1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * am3517evm.c - board file for TI's AM3517 family of devices.
4 *
5 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
6 *
7 * Based on ti/evm/evm.c
8 *
9 * Copyright (C) 2010
10 * Texas Instruments Incorporated - https://www.ti.com/
11 */
12
13#include <common.h>
14#include <dm.h>
15#include <init.h>
16#include <net.h>
17#include <ns16550.h>
18#include <serial.h>
19#include <asm/global_data.h>
20#include <asm/io.h>
21#include <asm/omap_musb.h>
22#include <asm/arch/am35x_def.h>
23#include <asm/arch/mem.h>
24#include <asm/arch/mux.h>
25#include <asm/arch/sys_proto.h>
26#include <asm/arch/mmc_host_def.h>
27#include <asm/arch/musb.h>
28#include <asm/mach-types.h>
29#include <linux/errno.h>
30#include <asm/gpio.h>
31#include <linux/usb/ch9.h>
32#include <linux/usb/gadget.h>
33#include <linux/usb/musb.h>
34#include <i2c.h>
35#include "am3517evm.h"
36
37DECLARE_GLOBAL_DATA_PTR;
38
39#define AM3517_IP_SW_RESET	0x48002598
40#define CPGMACSS_SW_RST		(1 << 1)
41#define PHY_GPIO		30
42
43#if defined(CONFIG_SPL_BUILD)
44#if defined(CONFIG_SPL_OS_BOOT)
45int spl_start_uboot(void)
46{
47	/* break into full u-boot on 'c' */
48	return serial_tstc() && serial_getc() == 'c';
49}
50#endif
51#endif
52
53/*
54 * Routine: board_init
55 * Description: Early hardware init.
56 */
57int board_init(void)
58{
59	gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
60	/* board id for Linux */
61	gd->bd->bi_arch_number = MACH_TYPE_OMAP3517EVM;
62	/* boot param addr */
63	gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
64
65	return 0;
66}
67
68#ifdef CONFIG_USB_MUSB_AM35X
69static struct musb_hdrc_config musb_config = {
70	.multipoint     = 1,
71	.dyn_fifo       = 1,
72	.num_eps        = 16,
73	.ram_bits       = 12,
74};
75
76static struct omap_musb_board_data musb_board_data = {
77	.set_phy_power		= am35x_musb_phy_power,
78	.clear_irq		= am35x_musb_clear_irq,
79	.reset			= am35x_musb_reset,
80};
81
82static struct musb_hdrc_platform_data musb_plat = {
83#if defined(CONFIG_USB_MUSB_HOST)
84	.mode           = MUSB_HOST,
85#elif defined(CONFIG_USB_MUSB_GADGET)
86	.mode		= MUSB_PERIPHERAL,
87#else
88#error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
89#endif
90	.config         = &musb_config,
91	.power          = 250,
92	.platform_ops	= &am35x_ops,
93	.board_data	= &musb_board_data,
94};
95
96static void am3517_evm_musb_init(void)
97{
98	/*
99	 * Set up USB clock/mode in the DEVCONF2 register.
100	 * USB2.0 PHY reference clock is 13 MHz
101	 */
102	clrsetbits_le32(&am35x_scm_general_regs->devconf2,
103			CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
104			CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
105			CONF2_VBDTCTEN | CONF2_DATPOL);
106
107	musb_register(&musb_plat, &musb_board_data,
108			(void *)AM35XX_IPSS_USBOTGSS_BASE);
109}
110#else
111#define am3517_evm_musb_init() do {} while (0)
112#endif
113
114/*
115 * Routine: misc_init_r
116 * Description: Init i2c, ethernet, etc... (done here so udelay works)
117 */
118int misc_init_r(void)
119{
120	omap_die_id_display();
121
122	am3517_evm_musb_init();
123
124	return 0;
125}
126
127/*
128 * Routine: set_muxconf_regs
129 * Description: Setting up the configuration Mux registers specific to the
130 *		hardware. Many pins need to be moved from protect to primary
131 *		mode.
132 */
133void set_muxconf_regs(void)
134{
135	MUX_AM3517EVM();
136}
137
138#if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)
139int board_eth_init(struct bd_info *bis)
140{
141	int rv, n = 0;
142
143	rv = cpu_eth_init(bis);
144	if (rv > 0)
145		n += rv;
146
147	rv = usb_eth_initialize(bis);
148	if (rv > 0)
149		n += rv;
150
151	return n;
152}
153#endif
154