arch/arm/mach-ux500/devices-db8500.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   5  * License terms: GNU General Public License (GPL) version 2
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/io.h>
  12 #include <linux/gpio.h>
  13 #include <linux/amba/bus.h>
  14
  15 #include <plat/ste_dma40.h>
  16
  17 #include <mach/hardware.h>
  18 #include <mach/setup.h>
  19
  20 #include "ste-dma40-db8500.h"
  21
  22 static struct nmk_gpio_platform_data u8500_gpio_data[] = {
  23         GPIO_DATA("GPIO-0-31", 0),
  24         GPIO_DATA("GPIO-32-63", 32), /* 37..63 not routed to pin */
  25         GPIO_DATA("GPIO-64-95", 64),
  26         GPIO_DATA("GPIO-96-127", 96), /* 98..127 not routed to pin */
  27         GPIO_DATA("GPIO-128-159", 128),
  28         GPIO_DATA("GPIO-160-191", 160), /* 172..191 not routed to pin */
  29         GPIO_DATA("GPIO-192-223", 192),
  30         GPIO_DATA("GPIO-224-255", 224), /* 231..255 not routed to pin */
  31         GPIO_DATA("GPIO-256-288", 256), /* 268..288 not routed to pin */
  32 };
  33
  34 static struct resource u8500_gpio_resources[] = {
  35         GPIO_RESOURCE(0),
  36         GPIO_RESOURCE(1),
  37         GPIO_RESOURCE(2),
  38         GPIO_RESOURCE(3),
  39         GPIO_RESOURCE(4),
  40         GPIO_RESOURCE(5),
  41         GPIO_RESOURCE(6),
  42         GPIO_RESOURCE(7),
  43         GPIO_RESOURCE(8),
  44 };
  45
  46 struct platform_device u8500_gpio_devs[] = {
  47         GPIO_DEVICE(0),
  48         GPIO_DEVICE(1),
  49         GPIO_DEVICE(2),
  50         GPIO_DEVICE(3),
  51         GPIO_DEVICE(4),
  52         GPIO_DEVICE(5),
  53         GPIO_DEVICE(6),
  54         GPIO_DEVICE(7),
  55         GPIO_DEVICE(8),
  56 };
  57
  58 static struct resource dma40_resources[] = {
  59         [0] = {
  60                 .start = U8500_DMA_BASE,
  61                 .end   = U8500_DMA_BASE + SZ_4K - 1,
  62                 .flags = IORESOURCE_MEM,
  63                 .name  = "base",
  64         },
  65         [1] = {
  66                 .start = U8500_DMA_LCPA_BASE,
  67                 .end   = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
  68                 .flags = IORESOURCE_MEM,
  69                 .name  = "lcpa",
  70         },
  71         [2] = {
  72                 .start = IRQ_DB8500_DMA,
  73                 .end   = IRQ_DB8500_DMA,
  74                 .flags = IORESOURCE_IRQ,
  75         }
  76 };
  77
  78 /* Default configuration for physcial memcpy */
  79 struct stedma40_chan_cfg dma40_memcpy_conf_phy = {
  80         .mode = STEDMA40_MODE_PHYSICAL,
  81         .dir = STEDMA40_MEM_TO_MEM,
  82
  83         .src_info.data_width = STEDMA40_BYTE_WIDTH,
  84         .src_info.psize = STEDMA40_PSIZE_PHY_1,
  85         .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
  86
  87         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
  88         .dst_info.psize = STEDMA40_PSIZE_PHY_1,
  89         .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
  90 };
  91 /* Default configuration for logical memcpy */
  92 struct stedma40_chan_cfg dma40_memcpy_conf_log = {
  93         .dir = STEDMA40_MEM_TO_MEM,
  94
  95         .src_info.data_width = STEDMA40_BYTE_WIDTH,
  96         .src_info.psize = STEDMA40_PSIZE_LOG_1,
  97         .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
  98
  99         .dst_info.data_width = STEDMA40_BYTE_WIDTH,
 100         .dst_info.psize = STEDMA40_PSIZE_LOG_1,
 101         .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
 102 };
 103
 104 /*
 105  * Mapping between destination event lines and physical device address.
 106  * The event line is tied to a device and therefor the address is constant.
 107  */
 108 static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV];
 109
 110 /* Mapping between source event lines and physical device address */
 111 static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV];
 112
 113 /* Reserved event lines for memcpy only */
 114 static int dma40_memcpy_event[] = {
 115         DB8500_DMA_MEMCPY_TX_0,
 116         DB8500_DMA_MEMCPY_TX_1,
 117         DB8500_DMA_MEMCPY_TX_2,
 118         DB8500_DMA_MEMCPY_TX_3,
 119         DB8500_DMA_MEMCPY_TX_4,
 120         DB8500_DMA_MEMCPY_TX_5,
 121 };
 122
 123 static struct stedma40_platform_data dma40_plat_data = {
 124         .dev_len = DB8500_DMA_NR_DEV,
 125         .dev_rx = dma40_rx_map,
 126         .dev_tx = dma40_tx_map,
 127         .memcpy = dma40_memcpy_event,
 128         .memcpy_len = ARRAY_SIZE(dma40_memcpy_event),
 129         .memcpy_conf_phy = &dma40_memcpy_conf_phy,
 130         .memcpy_conf_log = &dma40_memcpy_conf_log,
 131         .disabled_channels = {-1},
 132 };
 133
 134 struct platform_device u8500_dma40_device = {
 135         .dev = {
 136                 .platform_data = &dma40_plat_data,
 137         },
 138         .name = "dma40",
 139         .id = 0,
 140         .num_resources = ARRAY_SIZE(dma40_resources),
 141         .resource = dma40_resources
 142 };
 143
 144 void dma40_u8500ed_fixup(void)
 145 {
 146         dma40_plat_data.memcpy = NULL;
 147         dma40_plat_data.memcpy_len = 0;
 148         dma40_resources[0].start = U8500_DMA_BASE_ED;
 149         dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1;
 150         dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED;
 151         dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1;
 152 }
 153
 154 struct resource keypad_resources[] = {
 155         [0] = {
 156                 .start = U8500_SKE_BASE,
 157                 .end = U8500_SKE_BASE + SZ_4K - 1,
 158                 .flags = IORESOURCE_MEM,
 159         },
 160         [1] = {
 161                 .start = IRQ_DB8500_KB,
 162                 .end = IRQ_DB8500_KB,
 163                 .flags = IORESOURCE_IRQ,
 164         },
 165 };
 166
 167 struct platform_device ux500_ske_keypad_device = {
 168         .name = "nmk-ske-keypad",
 169         .id = -1,
 170         .num_resources = ARRAY_SIZE(keypad_resources),
 171         .resource = keypad_resources,
 172 };