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 };
  90
  91 /*
  92  * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
  93  * will not be able to find the kernel that we load.  So set the oobinfo
  94  * when creating the partitions
  95  */
  96 static struct nand_ecclayout rb1xx_nand_ecclayout = {
  97         .eccbytes       = 6,
  98         .eccpos         = { 8, 9, 10, 13, 14, 15 },
  99         .oobavail       = 9,
 100         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 101 };
 102
 103 static struct resource rb150_nand_resource[] = {
 104         [0] = {
 105                 .start  = RB150_NAND_BASE,
 106                 .end    = RB150_NAND_BASE + RB150_NAND_SIZE-1,
 107                 .flags  = IORESOURCE_MEM,
 108         },
 109 };
 110
 111 static struct resource rb153_cf_resources[] = {
 112         {
 113                 .name   = "cf_membase",
 114                 .start  = ADM5120_EXTIO1_BASE,
 115                 .end    = ADM5120_EXTIO1_BASE + ADM5120_EXTIO1_SIZE-1 ,
 116                 .flags  = IORESOURCE_MEM
 117         }, {
 118                 .name   = "cf_irq",
 119                 .start  = ADM5120_IRQ_GPIO4,
 120                 .end    = ADM5120_IRQ_GPIO4,
 121                 .flags  = IORESOURCE_IRQ
 122         }
 123 };
 124
 125 static struct platform_device rb153_cf_device = {
 126         .name           = "pata-rb153-cf",
 127         .id             = -1,
 128         .resource       = rb153_cf_resources,
 129         .num_resources  = ARRAY_SIZE(rb153_cf_resources),
 130 };
 131
 132 static struct platform_device *rb153_devices[] __initdata = {
 133         &adm5120_flash0_device,
 134         &adm5120_nand_device,
 135         &rb153_cf_device,
 136 };
 137
 138 #if 0
 139 /*
 140  * RB1xx boards have bad network performance with the default VLAN matrixes.
 141  * Disable it while the ethernet driver gets fixed.
 142  */
 143 static unsigned char rb11x_vlans[6] __initdata = {
 144         /* FIXME: untested */
 145         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 146 };
 147
 148 static unsigned char rb133_vlans[6] __initdata = {
 149         /* FIXME: untested */
 150         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 151 };
 152
 153 static unsigned char rb133c_vlans[6] __initdata = {
 154         /* FIXME: untested */
 155         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 156 };
 157
 158 static unsigned char rb15x_vlans[6] __initdata = {
 159         /* FIXME: untested */
 160         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 161 };
 162
 163 static unsigned char rb192_vlans[6] __initdata = {
 164         /* FIXME: untested */
 165         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 166 };
 167 #else
 168 static unsigned char rb_vlans[6] __initdata = {
 169         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 170 };
 171 #define rb11x_vlans     rb_vlans
 172 #define rb133_vlans     rb_vlans
 173 #define rb133c_vlans    rb_vlans
 174 #define rb15x_vlans     rb_vlans
 175 #define rb192_vlans     rb_vlans
 176 #endif
 177
 178 /*--------------------------------------------------------------------------*/
 179
 180 static int rb150_nand_ready(struct mtd_info *mtd)
 181 {
 182         return gpio_get_value(RB150_GPIO_NAND_READY);
 183 }
 184
 185 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 186                 unsigned int ctrl)
 187 {
 188         if (ctrl & NAND_CTRL_CHANGE) {
 189                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 190                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 191                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 192         }
 193
 194         udelay(RB150_NAND_DELAY);
 195
 196         if (cmd != NAND_CMD_NONE)
 197                 RB150_NAND_WRITE(cmd);
 198 }
 199
 200 /*--------------------------------------------------------------------------*/
 201
 202 static void __init rb1xx_mac_setup(void)
 203 {
 204         int i, j;
 205
 206         if (!rb_hs.mac_base)
 207                 return;
 208
 209         for (i = 0; i < 6; i++) {
 210                 for (j = 0; j < 5; j++)
 211                         adm5120_eth_macs[i][j] = rb_hs.mac_base[j];
 212                 adm5120_eth_macs[i][5] = rb_hs.mac_base[5]+i;
 213         }
 214 }
 215
 216 static int rb1xx_nand_fixup(struct mtd_info *mtd)
 217 {
 218         struct nand_chip *chip = mtd->priv;
 219
 220         if (mtd->writesize == 512)
 221                 chip->ecc.layout = &rb1xx_nand_ecclayout;
 222
 223         return 0;
 224 }
 225
 226 static void __init rb1xx_flash_setup(void)
 227 {
 228         /* setup data for flash0 device */
 229         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 230         adm5120_flash0_data.parts = rb1xx_nor_parts;
 231
 232         /* setup data for NAND device */
 233         adm5120_nand_data.chip.nr_chips = 1;
 234         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 235         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 236         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 237         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 238
