arch/arm/mach-pxa/capc7117.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-pxa/capc7117.c
   4  *
   5  * Support for the Embedian CAPC-7117 Evaluation Kit
   6  * based on the Embedian MXM-8x10 Computer on Module
   7  *
   8  * Copyright (C) 2009 Embedian Inc.
   9  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
  10  *
  11  * 2007-09-04: eric miao <eric.y.miao@gmail.com>
  12  *             rewrite to align with latest kernel
  13  *
  14  * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
  15  *             Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
  16  *             rework for upstream merge
  17  */
  18
  19 #include <linux/irq.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/ata_platform.h>
  22 #include <linux/serial_8250.h>
  23 #include <linux/gpio.h>
  24 #include <linux/regulator/machine.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28
  29 #include "pxa320.h"
  30 #include "mxm8x10.h"
  31
  32 #include "generic.h"
  33
  34 /* IDE (PATA) Support */
  35 static struct pata_platform_info pata_platform_data = {
  36         .ioport_shift = 1
  37 };
  38
  39 static struct resource capc7117_ide_resources[] = {
  40         [0] = {
  41                .start = 0x11000020,
  42                .end = 0x1100003f,
  43                .flags = IORESOURCE_MEM
  44         },
  45         [1] = {
  46                .start = 0x1100001c,
  47                .end = 0x1100001c,
  48                .flags = IORESOURCE_MEM
  49         },
  50         [2] = {
  51                .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
  52                .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
  53                .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING
  54         }
  55 };
  56
  57 static struct platform_device capc7117_ide_device = {
  58         .name = "pata_platform",
  59         .num_resources = ARRAY_SIZE(capc7117_ide_resources),
  60         .resource = capc7117_ide_resources,
  61         .dev = {
  62                 .platform_data = &pata_platform_data,
  63                 .coherent_dma_mask = ~0         /* grumble */
  64         }
  65 };
  66
  67 static void __init capc7117_ide_init(void)
  68 {
  69         platform_device_register(&capc7117_ide_device);
  70 }
  71
  72 /* TI16C752 UART support */
  73 #define TI16C752_FLAGS          (UPF_BOOT_AUTOCONF | \
  74                                         UPF_IOREMAP | \
  75                                         UPF_BUGGY_UART | \
  76                                         UPF_SKIP_TEST)
  77 #define TI16C752_UARTCLK        (22118400)
  78 static struct plat_serial8250_port ti16c752_platform_data[] = {
  79         [0] = {
  80                .mapbase = 0x14000000,
  81                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO78)),
  82                .irqflags = IRQF_TRIGGER_RISING,
  83                .flags = TI16C752_FLAGS,
  84                .iotype = UPIO_MEM,
  85                .regshift = 1,
  86                .uartclk = TI16C752_UARTCLK
  87         },
  88         [1] = {
  89                .mapbase = 0x14000040,
  90                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO79)),
  91                .irqflags = IRQF_TRIGGER_RISING,
  92                .flags = TI16C752_FLAGS,
  93                .iotype = UPIO_MEM,
  94                .regshift = 1,
  95                .uartclk = TI16C752_UARTCLK
  96         },
  97         [2] = {
  98                .mapbase = 0x14000080,
  99                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO80)),
 100                .irqflags = IRQF_TRIGGER_RISING,
 101                .flags = TI16C752_FLAGS,
 102                .iotype = UPIO_MEM,
 103                .regshift = 1,
 104                .uartclk = TI16C752_UARTCLK
 105         },
 106         [3] = {
 107                .mapbase = 0x140000c0,
 108                .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO81)),
 109                .irqflags = IRQF_TRIGGER_RISING,
 110                .flags = TI16C752_FLAGS,
 111                .iotype = UPIO_MEM,
 112                .regshift = 1,
 113                .uartclk = TI16C752_UARTCLK
 114         },
 115         [4] = {
 116                /* end of array */
 117         }
 118 };
 119
 120 static struct platform_device ti16c752_device = {
 121         .name = "serial8250",
 122         .id = PLAT8250_DEV_PLATFORM,
 123         .dev = {
 124                 .platform_data = ti16c752_platform_data
 125         }
 126 };
 127
 128 static void __init capc7117_uarts_init(void)
 129 {
 130         platform_device_register(&ti16c752_device);
 131 }
 132
 133 static void __init capc7117_init(void)
 134 {
 135         /* Init CoM */
 136         mxm_8x10_barebones_init();
 137
 138         /* Init evaluation board peripherals */
 139         mxm_8x10_ac97_init();
 140         mxm_8x10_usb_host_init();
 141         mxm_8x10_mmc_init();
 142
 143         capc7117_uarts_init();
 144         capc7117_ide_init();
 145
 146         regulator_has_full_constraints();
 147 }
 148
 149 MACHINE_START(CAPC7117,
 150               "Embedian CAPC-7117 evaluation kit based on the MXM-8x10 CoM")
 151         .atag_offset = 0x100,
 152         .map_io = pxa3xx_map_io,
 153         .nr_irqs = PXA_NR_IRQS,
 154         .init_irq = pxa3xx_init_irq,
 155         .handle_irq = pxa3xx_handle_irq,
 156         .init_time      = pxa_timer_init,
 157         .init_machine = capc7117_init,
 158         .restart        = pxa_restart,
 159 MACHINE_END