#include <libfdt.h>
#include <fdt_support.h>
#include <exports.h>
+#include <fdtdec.h>
/**
* fdt_getprop_u32_default_node - Return a node's property or a default
OF_STDOUT_PATH, strlen(OF_STDOUT_PATH) + 1);
}
#elif defined(CONFIG_OF_STDOUT_VIA_ALIAS) && defined(CONFIG_CONS_INDEX)
-static void fdt_fill_multisername(char *sername, size_t maxlen)
-{
- const char *outname = stdio_devices[stdout]->name;
-
- if (strcmp(outname, "serial") > 0)
- strncpy(sername, outname, maxlen);
-
- /* eserial? */
- if (strcmp(outname + 1, "serial") > 0)
- strncpy(sername, outname + 1, maxlen);
-}
-
static int fdt_fixup_stdout(void *fdt, int chosenoff)
{
int err;
int len;
char tmp[256]; /* long enough */
- fdt_fill_multisername(sername, sizeof(sername) - 1);
- if (!sername[0])
- sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
+ sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
aliasoff = fdt_path_offset(fdt, "/aliases");
if (aliasoff < 0) {
err = aliasoff;
- goto error;
+ goto noalias;
}
path = fdt_getprop(fdt, aliasoff, sername, &len);
if (!path) {
err = len;
- goto error;
+ goto noalias;
}
/* fdt_setprop may break "path" so we copy it to tmp buffer */
memcpy(tmp, path, len);
err = fdt_setprop(fdt, chosenoff, "linux,stdout-path", tmp, len);
-error:
if (err < 0)
printf("WARNING: could not set linux,stdout-path %s.\n",
fdt_strerror(err));
return err;
+
+noalias:
+ printf("WARNING: %s: could not read %s alias: %s\n",
+ __func__, sername, fdt_strerror(err));
+
+ return 0;
}
#else
static int fdt_fixup_stdout(void *fdt, int chosenoff)
return err;
}
+ if (!banks)
+ return 0;
+
len = fdt_pack_reg(blob, tmp, start, size, banks);
err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
void fdt_fixup_ethernet(void *fdt)
{
- int node, i, j;
- char enet[16], *tmp, *end;
+ int i, j, prop;
+ char *tmp, *end;
char mac[16];
const char *path;
unsigned char mac_addr[6];
+ int offset;
- node = fdt_path_offset(fdt, "/aliases");
- if (node < 0)
+ if (fdt_path_offset(fdt, "/aliases") < 0)
return;
- if (!getenv("ethaddr")) {
- if (getenv("usbethaddr")) {
- strcpy(mac, "usbethaddr");
- } else {
- debug("No ethernet MAC Address defined\n");
- return;
- }
- } else {
- strcpy(mac, "ethaddr");
- }
+ /* Cycle through all aliases */
+ for (prop = 0; ; prop++) {
+ const char *name;
+ int len = strlen("ethernet");
- i = 0;
- while ((tmp = getenv(mac)) != NULL) {
- sprintf(enet, "ethernet%d", i);
- path = fdt_getprop(fdt, node, enet, NULL);
- if (!path) {
- debug("No alias for %s\n", enet);
- sprintf(mac, "eth%daddr", ++i);
- continue;
- }
+ /* FDT might have been edited, recompute the offset */
+ offset = fdt_first_property_offset(fdt,
+ fdt_path_offset(fdt, "/aliases"));
+ /* Select property number 'prop' */
+ for (i = 0; i < prop; i++)
+ offset = fdt_next_property_offset(fdt, offset);
- for (j = 0; j < 6; j++) {
- mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
- if (tmp)
- tmp = (*end) ? end+1 : end;
- }
+ if (offset < 0)
+ break;
- do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0);
- do_fixup_by_path(fdt, path, "local-mac-address",
- &mac_addr, 6, 1);
+ path = fdt_getprop_by_offset(fdt, offset, &name, NULL);
+ if (!strncmp(name, "ethernet", len)) {
+ i = trailing_strtol(name);
+ if (i != -1) {
+ if (i == 0)
+ strcpy(mac, "ethaddr");
+ else
+ sprintf(mac, "eth%daddr", i);
+ } else {
+ continue;
+ }
+ tmp = getenv(mac);
+ if (!tmp)
+ continue;
+
+ for (j = 0; j < 6; j++) {
+ mac_addr[j] = tmp ?
+ simple_strtoul(tmp, &end, 16) : 0;
+ if (tmp)
+ tmp = (*end) ? end + 1 : end;
+ }
- sprintf(mac, "eth%daddr", ++i);
+ do_fixup_by_path(fdt, path, "mac-address",
+ &mac_addr, 6, 0);
+ do_fixup_by_path(fdt, path, "local-mac-address",
+ &mac_addr, 6, 1);
+ }
}
}
/* Max address size we deal with */
#define OF_MAX_ADDR_CELLS 4
-#define OF_BAD_ADDR ((u64)-1)
+#define OF_BAD_ADDR FDT_ADDR_T_NONE
#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
(ns) > 0)
static void of_dump_addr(const char *s, const fdt32_t *addr, int na) { }
#endif
-/* Callbacks for bus specific translators */
+/**
+ * struct of_bus - Callbacks for bus specific translators
+ * @name: A string used to identify this bus in debug output.
