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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
4470f2d5 BM |
2 | /* |
3 | * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com> | |
4470f2d5 BM |
4 | */ |
5 | ||
d678a59d | 6 | #include <common.h> |
2047390a BM |
7 | #include <cpu.h> |
8 | #include <dm.h> | |
f7ae49fc | 9 | #include <log.h> |
a083ae71 | 10 | #include <mapmem.h> |
3cabcf96 | 11 | #include <acpi/acpi_s3.h> |
776cc201 | 12 | #include <acpi/acpi_table.h> |
fcf2fba4 | 13 | #include <asm/io.h> |
4470f2d5 | 14 | #include <asm/tables.h> |
2047390a | 15 | #include <asm/arch/global_nvs.h> |
4470f2d5 | 16 | #include <asm/arch/iomap.h> |
3cabcf96 | 17 | #include <dm/uclass-internal.h> |
4470f2d5 | 18 | |
2e977b2c SG |
19 | static int baytrail_write_fadt(struct acpi_ctx *ctx, |
20 | const struct acpi_writer *entry) | |
4470f2d5 | 21 | { |
2e977b2c SG |
22 | struct acpi_table_header *header; |
23 | struct acpi_fadt *fadt; | |
24 | ||
25 | fadt = ctx->current; | |
26 | header = &fadt->header; | |
4470f2d5 BM |
27 | u16 pmbase = ACPI_BASE_ADDRESS; |
28 | ||
2e977b2c | 29 | memset(fadt, '\0', sizeof(struct acpi_fadt)); |
4470f2d5 BM |
30 | |
31 | acpi_fill_header(header, "FACP"); | |
32 | header->length = sizeof(struct acpi_fadt); | |
33 | header->revision = 4; | |
34 | ||
4470f2d5 BM |
35 | fadt->preferred_pm_profile = ACPI_PM_MOBILE; |
36 | fadt->sci_int = 9; | |
37 | fadt->smi_cmd = 0; | |
38 | fadt->acpi_enable = 0; | |
39 | fadt->acpi_disable = 0; | |
40 | fadt->s4bios_req = 0; | |
41 | fadt->pstate_cnt = 0; | |
42 | fadt->pm1a_evt_blk = pmbase; | |
43 | fadt->pm1b_evt_blk = 0x0; | |
44 | fadt->pm1a_cnt_blk = pmbase + 0x4; | |
45 | fadt->pm1b_cnt_blk = 0x0; | |
46 | fadt->pm2_cnt_blk = pmbase + 0x50; | |
47 | fadt->pm_tmr_blk = pmbase + 0x8; | |
48 | fadt->gpe0_blk = pmbase + 0x20; | |
49 | fadt->gpe1_blk = 0; | |
50 | fadt->pm1_evt_len = 4; | |
51 | fadt->pm1_cnt_len = 2; | |
52 | fadt->pm2_cnt_len = 1; | |
53 | fadt->pm_tmr_len = 4; | |
54 | fadt->gpe0_blk_len = 8; | |
55 | fadt->gpe1_blk_len = 0; | |
56 | fadt->gpe1_base = 0; | |
57 | fadt->cst_cnt = 0; | |
58 | fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED; | |
59 | fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED; | |
60 | fadt->flush_size = 0; | |
61 | fadt->flush_stride = 0; | |
62 | fadt->duty_offset = 1; | |
63 | fadt->duty_width = 0; | |
64 | fadt->day_alrm = 0x0d; | |
65 | fadt->mon_alrm = 0x00; | |
66 | fadt->century = 0x00; | |
67 | fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042; | |
68 | fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | | |
69 | ACPI_FADT_C2_MP_SUPPORTED | ACPI_FADT_SLEEP_BUTTON | | |
70 | ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_RESET_REGISTER | | |
71 | ACPI_FADT_PLATFORM_CLOCK; | |
72 | ||
73 | fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO; | |
74 | fadt->reset_reg.bit_width = 8; | |
75 | fadt->reset_reg.bit_offset = 0; | |
76 | fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; | |
77 | fadt->reset_reg.addrl = IO_PORT_RESET; | |
78 | fadt->reset_reg.addrh = 0; | |
3fe6e6e2 | 79 | fadt->reset_value = SYS_RST | RST_CPU | FULL_RST; |
4470f2d5 | 80 | |
a083ae71 HS |
81 | fadt->x_firmware_ctrl = map_to_sysmem(ctx->facs); |
82 | fadt->x_dsdt = map_to_sysmem(ctx->dsdt); | |
4470f2d5 BM |
83 | |
84 | fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
85 | fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; | |
86 | fadt->x_pm1a_evt_blk.bit_offset = 0; | |
87 | fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; | |
88 | fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk; | |
89 | fadt->x_pm1a_evt_blk.addrh = 0x0; | |
90 | ||
91 | fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
92 | fadt->x_pm1b_evt_blk.bit_width = 0; | |
93 | fadt->x_pm1b_evt_blk.bit_offset = 0; | |
94 | fadt->x_pm1b_evt_blk.access_size = 0; | |
95 | fadt->x_pm1b_evt_blk.addrl = 0x0; | |
96 | fadt->x_pm1b_evt_blk.addrh = 0x0; | |
97 | ||
98 | fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
99 | fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; | |
100 | fadt->x_pm1a_cnt_blk.bit_offset = 0; | |
101 | fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; | |
102 | fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk; | |
103 | fadt->x_pm1a_cnt_blk.addrh = 0x0; | |
104 | ||
