target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c

   1 /*
   2  *  $Id$
   3  *
   4  *  Mikrotik RouterBOARD 1xx series
   5  *
   6  *  Copyright (C) 2007-2008 OpenWrt.org
   7  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg at openwrt.org>
   8  *
   9  *  NAND initialization code was based on a driver for Linux 2.6.19+ which
  10  *  was derived from the driver for Linux 2.4.xx published by Mikrotik for
  11  *  their RouterBoard 1xx and 5xx series boards.
  12  *    Copyright (C) 2007 David Goodenough <david.goodenough@linkchoose.co.uk>
  13  *    Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
  14  *    The original Mikrotik code seems not to have a license.
  15  *
  16  *  This program is free software; you can redistribute it and/or modify it
  17  *  under the terms of the GNU General Public License version 2 as published
  18  *  by the Free Software Foundation.
  19  *
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/delay.h>
  25
  26 #include <asm/bootinfo.h>
  27 #include <asm/gpio.h>
  28
  29 #include <adm5120_defs.h>
  30 #include <adm5120_irq.h>
  31 #include <adm5120_nand.h>
  32 #include <adm5120_board.h>
  33 #include <adm5120_platform.h>
  34 #include <adm5120_info.h>
  35
  36 #include <prom/routerboot.h>
  37
  38 #define RB1XX_NAND_CHIP_DELAY   25
  39
  40 #define RB150_NAND_BASE         0x1FC80000
  41 #define RB150_NAND_SIZE         1
  42
  43 #define RB150_GPIO_NAND_READY   ADM5120_GPIO_PIN0
  44 #define RB150_GPIO_NAND_NCE     ADM5120_GPIO_PIN1
  45 #define RB150_GPIO_NAND_CLE     ADM5120_GPIO_P2L2
  46 #define RB150_GPIO_NAND_ALE     ADM5120_GPIO_P3L2
  47
  48 #define RB150_NAND_DELAY        100
  49
  50 #define RB150_NAND_WRITE(v) \
  51         writeb((v), (void __iomem *)KSEG1ADDR(RB150_NAND_BASE))
  52
  53 /*--------------------------------------------------------------------------*/
  54
  55 static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
  56         PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
  57         PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
  58         PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
  59 };
  60
  61 static struct mtd_partition rb1xx_nor_parts[] = {
  62         {
  63                 .name   = "booter",
  64                 .offset = 0,
  65                 .size   = 64*1024,
  66                 .mask_flags = MTD_WRITEABLE,
  67         } , {
  68                 .name   = "firmware",
  69                 .offset = MTDPART_OFS_APPEND,
  70                 .size   = MTDPART_SIZ_FULL,
  71         }
  72 };
  73
  74 static struct mtd_partition rb1xx_nand_parts[] = {
  75         {
  76                 .name   = "kernel",
  77                 .offset = 0,
  78                 .size   = 4 * 1024 * 1024,
  79         } , {
  80                 .name   = "rootfs",
  81                 .offset = MTDPART_OFS_NXTBLK,
  82                 .size   = MTDPART_SIZ_FULL
  83         }
  84 };
  85
  86 static struct platform_device *rb1xx_devices[] __initdata = {
  87         &adm5120_flash0_device,
  88         &adm5120_nand_device,
  89         &adm5120_buttons_device,
  90 };
  91
  92 /*
  93  * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
  94  * will not be able to find the kernel that we load.  So set the oobinfo
  95  * when creating the partitions
  96  */
  97 static struct nand_ecclayout rb1xx_nand_ecclayout = {
  98         .eccbytes       = 6,
  99         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 100         .oobavail       = 9,
 101         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 102 };
 103
 104 static struct resource rb150_nand_resource[] = {
 105         [0] = {
 106                 .start  = RB150_NAND_BASE,
 107                 .end    = RB150_NAND_BASE + RB150_NAND_SIZE-1,
 108                 .flags  = IORESOURCE_MEM,
 109         },
 110 };
 111
 112 static struct resource rb153_cf_resources[] = {
 113         {
 114                 .name   = "cf_membase",
 115                 .start  = ADM5120_EXTIO1_BASE,
 116                 .end    = ADM5120_EXTIO1_BASE + ADM5120_EXTIO1_SIZE-1 ,
 117                 .flags  = IORESOURCE_MEM
 118         }, {
 119                 .name   = "cf_irq",
 120                 .start  = ADM5120_IRQ_GPIO4,
 121                 .end    = ADM5120_IRQ_GPIO4,
 122                 .flags  = IORESOURCE_IRQ
 123         }
 124 };
 125
 126 static struct platform_device rb153_cf_device = {
 127         .name           = "pata-rb153-cf",
 128         .id             = -1,
 129         .resource       = rb153_cf_resources,
 130         .num_resources  = ARRAY_SIZE(rb153_cf_resources),
 131 };
 132
 133 static struct platform_device *rb153_devices[] __initdata = {
 134         &adm5120_flash0_device,
 135         &adm5120_nand_device,
 136         &adm5120_buttons_device,
 137         &rb153_cf_device,
 138 };
 139
 140 #if 0
 141 /*
 142  * RB1xx boards have bad network performance with the default VLAN matrixes.
