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 <mach/common.h>
  29 #include <mach/hardware.h>
  30 #include <mach/iomux-mx1.h>
  31
  32 #include "devices-imx1.h"
  33
  34 static const int apf9328_pins[] __initconst = {
  35         /* UART1 */
  36         PC9_PF_UART1_CTS,
  37         PC10_PF_UART1_RTS,
  38         PC11_PF_UART1_TXD,
  39         PC12_PF_UART1_RXD,
  40         /* UART2 */
  41         PB28_PF_UART2_CTS,
  42         PB29_PF_UART2_RTS,
  43         PB30_PF_UART2_TXD,
  44         PB31_PF_UART2_RXD,
  45         /* I2C */
  46         PA15_PF_I2C_SDA,
  47         PA16_PF_I2C_SCL,
  48 };
  49
  50 /*
  51  * The APF9328 can have up to 32MB NOR Flash
  52  */
  53 static struct resource flash_resource = {
  54         .start  = MX1_CS0_PHYS,
  55         .end    = MX1_CS0_PHYS + SZ_32M - 1,
  56         .flags  = IORESOURCE_MEM,
  57 };
  58
  59 static struct physmap_flash_data apf9328_flash_data = {
  60         .width  = 2,
  61 };
  62
  63 static struct platform_device apf9328_flash_device = {
  64         .name           = "physmap-flash",
  65         .id             = 0,
  66         .dev = {
  67                 .platform_data = &apf9328_flash_data,
  68         },
  69         .resource = &flash_resource,
  70         .num_resources = 1,
  71 };
  72
  73 /*
  74  * APF9328 has a DM9000 Ethernet controller
  75  */
  76 static struct dm9000_plat_data dm9000_setup = {
  77         .flags          = DM9000_PLATF_16BITONLY
  78 };
  79
  80 static struct resource dm9000_resources[] = {
  81         {
  82                 .start  = MX1_CS4_PHYS + 0x00C00000,
  83                 .end    = MX1_CS4_PHYS + 0x00C00001,
  84                 .flags  = IORESOURCE_MEM,
  85         }, {
  86                 .start  = MX1_CS4_PHYS + 0x00C00002,
  87                 .end    = MX1_CS4_PHYS + 0x00C00003,
  88                 .flags  = IORESOURCE_MEM,
  89         }, {
  90                 /* irq number is run-time assigned */
  91                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  92         },
  93 };
  94
  95 static struct platform_device dm9000x_device = {
  96         .name           = "dm9000",
  97         .id             = 0,
  98         .num_resources  = ARRAY_SIZE(dm9000_resources),
  99         .resource       = dm9000_resources,
 100         .dev            = {
 101                 .platform_data = &dm9000_setup,
 102         }
 103 };
 104
 105 static const struct imxuart_platform_data uart1_pdata __initconst = {
 106         .flags = IMXUART_HAVE_RTSCTS,
 107 };
 108
 109 static const struct imxi2c_platform_data apf9328_i2c_data __initconst = {
 110         .bitrate = 100000,
 111 };
 112
 113 static struct platform_device *devices[] __initdata = {
 114         &apf9328_flash_device,
 115         &dm9000x_device,
 116 };
 117
 118 static void __init apf9328_init(void)
 119 {
 120         imx1_soc_init();
 121
 122         mxc_gpio_setup_multiple_pins(apf9328_pins,
 123                         ARRAY_SIZE(apf9328_pins),
 124                         "APF9328");
 125
 126         imx1_add_imx_uart0(NULL);
 127         imx1_add_imx_uart1(&uart1_pdata);
 128
 129         imx1_add_imx_i2c(&apf9328_i2c_data);
 130
 131         dm9000_resources[2].start = gpio_to_irq(IMX_GPIO_NR(2, 14));
 132         dm9000_resources[2].end = gpio_to_irq(IMX_GPIO_NR(2, 14));
 133         platform_add_devices(devices, ARRAY_SIZE(devices));
 134 }
 135
 136 static void __init apf9328_timer_init(void)
 137 {
 138         mx1_clocks_init(32768);
 139 }
 140
 141 static struct sys_timer apf9328_timer = {
 142         .init   = apf9328_timer_init,
 143 };
 144
 145 MACHINE_START(APF9328, "Armadeus APF9328")
 146         /* Maintainer: Gwenhael Goavec-Merou, ARMadeus Systems */
 147         .map_io       = mx1_map_io,
 148         .init_early   = imx1_init_early,
 149         .init_irq     = mx1_init_irq,
 150         .handle_irq   = imx1_handle_irq,
 151         .timer        = &apf9328_timer,
 152         .init_machine = apf9328_init,
 153         .restart        = mxc_restart,
 154 MACHINE_END