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         __IO_DEV_DESC(U5500_PRCMU_TCDM_BASE, SZ_4K),
  48 };
  49
  50 static struct resource db5500_pmu_resources[] = {
  51         [0] = {
  52                 .start          = IRQ_DB5500_PMU0,
  53                 .end            = IRQ_DB5500_PMU0,
  54                 .flags          = IORESOURCE_IRQ,
  55         },
  56         [1] = {
  57                 .start          = IRQ_DB5500_PMU1,
  58                 .end            = IRQ_DB5500_PMU1,
  59                 .flags          = IORESOURCE_IRQ,
  60         },
  61 };
  62
  63 static struct platform_device db5500_pmu_device = {
  64         .name                   = "arm-pmu",
  65         .id                     = ARM_PMU_DEVICE_CPU,
  66         .num_resources          = ARRAY_SIZE(db5500_pmu_resources),
  67         .resource               = db5500_pmu_resources,
  68 };
  69
  70 static struct resource mbox0_resources[] = {
  71         {
  72                 .name = "mbox_peer",
  73                 .start = U5500_MBOX0_PEER_START,
  74                 .end = U5500_MBOX0_PEER_END,
  75                 .flags = IORESOURCE_MEM,
  76         },
  77         {
  78                 .name = "mbox_local",
  79                 .start = U5500_MBOX0_LOCAL_START,
  80                 .end = U5500_MBOX0_LOCAL_END,
  81                 .flags = IORESOURCE_MEM,
  82         },
  83         {
  84                 .name = "mbox_irq",
  85                 .start = MBOX_PAIR0_VIRT_IRQ,
  86                 .end = MBOX_PAIR0_VIRT_IRQ,
  87                 .flags = IORESOURCE_IRQ,
  88         }
  89 };
  90
  91 static struct resource mbox1_resources[] = {
  92         {
  93                 .name = "mbox_peer",
  94                 .start = U5500_MBOX1_PEER_START,
  95                 .end = U5500_MBOX1_PEER_END,
  96                 .flags = IORESOURCE_MEM,
  97         },
  98         {
  99                 .name = "mbox_local",
 100                 .start = U5500_MBOX1_LOCAL_START,
 101                 .end = U5500_MBOX1_LOCAL_END,
 102                 .flags = IORESOURCE_MEM,
 103         },
 104         {
 105                 .name = "mbox_irq",
 106                 .start = MBOX_PAIR1_VIRT_IRQ,
 107                 .end = MBOX_PAIR1_VIRT_IRQ,
 108                 .flags = IORESOURCE_IRQ,
 109         }
 110 };
 111
 112 static struct resource mbox2_resources[] = {
 113         {
 114                 .name = "mbox_peer",
 115                 .start = U5500_MBOX2_PEER_START,
 116                 .end = U5500_MBOX2_PEER_END,
 117                 .flags = IORESOURCE_MEM,
 118         },
 119         {
 120                 .name = "mbox_local",
 121                 .start = U5500_MBOX2_LOCAL_START,
 122                 .end = U5500_MBOX2_LOCAL_END,
 123                 .flags = IORESOURCE_MEM,
 124         },
 125         {
 126                 .name = "mbox_irq",
 127                 .start = MBOX_PAIR2_VIRT_IRQ,
 128                 .end = MBOX_PAIR2_VIRT_IRQ,
 129                 .flags = IORESOURCE_IRQ,
 130         }
 131 };
 132
 133 static struct platform_device mbox0_device = {
 134         .id = 0,
 135         .name = "mbox",
 136         .resource = mbox0_resources,
 137         .num_resources = ARRAY_SIZE(mbox0_resources),
 138 };
 139
 140 static struct platform_device mbox1_device = {
 141         .id = 1,
 142         .name = "mbox",
 143         .resource = mbox1_resources,
 144         .num_resources = ARRAY_SIZE(mbox1_resources),
 145 };
 146
 147 static struct platform_device mbox2_device = {
 148         .id = 2,
 149         .name = "mbox",
 150         .resource = mbox2_resources,
 151         .num_resources = ARRAY_SIZE(mbox2_resources),
 152 };
 153
 154 static struct platform_device *db5500_platform_devs[] __initdata = {
 155         &db5500_pmu_device,
 156         &mbox0_device,
 157         &mbox1_device,
 158         &mbox2_device,
 159 };
 160
 161 static resource_size_t __initdata db5500_gpio_base[] = {
 162         U5500_GPIOBANK0_BASE,
 163         U5500_GPIOBANK1_BASE,
 164         U5500_GPIOBANK2_BASE,
 165         U5500_GPIOBANK3_BASE,
 166         U5500_GPIOBANK4_BASE,
 167         U5500_GPIOBANK5_BASE,
 168         U5500_GPIOBANK6_BASE,
 169         U5500_GPIOBANK7_BASE,
 170 };
 171
 172 static void __init db5500_add_gpios(void)
 173 {
 174         struct nmk_gpio_platform_data pdata = {
 175                 /* No custom data yet */
 176         };
 177
 178         dbx500_add_gpios(ARRAY_AND_SIZE(db5500_gpio_base),
 179                          IRQ_DB5500_GPIO0, &pdata);
 180 }
 181
 182 void __init u5500_map_io(void)
 183 {
 184         /*
 185          * Map the UARTs early so that the DEBUG_LL stuff continues to work.
 186          */
 187         iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));
 188
 189         ux500_map_io();
 190
 191         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
 192
 193         _PRCMU_BASE = __io_address(U5500_PRCMU_BASE);
 194 }
 195
 196 static int usb_db5500_rx_dma_cfg[] = {
 197         DB5500_DMA_DEV4_USB_OTG_IEP_1_9,
 198         DB5500_DMA_DEV5_USB_OTG_IEP_2_10,
 199         DB5500_DMA_DEV6_USB_OTG_IEP_3_11,
 200         DB5500_DMA_DEV20_USB_OTG_IEP_4_12,
 201         DB5500_DMA_DEV21_USB_OTG_IEP_5_13,
 202         DB5500_DMA_DEV22_USB_OTG_IEP_6_14,
 203         DB5500_DMA_DEV23_USB_OTG_IEP_7_15,
 204         DB5500_DMA_DEV38_USB_OTG_IEP_8
 205 };
 206
 207 static int usb_db5500_tx_dma_cfg[] = {
 208         DB5500_DMA_DEV4_USB_OTG_OEP_1_9,
 209         DB5500_DMA_DEV5_USB_OTG_OEP_2_10,
 210         DB5500_DMA_DEV6_USB_OTG_OEP_3_11,
 211         DB5500_DMA_DEV20_USB_OTG_OEP_4_12,
 212         DB5500_DMA_DEV21_USB_OTG_OEP_5_13,
 213         DB5500_DMA_DEV22_USB_OTG_OEP_6_14,
 214         DB5500_DMA_DEV23_USB_OTG_OEP_7_15,
 215         DB5500_DMA_DEV38_USB_OTG_OEP_8
 216 };
 217
 218 void __init u5500_init_devices(void)
 219 {
 220         db5500_add_gpios();
 221         db5500_dma_init();
 222         db5500_add_rtc();
 223         db5500_add_usb(usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
 224
 225         platform_add_devices(db5500_platform_devs,
 226                              ARRAY_SIZE(db5500_platform_devs));
 227 }