1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2
3 #include <acpi/acpi.h>
4 #include <acpi/acpigen.h>
5 #include <baseboard/gpio.h>
6 #include <baseboard/variants.h>
7 #include <device/device.h>
8 #include <drivers/wwan/fm/chip.h>
9 #include <ec/ec.h>
10 #include <fw_config.h>
11 #include <soc/ramstage.h>
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <vendorcode/google/chromeos/chromeos.h>
15
16 WEAK_DEV_PTR(rp6_wwan);
17
fw_config_gpio_padbased_override(struct pad_config * padbased_table)18 void __weak fw_config_gpio_padbased_override(struct pad_config *padbased_table)
19 {
20 /* default implementation does nothing */
21 }
22
mainboard_update_soc_chip_config(struct soc_intel_meteorlake_config * config)23 void mainboard_update_soc_chip_config(struct soc_intel_meteorlake_config *config)
24 {
25 variant_update_soc_chip_config(config);
26 }
27
variant_update_soc_chip_config(struct soc_intel_meteorlake_config * config)28 __weak void variant_update_soc_chip_config(struct soc_intel_meteorlake_config *config)
29 {
30 /* default implementation does nothing */
31 }
32
mainboard_init(void * chip_info)33 static void mainboard_init(void *chip_info)
34 {
35 struct pad_config *padbased_table;
36 const struct pad_config *base_pads;
37 size_t base_num;
38
39 padbased_table = new_padbased_table();
40 base_pads = variant_gpio_table(&base_num);
41 gpio_padbased_override(padbased_table, base_pads, base_num);
42 fw_config_gpio_padbased_override(padbased_table);
43 gpio_configure_pads_with_padbased(padbased_table);
44 free(padbased_table);
45 baseboard_devtree_update();
46 }
47
baseboard_devtree_update(void)48 void __weak baseboard_devtree_update(void)
49 {
50 /* Override dev tree settings per baseboard */
51 }
52
variant_generate_s0ix_hook(enum s0ix_entry entry)53 void __weak variant_generate_s0ix_hook(enum s0ix_entry entry)
54 {
55 /* Add board-specific MS0X entries */
56 /*
57 if (s0ix_entry == S0IX_ENTRY) {
58 implement variant operations here
59 }
60 if (s0ix_entry == S0IX_EXIT) {
61 implement variant operations here
62 }
63 */
64 }
65
mainboard_generate_s0ix_hook(void)66 static void mainboard_generate_s0ix_hook(void)
67 {
68 acpigen_write_if_lequal_op_int(ARG0_OP, 1);
69 {
70 if (CONFIG(HAVE_SLP_S0_GATE))
71 acpigen_soc_clear_tx_gpio(GPIO_SLP_S0_GATE);
72 variant_generate_s0ix_hook(S0IX_ENTRY);
73 }
74 acpigen_write_else();
75 {
76 if (CONFIG(HAVE_SLP_S0_GATE))
77 acpigen_soc_set_tx_gpio(GPIO_SLP_S0_GATE);
78 variant_generate_s0ix_hook(S0IX_EXIT);
79 }
80 acpigen_write_if_end();
81 }
82
mainboard_generate_wwan_shutdown(const struct device * dev)83 static void mainboard_generate_wwan_shutdown(const struct device *dev)
84 {
85 const struct drivers_wwan_fm_config *config = config_of(dev);
86 const struct device *parent = dev->upstream->dev;
87
88 if (!config)
89 return;
90 if (config->rtd3dev) {
91 acpigen_write_store();
92 acpigen_emit_namestring(acpi_device_path_join(parent, "RTD3._STA"));
93 acpigen_emit_byte(LOCAL0_OP);
94 acpigen_write_if_lequal_op_int(LOCAL0_OP, ONE_OP);
95 {
96 acpigen_emit_namestring(acpi_device_path_join(dev, "DPTS"));
97 acpigen_emit_byte(ARG0_OP);
98 }
99 acpigen_write_if_end();
100 }
101 }
102
mainboard_fill_ssdt(const struct device * dev)103 static void mainboard_fill_ssdt(const struct device *dev)
104 {
105 const struct device *wwan = DEV_PTR(rp6_wwan);
106
107 if (is_dev_enabled(wwan)) {
108 acpigen_write_scope("\\_SB");
109 acpigen_write_method_serialized("MPTS", 1);
110 mainboard_generate_wwan_shutdown(wwan);
111 acpigen_write_method_end(); /* Method */
112 acpigen_write_scope_end(); /* Scope */
113 }
114
115 acpigen_write_scope("\\_SB");
116 acpigen_write_method_serialized("MS0X", 1);
117 mainboard_generate_s0ix_hook();
118 acpigen_write_method_end(); /* Method */
119 acpigen_write_scope_end(); /* Scope */
120 }
121
add_fw_config_oem_string(const struct fw_config * config,void * arg)122 static void add_fw_config_oem_string(const struct fw_config *config, void *arg)
123 {
124 struct smbios_type11 *t;
125 char buffer[64];
126
127 t = (struct smbios_type11 *)arg;
128
129 snprintf(buffer, sizeof(buffer), "%s-%s", config->field_name, config->option_name);
130 t->count = smbios_add_string(t->eos, buffer);
131 }
132
mainboard_smbios_strings(struct device * dev,struct smbios_type11 * t)133 static void mainboard_smbios_strings(struct device *dev, struct smbios_type11 *t)
134 {
135 fw_config_for_each_found(add_fw_config_oem_string, t);
136 }
137
mainboard_dev_init(struct device * dev)138 static void mainboard_dev_init(struct device *dev)
139 {
140 mainboard_ec_init();
141 }
142
mainboard_enable(struct device * dev)143 static void mainboard_enable(struct device *dev)
144 {
145 dev->ops->init = mainboard_dev_init;
146 dev->ops->get_smbios_strings = mainboard_smbios_strings;
147 dev->ops->acpi_fill_ssdt = mainboard_fill_ssdt;
148 }
149
150 struct chip_operations mainboard_ops = {
151 .init = mainboard_init,
152 .enable_dev = mainboard_enable,
153 };
154