arch/arm/mach-orion5x/rd88f5182-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/rd88f5182-setup.c
   3  *
   4  * Marvell Orion-NAS Reference Design Setup
   5  *
   6  * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2.  This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/pci.h>
  17 #include <linux/irq.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/mv643xx_eth.h>
  20 #include <linux/ata_platform.h>
  21 #include <linux/i2c.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/gpio.h>
  24 #include <asm/leds.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/pci.h>
  27 #include <mach/orion5x.h>
  28 #include "common.h"
  29 #include "mpp.h"
  30
  31 /*****************************************************************************
  32  * RD-88F5182 Info
  33  ****************************************************************************/
  34
  35 /*
  36  * 512K NOR flash Device bus boot chip select
  37  */
  38
  39 #define RD88F5182_NOR_BOOT_BASE         0xf4000000
  40 #define RD88F5182_NOR_BOOT_SIZE         SZ_512K
  41
  42 /*
  43  * 16M NOR flash on Device bus chip select 1
  44  */
  45
  46 #define RD88F5182_NOR_BASE              0xfc000000
  47 #define RD88F5182_NOR_SIZE              SZ_16M
  48
  49 /*
  50  * PCI
  51  */
  52
  53 #define RD88F5182_PCI_SLOT0_OFFS        7
  54 #define RD88F5182_PCI_SLOT0_IRQ_A_PIN   7
  55 #define RD88F5182_PCI_SLOT0_IRQ_B_PIN   6
  56
  57 /*
  58  * GPIO Debug LED
  59  */
  60
  61 #define RD88F5182_GPIO_DBG_LED          0
  62
  63 /*****************************************************************************
  64  * 16M NOR Flash on Device bus CS1
  65  ****************************************************************************/
  66
  67 static struct physmap_flash_data rd88f5182_nor_flash_data = {
  68         .width          = 1,
  69 };
  70
  71 static struct resource rd88f5182_nor_flash_resource = {
  72         .flags                  = IORESOURCE_MEM,
  73         .start                  = RD88F5182_NOR_BASE,
  74         .end                    = RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
  75 };
  76
  77 static struct platform_device rd88f5182_nor_flash = {
  78         .name                   = "physmap-flash",
  79         .id                     = 0,
  80         .dev            = {
  81                 .platform_data  = &rd88f5182_nor_flash_data,
  82         },
  83         .num_resources          = 1,
  84         .resource               = &rd88f5182_nor_flash_resource,
  85 };
  86
  87 #ifdef CONFIG_LEDS
  88
  89 /*****************************************************************************
  90  * Use GPIO debug led as CPU active indication
  91  ****************************************************************************/
  92
  93 static void rd88f5182_dbgled_event(led_event_t evt)
  94 {
  95         int val;
  96
  97         if (evt == led_idle_end)
  98                 val = 1;
  99         else if (evt == led_idle_start)
 100                 val = 0;
 101         else
 102                 return;
 103
 104         gpio_set_value(RD88F5182_GPIO_DBG_LED, val);
 105 }
 106
 107 static int __init rd88f5182_dbgled_init(void)
 108 {
 109         int pin;
 110
 111         if (machine_is_rd88f5182()) {
 112                 pin = RD88F5182_GPIO_DBG_LED;
 113
 114                 if (gpio_request(pin, "DBGLED") == 0) {
 115                         if (gpio_direction_output(pin, 0) != 0) {
 116                                 printk(KERN_ERR "rd88f5182_dbgled_init failed "
 117                                                 "to set output pin %d\n", pin);
 118                                 gpio_free(pin);
 119                                 return 0;
 120                         }
 121                 } else {
 122                         printk(KERN_ERR "rd88f5182_dbgled_init failed "
 123                                         "to request gpio %d\n", pin);
 124                         return 0;
 125                 }
 126
 127                 leds_event = rd88f5182_dbgled_event;
 128         }
 129
 130         return 0;
 131 }
 132
 133 __initcall(rd88f5182_dbgled_init);
 134
 135 #endif
 136
 137 /*****************************************************************************
 138  * PCI
 139  ****************************************************************************/
 140
 141 void __init rd88f5182_pci_preinit(void)
 142 {
 143         int pin;
 144
 145         /*
 146          * Configure PCI GPIO IRQ pins
 147          */
 148         pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
 149         if (gpio_request(pin, "PCI IntA") == 0) {
 150                 if (gpio_direction_input(pin) == 0) {
 151                         irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 152                 } else {
 153                         printk(KERN_ERR "rd88f5182_pci_preinit faield to "
 154                                         "set_irq_type pin %d\n", pin);
 155                         gpio_free(pin);
 156                 }
 157         } else {
 158                 printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
 159         }
 160
 161         pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
 162         if (gpio_request(pin, "PCI IntB") == 0) {
 163                 if (gpio_direction_input(pin) == 0) {
 164                         irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 165                 } else {
 166                         printk(KERN_ERR "rd88f5182_pci_preinit faield to "
 167                                         "set_irq_type pin %d\n", pin);
 168                         gpio_free(pin);
 169                 }
 170         } else {
 171                 printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
 172         }
 173 }
 174
 175 static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
 176         u8 pin)
 177 {
 178         int irq;
 179
 180         /*
 181          * Check for devices with hard-wired IRQs.
