superio/nuvoton: Add support for Nuvoton NCT6776

Add support for both NCT6776D and NCT6776F devices.

Change-Id: If6686ea0a1cd6be537e286699b4ee8f88ba8ad7c
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: http://review.coreboot.org/5450
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

3 files changed, 178 insertions, 0 deletions

diff --git a/src/superio/nuvoton/nct6776/Makefile.inc b/src/superio/nuvoton/nct6776/Makefile.inc
new file mode 100755
index 0000000000..45bd755a40
--- /dev/null
+++ b/src/superio/nuvoton/nct6776/Makefile.inc
@@ -0,0 +1,22 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
+## Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
+##
+## 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; either version 2 of the License, or
+## (at your option) any later version.
+##
+## 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.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+##
+
+ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6776) += superio.c
diff --git a/src/superio/nuvoton/nct6776/nct6776.h b/src/superio/nuvoton/nct6776/nct6776.h
new file mode 100755
index 0000000000..f6f31efb7d
--- /dev/null
+++ b/src/superio/nuvoton/nct6776/nct6776.h
@@ -0,0 +1,62 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+/* Both NCT6776D and NCT6776F package variants are supported. */
+
+#ifndef SUPERIO_NUVOTON_NCT6776_H
+#define SUPERIO_NUVOTON_NCT6776_H
+
+/* Logical Device Numbers (LDN). */
+#define NCT6776_FDC		0x00 /* Floppy */
+#define NCT6776_PP		0x01 /* Parallel port */
+#define NCT6776_SP1		0x02 /* Com1 */
+#define NCT6776_SP2		0x03 /* Com2 & IR */
+#define NCT6776_KBC		0x05 /* PS/2 keyboard and mouse */
+#define NCT6776_CIR		0x06
+#define NCT6776_GPIO6789_V	0x07
+#define NCT6776_WDT1_GPIO01A_V	0x08
+#define NCT6776_GPIO1234567_V	0x09
+#define NCT6776_ACPI		0x0A
+#define NCT6776_HWM_FPLED	0x0B /* Hardware monitor & front LED */
+#define NCT6776_VID		0x0D
+#define NCT6776_CIRWKUP		0x0E /* CIR wakeup */
+#define NCT6776_GPIO_PP_OD	0x0F /* GPIO Push-Pull/Open drain select */
+#define NCT6776_SVID		0x14
+#define NCT6776_DSLP		0x16 /* Deep sleep */
+#define NCT6776_GPIOA_LDN	0x17
+
+/* virtual LDN for GPIO and WDT */
+#define NCT6776_WDT1		((0 << 8) | NCT6776_WDT1_GPIO01A_V)
+
+#define NCT6776_GPIOBASE	((0 << 8) | NCT6776_WDT1_GPIO01A_V) //?
+
+#define NCT6776_GPIO0		((1 << 8) | NCT6776_WDT1_GPIO01A_V)
+#define NCT6776_GPIO1		((1 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO2		((2 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO3		((3 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO4		((4 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO5		((5 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO6		((6 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO7		((7 << 8) | NCT6776_GPIO1234567_V)
+#define NCT6776_GPIO8		((0 << 8) | NCT6776_GPIO6789_V)
+#define NCT6776_GPIO9		((1 << 8) | NCT6776_GPIO6789_V)
+#define NCT6776_GPIOA		((2 << 8) | NCT6776_WDT1_GPIO01A_V)
+
+#endif /* SUPERIO_NUVOTON_NCT6776_H */
diff --git a/src/superio/nuvoton/nct6776/superio.c b/src/superio/nuvoton/nct6776/superio.c
new file mode 100755
index 0000000000..d58fe03748
--- /dev/null
+++ b/src/superio/nuvoton/nct6776/superio.c
@@ -0,0 +1,94 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc.
+ * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
+ * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <pc80/keyboard.h>
+#include <stdlib.h>
+#include <superio/conf_mode.h>
+
+#include "nct6776.h"
+
+/* Both NCT6776D and NCT6776F package variants are supported. */
+
+static void nct6776_init(struct device *dev)
+{
+	if (!dev->enabled)
+		return;
+
+	switch(dev->path.pnp.device) {
+	/* TODO: Might potentially need code for HWM or FDC etc. */
+	case NCT6776_KBC:
+		pc_keyboard_init();
+		break;
+	}
+}
+
+static struct device_operations ops = {
+	.read_resources   = pnp_read_resources,
+	.set_resources    = pnp_set_resources,
+	.enable_resources = pnp_enable_resources,
+	.enable           = pnp_alt_enable,
+	.init             = nct6776_init,
+	.ops_pnp_mode     = &pnp_conf_mode_8787_aa,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+	{ &ops, NCT6776_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_SP1, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_SP2, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x0fff, 0}, {0x0fff, 4}, },
+	{ &ops, NCT6776_CIR, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_ACPI},
+	{ &ops, NCT6776_HWM_FPLED, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x0ffe, 0}, {0x0ffe, 4}, },
+	{ &ops, NCT6776_VID},
+	{ &ops, NCT6776_CIRWKUP, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_GPIO_PP_OD},
+	{ &ops, NCT6776_SVID},
+	{ &ops, NCT6776_DSLP},
+	{ &ops, NCT6776_GPIOA_LDN},
+	{ &ops, NCT6776_WDT1},
+	{ &ops, NCT6776_GPIOBASE, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, },
+	{ &ops, NCT6776_GPIO0},
+	{ &ops, NCT6776_GPIO1},
+	{ &ops, NCT6776_GPIO2},
+	{ &ops, NCT6776_GPIO3},
+	{ &ops, NCT6776_GPIO4},
+	{ &ops, NCT6776_GPIO5},
+	{ &ops, NCT6776_GPIO6},
+	{ &ops, NCT6776_GPIO7},
+	{ &ops, NCT6776_GPIO8},
+	{ &ops, NCT6776_GPIO9},
+	{ &ops, NCT6776_GPIOA},
+};
+
+static void enable_dev(struct device *dev)
+{
+	pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
+}
+
+struct chip_operations superio_nuvoton_nct6776_ops = {
+	CHIP_NAME("NUVOTON NCT6776 Super I/O")
+	.enable_dev = enable_dev,
+};