mainboard: Add ASRock H81M-HDS

Tested with GRUB 2.02 as a payload, booting Debian GNU/Linux 9.5 with
kernel 4.9.

This board works quite well under coreboot. A list of what works and
what doesn't can be found in the documentation part of this commit.

The file `data.vbt` matches the VBT in the latest stable version of the
vendor firmware (version 2.20).

Change-Id: I53483bb9fa335e86e85dfc487fef03fce4b85e2a
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/29390
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 131 insertions, 0 deletions

diff --git a/src/mainboard/asrock/h81m-hds/romstage.c b/src/mainboard/asrock/h81m-hds/romstage.c
new file mode 100644
index 0000000000..f3c2b3bfdb
--- /dev/null
+++ b/src/mainboard/asrock/h81m-hds/romstage.c
@@ -0,0 +1,131 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2010 coresystems GmbH
+ * Copyright (C) 2012 Google Inc.
+ * Copyright (C) 2018 Tristan Corrick <tristan@corrick.kiwi>
+ *
+ * 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 <stdint.h>
+#include <cpu/intel/romstage.h>
+#include <cpu/intel/haswell/haswell.h>
+#include <northbridge/intel/haswell/haswell.h>
+#include <northbridge/intel/haswell/pei_data.h>
+#include <southbridge/intel/lynxpoint/pch.h>
+#include <superio/nuvoton/common/nuvoton.h>
+#include <superio/nuvoton/nct6776/nct6776.h>
+#include "gpio.h"
+
+static const struct rcba_config_instruction rcba_config[] = {
+	RCBA_SET_REG_16(D31IR, DIR_ROUTE(PIRQA, PIRQD, PIRQC, PIRQA)),
+	RCBA_SET_REG_16(D29IR, DIR_ROUTE(PIRQH, PIRQD, PIRQA, PIRQC)),
+	RCBA_SET_REG_16(D28IR, DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)),
+	RCBA_SET_REG_16(D27IR, DIR_ROUTE(PIRQG, PIRQB, PIRQC, PIRQD)),
+	RCBA_SET_REG_16(D26IR, DIR_ROUTE(PIRQA, PIRQF, PIRQC, PIRQD)),
+	RCBA_SET_REG_16(D25IR, DIR_ROUTE(PIRQE, PIRQF, PIRQG, PIRQH)),
+	RCBA_SET_REG_16(D22IR, DIR_ROUTE(PIRQA, PIRQD, PIRQC, PIRQB)),
+	RCBA_SET_REG_16(D20IR, DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)),
+
+	RCBA_RMW_REG_32(FD, ~0, PCH_DISABLE_ALWAYS),
+
+	RCBA_END_CONFIG,
+};
+
+void mainboard_config_superio(void)
+{
+	const pnp_devfn_t GLOBAL_PSEUDO_DEV = PNP_DEV(0x2e, 0);
+	const pnp_devfn_t SERIAL_DEV = PNP_DEV(0x2e, NCT6776_SP1);
+	const pnp_devfn_t ACPI_DEV = PNP_DEV(0x2e, NCT6776_ACPI);
+	const pnp_devfn_t IR_DEV = PNP_DEV(0x2e, NCT6776_SP2);
+
+	nuvoton_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
+
+	nuvoton_pnp_enter_conf_state(GLOBAL_PSEUDO_DEV);
+
+	/* Select HWM/LED functions instead of floppy functions. */
+	pnp_write_config(GLOBAL_PSEUDO_DEV, 0x1c, 0x03);
+	pnp_write_config(GLOBAL_PSEUDO_DEV, 0x24, 0x24);
+
+	/* Power RAM in S3 and let the PCH handle power failure actions. */
+	pnp_set_logical_device(ACPI_DEV);
+	pnp_write_config(ACPI_DEV, 0xe4, 0x70);
+
+	/*
+	 * Don't know what's needed here, just set the same as the vendor
+	 * firmware.
+	 */
+	pnp_set_logical_device(IR_DEV);
+	pnp_write_config(IR_DEV, 0xf1, 0x5c);
+
+	nuvoton_pnp_exit_conf_state(GLOBAL_PSEUDO_DEV);
+}
+
+void mainboard_romstage_entry(unsigned long bist)
+{
+	struct pei_data pei_data = {
+		.pei_version = PEI_VERSION,
+		.mchbar = (uintptr_t)DEFAULT_MCHBAR,
+		.dmibar = (uintptr_t)DEFAULT_DMIBAR,
+		.epbar = DEFAULT_EPBAR,
+		.pciexbar = DEFAULT_PCIEXBAR,
+		.smbusbar = SMBUS_IO_BASE,
+		.wdbbar = 0x4000000,
+		.wdbsize = 0x1000,
+		.hpet_address = HPET_ADDR,
+		.rcba = (uintptr_t)DEFAULT_RCBA,
+		.pmbase = DEFAULT_PMBASE,
+		.gpiobase = DEFAULT_GPIOBASE,
+		.temp_mmio_base = 0xfed08000,
+		.system_type = 1, /* desktop/server */
+		.tseg_size = CONFIG_SMM_TSEG_SIZE,
+		.spd_addresses = { 0xa0, 0x00, 0xa4, 0x00 },
+		.ec_present = 0,
+		.dimm_channel0_disabled = 2, /* Disable DIMM 1 on channel 0. */
+		.dimm_channel1_disabled = 2, /* Disable DIMM 1 on channel 1. */
+		.max_ddr3_freq = 1600,
+		.usb2_ports = {
+			/* Length, Enable, OCn#, Location */
+			{ 0x0040, 1, 0, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 0, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 1, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 1, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 2, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 2, USB_PORT_BACK_PANEL },
+			{ 0x0040, 0, USB_OC_PIN_SKIP, USB_PORT_SKIP },
+			{ 0x0040, 0, USB_OC_PIN_SKIP, USB_PORT_SKIP },
+			{ 0x0040, 1, 4, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 4, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 5, USB_PORT_BACK_PANEL },
+			{ 0x0040, 1, 5, USB_PORT_BACK_PANEL },
+			{ 0x0040, 0, USB_OC_PIN_SKIP, USB_PORT_SKIP },
+			{ 0x0040, 0, USB_OC_PIN_SKIP, USB_PORT_SKIP },
+		},
+		.usb3_ports = {
+			/* Enable, OCn# */
+			{ 1, 0 },
+			{ 1, 0 },
+			{ 0, USB_OC_PIN_SKIP },
+			{ 0, USB_OC_PIN_SKIP },
+			{ 0, USB_OC_PIN_SKIP },
+			{ 0, USB_OC_PIN_SKIP },
+		},
+	};
+
+	struct romstage_params romstage_params = {
+		.pei_data = &pei_data,
+		.gpio_map = &mainboard_gpio_map,
+		.rcba_config = &rcba_config[0],
+		.bist = bist,
+	};
+
+	romstage_common(&romstage_params);
+}