OpenWrt – Rev 1

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--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -176,6 +176,15 @@ config ARCH_PRPMC1100
          PrPCM1100 Processor Mezanine Module. For more information on
          this platform, see <file:Documentation/arm/IXP4xx>.
 
+config MACH_TW2662
+        bool "Titan Wireless TW-266-2"
+        select PCI
+        help
+          Say 'Y' here if you want your kernel to support the Titan
+          Wireless TW266-2. For more information on this platform,
+          see http://openwrt.org
+
+
 config MACH_TW5334
        bool "Titan Wireless TW-533-4"
        select PCI
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -25,6 +25,7 @@ obj-pci-$(CONFIG_MACH_SIDEWINDER)     += sid
 obj-pci-$(CONFIG_MACH_COMPEXWP18)      += ixdp425-pci.o
 obj-pci-$(CONFIG_MACH_WRT300NV2)               += wrt300nv2-pci.o
 obj-pci-$(CONFIG_MACH_AP1000)          += ixdp425-pci.o
+obj-pci-$(CONFIG_MACH_TW2662)          += tw2662-pci.o
 obj-pci-$(CONFIG_MACH_TW5334)          += tw5334-pci.o
 obj-pci-$(CONFIG_MACH_MI424WR)         += mi424wr-pci.o
 obj-pci-$(CONFIG_MACH_USR8200)         += usr8200-pci.o
@@ -54,6 +55,7 @@ obj-$(CONFIG_MACH_SIDEWINDER) += sidewin
 obj-$(CONFIG_MACH_COMPEXWP18)  += compex42x-setup.o
 obj-$(CONFIG_MACH_WRT300NV2)   += wrt300nv2-setup.o
 obj-$(CONFIG_MACH_AP1000)      += ap1000-setup.o
+obj-$(CONFIG_MACH_TW2662)      += tw2662-setup.o
 obj-$(CONFIG_MACH_TW5334)      += tw5334-setup.o
 obj-$(CONFIG_MACH_MI424WR)     += mi424wr-setup.o
 obj-$(CONFIG_MACH_USR8200)     += usr8200-setup.o
--- a/arch/arm/mach-ixp4xx/include/mach/uncompress.h
+++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
@@ -45,7 +45,7 @@ static __inline__ void __arch_decomp_set
            machine_is_devixp() || machine_is_miccpt() || machine_is_mic256() ||
            machine_is_pronghorn() || machine_is_pronghorn_metro() ||
            machine_is_wrt300nv2() || machine_is_tw5334() ||
-           machine_is_usr8200())
+           machine_is_usr8200() || machine_is_tw2662())
                uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
        else
                uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/tw2662-pci.c
@@ -0,0 +1,67 @@
+/*
+ * arch/arm/mach-ixp4xx/tw2662-pci.c
+ *
+ * PCI setup routines for Tiran Wireless TW-266-2 platform
+ *
+ * Copyright (C) 2002 Jungo Software Technologies.
+ * Copyright (C) 2003 MontaVista Softwrae, Inc.
+ * Copyright (C) 2010 Alexandros C. Couloumbis <alex@ozo.com>
+ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ * Maintainer: Alexandros C. Couloumbis <alex@ozo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+
+#define SLOT0_DEVID    1
+#define SLOT1_DEVID    3
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define SLOT0_INTA     11
+#define SLOT1_INTA     9
+
+void __init tw2662_pci_preinit(void)
+{
+       irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
+       irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
+       ixp4xx_pci_preinit();
+}
+
+static int __init tw2662_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+       if (slot == SLOT0_DEVID)
+               return IXP4XX_GPIO_IRQ(SLOT0_INTA);
+       else if (slot == SLOT1_DEVID)
+               return IXP4XX_GPIO_IRQ(SLOT1_INTA);
+       else return -1;
+}
+
+struct hw_pci tw2662_pci __initdata = {
+       .nr_controllers = 1,
+       .preinit =        tw2662_pci_preinit,
+       .ops =            &ixp4xx_ops,
+       .setup =          ixp4xx_setup,
+       .map_irq =        tw2662_map_irq,
+};
+
+int __init tw2662_pci_init(void)
+{
+        if (machine_is_tw2662())
+               pci_common_init(&tw2662_pci);
+        return 0;
+}
+
+subsys_initcall(tw2662_pci_init);
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/tw2662-setup.c
@@ -0,0 +1,196 @@
+/*
+ * arch/arm/mach-ixp4xx/tw2662-setup.c
+ *
+ * Titan Wireless TW-266-2
+ *
+ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010 Alexandros C. Couloumbis <alex@ozo.com>
+ *
+ * based on ap1000-setup.c:
+ *     Author: Imre Kaloz <Kaloz@openwrt.org>
+ */
+
+#include <linux/if_ether.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+#include <linux/slab.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+/* gpio mask used by platform device */
+#define TW2662_GPIO_MASK        (1 << 1) | (1 << 3) | (1 << 5) | (1 << 7)
+
+static struct flash_platform_data tw2662_flash_data = {
+       .map_name       = "cfi_probe",
+       .width          = 2,
+};
+
+static struct resource tw2662_flash_resource = {
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device tw2662_flash = {
+       .name           = "IXP4XX-Flash",
+       .id             = 0,
+       .dev            = {
+               .platform_data = &tw2662_flash_data,
+       },
+       .num_resources  = 1,
+       .resource       = &tw2662_flash_resource,
+};
+
+static struct resource tw2662_uart_resources[] = {
