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authorArthur Heymans <arthur@aheymans.xyz>2019-11-19 18:37:28 +0100
committerKyösti Mälkki <kyosti.malkki@gmail.com>2019-11-21 06:38:45 +0000
commitc2c634a089fa990418c363e2ff2e5ff70bdd3580 (patch)
tree042e376cee473f72f143ed76768f50536ab323ef /src/southbridge/intel/fsp_rangeley/lpc.c
parent298619f6d9adde49b4279c906b0d20a41f919a61 (diff)
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nb/sb/cpu: Drop Intel Rangeley support
Relocatable ramstage, postcar stage and C_ENVIRONMENT_BOOTBLOCK are now mandatory features, which this platform lacks. Change-Id: I41589118579988617677cf48af5401bc35b23e05 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36980 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'src/southbridge/intel/fsp_rangeley/lpc.c')
-rw-r--r--src/southbridge/intel/fsp_rangeley/lpc.c461
1 files changed, 0 insertions, 461 deletions
diff --git a/src/southbridge/intel/fsp_rangeley/lpc.c b/src/southbridge/intel/fsp_rangeley/lpc.c
deleted file mode 100644
index d12c379ae6f6..000000000000
--- a/src/southbridge/intel/fsp_rangeley/lpc.c
+++ /dev/null
@@ -1,461 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008-2009 coresystems GmbH
- * Copyright (C) 2013 Sage Electronic Engineering, LLC.
- *
- * 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.
- */
-
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <pc80/mc146818rtc.h>
-#include <pc80/isa-dma.h>
-#include <pc80/i8259.h>
-#include <arch/io.h>
-#include <device/mmio.h>
-#include <device/pci_ops.h>
-#include <arch/ioapic.h>
-#include <arch/acpi.h>
-#include <arch/cpu.h>
-#include <cpu/x86/smm.h>
-#include <string.h>
-#include <cbmem.h>
-#include <arch/acpigen.h>
-#include "chip.h"
-#include "soc.h"
-#include "irq.h"
-#include "nvs.h"
-
-#define NMI_OFF 0
-
-typedef struct southbridge_intel_fsp_rangeley_config config_t;
-
-static void soc_enable_apic(struct device *dev)
-{
- int i;
- u32 reg32;
- volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR);
- volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10);
- u8 *ilb_base = (u8 *)(pci_read_config32(dev, IBASE) & ~0x0f);
-
- /*
- * Enable ACPI I/O and power management.
- * Set SCI IRQ to IRQ9
- */
- write32(ilb_base + ILB_OIC, 0x100); /* AEN */
- reg32 = read32(ilb_base + ILB_OIC); /* Read back per BWG */
- write32(ilb_base + ILB_ACTL, 0); /* ACTL bit 2:0 SCIS IRQ9 */
-
- *ioapic_index = 0;
- *ioapic_data = (1 << 25);
-
- /* Affirm full set of redirection table entries ("write once") */
- *ioapic_index = 1;
- reg32 = *ioapic_data;
- *ioapic_index = 1;
- *ioapic_data = reg32;
-
- *ioapic_index = 0;
- reg32 = *ioapic_data;
- printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", (reg32 >> 24) & 0x0f);
- if (reg32 != (1 << 25))
- die("APIC Error\n");
-
- printk(BIOS_SPEW, "Dumping IOAPIC registers\n");
- for (i=0; i<3; i++) {
- *ioapic_index = i;
- printk(BIOS_SPEW, " reg 0x%04x:", i);
- reg32 = *ioapic_data;
- printk(BIOS_SPEW, " 0x%08x\n", reg32);
- }
-
- *ioapic_index = 3; /* Select Boot Configuration register. */
- *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */
-}
-
-static void soc_enable_serial_irqs(struct device *dev)
-{
- u8 *ibase;
-
- ibase = (u8 *)(pci_read_config32(dev, IBASE) & ~0xF);
-
- /* Set packet length and toggle silent mode bit for one frame. */
- write8(ibase + ILB_SERIRQ_CNTL, (1 << 7));
-
-#if !CONFIG(SERIRQ_CONTINUOUS_MODE)
- write8(ibase + ILB_SERIRQ_CNTL, 0);
-#endif
-}
-
-/*
- * Write PCI config space IRQ assignments. PCI devices have the INT_LINE
- * (0x3C) and INT_PIN (0x3D) registers which report interrupt routing
- * information to operating systems and drivers. The INT_PIN register is
- * generally read only and reports which interrupt pin A - D it uses. The
- * INT_LINE register is configurable and reports which IRQ (generally the
- * PIC IRQs 1 - 15) it will use. This needs to take interrupt pin swizzling
- * on devices that are downstream on a PCI bridge into account.
