Martin Roth | bf6b83a | 2015-10-11 10:37:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2007-2010 coresystems GmbH |
| 5 | * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. |
| 6 | * Copyright (C) 2013 Sage Electronic Engineering, LLC. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; version 2 of the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
Martin Roth | bf6b83a | 2015-10-11 10:37:02 +0200 | [diff] [blame] | 16 | */ |
| 17 | |
| 18 | |
| 19 | #include <stdint.h> |
| 20 | #include <string.h> |
| 21 | #include <lib.h> |
| 22 | #include <timestamp.h> |
| 23 | #include <arch/io.h> |
| 24 | #include <device/pci_def.h> |
| 25 | #include <device/pnp_def.h> |
| 26 | #include <cpu/x86/lapic.h> |
| 27 | #include <pc80/mc146818rtc.h> |
| 28 | #include <cbmem.h> |
| 29 | #include <console/console.h> |
| 30 | #include <halt.h> |
| 31 | #include <reset.h> |
| 32 | #include <superio/smsc/sio1007/chip.h> |
| 33 | #include <fsp_util.h> |
| 34 | #include <northbridge/intel/fsp_sandybridge/northbridge.h> |
| 35 | #include <northbridge/intel/fsp_sandybridge/raminit.h> |
| 36 | #include <southbridge/intel/fsp_bd82x6x/pch.h> |
| 37 | #include <southbridge/intel/fsp_bd82x6x/gpio.h> |
| 38 | #include <southbridge/intel/fsp_bd82x6x/me.h> |
| 39 | #include <arch/cpu.h> |
| 40 | #include <cpu/x86/msr.h> |
| 41 | #include "gpio.h" |
| 42 | #include <arch/stages.h> |
| 43 | |
| 44 | #define SIO_PORT 0x164e |
| 45 | |
| 46 | static inline void reset_system(void) |
| 47 | { |
| 48 | hard_reset(); |
| 49 | halt(); |
| 50 | } |
| 51 | |
| 52 | static void pch_enable_lpc(void) |
| 53 | { |
| 54 | device_t dev = PCH_LPC_DEV; |
| 55 | |
| 56 | /* Set COM1/COM2 decode range */ |
| 57 | pci_write_config16(dev, LPC_IO_DEC, 0x0010); |
| 58 | |
| 59 | /* Enable SuperIO + PS/2 Keyboard/Mouse */ |
| 60 | u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | KBC_LPC_EN; |
| 61 | pci_write_config16(dev, LPC_EN, lpc_config); |
| 62 | |
| 63 | /* Map 256 bytes at 0x1600 to the LPC bus. */ |
| 64 | pci_write_config32(dev, LPC_GEN1_DEC, 0xfc1601); |
| 65 | |
| 66 | /* Map a range for the runtime registers to the LPC bus. */ |
| 67 | pci_write_config32(dev, LPC_GEN2_DEC, 0xc0181); |
| 68 | |
| 69 | if (sio1007_enable_uart_at(SIO_PORT)) { |
| 70 | pci_write_config16(dev, LPC_EN, |
| 71 | lpc_config | COMA_LPC_EN); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | static void setup_sio_gpios(void) |
| 76 | { |
| 77 | const u16 port = SIO_PORT; |
| 78 | const u16 runtime_port = 0x180; |
| 79 | |
| 80 | /* Turn on configuration mode. */ |
| 81 | outb(0x55, port); |
| 82 | |
| 83 | /* Set the GPIO direction, polarity, and type. */ |
| 84 | sio1007_setreg(port, 0x31, 1 << 0, 1 << 0); |
| 85 | sio1007_setreg(port, 0x32, 0 << 0, 1 << 0); |
| 86 | sio1007_setreg(port, 0x33, 0 << 0, 1 << 0); |