+ * @addresses: The name of the DT property from which addresses are
+ * to be read, typically "reg".
+ * @match: Return non-zero if the node whose parent is at
+ * parentoffset in the FDT blob corresponds to a bus
+ * of this type, otherwise return zero. If NULL a match
+ * is assumed.
+ * @count_cells:Count how many cells (be32 values) a node whose parent
+ * is at parentoffset in the FDT blob will require to
+ * represent its address (written to *addrc) & size
+ * (written to *sizec).
+ * @map: Map the address addr from the address space of this
+ * bus to that of its parent, making use of the ranges
+ * read from DT to an array at range. na and ns are the
+ * number of cells (be32 values) used to hold and address
+ * or size, respectively, for this bus. pna is the number
+ * of cells used to hold an address for the parent bus.
+ * Returns the address in the address space of the parent
+ * bus.
+ * @translate: Update the value of the address cells at addr within an
+ * FDT by adding offset to it. na specifies the number of
+ * cells used to hold the address being translated. Returns
+ * zero on success, non-zero on error.
+ *
+ * Each bus type will include a struct of_bus in the of_busses array,
+ * providing implementations of some or all of the functions used to
+ * match the bus & handle address translation for its children.
+ */
struct of_bus {
const char *name;
const char *addresses;
+ int (*match)(void *blob, int parentoffset);
void (*count_cells)(void *blob, int parentoffset,
int *addrc, int *sizec);
u64 (*map)(fdt32_t *addr, const fdt32_t *range,
return 0;
}
+#ifdef CONFIG_OF_ISA_BUS
+
+/* ISA bus translator */
+static int of_bus_isa_match(void *blob, int parentoffset)
+{
+ const char *name;
+
+ name = fdt_get_name(blob, parentoffset, NULL);
+ if (!name)
+ return 0;
+
+ return !strcmp(name, "isa");
+}
+
+static void of_bus_isa_count_cells(void *blob, int parentoffset,
+ int *addrc, int *sizec)
+{
+ if (addrc)
+ *addrc = 2;
+ if (sizec)
+ *sizec = 1;
+}
+
+static u64 of_bus_isa_map(fdt32_t *addr, const fdt32_t *range,
+ int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ /* Check address type match */
+ if ((addr[0] ^ range[0]) & cpu_to_be32(1))
+ return OF_BAD_ADDR;
+
+ cp = of_read_number(range + 1, na - 1);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr + 1, na - 1);
+
+ debug("OF: ISA map, cp=%" PRIu64 ", s=%" PRIu64
+ ", da=%" PRIu64 "\n", cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_isa_translate(fdt32_t *addr, u64 offset, int na)
+{
+ return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+#endif /* CONFIG_OF_ISA_BUS */
+
/* Array of bus specific translators */
static struct of_bus of_busses[] = {
+#ifdef CONFIG_OF_ISA_BUS
+ /* ISA */
+ {
+ .name = "isa",
+ .addresses = "reg",
+ .match = of_bus_isa_match,
+ .count_cells = of_bus_isa_count_cells,
+ .map = of_bus_isa_map,
+ .translate = of_bus_isa_translate,
+ },
+#endif /* CONFIG_OF_ISA_BUS */
/* Default */
{
.name = "default",
},
};
+static struct of_bus *of_match_bus(void *blob, int parentoffset)
+{
+ struct of_bus *bus;
+
+ if (ARRAY_SIZE(of_busses) == 1)
+ return of_busses;
+
+ for (bus = of_busses; bus; bus++) {
+ if (!bus->match || bus->match(blob, parentoffset))
+ return bus;
+ }
+
+ /*
+ * We should always have matched the default bus at least, since
+ * it has a NULL match field. If we didn't then it somehow isn't
+ * in the of_busses array or something equally catastrophic has
+ * gone wrong.
+ */
+ assert(0);
+ return NULL;
+}
+
static int of_translate_one(void * blob, int parent, struct of_bus *bus,
struct of_bus *pbus, fdt32_t *addr,
int na, int ns, int pna, const char *rprop)
parent = fdt_parent_offset(blob, node_offset);
if (parent < 0)
goto bail;
- bus = &of_busses[0];
+ bus = of_match_bus(blob, parent);
/* Cound address cells & copy address locally */
bus->count_cells(blob, parent, &na, &ns);
}
/* Get new parent bus and counts */
- pbus = &of_busses[0];
+ pbus = of_match_bus(blob, parent);
pbus->count_cells(blob, parent, &pna, &pns);
if (!OF_CHECK_COUNTS(pna, pns)) {
printf("%s: Bad cell count for %s\n", __FUNCTION__,
projects / people / ms / u-boot.git / blobdiff