target/linux/ixp4xx/patches-2.6.27/185-mi424wr_support.patch

   1 --- /dev/null
   2 +++ b/arch/arm/mach-ixp4xx/mi424wr-pci.c
   3 @@ -0,0 +1,71 @@
   4 +/*
   5 + * arch/arm/mach-ixp4xx/mi424wr-pci.c
   6 + *
   7 + * Actiontec MI424WR board-level PCI initialization
   8 + *
   9 + * Copyright (C) 2008 Jose Vasconcellos
  10 + *
  11 + * Maintainer: Jose Vasconcellos <jvasco@verizon.net>
  12 + *
  13 + * This program is free software; you can redistribute it and/or modify
  14 + * it under the terms of the GNU General Public License version 2 as
  15 + * published by the Free Software Foundation.
  16 + *
  17 + */
  18 +
  19 +#include <linux/kernel.h>
  20 +#include <linux/pci.h>
  21 +#include <linux/init.h>
  22 +#include <linux/irq.h>
  23 +
  24 +#include <asm/mach-types.h>
  25 +#include <asm/mach/pci.h>
  26 +
  27 +/* PCI controller GPIO to IRQ pin mappings
  28 + * This information was obtained from Actiontec's GPL release.
  29 + *
  30 + *             INTA            INTB
  31 + * SLOT 13     8               6
  32 + * SLOT 14     7               8
  33 + * SLOT 15     6               7
  34 + */
  35 +
  36 +void __init mi424wr_pci_preinit(void)
  37 +{
  38 +       set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
  39 +       set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
  40 +       set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
  41 +
  42 +       ixp4xx_pci_preinit();
  43 +}
  44 +
  45 +static int __init mi424wr_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  46 +{
  47 +       if (slot == 13)
  48 +               return IRQ_IXP4XX_GPIO8;
  49 +       if (slot == 14)
  50 +               return IRQ_IXP4XX_GPIO7;
  51 +       if (slot == 15)
  52 +               return IRQ_IXP4XX_GPIO6;
  53 +
  54 +       return -1;
  55 +}
  56 +
  57 +struct hw_pci mi424wr_pci __initdata = {
  58 +       .nr_controllers = 1,
  59 +       .preinit        = mi424wr_pci_preinit,
  60 +       .swizzle        = pci_std_swizzle,
  61 +       .setup          = ixp4xx_setup,
  62 +       .scan           = ixp4xx_scan_bus,
  63 +       .map_irq        = mi424wr_map_irq,
  64 +};
  65 +
  66 +int __init mi424wr_pci_init(void)
  67 +{
  68 +       if (machine_is_mi424wr())
  69 +               pci_common_init(&mi424wr_pci);
  70 +       return 0;
  71 +}
  72 +
  73 +subsys_initcall(mi424wr_pci_init);
  74 +
  75 --- /dev/null
  76 +++ b/arch/arm/mach-ixp4xx/mi424wr-setup.c
  77 @@ -0,0 +1,344 @@
  78 +/*
  79 + * arch/arm/mach-ixp4xx/mi424wr-setup.c
  80 + *
  81 + * Actiontec MI424-WR board setup
  82 + * Copyright (c) 2008 Jose Vasconcellos
  83 + *
  84 + * Based on Gemtek GTWX5715 by
  85 + * Copyright (C) 2004 George T. Joseph
  86 + * Derived from Coyote
  87 + *
  88 + * This program is free software; you can redistribute it and/or
  89 + * modify it under the terms of the GNU General Public License
  90 + * as published by the Free Software Foundation; either version 2
  91 + * of the License, or (at your option) any later version.
  92 + *
  93 + * This program is distributed in the hope that it will be useful,
  94 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
  95 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  96 + * GNU General Public License for more details.
