Initial revision.

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2026 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

5 files changed, 574 insertions, 0 deletions

diff --git a/src/superio/smsc/lpc47n217/Config.lb b/src/superio/smsc/lpc47n217/Config.lb
new file mode 100644
index 0000000000..2a8ae62d76
--- /dev/null
+++ b/src/superio/smsc/lpc47n217/Config.lb
@@ -0,0 +1,2 @@
+config chip.h

+object superio.o

diff --git a/src/superio/smsc/lpc47n217/chip.h b/src/superio/smsc/lpc47n217/chip.h
new file mode 100644
index 0000000000..723c729656
--- /dev/null
+++ b/src/superio/smsc/lpc47n217/chip.h
@@ -0,0 +1,15 @@
+#ifndef SIO_COM1

+#define SIO_COM1_BASE   0x3F8

+#endif

+#ifndef SIO_COM2

+#define SIO_COM2_BASE   0x2F8

+#endif

+

+struct chip_operations;

+extern struct chip_operations superio_smsc_lpc47n217_ops;

+

+#include <uart8250.h>

+

+struct superio_smsc_lpc47n217_config {

+	struct uart8250 com1, com2;

+};

diff --git a/src/superio/smsc/lpc47n217/lpc47n217.h b/src/superio/smsc/lpc47n217/lpc47n217.h
new file mode 100644
index 0000000000..15c3d29e35
--- /dev/null
+++ b/src/superio/smsc/lpc47n217/lpc47n217.h
@@ -0,0 +1,8 @@
+// These are arbitrary, but must match declarations in the mainboard config file.

+// Values chosen to match SMSC 47B37x.

+

+#define LPC47N217_PP               3   /* Parallel Port */

+#define LPC47N217_SP1              4   /* Com1 */

+#define LPC47N217_SP2              5   /* Com2 */

+

+#define LPC47N217_MAX_CONFIG_REGISTER	0x39

diff --git a/src/superio/smsc/lpc47n217/lpc47n217_early_serial.c b/src/superio/smsc/lpc47n217/lpc47n217_early_serial.c
new file mode 100644
index 0000000000..afe55367d9
--- /dev/null
+++ b/src/superio/smsc/lpc47n217/lpc47n217_early_serial.c
@@ -0,0 +1,155 @@
+/*

+ * $Header: /home/cvs/BIR/ca-cpu/freebios/src/superio/smsc/lpc47n217/lpc47n217_early_serial.c,v 1.1.1.1 2005/07/11 15:28:51 smagnani Exp $

+ *

+ * lpc47n217_early_serial.c: Pre-RAM driver for SMSC LPC47N217 Super I/O chip

+ *

+ * Copyright (C) 2005 Digital Design Corporation

+ *

+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

+ *

+ * $Log: lpc47n217_early_serial.c,v $

+ * Revision 1.1.1.1  2005/07/11 15:28:51  smagnani

+ * Initial revision.

+ *

+ *

+ */

+

+#include <arch/romcc_io.h>

+#include <assert.h>

+#include "lpc47n217.h"

+

+//----------------------------------------------------------------------------------

+// Function:    	pnp_enter_conf_state

+// Parameters:  	dev - high 8 bits = Super I/O port

+// Return Value:	None

+// Description: 	Enable access to the LPC47N217's configuration registers.

+//

+static inline void pnp_enter_conf_state(device_t dev) {

+	unsigned port = dev>>8;

+    outb(0x55, port);

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	pnp_exit_conf_state

+// Parameters:  	dev - high 8 bits = Super I/O port

+// Return Value:	None

+// Description: 	Disable access to the LPC47N217's configuration registers.

+//

+static void pnp_exit_conf_state(device_t dev) {

+	unsigned port = dev>>8;

+    outb(0xaa, port);

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	lpc47n217_pnp_set_iobase

+// Parameters:  	dev - high 8 bits = Super I/O port, 

+//						  low 8 bits = logical device number (per lpc47n217.h)

+//					iobase - base I/O port for the logical device

+// Return Value:	None

+// Description: 	Program the base I/O port for the specified logical device.