 239         adm5120_nand_data.chip.chip_fixup = &rb1xx_nand_fixup;
 240 }
 241
 242 static void __init rb1xx_setup(void)
 243 {
 244         /* enable NAND flash interface */
 245         adm5120_nand_enable();
 246
 247         /* initialize NAND chip */
 248         adm5120_nand_set_spn(1);
 249         adm5120_nand_set_wpn(0);
 250
 251         adm5120_buttons_data.nbuttons = 1;
 252         adm5120_buttons[0].desc = "reset button";
 253         adm5120_buttons[0].gpio = ADM5120_GPIO_PIN7;
 254
 255         rb1xx_flash_setup();
 256         rb1xx_mac_setup();
 257 }
 258
 259 static void __init rb150_setup(void)
 260 {
 261         /* setup GPIO pins for NAND flash chip */
 262         gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
 263         gpio_direction_input(RB150_GPIO_NAND_READY);
 264         gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
 265         gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
 266         gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
 267         gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
 268         gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
 269         gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
 270
 271         adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
 272         adm5120_nand_device.resource = rb150_nand_resource;
 273         adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
 274         adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
 275
 276         adm5120_buttons_data.nbuttons = 1;
 277         adm5120_buttons[0].desc = "reset button";
 278         adm5120_buttons[0].gpio = ADM5120_GPIO_PIN1;
 279
 280         adm5120_flash0_data.window_size = 512*1024;
 281
 282         rb1xx_flash_setup();
 283         rb1xx_mac_setup();
 284 }
 285
 286 static void __init rb153_setup(void)
 287 {
 288         /* enable CSX1:INTX1 on GPIO[3:4] for the CF slot */
 289         adm5120_gpio_csx1_enable();
 290         /* enable the wait state pin GPIO[0] for external I/O control */
 291         adm5120_gpio_ew_enable();
 292
 293         rb1xx_setup();
 294 }
 295
 296 /*--------------------------------------------------------------------------*/
 297
 298 ADM5120_BOARD_START(RB_111, "Mikrotik RouterBOARD 111")
 299         .board_setup    = rb1xx_setup,
 300         .eth_num_ports  = 1,
 301         .eth_vlans      = rb11x_vlans,
 302         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 303         .devices        = rb1xx_devices,
 304         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 305         .pci_irq_map    = rb1xx_pci_irqs,
 306 ADM5120_BOARD_END
 307
 308 ADM5120_BOARD_START(RB_112, "Mikrotik RouterBOARD 112")
 309         .board_setup    = rb1xx_setup,
 310         .eth_num_ports  = 1,
 311         .eth_vlans      = rb11x_vlans,
 312         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 313         .devices        = rb1xx_devices,
 314         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 315         .pci_irq_map    = rb1xx_pci_irqs,
 316 ADM5120_BOARD_END
 317
 318 ADM5120_BOARD_START(RB_133, "Mikrotik RouterBOARD 133")
 319         .board_setup    = rb1xx_setup,
 320         .eth_num_ports  = 3,
 321         .eth_vlans      = rb133_vlans,
 322         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 323         .devices        = rb1xx_devices,
 324         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 325         .pci_irq_map    = rb1xx_pci_irqs,
 326 ADM5120_BOARD_END
 327
 328 ADM5120_BOARD_START(RB_133C, "Mikrotik RouterBOARD 133C")
 329         .board_setup    = rb1xx_setup,
 330         .eth_num_ports  = 1,
 331         .eth_vlans      = rb133c_vlans,
 332         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 333         .devices        = rb1xx_devices,
 334         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 335         .pci_irq_map    = rb1xx_pci_irqs,
 336 ADM5120_BOARD_END
 337
 338 ADM5120_BOARD_START(RB_150, "Mikrotik RouterBOARD 150")
 339         .board_setup    = rb150_setup,
 340         .eth_num_ports  = 5,
 341         .eth_vlans      = rb15x_vlans,
 342         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 343         .devices        = rb1xx_devices,
 344 ADM5120_BOARD_END
 345
 346 ADM5120_BOARD_START(RB_153, "Mikrotik RouterBOARD 153")
 347         .board_setup    = rb153_setup,
 348         .eth_num_ports  = 5,
 349         .eth_vlans      = rb15x_vlans,
 350         .num_devices    = ARRAY_SIZE(rb153_devices),
 351         .devices        = rb153_devices,
 352         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 353         .pci_irq_map    = rb1xx_pci_irqs,
 354 ADM5120_BOARD_END
 355
 356 ADM5120_BOARD_START(RB_192, "Mikrotik RouterBOARD 192")
 357         .board_setup    = rb1xx_setup,
 358         .eth_num_ports  = 5,
 359         .eth_vlans      = rb192_vlans,
 360         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 361         .devices        = rb1xx_devices,
 362         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 363         .pci_irq_map    = rb1xx_pci_irqs,
 364 ADM5120_BOARD_END