target/linux/adm5120/files-2.6.26/arch/mips/adm5120/common/platform.c

   1 /*
   2  *  ADM5120 generic platform devices
   3  *
   4  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/list.h>
  15 #include <linux/device.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/gpio.h>
  19
  20 #include <asm/bootinfo.h>
  21
  22 #include <asm/mach-adm5120/adm5120_defs.h>
  23 #include <asm/mach-adm5120/adm5120_info.h>
  24 #include <asm/mach-adm5120/adm5120_irq.h>
  25 #include <asm/mach-adm5120/adm5120_switch.h>
  26 #include <asm/mach-adm5120/adm5120_nand.h>
  27 #include <asm/mach-adm5120/adm5120_platform.h>
  28
  29 #if 1
  30 /*
  31  * TODO:remove global adm5120_eth* variables when the switch driver will be
  32  *      converted into a real platform driver
  33  */
  34 unsigned int adm5120_eth_num_ports = 6;
  35 EXPORT_SYMBOL_GPL(adm5120_eth_num_ports);
  36
  37 unsigned char adm5120_eth_macs[6][6] = {
  38         {'\00', 'A', 'D', 'M', '\x51', '\x20' },
  39         {'\00', 'A', 'D', 'M', '\x51', '\x21' },
  40         {'\00', 'A', 'D', 'M', '\x51', '\x22' },
  41         {'\00', 'A', 'D', 'M', '\x51', '\x23' },
  42         {'\00', 'A', 'D', 'M', '\x51', '\x24' },
  43         {'\00', 'A', 'D', 'M', '\x51', '\x25' }
  44 };
  45 EXPORT_SYMBOL_GPL(adm5120_eth_macs);
  46
  47 unsigned char adm5120_eth_vlans[6] = {
  48         0x41, 0x42, 0x44, 0x48, 0x50, 0x60
  49 };
  50 EXPORT_SYMBOL_GPL(adm5120_eth_vlans);
  51 #endif
  52
  53 /*
  54  * Built-in ethernet switch
  55  */
  56 struct resource adm5120_switch_resources[] = {
  57         [0] = {
  58                 .start  = ADM5120_SWITCH_BASE,
  59                 .end    = ADM5120_SWITCH_BASE+ADM5120_SWITCH_SIZE-1,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62         [1] = {
  63                 .start  = ADM5120_IRQ_SWITCH,
  64                 .end    = ADM5120_IRQ_SWITCH,
  65                 .flags  = IORESOURCE_IRQ,
  66         },
  67 };
  68
  69 struct adm5120_switch_platform_data adm5120_switch_data;
  70 struct platform_device adm5120_switch_device = {
  71         .name           = "adm5120-switch",
  72         .id             = -1,
  73         .num_resources  = ARRAY_SIZE(adm5120_switch_resources),
  74         .resource       = adm5120_switch_resources,
  75         .dev.platform_data = &adm5120_switch_data,
  76 };
  77
  78 void __init adm5120_add_device_switch(unsigned num_ports, u8 *vlan_map)
  79 {
  80         if (num_ports > 0)
  81                 adm5120_eth_num_ports = num_ports;
  82
  83         if (vlan_map)
  84                 memcpy(adm5120_eth_vlans, vlan_map, sizeof(adm5120_eth_vlans));
  85
  86         platform_device_register(&adm5120_switch_device);
  87 }
  88
  89 /*
  90  * USB Host Controller
  91  */
  92 struct resource adm5120_hcd_resources[] = {
  93         [0] = {
  94                 .start  = ADM5120_USBC_BASE,
  95                 .end    = ADM5120_USBC_BASE+ADM5120_USBC_SIZE-1,
  96                 .flags  = IORESOURCE_MEM,
  97         },
  98         [1] = {
  99                 .start  = ADM5120_IRQ_USBC,
 100                 .end    = ADM5120_IRQ_USBC,
 101                 .flags  = IORESOURCE_IRQ,
 102         },
 103 };
 104
 105 static u64 adm5120_hcd_dma_mask = DMA_BIT_MASK(24);
 106 struct platform_device adm5120_hcd_device = {
 107         .name           = "adm5120-hcd",
 108         .id             = -1,
 109         .num_resources  = ARRAY_SIZE(adm5120_hcd_resources),
 110         .resource       = adm5120_hcd_resources,
 111         .dev = {
 112                 .dma_mask               = &adm5120_hcd_dma_mask,
 113                 .coherent_dma_mask      = DMA_BIT_MASK(24),
 114         }
 115 };
 116
 117 void __init adm5120_add_device_usb(void)
 118 {
 119         platform_device_register(&adm5120_hcd_device);
