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 #define RB153_GPIO_CF_RDY       ADM5120_GPIO_P1L1
  63 #define RB153_GPIO_CF_WT        ADM5120_GPIO_P0L0
  64
  65 /*--------------------------------------------------------------------------*/
  66
  67 static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
  68         PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
  69         PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
  70         PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
  71 };
  72
  73 static struct mtd_partition rb1xx_nor_parts[] = {
  74         {
  75                 .name   = "booter",
  76                 .offset = 0,
  77                 .size   = 64*1024,
  78                 .mask_flags = MTD_WRITEABLE,
  79         } , {
  80                 .name   = "firmware",
  81                 .offset = MTDPART_OFS_APPEND,
  82                 .size   = MTDPART_SIZ_FULL,
  83         }
  84 };
  85
  86 static struct mtd_partition rb1xx_nand_parts[] = {
  87         {
  88                 .name   = "kernel",
  89                 .offset = 0,
  90                 .size   = 4 * 1024 * 1024,
  91         } , {
  92                 .name   = "rootfs",
  93                 .offset = MTDPART_OFS_NXTBLK,
  94                 .size   = MTDPART_SIZ_FULL
  95         }
  96 };
  97
  98 static struct platform_device *rb1xx_devices[] __initdata = {
  99         &adm5120_flash0_device,
 100         &adm5120_nand_device,
 101 };
 102
 103 /*
 104  * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
 105  * will not be able to find the kernel that we load.  So set the oobinfo
 106  * when creating the partitions
 107  */
 108 static struct nand_ecclayout rb1xx_nand_ecclayout = {
 109         .eccbytes       = 6,
 110         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 111         .oobavail       = 9,
 112         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 113 };
 114
 115 static struct resource rb150_nand_resource[] = {
 116         [0] = {
 117                 .start  = RB150_NAND_BASE,
 118                 .end    = RB150_NAND_BASE + RB150_NAND_SIZE-1,
 119                 .flags  = IORESOURCE_MEM,
 120         },
 121 };
 122
 123 static struct resource rb153_cf_resources[] = {
 124         {
 125                 .name   = "cf_membase",
 126                 .start  = ADM5120_EXTIO0_BASE,
 127                 .end    = ADM5120_EXTIO0_BASE + ADM5120_MPMC_SIZE-1 ,
 128                 .flags  = IORESOURCE_MEM
 129         }, {
 130                 .name   = "cf_irq",
 131                 .start  = ADM5120_IRQ_GPIO4,
 132                 .end    = ADM5120_IRQ_GPIO4,
 133                 .flags  = IORESOURCE_IRQ
 134         }
 135 };
 136
 137 static struct cf_device rb153_cf_data = {
 138         .gpio_pin = ADM5120_GPIO_PIN4
 139 };
 140
 141 static struct platform_device rb153_cf_device = {
 142         .name           = "rb153-cf",
 143         .id             = -1,
 144         .resource       = rb153_cf_resources,
 145         .num_resources  = ARRAY_SIZE(rb153_cf_resources),
 146         .dev.platform_data = &rb153_cf_data,
 147 };
 148
 149 static struct platform_device *rb153_devices[] __initdata = {
 150         &adm5120_flash0_device,
 151         &adm5120_nand_device,
 152         &rb153_cf_device,
 153 };
 154
 155 #if 0
 156 /*
 157  * RB1xx boards have bad network performance with the default VLAN matrixes.
 158  * Disable it while the ethernet driver gets fixed.
