lenovo/x2[23]0: Handle Ricoh SD cardreader

Change-Id: Id0aecbd3e45bdf9661168ebd0e55f17dc6febaaa
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7203
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)

6 files changed, 114 insertions, 0 deletions

diff --git a/src/drivers/Kconfig b/src/drivers/Kconfig
index 42d1583baf..12f9a7941a 100644
--- a/src/drivers/Kconfig
+++ b/src/drivers/Kconfig
@@ -39,3 +39,4 @@ source src/drivers/trident/Kconfig
 source src/drivers/uart/Kconfig
 source src/drivers/usb/Kconfig
 source src/drivers/xpowers/Kconfig
+source src/drivers/ricoh/rce822/Kconfig
diff --git a/src/drivers/Makefile.inc b/src/drivers/Makefile.inc
index cb2664396e..7ae3eb2510 100644
--- a/src/drivers/Makefile.inc
+++ b/src/drivers/Makefile.inc
@@ -38,3 +38,4 @@ subdirs-y += ipmi
 subdirs-y += elog
 subdirs-y += xpowers
 subdirs-$(CONFIG_ARCH_X86) += pc80
+subdirs-y += ricoh/rce822
diff --git a/src/drivers/ricoh/rce822/Kconfig b/src/drivers/ricoh/rce822/Kconfig
new file mode 100644
index 0000000000..6b0c790590
--- /dev/null
+++ b/src/drivers/ricoh/rce822/Kconfig
@@ -0,0 +1,3 @@
+config DRIVERS_RICOH_RCE822
+       bool
+       default n
diff --git a/src/drivers/ricoh/rce822/Makefile.inc b/src/drivers/ricoh/rce822/Makefile.inc
new file mode 100644
index 0000000000..738bd0e29f
--- /dev/null
+++ b/src/drivers/ricoh/rce822/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_DRIVERS_RICOH_RCE822) += rce822.c
diff --git a/src/drivers/ricoh/rce822/chip.h b/src/drivers/ricoh/rce822/chip.h
new file mode 100644
index 0000000000..cfed32eb95
--- /dev/null
+++ b/src/drivers/ricoh/rce822/chip.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Vladimir Serbinenko
+ *
+ * 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 DRIVERS_RICOH_RC822_CHIP_H
+#define DRIVERS_RICOH_RC822_CHIP_H
+
+struct drivers_ricoh_rce822_config {
+	u8 sdwppol:1;
+	u8 disable_mask;
+};
+
+#endif
diff --git a/src/drivers/ricoh/rce822/rce822.c b/src/drivers/ricoh/rce822/rce822.c
new file mode 100644
index 0000000000..2383f4b026
--- /dev/null
+++ b/src/drivers/ricoh/rce822/rce822.c
@@ -0,0 +1,79 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Vladimir Serbinenko
+ *
+ * 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 <kconfig.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include "chip.h"
+
+static void rce822_enable(struct device *dev)
+{
+	struct drivers_ricoh_rce822_config *config = dev->chip_info;
+
+	pci_write_config8(dev, 0xca, 0x57);
+	pci_write_config8(dev, 0xcb, config->disable_mask);
+	pci_write_config8(dev, 0xca, 0x00);
+}
+
+static void rce822_init(struct device *dev)
+{
+	struct drivers_ricoh_rce822_config *config = dev->chip_info;
+
+	pci_write_config8(dev, 0xf9, 0xfc);
+	pci_write_config8(dev, 0xfb, config->sdwppol << 1);
+	pci_write_config8(dev, 0xf9, 0x00);
+}
+
+static void rce822_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+
+	if (!vendor || !device) {
+		pci_write_config32(dev, 0xac,
+				pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, 0xac,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem	= &rce822_set_subsystem,
+};
+
+static struct device_operations usb_ehci_ops = {
+	.read_resources		= pci_dev_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= pci_dev_enable_resources,
+	.init			= rce822_init,
+	.enable			= rce822_enable,
+	.scan_bus		= 0,
+	.ops_pci		= &lops_pci,
+};
+
+static const unsigned short pci_device_ids[] = { 0xe822, 0xe823, 0 };
+
+static const struct pci_driver pch_usb_ehci __pci_driver = {
+	.ops	 = &usb_ehci_ops,
+	.vendor	 = PCI_VENDOR_ID_RICOH,
+	.devices = pci_device_ids,
+};