arch/arm/mach-pnx4008/core.c

   1 /*
   2  * arch/arm/mach-pnx4008/core.c
   3  *
   4  * PNX4008 core startup code
   5  *
   6  * Authors: Vitaly Wool, Dmitry Chigirev,
   7  * Grigory Tolstolytkin, Dmitry Pervushin <source@mvista.com>
   8  *
   9  * Based on reference code received from Philips:
  10  * Copyright (C) 2003 Philips Semiconductors
  11  *
  12  * 2005 (c) MontaVista Software, Inc. This file is licensed under
  13  * the terms of the GNU General Public License version 2. This program
  14  * is licensed "as is" without any warranty of any kind, whether express
  15  * or implied.
  16  */
  17
  18 #include <linux/kernel.h>
  19 #include <linux/types.h>
  20 #include <linux/mm.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/list.h>
  23 #include <linux/init.h>
  24 #include <linux/ioport.h>
  25 #include <linux/serial_8250.h>
  26 #include <linux/device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/io.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/pgtable.h>
  34 #include <asm/page.h>
  35 #include <asm/system_misc.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/time.h>
  40
  41 #include <mach/irq.h>
  42 #include <mach/clock.h>
  43 #include <mach/dma.h>
  44
  45 struct resource spipnx_0_resources[] = {
  46         {
  47                 .start = PNX4008_SPI1_BASE,
  48                 .end = PNX4008_SPI1_BASE + SZ_4K,
  49                 .flags = IORESOURCE_MEM,
  50         }, {
  51                 .start = PER_SPI1_REC_XMIT,
  52                 .flags = IORESOURCE_DMA,
  53         }, {
  54                 .start = SPI1_INT,
  55                 .flags = IORESOURCE_IRQ,
  56         }, {
  57                 .flags = 0,
  58         },
  59 };
  60
  61 struct resource spipnx_1_resources[] = {
  62         {
  63                 .start = PNX4008_SPI2_BASE,
  64                 .end = PNX4008_SPI2_BASE + SZ_4K,
  65                 .flags = IORESOURCE_MEM,
  66         }, {
  67                 .start = PER_SPI2_REC_XMIT,
  68                 .flags = IORESOURCE_DMA,
  69         }, {
  70                 .start = SPI2_INT,
  71                 .flags = IORESOURCE_IRQ,
  72         }, {
  73                 .flags = 0,
  74         }
  75 };
  76
  77 static struct spi_board_info spi_board_info[] __initdata = {
  78         {
  79                 .modalias       = "m25p80",
  80                 .max_speed_hz   = 1000000,
  81                 .bus_num        = 1,
  82                 .chip_select    = 0,
  83         },
  84 };
  85
  86 static struct platform_device spipnx_1 = {
  87         .name = "spipnx",
  88         .id = 1,
  89         .num_resources = ARRAY_SIZE(spipnx_0_resources),
  90         .resource = spipnx_0_resources,
  91         .dev = {
  92                 .coherent_dma_mask = 0xFFFFFFFF,
  93                 },
  94 };
  95
  96 static struct platform_device spipnx_2 = {
  97         .name = "spipnx",
  98         .id = 2,
  99         .num_resources = ARRAY_SIZE(spipnx_1_resources),
 100         .resource = spipnx_1_resources,
 101         .dev = {
 102                 .coherent_dma_mask = 0xFFFFFFFF,
 103                 },
 104 };
 105
 106 static struct plat_serial8250_port platform_serial_ports[] = {
 107         {
 108                 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)),
 109                 .mapbase = (unsigned long)PNX4008_UART5_BASE,
 110                 .irq = IIR5_INT,
 111                 .uartclk = PNX4008_UART_CLK,
 112                 .regshift = 2,
 113                 .iotype = UPIO_MEM,
 114                 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
 115         },
 116         {
 117                 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)),
 118                 .mapbase = (unsigned long)PNX4008_UART3_BASE,
 119                 .irq = IIR3_INT,
 120                 .uartclk = PNX4008_UART_CLK,
 121                 .regshift = 2,
 122                 .iotype = UPIO_MEM,
 123                 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
 124          },
 125         {}
 126 };
 127
 128 static struct platform_device serial_device = {
 129         .name = "serial8250",
 130         .id = PLAT8250_DEV_PLATFORM,
 131         .dev = {
 132                 .platform_data = &platform_serial_ports,
 133         },
 134 };
 135
 136 static struct platform_device nand_flash_device = {
 137         .name = "pnx4008-flash",
 138         .id = -1,
 139         .dev = {
 140                 .coherent_dma_mask = 0xFFFFFFFF,
 141         },
 142 };
 143
 144 /* The dmamask must be set for OHCI to work */
 145 static u64 ohci_dmamask = ~(u32) 0;
 146
 147 static struct resource ohci_resources[] = {
 148         {
 149                 .start = IO_ADDRESS(PNX4008_USB_CONFIG_BASE),
