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authorstepan <stepan@coresystems.de>2010-12-08 05:42:47 +0000
committerStefan Reinauer <stepan@openbios.org>2010-12-08 05:42:47 +0000
commit836ae29ee325b1e3d28ff59468cc50913b1e24ce (patch)
treee2691a1e1ee1d795ffe7a99fb93778a9910044c2 /src/southbridge/broadcom/bcm5785/lpc.c
parent1bc5ccac51d94cfb4f9666ecf2cac619d8dc80a6 (diff)
first round name simplification. drop the <component>_ prefix.
the prefix was introduced in the early v2 tree many years ago because our old build system "newconfig" could not handle two files with the same name in different paths like /path/to/usb.c and /another/path/to/usb.c correctly. Only one of the files would end up being compiled into the final image. Since Kconfig (actually since shortly before we switched to Kconfig) we don't suffer from that problem anymore. So we could drop the sb700_ prefix from all those filenames (or, the <componentname>_ prefix in general) - makes it easier to fork off a new chipset - makes it easier to diff against other chipsets - storing redundant information in filenames seems wrong Signed-off-by: <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick@georgi-clan.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6149 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/broadcom/bcm5785/lpc.c')
-rw-r--r--src/southbridge/broadcom/bcm5785/lpc.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/src/southbridge/broadcom/bcm5785/lpc.c b/src/southbridge/broadcom/bcm5785/lpc.c
new file mode 100644
index 0000000000..adf546245f
--- /dev/null
+++ b/src/southbridge/broadcom/bcm5785/lpc.c
@@ -0,0 +1,148 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2005 AMD
+ * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
+ *
+ * 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/pci.h>
+#include <device/pnp.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <pc80/mc146818rtc.h>
+#include <pc80/isa-dma.h>
+#include <bitops.h>
+#include <arch/io.h>
+#include <arch/ioapic.h>
+#include "bcm5785.h"
+
+static void lpc_init(device_t dev)
+{
+ /* Initialize the real time clock */
+ rtc_init(0);
+
+ /* Initialize isa dma */
+ isa_dma_init();
+}
+
+static void bcm5785_lpc_read_resources(device_t dev)
+{
+ struct resource *res;
+
+ /* Get the normal pci resources of this device */
+ pci_dev_read_resources(dev);
+
+ /* Add an extra subtractive resource for both memory and I/O. */
+ res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
+ res->base = 0;
+ res->size = 0x1000;
+ res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
+ IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
+ res->base = 0xff800000;
+ res->size = 0x00800000; /* 8 MB for flash */
+ res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
+ IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ res = new_resource(dev, 3); /* IOAPIC */
+ res->base = IO_APIC_ADDR;
+ res->size = 0x00001000;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
+/**
+ * Enable resources for children devices.
+ *
+ * @param dev The device whos children's resources are to be enabled.
+ */
+static void bcm5785_lpc_enable_childrens_resources(device_t dev)
+{
+ struct bus *link;
+ uint32_t reg;
+
+ reg = pci_read_config8(dev, 0x44);
+
+ for (link = dev->link_list; link; link = link->next) {
+ device_t child;
+ for (child = link->children; child; child = child->sibling) {
+ if(child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
+ struct resource *res;
+ for(res = child->resource_list; res; res = res->next) {
+ unsigned long base, end; // don't need long long
+ if(!(res->flags & IORESOURCE_IO)) continue;
+ base = res->base;
+ end = resource_end(res);
+ printk(BIOS_DEBUG, "bcm5785lpc decode:%s, base=0x%08lx, end=0x%08lx\n",dev_path(child),base, end);
+ switch(base) {
+ case 0x60: //KBC
+ case 0x64:
+ reg |= (1<<29);
+ case 0x3f8: // COM1
+ reg |= (1<<6); break;
+ case 0x2f8: // COM2
+ reg |= (1<<7); break;
+ case 0x378: // Parallal 1
+ reg |= (1<<0); break;
+ case 0x3f0: // FD0
+ reg |= (1<<26); break;
+ case 0x220: // Aduio 0
+ reg |= (1<<14); break;
+ case 0x300: // Midi 0
+ reg |= (1<<18); break;
+ }
+ }
+ }
+ }
+ }
+ pci_write_config32(dev, 0x44, reg);
+
+
+}
+
+static void bcm5785_lpc_enable_resources(device_t dev)
+{
+ pci_dev_enable_resources(dev);
+ bcm5785_lpc_enable_childrens_resources(dev);
+}
+
+static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+ pci_write_config32(dev, 0x40,
+ ((device & 0xffff) << 16) | (vendor & 0xffff));
+}
+
+static struct pci_operations lops_pci = {
+ .set_subsystem = lpci_set_subsystem,
+};
+
+static struct device_operations lpc_ops = {
+ .read_resources = bcm5785_lpc_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = bcm5785_lpc_enable_resources,
+ .init = lpc_init,
+ .scan_bus = scan_static_bus,
+// .enable = bcm5785_enable,
+ .ops_pci = &lops_pci,
+};
+
+static const struct pci_driver lpc_driver __pci_driver = {
+ .ops = &lpc_ops,
+ .vendor = PCI_VENDOR_ID_SERVERWORKS,
+ .device = PCI_DEVICE_ID_SERVERWORKS_BCM5785_LPC,
+};