  97 + *
  98 + * You should have received a copy of the GNU General Public License
  99 + * along with this program; if not, write to the Free Software
 100 + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 101 + *
 102 + */
 103 +
 104 +#include <linux/init.h>
 105 +#include <linux/device.h>
 106 +#include <linux/serial.h>
 107 +#include <linux/serial_8250.h>
 108 +#include <linux/types.h>
 109 +#include <linux/memory.h>
 110 +#include <linux/leds.h>
 111 +#include <linux/spi/spi_gpio.h>
 112 +
 113 +#include <asm/setup.h>
 114 +#include <asm/irq.h>
 115 +#include <asm/io.h>
 116 +#include <asm/mach-types.h>
 117 +#include <asm/mach/arch.h>
 118 +#include <asm/mach/flash.h>
 119 +
 120 +/*
 121 + * GPIO 2,3,4 and 9 are hard wired to the Micrel/Kendin KS8995M Switch
 122 + * and operate as an SPI type interface.  The details of the interface
 123 + * are available on Kendin/Micrel's web site.
 124 + */
 125 +
 126 +#define MI424WR_KSSPI_SELECT           9
 127 +#define MI424WR_KSSPI_TXD              4
 128 +#define MI424WR_KSSPI_CLOCK            2
 129 +#define MI424WR_KSSPI_RXD              3
 130 +
 131 +/*
 132 + * The "reset" button is wired to GPIO 10.
 133 + * The GPIO is brought "low" when the button is pushed.
 134 + */
 135 +
 136 +#define MI424WR_BUTTON_GPIO    10
 137 +#define MI424WR_BUTTON_IRQ     IRQ_IXP4XX_GPIO10
 138 +
 139 +#define MI424WR_MOCA_WAN_LED   11
 140 +
 141 +/* Latch on CS1 - taken from Actiontec's 2.4 source code
 142 + *
 143 + * default latch value
 144 + * 0  - power alarm led (red)           0 (off)
 145 + * 1  - power led (green)               0 (off)
 146 + * 2  - wireless led    (green)         1 (off)
 147 + * 3  - no internet led (red)           0 (off)
 148 + * 4  - internet ok led (green)         0 (off)
 149 + * 5  - moca LAN                        0 (off)
 150 + * 6  - WAN alarm led (red)            0 (off)
 151 + * 7  - PCI reset                       1 (not reset)
 152 + * 8  - IP phone 1 led (green)          1 (off)
 153 + * 9  - IP phone 2 led (green)          1 (off)
 154 + * 10 - VOIP ready led (green)          1 (off)
 155 + * 11 - PSTN relay 1 control            0 (PSTN)
 156 + * 12 - PSTN relay 1 control            0 (PSTN)
 157 + * 13 - N/A
 158 + * 14 - N/A
 159 + * 15 - N/A
 160 + */
 161 +
 162 +#define MI424WR_LATCH_MASK              0x04
 163 +#define MI424WR_LATCH_DEFAULT           0x1f86
 164 +
 165 +#define MI424WR_LATCH_ALARM_LED         0x00
 166 +#define MI424WR_LATCH_POWER_LED         0x01
 167 +#define MI424WR_LATCH_WIRELESS_LED      0x02
 168 +#define MI424WR_LATCH_INET_DOWN_LED     0x03
 169 +#define MI424WR_LATCH_INET_OK_LED       0x04
 170 +#define MI424WR_LATCH_MOCA_LAN_LED      0x05
 171 +#define MI424WR_LATCH_WAN_ALARM_LED     0x06
 172 +#define MI424WR_LATCH_PCI_RESET         0x07
 173 +#define MI424WR_LATCH_PHONE1_LED        0x08
 174 +#define MI424WR_LATCH_PHONE2_LED        0x09
 175 +#define MI424WR_LATCH_VOIP_LED          0x10
 176 +#define MI424WR_LATCH_PSTN_RELAY1       0x11
 177 +#define MI424WR_LATCH_PSTN_RELAY2       0x12
 178 +
 179 +/* initialize CS1 to default timings, Intel style, 16-bit bus */
 180 +#define MI424WR_CS1_CONFIG     0x80000002
 181 +
 182 +/* Define both UARTs but they are not easily accessible.
