1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* (C) Copyright 2010
* Texas Instruments Incorporated, <www.ti.com>
* Steve Sakoman <steve@sakoman.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/clocks.h>
#include <asm/arch/gpio.h>
#include "panda_mux_data.h"
#define PANDA_ULPI_PHY_TYPE_GPIO 182
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
"Board: OMAP4 Panda\n"
};
struct omap4_scrm_regs *const scrm = (struct omap4_scrm_regs *)0x4a30a000;
/**
* @brief board_init
*
* @return 0
*/
int board_init(void)
{
gpmc_init();
gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA;
gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
return 0;
}
int board_eth_init(bd_t *bis)
{
return 0;
}
/**
* @brief misc_init_r - Configure Panda board specific configurations
* such as power configurations, ethernet initialization as phase2 of
* boot sequence
*
* @return 0
*/
int misc_init_r(void)
{
int phy_type;
u32 auxclk, altclksrc;
/* EHCI is not supported on ES1.0 */
if (omap_revision() == OMAP4430_ES1_0)
return 0;
gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
if (phy_type == 1) {
/* ULPI PHY supplied by auxclk3 derived from sys_clk */
debug("ULPI PHY supplied by auxclk3\n");
auxclk = readl(&scrm->auxclk3);
/* Select sys_clk */
auxclk &= ~AUXCLK_SRCSELECT_MASK;
auxclk |= AUXCLK_SRCSELECT_SYS_CLK << AUXCLK_SRCSELECT_SHIFT;
/* Set the divisor to 2 */
auxclk &= ~AUXCLK_CLKDIV_MASK;
auxclk |= AUXCLK_CLKDIV_2 << AUXCLK_CLKDIV_SHIFT;
/* Request auxilary clock #3 */
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, &scrm->auxclk3);
} else {
/* ULPI PHY supplied by auxclk1 derived from PER dpll */
debug("ULPI PHY supplied by auxclk1\n");
auxclk = readl(&scrm->auxclk1);
/* Select per DPLL */
auxclk &= ~AUXCLK_SRCSELECT_MASK;
auxclk |= AUXCLK_SRCSELECT_PER_DPLL << AUXCLK_SRCSELECT_SHIFT;
/* Set the divisor to 16 */
auxclk &= ~AUXCLK_CLKDIV_MASK;
auxclk |= AUXCLK_CLKDIV_16 << AUXCLK_CLKDIV_SHIFT;
/* Request auxilary clock #3 */
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, &scrm->auxclk1);
}
altclksrc = readl(&scrm->altclksrc);
/* Activate alternate system clock supplier */
altclksrc &= ~ALTCLKSRC_MODE_MASK;
altclksrc |= ALTCLKSRC_MODE_ACTIVE;
/* enable clocks */
altclksrc |= ALTCLKSRC_ENABLE_INT_MASK | ALTCLKSRC_ENABLE_EXT_MASK;
writel(altclksrc, &scrm->altclksrc);
return 0;
}
void set_muxconf_regs_essential(void)
{
do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
sizeof(wkup_padconf_array_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() >= OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_WKUP,
wkup_padconf_array_essential_4460,
sizeof(wkup_padconf_array_essential_4460) /
sizeof(struct pad_conf_entry));
}
void set_muxconf_regs_non_essential(void)
{
do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
sizeof(core_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_CORE,
core_padconf_array_non_essential_4430,
sizeof(core_padconf_array_non_essential_4430) /
sizeof(struct pad_conf_entry));
else
do_set_mux(CONTROL_PADCONF_CORE,
core_padconf_array_non_essential_4460,
sizeof(core_padconf_array_non_essential_4460) /
sizeof(struct pad_conf_entry));
do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential,
sizeof(wkup_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_WKUP,
wkup_padconf_array_non_essential_4430,
sizeof(wkup_padconf_array_non_essential_4430) /
sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0);
return 0;
}
#endif
/*
* get_board_rev() - get board revision
*/
u32 get_board_rev(void)
{
return 0x20;
}
|
