mainboard/asus/am1i-a: add support for board ASUS AM1I-A

Add code to support the board ASUS AM1I-A. Tested with multiple payloads
and OSes with satisfactory results. S3 suspend/resume works fine with
Linux but has issues with Windows (an exception is thrown). However,
after manually rebooting, Windows resumes the suspended session.

* Tested with: SeaBIOS 1.11 + Linux 4.10 - OK
* Tested with: tianocore vEDK2017 + MS Windows 8.1 - OK
* Tested with: FILO 0.6.0 - hangs after showing the banner

Details are going to be published on the board's status page.

Change-Id: I3d9432849560df81536bbb2ce4c87cd265b820f7
Signed-off-by: Gergely Kiss <mail.gery@gmail.com>
Reviewed-on: https://review.coreboot.org/23002
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

1 files changed, 127 insertions, 0 deletions

diff --git a/src/mainboard/asus/am1i-a/mptable.c b/src/mainboard/asus/am1i-a/mptable.c
new file mode 100644
index 0000000000..bc7853b14d
--- /dev/null
+++ b/src/mainboard/asus/am1i-a/mptable.c
@@ -0,0 +1,127 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
+ * Copyright (C) 2018 Gergely Kiss <mail.gery@gmail.com>
+ *
+ * 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 <arch/ioapic.h>
+#include <string.h>
+#include <stdint.h>
+#include <arch/cpu.h>
+#include <cpu/x86/lapic.h>
+#include <southbridge/amd/common/amd_pci_util.h>
+#include <drivers/generic/ioapic/chip.h>
+
+static void *smp_write_config_table(void *v)
+{
+	struct mp_config_table *mc;
+	int bus_isa;
+
+	/*
+	 * By the time this function gets called, the IOAPIC registers
+	 * have been written so they can be read to get the correct
+	 * APIC ID and Version
+	 */
+	u8 ioapic_id = (io_apic_read(VIO_APIC_VADDR, 0x00) >> 24);
+	u8 ioapic_ver = (io_apic_read(VIO_APIC_VADDR, 0x01) & 0xFF);
+
+	/* Intialize the MP_Table */
+	mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
+
+	mptable_init(mc, LOCAL_APIC_ADDR);
+
+	/*
+	 * Type 0: Processor Entries:
+	 * LAPIC ID, LAPIC Version, CPU Flags:EN/BP,
+	 * CPU Signature (Stepping, Model, Family),
+	 * Feature Flags
+	 */
+	smp_write_processors(mc);
+
+	/*
+	 * Type 1: Bus Entries:
+	 * Bus ID, Bus Type
+	 */
+	mptable_write_buses(mc, NULL, &bus_isa);
+
+	/*
+	 * Type 2: I/O APICs:
+	 * APIC ID, Version, APIC Flags:EN, Address
+	 */
+	smp_write_ioapic(mc, ioapic_id, ioapic_ver, VIO_APIC_VADDR);
+
+	/*
+	 * Type 3: I/O Interrupt Table Entries:
+	 * Int Type, Int Polarity, Int Level, Source Bus ID,
+	 * Source Bus IRQ, Dest APIC ID, Dest PIN#
+	 */
+	mptable_add_isa_interrupts(mc, bus_isa, ioapic_id, 0);
+
+	/* PCI interrupts are level triggered, and are
+	 * associated with a specific bus/device/function tuple.
+	 */
+#define PCI_INT(bus, dev, fn, pin) \
+		smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, (bus), (((dev)<<2)|(fn)), ioapic_id, (pin))
+
+	/* APU Internal Graphic Device */
+	PCI_INT(0x0, 0x01, 0x0, intr_data_ptr[PIRQ_A]);
+	PCI_INT(0x0, 0x01, 0x1, intr_data_ptr[PIRQ_B]);
+
+	/* GPP Ports */
+	PCI_INT(0x0, 0x02, 0x0, intr_data_ptr[PIRQ_A]);
+	PCI_INT(0x0, 0x02, 0x1, intr_data_ptr[PIRQ_B]);
+	PCI_INT(0x0, 0x02, 0x2, intr_data_ptr[PIRQ_C]);
+	PCI_INT(0x0, 0x02, 0x3, intr_data_ptr[PIRQ_D]);
+
+	/* SATA */
+	PCI_INT(0x0, 0x11, 0x0, intr_data_ptr[PIRQ_SATA]);
+
+	/* USB */
+	PCI_INT(0x0, 0x10, 0x0, intr_data_ptr[PIRQ_C]); /* XHCI */
+	PCI_INT(0x0, 0x12, 0x0, intr_data_ptr[PIRQ_OHCI1]);
+	PCI_INT(0x0, 0x12, 0x1, intr_data_ptr[PIRQ_EHCI1]);
+	PCI_INT(0x0, 0x13, 0x0, intr_data_ptr[PIRQ_OHCI2]);
+	PCI_INT(0x0, 0x13, 0x1, intr_data_ptr[PIRQ_EHCI2]);
+
+	/* Southbridge HD Audio */
+	PCI_INT(0x0, 0x14, 0x0, intr_data_ptr[PIRQ_HDA]);
+
+	/* PCIe slot & Onboard NIC */
+	PCI_INT(0x1, 0x0, 0x0, intr_data_ptr[PIRQ_A]);
+	PCI_INT(0x1, 0x0, 0x1, intr_data_ptr[PIRQ_B]);
+	PCI_INT(0x1, 0x0, 0x2, intr_data_ptr[PIRQ_C]);
+	PCI_INT(0x1, 0x0, 0x3, intr_data_ptr[PIRQ_D]);
+	PCI_INT(0x2, 0x0, 0x0, intr_data_ptr[PIRQ_B]);
+
+	/*Local 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));
+
+	IO_LOCAL_INT(mp_ExtINT, 0x0, MP_APIC_ALL, 0x0);
+	IO_LOCAL_INT(mp_NMI, 0x0, 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);
+}