+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <fdt_support.h>
-#include <libfdt.h>
+#include <malloc.h>
+#include <linux/libfdt.h>
#include <dm/of_access.h>
#include <dm/of_addr.h>
#include <dm/ofnode.h>
return 0;
}
-int ofnode_read_u32_default(ofnode node, const char *propname, u32 def)
+u32 ofnode_read_u32_default(ofnode node, const char *propname, u32 def)
{
assert(ofnode_valid(node));
ofnode_read_u32(node, propname, &def);
return def;
}
+int ofnode_read_u32_index(ofnode node, const char *propname, int index,
+ u32 *outp)
+{
+ const fdt32_t *cell;
+ int len;
+
+ assert(ofnode_valid(node));
+ debug("%s: %s: ", __func__, propname);
+
+ if (ofnode_is_np(node))
+ return of_read_u32_index(ofnode_to_np(node), propname, index,
+ outp);
+
+ cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
+ &len);
+ if (!cell) {
+ debug("(not found)\n");
+ return -EINVAL;
+ }
+
+ if (len < (sizeof(int) * (index + 1))) {
+ debug("(not large enough)\n");
+ return -EOVERFLOW;
+ }
+
+ *outp = fdt32_to_cpu(cell[index]);
+ debug("%#x (%d)\n", *outp, *outp);
+
+ return 0;
+}
+
+u32 ofnode_read_u32_index_default(ofnode node, const char *propname, int index,
+ u32 def)
+{
+ assert(ofnode_valid(node));
+ ofnode_read_u32_index(node, propname, index, &def);
+
+ return def;
+}
+
int ofnode_read_s32_default(ofnode node, const char *propname, s32 def)
{
assert(ofnode_valid(node));
return def;
}
+int ofnode_read_u64(ofnode node, const char *propname, u64 *outp)
+{
+ const unaligned_fdt64_t *cell;
+ int len;
+
+ assert(ofnode_valid(node));
+ debug("%s: %s: ", __func__, propname);
+
+ if (ofnode_is_np(node))
+ return of_read_u64(ofnode_to_np(node), propname, outp);
+
+ cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
+ &len);
+ if (!cell || len < sizeof(*cell)) {
+ debug("(not found)\n");
+ return -EINVAL;
+ }
+ *outp = fdt64_to_cpu(cell[0]);
+ debug("%#llx (%lld)\n", (unsigned long long)*outp,
+ (unsigned long long)*outp);
+
+ return 0;
+}
+
+u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
+{
+ assert(ofnode_valid(node));
+ ofnode_read_u64(node, propname, &def);
+
+ return def;
+}
+
bool ofnode_read_bool(ofnode node, const char *propname)
{
const void *prop;
return prop ? true : false;
}
-const char *ofnode_read_string(ofnode node, const char *propname)
+const void *ofnode_read_prop(ofnode node, const char *propname, int *sizep)
{
- const char *str = NULL;
- int len = -1;
+ const char *val = NULL;
+ int len;
assert(ofnode_valid(node));
debug("%s: %s: ", __func__, propname);
if (ofnode_is_np(node)) {
struct property *prop = of_find_property(
- ofnode_to_np(node), propname, NULL);
+ ofnode_to_np(node), propname, &len);
if (prop) {
- str = prop->value;
+ val = prop->value;
len = prop->length;
}
} else {
- str = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node),
+ val = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node),
propname, &len);
}
- if (!str) {
+ if (!val) {
debug("<not found>\n");
+ if (sizep)
+ *sizep = -FDT_ERR_NOTFOUND;
return NULL;
}
+ if (sizep)
+ *sizep = len;
+
+ return val;
+}
+
+const char *ofnode_read_string(ofnode node, const char *propname)
+{
+ const char *str;
+ int len;
+
+ str = ofnode_read_prop(node, propname, &len);
+ if (!str)
+ return NULL;
+
if (strnlen(str, len) >= len) {
debug("<invalid>\n");
return NULL;
return str;
}
+int ofnode_read_size(ofnode node, const char *propname)
+{
+ int len;
+
+ if (!ofnode_read_prop(node, propname, &len))
+ return -EINVAL;
+
+ return len;
+}
+
ofnode ofnode_find_subnode(ofnode node, const char *subnode_name)
{
ofnode subnode;
const char *ofnode_get_name(ofnode node)
{
- assert(ofnode_valid(node));
+ if (!ofnode_valid(node)) {
+ debug("%s node not valid\n", __func__);
+ return NULL;
+ }
+
if (ofnode_is_np(node))
return strrchr(node.np->full_name, '/') + 1;
return node;
}
-int ofnode_read_size(ofnode node, const char *propname)
+fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size)
{
- int len;
+ int na, ns;
- if (ofnode_is_np(node)) {
- struct property *prop = of_find_property(
- ofnode_to_np(node), propname, NULL);
-
- if (prop)
- return prop->length;
- } else {
- if (fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
- &len))
- return len;
- }
-
- return -EINVAL;
-}
-
-fdt_addr_t ofnode_get_addr_index(ofnode node, int index)
-{
if (ofnode_is_np(node)) {
const __be32 *prop_val;
+ u64 size64;
uint flags;
- u64 size;
- int na;
- prop_val = of_get_address(ofnode_to_np(node), index, &size,
+ prop_val = of_get_address(ofnode_to_np(node), index, &size64,
&flags);
if (!prop_val)
return FDT_ADDR_T_NONE;
+ if (size)
+ *size = size64;
+
+ ns = of_n_size_cells(ofnode_to_np(node));
- if (IS_ENABLED(CONFIG_OF_TRANSLATE)) {
+ if (IS_ENABLED(CONFIG_OF_TRANSLATE) && ns > 0) {
return of_translate_address(ofnode_to_np(node), prop_val);
} else {
na = of_n_addr_cells(ofnode_to_np(node));
return of_read_number(prop_val, na);
}
} else {
- return fdt_get_base_address(gd->fdt_blob,
- ofnode_to_offset(node));
+ na = ofnode_read_simple_addr_cells(ofnode_get_parent(node));
+ ns = ofnode_read_simple_size_cells(ofnode_get_parent(node));
+ return fdtdec_get_addr_size_fixed(gd->fdt_blob,
+ ofnode_to_offset(node), "reg",
+ index, na, ns, size, true);
}
return FDT_ADDR_T_NONE;
}
+fdt_addr_t ofnode_get_addr_index(ofnode node, int index)
+{
+ fdt_size_t size;
+
+ return ofnode_get_addr_size_index(node, index, &size);
+}
+
fdt_addr_t ofnode_get_addr(ofnode node)
{
return ofnode_get_addr_index(node, 0);
return offset_to_ofnode(fdt_path_offset(gd->fdt_blob, path));
}
-const char *ofnode_get_chosen_prop(const char *name)
+const void *ofnode_read_chosen_prop(const char *propname, int *sizep)
{
ofnode chosen_node;
chosen_node = ofnode_path("/chosen");
- return ofnode_read_string(chosen_node, name);
+ return ofnode_read_prop(chosen_node, propname, sizep);
+}
+
+const char *ofnode_read_chosen_string(const char *propname)
+{
+ return ofnode_read_chosen_prop(propname, NULL);
}
ofnode ofnode_get_chosen_node(const char *name)
{
const char *prop;
- prop = ofnode_get_chosen_prop(name);
+ prop = ofnode_read_chosen_prop(name, NULL);
if (!prop)
return ofnode_null();
if (!prop)
return FDT_ADDR_T_NONE;
na = of_n_addr_cells(np);
- ns = of_n_addr_cells(np);
+ ns = of_n_size_cells(np);
*sizep = of_read_number(prop + na, ns);
- return of_read_number(prop, na);
+
+ if (CONFIG_IS_ENABLED(OF_TRANSLATE) && ns > 0)
+ return of_translate_address(np, prop);
+ else
+ return of_read_number(prop, na);
} else {
return fdtdec_get_addr_size(gd->fdt_blob,
ofnode_to_offset(node), property,
if ((fdt32_to_cpu(*cell) & type) == type) {
addr->phys_hi = fdt32_to_cpu(cell[0]);
addr->phys_mid = fdt32_to_cpu(cell[1]);
- addr->phys_lo = fdt32_to_cpu(cell[1]);
+ addr->phys_lo = fdt32_to_cpu(cell[2]);
break;
}
return ret;
}
+int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device)
+{
+ const char *list, *end;
+ int len;
+
+ list = ofnode_get_property(node, "compatible", &len);
+ if (!list)
+ return -ENOENT;
+
+ end = list + len;
+ while (list < end) {
+ len = strlen(list);
+ if (len >= strlen("pciVVVV,DDDD")) {
+ char *s = strstr(list, "pci");
+
+ /*
+ * check if the string is something like pciVVVV,DDDD.RR
+ * or just pciVVVV,DDDD
+ */
+ if (s && s[7] == ',' &&
+ (s[12] == '.' || s[12] == 0)) {
+ s += 3;
+ *vendor = simple_strtol(s, NULL, 16);
+
+ s += 5;
+ *device = simple_strtol(s, NULL, 16);
+
+ return 0;
+ }
+ }
+ list += (len + 1);
+ }
+
+ return -ENOENT;
+}
+
int ofnode_read_addr_cells(ofnode node)
{
if (ofnode_is_np(node))
bool ofnode_pre_reloc(ofnode node)
{
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_TPL_BUILD)
+ /* for SPL and TPL the remaining nodes after the fdtgrep 1st pass
+ * had property dm-pre-reloc or u-boot,dm-spl/tpl.
