diff options
Diffstat (limited to 'src/southbridge/amd/cimx/cimx_util.c')
-rw-r--r-- | src/southbridge/amd/cimx/cimx_util.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/src/southbridge/amd/cimx/cimx_util.c b/src/southbridge/amd/cimx/cimx_util.c index 5d9276f78b..7909b68df9 100644 --- a/src/southbridge/amd/cimx/cimx_util.c +++ b/src/southbridge/amd/cimx/cimx_util.c @@ -21,204 +21,7 @@ #include <console/console.h> #include <device/pci.h> #include <arch/io.h> -#include <string.h> #include "cimx_util.h" -#include <pc80/i8259.h> - -#ifndef __PRE_RAM__ -#if IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB800) || \ - IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB900) -const char * intr_types[] = { - [0x00] = "INTA#\t", "INTB#\t", "INTC#\t", "INTD#\t", "INTE#\t", "INTF#\t", "INTG#\t", "INTH#\t", - [0x08] = "Misc\t", "Misc0\t", "Misc1\t", "Misc2\t", "Ser IRQ INTA", "Ser IRQ INTB", "Ser IRQ INTC", "Ser IRQ INTD", - [0x10] = "SCI\t", "SMBUS0\t", "ASF\t", "HDA\t", "FC\t\t", "GEC\t", "PerMon\t", - [0x20] = "IMC INT0\t", "IMC INT1\t", "IMC INT2\t", "IMC INT3\t", "IMC INT4\t", "IMC INT5\t", - [0x30] = "Dev18.0 INTA", "Dev18.2 INTB", "Dev19.0 INTA", "Dev19.2 INTB", "Dev22.0 INTA", "Dev22.2 INTB", "Dev20.5 INTC", - [0x40] = "IDE\t", "SATA\t", - [0x50] = "GPPInt0\t", "GPPInt1\t", "GPPInt2\t", "GPPInt3\t" -}; -#elif IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB700) -const char * intr_types[] = { - [0x00] = "INTA#\t", "INTB#\t", "INTC#\t", "INTD#\t", - [0x04] = "ACPI\t", "SMBUS\t", "RSVD\t", "RSVD\t", "RSVD\t", - [0x09] = "INTE#\t", "INTF#\t", "INTG#\t", "INTH#\t", -}; -#endif - -const struct pirq_struct * pirq_data_ptr = NULL; -u32 pirq_data_size = 0; -const u8 * intr_data_ptr = NULL; -const u8 * picr_data_ptr = NULL; - -/* - * Read the FCH PCI_INTR registers 0xC00/0xC01 at a - * given index and a given PIC (0) or IOAPIC (1) mode - */ -u8 read_pci_int_idx(u8 index, int mode) -{ - outb((mode << 7) | index, PCI_INTR_INDEX); - return inb(PCI_INTR_DATA); -} - -/* - * Write a value to the FCH PCI_INTR registers 0xC00/0xC01 - * at a given index and PIC (0) or IOAPIC (1) mode - */ -void write_pci_int_idx(u8 index, int mode, u8 data) -{ - outb((mode << 7) | index, PCI_INTR_INDEX); - outb(data, PCI_INTR_DATA); -} - -/* - * Write the FCH PCI_INTR registers 0xC00/0xC01 with values - * given in global variables intr_data and picr_data. - * These variables are defined in mainboard.c - */ -void write_pci_int_table (void) -{ - u8 byte; - - if(picr_data_ptr == NULL || intr_data_ptr == NULL){ - printk(BIOS_ERR, "Warning: Can't write PCI_INTR 0xC00/0xC01 registers because\n" - "'mainboard_picr_data' or 'mainboard_intr_data' tables are NULL\n"); - return; - } - - /* PIC IRQ routine */ - printk(BIOS_DEBUG, "PCI_INTR tables: Writing registers C00/C01 for PIC mode PCI IRQ routing:\n" - "\tPCI_INTR_INDEX\t\tPCI_INTR_DATA\n"); - for (byte = 0; byte < FCH_INT_TABLE_SIZE; byte++) { - if (intr_types[byte]) { - write_pci_int_idx(byte, 0, (u8) picr_data_ptr[byte]); - printk(BIOS_DEBUG, "\t0x%02X %s\t: 0x%02X\n", - byte, intr_types[byte], read_pci_int_idx(byte, 0)); - } - } - - /* APIC IRQ routine */ - printk(BIOS_DEBUG, "PCI_INTR tables: Writing registers C00/C01 for APIC mode PCI IRQ routing:\n" - "\tPCI_INTR_INDEX\t\tPCI_INTR_DATA\n"); - for (byte = 0; byte < FCH_INT_TABLE_SIZE; byte++) { - if (intr_types[byte]) { - write_pci_int_idx(byte, 1, (u8) intr_data_ptr[byte]); - printk(BIOS_DEBUG, "\t0x%02X %s\t: 0x%02X\n", - byte, intr_types[byte], read_pci_int_idx(byte, 1)); - } - } -} - -/* - * Function to write the PCI config space Interrupt - * registers based on the values given in PCI_INTR - * table at I/O port 0xC00/0xC01 - */ -void write_pci_cfg_irqs(void) -{ - device_t dev = NULL; /* Our current device to route IRQs to */ - device_t target_dev = NULL; /* The bridge that a device may be connected