diff options
Diffstat (limited to 'src/mainboard/google/peppy/romstage.c')
-rw-r--r-- | src/mainboard/google/peppy/romstage.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/mainboard/google/peppy/romstage.c b/src/mainboard/google/peppy/romstage.c new file mode 100644 index 0000000000..8679adb202 --- /dev/null +++ b/src/mainboard/google/peppy/romstage.c @@ -0,0 +1,196 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2010 coresystems GmbH + * Copyright (C) 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <delay.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <cbfs.h> +#include <console/console.h> +#include "cpu/intel/haswell/haswell.h" +#include "northbridge/intel/haswell/haswell.h" +#include "northbridge/intel/haswell/raminit.h" +#include "southbridge/intel/lynxpoint/pch.h" +#include "southbridge/intel/lynxpoint/lp_gpio.h" +#include "gpio.h" + +const struct rcba_config_instruction rcba_config[] = { + + /* + * GFX INTA -> PIRQA (MSI) + * D28IP_P1IP PCIE INTA -> PIRQA + * D29IP_E1P EHCI INTA -> PIRQD + * D20IP_XHCI XHCI INTA -> PIRQC (MSI) + * D31IP_SIP SATA INTA -> PIRQF (MSI) + * D31IP_SMIP SMBUS INTB -> PIRQG + * D31IP_TTIP THRT INTC -> PIRQA + * D27IP_ZIP HDA INTA -> PIRQG (MSI) + */ + + /* Device interrupt pin register (board specific) */ + RCBA_SET_REG_32(D31IP, (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) | + (INTB << D31IP_SMIP) | (INTA << D31IP_SIP)), + RCBA_SET_REG_32(D29IP, (INTA << D29IP_E1P)), + RCBA_SET_REG_32(D28IP, (INTA << D28IP_P1IP) | (INTC << D28IP_P3IP) | + (INTB << D28IP_P4IP)), + RCBA_SET_REG_32(D27IP, (INTA << D27IP_ZIP)), + RCBA_SET_REG_32(D26IP, (INTA << D26IP_E2P)), + RCBA_SET_REG_32(D22IP, (NOINT << D22IP_MEI1IP)), + RCBA_SET_REG_32(D20IP, (INTA << D20IP_XHCI)), + + /* Device interrupt route registers */ + RCBA_SET_REG_32(D31IR, DIR_ROUTE(PIRQG, PIRQC, PIRQB, PIRQA)),/* LPC */ + RCBA_SET_REG_32(D29IR, DIR_ROUTE(PIRQD, PIRQD, PIRQD, PIRQD)),/* EHCI */ + RCBA_SET_REG_32(D28IR, DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)),/* PCIE */ + RCBA_SET_REG_32(D27IR, DIR_ROUTE(PIRQG, PIRQG, PIRQG, PIRQG)),/* HDA */ + RCBA_SET_REG_32(D22IR, DIR_ROUTE(PIRQA, PIRQA, PIRQA, PIRQA)),/* ME */ + RCBA_SET_REG_32(D21IR, DIR_ROUTE(PIRQE, PIRQF, PIRQF, PIRQF)),/* SIO */ + RCBA_SET_REG_32(D20IR, DIR_ROUTE(PIRQC, PIRQC, PIRQC, PIRQC)),/* XHCI */ + RCBA_SET_REG_32(D23IR, DIR_ROUTE(PIRQH, PIRQH, PIRQH, PIRQH)),/* SDIO */ + + /* Disable unused devices (board specific) */ + RCBA_RMW_REG_32(FD, ~0, PCH_DISABLE_ALWAYS), + + RCBA_END_CONFIG, +}; + +/* Copy SPD data for on-board memory */ +static void copy_spd(struct pei_data *peid) +{ + const int gpio_vector[] = {13, 9, 47, -1}; + int spd_index = get_gpios(gpio_vector); + struct cbfs_file *spd_file; + + printk(BIOS_DEBUG, "SPD index %d\n", spd_index); + spd_file = cbfs_get_file(CBFS_DEFAULT_MEDIA, "spd.bin"); + if (!spd_file) + die("SPD data not found."); + + if (ntohl(spd_file->len) < + ((spd_index + 