arch/arm/mach-pxa/capc7117.c

   1 /*
   2  * linux/arch/arm/mach-pxa/capc7117.c
   3  *
   4  * Support for the Embedian CAPC-7117 Evaluation Kit
   5  * based on the Embedian MXM-8x10 Computer on Module
   6  *
   7  * Copyright (C) 2009 Embedian Inc.
   8  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
   9  *
  10  * 2007-09-04: eric miao <eric.y.miao@gmail.com>
  11  *             rewrite to align with latest kernel
  12  *
  13  * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
  14  *             Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
  15  *             rework for upstream merge
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License version 2 as
  19  * published by the Free Software Foundation.
  20  */
  21
  22 #include <linux/irq.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/ata_platform.h>
  25 #include <linux/serial_8250.h>
  26 #include <linux/gpio.h>
  27 #include <linux/regulator/machine.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31
  32 #include <mach/pxa320.h>
  33 #include <mach/mxm8x10.h>
  34
  35 #include "generic.h"
  36
  37 /* IDE (PATA) Support */
  38 static struct pata_platform_info pata_platform_data = {
  39         .ioport_shift = 1
  40 };
  41
  42 static struct resource capc7117_ide_resources[] = {
  43         [0] = {
  44                .start = 0x11000020,
  45                .end = 0x1100003f,
  46                .flags = IORESOURCE_MEM
  47         },
  48         [1] = {
  49                .start = 0x1100001c,
  50                .end = 0x1100001c,
  51                .flags = IORESOURCE_MEM
  52         },
  53         [2] = {
  54                .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
  55                .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
  56                .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING
  57         }
  58 };
  59
  60 static struct platform_device capc7117_ide_device = {
  61         .name = "pata_platform",
  62         .num_resources = ARRAY_SIZE(capc7117_ide_resources),
  63         .resource = capc7117_ide_resources,
  64         .dev = {
  65                 .platform_data = &pata_platform_data,
  66                 .coherent_dma_mask = ~0         /* grumble */
  67         }
  68 };
  69
  70 static void __init capc7117_ide_init(void)
  71 {
  72         platform_device_register(&capc7117_ide_device);
  73 }
  74
  75 /* TI16C752 UART support */
  76 #define TI16C752_FLAGS          (UPF_BOOT_AUTOCONF | \
  77                                         UPF_IOREMAP | \
  78                                         UPF_BUGGY_UART | \
  79                                         UPF_SKIP_TEST)
  80 #define TI16C752_UARTCLK        (22118400)
  81 static struct plat_serial8250_port ti16c752_platform_data[] = {
  82         [0] = {
  83                .mapbase = 0x14000000,
  84                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO78)),
  85                .irqflags = IRQF_TRIGGER_RISING,
  86                .flags = TI16C752_FLAGS,
  87                .iotype = UPIO_MEM,
  88                .regshift = 1,
  89                .uartclk = TI16C752_UARTCLK
  90         },
  91         [1] = {
  92                .mapbase = 0x14000040,
  93                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO79)),
  94                .irqflags = IRQF_TRIGGER_RISING,
  95                .flags = TI16C752_FLAGS,
  96                .iotype = UPIO_MEM,
  97                .regshift = 1,
  98                .uartclk = TI16C752_UARTCLK
  99         },
 100         [2] = {
 101                .mapbase = 0x14000080,
 102                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO80)),
 103                .irqflags = IRQF_TRIGGER_RISING,
 104                .flags = TI16C752_FLAGS,
 105                .iotype = UPIO_MEM,
 106                .regshift = 1,
 107                .uartclk = TI16C752_UARTCLK
 108         },
 109         [3] = {
 110                .mapbase = 0x140000c0,
 111                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO81)),
 112                .irqflags = IRQF_TRIGGER_RISING,
 113                .flags = TI16C752_FLAGS,
 114                .iotype = UPIO_MEM,
 115                .regshift = 1,
 116                .uartclk = TI16C752_UARTCLK
 117         },
 118         [4] = {
 119                /* end of array */
 120         }
 121 };
 122
 123 static struct platform_device ti16c752_device = {
 124         .name = "serial8250",
 125         .id = PLAT8250_DEV_PLATFORM,
 126         .dev = {
 127                 .platform_data = ti16c752_platform_data
 128         }
 129 };
 130
 131 static void __init capc7117_uarts_init(void)
 132 {
 133         platform_device_register(&ti16c752_device);
 134 }
 135
 136 static void __init capc7117_init(void)
 137 {
 138         /* Init CoM */
 139         mxm_8x10_barebones_init();
 140
 141         /* Init evaluation board peripherals */
 142         mxm_8x10_ac97_init();
 143         mxm_8x10_usb_host_init();
 144         mxm_8x10_mmc_init();
 145
 146         capc7117_uarts_init();
 147         capc7117_ide_init();
 148
 149         regulator_has_full_constraints();
 150 }
 151
 152 MACHINE_START(CAPC7117,
 153               "Embedian CAPC-7117 evaluation kit based on the MXM-8x10 CoM")
 154         .atag_offset = 0x100,
 155         .map_io = pxa3xx_map_io,
 156         .nr_irqs = PXA_NR_IRQS,
 157         .init_irq = pxa3xx_init_irq,
 158         .handle_irq = pxa3xx_handle_irq,
 159         .init_time      = pxa_timer_init,
 160         .init_machine = capc7117_init,
 161         .restart        = pxa_restart,
 162 MACHINE_END