C++ (Cpp) fdtdec_get_addr_size_auto_parent Examples

Example #1

File: spmi-msm.c Project: RobertCNelson/u-boot-boards

static int msm_spmi_probe(struct udevice *dev)
{
	struct udevice *parent = dev->parent;
	struct msm_spmi_priv *priv = dev_get_priv(dev);
	int node = dev_of_offset(dev);
	int i;

	priv->arb_chnl = devfdt_get_addr(dev);
	priv->spmi_core = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
			dev_of_offset(parent), node, "reg", 1, NULL, false);
	priv->spmi_obs = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
			dev_of_offset(parent), node, "reg", 2, NULL, false);
	if (priv->arb_chnl == FDT_ADDR_T_NONE ||
	    priv->spmi_core == FDT_ADDR_T_NONE ||
	    priv->spmi_obs == FDT_ADDR_T_NONE)
		return -EINVAL;

	/* Scan peripherals connected to each SPMI channel */
	for (i = 0; i < SPMI_MAX_CHANNELS ; i++) {
		uint32_t periph = readl(priv->arb_chnl + ARB_CHANNEL_OFFSET(i));
		uint8_t slave_id = (periph & 0xf0000) >> 16;
		uint8_t pid = (periph & 0xff00) >> 8;

		priv->channel_map[slave_id][pid] = i;
	}
	return 0;
}

Example #2

File: simplefb.c Project: Noltari/u-boot

static int simple_video_probe(struct udevice *dev)
{
	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
	struct video_priv *uc_priv = dev_get_uclass_priv(dev);
	const void *blob = gd->fdt_blob;
	const int node = dev_of_offset(dev);
	const char *format;
	fdt_addr_t base;
	fdt_size_t size;

	base = fdtdec_get_addr_size_auto_parent(blob, dev_of_offset(dev->parent),
			node, "reg", 0, &size, false);
	if (base == FDT_ADDR_T_NONE) {
		debug("%s: Failed to decode memory region\n", __func__);
		return -EINVAL;
	}

	debug("%s: base=%llx, size=%llu\n", __func__, base, size);

	/*
	 * TODO is there some way to reserve the framebuffer
	 * region so it isn't clobbered?
	 */
	plat->base = base;
	plat->size = size;

	video_set_flush_dcache(dev, true);

	debug("%s: Query resolution...\n", __func__);

	uc_priv->xsize = fdtdec_get_uint(blob, node, "width", 0);
	uc_priv->ysize = fdtdec_get_uint(blob, node, "height", 0);
	uc_priv->rot = 0;

	format = fdt_getprop(blob, node, "format", NULL);
	debug("%s: %dx%d@%s\n", __func__, uc_priv->xsize, uc_priv->ysize, format);

	if (strcmp(format, "r5g6b5") == 0) {
		uc_priv->bpix = VIDEO_BPP16;
	} else if (strcmp(format, "a8b8g8r8") == 0) {
		uc_priv->bpix = VIDEO_BPP32;
	} else {
		printf("%s: invalid format: %s\n", __func__, format);
		return -EINVAL;
	}

	return 0;
}

Example #3

File: fdtdec.c Project: eliasbakken/u-boot

fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
		const char *prop_name, int index, fdt_size_t *sizep)
{
	int parent;

	debug("%s: ", __func__);

	parent = fdt_parent_offset(blob, node);
	if (parent < 0) {
		debug("(no parent found)\n");
		return FDT_ADDR_T_NONE;
	}

	return fdtdec_get_addr_size_auto_parent(blob, parent, node, prop_name,
						index, sizep);
}