From d9b1c4f42f8e2fc4c3e44fa23f815c68e5127385 Mon Sep 17 00:00:00 2001 From: Mondrian nuessle Date: Wed, 22 Apr 2009 20:27:53 +0000 Subject: This patch adds support for the BCM21000 (aka HT-2100) PCIe bridge. Signed-off-by: Mondrian nuessle Acked-by: Samuel Verstraete git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4182 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/broadcom/bcm21000/Config.lb | 1 + src/southbridge/broadcom/bcm21000/bcm21000_pcie.c | 82 +++++++++++++++++++++++ 2 files changed, 83 insertions(+) create mode 100644 src/southbridge/broadcom/bcm21000/Config.lb create mode 100644 src/southbridge/broadcom/bcm21000/bcm21000_pcie.c (limited to 'src/southbridge/broadcom') diff --git a/src/southbridge/broadcom/bcm21000/Config.lb b/src/southbridge/broadcom/bcm21000/Config.lb new file mode 100644 index 0000000000..b411d1fc67 --- /dev/null +++ b/src/southbridge/broadcom/bcm21000/Config.lb @@ -0,0 +1 @@ +driver bcm21000_pcie.o diff --git a/src/southbridge/broadcom/bcm21000/bcm21000_pcie.c b/src/southbridge/broadcom/bcm21000/bcm21000_pcie.c new file mode 100644 index 0000000000..749e4ee49d --- /dev/null +++ b/src/southbridge/broadcom/bcm21000/bcm21000_pcie.c @@ -0,0 +1,82 @@ +/* + * This file is part of the coreboot project. + * +* Copyright (C) 2009 University of Heidelberg + * Written by Mondrian Nuessle for University of Heidelberg + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#include +#include +#include +#include +#include + +static void pcie_init(struct device *dev) +{ + + /* Enable pci error detecting */ + uint32_t dword; + uint32_t msicap; + + printk_debug("PCIE enable.... dev= %s\n",dev_path(dev)); + + /* System error enable */ + dword = pci_read_config32(dev, 0x04); + dword |= (1<<8); /* System error enable */ + dword |= (1<<30); /* Clear possible errors */ + pci_write_config32(dev, 0x04, dword); + + /* enable MSI on PCIE: */ + msicap = pci_read_config32(dev, 0xa0); + msicap |= (1<<16); /* enable MSI*/ + pci_write_config32(dev, 0xa0, msicap); +} + +static struct pci_operations lops_pci = { + .set_subsystem = 0, +}; + +static struct device_operations pcie_ops = { + .read_resources = pci_bus_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_bus_enable_resources, + .init = pcie_init, + .scan_bus = pci_scan_bridge, + .reset_bus = pci_bus_reset, + .ops_pci = &lops_pci, +}; + + +static struct pci_driver pcie_driver1 __pci_driver = { + .ops = &pcie_ops, + .vendor = PCI_VENDOR_ID_SERVERWORKS, + .device = PCI_DEVICE_ID_SERVERWORKS_BCM21000_EXB0, +}; + +static struct pci_driver pcie_driver2 __pci_driver = { + .ops = &pcie_ops, + .vendor = PCI_VENDOR_ID_SERVERWORKS, + .device = PCI_DEVICE_ID_SERVERWORKS_BCM21000_EXB1, +}; + +static struct pci_driver pcie_driver3 __pci_driver = { + .ops = &pcie_ops, + .vendor = PCI_VENDOR_ID_SERVERWORKS, + .device = PCI_DEVICE_ID_SERVERWORKS_BCM21000_EXB2, +}; + -- cgit v1.2.3