diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/intel/baskingridge/romstage.c | 136 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/early_init.c | 22 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/raminit.c | 17 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/early_pch.c | 172 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/pch.h | 48 |
6 files changed, 256 insertions, 141 deletions
diff --git a/src/mainboard/intel/baskingridge/romstage.c b/src/mainboard/intel/baskingridge/romstage.c index 2a8e910490..9561456ad7 100644 --- a/src/mainboard/intel/baskingridge/romstage.c +++ b/src/mainboard/intel/baskingridge/romstage.c @@ -33,7 +33,7 @@ #include "northbridge/intel/haswell/haswell.h" #include "northbridge/intel/haswell/raminit.h" #include "southbridge/intel/lynxpoint/pch.h" -#include "southbridge/intel/lynxpoint/gpio.h" +#include "southbridge/intel/lynxpoint/me.h" #include <arch/cpu.h> #include <cpu/x86/bist.h> #include <cpu/x86/msr.h> @@ -42,22 +42,7 @@ #include <vendorcode/google/chromeos/chromeos.h> #endif -static void pch_enable_lpc(void) -{ - device_t dev = PCH_LPC_DEV; - - /* Set COM1/COM2 decode range */ - pci_write_config16(dev, LPC_IO_DEC, 0x0010); - - /* Enable SuperIO + COM1 + PS/2 Keyboard/Mouse */ - u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | COMA_LPC_EN | KBC_LPC_EN; - pci_write_config16(dev, LPC_EN, lpc_config); -} - -static void rcba_config(void) -{ - u32 reg32; - +const struct rcba_config_instruction rcba_config[] = { /* * GFX INTA -> PIRQA (MSI) * D28IP_P1IP WLAN INTA -> PIRQB @@ -71,55 +56,42 @@ static void rcba_config(void) */ /* Device interrupt pin register (board specific) */ - RCBA32(D31IP) = (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) | - (INTB << D31IP_SMIP) | (INTA << D31IP_SIP); - RCBA32(D30IP) = (NOINT << D30IP_PIP); - RCBA32(D29IP) = (INTA << D29IP_E1P); - RCBA32(D28IP) = (INTA << D28IP_P1IP) | (INTC << D28IP_P3IP) | - (INTB << D28IP_P4IP); - RCBA32(D27IP) = (INTA << D27IP_ZIP); - RCBA32(D26IP) = (INTA << D26IP_E2P); - RCBA32(D25IP) = (NOINT << D25IP_LIP); - RCBA32(D22IP) = (NOINT << D22IP_MEI1IP); + RCBA_SET_REG_32(D31IP, (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) | + (INTB << D31IP_SMIP) | (INTA << D31IP_SIP)), + RCBA_SET_REG_32(D30IP, (NOINT << D30IP_PIP)), + 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(D25IP, (NOINT << D25IP_LIP)), + RCBA_SET_REG_32(D22IP, (NOINT << D22IP_MEI1IP)), /* Device interrupt route registers */ - DIR_ROUTE(D31IR, PIRQF, PIRQG, PIRQH, PIRQA); - DIR_ROUTE(D29IR, PIRQD, PIRQE, PIRQF, PIRQG); - DIR_ROUTE(D28IR, PIRQB, PIRQC, PIRQD, PIRQE); - DIR_ROUTE(D27IR, PIRQG, PIRQH, PIRQA, PIRQB); - DIR_ROUTE(D26IR, PIRQE, PIRQF, PIRQG, PIRQH); - DIR_ROUTE(D25IR, PIRQA, PIRQB, PIRQC, PIRQD); - DIR_ROUTE(D22IR, PIRQA, PIRQB, PIRQC, PIRQD); - - /* Enable IOAPIC (generic) */ - RCBA16(OIC) = 0x0100; - /* PCH BWG says to read back the IOAPIC enable register */ - (void) RCBA16(OIC); + RCBA_SET_REG_32(D31IR, DIR_ROUTE(PIRQF, PIRQG, PIRQH, PIRQA)), + RCBA_SET_REG_32(D29IR, DIR_ROUTE(PIRQD, PIRQE, PIRQF, PIRQG)), + RCBA_SET_REG_32(D28IR, DIR_ROUTE(PIRQB, PIRQC, PIRQD, PIRQE)), + RCBA_SET_REG_32(D27IR, DIR_ROUTE(PIRQG, PIRQH, PIRQA, PIRQB)), + RCBA_SET_REG_32(D26IR, DIR_ROUTE(PIRQE, PIRQF, PIRQG, PIRQH)), + RCBA_SET_REG_32(D25IR, DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)), + RCBA_SET_REG_32(D22IR, DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)), /* Disable