+//

+void lpc47n217_pnp_set_iobase(device_t dev, unsigned iobase)

+{

+	// LPC47N217 requires base ports to be a multiple of 4

+	ASSERT(!(iobase & 0x3));

+

+	switch(dev & 0xFF) {

+	case LPC47N217_PP: 

+		pnp_write_config(dev, 0x23, (iobase >> 2) & 0xff);

+		break;

+		

+	case LPC47N217_SP1: 

+		pnp_write_config(dev, 0x24, (iobase >> 2) & 0xff);

+		break;

+		

+	case LPC47N217_SP2:

+		pnp_write_config(dev, 0x25, (iobase >> 2) & 0xff);

+		break;

+		

+	default:

+		break;

+	}

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	lpc47n217_pnp_set_enable

+// Parameters:  	dev - high 8 bits = Super I/O port, 

+//						  low 8 bits = logical device number (per lpc47n217.h)

+//					enable - 0 to disable, anythig else to enable

+// Return Value:	None

+// Description: 	Enable or disable the specified logical device.

+//					Technically, a full disable requires setting the device's base

+//					I/O port below 0x100. We don't do that here, because we don't

+//					have access to a data structure that specifies what the 'real'

+//					base port is (when asked to enable the device). Also the function

+//					is used only to disable the device while its true base port is

+//					programmed (see lpc47n217_enable_serial() below).

+//

+void lpc47n217_pnp_set_enable(device_t dev, int enable)

+{

+	uint8_t power_register = 0;

+	uint8_t power_mask = 0;

+	uint8_t current_power;

+	uint8_t new_power;

+	

+	switch(dev & 0xFF) {

+	case LPC47N217_PP: 

+		power_register = 0x01;

+		power_mask = 0x04;

+		break;

+		

+	case LPC47N217_SP1: 

+		power_register = 0x02;

+		power_mask = 0x08;

+		break;

+		

+	case LPC47N217_SP2:

+		power_register = 0x02;

+		power_mask = 0x80;

+		break;

+		

+	default:

+		return;

+	}

+

+	current_power = pnp_read_config(dev, power_register);

+	new_power = current_power & ~power_mask;		// disable by default

+

+	if (enable)

+		new_power |= power_mask;		// Enable

+

+	pnp_write_config(dev, power_register, new_power);

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	lpc47n217_enable_serial

+// Parameters:  	dev - high 8 bits = Super I/O port, 

+//						  low 8 bits = logical device number (per lpc47n217.h)

+//					iobase - processor I/O port address to assign to this serial device

+// Return Value:	bool

+// Description: 	Configure the base I/O port of the specified serial device

+//					and enable the serial device.

+//

+static void lpc47n217_enable_serial(device_t dev, unsigned iobase)

+{

+	// NOTE: Cannot use pnp_set_XXX() here because they assume chip

+	//		 support for logical devices, which the LPC47N217 doesn't have

+	

+	pnp_enter_conf_state(dev);

+	lpc47n217_pnp_set_enable(dev, 0);

+	lpc47n217_pnp_set_iobase(dev, iobase);

+	lpc47n217_pnp_set_enable(dev, 1);

+	pnp_exit_conf_state(dev);

+}

diff --git a/src/superio/smsc/lpc47n217/superio.c b/src/superio/smsc/lpc47n217/superio.c
new file mode 100644
index 0000000000..a85606e37c
--- /dev/null
+++ b/src/superio/smsc/lpc47n217/superio.c
@@ -0,0 +1,394 @@
+/*

+ * $Header: /home/cvs/BIR/ca-cpu/freebios/src/superio/smsc/lpc47n217/superio.c,v 1.1.1.1 2005/07/11 15:28:51 smagnani Exp $

+ *

+ * superio.c: RAM-based driver for SMSC LPC47N217 Super I/O chip

+ *

+ * Based on LinuxBIOS code for SMSC 47B397:

+ * Copyright 2000  AG Electronics Ltd.

