serverworks HT1000/HT2000, bcm5785/5780 support

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2176 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 137 insertions, 0 deletions

diff --git a/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c b/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c
new file mode 100644
index 0000000000..5c061dbe86
--- /dev/null
+++ b/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright  2005 AMD
+ *  by yinghai.lu@amd.com
+ */
+
+#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 "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;
+	unsigned long index;
+
+	/* 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->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+        
+        res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
+        res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
+
+}
+
+/**     
+ * @brief Enable resources for children devices
+ *      
+ * @param dev the device whos children's resources are to be enabled
+ *      
+ * This function is call by the global enable_resources() indirectly via the
+ * device_operation::enable_resources() method of devices.
+ *      
+ * Indirect mutual recursion:
+ *      enable_childrens_resources() -> enable_resources()
+ *      enable_resources() -> device_operation::enable_resources()
+ *      device_operation::enable_resources() -> enable_children_resources()
+ */     
+static void bcm5785_lpc_enable_childrens_resources(device_t dev)
+{       
+        unsigned link; 
+	uint32_t reg;
+	int i;
+	int var_num = 0;
+	
+	reg = pci_read_config8(dev, 0x44);
+
+        for (link = 0; link < dev->links; link++) {
+                device_t child;
+                for (child = dev->link[link].children; child; child = child->sibling) {
+                        enable_resources(child);
+			if(child->have_resources && (child->path.type == DEVICE_PATH_PNP)) {
+				for(i=0;i<child->resources;i++) {
+					struct resource *res;
+			                unsigned long base, end; // don't need long long
+					res = &child->resource[i];
+					if(!(res->flags & IORESOURCE_IO)) continue;
+		        	        base = res->base;
+                			end = resource_end(res);
+					printk_debug("bcm5785lpc decode:%s, base=0x%08x, end=0x%08x\r\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 struct pci_driver lpc_driver __pci_driver = {
+	.ops    = &lpc_ops,
+	.vendor = PCI_VENDOR_ID_SERVERWORKS,
+	.device = PCI_DEVICE_ID_SERVERWORKS_BCM5785_LPC,
+};
+