| 87 | |
| 88 | /* Set the base address for the runtime register block. */ |
| 89 | sio1007_setreg(port, 0x30, runtime_port >> 4, 0xff); |
| 90 | sio1007_setreg(port, 0x21, runtime_port >> 12, 0xff); |
| 91 | |
| 92 | /* Turn on address decoding for it. */ |
| 93 | sio1007_setreg(port, 0x3a, 1 << 1, 1 << 1); |
| 94 | |
| 95 | /* |
| 96 | * Enable the RS232 transiver. |
| 97 | * Set the value of GPIO 10 by changing GP1, bit 0. |
| 98 | */ |
| 99 | u8 byte; |
| 100 | byte = inb(runtime_port + 0xc); |
| 101 | byte |= (1 << 0); |
| 102 | outb(byte, runtime_port + 0xc); |
| 103 | |
| 104 | /* Turn off address decoding for it. */ |
| 105 | sio1007_setreg(port, 0x3a, 0 << 1, 1 << 1); |
| 106 | |
| 107 | /* Turn off configuration mode. */ |
| 108 | outb(0xaa, port); |
| 109 | } |
| 110 | |
| 111 | static void rcba_config(void) |
| 112 | { |
| 113 | u32 reg32; |
| 114 | |
| 115 | /* |
| 116 | * GFX INTA -> PIRQA (MSI) |
| 117 | * D31IP_SIP SATA INTB -> PIRQD |
| 118 | * D31IP_SMIP SMBUS INTC -> PIRQC |
| 119 | * D31IP_SIP SATA2 INTB -> PIRQD |
| 120 | * D31IP_TTIP THRT INTC -> PIRQC |
| 121 | * D29IP_E1P EHCI1 INTA -> PIRQD |
| 122 | * D28IP_P1IP INTA -> PIRQD |
| 123 | * D28IP_P2IP INTB -> PIRQC |
| 124 | * D28IP_P3IP INTC -> PIRQB |
| 125 | * D28IP_P4IP INTD -> PIRQA |
| 126 | * D28IP_P5IP INTA -> PIRQD |
| 127 | * D28IP_P6IP INTB -> PIRQC |
| 128 | * D28IP_P7IP INTC -> PIRQB |
| 129 | * D28IP_P8IP INTD -> PIRQA |
| 130 | * D27IP_ZIP HDA INTA -> PIRQD |
| 131 | * D26IP_E2P EHCI2 INTA -> PIRQD |
| 132 | * D20IP_XHCI XHCI INTA -> PIRQD (MSI) |
| 133 | */ |
| 134 | |
| 135 | /* Device interrupt pin register (board specific) */ |
| 136 | RCBA32(D31IP) = (INTC << D31IP_TTIP) | (INTB << D31IP_SIP2) | |
| 137 | (INTC << D31IP_SMIP) | (INTB << D31IP_SIP); |
| 138 | RCBA32(D29IP) = (INTA << D29IP_E1P); |
| 139 | RCBA32(D28IP) = (INTD << D28IP_P8IP) | (INTC << D28IP_P7IP) | |
| 140 | (INTB << D28IP_P6IP) | (INTA << D28IP_P5IP) | |
| 141 | (INTD << D28IP_P4IP) | (INTC << D28IP_P3IP) | |
| 142 | (INTB << D28IP_P2IP) | (INTA << D28IP_P1IP); |
| 143 | RCBA32(D27IP) = (INTA << D27IP_ZIP); |
| 144 | RCBA32(D26IP) = (INTA << D26IP_E2P); |
| 145 | RCBA32(D25IP) = (INTA << D25IP_LIP); |
| 146 | RCBA32(D22IP) = (INTB << D22IP_KTIP) | (INTC << D22IP_IDERIP) | |
| 147 | (INTB << D22IP_MEI2IP) | (INTA << D22IP_MEI1IP); |
| 148 | RCBA32(D20IP) = (INTA << D20IP_XHCIIP); |
| 149 | |
| 150 | /* Device interrupt route registers */ |
| 151 | DIR_ROUTE(D31IR, PIRQA, PIRQD, PIRQC, PIRQA); |
| 152 | DIR_ROUTE(D29IR, PIRQH, PIRQD, PIRQA, PIRQC); |
| 153 | DIR_ROUTE(D28IR, PIRQA, PIRQB, PIRQC, PIRQD); |
| 154 | DIR_ROUTE(D27IR, PIRQG, PIRQB, PIRQC, PIRQD); |
| 155 | DIR_ROUTE(D26IR, PIRQF, PIRQA, PIRQC, PIRQD); |
| 156 | DIR_ROUTE(D25IR, PIRQE, PIRQF, PIRQG, PIRQH); |