 183 + */
 184 +
 185 +static struct resource mi424wr_uart_resources[] = {
 186 +       {
 187 +               .start  = IXP4XX_UART1_BASE_PHYS,
 188 +               .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
 189 +               .flags  = IORESOURCE_MEM,
 190 +       },
 191 +       {
 192 +               .start  = IXP4XX_UART2_BASE_PHYS,
 193 +               .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
 194 +               .flags  = IORESOURCE_MEM,
 195 +       }
 196 +};
 197 +
 198 +
 199 +static struct plat_serial8250_port mi424wr_uart_platform_data[] = {
 200 +       {
 201 +               .mapbase        = IXP4XX_UART1_BASE_PHYS,
 202 +               .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 203 +               .irq            = IRQ_IXP4XX_UART1,
 204 +               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 205 +               .iotype         = UPIO_MEM,
 206 +               .regshift       = 2,
 207 +               .uartclk        = IXP4XX_UART_XTAL,
 208 +       },
 209 +       {
 210 +               .mapbase        = IXP4XX_UART2_BASE_PHYS,
 211 +               .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 212 +               .irq            = IRQ_IXP4XX_UART2,
 213 +               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 214 +               .iotype         = UPIO_MEM,
 215 +               .regshift       = 2,
 216 +               .uartclk        = IXP4XX_UART_XTAL,
 217 +       },
 218 +       { },
 219 +};
 220 +
 221 +static struct platform_device mi424wr_uart_device = {
 222 +       .name           = "serial8250",
 223 +       .id             = PLAT8250_DEV_PLATFORM,
 224 +       .dev.platform_data      = mi424wr_uart_platform_data,
 225 +       .num_resources  = ARRAY_SIZE(mi424wr_uart_resources),
 226 +       .resource       = mi424wr_uart_resources,
 227 +};
 228 +
 229 +static struct flash_platform_data mi424wr_flash_data = {
 230 +       .map_name       = "cfi_probe",
 231 +       .width          = 2,
 232 +};
 233 +
 234 +static struct resource mi424wr_flash_resource = {
 235 +       .flags          = IORESOURCE_MEM,
 236 +};
 237 +
 238 +static struct platform_device mi424wr_flash = {
 239 +       .name           = "IXP4XX-Flash",
 240 +       .id             = 0,
 241 +       .dev.platform_data = &mi424wr_flash_data,
 242 +       .num_resources  = 1,
 243 +       .resource       = &mi424wr_flash_resource,
 244 +};
 245 +
 246 +static int mi424wr_spi_boardinfo_setup(struct spi_board_info *bi,
 247 +               struct spi_master *master, void *data)
 248 +{
 249 +
 250 +       strlcpy(bi->modalias, "spi-ks8995", sizeof(bi->modalias));
 251 +
 252 +       bi->max_speed_hz = 5000000 /* Hz */;
 253 +       bi->bus_num = master->bus_num;
 254 +       bi->mode = SPI_MODE_0;
 255 +
 256 +       return 0;
 257 +}
 258 +
 259 +static struct spi_gpio_platform_data mi424wr_spi_bus_data = {
 260 +       .pin_cs                 = MI424WR_KSSPI_SELECT,
 261 +       .pin_clk                = MI424WR_KSSPI_CLOCK,
 262 +       .pin_miso               = MI424WR_KSSPI_RXD,
 263 +       .pin_mosi               = MI424WR_KSSPI_TXD,
 264 +       .cs_activelow           = 1,
 265 +       .no_spi_delay           = 1,
 266 +       .boardinfo_setup        = mi424wr_spi_boardinfo_setup,
 267 +};
 268 +
 269 +static struct gpio_led mi424wr_gpio_led[] = {
 270 +       {
 271 +               .name           = "moca-wan",   /* green led */
 272 +               .gpio           = MI424WR_MOCA_WAN_LED,
 273 +               .active_low     = 0,
 274 +       }
 275 +};
 276 +
 277 +static struct gpio_led_platform_data mi424wr_gpio_leds_data = {
 278 +       .num_leds       = 1,
 279 +       .leds           = mi424wr_gpio_led,
 280 +};
 281 +
 282 +static struct platform_device mi424wr_gpio_leds = {
 283 +       .name           = "leds-gpio",
 284 +       .id             = -1,
 285 +       .dev.platform_data = &mi424wr_gpio_leds_data,
 286 +};
 287 +
 288 +static uint16_t latch_value = MI424WR_LATCH_DEFAULT;
