arch/arm/mach-davinci/board-da850-evm.c

   1 /*
   2  * TI DA850/OMAP-L138 EVM board
   3  *
   4  * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
   5  *
   6  * Derived from: arch/arm/mach-davinci/board-da830-evm.c
   7  * Original Copyrights follow:
   8  *
   9  * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
  10  * the terms of the GNU General Public License version 2. This program
  11  * is licensed "as is" without any warranty of any kind, whether express
  12  * or implied.
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/module.h>
  16 #include <linux/init.h>
  17 #include <linux/console.h>
  18 #include <linux/i2c.h>
  19 #include <linux/i2c/at24.h>
  20
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23
  24 #include <mach/common.h>
  25 #include <mach/irqs.h>
  26 #include <mach/cp_intc.h>
  27 #include <mach/da8xx.h>
  28
  29 static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
  30         .bus_freq       = 100,  /* kHz */
  31         .bus_delay      = 0,    /* usec */
  32 };
  33
  34 static struct davinci_uart_config da850_evm_uart_config __initdata = {
  35         .enabled_uarts = 0x7,
  36 };
  37
  38 static __init void da850_evm_init(void)
  39 {
  40         int ret;
  41
  42         ret = da8xx_register_edma();
  43         if (ret)
  44                 pr_warning("da850_evm_init: edma registration failed: %d\n",
  45                                 ret);
  46
  47         ret = da8xx_pinmux_setup(da850_i2c0_pins);
  48         if (ret)
  49                 pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
  50                                 ret);
  51
  52         ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
  53         if (ret)
  54                 pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
  55                                 ret);
  56
  57         ret = da8xx_register_watchdog();
  58         if (ret)
  59                 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
  60                                 ret);
  61
  62         davinci_serial_init(&da850_evm_uart_config);
  63
  64         /*
  65          * shut down uart 0 and 1; they are not used on the board and
  66          * accessing them causes endless "too much work in irq53" messages
  67          * with arago fs
  68          */
  69         __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
  70         __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
  71 }
  72
  73 #ifdef CONFIG_SERIAL_8250_CONSOLE
  74 static int __init da850_evm_console_init(void)
  75 {
  76         return add_preferred_console("ttyS", 2, "115200");
  77 }
  78 console_initcall(da850_evm_console_init);
  79 #endif
  80
  81 static __init void da850_evm_irq_init(void)
  82 {
  83         struct davinci_soc_info *soc_info = &davinci_soc_info;
  84
  85         cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
  86                         soc_info->intc_irq_prios);
  87 }
  88
  89 static void __init da850_evm_map_io(void)
  90 {
  91         da850_init();
  92 }
  93
  94 MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
  95         .phys_io        = IO_PHYS,
  96         .io_pg_offst    = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
  97         .boot_params    = (DA8XX_DDR_BASE + 0x100),
  98         .map_io         = da850_evm_map_io,
  99         .init_irq       = da850_evm_irq_init,
 100         .timer          = &davinci_timer,
 101         .init_machine   = da850_evm_init,
 102 MACHINE_END