superio/ite/it8623e: add support for SIO chip ITE IT8623E

This change adds basic support for the SuperIO chip ITE IT8623E.
Due to the lack of a datasheet, defaults are shown as "not available (NA)"
in superiotool's register dump. LDNs defined in it8623e.h are
definitely correct and working as expected.

Change-Id: I05832c4db7ab59541337f11200640316376e792e
Signed-off-by: Gergely Kiss <mail.gery@gmail.com>
Reviewed-on: https://review.coreboot.org/23001
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

5 files changed, 145 insertions, 0 deletions

diff --git a/src/superio/ite/Makefile.inc b/src/superio/ite/Makefile.inc
index f27a3335f2..382dbd7310 100644
--- a/src/superio/ite/Makefile.inc
+++ b/src/superio/ite/Makefile.inc
@@ -19,6 +19,7 @@ romstage-$(CONFIG_SUPERIO_ITE_COMMON_ROMSTAGE) += common/early_serial.c
 ## include generic ite environment controller driver
 ramstage-$(CONFIG_SUPERIO_ITE_ENV_CTRL) += common/env_ctrl.c
 
+subdirs-y += it8623e
 subdirs-y += it8671f
 subdirs-y += it8712f
 subdirs-y += it8716f
diff --git a/src/superio/ite/it8623e/Kconfig b/src/superio/ite/it8623e/Kconfig
new file mode 100644
index 0000000000..1b4fe4a8bd
--- /dev/null
+++ b/src/superio/ite/it8623e/Kconfig
@@ -0,0 +1,20 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2009 Ronald G. Minnich
+## Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
+## Copyright (C) 2017 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.
+##
+
+config SUPERIO_ITE_IT8623E
+	bool
+	select SUPERIO_ITE_COMMON_ROMSTAGE
diff --git a/src/superio/ite/it8623e/Makefile.inc b/src/superio/ite/it8623e/Makefile.inc
new file mode 100644
index 0000000000..2afaecfd75
--- /dev/null
+++ b/src/superio/ite/it8623e/Makefile.inc
@@ -0,0 +1,18 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2017 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; 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.
+##
+
+ramstage-$(CONFIG_SUPERIO_ITE_IT8623E) += superio.c
diff --git a/src/superio/ite/it8623e/it8623e.h b/src/superio/ite/it8623e/it8623e.h
new file mode 100644
index 0000000000..25670c58af
--- /dev/null
+++ b/src/superio/ite/it8623e/it8623e.h
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2017 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; 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.
+ */
+
+#ifndef SUPERIO_ITE_IT8623E_H
+#define SUPERIO_ITE_IT8623E_H
+
+/* Datasheet not available. The list of LDNs might not be complete. */
+
+#define IT8623E_FDC  0x00 /* Floppy Controller */
+#define IT8623E_SP1  0x01 /* Com1 */
+#define IT8623E_SP2  0x02 /* Com2 */
+#define IT8623E_PP   0x03 /* Parallel port */
+#define IT8623E_EC   0x04 /* Environment controller */
+#define IT8623E_KBCK 0x05 /* PS/2 keyboard */
+#define IT8623E_KBCM 0x06 /* PS/2 mouse */
+#define IT8623E_GPIO 0x07 /* GPIO */
+
+#endif /* SUPERIO_ITE_IT8623E_H */
diff --git a/src/superio/ite/it8623e/superio.c b/src/superio/ite/it8623e/superio.c
new file mode 100644
index 0000000000..e1ae5036a9
--- /dev/null
+++ b/src/superio/ite/it8623e/superio.c
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de>
+ * Copyright (C) 2017 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; 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.
+ */
+
+#include <device/device.h>
+#include <device/pnp.h>
+#include <pc80/keyboard.h>
+#include <arch/io.h>
+#include <stdlib.h>
+#include <superio/conf_mode.h>
+
+#include "it8623e.h"
+
+static void it8623e_init(struct device *dev)
+{
+
+	if (!dev->enabled)
+		return;
+
+	switch (dev->path.pnp.device) {
+	case IT8623E_EC:
+		break;
+	case IT8623E_KBCK:
+		pc_keyboard_init(NO_AUX_DEVICE);
+		break;
+	case IT8623E_KBCM:
+		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             = it8623e_init,
+	.ops_pnp_mode     = &pnp_conf_mode_870155_aa,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+	{ &ops, IT8623E_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x0ff8, },
+	{ &ops, IT8623E_SP1, PNP_IO0 | PNP_IRQ0, 0x0ff8, },
+	{ &ops, IT8623E_SP2, PNP_IO0 | PNP_IRQ0, 0x0ff8, },
+	{ &ops, IT8623E_PP, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_DRQ0, 0x0ff8, 0x0ff8, },
+	{ &ops, IT8623E_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x0ff0, 0x0ff0, },
+	{ &ops, IT8623E_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x0fff, 0x0fff, },
+	{ &ops, IT8623E_KBCM, PNP_IRQ0, },
+	{ &ops, IT8623E_GPIO, PNP_IO0 | PNP_IO1 | PNP_IO2 | PNP_IRQ0, 0x0fff, 0x0fe0, 0x0fff, },
+};
+
+static void enable_dev(struct device *dev)
+{
+	pnp_enable_devices(dev, &ops,
+		ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
+}
+
+struct chip_operations superio_ite_it8623e_ops = {
+	CHIP_NAME("ITE IT8623E Super I/O")
+	.enable_dev = enable_dev,
+};