 143  * Disable it while the ethernet driver gets fixed.
 144  */
 145 static unsigned char rb11x_vlans[6] __initdata = {
 146         /* FIXME: untested */
 147         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 148 };
 149
 150 static unsigned char rb133_vlans[6] __initdata = {
 151         /* FIXME: untested */
 152         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 153 };
 154
 155 static unsigned char rb133c_vlans[6] __initdata = {
 156         /* FIXME: untested */
 157         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 158 };
 159
 160 static unsigned char rb15x_vlans[6] __initdata = {
 161         /* FIXME: untested */
 162         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 163 };
 164
 165 static unsigned char rb192_vlans[6] __initdata = {
 166         /* FIXME: untested */
 167         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 168 };
 169 #else
 170 static unsigned char rb_vlans[6] __initdata = {
 171         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 172 };
 173 #define rb11x_vlans     rb_vlans
 174 #define rb133_vlans     rb_vlans
 175 #define rb133c_vlans    rb_vlans
 176 #define rb15x_vlans     rb_vlans
 177 #define rb192_vlans     rb_vlans
 178 #endif
 179
 180 /*--------------------------------------------------------------------------*/
 181
 182 static int rb150_nand_ready(struct mtd_info *mtd)
 183 {
 184         return gpio_get_value(RB150_GPIO_NAND_READY);
 185 }
 186
 187 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 188                 unsigned int ctrl)
 189 {
 190         if (ctrl & NAND_CTRL_CHANGE) {
 191                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 192                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 193                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 194         }
 195
 196         udelay(RB150_NAND_DELAY);
 197
 198         if (cmd != NAND_CMD_NONE)
 199                 RB150_NAND_WRITE(cmd);
 200 }
 201
 202 /*--------------------------------------------------------------------------*/
 203
 204 static void __init rb1xx_mac_setup(void)
 205 {
 206         int i, j;
 207
 208         if (!rb_hs.mac_base)
 209                 return;
 210
 211         for (i = 0; i < 6; i++) {
 212                 for (j = 0; j < 5; j++)
 213                         adm5120_eth_macs[i][j] = rb_hs.mac_base[j];
 214                 adm5120_eth_macs[i][5] = rb_hs.mac_base[5]+i;
 215         }
 216 }
 217
 218 static int rb1xx_nand_fixup(struct mtd_info *mtd)
 219 {
 220         struct nand_chip *chip = mtd->priv;
 221
 222         if (mtd->writesize == 512)
 223                 chip->ecc.layout = &rb1xx_nand_ecclayout;
 224
 225         return 0;
 226 }
 227
 228 static void __init rb1xx_flash_setup(void)
 229 {
 230         /* setup data for flash0 device */
 231         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 232         adm5120_flash0_data.parts = rb1xx_nor_parts;
 233
 234         /* setup data for NAND device */
 235         adm5120_nand_data.chip.nr_chips = 1;
 236         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 237         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 238         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 239         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 240
 241         adm5120_nand_data.chip.chip_fixup = &rb1xx_nand_fixup;
 242 }
 243
 244 static void __init rb1xx_setup(void)
 245 {
 246         /* enable NAND flash interface */
 247         adm5120_nand_enable();
 248
 249         /* initialize NAND chip */
 250         adm5120_nand_set_spn(1);
 251         adm5120_nand_set_wpn(0);
 252
 253         adm5120_buttons_data.nbuttons = 1;
 254         adm5120_buttons[0].desc = "reset button";
 255         adm5120_buttons[0].gpio = ADM5120_GPIO_PIN7;
 256
 257         rb1xx_flash_setup();
 258         rb1xx_mac_setup();
 259 }
 260
 261 static void __init rb150_setup(void)
 262 {
 263         /* setup GPIO pins for NAND flash chip */
 264         gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
 265         gpio_direction_input(RB150_GPIO_NAND_READY);
 266         gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
