board/logicpd/am3517evm/am3517evm.c

   1 /*
   2  * am3517evm.c - board file for TI's AM3517 family of devices.
   3  *
   4  * Author: Vaibhav Hiremath <hvaibhav@ti.com>
   5  *
   6  * Based on ti/evm/evm.c
   7  *
   8  * Copyright (C) 2010
   9  * Texas Instruments Incorporated - http://www.ti.com/
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 #include <common.h>
  15 #include <asm/io.h>
  16 #include <asm/omap_musb.h>
  17 #include <asm/arch/am35x_def.h>
  18 #include <asm/arch/mem.h>
  19 #include <asm/arch/mux.h>
  20 #include <asm/arch/sys_proto.h>
  21 #include <asm/arch/mmc_host_def.h>
  22 #include <asm/arch/musb.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/errno.h>
  25 #include <linux/usb/ch9.h>
  26 #include <linux/usb/gadget.h>
  27 #include <linux/usb/musb.h>
  28 #include <i2c.h>
  29 #include <netdev.h>
  30 #include "am3517evm.h"
  31
  32 DECLARE_GLOBAL_DATA_PTR;
  33
  34 /*
  35  * Routine: board_init
  36  * Description: Early hardware init.
  37  */
  38 int board_init(void)
  39 {
  40         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  41         /* board id for Linux */
  42         gd->bd->bi_arch_number = MACH_TYPE_OMAP3517EVM;
  43         /* boot param addr */
  44         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  45
  46         return 0;
  47 }
  48
  49 #ifdef CONFIG_USB_MUSB_AM35X
  50 static struct musb_hdrc_config musb_config = {
  51         .multipoint     = 1,
  52         .dyn_fifo       = 1,
  53         .num_eps        = 16,
  54         .ram_bits       = 12,
  55 };
  56
  57 static struct omap_musb_board_data musb_board_data = {
  58         .set_phy_power          = am35x_musb_phy_power,
  59         .clear_irq              = am35x_musb_clear_irq,
  60         .reset                  = am35x_musb_reset,
  61 };
  62
  63 static struct musb_hdrc_platform_data musb_plat = {
  64 #if defined(CONFIG_MUSB_HOST)
  65         .mode           = MUSB_HOST,
  66 #elif defined(CONFIG_MUSB_GADGET)
  67         .mode           = MUSB_PERIPHERAL,
  68 #else
  69 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET"
  70 #endif
  71         .config         = &musb_config,
  72         .power          = 250,
  73         .platform_ops   = &am35x_ops,
  74         .board_data     = &musb_board_data,
  75 };
  76
  77 static void am3517_evm_musb_init(void)
  78 {
  79         /*
  80          * Set up USB clock/mode in the DEVCONF2 register.
  81          * USB2.0 PHY reference clock is 13 MHz
  82          */
  83         clrsetbits_le32(&am35x_scm_general_regs->devconf2,
  84                         CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
  85                         CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
  86                         CONF2_VBDTCTEN | CONF2_DATPOL);
  87
  88         musb_register(&musb_plat, &musb_board_data,
  89                         (void *)AM35XX_IPSS_USBOTGSS_BASE);
  90 }
  91 #else
  92 #define am3517_evm_musb_init() do {} while (0)
  93 #endif
  94
  95 /*
  96  * Routine: misc_init_r
  97  * Description: Init i2c, ethernet, etc... (done here so udelay works)
  98  */
  99 int misc_init_r(void)
 100 {
 101 #ifdef CONFIG_DRIVER_OMAP34XX_I2C
 102         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 103 #endif
 104
 105         dieid_num_r();
 106
 107         am3517_evm_musb_init();
 108
 109         return 0;
 110 }
 111
 112 /*
 113  * Routine: set_muxconf_regs
 114  * Description: Setting up the configuration Mux registers specific to the
 115  *              hardware. Many pins need to be moved from protect to primary
 116  *              mode.
 117  */
 118 void set_muxconf_regs(void)
 119 {
 120         MUX_AM3517EVM();
 121 }
 122
 123 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
 124 int board_mmc_init(bd_t *bis)
 125 {
 126         return omap_mmc_init(0, 0, 0, -1, -1);
 127 }
 128 #endif
 129
 130 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)
 131 int board_eth_init(bd_t *bis)
 132 {
 133         int rv, n = 0;
 134
 135         rv = cpu_eth_init(bis);
 136         if (rv > 0)
 137                 n += rv;
 138
 139         rv = usb_eth_initialize(bis);
 140         if (rv > 0)
 141                 n += rv;
 142
 143         return n;
 144 }
 145 #endif
 146