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
  46 #define RB1XX_NAND_CHIP_DELAY   25
  47
  48 #define RB150_NAND_BASE         0x1FC80000
  49 #define RB150_NAND_SIZE         1
  50
  51 #define RB150_GPIO_NAND_READY   ADM5120_GPIO_PIN0
  52 #define RB150_GPIO_NAND_NCE     ADM5120_GPIO_PIN1
  53 #define RB150_GPIO_NAND_CLE     ADM5120_GPIO_P2L2
  54 #define RB150_GPIO_NAND_ALE     ADM5120_GPIO_P3L2
  55
  56 #define RB150_NAND_DELAY        100
  57
  58 #define RB150_NAND_WRITE(v) \
  59         writeb((v), (void __iomem *)KSEG1ADDR(RB150_NAND_BASE))
  60
  61 /*--------------------------------------------------------------------------*/
  62
  63 static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
  64         PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
  65         PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
  66         PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
  67 };
  68
  69 static struct mtd_partition rb1xx_nor_parts[] = {
  70         {
  71                 .name   = "booter",
  72                 .offset = 0,
  73                 .size   = 64*1024,
  74                 .mask_flags = MTD_WRITEABLE,
  75         } , {
  76                 .name   = "firmware",
  77                 .offset = MTDPART_OFS_APPEND,
  78                 .size   = MTDPART_SIZ_FULL,
  79         }
  80 };
  81
  82 static struct mtd_partition rb1xx_nand_parts[] = {
  83         {
  84                 .name   = "kernel",
  85                 .offset = 0,
  86                 .size   = 4 * 1024 * 1024,
  87         } , {
  88                 .name   = "rootfs",
  89                 .offset = MTDPART_OFS_NXTBLK,
  90                 .size   = MTDPART_SIZ_FULL
  91         }
  92 };
  93
  94 static struct platform_device *rb1xx_devices[] __initdata = {
  95         &adm5120_flash0_device,
  96         &adm5120_nand_device,
  97 };
  98
  99 /*
 100  * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
 101  * will not be able to find the kernel that we load.  So set the oobinfo
 102  * when creating the partitions
 103  */
 104 static struct nand_ecclayout rb1xx_nand_ecclayout = {
 105         .eccbytes       = 6,
 106         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 107         .oobavail       = 9,
 108         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 109 };
 110
 111 static struct resource rb150_nand_resource[] = {
 112         [0] = {
 113                 .start  = RB150_NAND_BASE,
 114                 .end    = RB150_NAND_BASE + RB150_NAND_SIZE-1,
 115                 .flags  = IORESOURCE_MEM,
 116         },
 117 };
 118
 119 #if 0
 120 /*
 121  * RB1xx boards have bad network performance with the default VLAN matrixes.
 122  * Disable it while the ethernet driver gets fixed.
 123  */
 124 static unsigned char rb11x_vlans[6] __initdata = {
 125         /* FIXME: untested */
 126         0x41, 0x00, 0x00, 0x00, 0x00, 0x00
 127 };
 128
 129 static unsigned char rb133_vlans[6] __initdata = {
 130         /* FIXME: untested */
 131         0x44, 0x42, 0x41, 0x00, 0x00, 0x00
 132 };
 133
 134 static unsigned char rb133c_vlans[6] __initdata = {
 135         /* FIXME: untested */
 136         0x44, 0x00, 0x00, 0x00, 0x00, 0x00
 137 };
 138
 139 static unsigned char rb15x_vlans[6] __initdata = {
 140         /* FIXME: untested */
 141         0x41, 0x42, 0x44, 0x48, 0x50, 0x00
 142
 143 static unsigned char rb192_vlans[6] __initdata = {
 144         /* FIXME: untested */
 145         0x41, 0x50, 0x48, 0x44, 0x42, 0x00
 146 };
 147 #else
 148 static unsigned char rb_vlans[6] __initdata = {
 149         0x7F, 0x00, 0x00, 0x00, 0x00, 0x00
 150 };
 151 #define rb11x_vlans     rb_vlans
 152 #define rb133_vlans     rb_vlans
 153 #define rb133c_vlans    rb_vlans
 154 #define rb15x_vlans     rb_vlans
 155 #define rb192_vlans     rb_vlans
 156 #endif
 157
 158 /*--------------------------------------------------------------------------*/
 159
 160 static int rb150_nand_ready(struct mtd_info *mtd)
 161 {
 162         return gpio_get_value(RB150_GPIO_NAND_READY);
 163 }
 164
 165 static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 166                 unsigned int ctrl)
 167 {
 168         if (ctrl & NAND_CTRL_CHANGE) {
 169                 gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
 170                 gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
 171                 gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
 172         }
 173
 174         udelay(RB150_NAND_DELAY);
 175
 176         if (cmd != NAND_CMD_NONE)
 177                 RB150_NAND_WRITE(cmd);
 178 }
 179
 180 /*--------------------------------------------------------------------------*/
 181
 182 static void __init rb1xx_mac_setup(void)
 183 {
 184         /* TODO */
 185 }
 186
 187 static void __init rb1xx_flash_setup(void)
 188 {
 189         /* setup data for flash0 device */
 190         adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
 191         adm5120_flash0_data.parts = rb1xx_nor_parts;
 192
 193         /* setup data for NAND device */
 194         adm5120_nand_data.chip.nr_chips = 1;
 195         adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_parts);
 196         adm5120_nand_data.chip.partitions = rb1xx_nand_parts;