 267         gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
 268         gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
 269         gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
 270         gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
 271         gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
 272
 273         adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
 274         adm5120_nand_device.resource = rb150_nand_resource;
 275         adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
 276         adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
 277
 278         adm5120_buttons_data.nbuttons = 1;
 279         adm5120_buttons[0].desc = "reset button";
 280         adm5120_buttons[0].gpio = ADM5120_GPIO_PIN1; /* FIXME: valid? */
 281
 282         adm5120_flash0_data.window_size = 512*1024;
 283
 284         rb1xx_flash_setup();
 285         rb1xx_mac_setup();
 286 }
 287
 288 static void __init rb153_setup(void)
 289 {
 290         /* enable CSX1:INTX1 on GPIO[3:4] for the CF slot */
 291         adm5120_gpio_csx1_enable();
 292         /* enable the wait state pin GPIO[0] for external I/O control */
 293         adm5120_gpio_ew_enable();
 294
 295         rb1xx_setup();
 296 }
 297
 298 /*--------------------------------------------------------------------------*/
 299
 300 ADM5120_BOARD_START(RB_111, "Mikrotik RouterBOARD 111")
 301         .board_setup    = rb1xx_setup,
 302         .eth_num_ports  = 1,
 303         .eth_vlans      = rb11x_vlans,
 304         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 305         .devices        = rb1xx_devices,
 306         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 307         .pci_irq_map    = rb1xx_pci_irqs,
 308 ADM5120_BOARD_END
 309
 310 ADM5120_BOARD_START(RB_112, "Mikrotik RouterBOARD 112")
 311         .board_setup    = rb1xx_setup,
 312         .eth_num_ports  = 1,
 313         .eth_vlans      = rb11x_vlans,
 314         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 315         .devices        = rb1xx_devices,
 316         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 317         .pci_irq_map    = rb1xx_pci_irqs,
 318 ADM5120_BOARD_END
 319
 320 ADM5120_BOARD_START(RB_133, "Mikrotik RouterBOARD 133")
 321         .board_setup    = rb1xx_setup,
 322         .eth_num_ports  = 3,
 323         .eth_vlans      = rb133_vlans,
 324         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 325         .devices        = rb1xx_devices,
 326         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 327         .pci_irq_map    = rb1xx_pci_irqs,
 328 ADM5120_BOARD_END
 329
 330 ADM5120_BOARD_START(RB_133C, "Mikrotik RouterBOARD 133C")
 331         .board_setup    = rb1xx_setup,
 332         .eth_num_ports  = 1,
 333         .eth_vlans      = rb133c_vlans,
 334         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 335         .devices        = rb1xx_devices,
 336         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 337         .pci_irq_map    = rb1xx_pci_irqs,
 338 ADM5120_BOARD_END
 339
 340 ADM5120_BOARD_START(RB_150, "Mikrotik RouterBOARD 150")
 341         .board_setup    = rb150_setup,
 342         .eth_num_ports  = 5,
 343         .eth_vlans      = rb15x_vlans,
 344         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 345         .devices        = rb1xx_devices,
 346 ADM5120_BOARD_END
 347
 348 ADM5120_BOARD_START(RB_153, "Mikrotik RouterBOARD 153")
 349         .board_setup    = rb153_setup,
 350         .eth_num_ports  = 5,
 351         .eth_vlans      = rb15x_vlans,
 352         .num_devices    = ARRAY_SIZE(rb153_devices),
 353         .devices        = rb153_devices,
 354         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 355         .pci_irq_map    = rb1xx_pci_irqs,
 356 ADM5120_BOARD_END
 357
 358 ADM5120_BOARD_START(RB_192, "Mikrotik RouterBOARD 192")
 359         .board_setup    = rb1xx_setup,
 360         .eth_num_ports  = 5,
 361         .eth_vlans      = rb192_vlans,
 362         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 363         .devices        = rb1xx_devices,
 364         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 365         .pci_irq_map    = rb1xx_pci_irqs,
 366 ADM5120_BOARD_END