400_init_irq(void)
+{
+ ixdp2x00_init_irq(IXDP2800_CPLD_INT_STAT, IXDP2800_CPLD_INT_MASK, IXDP2400_NR_IRQS);
+}
+
+/*************************************************************************
+ * IXDP2800 timer tick
+ *************************************************************************/
+
+static void __init ixdp2800_timer_init(void)
+{
+ ixp2000_init_time(50000000);
+}
+
+static struct sys_timer ixdp2800_timer = {
+ .init = ixdp2800_timer_init,
+ .offset = ixp2000_gettimeoffset,
+};
+
+/*************************************************************************
+ * IXDP2800 PCI
+ *************************************************************************/
+void __init ixdp2800_pci_preinit(void)
+{
+ printk("ixdp2x00_pci_preinit called\n");
+
+ *IXP2000_PCI_ADDR_EXT = 0x0000e000;
+
+ *IXP2000_PCI_DRAM_BASE_ADDR_MASK = (0x40000000 - 1) & ~0xfffff;
+ *IXP2000_PCI_SRAM_BASE_ADDR_MASK = (0x2000000 - 1) & ~0x3ffff;
+
+ ixp2000_pci_preinit();
+}
+
+int ixdp2800_pci_setup(int nr, struct pci_sys_data *sys)
+{
+ sys->mem_offset = 0x00000000;
+
+ ixp2000_pci_setup(nr, sys);
+
+ return 1;
+}
+
+static int __init ixdp2800_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 which is invalid.
+ */
+ if(!dev->bus->self) {
+ if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN )
+ return IRQ_IXDP2800_INGRESS_NPU;
+
+ return -1;
+ }
+
+ /*
+ * Bridge behind the PMC slot.
+ */
+ if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN &&
+ dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN &&
+ !dev->bus->parent->self->bus->parent)
+ return IRQ_IXDP2800_PMC;
+
+ /*
+ * Device behind the first bridge
+ */
+ if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) {
+ switch(dev->devfn) {
+ case IXDP2X00_PMC_DEVFN:
+ return IRQ_IXDP2800_PMC;
+
+ case IXDP2800_MASTER_ENET_DEVFN:
+ return IRQ_IXDP2800_EGRESS_ENET;
+
+ case IXDP2800_SWITCH_FABRIC_DEVFN:
+ return IRQ_IXDP2800_FABRIC;
+ }
+ }
+
+ return -1;
+ } else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */
+}
+
+static void ixdp2800_pci_postinit(void)
+{
+ struct pci_dev *dev;
+
+ if (ixdp2x00_master_npu()) {
+ dev = pci_find_slot(1, IXDP2800_SLAVE_ENET_DEVFN);
+ pci_remove_bus_device(dev);
+ } else {
+ dev = pci_find_slot(1, IXDP2800_MASTER_ENET_DEVFN);
+ pci_remove_bus_device(dev);
+
+ ixdp2x00_slave_pci_postinit();
+ }
+}
+
+struct hw_pci ixdp2800_pci __initdata = {
+ .nr_controllers = 1,
+ .setup = ixdp2800_pci_setup,
+ .preinit = ixdp2800_pci_preinit,
+ .postinit = ixdp2800_pci_postinit,
+ .scan = ixp2000_pci_scan_bus,
+ .map_irq = ixdp2800_pci_map_irq,
+};
+
+int __init ixdp2800_pci_init(void)
+{
+ if (machine_is_ixdp2800())
+ pci_common_init(&ixdp2800_pci);
+
+ return 0;
+}
+
+subsys_initcall(ixdp2800_pci_init);
+
+void ixdp2800_init_irq(void)
+{
+ ixdp2x00_init_irq(IXDP2800_CPLD_INT_STAT, IXDP2800_CPLD_INT_MASK, IXDP2800_NR_IRQS);
+}
+
+MACHINE_START(IXDP2800, "Intel IXDP2800 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(ixdp2800_init_irq)
+ .timer = &ixdp2800_timer,
+ INIT_MACHINE(ixdp2x00_init_machine)
+MACHINE_END
+