/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2011 - 2012 Advanced Micro Devices, 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.
 */


#include <console/console.h>
#include <arch/smp/mpspec.h>
#include <device/pci.h>
#include <arch/io.h>
#include <string.h>
#include <stdint.h>
#include <arch/cpu.h>
#include <cpu/x86/lapic.h>

static void *smp_write_config_table(void *v)
{
	struct mp_config_table *mc;
	int bus_isa;
	u32 apicid_sp5100;
	u32 apicid_sr5650;
	device_t dev;
	u32 *dword;

	mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
	mptable_init(mc, LOCAL_APIC_ADDR);

	smp_write_processors(mc);
	mptable_write_buses(mc, NULL, &bus_isa);

	/*
	 * AGESA v5 Apply apic enumeration rules
	 * For systems with >= 16 APICs, put the IO-APICs at 0..n and
	 * put the local-APICs at m..z
	 * For systems with < 16 APICs, put the Local-APICs at 0..n and
	 * put the IO-APICs at (n + 1)..z
	 */
	if (CONFIG_MAX_CPUS >= 16)
		apicid_sp5100 = 0x0;
	else
		apicid_sp5100 = CONFIG_MAX_CPUS + 1;
	apicid_sr5650 = apicid_sp5100 + 1;

	dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
	if (dev) {
		/* Set SP5100 IOAPIC ID */
		dword = (u32 *)(uintptr_t)(pci_read_config32(dev, 0x74) & 0xfffffff0);
		smp_write_ioapic(mc, apicid_sp5100, 0x20, dword);

#ifdef UNUSED_CODE
		u8 byte;
		/* Initialize interrupt mapping */
		/* aza */
		byte = pci_read_config8(dev, 0x63);
		byte &= 0xf8;
		byte |= 0; /* 0: INTA, ...., 7: INTH */
		pci_write_config8(dev, 0x63, byte);
		/* SATA */
		dword = pci_read_config32(dev, 0xAC);
		dword = dword & ~(7 << 26);
		dword = dword | (6 << 26); /* 0: INTA, ...., 7: INTH */
		/* dword |= 1 << 22; PIC and APIC co exists */
		pci_write_config32(dev, 0xAC, dword);
#endif

		/*
		 * 00:12.0: PROG SATA : INT F
		 * 00:13.0: INTA USB_0
		 * 00:13.1: INTB USB_1
		 * 00:13.2: INTC USB_2
		 * 00:13.3: INTD USB_3
		 * 00:13.4: INTC USB_4
		 * 00:13.5: INTD USB2
		 * 00:14.1: INTA IDE
		 * 00:14.2: Prog HDA : INT E
		 * 00:14.5: INTB ACI
		 * 00:14.6: INTB MCI
		 */

		/* Set RS5650 IOAPIC ID */
		dev = dev_find_slot(0, PCI_DEVFN(0, 0));
		if (dev) {
			pci_write_config32(dev, 0xF8, 0x1);
			dword = (u32 *)(uintptr_t)(pci_read_config32(dev, 0xFC) & 0xfffffff0);
			smp_write_ioapic(mc, apicid_sr5650, 0x20, dword);
		}

	}

	/* I/O Ints:    Type    Polarity    Trigger     Bus ID   IRQ    APIC ID PIN# */
#define IO_LOCAL_INT(type, intr, apicid, pin) \
	smp_write_lintsrc(mc, (type), MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, bus_isa, (intr), (apicid), (pin));

	mptable_add_isa_interrupts(mc, bus_isa, apicid_sp5100, 0);

	/* PCI interrupts are level triggered, and are
	 * associated with a specific bus/device/function tuple.
	 */
#define PCI_INT(bus, dev, int_sign, pin) \
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, (bus), (((dev)<<2)|(int_sign)), apicid_sp5100, (pin))

	/* SMBUS */
	//PCI_INT(0x0, 0x14, 0x0, 0x10); //not generate interrupt, 3Ch hardcoded to 0

	/* HD Audio */
	PCI_INT(0x0, 0x14, 0x2, 0x10);

	/* USB */
	/* OHCI0, OHCI1 hard-wired to 01h, corresponding to using INTA# */
	/* EHCI hard-wired to 02h, corresponding to using INTB# */
	/* USB1 */
	PCI_INT(0x0, 0x12, 0x0, 0x10); /* OHCI0 Port 0~2 */
	PCI_INT(0x0, 0x12, 0x1, 0x10); /* OHCI1 Port 3~5 */
	PCI_INT(0x0, 0x12, 0x2, 0x11); /* EHCI Port 0~5 */

	/* USB2 */
	PCI_INT(0x0, 0x13, 0x0, 0x10); /* OHCI0 Port 6~8 */
	PCI_INT(0x0, 0x13, 0x1, 0x10); /* OHCI1 Port 9~11 */
	PCI_INT(0x0, 0x13, 0x2, 0x11); /* EHCI Port 6~11 */

	/* USB3 EHCI hard-wired to 03h, corresponding to using INTC# */
	PCI_INT(0x0, 0x14, 0x5, 0x12); /* OHCI0 Port 12~13 */

	/* SATA */
	PCI_INT(0x0, 0x11, 0x0, 0x16); //6, INTG

	/* PCI slots */
	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
	if (dev && dev->enabled) {
		u8 bus_pci = dev->link_list->secondary;
		/* PCI_SLOT 0. */
		PCI_INT(bus_pci, 0x5, 0x0, 0x14);
		PCI_INT(bus_pci, 0x5, 0x1, 0x15);
		PCI_INT(bus_pci, 0x5, 0x2, 0x16);
		PCI_INT(bus_pci, 0x5, 0x3, 0x17);

		/* PCI_SLOT 1. */
		PCI_INT(bus_pci, 0x6, 0x0, 0x15);
		PCI_INT(bus_pci, 0x6, 0x1, 0x16);
		PCI_INT(bus_pci, 0x6, 0x2, 0x17);
		PCI_INT(bus_pci, 0x6, 0x3, 0x14);

		/* PCI_SLOT 2. */
		PCI_INT(bus_pci, 0x7, 0x0, 0x16);
		PCI_INT(bus_pci, 0x7, 0x1, 0x17);
		PCI_INT(bus_pci, 0x7, 0x2, 0x14);
		PCI_INT(bus_pci, 0x7, 0x3, 0x15);
	}

	/*Local Ints:   Type    Polarity    Trigger     Bus ID   IRQ    APIC ID PIN# */
	IO_LOCAL_INT(mp_ExtINT, 0, MP_APIC_ALL, 0x0);
	IO_LOCAL_INT(mp_NMI, 0, MP_APIC_ALL, 0x1);
	/* There is no extension information... */

	/* Compute the checksums */
	return mptable_finalize(mc);
}

unsigned long write_smp_table(unsigned long addr)
{
	void *v;
	v = smp_write_floating_table(addr, 0);
	return (unsigned long)smp_write_config_table(v);
}