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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2016-2018 Toradex, Inc.
*/
#include <common.h>
#include <dm.h>
#include <env.h>
#include <init.h>
#include <log.h>
#include <asm/arch-tegra/ap.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
#include <env_internal.h>
#include <pci_tegra.h>
#include <linux/delay.h>
#include <power/as3722.h>
#include <power/pmic.h>
#include "../common/tdx-common.h"
#include "pinmux-config-apalis-tk1.h"
#define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
#define LAN_RESET_N TEGRA_GPIO(S, 2)
#define FAN_EN TEGRA_GPIO(DD, 2)
#define LAN_WAKE_N TEGRA_GPIO(O, 5)
#ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
#define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
#define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
#endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
#define VCC_USBH TEGRA_GPIO(T, 6)
#define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
#define VCC_USBO1 TEGRA_GPIO(T, 5)
#define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
int arch_misc_init(void)
{
if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
NVBOOTTYPE_RECOVERY) {
printf("USB recovery mode, attempting to boot Toradex Easy "
"Installer\n");
env_set("bootdelay", "-2");
env_set("defargs", "pcie_aspm=off user_debug=30");
env_set("fdt_high", "");
env_set("initrd_high", "");
env_set("setup", "env set setupargs igb_mac=${ethaddr} "
"consoleblank=0 no_console_suspend=1 "
"console=${console},${baudrate}n8 ${memargs}");
env_set("teziargs", "rootfstype=squashfs root=/dev/ram quiet "
"autoinstall");
env_set("vidargs", "video=HDMI-A-1:640x480-16@60D");
env_set("bootcmd", "run setup; env set bootargs ${defargs} "
"${setupargs} ${vidargs} ${teziargs}; bootm 0x80208000"
"#config@${soc}-${fdt_module}-${fdt_board}.dtb");
}
/* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
gpio_direction_input(TEGRA_GPIO(V, 0));
if (gpio_get_value(TEGRA_GPIO(V, 0))) {
/*
* if using the default device tree for new V1.2 and later HW,
* use version for older V1.0 and V1.1 HW
*/
char *fdt_env = env_get("fdt_module");
if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
env_set("fdt_module", FDT_MODULE_V1_0);
printf("patching fdt_module to " FDT_MODULE_V1_0
" for older V1.0 and V1.1 HW\n");
#ifndef CONFIG_ENV_IS_NOWHERE
env_save();
#endif
}
/* activate USB power enable GPIOs */
gpio_request(VCC_USBH_V1_0, "VCC_USBH");
gpio_direction_output(VCC_USBH_V1_0, 1);
gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
gpio_direction_output(VCC_USBO1_V1_0, 1);
} else {
/* activate USB power enable GPIOs */
gpio_request(VCC_USBH, "VCC_USBH");
gpio_direction_output(VCC_USBH, 1);
gpio_request(VCC_USBO1, "VCC_USBO1");
gpio_direction_output(VCC_USBO1, 1);
}
return 0;
}
int checkboard(void)
{
puts("Model: Toradex Apalis TK1 2GB\n");
return 0;
}
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
return ft_common_board_setup(blob, bd);
}
#endif
/*
* Routine: pinmux_init
* Description: Do individual peripheral pinmux configs
*/
void pinmux_init(void)
{
pinmux_clear_tristate_input_clamping();
gpio_config_table(apalis_tk1_gpio_inits,
ARRAY_SIZE(apalis_tk1_gpio_inits));
pinmux_config_pingrp_table(apalis_tk1_pingrps,
ARRAY_SIZE(apalis_tk1_pingrps));
pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
ARRAY_SIZE(apalis_tk1_drvgrps));
}
#ifdef CONFIG_PCI_TEGRA
/* TODO: Convert to driver model */
static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
{
int err;
if (sd > 6)
return -EINVAL;
err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
if (err) {
pr_err("failed to update SD control register: %d", err);
return err;
}
return 0;
}