+       {
+               .start          = IXP4XX_UART1_BASE_PHYS,
+               .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
+               .flags          = IORESOURCE_MEM
+       },
+       {
+               .start          = IXP4XX_UART2_BASE_PHYS,
+               .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+               .flags          = IORESOURCE_MEM
+       }
+};
+
+static struct plat_serial8250_port tw2662_uart_data[] = {
+       {
+               .mapbase        = IXP4XX_UART1_BASE_PHYS,
+               .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+               .irq            = IRQ_IXP4XX_UART1,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+               .iotype         = UPIO_MEM,
+               .regshift       = 2,
+               .uartclk        = IXP4XX_UART_XTAL,
+       },
+       {
+               .mapbase        = IXP4XX_UART2_BASE_PHYS,
+               .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+               .irq            = IRQ_IXP4XX_UART2,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+               .iotype         = UPIO_MEM,
+               .regshift       = 2,
+               .uartclk        = IXP4XX_UART_XTAL,
+       },
+       { },
+};
+
+static struct platform_device tw2662_uart = {
+       .name                   = "serial8250",
+       .id                     = PLAT8250_DEV_PLATFORM,
+       .dev.platform_data      = tw2662_uart_data,
+       .num_resources          = 2,
+       .resource               = tw2662_uart_resources
+};
+
+/* Built-in 10/100 Ethernet MAC interfaces */
+static struct eth_plat_info tw2662_plat_eth[] = {
+        {
+                .phy            = 3,
+                .rxq            = 3,
+                .txreadyq       = 20,
+        }, {
+                .phy            = 1,
+                .rxq            = 4,
+                .txreadyq       = 21,
+        }
+};
+
+static struct platform_device tw2662_eth[] = {
+       {
+               .name                   = "ixp4xx_eth",
+               .id                     = IXP4XX_ETH_NPEB,
+               .dev.platform_data      = tw2662_plat_eth,
+               .dev.coherent_dma_mask  = DMA_BIT_MASK(32),
+       }, {
+               .name                   = "ixp4xx_eth",
+               .id                     = IXP4XX_ETH_NPEC,
+               .dev.platform_data      = tw2662_plat_eth + 1,
+               .dev.coherent_dma_mask  = DMA_BIT_MASK(32),
+       }
+};
+
+
+static struct platform_device *tw2662_devices[] __initdata = {
+       &tw2662_flash,
+       &tw2662_uart,
+       &tw2662_eth[0],
+       &tw2662_eth[1],
+};
+
+static char tw2662_mem_fixup[] __initdata = "mem=64M ";
+
+static void __init tw2662_fixup(struct tag *tags, char **cmdline)
+{
+       struct tag *t = tags;
+       char *p = *cmdline;
+
+       /* Find the end of the tags table, taking note of any cmdline tag. */
+       for (; t->hdr.size; t = tag_next(t)) {
+               if (t->hdr.tag == ATAG_CMDLINE) {
+                       p = t->u.cmdline.cmdline;
+               }
+       }
+
+       /* Overwrite the end of the table with a new cmdline tag. */
+       t->hdr.tag = ATAG_CMDLINE;
+       t->hdr.size = (sizeof (struct tag_header) +
+               strlen(tw2662_mem_fixup) + strlen(p) + 1 + 4) >> 2;
+       strlcpy(t->u.cmdline.cmdline, tw2662_mem_fixup, COMMAND_LINE_SIZE);
+       strlcpy(t->u.cmdline.cmdline + strlen(tw2662_mem_fixup), p,
+               COMMAND_LINE_SIZE - strlen(tw2662_mem_fixup));
+
+       /* Terminate the table. */
+       t = tag_next(t);
+       t->hdr.tag = ATAG_NONE;
+       t->hdr.size = 0;
+}
+
+static void __init tw2662_init(void)
+{
+       ixp4xx_sys_init();
+
+       tw2662_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+       tw2662_flash_resource.end =
+               IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+
+       platform_add_devices(tw2662_devices, ARRAY_SIZE(tw2662_devices));
+
+       if (!(is_valid_ether_addr(tw2662_plat_eth[0].hwaddr)))
+               random_ether_addr(tw2662_plat_eth[0].hwaddr);
+       if (!(is_valid_ether_addr(tw2662_plat_eth[1].hwaddr))) {
+               memcpy(tw2662_plat_eth[1].hwaddr, tw2662_plat_eth[0].hwaddr, ETH_ALEN);
+               tw2662_plat_eth[1].hwaddr[5] = (tw2662_plat_eth[0].hwaddr[5] + 1);
+       }
+
+}
+
+#ifdef CONFIG_MACH_TW2662
+MACHINE_START(TW2662, "Titan Wireless TW-266-2")
+       /* Maintainer: Alexandros C. Couloumbis <alex@ozo.com> */
+       .fixup          = tw2662_fixup,
+       .map_io         = ixp4xx_map_io,
+       .init_irq       = ixp4xx_init_irq,
+       .init_time      = ixp4xx_timer_init,
+       .atag_offset    = 0x0100,
+       .init_machine   = tw2662_init,
+#if defined(CONFIG_PCI)
+       .dma_zone_size  = SZ_64M,
+#endif
+       .restart        = ixp4xx_restart,
+MACHINE_END
+#endif

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