target/linux/ixp4xx/patches-3.3/115-sidewinder_support.patch

   1 From 60bdaaaf3446b4237566c6e04855186fc7bd766b Mon Sep 17 00:00:00 2001
   2 From: Imre Kaloz <kaloz@openwrt.org>
   3 Date: Sun, 13 Jul 2008 22:46:45 +0200
   4 Subject: [PATCH] Add support for the ADI Sidewinder
   5
   6 Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
   7 ---
   8  arch/arm/mach-ixp4xx/Kconfig            |   10 ++-
   9  arch/arm/mach-ixp4xx/Makefile           |    2 +
  10  arch/arm/mach-ixp4xx/sidewinder-pci.c   |   68 ++++++++++++++
  11  arch/arm/mach-ixp4xx/sidewinder-setup.c |  151 +++++++++++++++++++++++++++++++
  12  4 files changed, 230 insertions(+), 1 deletions(-)
  13  create mode 100644 arch/arm/mach-ixp4xx/sidewinder-pci.c
  14  create mode 100644 arch/arm/mach-ixp4xx/sidewinder-setup.c
  15
  16 --- a/arch/arm/mach-ixp4xx/Kconfig
  17 +++ b/arch/arm/mach-ixp4xx/Kconfig
  18 @@ -81,6 +81,14 @@ config MACH_PRONGHORN
  19  config MACH_PRONGHORNMETRO
  20         def_bool MACH_PRONGHORN
  21
  22 +config MACH_SIDEWINDER
  23 +       bool "ADI Sidewinder"
  24 +       select PCI
  25 +       help
  26 +         Say 'Y' here if you want your kernel to support the ADI
  27 +         Engineering Sidewinder board. For more information on this
  28 +         platform, see http://www.adiengineering.com
  29 +
  30  config ARCH_IXDP425
  31         bool "IXDP425"
  32         help
  33 @@ -177,7 +185,7 @@ config MACH_ARCOM_VULCAN
  34  #
  35  config CPU_IXP46X
  36         bool
  37 -       depends on MACH_IXDP465
  38 +       depends on MACH_IXDP465 || MACH_SIDEWINDER
  39         default y
  40
  41  config CPU_IXP43X
  42 --- a/arch/arm/mach-ixp4xx/Makefile
  43 +++ b/arch/arm/mach-ixp4xx/Makefile
  44 @@ -20,6 +20,7 @@ obj-pci-$(CONFIG_MACH_WG302V2)                += wg302
  45  obj-pci-$(CONFIG_MACH_FSG)             += fsg-pci.o
  46  obj-pci-$(CONFIG_MACH_ARCOM_VULCAN)    += vulcan-pci.o
  47  obj-pci-$(CONFIG_MACH_PRONGHORN)       += pronghorn-pci.o
  48 +obj-pci-$(CONFIG_MACH_SIDEWINDER)      += sidewinder-pci.o
  49
  50  obj-y  += common.o
  51
  52 @@ -41,6 +42,7 @@ obj-$(CONFIG_MACH_FSG)                += fsg-setup.o
  53  obj-$(CONFIG_MACH_GORAMO_MLR)  += goramo_mlr.o
  54  obj-$(CONFIG_MACH_ARCOM_VULCAN)        += vulcan-setup.o
  55  obj-$(CONFIG_MACH_PRONGHORN)   += pronghorn-setup.o
  56 +obj-$(CONFIG_MACH_SIDEWINDER)  += sidewinder-setup.o
  57
  58  obj-$(CONFIG_PCI)              += $(obj-pci-$(CONFIG_PCI)) common-pci.o
  59  obj-$(CONFIG_IXP4XX_QMGR)      += ixp4xx_qmgr.o
  60 --- /dev/null
  61 +++ b/arch/arm/mach-ixp4xx/sidewinder-pci.c
  62 @@ -0,0 +1,68 @@
  63 +/*
  64 + * arch/arch/mach-ixp4xx/pronghornmetro-pci.c
  65 + *
  66 + * PCI setup routines for ADI Engineering Sidewinder
  67 + *
  68 + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  69 + *
  70 + * based on coyote-pci.c:
  71 + *     Copyright (C) 2002 Jungo Software Technologies.
