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

   1 /*
   2  *  $Id$
   3  *
   4  *  Mikrotik RouterBOARD 1xx series
   5  *
   6  *  Copyright (C) 2007 OpenWrt.org
   7  *  Copyright (C) 2007 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
  17  *  modify it under the terms of the GNU General Public License
  18  *  as published by the Free Software Foundation; either version 2
  19  *  of the License, or (at your option) any later version.
  20  *
  21  *  This program is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  *  GNU General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU General Public License
  27  *  along with this program; if not, write to the
  28  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  29  *  Boston, MA  02110-1301, USA.
  30  *
  31  */
  32
  33 #include <linux/kernel.h>
  34 #include <linux/init.h>
  35 #include <linux/delay.h>
  36
  37 #include <asm/bootinfo.h>
  38 #include <asm/gpio.h>
  39
  40 #include <adm5120_defs.h>
  41 #include <adm5120_irq.h>
  42 #include <adm5120_nand.h>
  43 #include <adm5120_board.h>
  44 #include <adm5120_platform.h>
  45 #include <adm5120_cf.h>
  46
  47 #define RB1XX_NAND_CHIP_DELAY   25
  48
  49 #define RB150_NAND_BASE         0x1FC80000
  50 #define RB150_NAND_SIZE         1
  51
  52 #define RB150_GPIO_NAND_READY   ADM5120_GPIO_PIN0
  53 #define RB150_GPIO_NAND_NCE     ADM5120_GPIO_PIN1
  54 #define RB150_GPIO_NAND_CLE     ADM5120_GPIO_P2L2
  55 #define RB150_GPIO_NAND_ALE     ADM5120_GPIO_P3L2
  56
  57 #define RB150_NAND_DELAY        100
  58
  59 #define RB150_NAND_WRITE(v) \
  60         writeb((v), (void __iomem *)KSEG1ADDR(RB150_NAND_BASE))
  61
  62 /*--------------------------------------------------------------------------*/
  63
  64 static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
  65         PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
  66         PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
  67         PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
  68 };
  69
  70 static struct mtd_partition rb1xx_nor_parts[] = {
  71         {
  72                 .name   = "booter",
  73                 .offset = 0,
  74                 .size   = 64*1024,
  75                 .mask_flags = MTD_WRITEABLE,
  76         } , {
  77                 .name   = "firmware",
  78                 .offset = MTDPART_OFS_APPEND,
  79                 .size   = MTDPART_SIZ_FULL,
  80         }
  81 };
  82
  83 static struct mtd_partition rb1xx_nand_parts[] = {
  84         {
  85                 .name   = "kernel",
  86                 .offset = 0,
  87                 .size   = 4 * 1024 * 1024,
  88         } , {
  89                 .name   = "rootfs",
  90                 .offset = MTDPART_OFS_NXTBLK,
  91                 .size   = MTDPART_SIZ_FULL
  92         }
  93 };
  94
  95 static struct platform_device *rb1xx_devices[] __initdata = {
  96         &adm5120_flash0_device,
  97         &adm5120_nand_device,
  98 };
  99
 100 /*
 101  * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
 102  * will not be able to find the kernel that we load.  So set the oobinfo
 103  * when creating the partitions
 104  */
 105 static struct nand_ecclayout rb1xx_nand_ecclayout = {
 106         .eccbytes       = 6,
 107         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 108         .oobavail       = 9,
 109         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 110 };
 111
 112 static struct resource rb150_nand_resource[] = {
 113         [0] = {
 114                 .start  = RB150_NAND_BASE,
 115                 .end    = RB150_NAND_BASE + RB150_NAND_SIZE-1,
 116                 .flags  = IORESOURCE_MEM,
 117         },
 118 };
 119
 120 #if 0
 121 /*
 122  * RB1xx boards have bad network performance with the default VLAN matrixes.
 123  * Disable it while the ethernet driver gets fixed.
