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 	return omap_mmc_init(0, 0, 0, -1, -1);
139 }
140 #endif
141 
142 #if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)
143 int board_eth_init(bd_t *bis)
144 {
145 	int rv, n = 0;
146 
147 	rv = cpu_eth_init(bis);
148 	if (rv > 0)
149 		n += rv;
150 
151 	rv = usb_eth_initialize(bis);
152 	if (rv > 0)
153 		n += rv;
154 
155 	return n;
156 }
157 #endif
158 
159