- *
- * This function will loop through all enabled PCI devices and program the
- * INT_LINE register with the correct PIC IRQ number for the INT_PIN that it
- * uses. It then configures each interrupt in the pic to be level triggered.
- */
-static void write_pci_config_irqs(void)
-{
- struct device *irq_dev;
- struct device *targ_dev;
- uint8_t int_line = 0;
- uint8_t original_int_pin = 0;
- uint8_t new_int_pin = 0;
- uint16_t current_bdf = 0;
- uint16_t parent_bdf = 0;
- uint8_t pirq = 0;
- uint8_t device_num = 0;
- const struct rangeley_irq_route *ir = &global_rangeley_irq_route;
-
- if (ir == NULL) {
- printk(BIOS_WARNING, "Warning: Can't write PCI IRQ assignments because"
- " 'global_rangeley_irq_route' structure does not exist\n");
- return;
- }
-
- /*
- * Loop through all enabled devices and program their
- * INT_LINE, INT_PIN registers from values taken from
- * the Interrupt Route registers in the ILB
- */
- printk(BIOS_DEBUG, "PCI_CFG IRQ: Write PCI config space IRQ assignments\n");
- for (irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) {
-
- if ((irq_dev->path.type != DEVICE_PATH_PCI) ||
- (!irq_dev->enabled))
- continue;
-
- current_bdf = irq_dev->path.pci.devfn |
- irq_dev->bus->secondary << 8;
-
- /*
- * Step 1: Get the INT_PIN and device structure to look for
- * in the pirq_data table defined in the mainboard directory.
- */
- targ_dev = NULL;
- new_int_pin = get_pci_irq_pins(irq_dev, &targ_dev);
- if (targ_dev == NULL || new_int_pin < 1)
- continue;
-
- /* Get the original INT_PIN for record keeping */
- original_int_pin = pci_read_config8(irq_dev, PCI_INTERRUPT_PIN);
-
- parent_bdf = targ_dev->path.pci.devfn
- | targ_dev->bus->secondary << 8;
- device_num = PCI_SLOT(parent_bdf);
-
- if (ir->pcidev[device_num] == 0) {
- printk(BIOS_WARNING,
- "Warning: PCI Device %d does not have an IRQ entry, skipping it\n",
- device_num);
- continue;
- }
-
- /* Find the PIRQ that is attached to the INT_PIN this device uses */
- pirq = (ir->pcidev[device_num] >> ((new_int_pin - 1) * 4)) & 0xF;
-
- /* Get the INT_LINE this device/function will use */
- int_line = ir->pic[pirq];
-
- if (int_line != PIRQ_PIC_IRQDISABLE) {
- /* Set this IRQ to level triggered since it is used by a PCI device */
- i8259_configure_irq_trigger(int_line, IRQ_LEVEL_TRIGGERED);
- /* Set the Interrupt Line register in PCI config space */
- pci_write_config8(irq_dev, PCI_INTERRUPT_LINE, int_line);
- } else {
- /* Set the Interrupt line register as "unknown or unused" */
- pci_write_config8(irq_dev, PCI_INTERRUPT_LINE,
- PIRQ_PIC_UNKNOWN_UNUSED);
- }
-
- printk(BIOS_SPEW, "\tINT_PIN\t\t: %d (%s)\n",
- original_int_pin, pin_to_str(original_int_pin));
- if (parent_bdf != current_bdf)
- printk(BIOS_SPEW, "\tSwizzled to\t: %d (%s)\n",
- new_int_pin, pin_to_str(new_int_pin));
- printk(BIOS_SPEW, "\tPIRQ\t\t: %c\n"
- "\tINT_LINE\t: 0x%X (IRQ %d)\n",
- 'A' + pirq, int_line, int_line);
- }
- printk(BIOS_DEBUG, "PCI_CFG IRQ: Finished writing PCI config space IRQ assignments\n");
-}
-
-static void soc_pirq_init(struct device *dev)
-{
- int i, j;
- int pirq;
- u8 *ibase = (u8 *)(pci_read_config32(dev, IBASE) & ~0xF);
- u8 *pr_base = ibase + 0x08;
- u16 *ir_base = (u16 *)(ibase + 0x20);
- u32 *actl = (u32 *)ibase;
- const struct rangeley_irq_route *ir = &global_rangeley_irq_route;
-
- /* Set up the PIRQ PIC routing based on static config. */