 124  */
 125 static unsigned char rb11x_vlans[6] __initdata = {
 126         /* FIXME: untested */
 127         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 128 };
 129
 130 static unsigned char rb133_vlans[6] __initdata = {
 131         /* FIXME: untested */
 132         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 133 };
 134
 135 static unsigned char rb133c_vlans[6] __initdata = {
 136         /* FIXME: untested */
 137         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 138 };
 139
 140 static unsigned char rb15x_vlans[6] __initdata = {
 141         /* FIXME: untested */
 142         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 143 };
 144
 145 static unsigned char rb192_vlans[6] __initdata = {
 146         /* FIXME: untested */
 147         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 148 };
 149 #else
 150 static unsigned char rb_vlans[6] __initdata = {
 151         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 152 };
 153 #define rb11x_vlans     rb_vlans
 154 #define rb133_vlans     rb_vlans
 155 #define rb133c_vlans    rb_vlans
 156 #define rb15x_vlans     rb_vlans
 157 #define rb192_vlans     rb_vlans
 158 #endif
 159
 160 /*--------------------------------------------------------------------------*/
 161
 162 static int rb150_nand_ready(struct mtd_info *mtd)
 163 {
 164         return gpio_get_value(RB150_GPIO_NAND_READY);
 165 }
 166
 167 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 168                 unsigned int ctrl)
 169 {
 170         if (ctrl & NAND_CTRL_CHANGE) {
 171                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 172                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 173                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 174         }
 175
 176         udelay(RB150_NAND_DELAY);
 177
 178         if (cmd != NAND_CMD_NONE)
 179                 RB150_NAND_WRITE(cmd);
 180 }
 181
 182 /*--------------------------------------------------------------------------*/
 183 static struct resource cf_slot0_res[] = {
 184         {
 185                 .name = "cf_membase",
 186                 .start = ADM5120_EXTIO0_BASE,
 187                 .end = ADM5120_EXTIO0_BASE + ADM5120_MPMC_SIZE-1 ,
 188                 .flags = IORESOURCE_MEM
 189         }, {
 190                 .name = "cf_irq",
 191                 .start = ADM5120_IRQ_GPIO4, /* 5 */
 192                 .end = ADM5120_IRQ_GPIO4,
 193                 .flags = IORESOURCE_IRQ
 194         }
 195 };
 196
 197 static struct cf_device cf_slot0_data = {
 198         .gpio_pin = 4
 199 };
 200
 201 static struct platform_device cf_slot0 = {
 202         .id = 0,
 203         .name = "rb153-cf",
 204         .dev.platform_data = &cf_slot0_data,
 205         .resource = cf_slot0_res,
 206         .num_resources = ARRAY_SIZE(cf_slot0_res),
 207 };
 208
 209 static struct platform_device *rb153_devices[] __initdata = {
 210         &adm5120_flash0_device,
 211         &adm5120_nand_device,
 212         &cf_slot0,
 213 };
 214
 215 static void __init rb1xx_mac_setup(void)
 216 {
 217         /* TODO */
 218 }
 219
 220 static void __init rb1xx_flash_setup(void)
 221 {
 222         /* setup data for flash0 device */
 223         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 224         adm5120_flash0_data.parts = rb1xx_nor_parts;
 225
 226         /* setup data for NAND device */
 227         adm5120_nand_data.chip.nr_chips = 1;
 228         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 229         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 230         adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
 231         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 232         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 233 }
 234
 235 static void __init rb1xx_setup(void)
 236 {
 237         /* enable NAND flash interface */
 238         adm5120_nand_enable();
 239
 240         /* initialize NAND chip */
 241         adm5120_nand_set_spn(1);
 242         adm5120_nand_set_wpn(0);
 243
 244         rb1xx_flash_setup();
 245         rb1xx_mac_setup();
 246 }
 247
 248 static void __init rb150_setup(void)
 249 {
 250         /* setup GPIO pins for NAND flash chip */
 251         gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
 252         gpio_direction_input(RB150_GPIO_NAND_READY);
 253         gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
 254         gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
 255         gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
 256         gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