+ * Copyright 2003-2004 Linux Networx

+ * Copyright 2004 Tyan 

+ *

+ * Copyright (C) 2005 Digital Design Corporation

+ *

+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

+ *

+ * $Log: superio.c,v $

+ * Revision 1.1.1.1  2005/07/11 15:28:51  smagnani

+ * Initial revision.

+ *

+ *

+ */

+

+#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 <assert.h>

+#include "chip.h"

+#include "lpc47n217.h"

+

+// Forward declarations

+static void enable_dev(device_t dev);

+void lpc47n217_pnp_set_resources(device_t dev);

+void lpc47n217_pnp_enable_resources(device_t dev);

+void lpc47n217_pnp_enable(device_t dev);

+static void lpc47n217_init(device_t dev);

+

+static void lpc47n217_pnp_set_resource(device_t dev, struct resource *resource);

+void lpc47n217_pnp_set_iobase(device_t dev, unsigned iobase);

+void lpc47n217_pnp_set_drq(device_t dev, unsigned drq);

+void lpc47n217_pnp_set_irq(device_t dev, unsigned irq);

+void lpc47n217_pnp_set_enable(device_t dev, int enable);

+

+static void pnp_enter_conf_state(device_t dev);

+static void pnp_exit_conf_state(device_t dev);

+

+

+struct chip_operations superio_smsc_lpc47n217_ops = {

+	CHIP_NAME("smsc lpc47n217")

+	.enable_dev = enable_dev,

+};

+

+static struct device_operations ops = {

+	.read_resources   = pnp_read_resources,

+	.set_resources    = lpc47n217_pnp_set_resources,

+	.enable_resources = lpc47n217_pnp_enable_resources,

+	.enable           = lpc47n217_pnp_enable,

+	.init             = lpc47n217_init,

+};

+

+static struct pnp_info pnp_dev_info[] = {

+        { &ops, LPC47N217_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },

+        { &ops, LPC47N217_SP1,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },

+        { &ops, LPC47N217_SP2,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, }

+};

+

+/**********************************************************************************/

+/*								PUBLIC INTERFACE								  */

+/**********************************************************************************/

+

+//----------------------------------------------------------------------------------

+// Function:    	enable_dev

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Create device structures and allocate resources to devices 

+//					specified in the pnp_dev_info array (above).

+//

+static void enable_dev(device_t dev)

+{

+	pnp_enable_devices(dev, &pnp_ops, 

+					   sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]), 

+					   pnp_dev_info);

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	lpc47n217_pnp_set_resources

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Configure the specified Super I/O device with the resources

+//					(I/O space, etc.) that have been allocate for it.

+//

+void lpc47n217_pnp_set_resources(device_t dev)

+{

+	int i;

+	

+	pnp_enter_conf_state(dev);  

+

+	// NOTE: Cannot use pnp_set_resources() here because it assumes chip

+	//		 support for logical devices, which the LPC47N217 doesn't have

+	for(i = 0; i < dev->resources; i++)

+		lpc47n217_pnp_set_resource(dev, &dev->resource[i]);

+

+//	dump_pnp_device(dev);

+                

+   	pnp_exit_conf_state(dev);  

+}       

+

+void lpc47n217_pnp_enable_resources(device_t dev)

+{       

+    pnp_enter_conf_state(dev);

+

+	// NOTE: Cannot use pnp_enable_resources() here because it assumes chip

+	//		 support for logical devices, which the LPC47N217 doesn't have

+    lpc47n217_pnp_set_enable(dev, 1);

+

+    pnp_exit_conf_state(dev);

+}

+

+void lpc47n217_pnp_enable(device_t dev)

+{

+	pnp_enter_conf_state(dev);   

+

+	// NOTE: Cannot use pnp_set_enable() here because it assumes chip

+	//		 support for logical devices, which the LPC47N217 doesn't have

+

+	if(dev->enabled) {

+		lpc47n217_pnp_set_enable(dev, 1);

+	}

+	else {

+		lpc47n217_pnp_set_enable(dev, 0);

+	}

+

+	pnp_exit_conf_state(dev);  

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	lpc47n217_init

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Initialize the specified Super I/O device.

