kernel/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 #include <linux/gpio.h>
  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 <linux/leds.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/pci.h>
  26 #include <mach/orion5x.h>
  27 #include "common.h"
  28 #include "mpp.h"
  29
  30 /*****************************************************************************
  31  * RD-88F5182 Info
  32  ****************************************************************************/
  33
  34 /*
  35  * 512K NOR flash Device bus boot chip select
  36  */
  37
  38 #define RD88F5182_NOR_BOOT_BASE         0xf4000000
  39 #define RD88F5182_NOR_BOOT_SIZE         SZ_512K
  40
  41 /*
  42  * 16M NOR flash on Device bus chip select 1
  43  */
  44
  45 #define RD88F5182_NOR_BASE              0xfc000000
  46 #define RD88F5182_NOR_SIZE              SZ_16M
  47
  48 /*
  49  * PCI
  50  */
  51
  52 #define RD88F5182_PCI_SLOT0_OFFS        7
  53 #define RD88F5182_PCI_SLOT0_IRQ_A_PIN   7
  54 #define RD88F5182_PCI_SLOT0_IRQ_B_PIN   6
  55
  56 /*****************************************************************************
  57  * 16M NOR Flash on Device bus CS1
  58  ****************************************************************************/
  59
  60 static struct physmap_flash_data rd88f5182_nor_flash_data = {
  61         .width          = 1,
  62 };
  63
  64 static struct resource rd88f5182_nor_flash_resource = {
  65         .flags                  = IORESOURCE_MEM,
  66         .start                  = RD88F5182_NOR_BASE,
  67         .end                    = RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
  68 };
  69
  70 static struct platform_device rd88f5182_nor_flash = {
  71         .name                   = "physmap-flash",
  72         .id                     = 0,
  73         .dev            = {
  74                 .platform_data  = &rd88f5182_nor_flash_data,
  75         },
  76         .num_resources          = 1,
  77         .resource               = &rd88f5182_nor_flash_resource,
  78 };
  79
  80 /*****************************************************************************
  81  * Use GPIO LED as CPU active indication
  82  ****************************************************************************/
  83
  84 #define RD88F5182_GPIO_LED              0
  85
  86 static struct gpio_led rd88f5182_gpio_led_pins[] = {
  87         {
  88                 .name           = "rd88f5182:cpu",
  89                 .default_trigger = "cpu0",
  90                 .gpio           = RD88F5182_GPIO_LED,
  91         },
  92 };
  93
  94 static struct gpio_led_platform_data rd88f5182_gpio_led_data = {
  95         .leds           = rd88f5182_gpio_led_pins,
  96         .num_leds       = ARRAY_SIZE(rd88f5182_gpio_led_pins),
  97 };
  98
  99 static struct platform_device rd88f5182_gpio_leds = {
 100         .name   = "leds-gpio",
 101         .id     = -1,
 102         .dev    = {
 103                 .platform_data = &rd88f5182_gpio_led_data,
 104         },
 105 };
 106
 107 /*****************************************************************************
 108  * PCI
 109  ****************************************************************************/
 110
 111 static void __init rd88f5182_pci_preinit(void)
 112 {
 113         int pin;
 114
 115         /*
 116          * Configure PCI GPIO IRQ pins
 117          */
 118         pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
 119         if (gpio_request(pin, "PCI IntA") == 0) {
 120                 if (gpio_direction_input(pin) == 0) {
 121                         irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 122                 } else {
 123                         printk(KERN_ERR "rd88f5182_pci_preinit failed to "
 124                                         "set_irq_type pin %d\n", pin);
 125                         gpio_free(pin);
 126                 }
 127         } else {
 128                 printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
 129         }
 130
 131         pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
 132         if (gpio_request(pin, "PCI IntB") == 0) {
 133                 if (gpio_direction_input(pin) == 0) {
 134                         irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
 135                 } else {
 136                         printk(KERN_ERR "rd88f5182_pci_preinit failed to "
 137                                         "set_irq_type pin %d\n", pin);
 138                         gpio_free(pin);
 139                 }
 140         } else {
 141                 printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
 142         }
 143 }
 144
 145 static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
 146         u8 pin)
 147 {
 148         int irq;
 149
 150         /*
 151          * Check for devices with hard-wired IRQs.
