SIO: Add smsc/sch4037 superio support

Change-Id: I3b113a27541b8efd096f3bd44e6621344ec916a5
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/562
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
diff --git a/src/superio/smsc/Kconfig b/src/superio/smsc/Kconfig
index 7378d18..ddd5b96 100644
--- a/src/superio/smsc/Kconfig
+++ b/src/superio/smsc/Kconfig
@@ -2,6 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ## Copyright (C) 2009 Ronald G. Minnich
+## Copyright (C) 2012 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
@@ -39,3 +40,5 @@
 	bool
 config SUPERIO_SMSC_SMSCSUPERIO
 	bool
+config SUPERIO_SMSC_SCH4037
+	bool
diff --git a/src/superio/smsc/Makefile.inc b/src/superio/smsc/Makefile.inc
index 68d4d56..bfdc68e 100644
--- a/src/superio/smsc/Makefile.inc
+++ b/src/superio/smsc/Makefile.inc
@@ -2,6 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ## Copyright (C) 2009 Ronald G. Minnich
+## Copyright (C) 2012 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
@@ -28,3 +29,4 @@
 subdirs-y += sio10n268
 subdirs-y += kbc1100
 subdirs-y += smscsuperio
+subdirs-y += sch4037
diff --git a/src/superio/smsc/sch4037/Makefile.inc b/src/superio/smsc/sch4037/Makefile.inc
new file mode 100644
index 0000000..8f36f2a
--- /dev/null
+++ b/src/superio/smsc/sch4037/Makefile.inc
@@ -0,0 +1,20 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2012 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.
+#
+# 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_SMSC_SCH4037) += superio.c
diff --git a/src/superio/smsc/sch4037/chip.h b/src/superio/smsc/sch4037/chip.h
new file mode 100644
index 0000000..3223750
--- /dev/null
+++ b/src/superio/smsc/sch4037/chip.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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.
+ *
+ * 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
+ */
+
+#ifndef SUPERIO_SCH_4037_CHIP_H
+#define SUPERIO_SCH_4037_CHIP_H
+
+#include <pc80/keyboard.h>
+#include <uart8250.h>
+
+struct chip_operations;
+extern struct chip_operations superio_smsc_sch4037_ops;
+
+struct superio_smsc_sch4037_config {
+
+	struct pc_keyboard keyboard;
+};
+
+#endif //SUPERIO_SCH_4037_CHIP_H
\ No newline at end of file
diff --git a/src/superio/smsc/sch4037/sch4037.h b/src/superio/smsc/sch4037/sch4037.h
new file mode 100644
index 0000000..8dff3b8
--- /dev/null
+++ b/src/superio/smsc/sch4037/sch4037.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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.
+ *
+ * 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
+ */
+
+#ifndef SUPERIO_SCH_4037_H
+#define SUPERIO_SCH_4037_H
+
+
+#define SCH4037_FDD              0            /* FDD */
+#define SCH4037_LPT              3            /* LPT */
+#define SMSCSUPERIO_SP1          4            /* Com1 */
+#define SMSCSUPERIO_SP2          5            /* Com2 */
+#define SCH4037_RTC              6            /* RTC */
+#define SCH4037_KBC              7            /* KBC */
+#define SCH4037_HWM              8            /* HWM */
+#define SCH4037_RUNTIME          0x0A         /* Runtime */
+#define SCH4037_XBUS             0x0B         /* X-BUS */
+
+#endif //SUPERIO_SCH_4037_H
diff --git a/src/superio/smsc/sch4037/sch4037_early_init.c b/src/superio/smsc/sch4037/sch4037_early_init.c
new file mode 100644
index 0000000..9c74062
--- /dev/null
+++ b/src/superio/smsc/sch4037/sch4037_early_init.c
@@ -0,0 +1,69 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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.
