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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
// SPDX-License-Identifier: GPL-2.0+
/*
* board.c
*
* Board functions for Bosch Guardian
*
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
* Copyright (C) 2018 Robert Bosch Power Tools GmbH
*/
#include <common.h>
#include <cpsw.h>
#include <dm.h>
#include <env.h>
#include <env_internal.h>
#include <errno.h>
#include <i2c.h>
#include <init.h>
#include <led.h>
#include <miiphy.h>
#include <panel.h>
#include <asm/global_data.h>
#include <power/tps65217.h>
#include <power/tps65910.h>
#include <spl.h>
#include <watchdog.h>
#include <asm/arch/clock.h>
#include <asm/arch/cpu.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mem.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/omap.h>
#include <asm/arch/sys_proto.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
static const struct ddr_data ddr3_data = {
.datardsratio0 = MT41K128M16JT125K_RD_DQS,
.datawdsratio0 = MT41K128M16JT125K_WR_DQS,
.datafwsratio0 = MT41K128M16JT125K_PHY_FIFO_WE,
.datawrsratio0 = MT41K128M16JT125K_PHY_WR_DATA,
};
static const struct cmd_control ddr3_cmd_ctrl_data = {
.cmd0csratio = MT41K128M16JT125K_RATIO,
.cmd0iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
.cmd1csratio = MT41K128M16JT125K_RATIO,
.cmd1iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
.cmd2csratio = MT41K128M16JT125K_RATIO,
.cmd2iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
};
static struct emif_regs ddr3_emif_reg_data = {
.sdram_config = MT41K128M16JT125K_EMIF_SDCFG,
.ref_ctrl = MT41K128M16JT125K_EMIF_SDREF,
.sdram_tim1 = MT41K128M16JT125K_EMIF_TIM1,
.sdram_tim2 = MT41K128M16JT125K_EMIF_TIM2,
.sdram_tim3 = MT41K128M16JT125K_EMIF_TIM3,
.zq_config = MT41K128M16JT125K_ZQ_CFG,
.emif_ddr_phy_ctlr_1 = MT41K128M16JT125K_EMIF_READ_LATENCY,
};
#define OSC (V_OSCK / 1000000)
const struct dpll_params dpll_ddr = {
400, OSC - 1, 1, -1, -1, -1, -1};
void am33xx_spl_board_init(void)
{
int mpu_vdd;
int usb_cur_lim;
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
if (i2c_probe(TPS65217_CHIP_PM))
return;
/*
* Increase USB current limit to 1300mA or 1800mA and set
* the MPU voltage controller as needed.
*/
if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
} else {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
}
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_POWER_PATH,
usb_cur_lim,
TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("tps65217_reg_write failure\n");
/* Set DCDC3 (CORE) voltage to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set DCDC2 (MPU) voltage */
if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
puts("tps65217_voltage_update failure\n");
return;
}
/*
* Set LDO3 to 1.8V and LDO4 to 3.3V
*/
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
const struct dpll_params *get_dpll_ddr_params(void)
{
enable_i2c0_pin_mux();
i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
return &dpll_ddr;
}
void set_uart_mux_conf(void)
{
enable_uart0_pin_mux();
}
void set_mux_conf_regs(void)
{
enable_board_pin_mux();
}
const struct ctrl_ioregs ioregs = {
.cm0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
.cm1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
.cm2ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
.dt0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
.dt1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
};
void sdram_init(void)
{
config_ddr(400, &ioregs,
&ddr3_data,
&ddr3_cmd_ctrl_data,
&ddr3_emif_reg_data, 0);
}
#endif
int board_init(void)
{
save_omap_boot_params();
#if defined(CONFIG_HW_WATCHDOG)
hw_watchdog_init();
#endif
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_MTD_RAW_NAND
gpmc_init();
#endif
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
static void set_bootmode_env(void)
{
char *boot_device_name = NULL;
char *boot_mode_gpio = "gpio@44e07000_14";
int ret;
int value;
struct gpio_desc boot_mode_desc;
switch (gd->arch.omap_boot_device) {
case BOOT_DEVICE_NAND:
boot_device_name = "nand";
break;
case BOOT_DEVICE_USBETH:
boot_device_name = "usbeth";
break;
default:
break;
}
if (boot_device_name)
env_set("boot_device", boot_device_name);
ret = dm_gpio_lookup_name(boot_mode_gpio, &boot_mode_desc);
if (ret) {
printf("%s is not found\n", boot_mode_gpio);
goto err;
}
ret = dm_gpio_request(&boot_mode_desc, "setup_bootmode_env");
if (ret && ret != -EBUSY) {
printf("requesting gpio: %s failed\n", boot_mode_gpio);
goto err;
}
value = dm_gpio_get_value(&boot_mode_desc);
value ? env_set("swi_status", "0") : env_set("swi_status", "1");
return;
err:
env_set("swi_status", "err");
}
int board_late_init(void)
{
#ifdef CONFIG_LED_GPIO
led_default_state();
#endif
set_bootmode_env();
return 0;
}
#endif /* CONFIG_BOARD_LATE_INIT */
|
