- Add the new files for the motorola mpc107

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1787 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 144 insertions, 0 deletions

diff --git a/src/northbridge/motorola/mpc107/chip.h b/src/northbridge/motorola/mpc107/chip.h
new file mode 100644
index 0000000000..48f7decb40
--- /dev/null
+++ b/src/northbridge/motorola/mpc107/chip.h
@@ -0,0 +1,6 @@
+
+struct northbridge_motorola_mpc107_config {
+	/* Nothing yet */
+};
+
+extern struct chip_operations northbridge_motorola_mpc107_ops;
diff --git a/src/northbridge/motorola/mpc107/mpc107_northbridge.c b/src/northbridge/motorola/mpc107/mpc107_northbridge.c
new file mode 100644
index 0000000000..ee9a5e2aee
--- /dev/null
+++ b/src/northbridge/motorola/mpc107/mpc107_northbridge.c
@@ -0,0 +1,138 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include <cpu/cpu.h>
+#include "chip.h"
+
+static void pci_domain_read_resources(device_t dev)
+{
+	struct resource *resource;
+
+	/* Initialize the system wide io space constraints */
+	resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
+	resource->base	= 0;
+	resource->limit = 0xffffUL;
+	resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+
+	/* Initialize the system wide memory resources constraints */
+	resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
+	resource->base	= 0x80000000ULL;
+	resource->limit = 0xfeffffffULL; /* We can put pci resources in the system controll area */
+	resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+}
+
+static void pci_domain_set_resources(device_t dev)
+{
+	device_t mc_dev;
+
+	/* Get the memory controller device */
+	mc_dev = dev->link[0].children;
+	if (mc_dev) {
+		/* Figure out which areas occupied by ram. */
+		int i, idx;
+		uint32_t memstart1, memstart2, extmemstart1, extmemstart2;
+		uint32_t memend1, memend2, extmemend1, extmemend2;
+		uint8_t bank_enable;
+		unsigned long start, end, size;
+
+		/* Find the memory setup */
+		memstart1    = pci_read_config32(dev, 0x80);
+		memstart2    = pci_read_config32(dev, 0x84);
+		extmemstart1 = pci_read_config32(dev, 0x88);
+		extmemstart1 = pci_read_config32(dev, 0x8c);
+		memend1      = pci_read_config32(dev, 0x90);
+		memend2      = pci_read_config32(dev, 0x94);
+		extmemend1   = pci_read_config32(dev, 0x98);
+		extmemend2   = pci_read_config32(dev, 0x9c);
+		bank_enable  = pci_read_config32(dev, 0xa0);
+	
+		/* Report the memory regions */
+		idx = 10;
+		for(i = 0; i < 8; i++) {
+			struct resource *res;
+			/* Ignore banks that are not enabled */
+			if (!(bank_enable & (1 << i))) {
+				continue;
+			}
+			/* Find the start and end of each bank */
+			if (i < 4) {
+				int shift = (8*i);
+				start =  ((memstart1    >> shift) & 0xff) << 20;
+				start |= ((extmemstart1 >> shift) & 0xff) << 28;
+				end   =  ((memend1      >> shift) & 0xff) << 20;
+				end   |= ((extmemend1   >> shift) & 0xff) << 28;
+			} else {
+				int shift = (8*(i - 4));
+				start =  ((memstart2    >> shift) & 0xff) << 20;
+				start |= ((extmemstart2 >> shift) & 0xff) << 28;
+				end   =  ((memend2      >> shift) & 0xff) << 20;
+				end   |= ((extmemend2   >> shift) & 0xff) << 28;
+			}
+			/* Comput the size of the bank */
+			size = (end + (1 << 20)) - start;
+
+			/* And now report the memory region */
+			res = new_resource(dev, idx++);
+			res->base = start;
+			res->size = size;
+			res->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \
+				IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+		}
+	}
+	/* And assign the resources */
+	assign_resources(&dev->link[0]);
+}
+
+
+static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
+{
+	max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
+	return max;
+}
+
+static struct device_operations pci_domain_ops = {
+	.read_resources	  = pci_domain_read_resources,
+	.set_resources	  = pci_domain_set_resources,
+	.enable_resources = enable_childrens_resources,
+	.init		  = 0,
+	.scan_bus	  = pci_domain_scan_bus,
+	.ops_pci_bus	  = &pci_ppc_conf1,
+};  
+
+static void cpu_bus_init(device_t dev)
+{
+	initialize_cpus(&dev->link[0]);
+}
+
+static void cpu_bus_noop(device_t dev)
+{
+}
+
+static struct device_operations cpu_bus_ops = {
+	.read_resources	  = cpu_bus_noop,
+	.set_resources	  = cpu_bus_noop,
+	.enable_resources = cpu_bus_noop,
+	.init		  = cpu_bus_init,
+	.scan_bus	  = 0,
+};
+
+static void enable_dev(struct device *dev)
+{
+	/* Set the operations if it is a special bus type */
+	if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
+		dev->ops = &pci_domain_ops;
+	}
+	else if (dev->path.type == DEVICE_PATH_CPU_BUS) {
+		dev->ops = &cpu_bus_ops;
+	}
+}
+
+struct chip_operations northbridge_motorola_mpc107_ops = {
+	CHIP_NAME("MPC107")
+	.enable_dev = enable_dev,
+};