- printk(BIOS_SPEW, "Start writing IRQ assignments\n"
- "PIRQ\tA\tB\tC\tD\tE\tF\tG\tH\n"
- "IRQ ");
- for (i = 0; i < NUM_PIRQS; i++) {
- write8(pr_base + i*sizeof(ir->pic[i]), ir->pic[i]);
- printk(BIOS_SPEW, "\t%d", ir->pic[i]);
- }
- printk(BIOS_SPEW, "\n\n");
-
- /* Set up the per device PIRQ routing based on static config. */
- printk(BIOS_SPEW, "\t\t\tPIRQ[A-H] routed to each INT_PIN[A-D]\n"
- "Dev\tINTA (IRQ)\tINTB (IRQ)\tINTC (IRQ)\tINTD (IRQ)\n");
- for (i = 0; i < NUM_OF_PCI_DEVS; i++) {
- write16(ir_base + i, ir->pcidev[i]);
-
- /* If the entry is more than just 0, print it out */
- if (ir->pcidev[i]) {
- printk(BIOS_SPEW, " %d: ", i);
- for (j = 0; j < 4; j++) {
- pirq = (ir->pcidev[i] >> (j * 4)) & 0xF;
- printk(BIOS_SPEW, "\t%-4c (%d)", 'A' + pirq, ir->pic[pirq]);
- }
- printk(BIOS_SPEW, "\n");
- }
- }
-
- /* Route SCI to IRQ9 */
- write32(actl, (read32(actl) & ~SCIS_MASK) | SCIS_IRQ9);
- printk(BIOS_SPEW, "Finished writing IRQ assignments\n");
-
- /* Write IRQ assignments to PCI config space */
- write_pci_config_irqs();
-}
-
-static void soc_power_options(struct device *dev)
-{
- u8 reg8;
- u16 pmbase;
- u32 reg32;
-
- /* Get the chip configuration */
- config_t *config = dev->chip_info;
-
- int nmi_option;
-
- /* Set up NMI on errors. */
- reg8 = inb(0x61);
- reg8 &= 0x0f; /* Higher Nibble must be 0 */
- reg8 &= ~(1 << 3); /* IOCHK# NMI Enable */
- // reg8 &= ~(1 << 2); /* PCI SERR# Enable */
- reg8 |= (1 << 2); /* PCI SERR# Disable for now */
- outb(reg8, 0x61);
-
- reg8 = inb(0x70);
- nmi_option = NMI_OFF;
- get_option(&nmi_option, "nmi");
- if (nmi_option) {
- printk(BIOS_INFO, "NMI sources enabled.\n");
- reg8 &= ~(1 << 7); /* Set NMI. */
- } else {
- printk(BIOS_INFO, "NMI sources disabled.\n");
- reg8 |= (1 << 7); /* Can't mask NMI from PCI-E and NMI_NOW */
- }
- outb(reg8, 0x70);
-
- pmbase = pci_read_config16(dev, ABASE) & ~0xf;
-
- outl(config->gpe0_en, pmbase + GPE0_EN);
- outw(config->alt_gp_smi_en, pmbase + ALT_GP_SMI_EN);
-
- /* Set up power management block and determine sleep mode */
- reg32 = inl(pmbase + PM1_CNT); // PM1_CNT
- reg32 &= ~(7 << 10); // SLP_TYP
- reg32 |= (1 << 0); // SCI_EN
- outl(reg32, pmbase + PM1_CNT);
-}
-
-/* Disable the HPET, Clear the counter, and re-enable it. */
-static void enable_hpet(void)
-{
- write8((u8 *)HPET_GCFG, 0x00);
- write32((u32 *)HPET_MCV, 0x00000000);
- write32((u32 *)(HPET_MCV + 0x04), 0x00000000);
- write8((u8 *)HPET_GCFG, 0x01);
-}
-
-static void soc_disable_smm_only_flashing(struct device *dev)
-{
- u8 reg8;
-
- printk(BIOS_SPEW, "Enabling BIOS updates outside of SMM... ");
- reg8 = pci_read_config8(dev, 0xdc); /* BIOS_CNTL */
- reg8 &= ~(1 << 5);
- pci_write_config8(dev, 0xdc, reg8);
-}
-
-static void lpc_init(struct device *dev)
-{
- printk(BIOS_DEBUG, "soc: lpc_init\n");
-
- /* Set the value for PCI command register. */
- pci_write_config16(dev, PCI_COMMAND, 0x000f);
-
- /* IO APIC initialization. */
- soc_enable_apic(dev);
-
- soc_enable_serial_irqs(dev);
-
- /* Setup the PIRQ. */
- soc_pirq_init(dev);
-
- /* Setup power options. */
- soc_power_options(dev);
-
- /* Initialize power management */
- switch (soc_silicon_type()) {
- case SOC_TYPE_RANGELEY:
- break;
- default:
- printk(BIOS_DEBUG, "Unknown Chipset: 0x%04x\n", dev->device);
- }
-
- /* Initialize ISA DMA. */
- isa_dma_init();
-
- /* Initialize the High Precision Event Timers, if present. */
- enable_hpet();