 182          */
 183         irq = orion5x_pci_map_irq(dev, slot, pin);
 184         if (irq != -1)
 185                 return irq;
 186
 187         /*
 188          * PCI IRQs are connected via GPIOs
 189          */
 190         switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
 191         case 0:
 192                 if (pin == 1)
 193                         return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
 194                 else
 195                         return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
 196         default:
 197                 return -1;
 198         }
 199 }
 200
 201 static struct hw_pci rd88f5182_pci __initdata = {
 202         .nr_controllers = 2,
 203         .preinit        = rd88f5182_pci_preinit,
 204         .swizzle        = pci_std_swizzle,
 205         .setup          = orion5x_pci_sys_setup,
 206         .scan           = orion5x_pci_sys_scan_bus,
 207         .map_irq        = rd88f5182_pci_map_irq,
 208 };
 209
 210 static int __init rd88f5182_pci_init(void)
 211 {
 212         if (machine_is_rd88f5182())
 213                 pci_common_init(&rd88f5182_pci);
 214
 215         return 0;
 216 }
 217
 218 subsys_initcall(rd88f5182_pci_init);
 219
 220 /*****************************************************************************
 221  * Ethernet
 222  ****************************************************************************/
 223
 224 static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
 225         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
 226 };
 227
 228 /*****************************************************************************
 229  * RTC DS1338 on I2C bus
 230  ****************************************************************************/
 231 static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
 232         I2C_BOARD_INFO("ds1338", 0x68),
 233 };
 234
 235 /*****************************************************************************
 236  * Sata
 237  ****************************************************************************/
 238 static struct mv_sata_platform_data rd88f5182_sata_data = {
 239         .n_ports        = 2,
 240 };
 241
 242 /*****************************************************************************
 243  * General Setup
 244  ****************************************************************************/
 245 static unsigned int rd88f5182_mpp_modes[] __initdata = {
 246         MPP0_GPIO,              /* Debug Led */
 247         MPP1_GPIO,              /* Reset Switch */
 248         MPP2_UNUSED,
 249         MPP3_GPIO,              /* RTC Int */
 250         MPP4_GPIO,
 251         MPP5_GPIO,
 252         MPP6_GPIO,              /* PCI_intA */
 253         MPP7_GPIO,              /* PCI_intB */
 254         MPP8_UNUSED,
 255         MPP9_UNUSED,
 256         MPP10_UNUSED,
 257         MPP11_UNUSED,
 258         MPP12_SATA_LED,         /* SATA 0 presence */
 259         MPP13_SATA_LED,         /* SATA 1 presence */
 260         MPP14_SATA_LED,         /* SATA 0 active */
 261         MPP15_SATA_LED,         /* SATA 1 active */
 262         MPP16_UNUSED,
 263         MPP17_UNUSED,
 264         MPP18_UNUSED,
 265         MPP19_UNUSED,
 266         0,
 267 };
 268
 269 static void __init rd88f5182_init(void)
 270 {
 271         /*
 272          * Setup basic Orion functions. Need to be called early.
 273          */
 274         orion5x_init();
 275
 276         orion5x_mpp_conf(rd88f5182_mpp_modes);
 277
 278         /*
 279          * MPP[20] PCI Clock to MV88F5182
 280          * MPP[21] PCI Clock to mini PCI CON11
 281          * MPP[22] USB 0 over current indication
 282          * MPP[23] USB 1 over current indication
 283          * MPP[24] USB 1 over current enable
 284          * MPP[25] USB 0 over current enable
 285          */
 286
 287         /*
 288          * Configure peripherals.
 289          */
 290         orion5x_ehci0_init();
 291         orion5x_ehci1_init();
 292         orion5x_eth_init(&rd88f5182_eth_data);
 293         orion5x_i2c_init();
 294         orion5x_sata_init(&rd88f5182_sata_data);
 295         orion5x_uart0_init();
 296         orion5x_xor_init();
 297
 298         orion5x_setup_dev_boot_win(RD88F5182_NOR_BOOT_BASE,
 299                                    RD88F5182_NOR_BOOT_SIZE);
 300
 301         orion5x_setup_dev1_win(RD88F5182_NOR_BASE, RD88F5182_NOR_SIZE);
 302         platform_device_register(&rd88f5182_nor_flash);
 303
 304         i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
 305 }
 306
 307 MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
 308         /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
 309         .boot_params    = 0x00000100,
 310         .init_machine   = rd88f5182_init,
 311         .map_io         = orion5x_map_io,
 312         .init_early     = orion5x_init_early,
 313         .init_irq       = orion5x_init_irq,
 314         .timer          = &orion5x_timer,
 315 MACHINE_END