arch/arm/mach-iop3xx/iop331-setup.c

   1 /*
   2  * linux/arch/arm/mach-iop3xx/iop331-setup.c
   3  *
   4  * Author: Dave Jiang (dave.jiang@intel.com)
   5  * Copyright (C) 2004 Intel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  */
  12 #include <linux/mm.h>
  13 #include <linux/init.h>
  14 #include <linux/config.h>
  15 #include <linux/major.h>
  16 #include <linux/fs.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/serial.h>
  19 #include <linux/tty.h>
  20 #include <linux/serial_8250.h>
  21
  22 #include <asm/io.h>
  23 #include <asm/pgtable.h>
  24 #include <asm/page.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/setup.h>
  27 #include <asm/system.h>
  28 #include <asm/memory.h>
  29 #include <asm/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32
  33 #define IOP331_UART_XTAL 33334000
  34
  35 /*
  36  * Standard IO mapping for all IOP331 based systems
  37  */
  38 static struct map_desc iop331_std_desc[] __initdata = {
  39         {       /* mem mapped registers */
  40                 .virtual        = IOP331_VIRT_MEM_BASE,
  41                 .pfn            = __phys_to_pfn(IOP331_PHYS_MEM_BASE),
  42                 .length         = 0x00002000,
  43                 .type           = MT_DEVICE
  44         }, {    /* PCI IO space */
  45                 .virtual        = IOP331_PCI_LOWER_IO_VA,
  46                 .pfn            = __phys_to_pfn(IOP331_PCI_LOWER_IO_PA),
  47                 .length         = IOP331_PCI_IO_WINDOW_SIZE,
  48                 .type           = MT_DEVICE
  49         }
  50 };
  51
  52 static struct resource iop33x_uart0_resources[] = {
  53         [0] = {
  54                 .start = IOP331_UART0_PHYS,
  55                 .end = IOP331_UART0_PHYS + 0x3f,
  56                 .flags = IORESOURCE_MEM,
  57         },
  58         [1] = {
  59                 .start = IRQ_IOP331_UART0,
  60                 .end = IRQ_IOP331_UART0,
  61                 .flags = IORESOURCE_IRQ
  62         }
  63 };
  64
  65 static struct resource iop33x_uart1_resources[] = {
  66         [0] = {
  67                 .start = IOP331_UART1_PHYS,
  68                 .end = IOP331_UART1_PHYS + 0x3f,
  69                 .flags = IORESOURCE_MEM,
  70         },
  71         [1] = {
  72                 .start = IRQ_IOP331_UART1,
  73                 .end = IRQ_IOP331_UART1,
  74                 .flags = IORESOURCE_IRQ
  75         }
  76 };
  77
  78 static struct plat_serial8250_port iop33x_uart0_data[] = {
  79         {
  80        .membase     = (char*)(IOP331_UART0_VIRT),
  81        .mapbase     = (IOP331_UART0_PHYS),
  82        .irq         = IRQ_IOP331_UART0,
  83        .uartclk     = IOP331_UART_XTAL,
  84        .regshift    = 2,
  85        .iotype      = UPIO_MEM,
  86        .flags       = UPF_SKIP_TEST,
  87         },
  88         {  },
  89 };
  90
  91 static struct plat_serial8250_port iop33x_uart1_data[] = {
  92         {
  93        .membase     = (char*)(IOP331_UART1_VIRT),
  94        .mapbase     = (IOP331_UART1_PHYS),
  95        .irq         = IRQ_IOP331_UART1,
  96        .uartclk     = IOP331_UART_XTAL,
  97        .regshift    = 2,
  98        .iotype      = UPIO_MEM,
  99        .flags       = UPF_SKIP_TEST,
 100         },
 101         {  },
 102 };
 103
 104 static struct platform_device iop33x_uart0 = {
 105        .name = "serial8250",
 106        .id = PLAT8250_DEV_PLATFORM,
 107        .dev.platform_data = iop33x_uart0_data,
 108        .num_resources = 2,