 120 }
 121
 122 /*
 123  * NOR flash devices
 124  */
 125 struct adm5120_flash_platform_data adm5120_flash0_data;
 126 struct platform_device adm5120_flash0_device =  {
 127         .name                   = "adm5120-flash",
 128         .id                     = 0,
 129         .dev.platform_data      = &adm5120_flash0_data,
 130 };
 131
 132 struct adm5120_flash_platform_data adm5120_flash1_data;
 133 struct platform_device adm5120_flash1_device =  {
 134         .name                   = "adm5120-flash",
 135         .id                     = 1,
 136         .dev.platform_data      = &adm5120_flash1_data,
 137 };
 138
 139 void __init adm5120_add_device_flash(unsigned id)
 140 {
 141         struct platform_device *pdev;
 142
 143         switch (id) {
 144         case 0:
 145                 pdev = &adm5120_flash0_device;
 146                 break;
 147         case 1:
 148                 pdev = &adm5120_flash1_device;
 149                 break;
 150         default:
 151                 pdev = NULL;
 152                 break;
 153         }
 154
 155         if (pdev)
 156                 platform_device_register(pdev);
 157 }
 158
 159 /*
 160  * built-in UARTs
 161  */
 162 static void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
 163                 unsigned int mctrl)
 164 {
 165 }
 166
 167 struct amba_pl010_data adm5120_uart0_data = {
 168         .set_mctrl = adm5120_uart_set_mctrl
 169 };
 170
 171 struct amba_device adm5120_uart0_device = {
 172         .dev            = {
 173                 .bus_id = "APB:UART0",
 174                 .platform_data = &adm5120_uart0_data,
 175         },
 176         .res            = {
 177                 .start  = ADM5120_UART0_BASE,
 178                 .end    = ADM5120_UART0_BASE + ADM5120_UART_SIZE - 1,
 179                 .flags  = IORESOURCE_MEM,
 180         },
 181         .irq            = { ADM5120_IRQ_UART0, -1 },
 182         .periphid       = 0x0041010,
 183 };
 184
 185 struct amba_pl010_data adm5120_uart1_data = {
 186         .set_mctrl = adm5120_uart_set_mctrl
 187 };
 188
 189 struct amba_device adm5120_uart1_device = {
 190         .dev            = {
 191                 .bus_id = "APB:UART1",
 192                 .platform_data = &adm5120_uart1_data,
 193         },
 194         .res            = {
 195                 .start  = ADM5120_UART1_BASE,
 196                 .end    = ADM5120_UART1_BASE + ADM5120_UART_SIZE - 1,
 197                 .flags  = IORESOURCE_MEM,
 198         },
 199         .irq            = { ADM5120_IRQ_UART1, -1 },
 200         .periphid       = 0x0041010,
 201 };
 202
 203 void __init adm5120_add_device_uart(unsigned id)
 204 {
 205         struct amba_device *dev;
 206
 207         switch (id) {
 208         case 0:
 209                 dev = &adm5120_uart0_device;
 210                 break;
 211         case 1:
 212                 dev = &adm5120_uart1_device;
 213                 break;
 214         default:
 215                 dev = NULL;
 216                 break;
 217         }
 218
 219         if (dev)
 220                 amba_device_register(dev, &iomem_resource);
 221 }
 222
 223 /*
 224  * GPIO buttons
 225  */
 226 #define ADM5120_BUTTON_INTERVAL 20
 227 struct gpio_buttons_platform_data adm5120_gpio_buttons_data = {
 228         .poll_interval  = ADM5120_BUTTON_INTERVAL,
 229 };
 230
 231 struct platform_device adm5120_gpio_buttons_device = {
 232         .name           = "gpio-buttons",
 233         .id             = -1,
 234         .dev.platform_data = &adm5120_gpio_buttons_data,
 235 };
 236
 237 void __init adm5120_add_device_gpio_buttons(unsigned nbuttons,
 238                                     struct gpio_button *buttons)
 239 {
 240         struct gpio_button *p;
 241