 152          */
 153         irq = orion5x_pci_map_irq(dev, slot, pin);
 154         if (irq != -1)
 155                 return irq;
 156
 157         /*
 158          * PCI IRQs are connected via GPIOs
 159          */
 160         switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
 161         case 0:
 162                 if (pin == 1)
 163                         return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
 164                 else
 165                         return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
 166         default:
 167                 return -1;
 168         }
 169 }
 170
 171 static struct hw_pci rd88f5182_pci __initdata = {
 172         .nr_controllers = 2,
 173         .preinit        = rd88f5182_pci_preinit,
 174         .setup          = orion5x_pci_sys_setup,
 175         .scan           = orion5x_pci_sys_scan_bus,
 176         .map_irq        = rd88f5182_pci_map_irq,
 177 };
 178
 179 static int __init rd88f5182_pci_init(void)
 180 {
 181         if (machine_is_rd88f5182())
 182                 pci_common_init(&rd88f5182_pci);
 183
 184         return 0;
 185 }
 186
 187 subsys_initcall(rd88f5182_pci_init);
 188
 189 /*****************************************************************************
 190  * Ethernet
 191  ****************************************************************************/
 192
 193 static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
 194         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
 195 };
 196
 197 /*****************************************************************************
 198  * RTC DS1338 on I2C bus
 199  ****************************************************************************/
 200 static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
 201         I2C_BOARD_INFO("ds1338", 0x68),
 202 };
 203
 204 /*****************************************************************************
 205  * Sata
 206  ****************************************************************************/
 207 static struct mv_sata_platform_data rd88f5182_sata_data = {
 208         .n_ports        = 2,
 209 };
 210
 211 /*****************************************************************************
 212  * General Setup
 213  ****************************************************************************/
 214 static unsigned int rd88f5182_mpp_modes[] __initdata = {
 215         MPP0_GPIO,              /* Debug Led */
 216         MPP1_GPIO,              /* Reset Switch */
 217         MPP2_UNUSED,
 218         MPP3_GPIO,              /* RTC Int */
 219         MPP4_GPIO,
 220         MPP5_GPIO,
 221         MPP6_GPIO,              /* PCI_intA */
 222         MPP7_GPIO,              /* PCI_intB */
 223         MPP8_UNUSED,
 224         MPP9_UNUSED,
 225         MPP10_UNUSED,
 226         MPP11_UNUSED,
 227         MPP12_SATA_LED,         /* SATA 0 presence */
 228         MPP13_SATA_LED,         /* SATA 1 presence */
 229         MPP14_SATA_LED,         /* SATA 0 active */
 230         MPP15_SATA_LED,         /* SATA 1 active */
 231         MPP16_UNUSED,
 232         MPP17_UNUSED,
 233         MPP18_UNUSED,
 234         MPP19_UNUSED,
 235         0,
 236 };
 237
 238 static void __init rd88f5182_init(void)
 239 {
 240         /*
 241          * Setup basic Orion functions. Need to be called early.
 242          */
 243         orion5x_init();
 244
 245         orion5x_mpp_conf(rd88f5182_mpp_modes);
 246
 247         /*
 248          * MPP[20] PCI Clock to MV88F5182
 249          * MPP[21] PCI Clock to mini PCI CON11
 250          * MPP[22] USB 0 over current indication
 251          * MPP[23] USB 1 over current indication
 252          * MPP[24] USB 1 over current enable
 253          * MPP[25] USB 0 over current enable
 254          */
 255
 256         /*
 257          * Configure peripherals.
 258          */
 259         orion5x_ehci0_init();
 260         orion5x_ehci1_init();
 261         orion5x_eth_init(&rd88f5182_eth_data);
 262         orion5x_i2c_init();
 263         orion5x_sata_init(&rd88f5182_sata_data);
 264         orion5x_uart0_init();
 265         orion5x_xor_init();
 266
 267         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 268                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 269                                     RD88F5182_NOR_BOOT_BASE,
 270                                     RD88F5182_NOR_BOOT_SIZE);
 271         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(1),
 272                                     ORION_MBUS_DEVBUS_ATTR(1),
 273                                     RD88F5182_NOR_BASE,
 274                                     RD88F5182_NOR_SIZE);
 275         platform_device_register(&rd88f5182_nor_flash);
 276         platform_device_register(&rd88f5182_gpio_leds);
 277
 278         i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
 279 }
 280
 281 MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
 282         /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
 283         .atag_offset    = 0x100,
 284         .init_machine   = rd88f5182_init,
 285         .map_io         = orion5x_map_io,
 286         .init_early     = orion5x_init_early,
 287         .init_irq       = orion5x_init_irq,
 288         .init_time      = orion5x_timer_init,
 289         .restart        = orion5x_restart,
 290 MACHINE_END