105 | fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
106 | fadt->x_pm1b_cnt_blk.bit_width = 0; | |
107 | fadt->x_pm1b_cnt_blk.bit_offset = 0; | |
108 | fadt->x_pm1b_cnt_blk.access_size = 0; | |
109 | fadt->x_pm1b_cnt_blk.addrl = 0x0; | |
110 | fadt->x_pm1b_cnt_blk.addrh = 0x0; | |
111 | ||
112 | fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
113 | fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8; | |
114 | fadt->x_pm2_cnt_blk.bit_offset = 0; | |
115 | fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; | |
116 | fadt->x_pm2_cnt_blk.addrl = fadt->pm2_cnt_blk; | |
117 | fadt->x_pm2_cnt_blk.addrh = 0x0; | |
118 | ||
119 | fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
120 | fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8; | |
121 | fadt->x_pm_tmr_blk.bit_offset = 0; | |
122 | fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; | |
123 | fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk; | |
124 | fadt->x_pm_tmr_blk.addrh = 0x0; | |
125 | ||
126 | fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
127 | fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8; | |
128 | fadt->x_gpe0_blk.bit_offset = 0; | |
129 | fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; | |
130 | fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; | |
131 | fadt->x_gpe0_blk.addrh = 0x0; | |
132 | ||
133 | fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO; | |
134 | fadt->x_gpe1_blk.bit_width = 0; | |
135 | fadt->x_gpe1_blk.bit_offset = 0; | |
136 | fadt->x_gpe1_blk.access_size = 0; | |
137 | fadt->x_gpe1_blk.addrl = 0x0; | |
138 | fadt->x_gpe1_blk.addrh = 0x0; | |
139 | ||
140 | header->checksum = table_compute_checksum(fadt, header->length); | |
2e977b2c | 141 | |
b95bc64b | 142 | return acpi_add_fadt(ctx, fadt); |
4470f2d5 | 143 | } |
2e977b2c | 144 | ACPI_WRITER(5fadt, "FADT", baytrail_write_fadt, 0); |
4470f2d5 | 145 | |
8d7ff12e | 146 | int acpi_create_gnvs(struct acpi_global_nvs *gnvs) |
2047390a BM |
147 | { |
148 | struct udevice *dev; | |
149 | int ret; | |
150 | ||
151 | /* at least we have one processor */ | |
152 | gnvs->pcnt = 1; | |
153 | /* override the processor count with actual number */ | |
154 | ret = uclass_find_first_device(UCLASS_CPU, &dev); | |
155 | if (ret == 0 && dev != NULL) { | |
156 | ret = cpu_get_count(dev); | |
157 | if (ret > 0) | |
158 | gnvs->pcnt = ret; | |
159 | } | |
160 | ||
161 | /* determine whether internal uart is on */ | |
162 | if (IS_ENABLED(CONFIG_INTERNAL_UART)) | |
163 | gnvs->iuart_en = 1; | |
164 | else | |
165 | gnvs->iuart_en = 0; | |
8d7ff12e SG |
166 | |
167 | return 0; | |
2047390a | 168 | } |
fcf2fba4 | 169 | |
fcf2fba4 BM |
170 | /* |
171 | * The following two routines are called at a very early stage, even before | |
172 | * FSP 2nd phase API fsp_init() is called. Registers off ACPI_BASE_ADDRESS | |
173 | * and PMC_BASE_ADDRESS are accessed, so we need make sure the base addresses | |
174 | * of these two blocks are programmed by either U-Boot or FSP. | |
175 | * | |
83311886 | 176 | * It has been verified that 1st phase API (see arch/x86/lib/fsp1/fsp_car.S) |
fcf2fba4 BM |
177 | * on Intel BayTrail SoC already initializes these two base addresses so |
178 | * we are safe to access these registers here. | |
179 | */ | |
180 | ||
181 | enum acpi_sleep_state chipset_prev_sleep_state(void) | |
182 | { | |
183 | u32 pm1_sts; | |
184 | u32 pm1_cnt; | |
185 | u32 gen_pmcon1; | |
186 | enum acpi_sleep_state prev_sleep_state = ACPI_S0; | |
187 | ||
188 | /* Read Power State */ | |
189 | pm1_sts = inw(ACPI_BASE_ADDRESS + PM1_STS); | |
190 | pm1_cnt = inl(ACPI_BASE_ADDRESS + PM1_CNT); | |
191 | gen_pmcon1 = readl(PMC_BASE_ADDRESS + GEN_PMCON1); | |
192 | ||
193 | debug("PM1_STS = 0x%x PM1_CNT = 0x%x GEN_PMCON1 = 0x%x\n", | |
194 | pm1_sts, pm1_cnt, gen_pmcon1); | |
195 | ||
196 | if (pm1_sts & WAK_STS) | |
197 | prev_sleep_state = acpi_sleep_from_pm1(pm1_cnt); | |
198 | ||
199 | if (gen_pmcon1 & (PWR_FLR | SUS_PWR_FLR)) | |
200 | prev_sleep_state = ACPI_S5; | |
201 | ||
202 | return prev_sleep_state; | |
203 | } | |
204 | ||
205 | void chipset_clear_sleep_state(void) | |
206 | { | |
207 | u32 pm1_cnt; | |
208 | ||
209 | pm1_cnt = inl(ACPI_BASE_ADDRESS + PM1_CNT); | |
210 | outl(pm1_cnt & ~(SLP_TYP), ACPI_BASE_ADDRESS + PM1_CNT); | |
211 | } |