Beispiel #1
0
void main(unsigned long bist)
{
	if (bist == 0) {
#if 0
		enable_lapic();
		init_timer();
#endif
	}

        w83627thg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
        console_init();

	/* Halt if there was a built in self test failure */
	report_bist_failure(bist);

#if 0
	print_pci_devices();
#endif

	if (!bios_reset_detected()) {
        	enable_smbus();
#if 1
		dump_spd_registers();
		dump_smbus_registers();
#endif
		sdram_set_registers();
		sdram_set_spd_registers();
		sdram_enable();
	}
}
Beispiel #2
0
void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
{
	static const uint16_t spd_addr [] = {
		DIMM0, 0, 0, 0,
		DIMM1, 0, 0, 0,
	};

	int needs_reset;
	unsigned bsp_apicid = 0, nodes;
	struct mem_controller ctrl[8];

	if (!cpu_init_detectedx && boot_cpu()) {
		/* Nothing special needs to be done to find bus 0 */
		/* Allow the HT devices to be found */
		enumerate_ht_chain();
		sio_setup();
	}

	if (bist == 0)
		bsp_apicid = init_cpus(cpu_init_detectedx);

//	post_code(0x32);

	w83627thg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
	console_init();

	/* Halt if there was a built in self test failure */
	report_bist_failure(bist);

#if 0
	dump_pci_device(PCI_DEV(0, 0x18, 0));
#endif

	needs_reset = setup_coherent_ht_domain();

	wait_all_core0_started();
	// It is said that we should start core1 after all core0 launched
	start_other_cores();
	wait_all_other_cores_started(bsp_apicid);

#if CONFIG_SET_FIDVID
	/* Check to see if processor is capable of changing FIDVID  */
	/* otherwise it will throw a GP# when reading FIDVID_STATUS */
	if ((cpuid_edx(0x80000007) & 0x6) == 0x6) {
		msr_t msr;
		/* Read FIDVID_STATUS */
		msr = rdmsr(0xc0010042);
		printk(BIOS_DEBUG, "begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);

		enable_fid_change();
		init_fidvid_bsp(bsp_apicid);

		msr = rdmsr(0xc0010042);
		printk(BIOS_DEBUG, "end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
	}
#endif

	needs_reset |= ht_setup_chains_x();
	needs_reset |= ck804_early_setup_x();
	if (needs_reset) {
		printk(BIOS_INFO, "ht reset -\n");
		soft_reset();
	}

	allow_all_aps_stop(bsp_apicid);

	nodes = get_nodes();
	//It's the time to set ctrl now;
	fill_mem_ctrl(nodes, ctrl, spd_addr);

	enable_smbus();
#if 0
	dump_spd_registers(&cpu[0]);
	dump_smbus_registers();
#endif

	memreset_setup();
	sdram_initialize(nodes, ctrl);

#if 0
	print_pci_devices();
	dump_pci_devices();
#endif

	post_cache_as_ram();
}