1) * sizeof(peid->spd_data[0]))) { + printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n"); + spd_index = 0; + } + + if (spd_file->len < sizeof(peid->spd_data[0])) + die("Missing SPD data."); + + memcpy(peid->spd_data[0], + ((char*)CBFS_SUBHEADER(spd_file)) + + spd_index * sizeof(peid->spd_data[0]), + sizeof(peid->spd_data[0])); +} + +/* + * Power Sequencing for SanDisk i100/i110 SSD + * + * Must be sequenced in this order with specified timing. + * + * 1. VCC_IO : 30us - 100ms + * 2. VCC_FLASH : 70us - 10ms + * 3. VCCQ : 70us - 10ms + * 4. VDDC : 30us - 100ms + * + * There is no feedback to know if the voltage has stabilized + * so this implementation will use the max ramp times. That + * means it adds significantly to the boot time. + */ +static void issd_power_sequence(void) +{ + struct gpio_seq { + int gpio; + int wait_ms; + } issd_gpio_seq[] = { + { 49, 100 }, /* VCC_IO: GPIO 49, wait 100ms */ + { 44, 10 }, /* VCC_FLASH: GPIO 44, wait 10ms */ + { 17, 10 }, /* VCCQ: GPIO 17, wait 10ms */ + { 16, 100 }, /* VDDC: GPIO 16, wait 100ms */ + }; + int step; + + for (step = 0; step < ARRAY_SIZE(issd_gpio_seq); step++) { + set_gpio(issd_gpio_seq[step].gpio, 1); + udelay(issd_gpio_seq[step].wait_ms * 1000); + } +} + +void mainboard_romstage_entry(unsigned long bist) +{ + struct pei_data pei_data = { + pei_version: PEI_VERSION, + mchbar: DEFAULT_MCHBAR, + dmibar: DEFAULT_DMIBAR, + epbar: DEFAULT_EPBAR, + pciexbar: DEFAULT_PCIEXBAR, + smbusbar: SMBUS_IO_BASE, + wdbbar: 0x4000000, + wdbsize: 0x1000, + hpet_address: HPET_ADDR, + rcba: DEFAULT_RCBA, + pmbase: DEFAULT_PMBASE, + gpiobase: DEFAULT_GPIOBASE, + temp_mmio_base: 0xfed08000, + system_type: 5, /* ULT */ + tseg_size: CONFIG_SMM_TSEG_SIZE, + spd_addresses: { 0xff, 0x00, 0xff, 0x00 }, + ec_present: 1, + // 0 = leave channel enabled + // 1 = disable dimm 0 on channel + // 2 = disable dimm 1 on channel + // 3 = disable dimm 0+1 on channel + dimm_channel0_disabled: 2, + dimm_channel1_disabled: 2, + max_ddr3_freq: 1600, + usb2_ports: { + /* Length, Enable, OCn# */ + { 0x0040, 1, USB_OC_PIN_SKIP }, /* P0: LTE */ + { 0x0040, 1, 0 }, /* P1: Port A, CN10 */ + { 0x0040, 1, USB_OC_PIN_SKIP }, /* P2: CCD */ + { 0x0040, 1, USB_OC_PIN_SKIP }, /* P3: BT */ + { 0x0040, 1, 2 }, /* P4: Port B, CN6 */ + { 0x0040, 0, USB_OC_PIN_SKIP }, /* P5: EMPTY */ + { 0x0040, 1, USB_OC_PIN_SKIP }, /* P6: SD Card */ + { 0x0040, 0, USB_OC_PIN_SKIP }, /* P7: EMPTY */ + }, + usb3_ports: { + /* Enable, OCn# */ + { 1, 0 }, /* P1; Port A, CN10 */ + { 1, 2 }, /* P2; Port B, CN6 */ + { 0, USB_OC_PIN_SKIP }, /* P3; */ + { 0, USB_OC_PIN_SKIP }, /* P4; */ + }, + }; + + struct romstage_params romstage_params = { + .pei_data = &pei_data, + .gpio_map = &mainboard_gpio_map, + .rcba_config = &rcba_config[0], + .bist = bist, + }; + + /* Prepare SPD data */ + copy_spd(&pei_data); + + /* Call into the real romstage main with this board's attributes. */ + romstage_common(&romstage_params); + + /* Power sequence the iSSD module */ + issd_power_sequence(); +} |