1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2016-2018 Toradex, Inc.
4 */
5
6 #include <common.h>
7 #include <dm.h>
8 #include <env.h>
9 #include <init.h>
10 #include <log.h>
11 #include <asm/arch-tegra/ap.h>
12 #include <asm/gpio.h>
13 #include <asm/io.h>
14 #include <asm/arch/gpio.h>
15 #include <asm/arch/pinmux.h>
16 #include <env_internal.h>
17 #include <pci_tegra.h>
18 #include <linux/delay.h>
19 #include <power/as3722.h>
20 #include <power/pmic.h>
21
22 #include "../common/tdx-common.h"
23 #include "pinmux-config-apalis-tk1.h"
24
25 #define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
26 #define LAN_RESET_N TEGRA_GPIO(S, 2)
27 #define FAN_EN TEGRA_GPIO(DD, 2)
28 #define LAN_WAKE_N TEGRA_GPIO(O, 5)
29 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
30 #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
31 #define RESET_MOCI_CTRL TEGRA_GPIO(U, 4)
32 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
33 #define VCC_USBH TEGRA_GPIO(T, 6)
34 #define VCC_USBH_V1_0 TEGRA_GPIO(N, 5)
35 #define VCC_USBO1 TEGRA_GPIO(T, 5)
36 #define VCC_USBO1_V1_0 TEGRA_GPIO(N, 4)
37
arch_misc_init(void)38 int arch_misc_init(void)
39 {
40 if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
41 NVBOOTTYPE_RECOVERY) {
42 printf("USB recovery mode, attempting to boot Toradex Easy "
43 "Installer\n");
44 env_set("bootdelay", "-2");
45 env_set("defargs", "pcie_aspm=off user_debug=30");
46 env_set("fdt_high", "");
47 env_set("initrd_high", "");
48
49 env_set("setup", "env set setupargs igb_mac=${ethaddr} "
50 "consoleblank=0 no_console_suspend=1 "
51 "console=${console},${baudrate}n8 ${memargs}");
52 env_set("teziargs", "rootfstype=squashfs root=/dev/ram quiet "
53 "autoinstall");
54 env_set("vidargs", "video=HDMI-A-1:640x480-16@60D");
55 env_set("bootcmd", "run setup; env set bootargs ${defargs} "
56 "${setupargs} ${vidargs} ${teziargs}; bootm 0x80208000"
57 "#config@${soc}-${fdt_module}-${fdt_board}.dtb");
58 }
59
60 /* PCB Version Indication: V1.2 and later have GPIO_PV0 wired to GND */
61 gpio_request(TEGRA_GPIO(V, 0), "PCB Version Indication");
62 gpio_direction_input(TEGRA_GPIO(V, 0));
63 if (gpio_get_value(TEGRA_GPIO(V, 0))) {
64 /*
65 * if using the default device tree for new V1.2 and later HW,
66 * use version for older V1.0 and V1.1 HW
67 */
68 char *fdt_env = env_get("fdt_module");
69
70 if (fdt_env && !strcmp(FDT_MODULE, fdt_env)) {
71 env_set("fdt_module", FDT_MODULE_V1_0);
72 printf("patching fdt_module to " FDT_MODULE_V1_0
73 " for older V1.0 and V1.1 HW\n");
74 #ifndef CONFIG_ENV_IS_NOWHERE
75 env_save();
76 #endif
77 }
78
79 /* activate USB power enable GPIOs */
80 gpio_request(VCC_USBH_V1_0, "VCC_USBH");
81 gpio_direction_output(VCC_USBH_V1_0, 1);
82 gpio_request(VCC_USBO1_V1_0, "VCC_USBO1");
83 gpio_direction_output(VCC_USBO1_V1_0, 1);
84 } else {
85 /* activate USB power enable GPIOs */
86 gpio_request(VCC_USBH, "VCC_USBH");
87 gpio_direction_output(VCC_USBH, 1);
88 gpio_request(VCC_USBO1, "VCC_USBO1");
89 gpio_direction_output(VCC_USBO1, 1);
90 }
91
92 return 0;
93 }
94
checkboard(void)95 int checkboard(void)
96 {
97 puts("Model: Toradex Apalis TK1 2GB\n");
98
99 return 0;
100 }
101
102 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
ft_board_setup(void * blob,struct bd_info * bd)103 int ft_board_setup(void *blob, struct bd_info *bd)
104 {
105 return ft_common_board_setup(blob, bd);
106 }
107 #endif
108
109 /*
110 * Routine: pinmux_init
111 * Description: Do individual peripheral pinmux configs
112 */
pinmux_init(void)113 void pinmux_init(void)
114 {
115 pinmux_clear_tristate_input_clamping();
116
117 gpio_config_table(apalis_tk1_gpio_inits,
118 ARRAY_SIZE(apalis_tk1_gpio_inits));
119
120 pinmux_config_pingrp_table(apalis_tk1_pingrps,
121 ARRAY_SIZE(apalis_tk1_pingrps));
122
123 pinmux_config_drvgrp_table(apalis_tk1_drvgrps,
124 ARRAY_SIZE(apalis_tk1_drvgrps));
125 }
126
127 #ifdef CONFIG_PCI_TEGRA
128 /* TODO: Convert to driver model */
as3722_sd_enable(struct udevice * pmic,unsigned int sd)129 static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
130 {
131 int err;
132
133 if (sd > 6)
134 return -EINVAL;
135
136 err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
137 if (err) {
138 pr_err("failed to update SD control register: %d", err);
139 return err;
140 }
141
142 return 0;
143 }
144
145 /* TODO: Convert to driver model */
as3722_ldo_enable(struct udevice * pmic,unsigned int ldo)146 static int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
147 {