 159  */
 160 static unsigned char rb11x_vlans[6] __initdata = {
 161         /* FIXME: untested */
 162         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 163 };
 164
 165 static unsigned char rb133_vlans[6] __initdata = {
 166         /* FIXME: untested */
 167         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 168 };
 169
 170 static unsigned char rb133c_vlans[6] __initdata = {
 171         /* FIXME: untested */
 172         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 173 };
 174
 175 static unsigned char rb15x_vlans[6] __initdata = {
 176         /* FIXME: untested */
 177         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 178 };
 179
 180 static unsigned char rb192_vlans[6] __initdata = {
 181         /* FIXME: untested */
 182         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 183 };
 184 #else
 185 static unsigned char rb_vlans[6] __initdata = {
 186         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 187 };
 188 #define rb11x_vlans     rb_vlans
 189 #define rb133_vlans     rb_vlans
 190 #define rb133c_vlans    rb_vlans
 191 #define rb15x_vlans     rb_vlans
 192 #define rb192_vlans     rb_vlans
 193 #endif
 194
 195 /*--------------------------------------------------------------------------*/
 196
 197 static int rb150_nand_ready(struct mtd_info *mtd)
 198 {
 199         return gpio_get_value(RB150_GPIO_NAND_READY);
 200 }
 201
 202 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 203                 unsigned int ctrl)
 204 {
 205         if (ctrl & NAND_CTRL_CHANGE) {
 206                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 207                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 208                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 209         }
 210
 211         udelay(RB150_NAND_DELAY);
 212
 213         if (cmd != NAND_CMD_NONE)
 214                 RB150_NAND_WRITE(cmd);
 215 }
 216
 217 /*--------------------------------------------------------------------------*/
 218
 219 static void __init rb1xx_mac_setup(void)
 220 {
 221         /* TODO */
 222 }
 223
 224 static void __init rb1xx_flash_setup(void)
 225 {
 226         /* setup data for flash0 device */
 227         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 228         adm5120_flash0_data.parts = rb1xx_nor_parts;
 229
 230         /* setup data for NAND device */
 231         adm5120_nand_data.chip.nr_chips = 1;
 232         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 233         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 234         adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
 235         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 236         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 237 }
 238
 239 static void __init rb153_cf_setup(void)
 240 {
 241         gpio_request(RB153_GPIO_CF_RDY, "cf-ready");
 242         gpio_direction_input(RB153_GPIO_CF_RDY);
 243         gpio_request(RB153_GPIO_CF_WT, "cf-wait");
 244         gpio_direction_output(RB153_GPIO_CF_WT, 1);
 245         gpio_direction_input(RB153_GPIO_CF_WT);
 246 }
 247
 248 static void __init rb1xx_setup(void)
 249 {
 250         /* enable NAND flash interface */
 251         adm5120_nand_enable();
 252
 253         /* initialize NAND chip */
 254         adm5120_nand_set_spn(1);
 255         adm5120_nand_set_wpn(0);
 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_flash0_data.window_size = 512*1024;
 279
 280         rb1xx_flash_setup();
 281         rb1xx_mac_setup();
 282 }
 283
 284 static void __init rb153_setup(void)
 285 {
 286         rb153_cf_setup();
 287         rb1xx_setup();
 288 }
 289
 290 /*--------------------------------------------------------------------------*/
 291
 292 ADM5120_BOARD_START(RB_111, "Mikrotik RouterBOARD 111")
 293         .board_setup    = rb1xx_setup,
 294         .eth_num_ports  = 1,
 295         .eth_vlans      = rb11x_vlans,
 296         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 297         .devices        = rb1xx_devices,
 298         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 299         .pci_irq_map    = rb1xx_pci_irqs,
 300 ADM5120_BOARD_END
 301
 302 ADM5120_BOARD_START(RB_112, "Mikrotik RouterBOARD 112")
 303         .board_setup    = rb1xx_setup,
 304         .eth_num_ports  = 1,
 305         .eth_vlans      = rb11x_vlans,
 306         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 307         .devices        = rb1xx_devices,
 308         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 309         .pci_irq_map    = rb1xx_pci_irqs,
 310 ADM5120_BOARD_END
 311
 312 ADM5120_BOARD_START(RB_133, "Mikrotik RouterBOARD 133")
 313         .board_setup    = rb1xx_setup,
 314         .eth_num_ports  = 3,
 315         .eth_vlans      = rb133_vlans,
 316         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 317         .devices        = rb1xx_devices,
 318         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 319         .pci_irq_map    = rb1xx_pci_irqs,
 320 ADM5120_BOARD_END
 321
 322 ADM5120_BOARD_START(RB_133C, "Mikrotik RouterBOARD 133C")
 323         .board_setup    = rb1xx_setup,
 324         .eth_num_ports  = 1,
 325         .eth_vlans      = rb133c_vlans,
 326         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 327         .devices        = rb1xx_devices,
 328         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 329         .pci_irq_map    = rb1xx_pci_irqs,
 330 ADM5120_BOARD_END
 331
 332 ADM5120_BOARD_START(RB_150, "Mikrotik RouterBOARD 150")
 333         .board_setup    = rb150_setup,
 334         .eth_num_ports  = 5,
 335         .eth_vlans      = rb15x_vlans,
 336         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 337         .devices        = rb1xx_devices,
 338 ADM5120_BOARD_END
 339
 340 ADM5120_BOARD_START(RB_153, "Mikrotik RouterBOARD 153")
 341         .board_setup    = rb153_setup,
 342         .eth_num_ports  = 5,
 343         .eth_vlans      = rb15x_vlans,
 344         .num_devices    = ARRAY_SIZE(rb153_devices),
 345         .devices        = rb153_devices,
 346         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 347         .pci_irq_map    = rb1xx_pci_irqs,
 348 ADM5120_BOARD_END
 349
 350 ADM5120_BOARD_START(RB_192, "Mikrotik RouterBOARD 192")
 351         .board_setup    = rb1xx_setup,
 352         .eth_num_ports  = 5,
 353         .eth_vlans      = rb192_vlans,
 354         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 355         .devices        = rb1xx_devices,
 356         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 357         .pci_irq_map    = rb1xx_pci_irqs,
 358 ADM5120_BOARD_END