AMD/agesa: Add functions for AMD PCI IRQ routing

Port the changes that were made in amd/cimx to amd/agesa
as were done in:
   commit c93a75a5ab067f86104028b74d92fc54cb939cd5
   Author: Mike Loptien <mike.loptien@se-eng.com>
   Date:   Fri Jun 6 15:16:29 2014 -0600

      AMD/CIMx: Add functions for AMD PCI IRQ routing

This change also moves the PCI INT functions to
southbridge/amd so that they can be used by CIMX and
AGESA. The amd/persimmon board is updated for this
change.

Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Change-Id: I525be90f9cf8e825e162d53a7ecd1e69c6e27637
Reviewed-on: http://review.coreboot.org/6065
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

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)
 {