148 int err;
149 u8 ctrl_reg = AS3722_LDO_CONTROL0;
150
151 if (ldo > 11)
152 return -EINVAL;
153
154 if (ldo > 7) {
155 ctrl_reg = AS3722_LDO_CONTROL1;
156 ldo -= 8;
157 }
158
159 err = pmic_clrsetbits(pmic, ctrl_reg, 0, 1 << ldo);
160 if (err) {
161 pr_err("failed to update LDO control register: %d", err);
162 return err;
163 }
164
165 return 0;
166 }
167
tegra_pcie_board_init(void)168 int tegra_pcie_board_init(void)
169 {
170 struct udevice *dev;
171 int ret;
172
173 ret = uclass_get_device_by_driver(UCLASS_PMIC,
174 DM_DRIVER_GET(pmic_as3722), &dev);
175 if (ret) {
176 pr_err("failed to find AS3722 PMIC: %d\n", ret);
177 return ret;
178 }
179
180 ret = as3722_sd_enable(dev, 4);
181 if (ret < 0) {
182 pr_err("failed to enable SD4: %d\n", ret);
183 return ret;
184 }
185
186 ret = as3722_sd_set_voltage(dev, 4, 0x24);
187 if (ret < 0) {
188 pr_err("failed to set SD4 voltage: %d\n", ret);
189 return ret;
190 }
191
192 gpio_request(LAN_DEV_OFF_N, "LAN_DEV_OFF_N");
193 gpio_request(LAN_RESET_N, "LAN_RESET_N");
194 gpio_request(LAN_WAKE_N, "LAN_WAKE_N");
195
196 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
197 gpio_request(PEX_PERST_N, "PEX_PERST_N");
198 gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL");
199 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
200
201 return 0;
202 }
203
tegra_pcie_board_port_reset(struct tegra_pcie_port * port)204 void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
205 {
206 int index = tegra_pcie_port_index_of_port(port);
207
208 if (index == 1) { /* I210 Gigabit Ethernet Controller (On-module) */
209 struct udevice *dev;
210 int ret;
211
212 ret = uclass_get_device_by_driver(UCLASS_PMIC,
213 DM_DRIVER_GET(pmic_as3722),
214 &dev);
215 if (ret) {
216 debug("%s: Failed to find PMIC\n", __func__);
217 return;
218 }
219
220 /* Reset I210 Gigabit Ethernet Controller */
221 gpio_direction_output(LAN_RESET_N, 0);
222
223 /*
224 * Make sure we don't get any back feeding from DEV_OFF_N resp.
225 * LAN_WAKE_N
226 */
227 gpio_direction_output(LAN_DEV_OFF_N, 0);
228 gpio_direction_output(LAN_WAKE_N, 0);
229
230 /* Make sure LDO9 and LDO10 are initially enabled @ 0V */
231 ret = as3722_ldo_enable(dev, 9);
232 if (ret < 0) {
233 pr_err("failed to enable LDO9: %d\n", ret);
234 return;
235 }
236 ret = as3722_ldo_enable(dev, 10);
237 if (ret < 0) {
238 pr_err("failed to enable LDO10: %d\n", ret);
239 return;
240 }
241 ret = as3722_ldo_set_voltage(dev, 9, 0x80);
242 if (ret < 0) {
243 pr_err("failed to set LDO9 voltage: %d\n", ret);
244 return;
245 }
246 ret = as3722_ldo_set_voltage(dev, 10, 0x80);
247 if (ret < 0) {
248 pr_err("failed to set LDO10 voltage: %d\n", ret);
249 return;
250 }
251
252 /* Make sure controller gets enabled by disabling DEV_OFF_N */
253 gpio_set_value(LAN_DEV_OFF_N, 1);
254
255 /*
256 * Enable LDO9 and LDO10 for +V3.3_ETH on patched prototype
257 * V1.0A and sample V1.0B and newer modules
258 */
259 ret = as3722_ldo_set_voltage(dev, 9, 0xff);
260 if (ret < 0) {
261 pr_err("failed to set LDO9 voltage: %d\n", ret);
262 return;
263 }
264 ret = as3722_ldo_set_voltage(dev, 10, 0xff);
265 if (ret < 0) {
266 pr_err("failed to set LDO10 voltage: %d\n", ret);
267 return;
268 }
269
270 /*
271 * Must be asserted for 100 ms after power and clocks are stable
272 */
273 mdelay(100);
274
275 gpio_set_value(LAN_RESET_N, 1);
276 } else if (index == 0) { /* Apalis PCIe */
277 #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
278 /*
279 * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on Apalis
280 * Evaluation Board
281 */
282 gpio_direction_output(PEX_PERST_N, 0);
283 gpio_direction_output(RESET_MOCI_CTRL, 0);
284
285 /*
286 * Must be asserted for 100 ms after power and clocks are stable
287 */
288 mdelay(100);
289
290 gpio_set_value(PEX_PERST_N, 1);
291 /*
292 * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not Guaranteed
293 * Until 900 us After PEX_PERST# De-assertion
294 */
295 mdelay(1);
296 gpio_set_value(RESET_MOCI_CTRL, 1);
297 #endif /* CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT */
298 }
299 }
300 #endif /* CONFIG_PCI_TEGRA */
301
302 /*
303 * Enable/start PWM CPU fan
304 */
start_cpu_fan(void)305 void start_cpu_fan(void)
306 {
307 gpio_request(FAN_EN, "FAN_EN");
308 gpio_direction_output(FAN_EN, 1);
309 }
310
311 /*
312 * Backlight off before OS handover
313 */
board_preboot_os(void)314 void board_preboot_os(void)
315 {
316 gpio_request(TEGRA_GPIO(BB, 5), "BL_ON");
317 gpio_direction_output(TEGRA_GPIO(BB, 5), 0);
318 }
319