  72 + *     Copyright (C) 2003 MontaVista Softwrae, Inc.
  73 + *
  74 + * Maintainer: Imre Kaloz <kaloz@openwrt.org>
  75 + *
  76 + * This program is free software; you can redistribute it and/or modify
  77 + * it under the terms of the GNU General Public License version 2 as
  78 + * published by the Free Software Foundation.
  79 + *
  80 + */
  81 +
  82 +#include <linux/kernel.h>
  83 +#include <linux/pci.h>
  84 +#include <linux/init.h>
  85 +#include <linux/irq.h>
  86 +
  87 +#include <asm/mach-types.h>
  88 +#include <mach/hardware.h>
  89 +#include <asm/irq.h>
  90 +
  91 +#include <asm/mach/pci.h>
  92 +
  93 +void __init sidewinder_pci_preinit(void)
  94 +{
  95 +       irq_set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
  96 +       irq_set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
  97 +       irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
  98 +
  99 +       ixp4xx_pci_preinit();
 100 +}
 101 +
 102 +static int __init sidewinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 103 +{
 104 +       if (slot == 1)
 105 +               return IRQ_IXP4XX_GPIO11;
 106 +       else if (slot == 2)
 107 +               return IRQ_IXP4XX_GPIO10;
 108 +       else if (slot == 3)
 109 +               return IRQ_IXP4XX_GPIO9;
 110 +       else
 111 +               return -1;
 112 +}
 113 +
 114 +struct hw_pci sidewinder_pci __initdata = {
 115 +       .nr_controllers = 1,
 116 +       .preinit        = sidewinder_pci_preinit,
 117 +       .swizzle        = pci_std_swizzle,
 118 +       .setup          = ixp4xx_setup,
 119 +       .scan           = ixp4xx_scan_bus,
 120 +       .map_irq        = sidewinder_map_irq,
 121 +};
 122 +
 123 +int __init sidewinder_pci_init(void)
 124 +{
 125 +       if (machine_is_sidewinder())
 126 +               pci_common_init(&sidewinder_pci);
 127 +       return 0;
 128 +}
 129 +
 130 +subsys_initcall(sidewinder_pci_init);
 131 --- /dev/null
 132 +++ b/arch/arm/mach-ixp4xx/sidewinder-setup.c
 133 @@ -0,0 +1,151 @@
 134 +/*
 135 + * arch/arm/mach-ixp4xx/sidewinder-setup.c
 136 + *
 137 + * Board setup for the ADI Engineering Sidewinder
 138 + *
 139 + * Copyright (C) 2008 Imre Kaloz <Kaloz@openwrt.org>
 140 + *
 141 + * based on coyote-setup.c:
 142 + *      Copyright (C) 2003-2005 MontaVista Software, Inc.
 143 + *
 144 + * Author: Imre Kaloz <Kaloz@openwrt.org>
 145 + */
 146 +
 147 +#include <linux/kernel.h>
 148 +#include <linux/serial.h>
 149 +#include <linux/serial_8250.h>
 150 +
 151 +#include <asm/mach-types.h>
 152 +#include <asm/mach/arch.h>
 153 +#include <asm/mach/flash.h>
 154 +
 155 +static struct flash_platform_data sidewinder_flash_data = {
 156 +       .map_name       = "cfi_probe",
 157 +       .width          = 2,
 158 +};
 159 +
 160 +static struct resource sidewinder_flash_resource = {
 161 +       .flags          = IORESOURCE_MEM,
 162 +};
 163 +
 164 +static struct platform_device sidewinder_flash = {
 165 +       .name           = "IXP4XX-Flash",
 166 +       .id             = 0,
 167 +       .dev            = {
 168 +               .platform_data = &sidewinder_flash_data,
 169 +       },
 170 +       .num_resources  = 1,
 171 +       .resource       = &sidewinder_flash_resource,
 172 +};
 173 +
 174 +static struct resource sidewinder_uart_resources[] = {
 175 +       {
 176 +               .start  = IXP4XX_UART1_BASE_PHYS,
 177 +               .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
 178 +               .flags  = IORESOURCE_MEM,
 179 +       },
 180 +       {
 181 +               .start  = IXP4XX_UART2_BASE_PHYS,
 182 +               .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
 183 +               .flags  = IORESOURCE_MEM,
 184 +       }
 185 +};
 186 +
 187 +static struct plat_serial8250_port sidewinder_uart_data[] = {
 188 +       {
 189 +               .mapbase        = IXP4XX_UART1_BASE_PHYS,