| 157 | DIR_ROUTE(D22IR, PIRQA, PIRQD, PIRQC, PIRQB); |
| 158 | DIR_ROUTE(D20IR, PIRQD, PIRQE, PIRQF, PIRQG); |
| 159 | |
| 160 | /* Enable IOAPIC (generic) */ |
| 161 | RCBA16(OIC) = 0x0100; |
| 162 | /* PCH BWG says to read back the IOAPIC enable register */ |
| 163 | (void) RCBA16(OIC); |
| 164 | |
| 165 | /* Disable unused devices (board specific) */ |
| 166 | reg32 = RCBA32(FD); |
| 167 | reg32 |= PCH_DISABLE_ALWAYS; |
| 168 | RCBA32(FD) = reg32; |
| 169 | } |
| 170 | |
| 171 | void main(FSP_INFO_HEADER *fsp_info_header) |
| 172 | { |
| 173 | #if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) |
| 174 | int boot_mode = 0; |
| 175 | #endif |
| 176 | u32 pm1_cnt; |
| 177 | u16 pm1_sts; |
| 178 | |
| 179 | post_code(0x40); |
| 180 | |
| 181 | timestamp_init(get_initial_timestamp()); |
| 182 | timestamp_add_now(TS_START_ROMSTAGE); |
| 183 | |
| 184 | pch_enable_lpc(); |
| 185 | |
| 186 | /* Enable GPIOs */ |
| 187 | pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1); |
| 188 | pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10); |
| 189 | setup_pch_gpios(&gpio_map); |
| 190 | setup_sio_gpios(); |
| 191 | |
| 192 | console_init(); |
| 193 | post_code(0x41); |
| 194 | |
| 195 | post_code(0x42); |
| 196 | sandybridge_sb_early_initialization(); |
| 197 | |
| 198 | post_code(0x43); |
| 199 | sandybridge_early_initialization(SANDYBRIDGE_MOBILE); |
| 200 | printk(BIOS_DEBUG, "Back from sandybridge_early_initialization()\n"); |
| 201 | |
| 202 | post_code(0x44); |
| 203 | /* Wait for ME to be ready */ |
| 204 | intel_early_me_status(); |
| 205 | intel_early_me_init(); |
| 206 | intel_early_me_uma_size(); |
| 207 | |
| 208 | post_code(0x45); |
| 209 | /* Check PM1_STS[15] to see if we are waking from Sx */ |
| 210 | pm1_sts = inw(DEFAULT_PMBASE + PM1_STS); |
| 211 | |
| 212 | /* Read PM1_CNT[12:10] to determine which Sx state */ |
| 213 | pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT); |
| 214 | post_code(0x46); |
| 215 | if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) { |
| 216 | #if CONFIG_HAVE_ACPI_RESUME |
| 217 | printk(BIOS_DEBUG, "Resume from S3 detected.\n"); |
| 218 | boot_mode = 2; |
| 219 | /* Clear SLP_TYPE. This will break stage2 but |
| 220 | * we care for that when we get there. |
| 221 | */ |
| 222 | outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT); |
| 223 | #else |
| 224 | printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n"); |
| 225 | #endif |
| 226 | } |
| 227 | |
| 228 | post_code(0x48); |
| 229 | |
| 230 | timestamp_add_now(TS_BEFORE_INITRAM); |
| 231 | |
| 232 | /* |
| 233 | * Call early init to initialize memory and chipset. This function returns |
| 234 | * to the romstage_main_continue function with a pointer to the HOB |
| 235 | * structure. |
| 236 | */ |
| 237 | printk(BIOS_DEBUG, "Starting the Intel FSP (early_init)\n"); |
