X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=lib%2Ffdtdec.c;h=9714620ab3e211df006d440dc4f1abb6d03bb9b8;hp=eb5aa20526fd509618311fdb3b4aab3c6379d46d;hb=0ce4af99c07acebf4fce9a91f1099d2460629293;hpb=dcdb61a084bd3840d0987a5d01ae506c11efca1b

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index eb5aa20526..9714620ab3 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -70,6 +70,9 @@ static const char * const compat_names[COMPAT_COUNT] = {
 	COMPAT(SANDBOX_LCD_SDL, "sandbox,lcd-sdl"),
 	COMPAT(TI_TPS65090, "ti,tps65090"),
 	COMPAT(COMPAT_NXP_PTN3460, "nxp,ptn3460"),
+	COMPAT(SAMSUNG_EXYNOS_SYSMMU, "samsung,sysmmu-v3.3"),
+	COMPAT(PARADE_PS8625, "parade,ps8625"),
+	COMPAT(COMPAT_INTEL_LPC, "intel,lpc"),
 };
 
 const char *fdtdec_get_compatible(enum fdt_compat_id id)
@@ -380,6 +383,21 @@ int fdtdec_get_alias_node(const void *blob, const char *name)
 	return fdt_path_offset(blob, prop);
 }
 
+int fdtdec_get_chosen_node(const void *blob, const char *name)
+{
+	const char *prop;
+	int chosen_node;
+	int len;
+
+	if (!blob)
+		return -FDT_ERR_NOTFOUND;
+	chosen_node = fdt_path_offset(blob, "/chosen");
+	prop = fdt_getprop(blob, chosen_node, name, &len);
+	if (!prop)
+		return -FDT_ERR_NOTFOUND;
+	return fdt_path_offset(blob, prop);
+}
+
 int fdtdec_check_fdt(void)
 {
 	/*
@@ -691,4 +709,75 @@ int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
 
 	return 0;
 }
+
+static u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
+{
+	u64 number = 0;
+
+	while (cells--)
+		number = (number << 32) | fdt32_to_cpu(*ptr++);
+
+	return number;
+}
+
+int fdt_get_resource(const void *fdt, int node, const char *property,
+		     unsigned int index, struct fdt_resource *res)
+{
+	const fdt32_t *ptr, *end;
+	int na, ns, len, parent;
+	unsigned int i = 0;
+
+	parent = fdt_parent_offset(fdt, node);
+	if (parent < 0)
+		return parent;
+
+	na = fdt_address_cells(fdt, parent);
+	ns = fdt_size_cells(fdt, parent);
+
+	ptr = fdt_getprop(fdt, node, property, &len);
+	if (!ptr)
+		return len;
+
+	end = ptr + len / sizeof(*ptr);
+
+	while (ptr + na + ns <= end) {
+		if (i == index) {
+			res->start = res->end = fdtdec_get_number(ptr, na);
+			res->end += fdtdec_get_number(&ptr[na], ns) - 1;
+			return 0;
+		}
+
+		ptr += na + ns;
+		i++;
+	}
+
+	return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_named_resource(const void *fdt, int node, const char *property,
+			   const char *prop_names, const char *name,
+			   struct fdt_resource *res)
+{
+	int index;
+
+	index = fdt_find_string(fdt, node, prop_names, name);
+	if (index < 0)
+		return index;
+
+	return fdt_get_resource(fdt, node, property, index, res);
+}
+
+int fdtdec_pci_get_bdf(const void *fdt, int node, int *bdf)
+{
+	const fdt32_t *prop;
+	int len;
+
+	prop = fdt_getprop(fdt, node, "reg", &len);
+	if (!prop)
+		return len;
+
+	*bdf = fdt32_to_cpu(*prop) & 0xffffff;
+
+	return 0;
+}
 #endif