 109        .resource = iop33x_uart0_resources,
 110 };
 111
 112 static struct platform_device iop33x_uart1 = {
 113        .name = "serial8250",
 114        .id = PLAT8250_DEV_PLATFORM1,
 115        .dev.platform_data = iop33x_uart1_data,
 116        .num_resources = 2,
 117        .resource = iop33x_uart1_resources,
 118 };
 119
 120 static struct resource iop33x_i2c_0_resources[] = {
 121         [0] = {
 122                 .start = 0xfffff680,
 123                 .end = 0xfffff698,
 124                 .flags = IORESOURCE_MEM,
 125         },
 126         [1] = {
 127                 .start = IRQ_IOP331_I2C_0,
 128                 .end = IRQ_IOP331_I2C_0,
 129                 .flags = IORESOURCE_IRQ
 130         }
 131 };
 132
 133 static struct resource iop33x_i2c_1_resources[] = {
 134         [0] = {
 135                 .start = 0xfffff6a0,
 136                 .end = 0xfffff6b8,
 137                 .flags = IORESOURCE_MEM,
 138         },
 139         [1] = {
 140                 .start = IRQ_IOP331_I2C_1,
 141                 .end = IRQ_IOP331_I2C_1,
 142                 .flags = IORESOURCE_IRQ
 143         }
 144 };
 145
 146 static struct platform_device iop33x_i2c_0_controller = {
 147         .name = "IOP3xx-I2C",
 148         .id = 0,
 149         .num_resources = 2,
 150         .resource = iop33x_i2c_0_resources
 151 };
 152
 153 static struct platform_device iop33x_i2c_1_controller = {
 154         .name = "IOP3xx-I2C",
 155         .id = 1,
 156         .num_resources = 2,
 157         .resource = iop33x_i2c_1_resources
 158 };
 159
 160 static struct platform_device *iop33x_devices[] __initdata = {
 161         &iop33x_uart0,
 162         &iop33x_uart1,
 163         &iop33x_i2c_0_controller,
 164         &iop33x_i2c_1_controller
 165 };
 166
 167 void __init iop33x_init(void)
 168 {
 169         if(iop_is_331())
 170         {
 171                 platform_add_devices(iop33x_devices,
 172                                 ARRAY_SIZE(iop33x_devices));
 173         }
 174 }
 175
 176 void __init iop331_map_io(void)
 177 {
 178         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
 179 }
 180
 181 #ifdef CONFIG_ARCH_IOP331
 182 extern void iop331_init_irq(void);
 183 extern struct sys_timer iop331_timer;
 184 #endif
 185
 186 #ifdef CONFIG_ARCH_IQ80331
 187 extern void iq80331_map_io(void);
 188 #endif
 189
 190 #ifdef CONFIG_MACH_IQ80332
 191 extern void iq80332_map_io(void);
 192 #endif
 193
 194 #if defined(CONFIG_ARCH_IQ80331)
 195 MACHINE_START(IQ80331, "Intel IQ80331")
 196         /* Maintainer: Intel Corp. */
 197         .phys_io        = 0xfefff000,
 198         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 199         .map_io         = iq80331_map_io,
 200         .init_irq       = iop331_init_irq,
 201         .timer          = &iop331_timer,
 202         .boot_params    = 0x0100,
 203         .init_machine   = iop33x_init,
 204 MACHINE_END
 205
 206 #elif defined(CONFIG_MACH_IQ80332)
 207 MACHINE_START(IQ80332, "Intel IQ80332")
 208         /* Maintainer: Intel Corp. */
 209         .phys_io        = 0xfefff000,
 210         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 211         .map_io         = iq80332_map_io,
 212         .init_irq       = iop331_init_irq,
 213         .timer          = &iop331_timer,
 214         .boot_params    = 0x0100,
 215         .init_machine   = iop33x_init,
 216 MACHINE_END
 217
 218 #else
 219 #error No machine descriptor defined for this IOP3XX implementation
 220 #endif
 221
 222