+ * They are removed in final dtb (fdtgrep 2nd pass)
+ */
+ return true;
+#else
if (ofnode_read_bool(node, "u-boot,dm-pre-reloc"))
return true;
-
-#ifdef CONFIG_TPL_BUILD
- if (ofnode_read_bool(node, "u-boot,dm-tpl"))
+ if (ofnode_read_bool(node, "u-boot,dm-pre-proper"))
return true;
-#elif defined(CONFIG_SPL_BUILD)
- if (ofnode_read_bool(node, "u-boot,dm-spl"))
- return true;
-#else
+
/*
* In regular builds individual spl and tpl handling both
* count as handled pre-relocation for later second init.
if (ofnode_read_bool(node, "u-boot,dm-spl") ||
ofnode_read_bool(node, "u-boot,dm-tpl"))
return true;
-#endif
return false;
+#endif
}
int ofnode_read_resource(ofnode node, uint index, struct resource *res)
else
return fdt_translate_address(gd->fdt_blob, ofnode_to_offset(node), in_addr);
}
+
+u64 ofnode_translate_dma_address(ofnode node, const fdt32_t *in_addr)
+{
+ if (ofnode_is_np(node))
+ return of_translate_dma_address(ofnode_to_np(node), in_addr);
+ else
+ return fdt_translate_dma_address(gd->fdt_blob, ofnode_to_offset(node), in_addr);
+}
+
+int ofnode_device_is_compatible(ofnode node, const char *compat)
+{
+ if (ofnode_is_np(node))
+ return of_device_is_compatible(ofnode_to_np(node), compat,
+ NULL, NULL);
+ else
+ return !fdt_node_check_compatible(gd->fdt_blob,
+ ofnode_to_offset(node),
+ compat);
+}
+
+ofnode ofnode_by_compatible(ofnode from, const char *compat)
+{
+ if (of_live_active()) {
+ return np_to_ofnode(of_find_compatible_node(
+ (struct device_node *)ofnode_to_np(from), NULL,
+ compat));
+ } else {
+ return offset_to_ofnode(fdt_node_offset_by_compatible(
+ gd->fdt_blob, ofnode_to_offset(from), compat));
+ }
+}
+
+ofnode ofnode_by_prop_value(ofnode from, const char *propname,
+ const void *propval, int proplen)
+{
+ if (of_live_active()) {
+ return np_to_ofnode(of_find_node_by_prop_value(
+ (struct device_node *)ofnode_to_np(from), propname,
+ propval, proplen));
+ } else {
+ return offset_to_ofnode(fdt_node_offset_by_prop_value(
+ gd->fdt_blob, ofnode_to_offset(from),
+ propname, propval, proplen));
+ }
+}
+
+int ofnode_write_prop(ofnode node, const char *propname, int len,
+ const void *value)
+{
+ const struct device_node *np = ofnode_to_np(node);
+ struct property *pp;
+ struct property *pp_last = NULL;
+ struct property *new;
+
+ if (!of_live_active())
+ return -ENOSYS;
+
+ if (!np)
+ return -EINVAL;
+
+ for (pp = np->properties; pp; pp = pp->next) {
+ if (strcmp(pp->name, propname) == 0) {
+ /* Property exists -> change value */
+ pp->value = (void *)value;
+ pp->length = len;
+ return 0;
+ }
+ pp_last = pp;
+ }
+
+ if (!pp_last)
+ return -ENOENT;
+
+ /* Property does not exist -> append new property */
+ new = malloc(sizeof(struct property));
+ if (!new)
+ return -ENOMEM;
+
+ new->name = strdup(propname);
+ if (!new->name) {
+ free(new);
+ return -ENOMEM;
+ }
+
+ new->value = (void *)value;
+ new->length = len;
+ new->next = NULL;
+
+ pp_last->next = new;
+
+ return 0;
+}
+
+int ofnode_write_string(ofnode node, const char *propname, const char *value)
+{
+ if (!of_live_active())
+ return -ENOSYS;
+
+ assert(ofnode_valid(node));
+
+ debug("%s: %s = %s", __func__, propname, value);
+
+ return ofnode_write_prop(node, propname, strlen(value) + 1, value);
+}
+
+int ofnode_set_enabled(ofnode node, bool value)
+{
+ if (!of_live_active())
+ return -ENOSYS;
+
+ assert(ofnode_valid(node));
+
+ if (value)
+ return ofnode_write_string(node, "status", "okay");
+ else
+ return ofnode_write_string(node, "status", "disabled");
+}
projects / oweals / u-boot.git / blobdiff