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 
147