 197         adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
 198         adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
 199         adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
 200 }
 201
 202 static void __init rb1xx_setup(void)
 203 {
 204         /* enable NAND flash interface */
 205         adm5120_nand_enable();
 206
 207         /* initialize NAND chip */
 208         adm5120_nand_set_spn(1);
 209         adm5120_nand_set_wpn(0);
 210
 211         rb1xx_flash_setup();
 212         rb1xx_mac_setup();
 213 }
 214
 215 static void __init rb150_setup(void)
 216 {
 217         /* setup GPIO pins for NAND flash chip */
 218         gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
 219         gpio_direction_input(RB150_GPIO_NAND_READY);
 220         gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
 221         gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
 222         gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
 223         gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
 224         gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
 225         gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
 226
 227         adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
 228         adm5120_nand_device.resource = rb150_nand_resource;
 229         adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
 230         adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
 231
 232         rb1xx_flash_setup();
 233         rb1xx_mac_setup();
 234 }
 235
 236 /*--------------------------------------------------------------------------*/
 237
 238 static struct adm5120_board rb111_board __initdata = {
 239         .mach_type      = MACH_ADM5120_RB_111,
 240         .name           = "Mikrotik RouterBOARD 111",
 241         .board_setup    = rb1xx_setup,
 242         .eth_num_ports  = 1,
 243         .eth_vlans      = rb11x_vlans,
 244         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 245         .devices        = rb1xx_devices,
 246         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 247         .pci_irq_map    = rb1xx_pci_irqs,
 248 };
 249
 250 static struct adm5120_board rb112_board __initdata = {
 251         .mach_type      = MACH_ADM5120_RB_112,
 252         .name           = "Mikrotik RouterBOARD 112",
 253         .board_setup    = rb1xx_setup,
 254         .eth_num_ports  = 1,
 255         .eth_vlans      = rb11x_vlans,
 256         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 257         .devices        = rb1xx_devices,
 258         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 259         .pci_irq_map    = rb1xx_pci_irqs,
 260 };
 261
 262 static struct adm5120_board rb133_board __initdata = {
 263         .mach_type      = MACH_ADM5120_RB_133,
 264         .name           = "Mikrotik RouterBOARD 133",
 265         .board_setup    = rb1xx_setup,
 266         .eth_num_ports  = 3,
 267         .eth_vlans      = rb133_vlans,
 268         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 269         .devices        = rb1xx_devices,
 270         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 271         .pci_irq_map    = rb1xx_pci_irqs,
 272 };
 273
 274 static struct adm5120_board rb133c_board __initdata = {
 275         .mach_type      = MACH_ADM5120_RB_133C,
 276         .name           = "Mikrotik RouterBOARD 133C",
 277         .board_setup    = rb1xx_setup,
 278         .eth_num_ports  = 1,
 279         .eth_vlans      = rb133c_vlans,
 280         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 281         .devices        = rb1xx_devices,
 282         .pci_nr_irqs    = ARRAY_SIZE(rb1xx_pci_irqs),
 283         .pci_irq_map    = rb1xx_pci_irqs,
 284 };
 285
 286 static struct adm5120_board rb150_board __initdata = {
 287         .mach_type      = MACH_ADM5120_RB_150,
 288         .name           = "Mikrotik RouterBOARD 150",
 289         .board_setup    = rb150_setup,
 290         .eth_num_ports  = 5,
 291         .eth_vlans      = rb15x_vlans,
 292         .num_devices    = ARRAY_SIZE(rb1xx_devices),
 293         .devices        = rb1xx_devices,
 294 };
 295
 296 static struct adm5120_board rb153_board __initdata = {
 297         .mach_type      = MACH_ADM5120_RB_153,
 298         .name           = "Mikrotik RouterBOARD 153",
 299         .board_setup    = rb1xx_setup,
 300         .eth_num_ports  = 5,
 301         .eth_vlans      = rb15x_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 };
 307
 308 static struct adm5120_board rb192_board __initdata = {
 309         .mach_type      = MACH_ADM5120_RB_192,
 310         .name           = "Mikrotik RouterBOARD 192",
 311         .board_setup    = rb1xx_setup,
 312         .eth_num_ports  = 5,
 313         .eth_vlans      = rb192_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 };
 319
 320 static int __init register_boards(void)
 321 {
 322         adm5120_board_register(&rb111_board);
 323         adm5120_board_register(&rb112_board);
 324         adm5120_board_register(&rb133_board);
 325         adm5120_board_register(&rb133c_board);
 326         adm5120_board_register(&rb150_board);
 327         adm5120_board_register(&rb153_board);
 328         adm5120_board_register(&rb192_board);
 329         return 0;
 330 }
 331
 332 pure_initcall(register_boards);