| 238 | fsp_early_init(fsp_info_header); |
| 239 | die("Uh Oh! fsp_early_init should not return here.\n"); |
| 240 | } |
| 241 | |
| 242 | /******************************************************************************* |
| 243 | * The FSP early_init function returns to this function. |
| 244 | * Memory is setup and the stack is set by the FSP. |
| 245 | ******************************************************************************/ |
| 246 | void romstage_main_continue(EFI_STATUS status, VOID *HobListPtr) { |
| 247 | int cbmem_was_initted; |
| 248 | u32 reg32; |
| 249 | void *cbmem_hob_ptr; |
| 250 | |
| 251 | timestamp_add_now(TS_AFTER_INITRAM); |
| 252 | |
| 253 | /* |
| 254 | * HD AUDIO is not used on this system, so we're using some registers |
| 255 | * in there as temporary registers to save TSC values. This is complete |
| 256 | * now, so disable the audio block. |
| 257 | */ |
| 258 | reg32 = RCBA32(FD); |
| 259 | reg32 |= PCH_DISABLE_HD_AUDIO; |
| 260 | RCBA32(FD) = reg32; |
| 261 | |
| 262 | post_code(0x49); |
| 263 | |
| 264 | #if CONFIG_USBDEBUG |
| 265 | /* FSP reconfigures USB, so reinit it to have debug */ |
| 266 | early_usbdebug_init(); |
| 267 | #endif |
| 268 | |
| 269 | /* For reference print FSP version */ |
| 270 | u32 version = MCHBAR32(0x5034); |
| 271 | printk(BIOS_DEBUG, "FSP Version %d.%d.%d Build %d\n", |
| 272 | version >> 24 , (version >> 16) & 0xff, |
| 273 | (version >> 8) & 0xff, version & 0xff); |
| 274 | printk(BIOS_DEBUG, "FSP Status: 0x%0x\n", (u32)status); |
| 275 | |
| 276 | intel_early_me_init_done(ME_INIT_STATUS_SUCCESS); |
| 277 | |
| 278 | printk(BIOS_SPEW, "FD & FD2 Settings:\n"); |
| 279 | display_fd_settings(); |
| 280 | |
| 281 | report_memory_config(); |
| 282 | |
| 283 | post_code(0x4b); |
| 284 | |
| 285 | early_pch_init(); |
| 286 | post_code(0x4c); |
| 287 | |
| 288 | rcba_config(); |
| 289 | post_code(0x4d); |
| 290 | |
| 291 | quick_ram_check(); |
| 292 | post_code(0x4e); |
| 293 | |
| 294 | cbmem_was_initted = !cbmem_recovery(0); |
| 295 | |
| 296 | if(cbmem_was_initted) { |
| 297 | reset_system(); |
| 298 | } |
| 299 | |
| 300 | /* Save the HOB pointer in CBMEM to be used in ramstage. */ |
| 301 | cbmem_hob_ptr = cbmem_add (CBMEM_ID_HOB_POINTER, sizeof(*HobListPtr)); |
| 302 | *(u32*)cbmem_hob_ptr = (u32)HobListPtr; |
| 303 | post_code(0x4f); |
| 304 | |
| 305 | /* Load the ramstage. */ |
| 306 | copy_and_run(); |
| 307 | while (1); |
| 308 | } |
| 309 | |
| 310 | void romstage_fsp_rt_buffer_callback(FSP_INIT_RT_BUFFER *FspRtBuffer) |
| 311 | { |
| 312 | /* No overrides needed */ |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | uint64_t get_initial_timestamp(void) |
| 317 | { |
| 318 | return (uint64_t) pci_read_config32(PCI_DEV(0, 0x1f, 2), 0xd0) << 4; |
| 319 | } |