 289 +static uint16_t __iomem *iobase;
 290 +
 291 +static void mi424wr_latch_set_led(u8 bit, enum led_brightness value)
 292 +{
 293 +
 294 +       if (((MI424WR_LATCH_MASK >> bit) & 1) ^ (value == LED_OFF))
 295 +               latch_value &= ~(0x1 << bit);
 296 +       else
 297 +               latch_value |= (0x1 << bit);
 298 +
 299 +       __raw_writew(latch_value, iobase);
 300 +
 301 +}
 302 +
 303 +static struct latch_led mi424wr_latch_led[] = {
 304 +       {
 305 +               .name   = "power-alarm",
 306 +               .bit    = MI424WR_LATCH_ALARM_LED,
 307 +       },
 308 +       {
 309 +               .name   = "power-ok",
 310 +               .bit    = MI424WR_LATCH_POWER_LED,
 311 +       },
 312 +       {
 313 +               .name   = "wireless",   /* green led */
 314 +               .bit    = MI424WR_LATCH_WIRELESS_LED,
 315 +       },
 316 +       {
 317 +               .name   = "inet-down",  /* red led */
 318 +               .bit    = MI424WR_LATCH_INET_DOWN_LED,
 319 +       },
 320 +       {
 321 +               .name   = "inet-up",    /* green led */
 322 +               .bit    = MI424WR_LATCH_INET_OK_LED,
 323 +       },
 324 +       {
 325 +               .name   = "moca-lan",   /* green led */
 326 +               .bit    = MI424WR_LATCH_MOCA_LAN_LED,
 327 +       },
 328 +       {
 329 +               .name   = "wan-alarm",  /* red led */
 330 +               .bit    = MI424WR_LATCH_WAN_ALARM_LED,
 331 +       }
 332 +};
 333 +
 334 +static struct latch_led_platform_data mi424wr_latch_leds_data = {
 335 +       .num_leds       = ARRAY_SIZE(mi424wr_latch_led),
 336 +       .mem            = 0x51000000,
 337 +       .leds           = mi424wr_latch_led,
 338 +       .set_led        = mi424wr_latch_set_led,
 339 +};
 340 +
 341 +static struct platform_device mi424wr_latch_leds = {
 342 +       .name           = "leds-latch",
 343 +       .id             = -1,
 344 +       .dev.platform_data = &mi424wr_latch_leds_data,
 345 +};
 346 +
 347 +static struct platform_device mi424wr_spi_bus = {
 348 +       .name           = "spi-gpio",
 349 +       .id             = 0,
 350 +       .dev.platform_data = &mi424wr_spi_bus_data,
 351 +};
 352 +
 353 +static struct eth_plat_info mi424wr_npeb_data = {
 354 +       .phy            = 17,   /* KS8721 */
 355 +       .rxq            = 3,
 356 +       .txreadyq       = 20,
 357 +};
 358 +
 359 +static struct eth_plat_info mi424wr_npec_data = {
 360 +       .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
 361 +       .phy_mask       = 0x1e, /* ports 1-4 of the KS8995 switch */
 362 +       .rxq            = 4,
 363 +       .txreadyq       = 21,
 364 +};
 365 +
 366 +static struct platform_device mi424wr_npe_devices[] = {
 367 +       {
 368 +               .name                   = "ixp4xx_eth",
 369 +               .id                     = IXP4XX_ETH_NPEC,
 370 +               .dev.platform_data      = &mi424wr_npec_data,
 371 +       }, {
 372 +               .name                   = "ixp4xx_eth",
 373 +               .id                     = IXP4XX_ETH_NPEB,
 374 +               .dev.platform_data      = &mi424wr_npeb_data,
 375 +       }
 376 +};
 377 +
 378 +static struct platform_device *mi424wr_devices[] __initdata = {
 379 +       &mi424wr_uart_device,
 380 +       &mi424wr_flash,
 381 +       &mi424wr_gpio_leds,
 382 +       &mi424wr_latch_leds,
 383 +       &mi424wr_spi_bus,
 384 +       &mi424wr_npe_devices[0],
 385 +       &mi424wr_npe_devices[1],
 386 +};
 387 +
 388 +static void __init mi424wr_init(void)
 389 +{
 390 +       ixp4xx_sys_init();
 391 +
 392 +       mi424wr_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 393 +       mi424wr_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
 394 +
 395 +       *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
 396 +       *IXP4XX_EXP_CS1 = MI424WR_CS1_CONFIG;
 397 +
 398 +       /* configure button as input
 399 +        */
 400 +       gpio_line_config(MI424WR_BUTTON_GPIO, IXP4XX_GPIO_IN);
 401 +
 402 +       /* Initialize LEDs and enables PCI bus.
