kernel/arch/arm/mach-imx/devices/platform-imx-ssi.c

   1 /*
   2  * Copyright (C) 2010 Pengutronix
   3  * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9 #include "../hardware.h"
  10 #include "devices-common.h"
  11
  12 #define imx_imx_ssi_data_entry(soc, _id, _hwid, _size)                  \
  13         [_id] = {                                                       \
  14                 .id = _id,                                              \
  15                 .iobase = soc ## _SSI ## _hwid ## _BASE_ADDR,           \
  16                 .iosize = _size,                                        \
  17                 .irq = soc ## _INT_SSI ## _hwid,                        \
  18                 .dmatx0 = soc ## _DMA_REQ_SSI ## _hwid ## _TX0,         \
  19                 .dmarx0 = soc ## _DMA_REQ_SSI ## _hwid ## _RX0,         \
  20                 .dmatx1 = soc ## _DMA_REQ_SSI ## _hwid ## _TX1,         \
  21                 .dmarx1 = soc ## _DMA_REQ_SSI ## _hwid ## _RX1,         \
  22         }
  23
  24 #ifdef CONFIG_SOC_IMX21
  25 const struct imx_imx_ssi_data imx21_imx_ssi_data[] __initconst = {
  26 #define imx21_imx_ssi_data_entry(_id, _hwid)                            \
  27         imx_imx_ssi_data_entry(MX21, _id, _hwid, SZ_4K)
  28         imx21_imx_ssi_data_entry(0, 1),
  29         imx21_imx_ssi_data_entry(1, 2),
  30 };
  31 #endif /* ifdef CONFIG_SOC_IMX21 */
  32
  33 #ifdef CONFIG_SOC_IMX27
  34 const struct imx_imx_ssi_data imx27_imx_ssi_data[] __initconst = {
  35 #define imx27_imx_ssi_data_entry(_id, _hwid)                            \
  36         imx_imx_ssi_data_entry(MX27, _id, _hwid, SZ_4K)
  37         imx27_imx_ssi_data_entry(0, 1),
  38         imx27_imx_ssi_data_entry(1, 2),
  39 };
  40 #endif /* ifdef CONFIG_SOC_IMX27 */
  41
  42 #ifdef CONFIG_SOC_IMX31
  43 const struct imx_imx_ssi_data imx31_imx_ssi_data[] __initconst = {
  44 #define imx31_imx_ssi_data_entry(_id, _hwid)                            \
  45         imx_imx_ssi_data_entry(MX31, _id, _hwid, SZ_4K)
  46         imx31_imx_ssi_data_entry(0, 1),
  47         imx31_imx_ssi_data_entry(1, 2),
  48 };
  49 #endif /* ifdef CONFIG_SOC_IMX31 */
  50
  51 #ifdef CONFIG_SOC_IMX35
  52 const struct imx_imx_ssi_data imx35_imx_ssi_data[] __initconst = {
  53 #define imx35_imx_ssi_data_entry(_id, _hwid)                            \
  54         imx_imx_ssi_data_entry(MX35, _id, _hwid, SZ_4K)
  55         imx35_imx_ssi_data_entry(0, 1),
  56         imx35_imx_ssi_data_entry(1, 2),
  57 };
  58 #endif /* ifdef CONFIG_SOC_IMX35 */
  59
  60 struct platform_device *__init imx_add_imx_ssi(
  61                 const struct imx_imx_ssi_data *data,
  62                 const struct imx_ssi_platform_data *pdata)
  63 {
  64         struct resource res[] = {
  65                 {
  66                         .start = data->iobase,
  67                         .end = data->iobase + data->iosize - 1,
  68                         .flags = IORESOURCE_MEM,
  69                 }, {
  70                         .start = data->irq,
  71                         .end = data->irq,
  72                         .flags = IORESOURCE_IRQ,
  73                 },
  74 #define DMARES(_name) {                                                 \
  75         .name = #_name,                                                 \
  76         .start = data->dma ## _name,                                    \
  77         .end = data->dma ## _name,                                      \
  78         .flags = IORESOURCE_DMA,                                        \
  79 }
  80                 DMARES(tx0),
  81                 DMARES(rx0),
  82                 DMARES(tx1),
  83                 DMARES(rx1),
  84         };
  85
  86         return imx_add_platform_device("imx-ssi", data->id,
  87                         res, ARRAY_SIZE(res),
  88                         pdata, sizeof(*pdata));
  89 }