to */ - u16 int_pin = 0; /* Value of the INT_PIN register 0x3D */ - u16 target_pin = 0; /* Pin we will search our tables for */ - u16 int_line = 0; /* IRQ number read from PCI_INTR table and programmed to INT_LINE reg 0x3C */ - u16 pci_intr_idx = 0; /* Index into PCI_INTR table, 0xC00/0xC01 */ - u8 bus = 0; /* A PCI Device Bus number */ - u16 devfn = 0; /* A PCI Device and Function number */ - u8 bridged_device = 0; /* This device is on a PCI bridge */ - u32 i = 0; - - if (pirq_data_ptr == NULL) { - printk(BIOS_WARNING, "Warning: Can't write PCI IRQ assignments because" - " 'mainboard_pirq_data' structure does not exist\n"); - return; - } - - /* Populate the PCI cfg space header with the IRQ assignment */ - printk(BIOS_DEBUG, "PCI_CFG IRQ: Write PCI config space IRQ assignments\n"); - - for (dev = all_devices; dev; dev = dev->next) { - /* - * Step 1: Get the INT_PIN and device structure to look for in the - * PCI_INTR table pirq_data - */ - target_dev = NULL; - target_pin = get_pci_irq_pins(dev, &target_dev); - if (target_dev == NULL) - continue; - - if (target_pin < 1) - continue; - - /* Get the original INT_PIN for record keeping */ - int_pin = pci_read_config8(dev, PCI_INTERRUPT_PIN); - if (int_pin < 1 || int_pin > 4) - continue; /* Device has invalid INT_PIN so skip it */ - - bus = target_dev->bus->secondary; - devfn = target_dev->path.pci.devfn; - - /* - * Step 2: Use the INT_PIN and DevFn number to find the PCI_INTR - * register (0xC00) index for this device - */ - pci_intr_idx = 0xBAD; /* Will check to make sure it changed */ - for (i = 0; i < pirq_data_size; i++) { - if (pirq_data_ptr[i].devfn != devfn) - continue; - - /* PIN_A is index 0 in pirq_data array but 1 in PCI cfg reg */ - pci_intr_idx = pirq_data_ptr[i].PIN[target_pin - 1]; - printk(BIOS_SPEW, "\tFound this device in pirq_data table entry %d\n", i); - break; - } - - /* - * Step 3: Make sure we got a valid index and use it to get - * the IRQ number from the PCI_INTR register table - */ - if (pci_intr_idx == 0xBAD) { /* Not on a bridge or in pirq_data table, skip it */ - printk(BIOS_SPEW, "PCI Devfn (0x%x) not found in pirq_data table\n", devfn); - continue; - } else if (pci_intr_idx == 0x1F) { /* Index found is not defined */ - printk(BIOS_SPEW, "Got index 0x1F (Not Connected), perhaps this device was defined wrong?\n"); - continue; - } else if (pci_intr_idx >= FCH_INT_TABLE_SIZE) { /* Index out of bounds */ - printk(BIOS_ERR, "%s: got 0xC00/0xC01 table index 0x%x, max is 0x%x\n", - __func__, pci_intr_idx, FCH_INT_TABLE_SIZE); - continue; - } - - /* Find the value to program into the INT_LINE register from the PCI_INTR registers */ - int_line = read_pci_int_idx(pci_intr_idx, 0); - if (int_line == PIRQ_NC) { /* The IRQ found is disabled */ - printk(BIOS_SPEW, "Got IRQ 0x1F (disabled), perhaps this device was defined wrong?\n"); - continue; - } - - /* - * Step 4: Program the INT_LINE register in this device's - * PCI config space with the IRQ number we found in step 3 - * and make it Level Triggered - */ - pci_write_config8(dev, PCI_INTERRUPT_LINE, int_line); - - /* Set this IRQ to level triggered since it is used by a PCI device */ - i8259_configure_irq_trigger(int_line, IRQ_LEVEL_TRIGGERED); - - /* - * Step 5: Print out debug info and move on to next device - */ - printk(BIOS_SPEW, "\tOrig INT_PIN\t: %d (%s)\n", - int_pin, pin_to_str(int_pin)); - if (bridged_device) - printk(BIOS_SPEW, "\tSwizzled to\t: %d (%s)\n", - target_pin, pin_to_str(target_pin)); - printk(BIOS_SPEW, "\tPCI_INTR idx\t: 0x%02x (%s)\n" - "\tINT_LINE\t: 0x%X (IRQ %d)\n", - pci_intr_idx, intr_types[pci_intr_idx], int_line, int_line); - } /* for (dev = all_devices) */ - printk(BIOS_DEBUG, "PCI_CFG IRQ: Finished writing PCI config space IRQ assignments\n"); -} -#endif /* __PRE_RAM__ */ static void pmio_write_index(u16 port_base, u8 reg, u8 value) { |