From patchwork Tue Feb  1 08:08:38 2011
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Subject: [v2] Add Lenovo PMH7
Date: Tue, 01 Feb 2011 08:08:38 -0000
From: Sven Schnelle <svens@stackframe.org>
X-Patchwork-Id: 2589
Message-Id: <87k4hknkhr.fsf@begreifnix.stackframe.org>
To: coreboot@coreboot.org

Hi List,

this patch adds support for the Lenovo PMH7 (Power Management Hardware
Hub) found in most recent (starting with X60/T60 AFAIK) Lenovo/IBM
Laptops. Please ignore the previous version, as it missed the
src/ec/Kconfig file.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Acked-by: Patrick Georgi <patrick.georgi@secunet.com>


Index: src/ec/Kconfig
===================================================================
--- src/ec/Kconfig	(revision 6304)
+++ src/ec/Kconfig	(working copy)
@@ -1 +1,2 @@
 source src/ec/acpi/Kconfig
+source src/ec/lenovo/Kconfig
Index: src/ec/lenovo/Kconfig
===================================================================
--- src/ec/lenovo/Kconfig	(revision 0)
+++ src/ec/lenovo/Kconfig	(revision 0)
@@ -0,0 +1 @@
+source src/ec/lenovo/pmh7/Kconfig
Index: src/ec/lenovo/Makefile.inc
===================================================================
--- src/ec/lenovo/Makefile.inc	(revision 0)
+++ src/ec/lenovo/Makefile.inc	(revision 0)
@@ -0,0 +1 @@
+subdirs-$(CONFIG_EC_LENOVO_PMH7) += pmh7
Index: src/ec/lenovo/pmh7/Kconfig
===================================================================
--- src/ec/lenovo/pmh7/Kconfig	(revision 0)
+++ src/ec/lenovo/pmh7/Kconfig	(revision 0)
@@ -0,0 +1,2 @@
+config EC_LENOVO_PMH7
+	bool
Index: src/ec/lenovo/pmh7/pmh7.h
===================================================================
--- src/ec/lenovo/pmh7/pmh7.h	(revision 0)
+++ src/ec/lenovo/pmh7/pmh7.h	(revision 0)
@@ -0,0 +1,15 @@
+#ifndef EC_LENOVO_PMH7_H
+#define EC_LENOVO_PMH7_H
+
+#define EC_LENOVO_PMH7_INDEX 0x77
+
+#define EC_LENOVO_PMH7_BASE 0x15e0
+#define EC_LENOVO_PMH7_ADDR (EC_LENOVO_PMH7_BASE + 0x0c)
+#define EC_LENOVO_PMH7_DATA (EC_LENOVO_PMH7_BASE + 0x0e)
+
+void pmh7_register_set_bit(int reg, int bit);
+void pmh7_register_clear_bit(int reg, int bit);
+char pmh7_register_read(int reg);
+void pmh7_register_write(int reg, int val);
+
+#endif
Index: src/ec/lenovo/pmh7/Makefile.inc
===================================================================
--- src/ec/lenovo/pmh7/Makefile.inc	(revision 0)
+++ src/ec/lenovo/pmh7/Makefile.inc	(revision 0)
@@ -0,0 +1 @@
+driver-y += pmh7.c
Index: src/ec/lenovo/pmh7/pmh7.c
===================================================================
--- src/ec/lenovo/pmh7/pmh7.c	(revision 0)
+++ src/ec/lenovo/pmh7/pmh7.c	(revision 0)
@@ -0,0 +1,56 @@
+#include <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <stdlib.h>
+
+#include "pmh7.h"
+
+void pmh7_register_set_bit(int reg, int bit)
+{
+	char val;
+
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	val = inb(EC_LENOVO_PMH7_DATA);
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	outb(val | (1 << bit), EC_LENOVO_PMH7_DATA);
+}
+
+void pmh7_register_clear_bit(int reg, int bit)
+{
+	char val;
+
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	val = inb(EC_LENOVO_PMH7_DATA);
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	outb(val &= ~(1 << bit), EC_LENOVO_PMH7_DATA);
+}
+
+char pmh7_register_read(int reg)
+{
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	return inb(EC_LENOVO_PMH7_DATA);
+}
+
+void pmh7_register_write(int reg, int val)
+{
+	outb(reg, EC_LENOVO_PMH7_ADDR);
+	outb(val, EC_LENOVO_PMH7_DATA);
+}
+
+static void enable_dev(device_t dev)
+{
+	struct resource *resource;
+	resource = new_resource(dev, EC_LENOVO_PMH7_INDEX);
+	resource->flags = IORESOURCE_IO | IORESOURCE_FIXED;
+	resource->base = EC_LENOVO_PMH7_BASE;
+	resource->size = 16;
+	resource->align = 5;
+	resource->gran = 5;
+
+}
+
+struct chip_operations ec_lenovo_pmh7_ops = {
+	CHIP_NAME("Lenovo Power Management Hardware Hub 7")
+	.enable_dev = enable_dev,
+};