arch/sh/boards/board-urquell.c

   1 /*
   2  * Renesas Technology Corp. SH7786 Urquell Support.
   3  *
   4  * Copyright (C) 2008  Kuninori Morimoto <morimoto.kuninori@renesas.com>
   5  *
   6  * Based on board-sh7785lcr.c
   7  * Copyright (C) 2008  Yoshihiro Shimoda
   8  *
   9  * This file is subject to the terms and conditions of the GNU General Public
  10  * License.  See the file "COPYING" in the main directory of this archive
  11  * for more details.
  12  */
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/fb.h>
  16 #include <linux/smc91x.h>
  17 #include <linux/mtd/physmap.h>
  18 #include <linux/delay.h>
  19 #include <linux/gpio.h>
  20 #include <linux/irq.h>
  21 #include <mach/urquell.h>
  22 #include <cpu/sh7786.h>
  23 #include <asm/heartbeat.h>
  24 #include <asm/sizes.h>
  25
  26 /*
  27  * bit  1234 5678
  28  *----------------------------
  29  * SW1  0101 0010  -> Pck 33MHz version
  30  *     (1101 0010)    Pck 66MHz version
  31  * SW2  0x1x xxxx  -> little endian
  32  *                    29bit mode
  33  * SW47 0001 1000  -> CS0 : on-board flash
  34  *                    CS1 : SRAM, registers, LAN, PCMCIA
  35  *                    38400 bps for SCIF1
  36  *
  37  * Address
  38  * 0x00000000 - 0x04000000  (CS0)     Nor Flash
  39  * 0x04000000 - 0x04200000  (CS1)     SRAM
  40  * 0x05000000 - 0x05800000  (CS1)     on board register
  41  * 0x05800000 - 0x06000000  (CS1)     LAN91C111
  42  * 0x06000000 - 0x06400000  (CS1)     PCMCIA
  43  * 0x08000000 - 0x10000000  (CS2-CS3) DDR3
  44  * 0x10000000 - 0x14000000  (CS4)     PCIe
  45  * 0x14000000 - 0x14800000  (CS5)     Core0 LRAM/URAM
  46  * 0x14800000 - 0x15000000  (CS5)     Core1 LRAM/URAM
  47  * 0x18000000 - 0x1C000000  (CS6)     ATA/NAND-Flash
  48  * 0x1C000000 -             (CS7)     SH7786 Control register
  49  */
  50
  51 /* HeartBeat */
  52 static struct resource heartbeat_resources[] = {
  53         [0] = {
  54                 .start  = BOARDREG(SLEDR),
  55                 .end    = BOARDREG(SLEDR),
  56                 .flags  = IORESOURCE_MEM,
  57         },
  58 };
  59
  60 static struct heartbeat_data heartbeat_data = {
  61         .regsize = 16,
  62 };
  63
  64 static struct platform_device heartbeat_device = {
  65         .name           = "heartbeat",
  66         .id             = -1,
  67         .dev    = {
  68                 .platform_data  = &heartbeat_data,
  69         },
  70         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  71         .resource       = heartbeat_resources,
  72 };
  73
  74 /* LAN91C111 */
  75 static struct smc91x_platdata smc91x_info = {
  76         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  77 };
  78
  79 static struct resource smc91x_eth_resources[] = {
  80         [0] = {
  81                 .name   = "SMC91C111" ,
  82                 .start  = 0x05800300,
  83                 .end    = 0x0580030f,
  84                 .flags  = IORESOURCE_MEM,
  85         },
  86         [1] = {
  87                 .start  = 11,
  88                 .flags  = IORESOURCE_IRQ,
  89         },
  90 };
  91
  92 static struct platform_device smc91x_eth_device = {
  93         .name           = "smc91x",
  94         .num_resources  = ARRAY_SIZE(smc91x_eth_resources),
  95         .resource       = smc91x_eth_resources,
  96         .dev    = {
  97                 .platform_data  = &smc91x_info,
  98         },
  99 };
 100
 101 /* Nor Flash */
 102 static struct mtd_partition nor_flash_partitions[] = {
 103         {
 104                 .name           = "loader",
 105                 .offset         = 0x00000000,
 106                 .size           = SZ_512K,
 107                 .mask_flags     = MTD_WRITEABLE,        /* Read-only */
 108         },
 109         {
 110                 .name           = "bootenv",
 111                 .offset         = MTDPART_OFS_APPEND,
 112                 .size           = SZ_512K,
 113                 .mask_flags     = MTD_WRITEABLE,        /* Read-only */
 114         },
 115         {
 116                 .name           = "kernel",
 117                 .offset         = MTDPART_OFS_APPEND,
 118                 .size           = SZ_4M,
 119         },
 120         {
 121                 .name           = "data",
 122                 .offset         = MTDPART_OFS_APPEND,
 123                 .size           = MTDPART_SIZ_FULL,
 124         },
 125 };
 126
 127 static struct physmap_flash_data nor_flash_data = {
 128         .width          = 2,
 129         .parts          = nor_flash_partitions,
 130         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 131 };
 132
 133 static struct resource nor_flash_resources[] = {
 134         [0] = {
 135                 .start  = NOR_FLASH_ADDR,
 136                 .end    = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 1,
 137                 .flags  = IORESOURCE_MEM,
 138         }
 139 };
 140
 141 static struct platform_device nor_flash_device = {
 142         .name           = "physmap-flash",
 143         .dev            = {
 144                 .platform_data  = &nor_flash_data,
 145         },
 146         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 147         .resource       = nor_flash_resources,
 148 };
 149
 150 static struct platform_device *urquell_devices[] __initdata = {
 151         &heartbeat_device,
 152         &smc91x_eth_device,
 153         &nor_flash_device,
 154 };
 155
 156 static int __init urquell_devices_setup(void)
 157 {
 158         /* USB */
 159         gpio_request(GPIO_FN_USB_OVC0,  NULL);
 160         gpio_request(GPIO_FN_USB_PENC0, NULL);
 161
 162         /* enable LAN */
 163         __raw_writew(__raw_readw(UBOARDREG(IRL2MSKR)) & ~0x00000001,
 164                   UBOARDREG(IRL2MSKR));
 165
 166         return platform_add_devices(urquell_devices,
 167                                     ARRAY_SIZE(urquell_devices));
 168 }
 169 device_initcall(urquell_devices_setup);
 170
 171 static void urquell_power_off(void)
 172 {
 173         __raw_writew(0xa5a5, UBOARDREG(SRSTR));
 174 }
 175
 176 static void __init urquell_init_irq(void)
 177 {
 178         plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
 179 }
 180
 181 /* Initialize the board */
 182 static void __init urquell_setup(char **cmdline_p)
 183 {
 184         printk(KERN_INFO "Renesas Technology Corp. Urquell support.\n");
 185
 186         pm_power_off = urquell_power_off;
 187 }
 188
 189 /*
 190  * The Machine Vector
 191  */
 192 static struct sh_machine_vector mv_urquell __initmv = {
 193         .mv_name        = "Urquell",
 194         .mv_setup       = urquell_setup,
 195         .mv_init_irq    = urquell_init_irq,
 196 };