unused devices (board specific) */ - reg32 = RCBA32(FD); - reg32 |= PCH_DISABLE_ALWAYS; - RCBA32(FD) = reg32; -} + RCBA_RMW_REG_32(FD, ~0, PCH_DISABLE_ALWAYS), -// FIXME, this function is generic code that should go to sb/... or -// nb/../early_init.c -static void early_pch_init(void) -{ - u8 reg8; + /* Enable IOAPIC (generic) */ + RCBA_SET_REG_16(OIC, 0x0100), + /* PCH BWG says to read back the IOAPIC enable register */ + RCBA_READ_REG_16(OIC), - // reset rtc power status - reg8 = pci_read_config8(PCH_LPC_DEV, 0xa4); - reg8 &= ~(1 << 2); - pci_write_config8(PCH_LPC_DEV, 0xa4, reg8); -} + RCBA_END_CONFIG, +}; void main(unsigned long bist) { int boot_mode = 0; + int wake_from_s3; int cbmem_was_initted; - u32 pm1_cnt; - u16 pm1_sts; #if CONFIG_COLLECT_TIMESTAMPS tsc_t start_romstage_time; @@ -180,64 +152,26 @@ void main(unsigned long bist) if (bist == 0) enable_lapic(); - pch_enable_lpc(); - - /* Enable GPIOs */ - pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1); - pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10); - setup_pch_gpios(&mainboard_gpio_map); - - /* Early Console setup */ - console_init(); + wake_from_s3 = early_pch_init(&mainboard_gpio_map, &rcba_config[0]); /* Halt if there was a built in self test failure */ report_bist_failure(bist); - /* - * FIXME: MCHBAR isn't setup yet. It's setup in - * haswell_early_initialization(). - */ - if (MCHBAR16(SSKPD) == 0xCAFE) { - printk(BIOS_DEBUG, "soft reset detected\n"); - boot_mode = 1; - - /* System is not happy after keyboard reset... */ - printk(BIOS_DEBUG, "Issuing CF9 warm reset\n"); - outb(0x6, 0xcf9); - while (1) { - hlt(); - } - } - /* Perform some early chipset initialization required * before RAM initialization can work */ haswell_early_initialization(HASWELL_MOBILE); printk(BIOS_DEBUG, "Back from haswell_early_initialization()\n"); - /* Check PM1_STS[15] to see if we are waking from Sx */ - pm1_sts = inw(DEFAULT_PMBASE + PM1_STS); - - /* Read PM1_CNT[12:10] to determine which Sx state */ - pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT); - - if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) { + if (wake_from_s3) { #if CONFIG_HAVE_ACPI_RESUME printk(BIOS_DEBUG, "Resume from S3 detected.\n"); boot_mode = 2; - /* Clear SLP_TYPE. This will break stage2 but - * we care for that when we get there. - */ - outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT); #else printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n"); #endif } - post_code(0x38); - /* Enable SPD ROMs and DDR-III DRAM */ - enable_smbus(); - /* Prepare USB controller early in S3 resume */ if (boot_mode == 2) enable_usb_bar(); @@ -247,21 +181,17 @@ void main(unsigned long bist) #if CONFIG_COLLECT_TIMESTAMPS before_dram_time = rdtsc(); #endif + + report_platform_info(); + sdram_initialize(&pei_data); #if CONFIG_COLLECT_TIMESTAMPS after_dram_time = rdtsc(); #endif post_code(0x3b); - /* Perform some initialization that must run before stage2 */ - early_pch_init(); - post_code(0x3c); - /* This should probably go away. Until now it is required - * and mainboard specific - */ - rcba_config(); - post_code(0x3d); + intel_early_me_status(); quick_ram_check(); post_code(0x3e); diff --git a/src/northbridge/intel/haswell/early_init.c b/src/northbridge/intel/haswell/early_init.c index 505fbf1125..681af42adb 100644 --- a/src/northbridge/intel/haswell/early_init.c +++ b/src/northbridge/intel/haswell/early_init.c @@ -29,20 +29,6 @@ static void haswell_setup_bars(void) { - /* Setting up Southbridge. In the northbridge code. */ - printk(BIOS_DEBUG, "Setting up static southbridge registers..."); - pci_write_config32(PCI_DEV(0, 0x1f, 0), RCBA, DEFAULT_RCBA | 1); - - pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE, DEFAULT_PMBASE | 1); - pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44 /* ACPI_CNTL */ , 0x80); /* Enable ACPI BAR */ - - printk(BIOS_DEBUG, " done.\n"); - - printk(BIOS_DEBUG, "Disabling Watchdog reboot..."); - RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */ - outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */ - printk(BIOS_DEBUG, " done.\n"); - printk(BIOS_DEBUG, "Setting up static northbridge registers..."); /* Set up all hardcoded northbridge BARs */ pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1); @@ -62,14 +48,6 @@ static void haswell_setup_bars(void) pci_write_config8(PCI_DEV(0, 0x00, 0), PAM6, 0x33); printk(BIOS_DEBUG, " done.\n"); - -#if CONFIG_ELOG_BOOT_COUNT - /* Increment Boot Counter except when resuming from S3 */ - if ((inw(DEFAULT_PMBASE + PM1_STS) & WAK_STS) && - ((inl(DEFAULT_PMBASE + PM1_CNT) >> 10) & 7) == SLP_TYP_S3) - return; - boot_count_increment(); -#endif } static void haswell_setup_graphics(void) diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c index 0c68e60707..e2b085b3fd 100644 --- a/src/northbridge/intel/haswell/raminit.c +++ b/src/northbridge/intel/haswell/raminit.c @@ -32,8 +32,6 @@ #include "pei_data.h" #include "haswell.h" -/* Management Engine is in the southbridge */ -#include "southbridge/intel/lynxpoint/me.h" #if CONFIG_CHROMEOS #include <vendorcode/google/chromeos/chromeos.h> #else @@ -152,12 +150,6 @@ void sdram_initialize(struct pei_data *pei_data) struct sys_info sysinfo; unsigned long entry; - report_platform_info(); - - /* Wait for ME to be ready */ - intel_early_me_init(); - intel_early_me_uma_size(); - printk(BIOS_DEBUG, "Starting UEFI PEI System Agent\n"); memset(&sysinfo, 0, sizeof(sysinfo)); @@ -216,8 +208,6 @@ void sdram_initialize(struct pei_data *pei_data) version >> 24 , (version >> 16) & 0xff, (version >> 8) & 0xff, version & 0xff); - intel_early_me_status(); - report_memory_config(); /* S3 resume: don't save scrambler seed or MRC data */ @@ -232,7 +222,10 @@ struct cbmem_entry *get_cbmem_toc(void) unsigned long get_top_of_ram(void) { - /* Base of TSEG is top of usable DRAM */ + /* + * Base of TSEG is top of usable DRAM below 4GiB. The register has + * 1 MiB alignement. + */ u32 tom = pci_read_config32(PCI_DEV(0,0,0), TSEG); - return (unsigned long) tom; + return (unsigned long) tom & ~((1 << 20) - 1); } diff --git a/src/southbridge/intel/lynxpoint/Makefile.inc b/src/southbridge/intel/lynxpoint/Makefile.inc index c14a53881d..6e84ce61a8 100644 --- a/src/southbridge/intel/lynxpoint/Makefile.inc +++ b/src/southbridge/intel/lynxpoint/Makefile.inc @@ -45,7 +45,7 @@ smm-$(CONFIG_SPI_FLASH_SMM) += spi.c ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me_9.x.c finalize.c -romstage-y += early_usb.c early_smbus.c early_me.c me_status.c +romstage-y += early_usb.c early_smbus.c early_me.c me_status.c early_pch.c romstage-$(CONFIG_USBDEBUG) += usb_debug.c romstage-y += reset.c early_spi.c diff --git a/src/southbridge/intel/lynxpoint/early_pch.c b/src/southbridge/intel/lynxpoint/early_pch.c new file mode 100644 index 0000000000..d0a583fa1b --- /dev/null +++ b/src/southbridge/intel/lynxpoint/early_pch.c @@ -0,0 +1,172 @@ +/* + * This file is part of the coreboot project. + * + * 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 <console/console.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <device/pci_def.h> +#include <elog.h> +#include "pch.h" + +#if CONFIG_INTEL_LYNXPOINT_LP +#include "lp_gpio.h" +#else +#include "gpio.h" +#endif + +static void pch_enable_bars(void) +{ + /* Setting up Southbridge. In the northbridge code. */ + pci_write_config32(PCH_LPC_DEV, RCBA, DEFAULT_RCBA | 1); + + pci_write_config32(PCH_LPC_DEV, PMBASE, DEFAULT_PMBASE | 1); + /* Enable ACPI BAR */ + pci_write_config8(PCH_LPC_DEV, ACPI_CNTL, 0x80); + + pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1); + + /* Enable GPIO functionality. */ + pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10); +} + +static void pch_generic_setup(void) +{ + u8 reg8; + + printk(BIOS_DEBUG, "Disabling Watchdog reboot..."); + RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */ + outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */ + printk(BIOS_DEBUG, " done.\n"); + + // reset rtc power status + reg8 = pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3); + reg8 &= ~(1 << 2); + pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3, reg8); +} + +static int sleep_type_s3(void) +{ + u32 pm1_cnt; + u16 pm1_sts; + int is_s3 = 0; + + /* Check PM1_STS[15] to see if we are waking from Sx */ + pm1_sts = inw(DEFAULT_PMBASE + PM1_STS); + if (pm1_sts & WAK_STS) { + /* Read PM1_CNT[12:10] to determine which Sx state */ + pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT); + if (((pm1_cnt >> 10) & 7) == SLP_TYP_S3) { + /* Clear SLP_TYPE. */ + outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT); + is_s3 = 1; + } + } + return is_s3; +} + +static void pch_enable_lpc(void) +{ + device_t dev = PCH_LPC_DEV; + + /* Set COM1/COM2 decode range */ + pci_write_config16(dev, LPC_IO_DEC, 0x0010); + + /* Enable SuperIO + COM1 + PS/2 Keyboard/Mouse */ + u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | COMA_LPC_EN | KBC_LPC_EN; + pci_write_config16(dev, LPC_EN, lpc_config); +} + +static void pch_config_rcba(const struct rcba_config_instruction *rcba_config) +{ + const struct rcba_config_instruction *rc; + u32 value; + + rc = rcba_config; + while (rc->command != RCBA_COMMAND_END) + { + if ((rc->command & RCBA_REG_SIZE_MASK) == RCBA_REG_SIZE_16) { + switch (rc->command & RCBA_COMMAND_MASK) { + case RCBA_COMMAND_SET: + RCBA16(rc->reg) = (u16)rc->or_value; + break; + case RCBA_COMMAND_READ: + (void)RCBA16(rc->reg); + break; + case RCBA_COMMAND_RMW: + value = RCBA16(rc->reg); + value &= rc->mask; + value |= rc->or_value; + RCBA16(rc->reg) = (u16)value; + break; + } + } else { + switch (rc->command & RCBA_COMMAND_MASK) { + case RCBA_COMMAND_SET: + RCBA32(rc->reg) = rc->or_value; + break; + case RCBA_COMMAND_READ: + (void)RCBA32(rc->reg); + break; + case RCBA_COMMAND_RMW: + value = RCBA32(rc->reg); + value &= rc->mask; + value |= rc->or_value; + RCBA32(rc->reg) = value; + break; + } + } + rc++; + } +} + +int early_pch_init(const void *gpio_map, + const struct rcba_config_instruction *rcba_config) +{ + int wake_from_s3; + + pch_enable_lpc(); + + pch_enable_bars(); + +#if CONFIG_INTEL_LYNXPOINT_LP + setup_pch_lp_gpios(gpio_map); +#else + setup_pch_gpios(gpio_map); +#endif + + console_init(); + + pch_generic_setup(); + + /* Enable SMBus for reading SPDs. */ + enable_smbus(); + + pch_config_rcba(rcba_config); + + wake_from_s3 = sleep_type_s3(); + +#if CONFIG_ELOG_BOOT_COUNT + if (!wake_from_s3) + boot_count_increment(); +#endif + + /* Report if we are waking from s3. */ + return wake_from_s3; +} diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h index f265448a6a..f27ae90eab 100644 --- a/src/southbridge/intel/lynxpoint/pch.h +++ b/src/southbridge/intel/lynxpoint/pch.h @@ -102,6 +102,48 @@ void enable_smbus(void); void enable_usb_bar(void); int smbus_read_byte(unsigned device, unsigned address); int early_spi_read(u32 offset, u32 size, u8 *buffer); + +/* State Machine configuration. */ +#define RCBA_REG_SIZE_MASK 0x8000 +#define RCBA_REG_SIZE_16 0x8000 +#define RCBA_REG_SIZE_32 0x0000 +#define RCBA_COMMAND_MASK 0x000f +#define RCBA_COMMAND_SET 0x0001 +#define RCBA_COMMAND_READ 0x0002 +#define RCBA_COMMAND_RMW 0x0003 +#define RCBA_COMMAND_END 0x0007 + +#define RCBA_ENCODE_COMMAND(command_, reg_, mask_, or_value_) \ + { .command = command_, \ + .reg = reg_, \ + .mask = mask_, \ + .or_value = or_value_ \ + } +#define RCBA_SET_REG_32(reg_, value_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_32|RCBA_COMMAND_SET, reg_, 0, value_) +#define RCBA_READ_REG_32(reg_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_32|RCBA_COMMAND_READ, reg_, 0, 0) +#define RCBA_RMW_REG_32(reg_, mask_, or_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_32|RCBA_COMMAND_RMW, reg_, mask_, or_) +#define RCBA_SET_REG_16(reg_, value_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_16|RCBA_COMMAND_SET, reg_, 0, value_) +#define RCBA_READ_REG_16(reg_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_16|RCBA_COMMAND_READ, reg_, 0, 0) +#define RCBA_RMW_REG_16(reg_, mask_, or_) \ + RCBA_ENCODE_COMMAND(RCBA_REG_SIZE_16|RCBA_COMMAND_RMW, reg_, mask_, or_) +#define RCBA_END_CONFIG \ + RCBA_ENCODE_COMMAND(RCBA_COMMAND_END, 0, 0, 0) + +struct rcba_config_instruction +{ + u16 command; + u16 reg; + u32 mask; + u32 or_value; +}; + +int early_pch_init(const void *gpio_map, + const struct rcba_config_instruction *rcba_config); #endif /* * get GPIO pin value @@ -460,9 +502,9 @@ unsigned get_gpios(const int *gpio_num_array); #define SOFT_RESET_CTRL 0x38f4 #define SOFT_RESET_DATA 0x38f8 -#define DIR_ROUTE(x,a,b,c,d) \ - RCBA32(x) = (((d) << DIR_IDR) | ((c) << DIR_ICR) | \ - ((b) << DIR_IBR) | ((a) << DIR_IAR)) +#define DIR_ROUTE(a,b,c,d) \ + (((d) << DIR_IDR) | ((c) << DIR_ICR) | \ + ((b) << DIR_IBR) | ((a) << DIR_IAR)) #define RC 0x3400 /* 32bit */ #define HPTC 0x3404 /* 32bit */ |