arch/arm/mach-ux500/cpu-db5500.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/platform_device.h>
   9 #include <linux/amba/bus.h>
  10 #include <linux/io.h>
  11 #include <linux/irq.h>
  12
  13 #include <asm/mach/map.h>
  14 #include <asm/pmu.h>
  15
  16 #include <plat/gpio.h>
  17
  18 #include <mach/hardware.h>
  19 #include <mach/devices.h>
  20 #include <mach/setup.h>
  21 #include <mach/irqs.h>
  22 #include <mach/usb.h>
  23
  24 #include "devices-db5500.h"
  25 #include "ste-dma40-db5500.h"
  26
  27 static struct map_desc u5500_uart_io_desc[] __initdata = {
  28         __IO_DEV_DESC(U5500_UART0_BASE, SZ_4K),
  29         __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
  30 };
  31
  32 static struct map_desc u5500_io_desc[] __initdata = {
  33         __IO_DEV_DESC(U5500_GIC_CPU_BASE, SZ_4K),
  34         __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
  35         __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
  36         __IO_DEV_DESC(U5500_TWD_BASE, SZ_4K),
  37         __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
  38         __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
  39         __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),
  40
  41         __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
  42         __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
  43         __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
  44         __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
  45         __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
  46         __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
  47 };
  48
  49 static struct resource db5500_pmu_resources[] = {
  50         [0] = {
  51                 .start          = IRQ_DB5500_PMU0,
  52                 .end            = IRQ_DB5500_PMU0,
  53                 .flags          = IORESOURCE_IRQ,
  54         },
  55         [1] = {
  56                 .start          = IRQ_DB5500_PMU1,
  57                 .end            = IRQ_DB5500_PMU1,
  58                 .flags          = IORESOURCE_IRQ,
  59         },
  60 };
  61
  62 static struct platform_device db5500_pmu_device = {
  63         .name                   = "arm-pmu",
  64         .id                     = ARM_PMU_DEVICE_CPU,
  65         .num_resources          = ARRAY_SIZE(db5500_pmu_resources),
  66         .resource               = db5500_pmu_resources,
  67 };
  68
  69 static struct resource mbox0_resources[] = {
  70         {
  71                 .name = "mbox_peer",
  72                 .start = U5500_MBOX0_PEER_START,
  73                 .end = U5500_MBOX0_PEER_END,
  74                 .flags = IORESOURCE_MEM,
  75         },
  76         {
  77                 .name = "mbox_local",
  78                 .start = U5500_MBOX0_LOCAL_START,
  79                 .end = U5500_MBOX0_LOCAL_END,
  80                 .flags = IORESOURCE_MEM,
  81         },
  82         {
  83                 .name = "mbox_irq",
  84                 .start = MBOX_PAIR0_VIRT_IRQ,
  85                 .end = MBOX_PAIR0_VIRT_IRQ,
  86                 .flags = IORESOURCE_IRQ,
  87         }
  88 };
  89
  90 static struct resource mbox1_resources[] = {
  91         {
  92                 .name = "mbox_peer",
  93                 .start = U5500_MBOX1_PEER_START,
  94                 .end = U5500_MBOX1_PEER_END,
  95                 .flags = IORESOURCE_MEM,
  96         },
  97         {
  98                 .name = "mbox_local",
  99                 .start = U5500_MBOX1_LOCAL_START,
 100                 .end = U5500_MBOX1_LOCAL_END,
 101                 .flags = IORESOURCE_MEM,
 102         },
 103         {
 104                 .name = "mbox_irq",
 105                 .start = MBOX_PAIR1_VIRT_IRQ,
 106                 .end = MBOX_PAIR1_VIRT_IRQ,
 107                 .flags = IORESOURCE_IRQ,
 108         }
 109 };
