C++ (Cpp) dt_prop_get_u32の例

コード例 #1

ファイル: sbe-p8.c プロジェクト: open-power/skiboot

void p8_sbe_init_timer(void)
{
	struct dt_node *np;
	int64_t rc;
	uint32_t tick_us;

	np = dt_find_compatible_node(dt_root, NULL, "ibm,power8-sbe-timer");
	if (!np)
		return;

	sbe_timer_chip = dt_get_chip_id(np);
	tick_us = dt_prop_get_u32(np, "tick-time-us");
	sbe_timer_inc = usecs_to_tb(tick_us);
	sbe_timer_target = ~0ull;

	rc = xscom_read(sbe_timer_chip, 0xE0006, &sbe_last_gen);
	if (rc) {
		prerror("SLW: Error %lld reading tmr gen count\n", rc);
		return;
	}
	sbe_last_gen_stamp = mftb();

	prlog(PR_INFO, "SLW: Timer facility on chip %d, resolution %dus\n",
	      sbe_timer_chip, tick_us);
	sbe_has_timer = true;
}

コード例 #2

ファイル: cfam.c プロジェクト: shenki/pdbg

static int cfam_hmfsi_probe(struct pdbg_target *target)
{
	struct fsi *fsi = target_to_fsi(target);
	struct pdbg_target *fsi_parent = target->parent;
	uint32_t value, port;
	int rc;

	/* Enable the port in the upstream control register */
	port = dt_prop_get_u32(target, "port");
	fsi_read(fsi_parent, 0x3404, &value);
	value |= 1 << (31 - port);
	if ((rc = fsi_write(fsi_parent, 0x3404, value))) {
		PR_ERROR("Unable to enable HMFSI port %d\n", port);
		return rc;
	}

	if ((rc = fsi_read(&fsi->target, 0xc09, &value)))
		return rc;

	fsi->chip_type = get_chip_type(value);

	PR_DEBUG("Found chip type %x\n", fsi->chip_type);
	if (fsi->chip_type == CHIP_UNKNOWN)
		return -1;

	return 0;
}