+//					Devices other than COM ports are ignored.

+//					For COM ports, we configure the baud rate. 

+//

+static void lpc47n217_init(device_t dev)

+{

+	struct superio_smsc_lpc47n217_config* conf = dev->chip_info;

+	struct resource *res0;

+

+	if (!dev->enabled)

+		return;

+

+	switch(dev->path.u.pnp.device) {

+	case LPC47N217_SP1: 

+		res0 = find_resource(dev, PNP_IDX_IO0);

+		init_uart8250(res0->base, &conf->com1);

+		break;

+

+	case LPC47N217_SP2:

+		res0 = find_resource(dev, PNP_IDX_IO0);

+		init_uart8250(res0->base, &conf->com2);

+		break;

+	}

+}

+

+

+/**********************************************************************************/

+/*								PRIVATE FUNCTIONS							      */

+/**********************************************************************************/

+

+static void lpc47n217_pnp_set_resource(device_t dev, struct resource *resource)

+{

+	if (!(resource->flags & IORESOURCE_ASSIGNED)) {

+		printk_err("ERROR: %s %02x not allocated\n",

+			dev_path(dev), resource->index);

+		return;

+	}

+

+	/* Now store the resource */

+	// NOTE: Cannot use pnp_set_XXX() here because they assume chip

+	//		 support for logical devices, which the LPC47N217 doesn't have

+

+	if (resource->flags & IORESOURCE_IO) {

+		lpc47n217_pnp_set_iobase(dev, resource->base);

+	}

+	else if (resource->flags & IORESOURCE_DRQ) {

+		lpc47n217_pnp_set_drq(dev, resource->base);

+	}

+	else if (resource->flags  & IORESOURCE_IRQ) {

+		lpc47n217_pnp_set_irq(dev, resource->base);

+	}

+	else {

+		printk_err("ERROR: %s %02x unknown resource type\n",

+			dev_path(dev), resource->index);

+		return;

+	}

+	resource->flags |= IORESOURCE_STORED;

+

+	report_resource_stored(dev, resource, "");

+}

+

+void lpc47n217_pnp_set_iobase(device_t dev, unsigned iobase)

+{

+	ASSERT(!(iobase & 0x3));

+	

+	switch(dev->path.u.pnp.device) {

+	case LPC47N217_PP: 

+		pnp_write_config(dev, 0x23, (iobase >> 2) & 0xff);

+		break;

+		

+	case LPC47N217_SP1: 

+		pnp_write_config(dev, 0x24, (iobase >> 2) & 0xff);

+		break;

+		

+	case LPC47N217_SP2:

+		pnp_write_config(dev, 0x25, (iobase >> 2) & 0xff);

+		break;

+		

+	default:

+		BUG();

+		break;

+	}

+}

+

+void lpc47n217_pnp_set_drq(device_t dev, unsigned drq)

+{

+	if (dev->path.u.pnp.device == LPC47N217_PP) {

+		const uint8_t PP_DMA_MASK = 0x0F;

+		const uint8_t PP_DMA_SELECTION_REGISTER = 0x26;

+		uint8_t current_config = pnp_read_config(dev, PP_DMA_SELECTION_REGISTER);

+		uint8_t new_config;

+

+		ASSERT(!(drq & ~PP_DMA_MASK));		// DRQ out of range??		

