mainboard/amd: Add padmelon board code

Padmelon board code was written for Merlin Falcon (family 15h models 60h-6fh),
but as the needed binaries are not yet merged (commit 33615), a config
HAVE_MERLINFALCON_BINARIES was added. If the binaries are not available,
the board defaults to Prairie Falcon, which use the same binaries as Stoney
Ridge. Once the binaries are merged, the config will be eliminated. Fan
control is done through F81803A SIO, and IRQ/GPIO and other board
characteristics are the same regardless of Merlin Falcon or Prairie Falcon.

Padmelon board was created to accept Prairie Falcon, Brown Falcon and Merlin
Falcon. The requested development was for Merlin Falcon. There are some small
spec changes (such as number of memory channels) between SOCs. Brown Falcon
was not investigated, Prairie Falcon is very similar to Stoney Ridge.

Started from Gardenia code, added changes created by Marc Jones and finally
revised against schematic, which added changes to GPIO settings.

BUG=none.
TEST=Both versions tested and boot to Linux using SeaBIOS.

Change-Id: I5a366ddeb4cfebd177a8744f6edb87aecd4787dd
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33993
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 132 insertions, 0 deletions

diff --git a/src/mainboard/amd/padmelon/mainboard.c b/src/mainboard/amd/padmelon/mainboard.c
new file mode 100644
index 0000000000..e106b4a170
--- /dev/null
+++ b/src/mainboard/amd/padmelon/mainboard.c
@@ -0,0 +1,132 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 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 <device/device.h>
+#include <arch/acpi.h>
+#include <amdblocks/agesawrapper.h>
+#include <amdblocks/amd_pci_util.h>
+#include <soc/pci_devs.h>
+#include <soc/southbridge.h>
+
+#include "gpio.h"
+
+/***********************************************************
+ * These arrays set up the FCH PCI_INTR registers 0xC00/0xC01.
+ * This table is responsible for physically routing the PIC and
+ * IOAPIC IRQs to the different PCI devices on the system.  It
+ * is read and written via registers 0xC00/0xC01 as an
+ * Index/Data pair.  These values are chipset and mainboard
+ * dependent and should be updated accordingly.
+ *
+ * These values are used by the PCI configuration space,
+ * MP Tables.
+ */
+const u8 mainboard_picr_data[] = {
+	[0x00] = 0x03, 0x04, 0x05, 0x07, 0x0B, 0x0A, 0x1F, 0x1F,
+	[0x08] = 0xFA, 0xF1, 0x00, 0x00, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x10] = 0x1F, 0x1F, 0x1F, 0x03, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x18] = 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x20] = 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00,
+	[0x28] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x30] = 0x05, 0x04, 0x05, 0x04, 0x04, 0x05, 0x04, 0x05,
+	[0x38] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x40] = 0x04, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x48] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x50] = 0x03, 0x04, 0x05, 0x07, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x58] = 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x60] = 0x1F, 0x1F, 0x07, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x68] = 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x70] = 0x03, 0x0F, 0x06, 0x0E, 0x0A, 0x0B, 0x1F, 0x1F,
+	[0x78] = 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F,
+};
+
+const u8 mainboard_intr_data[] = {
+	[0x00] = 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+	[0x08] = 0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F, 0x1F, 0x1F,
+	[0x10] = 0x09, 0x1F, 0x1F, 0x10, 0x1F, 0x1F, 0x1F, 0x10,
+	[0x18] = 0x1F, 0x1F, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x20] = 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00,
+	[0x28] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x30] = 0x12, 0x11, 0x12, 0x11, 0x12, 0x11, 0x12, 0x00,
+	[0x38] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x40] = 0x11, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x48] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x50] = 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00, 0x00, 0x00,
+	[0x58] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x60] = 0x1F, 0x1F, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x68] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	[0x70] = 0x03, 0x0F, 0x06, 0x0E, 0x0A, 0x0B, 0x1F, 0x1F,
+	[0x78] = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+/*
+ * This table defines the index into the picr/intr_data tables for each
+ * device.  Any enabled device and slot that uses hardware interrupts should
+ * have an entry in this table to define its index into the FCH PCI_INTR
+ * register 0xC00/0xC01.  This index will define the interrupt that it should
+ *  use. Putting PIRQ_A into the PIN A index for a device will tell that
+ * device to use PIC IRQ 10 if it uses PIN A for its hardware INT.
+ */
+static const struct pirq_struct mainboard_pirq_data[] = {
+	{ GFX_DEVFN,	{ PIRQ_A, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ HDA0_DEVFN,	{ PIRQ_NC, PIRQ_HDA, PIRQ_NC, PIRQ_NC } },
+	{ PCIE0_DEVFN,	{ PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D } },
+	{ PCIE1_DEVFN,	{ PIRQ_B, PIRQ_C, PIRQ_D, PIRQ_A } },
+	{ PCIE2_DEVFN,	{ PIRQ_C, PIRQ_D, PIRQ_A, PIRQ_B } },
+	{ PCIE3_DEVFN,	{ PIRQ_D, PIRQ_A, PIRQ_B, PIRQ_C } },
+	{ PCIE4_DEVFN,	{ PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D } },
+	{ PSP_DEVFN,	{ PIRQ_A, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ HDA1_DEVFN,	{ PIRQ_HDA, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ SD_DEVFN,	{ PIRQ_SD, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ SMBUS_DEVFN,	{ PIRQ_SMBUS, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ SATA_DEVFN,	{ PIRQ_SATA, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ EHCI1_DEVFN,	{ PIRQ_EHCI, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+	{ XHCI_DEVFN,	{ PIRQ_XHCI, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
+};
+
+/* PIRQ Setup */
+static void pirq_setup(void)
+{
+	pirq_data_ptr = mainboard_pirq_data;
+	pirq_data_size = ARRAY_SIZE(mainboard_pirq_data);
+	intr_data_ptr = mainboard_intr_data;
+	picr_data_ptr = mainboard_picr_data;
+}
+
+static void mainboard_init(void *chip_info)
+{
+	size_t num_gpios;
+	const struct soc_amd_gpio *gpios;
+	gpios = gpio_table(&num_gpios);
+	program_gpios(gpios, num_gpios);
+}
+
+/*************************************************
+ * enable the dedicated function in padmelon board.
+ *************************************************/
+static void padmelon_enable(struct device *dev)
+{
+	printk(BIOS_INFO, "Mainboard "
+				CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
+
+	/* Initialize the PIRQ data structures for consumption */
+	pirq_setup();
+}
+
+struct chip_operations mainboard_ops = {
+	.init = mainboard_init,
+	.enable_dev = padmelon_enable,
+};