 403 +        */
 404 +       iobase = ioremap_nocache(IXP4XX_EXP_BUS_BASE(1), 0x1000);
 405 +       __raw_writew(latch_value, iobase);
 406 +
 407 +       platform_add_devices(mi424wr_devices, ARRAY_SIZE(mi424wr_devices));
 408 +}
 409 +
 410 +
 411 +MACHINE_START(MI424WR, "Actiontec MI424WR")
 412 +       /* Maintainer: Jose Vasconcellos */
 413 +       .phys_io        = IXP4XX_UART2_BASE_PHYS,
 414 +       .io_pg_offst    = ((IXP4XX_UART2_BASE_VIRT) >> 18) & 0xfffc,
 415 +       .map_io         = ixp4xx_map_io,
 416 +       .init_irq       = ixp4xx_init_irq,
 417 +       .timer          = &ixp4xx_timer,
 418 +       .boot_params    = 0x0100,
 419 +       .init_machine   = mi424wr_init,
 420 +MACHINE_END
 421 +
 422 --- a/arch/arm/mach-ixp4xx/Makefile
 423 +++ b/arch/arm/mach-ixp4xx/Makefile
 424 @@ -23,6 +23,7 @@ obj-pci-$(CONFIG_MACH_COMPEX)         += ixdp42
 425  obj-pci-$(CONFIG_MACH_WRT300NV2)               += wrt300nv2-pci.o
 426  obj-pci-$(CONFIG_MACH_AP1000)          += ixdp425-pci.o
 427  obj-pci-$(CONFIG_MACH_TW5334)          += tw5334-pci.o
 428 +obj-pci-$(CONFIG_MACH_MI424WR)         += mi424wr-pci.o
 429
 430  obj-y  += common.o
 431
 432 @@ -44,6 +45,7 @@ obj-$(CONFIG_MACH_COMPEX)     += compex-setu
 433  obj-$(CONFIG_MACH_WRT300NV2)   += wrt300nv2-setup.o
 434  obj-$(CONFIG_MACH_AP1000)      += ap1000-setup.o
 435  obj-$(CONFIG_MACH_TW5334)      += tw5334-setup.o
 436 +obj-$(CONFIG_MACH_MI424WR)     += mi424wr-setup.o
 437
 438  obj-$(CONFIG_PCI)              += $(obj-pci-$(CONFIG_PCI)) common-pci.o
 439  obj-$(CONFIG_IXP4XX_QMGR)      += ixp4xx_qmgr.o
 440 --- a/arch/arm/mach-ixp4xx/Kconfig
 441 +++ b/arch/arm/mach-ixp4xx/Kconfig
 442 @@ -229,6 +229,13 @@ config MACH_GTWX5715
 443                 "High Speed" UART is n/c (as far as I can tell)
 444                 20 Pin ARM/Xscale JTAG interface on J2
 445
 446 +config MACH_MI424WR
 447 +       bool "Actiontec MI424WR"
 448 +       depends on ARCH_IXP4XX
 449 +       select PCI
 450 +       help
 451 +               Add support for the Actiontec MI424-WR.
 452 +
 453  comment "IXP4xx Options"
 454
 455  config DMABOUNCE
 456 --- a/arch/arm/configs/ixp4xx_defconfig
 457 +++ b/arch/arm/configs/ixp4xx_defconfig
 458 @@ -172,6 +172,7 @@ CONFIG_MACH_FSG=y
 459  CONFIG_CPU_IXP46X=y
 460  CONFIG_CPU_IXP43X=y
 461  CONFIG_MACH_GTWX5715=y
 462 +CONFIG_MACH_MI424WR=y
 463
 464  #
 465  # IXP4xx Options