coreboot-kgpe-d16/src/mainboard/supermicro/x6dai_g/mptable.c

#include <console/console.h>
#include <arch/smp/mpspec.h>
#include <device/pci.h>
#include <string.h>
#include <stdint.h>

void *smp_write_config_table(void *v)
{
	static const char sig[4] = "PCMP";
	static const char oem[8] = "LNXI    ";
	static const char productid[12] = "X6DAI-G     ";
	struct mp_config_table *mc;
	unsigned char bus_num;
	unsigned char bus_isa;
	unsigned char bus_6300;

	mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
	memset(mc, 0, sizeof(*mc));

	memcpy(mc->mpc_signature, sig, sizeof(sig));
	mc->mpc_length = sizeof(*mc); /* initially just the header */
	mc->mpc_spec = 0x04;
	mc->mpc_checksum = 0; /* not yet computed */
	memcpy(mc->mpc_oem, oem, sizeof(oem));
	memcpy(mc->mpc_productid, productid, sizeof(productid));
	mc->mpc_oemptr = 0;
	mc->mpc_oemsize = 0;
	mc->mpc_entry_count = 0; /* No entries yet... */
	mc->mpc_lapic = LAPIC_ADDR;
	mc->mpe_length = 0;
	mc->mpe_checksum = 0;
	mc->reserved = 0;

	smp_write_processors(mc);
	
	{
		device_t dev;

		/* southbridge */
		dev = dev_find_slot(0, PCI_DEVFN(0x1e,0));
		if (dev) {
			bus_6300 = pci_read_config8(dev, PCI_SECONDARY_BUS);
			bus_isa	   = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
			bus_isa++;
		}
		else {
			printk_debug("ERROR - could not find PCI 0:1e.0, using defaults\n");
			bus_6300 = 5;
			bus_isa = 6;
		}
	}
	
	/* define bus and isa numbers */
	for(bus_num = 0; bus_num < bus_isa; bus_num++) {
		smp_write_bus(mc, bus_num, "PCI	  ");
	}
	smp_write_bus(mc, bus_isa, "ISA	  ");

	/* IOAPIC handling */

	smp_write_ioapic(mc, 2, 0x20, 0xfec00000);
	smp_write_ioapic(mc, 3, 0x20, 0xfec10000);

	/* ISA backward compatibility interrupts  */
	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x00, 0x02, 0x00);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x01, 0x02, 0x01);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x00, 0x02, 0x02);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x03, 0x02, 0x03);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x04, 0x02, 0x04);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x74, 0x02, 0x10);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x06, 0x02, 0x06);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x07, 0x02, 0x07);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x08, 0x02, 0x08);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x09, 0x02, 0x09);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x77, 0x02, 0x17);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x75, 0x02, 0x13);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x0c, 0x02, 0x0c);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x0d, 0x02, 0x0d);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x0e, 0x02, 0x0e);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x0f, 0x02, 0x0f);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x7c, 0x02, 0x12);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x7d, 0x02, 0x11);
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		0x00, 0x7d, 0x02, 0x11);
	/* Slot 1 function 0 */
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		4, 0x04, 0x03, 0x00);
	/* Slot 2 function 0 */
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		4, 0x0c, 0x03, 0x01);
	/* Slot 3 function 0 */
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		bus_6300, 0x20, 0x02, 0x14);
	/* Slot 4 function 0 */
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		bus_6300, 0x08, 0x02, 0x15);
	/* On board NIC */
	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
		bus_6300, 0x0c, 0x02, 0x16);

	/* Standard local interrupt assignments */
//	smp_write_lintsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
//		bus_isa, 0x00, MP_APIC_ALL, 0x00);
	smp_write_lintsrc(mc, mp_NMI, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,
		bus_isa, 0x00, MP_APIC_ALL, 0x01);

	/* There is no extension information... */

	/* Compute the checksums */
	mc->mpe_checksum = smp_compute_checksum(smp_next_mpc_entry(mc), mc->mpe_length);

	mc->mpc_checksum = smp_compute_checksum(mc, mc->mpc_length);
	printk_debug("Wrote the mp table end at: %p - %p\n",
		mc, smp_next_mpe_entry(mc));
	return smp_next_mpe_entry(mc);
}

unsigned long write_smp_table(unsigned long addr)
{
	void *v;
	v = smp_write_floating_table(addr);
	return (unsigned long)smp_write_config_table(v);
}