zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-ixp2000/enp2611.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-ixp2000/enp2611.c
new file mode 100644
index 0000000..4867f40
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-ixp2000/enp2611.c
@@ -0,0 +1,265 @@
+/*
+ * arch/arm/mach-ixp2000/enp2611.c
+ *
+ * Radisys ENP-2611 support.
+ *
+ * Created 2004 by Lennert Buytenhek from the ixdp2x01 code. The
+ * original version carries the following notices:
+ *
+ * Original Author: Andrzej Mialkowski <andrzej.mialkowski@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002-2003 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/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <mach/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/arch.h>
+#include <asm/mach/flash.h>
+
+/*************************************************************************
+ * ENP-2611 timer tick configuration
+ *************************************************************************/
+static void __init enp2611_timer_init(void)
+{
+ ixp2000_init_time(50 * 1000 * 1000);
+}
+
+static struct sys_timer enp2611_timer = {
+ .init = enp2611_timer_init,
+ .offset = ixp2000_gettimeoffset,
+};
+
+
+/*************************************************************************
+ * ENP-2611 I/O
+ *************************************************************************/
+static struct map_desc enp2611_io_desc[] __initdata = {
+ {
+ .virtual = ENP2611_CALEB_VIRT_BASE,
+ .pfn = __phys_to_pfn(ENP2611_CALEB_PHYS_BASE),
+ .length = ENP2611_CALEB_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = ENP2611_PM3386_0_VIRT_BASE,
+ .pfn = __phys_to_pfn(ENP2611_PM3386_0_PHYS_BASE),
+ .length = ENP2611_PM3386_0_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = ENP2611_PM3386_1_VIRT_BASE,
+ .pfn = __phys_to_pfn(ENP2611_PM3386_1_PHYS_BASE),
+ .length = ENP2611_PM3386_1_SIZE,
+ .type = MT_DEVICE,
+ }
+};
+
+void __init enp2611_map_io(void)
+{
+ ixp2000_map_io();
+ iotable_init(enp2611_io_desc, ARRAY_SIZE(enp2611_io_desc));
+}
+
+
+/*************************************************************************
+ * ENP-2611 PCI
+ *************************************************************************/
+static int enp2611_pci_setup(int nr, struct pci_sys_data *sys)
+{
+ sys->mem_offset = 0xe0000000;
+ ixp2000_pci_setup(nr, sys);
+ return 1;
+}
+
+static void __init enp2611_pci_preinit(void)
+{
+ ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
+ ixp2000_pci_preinit();
+ pcibios_setup("firmware");
+}
+
+static inline int enp2611_pci_valid_device(struct pci_bus *bus,
+ unsigned int devfn)
+{
+ /* The 82559 ethernet controller appears at both PCI:1:0:0 and
+ * PCI:1:2:0, so let's pretend the second one isn't there.
+ */
+ if (bus->number == 0x01 && devfn == 0x10)
+ return 0;
+
+ return 1;
+}
+
+static int enp2611_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 *value)
+{
+ if (enp2611_pci_valid_device(bus, devfn))
+ return ixp2000_pci_read_config(bus, devfn, where, size, value);
+
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+static int enp2611_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 value)
+{
+ if (enp2611_pci_valid_device(bus, devfn))
+ return ixp2000_pci_write_config(bus, devfn, where, size, value);
+
+ return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+static struct pci_ops enp2611_pci_ops = {
+ .read = enp2611_pci_read_config,
+ .write = enp2611_pci_write_config
+};
+
+static struct pci_bus * __init enp2611_pci_scan_bus(int nr,
+ struct pci_sys_data *sys)
+{
+ return pci_scan_root_bus(NULL, sys->busnr, &enp2611_pci_ops, sys,
+ &sys->resources);
+}
+
+static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot,
+ u8 pin)
+{
+ int irq;
+
+ if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 0) {
+ /* IXP2400. */
+ irq = IRQ_IXP2000_PCIA;
+ } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 1) {
+ /* 21555 non-transparent bridge. */
+ irq = IRQ_IXP2000_PCIB;
+ } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 4) {
+ /* PCI2050B transparent bridge. */
+ irq = -1;
+ } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 0) {
+ /* 82559 ethernet. */
+ irq = IRQ_IXP2000_PCIA;
+ } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 1) {
+ /* SPI-3 option board. */
+ irq = IRQ_IXP2000_PCIB;
+ } else {
+ printk(KERN_ERR "enp2611_pci_map_irq() called for unknown "
+ "device PCI:%d:%d:%d\n", dev->bus->number,
+ PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+ irq = -1;
+ }
+
+ return irq;
+}
+
+struct hw_pci enp2611_pci __initdata = {
+ .nr_controllers = 1,
+ .setup = enp2611_pci_setup,
+ .preinit = enp2611_pci_preinit,
+ .scan = enp2611_pci_scan_bus,
+ .map_irq = enp2611_pci_map_irq,
+};
+
+int __init enp2611_pci_init(void)
+{
+ if (machine_is_enp2611())
+ pci_common_init(&enp2611_pci);
+
+ return 0;
+}
+
+subsys_initcall(enp2611_pci_init);
+
+
+/*************************************************************************
+ * ENP-2611 Machine Initialization
+ *************************************************************************/
+static struct flash_platform_data enp2611_flash_platform_data = {
+ .map_name = "cfi_probe",
+ .width = 1,
+};
+
+static struct ixp2000_flash_data enp2611_flash_data = {
+ .platform_data = &enp2611_flash_platform_data,
+ .nr_banks = 1
+};
+
+static struct resource enp2611_flash_resource = {
+ .start = 0xc4000000,
+ .end = 0xc4000000 + 0x00ffffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device enp2611_flash = {
+ .name = "IXP2000-Flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &enp2611_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &enp2611_flash_resource,
+};
+
+static struct ixp2000_i2c_pins enp2611_i2c_gpio_pins = {
+ .sda_pin = ENP2611_GPIO_SDA,
+ .scl_pin = ENP2611_GPIO_SCL,
+};
+
+static struct platform_device enp2611_i2c_controller = {
+ .name = "IXP2000-I2C",
+ .id = 0,
+ .dev = {
+ .platform_data = &enp2611_i2c_gpio_pins
+ },
+ .num_resources = 0
+};
+
+static struct platform_device *enp2611_devices[] __initdata = {
+ &enp2611_flash,
+ &enp2611_i2c_controller
+};
+
+static void __init enp2611_init_machine(void)
+{
+ platform_add_devices(enp2611_devices, ARRAY_SIZE(enp2611_devices));
+ ixp2000_uart_init();
+}
+
+
+MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board")
+ /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+ .atag_offset = 0x100,
+ .map_io = enp2611_map_io,
+ .init_irq = ixp2000_init_irq,
+ .timer = &enp2611_timer,
+ .init_machine = enp2611_init_machine,
+ .restart = ixp2000_restart,
+MACHINE_END
+
+