+		new_config = (current_config & ~PP_DMA_MASK) | drq;

+		pnp_write_config(dev, PP_DMA_SELECTION_REGISTER, new_config);

+	} else {

+		BUG();

+	}

+}

+

+void lpc47n217_pnp_set_irq(device_t dev, unsigned irq)

+{

+	uint8_t irq_config_register = 0;

+	uint8_t irq_config_mask = 0;

+	uint8_t current_config;

+	uint8_t new_config;

+	

+	switch(dev->path.u.pnp.device) {

+	case LPC47N217_PP: 

+		irq_config_register = 0x27;

+		irq_config_mask = 0x0F;

+		break;

+		

+	case LPC47N217_SP1: 

+		irq_config_register = 0x28;

+		irq_config_mask = 0xF0;

+		irq <<= 4;

+		break;

+		

+	case LPC47N217_SP2:

+		irq_config_register = 0x28;

+		irq_config_mask = 0x0F;

+		break;

+		

+	default:

+		BUG();

+		return;

+	}

+

+	ASSERT(!(irq & ~irq_config_mask));		// IRQ out of range??

+	

+	current_config = pnp_read_config(dev, irq_config_register);

+	new_config = (current_config & ~irq_config_mask) | irq;

+	pnp_write_config(dev, irq_config_register, new_config);

+}

+

+void lpc47n217_pnp_set_enable(device_t dev, int enable)

+{

+	uint8_t power_register = 0;

+	uint8_t power_mask = 0;

+	uint8_t current_power;

+	uint8_t new_power;

+	

+	switch(dev->path.u.pnp.device) {

+	case LPC47N217_PP: 

+		power_register = 0x01;

+		power_mask = 0x04;

+		break;

+		

+	case LPC47N217_SP1: 

+		power_register = 0x02;

+		power_mask = 0x08;

+		break;

+		

+	case LPC47N217_SP2:

+		power_register = 0x02;

+		power_mask = 0x80;

+		break;

+		

+	default:

+		BUG();

+		return;

+	}

+

+	current_power = pnp_read_config(dev, power_register);

+	new_power = current_power & ~power_mask;		// disable by default

+

+	if (enable) {

+		struct resource* ioport_resource = find_resource(dev, PNP_IDX_IO0);

+		lpc47n217_pnp_set_iobase(dev, ioport_resource->base);

+		

+		new_power |= power_mask;		// Enable

+		

+    } else {

+		lpc47n217_pnp_set_iobase(dev, 0);

+	}

+	pnp_write_config(dev, power_register, new_power);

+}

+

+

+//----------------------------------------------------------------------------------

+// Function:    	pnp_enter_conf_state

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Enable access to the LPC47N217's configuration registers.

+//

+static void pnp_enter_conf_state(device_t dev) 

+{

+	outb(0x55, dev->path.u.pnp.port);

+}

+

+//----------------------------------------------------------------------------------

+// Function:    	pnp_exit_conf_state

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Disable access to the LPC47N217's configuration registers.

+//

+static void pnp_exit_conf_state(device_t dev) 

+{

+    outb(0xaa, dev->path.u.pnp.port);

+}

+

+#if 0

+//----------------------------------------------------------------------------------

+// Function:    	dump_pnp_device

+// Parameters:  	dev - pointer to structure describing a Super I/O device 

+// Return Value:	None

+// Description: 	Print the values of all of the LPC47N217's configuration registers.

+//					NOTE: The LPC47N217 must be in configuration mode when this

+//						  function is called.

+//

+static void dump_pnp_device(device_t dev)

+{

+    int register_index;

+    print_debug("\r\n");

+

+    for(register_index = 0; register_index <= LPC47N217_MAX_CONFIG_REGISTER; register_index++) {

+        uint8_t register_value;

+

+        if ((register_index & 0x0f) == 0) {

+                print_debug_hex8(register_index);

+                print_debug_char(':');

+        }

+

+		// Skip over 'register' that would cause exit from configuration mode

+	    if (register_index == 0xaa)

+			register_value = 0xaa;

+		else

+        	register_value = pnp_read_config(dev, register_index);

+

+        print_debug_char(' ');

+        print_debug_hex8(register_value);

+        if ((register_index & 0x0f) == 0x0f) {

+        	print_debug("\r\n");

+        }

+    }

+

+   	print_debug("\r\n");

+}

+#endif