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authorSven Schnelle <svens@stackframe.org>2011-10-23 15:53:47 +0200
committerSven Schnelle <svens@stackframe.org>2011-10-25 19:22:22 +0200
commitf488165a3de4da61626b27d8a1c250a0d303eee0 (patch)
treecdd233c721a6a823c63946c6061537a48963eb6e /src/drivers/ics/954309
parent906f9ae784b8a593319c400cbcc5e555a29b4128 (diff)
downloadcoreboot-f488165a3de4da61626b27d8a1c250a0d303eee0.tar.xz
Add driver for ICS954309 clock generator
Change-Id: Iac7e91cdd995dad1954eaa2d4dd52bffa293fc95 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/327 Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/drivers/ics/954309')
-rw-r--r--src/drivers/ics/954309/Kconfig2
-rw-r--r--src/drivers/ics/954309/Makefile.inc1
-rw-r--r--src/drivers/ics/954309/chip.h37
-rw-r--r--src/drivers/ics/954309/ics954309.c77
4 files changed, 117 insertions, 0 deletions
diff --git a/src/drivers/ics/954309/Kconfig b/src/drivers/ics/954309/Kconfig
new file mode 100644
index 0000000000..43840a3b37
--- /dev/null
+++ b/src/drivers/ics/954309/Kconfig
@@ -0,0 +1,2 @@
+config DRIVERS_ICS_954309
+ bool
diff --git a/src/drivers/ics/954309/Makefile.inc b/src/drivers/ics/954309/Makefile.inc
new file mode 100644
index 0000000000..ede9639857
--- /dev/null
+++ b/src/drivers/ics/954309/Makefile.inc
@@ -0,0 +1 @@
+driver-$(CONFIG_DRIVERS_ICS_954309) += ics954309.c
diff --git a/src/drivers/ics/954309/chip.h b/src/drivers/ics/954309/chip.h
new file mode 100644
index 0000000000..8dfc3e06dd
--- /dev/null
+++ b/src/drivers/ics/954309/chip.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
+ *
+ * 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
+ */
+
+extern struct chip_operations drivers_ics_954309_ops;
+
+struct drivers_ics_954309_config {
+ u8 reg0;
+ u8 reg1;
+ u8 reg2;
+ u8 reg3;
+ u8 reg4;
+ u8 reg5;
+ u8 reg6;
+ u8 reg7;
+ u8 reg8;
+ u8 reg9;
+ u8 reg10;
+ u8 reg11;
+};
diff --git a/src/drivers/ics/954309/ics954309.c b/src/drivers/ics/954309/ics954309.c
new file mode 100644
index 0000000000..ef62879e46
--- /dev/null
+++ b/src/drivers/ics/954309/ics954309.c
@@ -0,0 +1,77 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/smbus.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <cpu/x86/msr.h>
+#include "chip.h"
+#include <string.h>
+
+static void ics954309_init(device_t dev)
+{
+ struct drivers_ics_954309_config *config;
+ u8 initdata[12];
+
+ if (!dev->enabled || dev->path.type != DEVICE_PATH_I2C)
+ return;
+
+ config = dev->chip_info;
+
+ initdata[0] = config->reg0;
+ initdata[1] = config->reg1;
+ initdata[2] = config->reg2;
+ initdata[3] = config->reg3;
+ initdata[4] = config->reg4;
+ initdata[5] = config->reg5;
+ initdata[6] = config->reg6;
+ initdata[7] = config->reg7;
+ initdata[8] = config->reg8;
+ initdata[9] = config->reg9;
+ initdata[10] = config->reg10;
+ initdata[11] = config->reg11;
+
+ smbus_block_write(dev, 0, 12, initdata);
+}
+
+static void ics954309_noop(device_t dummy)
+{
+}
+
+static struct device_operations ics954309_operations = {
+ .read_resources = ics954309_noop,
+ .set_resources = ics954309_noop,
+ .enable_resources = ics954309_noop,
+ .init = ics954309_init,
+};
+
+static void enable_dev(struct device *dev)
+{
+ dev->ops = &ics954309_operations;
+}
+
+struct chip_operations drivers_ics_954309_ops = {
+ CHIP_NAME("ICS 954309 Clock generator")
+ .enable_dev = enable_dev,
+};