+ *
+ * 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/romcc_io.h>
+#include "sch4037.h"
+
+static inline void pnp_enter_conf_state(device_t dev)
+{
+	unsigned port = dev>>8;
+	outb(0x55, port);
+}
+
+static void pnp_exit_conf_state(device_t dev)
+{
+	unsigned port = dev>>8;
+	outb(0xaa, port);
+}
+
+static inline void sch4037_early_init(unsigned port)
+{
+	device_t dev;
+
+	dev = PNP_DEV(port, SMSCSUPERIO_SP1);
+	pnp_enter_conf_state(dev);
+
+	/* Auto power management */
+	pnp_write_config(dev, 0x22, 0x38); /* BIT3+BIT4+BIT5 */
+	pnp_write_config(dev, 0x23, 0 );
+
+	/* Enable SMSC UART 0 */
+	dev = PNP_DEV(port, SMSCSUPERIO_SP1);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+
+	pnp_set_iobase(dev, PNP_IDX_IO0, CONFIG_TTYS0_BASE);
+	pnp_set_irq(dev, PNP_IDX_IRQ0, 0x4);
+
+	/* Enabled High speed, disabled MIDI support. */
+	pnp_write_config(dev, 0xF0, 0x02);
+	pnp_set_enable(dev, 1);
+
+	/* Enable keyboard */
+	dev = PNP_DEV(port, SCH4037_KBC);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_irq(dev, 0x70, 1);   /* IRQ 1 */
+	pnp_set_irq(dev, 0x72, 12);   /* IRQ 12 */
+	pnp_set_enable(dev, 1);
+
+	pnp_exit_conf_state(dev);
+}
+
diff --git a/src/superio/smsc/sch4037/superio.c b/src/superio/smsc/sch4037/superio.c
new file mode 100644
index 0000000..eebcacd
--- /dev/null
+++ b/src/superio/smsc/sch4037/superio.c
@@ -0,0 +1,123 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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.
+ *
+ * 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
+ */
+
+/* RAM driver for the SMSC KBC1100 Super I/O chip */
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <console/console.h>
+#include <device/smbus.h>
+#include <string.h>
+#include <bitops.h>
+#include <uart8250.h>
+#include <pc80/keyboard.h>
+#include <stdlib.h>
+#include "chip.h"
+#include "sch4037.h"
+
+/* Forward declarations */
+static void enable_dev(device_t dev);
+static void sch4037_pnp_set_resources(device_t dev);
+static void sch4037_pnp_enable_resources(device_t dev);
+static void sch4037_pnp_enable(device_t dev);
+static void sch4037_init(device_t dev);
+
+static void pnp_enter_conf_state(device_t dev);
+static void pnp_exit_conf_state(device_t dev);
+
+struct chip_operations superio_smsc_sch4037_ops = {
+	CHIP_NAME("SMSC SCH4037 Super I/O")
+		.enable_dev = enable_dev,
+};
+
+static struct device_operations ops = {
+	.read_resources   = pnp_read_resources,
+	.set_resources    = sch4037_pnp_set_resources,
+	.enable_resources = sch4037_pnp_enable_resources,
+	.enable           = sch4037_pnp_enable,
+	.init             = sch4037_init,
+};
+
+static struct pnp_info pnp_dev_info[] = {
+	{ &ops, SCH4037_KBC,  PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
+};
+
+static void enable_dev(device_t dev)
+{
+	printk(BIOS_SPEW, "file '%s',line %d, %s()\n", __FILE__, __LINE__, __func__);
+	pnp_enable_devices(dev, &pnp_ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
+}
+
+static void sch4037_pnp_set_resources(device_t dev)
+{
+	pnp_enter_conf_state(dev);
+	pnp_set_resources(dev);
+	pnp_exit_conf_state(dev);
+}
+
+static void sch4037_pnp_enable_resources(device_t dev)
+{
+	pnp_enter_conf_state(dev);
+	pnp_enable_resources(dev);
+	pnp_exit_conf_state(dev);
+}
+
+static void sch4037_pnp_enable(device_t dev)
+{
+	pnp_enter_conf_state(dev);
+	pnp_set_logical_device(dev);
+
+	if(dev->enabled) {
+		pnp_set_enable(dev, 1);
+	}
+	else {
+		pnp_set_enable(dev, 0);
+	}
+	pnp_exit_conf_state(dev);
+}
+
+static void sch4037_init(device_t dev)
+{
+	struct superio_smsc_sch4037_config *conf = dev->chip_info;
+	struct resource *res0, *res1;
+
+	if (!dev->enabled) {
+		return;
+	}
+
+	switch(dev->path.pnp.device) {
+
+		case SCH4037_KBC:
+			res0 = find_resource(dev, PNP_IDX_IO0);
+			res1 = find_resource(dev, PNP_IDX_IO1);
+			pc_keyboard_init(&conf->keyboard);
+			break;
+	}
+}
+
+static void pnp_enter_conf_state(device_t dev)
+{
+	outb(0x55, dev->path.pnp.port);
+}
+
+static void pnp_exit_conf_state(device_t dev)
+{
+	outb(0xaa, dev->path.pnp.port);
+}