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 #define DA850_EVM_PHY_MASK              0x1
  30 #define DA850_EVM_MDIO_FREQUENCY        2200000 /* PHY bus frequency */
  31
  32 static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
  33         .bus_freq       = 100,  /* kHz */
  34         .bus_delay      = 0,    /* usec */
  35 };
  36
  37 static struct davinci_uart_config da850_evm_uart_config __initdata = {
  38         .enabled_uarts = 0x7,
  39 };
  40
  41 /* davinci da850 evm audio machine driver */
  42 static u8 da850_iis_serializer_direction[] = {
  43         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
  44         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
  45         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  TX_MODE,
  46         RX_MODE,        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
  47 };
  48
  49 static struct snd_platform_data da850_evm_snd_data = {
  50         .tx_dma_offset  = 0x2000,
  51         .rx_dma_offset  = 0x2000,
  52         .op_mode        = DAVINCI_MCASP_IIS_MODE,
  53         .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
  54         .tdm_slots      = 2,
  55         .serial_dir     = da850_iis_serializer_direction,
  56         .eventq_no      = EVENTQ_1,
  57         .version        = MCASP_VERSION_2,
  58         .txnumevt       = 1,
  59         .rxnumevt       = 1,
  60 };
  61
  62
  63 static __init void da850_evm_init(void)
  64 {
  65         struct davinci_soc_info *soc_info = &davinci_soc_info;
  66         int ret;
  67
  68         ret = da8xx_register_edma();
  69         if (ret)
  70                 pr_warning("da850_evm_init: edma registration failed: %d\n",
  71                                 ret);
  72
  73         ret = da8xx_pinmux_setup(da850_i2c0_pins);
  74         if (ret)
  75                 pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
  76                                 ret);
  77
  78         ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
  79         if (ret)
  80                 pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
  81                                 ret);
  82
  83         soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
  84         soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
  85         soc_info->emac_pdata->rmii_en = 0;
  86
  87         ret = da8xx_pinmux_setup(da850_cpgmac_pins);
  88         if (ret)
  89                 pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n",
  90                                 ret);
  91
  92         ret = da8xx_register_emac();
  93         if (ret)
  94                 pr_warning("da850_evm_init: emac registration failed: %d\n",
  95                                 ret);
  96
  97         ret = da8xx_register_watchdog();
  98         if (ret)
  99                 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
 100                                 ret);
 101
 102         davinci_serial_init(&da850_evm_uart_config);
 103
 104         /*
 105          * shut down uart 0 and 1; they are not used on the board and
 106          * accessing them causes endless "too much work in irq53" messages
 107          * with arago fs
 108          */
 109         __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
 110         __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
 111
 112         ret = da8xx_pinmux_setup(da850_mcasp_pins);
 113         if (ret)
 114                 pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
 115                                 ret);
 116
 117         da8xx_init_mcasp(0, &da850_evm_snd_data);
 118 }
 119
 120 #ifdef CONFIG_SERIAL_8250_CONSOLE
 121 static int __init da850_evm_console_init(void)
 122 {
 123         return add_preferred_console("ttyS", 2, "115200");
 124 }
 125 console_initcall(da850_evm_console_init);
 126 #endif
 127
 128 static __init void da850_evm_irq_init(void)
 129 {
 130         struct davinci_soc_info *soc_info = &davinci_soc_info;
 131
 132         cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
 133                         soc_info->intc_irq_prios);
 134 }
 135
 136 static void __init da850_evm_map_io(void)
 137 {
 138         da850_init();
 139 }
 140
 141 MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
 142         .phys_io        = IO_PHYS,
 143         .io_pg_offst    = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 144         .boot_params    = (DA8XX_DDR_BASE + 0x100),
 145         .map_io         = da850_evm_map_io,
 146         .init_irq       = da850_evm_irq_init,
 147         .timer          = &davinci_timer,
 148         .init_machine   = da850_evm_init,
 149 MACHINE_END