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 static struct resource rb153_cf_resources[] = {
 121         {
 122                 .name   = "cf_membase",
 123                 .start  = ADM5120_EXTIO0_BASE,
 124                 .end    = ADM5120_EXTIO0_BASE + ADM5120_MPMC_SIZE-1 ,
 125                 .flags  = IORESOURCE_MEM
 126         }, {
 127                 .name   = "cf_irq",
 128                 .start  = ADM5120_IRQ_GPIO4,
 129                 .end    = ADM5120_IRQ_GPIO4,
 130                 .flags  = IORESOURCE_IRQ
 131         }
 132 };
 133
 134 static struct cf_device rb153_cf_data = {
 135         .gpio_pin = ADM5120_GPIO_PIN4
 136 };
 137
 138 static struct platform_device rb153_cf_device = {
 139         .name           = "rb153-cf",
 140         .id             = -1,
 141         .resource       = rb153_cf_resources,
 142         .num_resources  = ARRAY_SIZE(rb153_cf_resources),
 143         .dev.platform_data = &rb153_cf_data,
 144 };
 145
 146 static struct platform_device *rb153_devices[] __initdata = {
 147         &adm5120_flash0_device,
 148         &adm5120_nand_device,
 149         &rb153_cf_device,
 150 };
 151
 152 #if 0
 153 /*
 154  * RB1xx boards have bad network performance with the default VLAN matrixes.
 155  * Disable it while the ethernet driver gets fixed.
 156  */
 157 static unsigned char rb11x_vlans[6] __initdata = {
 158         /* FIXME: untested */
 159         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 160 };
 161
 162 static unsigned char rb133_vlans[6] __initdata = {
 163         /* FIXME: untested */
 164         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 165 };
 166
 167 static unsigned char rb133c_vlans[6] __initdata = {
 168         /* FIXME: untested */
 169         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 170 };
 171
 172 static unsigned char rb15x_vlans[6] __initdata = {
 173         /* FIXME: untested */
 174         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 175 };
 176
 177 static unsigned char rb192_vlans[6] __initdata = {
 178         /* FIXME: untested */
 179         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 180 };
 181 #else
 182 static unsigned char rb_vlans[6] __initdata = {
 183         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 184 };
 185 #define rb11x_vlans     rb_vlans
 186 #define rb133_vlans     rb_vlans
 187 #define rb133c_vlans    rb_vlans
 188 #define rb15x_vlans     rb_vlans
 189 #define rb192_vlans     rb_vlans
 190 #endif
 191
 192 /*--------------------------------------------------------------------------*/
 193
 194 static int rb150_nand_ready(struct mtd_info *mtd)
 195 {
 196         return gpio_get_value(RB150_GPIO_NAND_READY);
 197 }
 198
 199 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 200                 unsigned int ctrl)
 201 {
 202         if (ctrl & NAND_CTRL_CHANGE) {
 203                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 204                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 205                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 206         }
 207
 208         udelay(RB150_NAND_DELAY);
 209
 210         if (cmd != NAND_CMD_NONE)
 211                 RB150_NAND_WRITE(cmd);
 212 }
 213
 214 /*--------------------------------------------------------------------------*/
 215
 216 static void __init rb1xx_mac_setup(void)
 217 {
 218         /* TODO */
 219 }
 220
 221 static void __init rb1xx_flash_setup(void)
 222 {
 223         /* setup data for flash0 device */
 224         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 225         adm5120_flash0_data.parts = rb1xx_nor_parts;
 226
 227         /* setup data for NAND device */
 228         adm5120_nand_data.chip.nr_chips = 1;
 229         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 230         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 231         adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
 232         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 233         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 234 }
 235
 236 static void __init rb1xx_setup(void)
 237 {
 238         /* enable NAND flash interface */
 239         adm5120_nand_enable();
 240
 241         /* initialize NAND chip */
 242         adm5120_nand_set_spn(1);
 243         adm5120_nand_set_wpn(0);
 244
 245         rb1xx_flash_setup();
 246         rb1xx_mac_setup();
 247 }
 248
 249 static void __init rb150_setup(void)
 250 {
 251         /* setup GPIO pins for NAND flash chip */
 252         gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
 253         gpio_direction_input(RB150_GPIO_NAND_READY);
 254         gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
 255         gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
 256         gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
 257         gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
 258         gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
 259         gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
 260
 261         adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
 262         adm5120_nand_device.resource = rb150_nand_resource;
 263         adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
 264         adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
 265
 266         adm5120_flash0_data.window_size = 512*1024;
 267
 268         rb1xx_flash_setup();
 269         rb1xx_mac_setup();
 270 }
 271
 272 /*--------------------------------------------------------------------------*/
 273
 274 ADM5120_BOARD_START(RB_111, "Mikrotik RouterBOARD 111")
 275         .board_setup    = rb1xx_setup,
 276         .eth_num_ports  = 1,
 277         .eth_vlans      = rb11x_vlans,
 278         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 279         .devices        = rb1xx_devices,
 280         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 281         .pci_irq_map    = rb1xx_pci_irqs,
 282 ADM5120_BOARD_END
 283
 284 ADM5120_BOARD_START(RB_112, "Mikrotik RouterBOARD 112")
 285         .board_setup    = rb1xx_setup,
 286         .eth_num_ports  = 1,
 287         .eth_vlans      = rb11x_vlans,
 288         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 289         .devices        = rb1xx_devices,
 290         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 291         .pci_irq_map    = rb1xx_pci_irqs,
 292 ADM5120_BOARD_END
 293
 294 ADM5120_BOARD_START(RB_133, "Mikrotik RouterBOARD 133")
 295         .board_setup    = rb1xx_setup,
 296         .eth_num_ports  = 3,
 297         .eth_vlans      = rb133_vlans,
 298         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 299         .devices        = rb1xx_devices,
 300         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 301         .pci_irq_map    = rb1xx_pci_irqs,
 302 ADM5120_BOARD_END
 303
 304 ADM5120_BOARD_START(RB_133C, "Mikrotik RouterBOARD 133C")
 305         .board_setup    = rb1xx_setup,
 306         .eth_num_ports  = 1,
 307         .eth_vlans      = rb133c_vlans,
 308         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 309         .devices        = rb1xx_devices,
 310         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 311         .pci_irq_map    = rb1xx_pci_irqs,
 312 ADM5120_BOARD_END
 313
 314 ADM5120_BOARD_START(RB_150, "Mikrotik RouterBOARD 150")
 315         .board_setup    = rb150_setup,
 316         .eth_num_ports  = 5,
 317         .eth_vlans      = rb15x_vlans,
 318         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 319         .devices        = rb1xx_devices,
 320 ADM5120_BOARD_END
 321
 322 ADM5120_BOARD_START(RB_153, "Mikrotik RouterBOARD 153")
 323         .board_setup    = rb1xx_setup,
 324         .eth_num_ports  = 5,
 325         .eth_vlans      = rb15x_vlans,
 326         .num_devices    = ARRAY_SIZE(rb153_devices),
 327         .devices        = rb153_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_192, "Mikrotik RouterBOARD 192")
 333         .board_setup    = rb1xx_setup,
 334         .eth_num_ports  = 5,
 335         .eth_vlans      = rb192_vlans,
 336         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 337         .devices        = rb1xx_devices,
 338         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 339         .pci_irq_map    = rb1xx_pci_irqs,
 340 ADM5120_BOARD_END