- Cleanups on the romcc side including a pci interface that uses

  fewer registers, and is easier to hardcode.


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@838 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 130 insertions, 0 deletions

diff --git a/src/southbridge/amd/amd8111/amd8111_lpc.c b/src/southbridge/amd/amd8111/amd8111_lpc.c
new file mode 100644
index 0000000000..d8b4ba1b77
--- /dev/null
+++ b/src/southbridge/amd/amd8111/amd8111_lpc.c
@@ -0,0 +1,130 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+
+struct ioapicreg {
+	unsigned int reg;
+	unsigned int value_low, value_high;
+};
+
+static struct ioapicreg ioapicregvalues[] = {
+#define ALL		(0xff << 24)
+#define NONE		(0)
+#define DISABLED	(1 << 16)
+#define ENABLED		(0 << 16)
+#define TRIGGER_EDGE	(0 << 15)
+#define TRIGGER_LEVEL	(1 << 15)
+#define POLARITY_HIGH	(0 << 13)
+#define POLARITY_LOW	(1 << 13)
+#define PHYSICAL_DEST	(0 << 11)
+#define LOGICAL_DEST	(1 << 11)
+#define ExtINT		(7 << 8)
+#define NMI		(4 << 8)
+#define SMI		(2 << 8)
+#define INT		(1 << 8)
+	/* mask, trigger, polarity, destination, delivery, vector */
+	{0x00, ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT | 0, 0},
+	{0x01, DISABLED, NONE},
+	{0x02, ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | INT | 0,  0},
+	{0x03, DISABLED, NONE},
+	{0x04, DISABLED, NONE},
+	{0x05, DISABLED, NONE},
+	{0x06, DISABLED, NONE},
+	{0x07, DISABLED, NONE},
+	{0x08, DISABLED, NONE},
+	{0x09, DISABLED, NONE},
+	{0x0a, DISABLED, NONE},
+	{0x0b, DISABLED, NONE},
+	{0x0c, DISABLED, NONE},
+	{0x0d, DISABLED, NONE},
+	{0x0e, DISABLED, NONE},
+	{0x0f, DISABLED, NONE},
+	{0x10, DISABLED, NONE},
+	{0x11, DISABLED, NONE},
+	{0x12, DISABLED, NONE},
+	{0x13, DISABLED, NONE},
+	{0x14, DISABLED, NONE},
+	{0x14, DISABLED, NONE},
+	{0x15, DISABLED, NONE},
+	{0x16, DISABLED, NONE},
+	{0x17, DISABLED, NONE},
+	{0x18, DISABLED, NONE},
+	{0x19, DISABLED, NONE},
+	{0x20, DISABLED, NONE},
+	{0x21, DISABLED, NONE},
+	{0x22, DISABLED, NONE},
+	{0x23, DISABLED, NONE},
+};
+
+static void setup_ioapic(void)
+{
+	int i;
+	unsigned long value_low, value_high;
+	unsigned long ioapic_base = 0xfec00000;
+	volatile unsigned long *l;
+	struct ioapicreg *a = ioapicregvalues;
+
+	l = (unsigned long *) ioapic_base;
+	for (i = 0; i < sizeof(ioapicregvalues) / sizeof(ioapicregvalues[0]);
+	     i++, a++) {
+		l[0] = (a->reg * 2) + 0x10;
+		l[4] = a->value_low;
+		value_low = l[4];
+		l[0] = (a->reg *2) + 0x11;
+		l[4] = a->value_high;
+		value_high = l[4];
+		if ((i==0) && (value_low == 0xffffffff)) {
+			printk_warning("IO APIC not responding.\n");
+			return;
+		}
+		printk_spew("for IRQ, reg 0x%08x value 0x%08x 0x%08x\n", 
+			a->reg, a->value_low, a->value_high);
+	}
+}
+
+static void lpc_init(struct device *dev)
+{
+	uint8_t byte;
+	int pwr_on=-1;
+
+	printk_debug("lpc_init\n");
+
+#if 0
+	/* IO APIC initialization */
+	pci_read_config_byte(dev, 0x4B, &byte);
+	byte |= 1;
+	pci_write_config_byte(dev, 0x4B, byte);
+	setup_ioapic();
+#endif
+
+	/* posted memory write enable */
+	pci_read_config_byte(dev, 0x46, &byte);
+	pci_write_config_byte(dev, 0x46, byte | (1<<0));
+
+	/* power after power fail */
+	pci_read_config_byte(dev, 0x43, &byte);
+	if (pwr_on) { 
+		byte &= ~(1<<6);
+	} else {
+		byte |= (1<<6);
+	}
+	pci_write_config_byte(dev, 0x43, byte);
+
+
+}
+
+static struct device_operations lpc_ops  = {
+	.read_resources = pci_dev_read_resources,
+	.set_resources  = pci_dev_set_resources,
+	.init = lpc_init,
+	.scan_bus = 0,
+};
+
+static struct pci_driver lpc_driver __pci_driver = {
+	.ops    = &lpc_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_AMD_8111_ISA,
+};