 257         gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
 258         gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
 259
 260         adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
 261         adm5120_nand_device.resource = rb150_nand_resource;
 262         adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
 263         adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
 264
 265         adm5120_flash0_data.window_size = 512*1024;
 266
 267         rb1xx_flash_setup();
 268         rb1xx_mac_setup();
 269 }
 270
 271 /*--------------------------------------------------------------------------*/
 272
 273 static struct adm5120_board rb111_board __initdata = {
 274         .mach_type      = MACH_ADM5120_RB_111,
 275         .name           = "Mikrotik RouterBOARD 111",
 276         .board_setup    = rb1xx_setup,
 277         .eth_num_ports  = 1,
 278         .eth_vlans      = rb11x_vlans,
 279         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 280         .devices        = rb1xx_devices,
 281         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 282         .pci_irq_map    = rb1xx_pci_irqs,
 283 };
 284
 285 static struct adm5120_board rb112_board __initdata = {
 286         .mach_type      = MACH_ADM5120_RB_112,
 287         .name           = "Mikrotik RouterBOARD 112",
 288         .board_setup    = rb1xx_setup,
 289         .eth_num_ports  = 1,
 290         .eth_vlans      = rb11x_vlans,
 291         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 292         .devices        = rb1xx_devices,
 293         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 294         .pci_irq_map    = rb1xx_pci_irqs,
 295 };
 296
 297 static struct adm5120_board rb133_board __initdata = {
 298         .mach_type      = MACH_ADM5120_RB_133,
 299         .name           = "Mikrotik RouterBOARD 133",
 300         .board_setup    = rb1xx_setup,
 301         .eth_num_ports  = 3,
 302         .eth_vlans      = rb133_vlans,
 303         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 304         .devices        = rb1xx_devices,
 305         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 306         .pci_irq_map    = rb1xx_pci_irqs,
 307 };
 308
 309 static struct adm5120_board rb133c_board __initdata = {
 310         .mach_type      = MACH_ADM5120_RB_133C,
 311         .name           = "Mikrotik RouterBOARD 133C",
 312         .board_setup    = rb1xx_setup,
 313         .eth_num_ports  = 1,
 314         .eth_vlans      = rb133c_vlans,
 315         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 316         .devices        = rb1xx_devices,
 317         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 318         .pci_irq_map    = rb1xx_pci_irqs,
 319 };
 320
 321 static struct adm5120_board rb150_board __initdata = {
 322         .mach_type      = MACH_ADM5120_RB_150,
 323         .name           = "Mikrotik RouterBOARD 150",
 324         .board_setup    = rb150_setup,
 325         .eth_num_ports  = 5,
 326         .eth_vlans      = rb15x_vlans,
 327         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 328         .devices        = rb1xx_devices,
 329 };
 330
 331 static struct adm5120_board rb153_board __initdata = {
 332         .mach_type      = MACH_ADM5120_RB_153,
 333         .name           = "Mikrotik RouterBOARD 153",
 334         .board_setup    = rb1xx_setup,
 335         .eth_num_ports  = 5,
 336         .eth_vlans      = rb15x_vlans,
 337         .num_devices    = ARRAY_SIZE(rb153_devices),
 338         .devices        = rb153_devices,
 339         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 340         .pci_irq_map    = rb1xx_pci_irqs,
 341 };
 342
 343 static struct adm5120_board rb192_board __initdata = {
 344         .mach_type      = MACH_ADM5120_RB_192,
 345         .name           = "Mikrotik RouterBOARD 192",
 346         .board_setup    = rb1xx_setup,
 347         .eth_num_ports  = 5,
 348         .eth_vlans      = rb192_vlans,
 349         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 350         .devices        = rb1xx_devices,
 351         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 352         .pci_irq_map    = rb1xx_pci_irqs,
 353 };
 354
 355 static int __init register_boards(void)
 356 {
 357         adm5120_board_register(&rb111_board);
 358         adm5120_board_register(&rb112_board);
 359         adm5120_board_register(&rb133_board);
 360         adm5120_board_register(&rb133c_board);
 361         adm5120_board_register(&rb150_board);
 362         adm5120_board_register(&rb153_board);
 363         adm5120_board_register(&rb192_board);
 364         return 0;
 365 }
 366
 367 pure_initcall(register_boards);