 242         p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
 243         if (!p)
 244                 return;
 245
 246         memcpy(p, buttons, nbuttons * sizeof(*p));
 247         adm5120_gpio_buttons_data.nbuttons = nbuttons;
 248         adm5120_gpio_buttons_data.buttons = p;
 249
 250         platform_device_register(&adm5120_gpio_buttons_device);
 251 }
 252
 253 /*
 254  * GPIO LEDS
 255  */
 256 struct gpio_led_platform_data adm5120_gpio_leds_data;
 257 struct platform_device adm5120_gpio_leds_device = {
 258         .name           = "leds-gpio",
 259         .id             = -1,
 260         .dev.platform_data = &adm5120_gpio_leds_data,
 261 };
 262
 263 void __init adm5120_add_device_gpio_leds(unsigned num_leds,
 264                                     struct gpio_led *leds)
 265 {
 266         struct gpio_led *p;
 267
 268         p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
 269         if (!p)
 270                 return;
 271
 272         memcpy(p, leds, num_leds * sizeof(*p));
 273         adm5120_gpio_leds_data.num_leds = num_leds;
 274         adm5120_gpio_leds_data.leds = p;
 275
 276         platform_device_register(&adm5120_gpio_leds_device);
 277 }
 278
 279 /*
 280  * GPIO device
 281  */
 282 static struct resource adm5120_gpio_resource[] __initdata = {
 283         {
 284                 .start  = 0x3fffff,
 285         },
 286 };
 287
 288 void __init adm5120_add_device_gpio(u32 disable_mask)
 289 {
 290         if (adm5120_package_pqfp())
 291                 disable_mask |= 0xf0;
 292
 293         adm5120_gpio_resource[0].start &= ~disable_mask;
 294         platform_device_register_simple("GPIODEV", -1,
 295                         adm5120_gpio_resource,
 296                         ARRAY_SIZE(adm5120_gpio_resource));
 297 }
 298
 299 /*
 300  * NAND flash
 301  */
 302 struct resource adm5120_nand_resources[] = {
 303         [0] = {
 304                 .start  = ADM5120_NAND_BASE,
 305                 .end    = ADM5120_NAND_BASE + ADM5120_NAND_SIZE-1,
 306                 .flags  = IORESOURCE_MEM,
 307         },
 308 };
 309
 310 static int adm5120_nand_ready(struct mtd_info *mtd)
 311 {
 312         return ((adm5120_nand_get_status() & ADM5120_NAND_STATUS_READY) != 0);
 313 }
 314
 315 static void adm5120_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 316                                         unsigned int ctrl)
 317 {
 318         if (ctrl & NAND_CTRL_CHANGE) {
 319                 adm5120_nand_set_cle(ctrl & NAND_CLE);
 320                 adm5120_nand_set_ale(ctrl & NAND_ALE);
 321                 adm5120_nand_set_cen(ctrl & NAND_NCE);
 322         }
 323
 324         if (cmd != NAND_CMD_NONE)
 325                 NAND_WRITE_REG(NAND_REG_DATA, cmd);
 326 }
 327
 328 void __init adm5120_add_device_nand(struct platform_nand_data *pdata)
 329 {
 330         struct platform_device *pdev;
 331         int err;
 332
 333         pdev = platform_device_alloc("gen_nand", -1);
 334         if (!pdev)
 335                 goto err_out;
 336
 337         err = platform_device_add_resources(pdev, adm5120_nand_resources,
 338                                         ARRAY_SIZE(adm5120_nand_resources));
 339         if (err)
 340                 goto err_put;
 341
 342         err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
 343         if (err)
 344                 goto err_put;
 345
 346         pdata = pdev->dev.platform_data;
 347         pdata->ctrl.dev_ready = adm5120_nand_ready;
 348         pdata->ctrl.cmd_ctrl = adm5120_nand_cmd_ctrl;
 349
 350         err = platform_device_add(pdev);
 351         if (err)
 352                 goto err_put;
 353
 354         return;
 355
 356 err_put:
 357         platform_device_put(pdev);
 358 err_out:
 359         return;
 360 }