summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/soc/intel/baytrail/Makefile.inc1
-rw-r--r--src/soc/intel/baytrail/southcluster.c130
2 files changed, 131 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/Makefile.inc b/src/soc/intel/baytrail/Makefile.inc
index f802388724..1969a3526c 100644
--- a/src/soc/intel/baytrail/Makefile.inc
+++ b/src/soc/intel/baytrail/Makefile.inc
@@ -30,6 +30,7 @@ ramstage-y += pmutil.c
smm-y += pmutil.c
smm-y += smihandler.c
ramstage-y += smm.c
+ramstage-y += southcluster.c
# Remove as ramstage gets fleshed out
ramstage-y += placeholders.c
diff --git a/src/soc/intel/baytrail/southcluster.c b/src/soc/intel/baytrail/southcluster.c
new file mode 100644
index 0000000000..32b8799e58
--- /dev/null
+++ b/src/soc/intel/baytrail/southcluster.c
@@ -0,0 +1,130 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2013 Google Inc.
+ *
+ * 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 <stdint.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <romstage_handoff.h>
+
+#include <baytrail/iomap.h>
+#include <baytrail/lpc.h>
+#include <baytrail/nvs.h>
+#include <baytrail/pci_devs.h>
+#include <baytrail/ramstage.h>
+
+static inline void
+add_mmio_resource(device_t dev, int i, unsigned long addr, unsigned long size)
+{
+ mmio_resource(dev, i, addr >> 10, size >> 10);
+}
+
+static void sc_add_mmio_resources(device_t dev)
+{
+ add_mmio_resource(dev, PBASE, PMC_BASE_ADDRESS, 1024);
+ add_mmio_resource(dev, IOBASE, IO_BASE_ADDRESS, 16 * 1024);
+ add_mmio_resource(dev, IBASE, ILB_BASE_ADDRESS, 1024);
+ add_mmio_resource(dev, SBASE, SPI_BASE_ADDRESS, 1024);
+ add_mmio_resource(dev, MPBASE, MPHY_BASE_ADDRESS, 1024 * 1024);
+ add_mmio_resource(dev, PUBASE, PUNIT_BASE_ADDRESS, 2048);
+ add_mmio_resource(dev, RCBA, RCBA_BASE_ADDRESS, 1024);
+}
+
+/* Default IO range claimed by the LPC device. The upper bound is exclusive. */
+#define LPC_DEFAULT_IO_RANGE_LOWER 0
+#define LPC_DEFAULT_IO_RANGE_UPPER 0x1000
+
+static inline int io_range_in_default(int base, int size)
+{
+ /* Does it start above the range? */
+ if (base >= LPC_DEFAULT_IO_RANGE_UPPER)
+ return 0;
+
+ /* Is it entirely contained? */
+ if (base >= LPC_DEFAULT_IO_RANGE_LOWER &&
+ (base + size) < LPC_DEFAULT_IO_RANGE_UPPER)
+ return 1;
+
+ /* This will return not in range for partial overlaps. */
+ return 0;
+}
+
+/*
+ * Note: this function assumes there is no overlap with the default LPC device's
+ * claimed range: LPC_DEFAULT_IO_RANGE_LOWER -> LPC_DEFAULT_IO_RANGE_UPPER.
+ */
+static void sc_add_io_resource(device_t dev, int base, int size, int index)
+{
+ struct resource *res;
+
+ if (io_range_in_default(base, size))
+ return;
+
+ res = new_resource(dev, index);
+ res->base = base;
+ res->size = size;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
+static void sc_add_io_resources(device_t dev)
+{
+ struct resource *res;
+
+ /* Add the default claimed IO range for the LPC device. */
+ res = new_resource(dev, 0);
+ res->base = LPC_DEFAULT_IO_RANGE_LOWER;
+ res->size = LPC_DEFAULT_IO_RANGE_UPPER - LPC_DEFAULT_IO_RANGE_LOWER;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ /* GPIO */
+ sc_add_io_resource(dev, GPIO_BASE_ADDRESS, 256, GBASE);
+
+ /* ACPI */
+ sc_add_io_resource(dev, ACPI_BASE_ADDRESS, 128, ABASE);
+}
+
+static void sc_read_resources(device_t dev)
+{
+ /* Get the normal PCI resources of this device. */
+ pci_dev_read_resources(dev);
+
+ /* Add non-standard MMIO resources. */
+ sc_add_mmio_resources(dev);
+
+ /* Add IO resources. */
+ sc_add_io_resources(dev);
+}
+
+static struct device_operations device_ops = {
+ .read_resources = sc_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = NULL,
+ .init = NULL,
+ .enable = NULL,
+ .scan_bus = NULL,
+ .ops_pci = &soc_pci_ops,
+};
+
+static const struct pci_driver southcluster __pci_driver = {
+ .ops = &device_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = LPC_DEVID,
+};