-
- setup_i8259();
-
- /* Interrupt 9 should be level triggered (SCI) */
- i8259_configure_irq_trigger(9, 1);
-
- soc_disable_smm_only_flashing(dev);
-}
-
-static void soc_lpc_read_resources(struct device *dev)
-{
- struct resource *res;
- config_t *config = dev->chip_info;
- u8 io_index = 0;
-
- /* Get the normal PCI resources of this device. */
- pci_dev_read_resources(dev);
-
- /* Add an extra subtractive resource for both memory and I/O. */
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = 0;
- res->size = 0x1000;
- res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
-
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = 0xff800000;
- res->size = 0x00800000; /* 8 MB for flash */
- res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
-
- res = new_resource(dev, 3); /* IOAPIC */
- res->base = IO_APIC_ADDR;
- res->size = 0x00001000;
- res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
-
- /* Set SOC IO decode ranges if required.*/
- if ((config->gen1_dec & 0xFFFC) > 0x1000) {
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = config->gen1_dec & 0xFFFC;
- res->size = (config->gen1_dec >> 16) & 0xFC;
- res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
- }
-
- if ((config->gen2_dec & 0xFFFC) > 0x1000) {
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = config->gen2_dec & 0xFFFC;
- res->size = (config->gen2_dec >> 16) & 0xFC;
- res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
- }
-
- if ((config->gen3_dec & 0xFFFC) > 0x1000) {
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = config->gen3_dec & 0xFFFC;
- res->size = (config->gen3_dec >> 16) & 0xFC;
- res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
- }
-
- if ((config->gen4_dec & 0xFFFC) > 0x1000) {
- res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0));
- res->base = config->gen4_dec & 0xFFFC;
- res->size = (config->gen4_dec >> 16) & 0xFC;
- res->flags = IORESOURCE_IO| IORESOURCE_SUBTRACTIVE |
- IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
- }
-}
-
-static void soc_lpc_enable_resources(struct device *dev)
-{
- return pci_dev_enable_resources(dev);
-}
-
-static void soc_lpc_enable(struct device *dev)
-{
- soc_enable(dev);
-}
-
-static void southbridge_inject_dsdt(struct device *dev)
-{
- global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
-
- if (gnvs) {
- memset(gnvs, 0, sizeof(*gnvs));
- acpi_create_gnvs(gnvs);
-
- /* And tell SMI about it */
- if (CONFIG(HAVE_SMI_HANDLER))
- smm_setup_structures(gnvs, NULL, NULL);
-
- /* Add it to DSDT. */
- acpigen_write_scope("\\");
- acpigen_write_name_dword("NVSA", (u32) gnvs);
- acpigen_pop_len();
- }
-}
-
-static struct pci_operations pci_ops = {
- .set_subsystem = pci_dev_set_subsystem,
-};
-
-static struct device_operations device_ops = {
- .read_resources = soc_lpc_read_resources,
- .set_resources = pci_dev_set_resources,
- .enable_resources = soc_lpc_enable_resources,
- .init = lpc_init,
- .write_acpi_tables = acpi_write_hpet,
- .acpi_inject_dsdt_generator = southbridge_inject_dsdt,
- .enable = soc_lpc_enable,
- .scan_bus = scan_static_bus,
- .ops_pci = &pci_ops,
-};
-
-/* IDs for LPC device of Intel 89xx Series Chipset */
-static const unsigned short pci_device_ids[] = { 0x1F38, 0x1F39, 0x1F3A, 0x1F3B,
- 0 };
-
-static const struct pci_driver soc_lpc __pci_driver = {
- .ops = &device_ops,
- .vendor = PCI_VENDOR_ID_INTEL,
- .devices = pci_device_ids,
-};