/* TODO: Convert to driver model */
static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
{
int err;
u8 ctrl_reg = AS3722_LDO_CONTROL0;
if (ldo > 11)
return -EINVAL;
if (ldo > 7) {
ctrl_reg = AS3722_LDO_CONTROL1;
ldo -= 8;
}
err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
if (err) {
pr_err("failed to update LDO control register: %d", err);
return err;
}
return 0;
}
int tegra_pcie_board_init(void)
{
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_PMIC,
DM_DRIVER_GET(pmic_as3722), &dev);
if (ret) {
pr_err("failed to find AS3722 PMIC: %d\n", ret);
return ret;
}
ret = as3722_sd_enable(dev, 4);
if (ret < 0) {
pr_err("failed to enable SD4: %d\n", ret);
return ret;
}
ret = as3722_sd_set_voltage(dev, 4, 0x24);
if (ret < 0) {
pr_err("failed to set SD4 voltage: %d\n", ret);
return ret;
}
gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
gpio_request(LAN_RESET_N, "LAN_RESET_N");
gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
#ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
gpio_request(PEX_PERST_N, "PEX_PERST_N");
gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
#endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
return 0;
}
void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
{
int index = tegra_pcie_port_index_of_port(port);
if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_PMIC,
DM_DRIVER_GET(pmic_as3722),
&dev);
if (ret) {
debug("%s: Failed to find PMIC\n", __func__);
return;
}
/* Reset I210 Gigabit Ethernet Controller */
gpio_direction_output(LAN_RESET_N, 0);
/*
* Make sure we don't get any back feeding from DEV_OFF_N resp.
* LAN_WAKE_N
*/
gpio_direction_output(LAN_DEV_OFF_N, 0);
gpio_direction_output(LAN_WAKE_N, 0);
/* Make sure LDO9 and LDO10 are initially enabled @ 0V */
ret = as3722_ldo_enable(dev, 9);
if (ret < 0) {
pr_err("failed to enable LDO9: %d\n", ret);
return;
}
ret = as3722_ldo_enable(dev, 10);
if (ret < 0) {
pr_err("failed to enable LDO10: %d\n", ret);
return;
}
ret = as3722_ldo_set_voltage(dev, 9, 0x80);
if (ret < 0) {
pr_err("failed to set LDO9 voltage: %d\n", ret);
return;
}
ret = as3722_ldo_set_voltage(dev, 10, 0x80);
if (ret < 0) {
pr_err("failed to set LDO10 voltage: %d\n", ret);
return;
}
/* Make sure controller gets enabled by disabling DEV_OFF_N */
gpio_set_value(LAN_DEV_OFF_N, 1);
/*
* Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
* V1.0A and sample V1.0B and newer modules
*/
ret = as3722_ldo_set_voltage(dev, 9, 0xff);
if (ret < 0) {
pr_err("failed to set LDO9 voltage: %d\n", ret);
return;
}
ret = as3722_ldo_set_voltage(dev, 10, 0xff);
if (ret < 0) {
pr_err("failed to set LDO10 voltage: %d\n", ret);
return;
}
/*
* Must be asserted for 100 ms after power and clocks are stable
*/
mdelay(100);
gpio_set_value(LAN_RESET_N, 1);
} else if (index == 0) { /* Apalis PCIe */
#ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
/*
* Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
* Evaluation Board
*/
gpio_direction_output(PEX_PERST_N, 0);
gpio_direction_output(RESET_MOCI_CTRL, 0);
/*
* Must be asserted for 100 ms after power and clocks are stable
*/
mdelay(100);
gpio_set_value(PEX_PERST_N, 1);
/*
* Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
* Until 900 us After PEX_PERST# De-assertion
*/
mdelay(1);
gpio_set_value(RESET_MOCI_CTRL, 1);
#endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
}
}
#endif /* CONFIG_PCI_TEGRA */
/*
* Enable/start PWM CPU fan
*/
void start_cpu_fan(void)
{
gpio_request(FAN_EN, "FAN_EN");
gpio_direction_output(FAN_EN, 1);
}
/*
* Backlight off before OS handover
*/
void board_preboot_os(void)
{
gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
gpio_direction_output(TEGRA_GPIO(BB, 5), 0);
}
|