arch/arm/mach-imx/mach-apf9328.c

   1 /*
   2  * linux/arch/arm/mach-imx/mach-apf9328.c
   3  *
   4  * Copyright (c) 2005-2011 ARMadeus systems <support@armadeus.com>
   5  *
   6  * This work is based on mach-scb9328.c which is:
   7  * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
   8  * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/init.h>
  17 #include <linux/kernel.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/mtd/physmap.h>
  20 #include <linux/dm9000.h>
  21 #include <linux/gpio.h>
  22 #include <linux/i2c.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/time.h>
  27
  28 #include "common.h"
  29 #include "devices-imx1.h"
  30 #include "hardware.h"
  31 #include "iomux-mx1.h"
  32
  33 static const int apf9328_pins[] __initconst = {
  34         /* UART1 */
  35         PC9_PF_UART1_CTS,
  36         PC10_PF_UART1_RTS,
  37         PC11_PF_UART1_TXD,
  38         PC12_PF_UART1_RXD,
  39         /* UART2 */
  40         PB28_PF_UART2_CTS,
  41         PB29_PF_UART2_RTS,
  42         PB30_PF_UART2_TXD,
  43         PB31_PF_UART2_RXD,
  44         /* I2C */
  45         PA15_PF_I2C_SDA,
  46         PA16_PF_I2C_SCL,
  47 };
  48
  49 /*
  50  * The APF9328 can have up to 32MB NOR Flash
  51  */
  52 static struct resource flash_resource = {
  53         .start  = MX1_CS0_PHYS,
  54         .end    = MX1_CS0_PHYS + SZ_32M - 1,
  55         .flags  = IORESOURCE_MEM,
  56 };
  57
  58 static struct physmap_flash_data apf9328_flash_data = {
  59         .width  = 2,
  60 };
  61
  62 static struct platform_device apf9328_flash_device = {
  63         .name           = "physmap-flash",
  64         .id             = 0,
  65         .dev = {
  66                 .platform_data = &apf9328_flash_data,
  67         },
  68         .resource = &flash_resource,
  69         .num_resources = 1,
  70 };
  71
  72 /*
  73  * APF9328 has a DM9000 Ethernet controller
  74  */
  75 static struct dm9000_plat_data dm9000_setup = {
  76         .flags          = DM9000_PLATF_16BITONLY
  77 };
  78
  79 static struct resource dm9000_resources[] = {
  80         {
  81                 .start  = MX1_CS4_PHYS + 0x00C00000,
  82                 .end    = MX1_CS4_PHYS + 0x00C00001,
  83                 .flags  = IORESOURCE_MEM,
  84         }, {
  85                 .start  = MX1_CS4_PHYS + 0x00C00002,
  86                 .end    = MX1_CS4_PHYS + 0x00C00003,
  87                 .flags  = IORESOURCE_MEM,
  88         }, {
  89                 /* irq number is run-time assigned */
  90                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  91         },
  92 };
  93
  94 static struct platform_device dm9000x_device = {
  95         .name           = "dm9000",
  96         .id             = 0,
  97         .num_resources  = ARRAY_SIZE(dm9000_resources),
  98         .resource       = dm9000_resources,
  99         .dev            = {
 100                 .platform_data = &dm9000_setup,
 101         }
 102 };
 103
 104 static const struct imxuart_platform_data uart1_pdata __initconst = {
 105         .flags = IMXUART_HAVE_RTSCTS,
 106 };
 107
 108 static const struct imxi2c_platform_data apf9328_i2c_data __initconst = {
 109         .bitrate = 100000,
 110 };
 111
 112 static struct platform_device *devices[] __initdata = {
 113         &apf9328_flash_device,
 114         &dm9000x_device,
 115 };
 116
 117 static void __init apf9328_init(void)
 118 {
 119         imx1_soc_init();
 120
 121         mxc_gpio_setup_multiple_pins(apf9328_pins,
 122                         ARRAY_SIZE(apf9328_pins),
 123                         "APF9328");
 124
 125         imx1_add_imx_uart0(NULL);
 126         imx1_add_imx_uart1(&uart1_pdata);
 127
 128         imx1_add_imx_i2c(&apf9328_i2c_data);
 129
 130         dm9000_resources[2].start = gpio_to_irq(IMX_GPIO_NR(2, 14));
 131         dm9000_resources[2].end = gpio_to_irq(IMX_GPIO_NR(2, 14));
 132         platform_add_devices(devices, ARRAY_SIZE(devices));
 133 }
 134
 135 static void __init apf9328_timer_init(void)
 136 {
 137         mx1_clocks_init(32768);
 138 }
 139
 140 MACHINE_START(APF9328, "Armadeus APF9328")
 141         /* Maintainer: Gwenhael Goavec-Merou, ARMadeus Systems */
 142         .map_io       = mx1_map_io,
 143         .init_early   = imx1_init_early,
 144         .init_irq     = mx1_init_irq,
 145         .handle_irq   = imx1_handle_irq,
 146         .init_time      = apf9328_timer_init,
 147         .init_machine = apf9328_init,
 148         .restart        = mxc_restart,
 149 MACHINE_END