From 795f96e2b947a950e4c56e34d1706308f8b2cec6 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Mon, 27 Oct 2014 02:45:22 +0100 Subject: lenovo/x2[23]0: Handle Ricoh SD cardreader Change-Id: Id0aecbd3e45bdf9661168ebd0e55f17dc6febaaa Signed-off-by: Vladimir Serbinenko Reviewed-on: http://review.coreboot.org/7203 Reviewed-by: Edward O'Callaghan Tested-by: build bot (Jenkins) --- src/drivers/ricoh/rce822/rce822.c | 79 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 src/drivers/ricoh/rce822/rce822.c (limited to 'src/drivers/ricoh/rce822/rce822.c') 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 +#include +#include +#include +#include +#include +#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, +}; -- cgit v1.2.3