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 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25 26 #include <common.h> 27 #include <asm/io.h> 28 #include <asm/omap_musb.h> 29 #include <asm/arch/am35x_def.h> 30 #include <asm/arch/mem.h> 31 #include <asm/arch/mux.h> 32 #include <asm/arch/sys_proto.h> 33 #include <asm/arch/mmc_host_def.h> 34 #include <asm/arch/musb.h> 35 #include <asm/mach-types.h> 36 #include <asm/errno.h> 37 #include <linux/usb/ch9.h> 38 #include <linux/usb/gadget.h> 39 #include <linux/usb/musb.h> 40 #include <i2c.h> 41 #include <netdev.h> 42 #include "am3517evm.h" 43 44 DECLARE_GLOBAL_DATA_PTR; 45 46 /* 47 * Routine: board_init 48 * Description: Early hardware init. 49 */ 50 int board_init(void) 51 { 52 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 53 /* board id for Linux */ 54 gd->bd->bi_arch_number = MACH_TYPE_OMAP3517EVM; 55 /* boot param addr */ 56 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 57 58 return 0; 59 } 60 61 #ifdef CONFIG_USB_MUSB_AM35X 62 static struct musb_hdrc_config musb_config = { 63 .multipoint = 1, 64 .dyn_fifo = 1, 65 .num_eps = 16, 66 .ram_bits = 12, 67 }; 68 69 static struct omap_musb_board_data musb_board_data = { 70 .set_phy_power = am35x_musb_phy_power, 71 .clear_irq = am35x_musb_clear_irq, 72 .reset = am35x_musb_reset, 73 }; 74 75 static struct musb_hdrc_platform_data musb_plat = { 76 #if defined(CONFIG_MUSB_HOST) 77 .mode = MUSB_HOST, 78 #elif defined(CONFIG_MUSB_GADGET) 79 .mode = MUSB_PERIPHERAL, 80 #else 81 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET" 82 #endif 83 .config = &musb_config, 84 .power = 250, 85 .platform_ops = &am35x_ops, 86 .board_data = &musb_board_data, 87 }; 88 89 static void am3517_evm_musb_init(void) 90 { 91 /* 92 * Set up USB clock/mode in the DEVCONF2 register. 93 * USB2.0 PHY reference clock is 13 MHz 94 */ 95 clrsetbits_le32(&am35x_scm_general_regs->devconf2, 96 CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE, 97 CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | 98 CONF2_VBDTCTEN | CONF2_DATPOL); 99 100 musb_register(&musb_plat, &musb_board_data, 101 (void *)AM35XX_IPSS_USBOTGSS_BASE); 102 } 103 #else 104 #define am3517_evm_musb_init() do {} while (0) 105 #endif 106 107 /* 108 * Routine: misc_init_r 109 * Description: Init i2c, ethernet, etc... (done here so udelay works) 110 */ 111 int misc_init_r(void) 112 { 113 #ifdef CONFIG_DRIVER_OMAP34XX_I2C 114 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 115 #endif 116 117 dieid_num_r(); 118 119 am3517_evm_musb_init(); 120 121 return 0; 122 } 123 124 /* 125 * Routine: set_muxconf_regs 126 * Description: Setting up the configuration Mux registers specific to the 127 * hardware. Many pins need to be moved from protect to primary 128 * mode. 129 */ 130 void set_muxconf_regs(void) 131 { 132 MUX_AM3517EVM(); 133 } 134 135 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 136 int board_mmc_init(bd_t *bis) 137 { 138 omap_mmc_init(0, 0, 0); 139 return 0; 140 } 141 #endif 142 143 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET) 144 int board_eth_init(bd_t *bis) 145 { 146 int rv, n = 0; 147 148 rv = cpu_eth_init(bis); 149 if (rv > 0) 150 n += rv; 151 152 rv = usb_eth_initialize(bis); 153 if (rv > 0) 154 n += rv; 155 156 return n; 157 } 158 #endif 159 160