 190 +               .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 191 +               .irq            = IRQ_IXP4XX_UART1,
 192 +               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 193 +               .iotype         = UPIO_MEM,
 194 +               .regshift       = 2,
 195 +               .uartclk        = IXP4XX_UART_XTAL,
 196 +       },
 197 +       {
 198 +               .mapbase        = IXP4XX_UART2_BASE_PHYS,
 199 +               .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 200 +               .irq            = IRQ_IXP4XX_UART2,
 201 +               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 202 +               .iotype         = UPIO_MEM,
 203 +               .regshift       = 2,
 204 +               .uartclk        = IXP4XX_UART_XTAL,
 205 +       },
 206 +       { },
 207 +};
 208 +
 209 +static struct platform_device sidewinder_uart = {
 210 +       .name           = "serial8250",
 211 +       .id             = PLAT8250_DEV_PLATFORM,
 212 +       .dev            = {
 213 +               .platform_data  = sidewinder_uart_data,
 214 +       },
 215 +       .num_resources  = ARRAY_SIZE(sidewinder_uart_resources),
 216 +       .resource       = sidewinder_uart_resources,
 217 +};
 218 +
 219 +static struct eth_plat_info sidewinder_plat_eth[] = {
 220 +       {
 221 +               .phy            = 5,
 222 +               .rxq            = 3,
 223 +               .txreadyq       = 20,
 224 +       }, {
 225 +               .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
 226 +               .phy_mask       = 0x1e,
 227 +               .rxq            = 4,
 228 +               .txreadyq       = 21,
 229 +       }, {
 230 +               .phy            = 31,
 231 +               .rxq            = 2,
 232 +               .txreadyq       = 19,
 233 +       }
 234 +};
 235 +
 236 +static struct platform_device sidewinder_eth[] = {
 237 +       {
 238 +               .name                   = "ixp4xx_eth",
 239 +               .id                     = IXP4XX_ETH_NPEB,
 240 +               .dev.platform_data      = sidewinder_plat_eth,
 241 +       }, {
 242 +               .name                   = "ixp4xx_eth",
 243 +               .id                     = IXP4XX_ETH_NPEC,
 244 +               .dev.platform_data      = sidewinder_plat_eth + 1,
 245 +       }, {
 246 +               .name                   = "ixp4xx_eth",
 247 +               .id                     = IXP4XX_ETH_NPEA,
 248 +               .dev.platform_data      = sidewinder_plat_eth + 2,
 249 +       }
 250 +};
 251 +
 252 +static struct platform_device *sidewinder_devices[] __initdata = {
 253 +       &sidewinder_flash,
 254 +       &sidewinder_uart,
 255 +       &sidewinder_eth[0],
 256 +       &sidewinder_eth[1],
 257 +       &sidewinder_eth[2],
 258 +};
 259 +
 260 +static void __init sidewinder_init(void)
 261 +{
 262 +       ixp4xx_sys_init();
 263 +
 264 +       sidewinder_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 265 +       sidewinder_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_64M - 1;
 266 +
 267 +       *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
 268 +       *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
 269 +
 270 +       platform_add_devices(sidewinder_devices, ARRAY_SIZE(sidewinder_devices));
 271 +}
 272 +
 273 +MACHINE_START(SIDEWINDER, "ADI Engineering Sidewinder")
 274 +       /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 275 +       .map_io         = ixp4xx_map_io,
 276 +       .init_irq       = ixp4xx_init_irq,
 277 +       .timer          = &ixp4xx_timer,
 278 +       .atag_offset    = 0x0100,
 279 +       .init_machine   = sidewinder_init,
 280 +#if defined(CONFIG_PCI)
 281 +       .dma_zone_size  = SZ_64M,
 282 +#endif
 283 +       .restart        = ixp4xx_restart,
 284 +MACHINE_END