 110
 111 static struct resource mbox2_resources[] = {
 112         {
 113                 .name = "mbox_peer",
 114                 .start = U5500_MBOX2_PEER_START,
 115                 .end = U5500_MBOX2_PEER_END,
 116                 .flags = IORESOURCE_MEM,
 117         },
 118         {
 119                 .name = "mbox_local",
 120                 .start = U5500_MBOX2_LOCAL_START,
 121                 .end = U5500_MBOX2_LOCAL_END,
 122                 .flags = IORESOURCE_MEM,
 123         },
 124         {
 125                 .name = "mbox_irq",
 126                 .start = MBOX_PAIR2_VIRT_IRQ,
 127                 .end = MBOX_PAIR2_VIRT_IRQ,
 128                 .flags = IORESOURCE_IRQ,
 129         }
 130 };
 131
 132 static struct platform_device mbox0_device = {
 133         .id = 0,
 134         .name = "mbox",
 135         .resource = mbox0_resources,
 136         .num_resources = ARRAY_SIZE(mbox0_resources),
 137 };
 138
 139 static struct platform_device mbox1_device = {
 140         .id = 1,
 141         .name = "mbox",
 142         .resource = mbox1_resources,
 143         .num_resources = ARRAY_SIZE(mbox1_resources),
 144 };
 145
 146 static struct platform_device mbox2_device = {
 147         .id = 2,
 148         .name = "mbox",
 149         .resource = mbox2_resources,
 150         .num_resources = ARRAY_SIZE(mbox2_resources),
 151 };
 152
 153 static struct platform_device *db5500_platform_devs[] __initdata = {
 154         &db5500_pmu_device,
 155         &mbox0_device,
 156         &mbox1_device,
 157         &mbox2_device,
 158 };
 159
 160 static resource_size_t __initdata db5500_gpio_base[] = {
 161         U5500_GPIOBANK0_BASE,
 162         U5500_GPIOBANK1_BASE,
 163         U5500_GPIOBANK2_BASE,
 164         U5500_GPIOBANK3_BASE,
 165         U5500_GPIOBANK4_BASE,
 166         U5500_GPIOBANK5_BASE,
 167         U5500_GPIOBANK6_BASE,
 168         U5500_GPIOBANK7_BASE,
 169 };
 170
 171 static void __init db5500_add_gpios(void)
 172 {
 173         struct nmk_gpio_platform_data pdata = {
 174                 /* No custom data yet */
 175         };
 176
 177         dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
 178                          IRQ_DB5500_GPIO0, &pdata);
 179 }
 180
 181 void __init u5500_map_io(void)
 182 {
 183         /*
 184          * Map the UARTs early so that the DEBUG_LL stuff continues to work.
 185          */
 186         iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));
 187
 188         ux500_map_io();
 189
 190         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
 191
 192         _PRCMU_BASE = __io_address(U5500_PRCMU_BASE);
 193 }
 194
 195 static int usb_db5500_rx_dma_cfg[] = {
 196         DB5500_DMA_DEV4_USB_OTG_IEP_1_9,
 197         DB5500_DMA_DEV5_USB_OTG_IEP_2_10,
 198         DB5500_DMA_DEV6_USB_OTG_IEP_3_11,
 199         DB5500_DMA_DEV20_USB_OTG_IEP_4_12,
 200         DB5500_DMA_DEV21_USB_OTG_IEP_5_13,
 201         DB5500_DMA_DEV22_USB_OTG_IEP_6_14,
 202         DB5500_DMA_DEV23_USB_OTG_IEP_7_15,
 203         DB5500_DMA_DEV38_USB_OTG_IEP_8
 204 };
 205
 206 static int usb_db5500_tx_dma_cfg[] = {
 207         DB5500_DMA_DEV4_USB_OTG_OEP_1_9,
 208         DB5500_DMA_DEV5_USB_OTG_OEP_2_10,
 209         DB5500_DMA_DEV6_USB_OTG_OEP_3_11,
 210         DB5500_DMA_DEV20_USB_OTG_OEP_4_12,
 211         DB5500_DMA_DEV21_USB_OTG_OEP_5_13,
 212         DB5500_DMA_DEV22_USB_OTG_OEP_6_14,
 213         DB5500_DMA_DEV23_USB_OTG_OEP_7_15,
 214         DB5500_DMA_DEV38_USB_OTG_OEP_8
 215 };
 216
 217 void __init u5500_init_devices(void)
 218 {
 219         db5500_add_gpios();
 220         db5500_dma_init();
 221         db5500_add_rtc();
 222         db5500_add_usb(usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
 223
 224         platform_add_devices(db5500_platform_devs,
 225                              ARRAY_SIZE(db5500_platform_devs));
 226 }