release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/boards/mach-se/7780/setup.c

   1 /*
   2  * linux/arch/sh/boards/se/7780/setup.c
   3  *
   4  * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
   5  *
   6  * Hitachi UL SolutionEngine 7780 Support.
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file "COPYING" in the main directory of this archive
  10  * for more details.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <asm/machvec.h>
  15 #include <mach-se/mach/se7780.h>
  16 #include <asm/io.h>
  17 #include <asm/heartbeat.h>
  18
  19 /* Heartbeat */
  20 static struct resource heartbeat_resource = {
  21         .start  = PA_LED,
  22         .end    = PA_LED,
  23         .flags  = IORESOURCE_MEM | IORESOURCE_MEM_16BIT,
  24 };
  25
  26 static struct platform_device heartbeat_device = {
  27         .name           = "heartbeat",
  28         .id             = -1,
  29         .num_resources  = 1,
  30         .resource       = &heartbeat_resource,
  31 };
  32
  33 /* SMC91x */
  34 static struct resource smc91x_eth_resources[] = {
  35         [0] = {
  36                 .name   = "smc91x-regs" ,
  37                 .start  = PA_LAN + 0x300,
  38                 .end    = PA_LAN + 0x300 + 0x10 ,
  39                 .flags  = IORESOURCE_MEM,
  40         },
  41         [1] = {
  42                 .start  = SMC_IRQ,
  43                 .end    = SMC_IRQ,
  44                 .flags  = IORESOURCE_IRQ,
  45         },
  46 };
  47
  48 static struct platform_device smc91x_eth_device = {
  49         .name           = "smc91x",
  50         .id             = 0,
  51         .dev = {
  52                 .dma_mask               = NULL,         /* don't use dma */
  53                 .coherent_dma_mask      = 0xffffffff,
  54         },
  55         .num_resources  = ARRAY_SIZE(smc91x_eth_resources),
  56         .resource       = smc91x_eth_resources,
  57 };
  58
  59 static struct platform_device *se7780_devices[] __initdata = {
  60         &heartbeat_device,
  61         &smc91x_eth_device,
  62 };
  63
  64 static int __init se7780_devices_setup(void)
  65 {
  66         return platform_add_devices(se7780_devices,
  67                 ARRAY_SIZE(se7780_devices));
  68 }
  69 device_initcall(se7780_devices_setup);
  70
  71 #define GPIO_PHCR        0xFFEA000E
  72 #define GPIO_PMSELR      0xFFEA0080
  73 #define GPIO_PECR        0xFFEA0008
  74
  75 static void __init se7780_setup(char **cmdline_p)
  76 {
  77         /* "SH-Linux" on LED Display */
  78         __raw_writew( 'S' , PA_LED_DISP + (DISP_SEL0_ADDR << 1) );
  79         __raw_writew( 'H' , PA_LED_DISP + (DISP_SEL1_ADDR << 1) );
  80         __raw_writew( '-' , PA_LED_DISP + (DISP_SEL2_ADDR << 1) );
  81         __raw_writew( 'L' , PA_LED_DISP + (DISP_SEL3_ADDR << 1) );
  82         __raw_writew( 'i' , PA_LED_DISP + (DISP_SEL4_ADDR << 1) );
  83         __raw_writew( 'n' , PA_LED_DISP + (DISP_SEL5_ADDR << 1) );
  84         __raw_writew( 'u' , PA_LED_DISP + (DISP_SEL6_ADDR << 1) );
  85         __raw_writew( 'x' , PA_LED_DISP + (DISP_SEL7_ADDR << 1) );
  86
  87         printk(KERN_INFO "Hitachi UL Solutions Engine 7780SE03 support.\n");
  88
  89         /*
  90          * PCI REQ/GNT setting
  91          *   REQ0/GNT0 -> USB
  92          *   REQ1/GNT1 -> PC Card
  93          *   REQ2/GNT2 -> Serial ATA
  94          *   REQ3/GNT3 -> PCI slot
  95          */
  96         __raw_writew(0x0213, FPGA_REQSEL);
  97
  98         /* GPIO setting */
  99         __raw_writew(0x0000, GPIO_PECR);
 100         __raw_writew(__raw_readw(GPIO_PHCR)&0xfff3, GPIO_PHCR);
 101         __raw_writew(0x0c00, GPIO_PMSELR);
 102
 103         /* iVDR Power ON */
 104         __raw_writew(0x0001, FPGA_IVDRPW);
 105 }
 106
 107 /*
 108  * The Machine Vector
 109  */
 110 static struct sh_machine_vector mv_se7780 __initmv = {
 111         .mv_name                = "Solution Engine 7780" ,
 112         .mv_setup               = se7780_setup ,
 113         .mv_nr_irqs             = 111 ,
 114         .mv_init_irq            = init_se7780_IRQ,
 115 };