 150                 .end = IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0x100),
 151                 .flags = IORESOURCE_MEM,
 152         }, {
 153                 .start = USB_HOST_INT,
 154                 .flags = IORESOURCE_IRQ,
 155         },
 156 };
 157
 158 static struct platform_device ohci_device = {
 159         .name = "pnx4008-usb-ohci",
 160         .id = -1,
 161         .dev = {
 162                 .dma_mask = &ohci_dmamask,
 163                 .coherent_dma_mask = 0xffffffff,
 164                 },
 165         .num_resources = ARRAY_SIZE(ohci_resources),
 166         .resource = ohci_resources,
 167 };
 168
 169 static struct platform_device sdum_device = {
 170         .name = "pnx4008-sdum",
 171         .id = 0,
 172         .dev = {
 173                 .coherent_dma_mask = 0xffffffff,
 174         },
 175 };
 176
 177 static struct platform_device rgbfb_device = {
 178         .name = "pnx4008-rgbfb",
 179         .id = 0,
 180         .dev = {
 181                 .coherent_dma_mask = 0xffffffff,
 182         }
 183 };
 184
 185 struct resource watchdog_resources[] = {
 186         {
 187                 .start = PNX4008_WDOG_BASE,
 188                 .end = PNX4008_WDOG_BASE + SZ_4K - 1,
 189                 .flags = IORESOURCE_MEM,
 190         },
 191 };
 192
 193 static struct platform_device watchdog_device = {
 194         .name = "pnx4008-watchdog",
 195         .id = -1,
 196         .num_resources = ARRAY_SIZE(watchdog_resources),
 197         .resource = watchdog_resources,
 198 };
 199
 200 static struct platform_device *devices[] __initdata = {
 201         &spipnx_1,
 202         &spipnx_2,
 203         &serial_device,
 204         &ohci_device,
 205         &nand_flash_device,
 206         &sdum_device,
 207         &rgbfb_device,
 208         &watchdog_device,
 209 };
 210
 211
 212 extern void pnx4008_uart_init(void);
 213
 214 static void __init pnx4008_init(void)
 215 {
 216         /*disable all START interrupt sources,
 217            and clear all START interrupt flags */
 218         __raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
 219         __raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
 220         __raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
 221         __raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
 222
 223         platform_add_devices(devices, ARRAY_SIZE(devices));
 224         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
 225         /* Switch on the UART clocks */
 226         pnx4008_uart_init();
 227 }
 228
 229 static struct map_desc pnx4008_io_desc[] __initdata = {
 230         {
 231                 .virtual        = IO_ADDRESS(PNX4008_IRAM_BASE),
 232                 .pfn            = __phys_to_pfn(PNX4008_IRAM_BASE),
 233                 .length         = SZ_64K,
 234                 .type           = MT_DEVICE,
 235         }, {
 236                 .virtual        = IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
 237                 .pfn            = __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
 238                 .length         = SZ_1M - SZ_128K,
 239                 .type           = MT_DEVICE,
 240         }, {
 241                 .virtual        = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
 242                 .pfn            = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
 243                 .length         = SZ_128K * 3,
 244                 .type           = MT_DEVICE,
 245         }, {
 246                 .virtual        = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
 247                 .pfn            = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
 248                 .length         = SZ_1M,
 249                 .type           = MT_DEVICE,
 250         }, {
 251                 .virtual        = IO_ADDRESS(PNX4008_AHB2FAB_BASE),
 252                 .pfn            = __phys_to_pfn(PNX4008_AHB2FAB_BASE),
 253                 .length         = SZ_1M,
 254                 .type           = MT_DEVICE,
 255         },
 256 };
 257
 258 void __init pnx4008_map_io(void)
 259 {
 260         iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
 261 }
 262
 263 static void pnx4008_restart(char mode, const char *cmd)
 264 {
 265         soft_restart(0);
 266 }
 267
 268 extern struct sys_timer pnx4008_timer;
 269
 270 MACHINE_START(PNX4008, "Philips PNX4008")
 271         /* Maintainer: MontaVista Software Inc. */
 272         .atag_offset            = 0x100,
 273         .map_io                 = pnx4008_map_io,
 274         .init_irq               = pnx4008_init_irq,
 275         .init_machine           = pnx4008_init,
 276         .timer                  = &pnx4008_timer,
 277         .restart                = pnx4008_restart,
 278 MACHINE_END