* (C) Copyright 2007
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
*/
#include <common.h>
+#include <stdio_dev.h>
#include <linux/ctype.h>
#include <linux/types.h>
#include <asm/global_data.h>
*/
DECLARE_GLOBAL_DATA_PTR;
-/*
- * fdt points to our working device tree.
+/**
+ * fdt_getprop_u32_default - Find a node and return it's property or a default
+ *
+ * @fdt: ptr to device tree
+ * @path: path of node
+ * @prop: property name
+ * @dflt: default value if the property isn't found
+ *
+ * Convenience function to find a node and return it's property or a
+ * default value if it doesn't exist.
*/
-struct fdt_header *fdt;
+u32 fdt_getprop_u32_default(const void *fdt, const char *path,
+ const char *prop, const u32 dflt)
+{
+ const u32 *val;
+ int off;
+
+ off = fdt_path_offset(fdt, path);
+ if (off < 0)
+ return dflt;
-/********************************************************************/
+ val = fdt_getprop(fdt, off, prop, NULL);
+ if (val)
+ return fdt32_to_cpu(*val);
+ else
+ return dflt;
+}
/**
* fdt_find_and_setprop: Find a node and set it's property
}
#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
-static int fdt_fixup_stdout(void *fdt, int choosenoff)
+
+#ifdef 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);
+}
+#endif
+
+static int fdt_fixup_stdout(void *fdt, int chosenoff)
{
int err = 0;
#ifdef CONFIG_CONS_INDEX
char sername[9] = { 0 };
const char *path;
- sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
+ fdt_fill_multisername(sername, sizeof(sername) - 1);
+ if (!sername[0])
+ sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
err = node = fdt_path_offset(fdt, "/aliases");
if (node >= 0) {
err = -FDT_ERR_NOSPACE;
if (p) {
memcpy(p, path, len);
- err = fdt_setprop(fdt, choosenoff,
+ err = fdt_setprop(fdt, chosenoff,
"linux,stdout-path", p, len);
free(p);
}
}
#endif
-int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end, int force)
+int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
{
int nodeoffset;
- int err;
- u32 tmp; /* used to set 32 bit integer properties */
- char *str; /* used to set string properties */
+ int err, j, total;
+ u32 tmp;
const char *path;
+ uint64_t addr, size;
- err = fdt_check_header(fdt);
- if (err < 0) {
- printf("fdt_chosen: %s\n", fdt_strerror(err));
- return err;
+ /* Find the "chosen" node. */
+ nodeoffset = fdt_path_offset (fdt, "/chosen");
+
+ /* If there is no "chosen" node in the blob return */
+ if (nodeoffset < 0) {
+ printf("fdt_initrd: %s\n", fdt_strerror(nodeoffset));
+ return nodeoffset;
}
- if (initrd_start && initrd_end) {
- uint64_t addr, size;
- int total = fdt_num_mem_rsv(fdt);
- int j;
+ /* just return if initrd_start/end aren't valid */
+ if ((initrd_start == 0) || (initrd_end == 0))
+ return 0;
- /*
- * Look for an existing entry and update it. If we don't find
- * the entry, we will j be the next available slot.
- */
- for (j = 0; j < total; j++) {
- err = fdt_get_mem_rsv(fdt, j, &addr, &size);
- if (addr == initrd_start) {
- fdt_del_mem_rsv(fdt, j);
- break;
- }
+ total = fdt_num_mem_rsv(fdt);
+
+ /*
+ * Look for an existing entry and update it. If we don't find
+ * the entry, we will j be the next available slot.
+ */
+ for (j = 0; j < total; j++) {
+ err = fdt_get_mem_rsv(fdt, j, &addr, &size);
+ if (addr == initrd_start) {
+ fdt_del_mem_rsv(fdt, j);
+ break;
}
+ }
- err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1);
+ err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start);
+ if (err < 0) {
+ printf("fdt_initrd: %s\n", fdt_strerror(err));
+ return err;
+ }
+
+ path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
+ if ((path == NULL) || force) {
+ tmp = __cpu_to_be32(initrd_start);
+ err = fdt_setprop(fdt, nodeoffset,
+ "linux,initrd-start", &tmp, sizeof(tmp));
+ if (err < 0) {
+ printf("WARNING: "
+ "could not set linux,initrd-start %s.\n",
+ fdt_strerror(err));
+ return err;
+ }
+ tmp = __cpu_to_be32(initrd_end);
+ err = fdt_setprop(fdt, nodeoffset,
+ "linux,initrd-end", &tmp, sizeof(tmp));
if (err < 0) {
- printf("fdt_chosen: %s\n", fdt_strerror(err));
+ printf("WARNING: could not set linux,initrd-end %s.\n",
+ fdt_strerror(err));
+
return err;
}
}
+ return 0;
+}
+
+int fdt_chosen(void *fdt, int force)
+{
+ int nodeoffset;
+ int err;
+ char *str; /* used to set string properties */
+ const char *path;
+
+ err = fdt_check_header(fdt);
+ if (err < 0) {
+ printf("fdt_chosen: %s\n", fdt_strerror(err));
+ return err;
+ }
+
/*
* Find the "chosen" node.
*/
fdt_strerror(err));
}
}
- if (initrd_start && initrd_end) {
- path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
- if ((path == NULL) || force) {
- tmp = __cpu_to_be32(initrd_start);
- err = fdt_setprop(fdt, nodeoffset,
- "linux,initrd-start", &tmp, sizeof(tmp));
- if (err < 0)
- printf("WARNING: "
- "could not set linux,initrd-start %s.\n",
- fdt_strerror(err));
- tmp = __cpu_to_be32(initrd_end);
- err = fdt_setprop(fdt, nodeoffset,
- "linux,initrd-end", &tmp, sizeof(tmp));
- if (err < 0)
- printf("WARNING: could not set linux,initrd-end %s.\n",
- fdt_strerror(err));
- }
- }
#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
return err;
}
-/********************************************************************/
-
-#ifdef CONFIG_OF_HAS_UBOOT_ENV
-
-/* Function that returns a character from the environment */
-extern uchar(*env_get_char) (int);
-
-
-int fdt_env(void *fdt)
-{
- int nodeoffset;
- int err;
- int k, nxt;
- int i;
- static char tmpenv[256];
-
- err = fdt_check_header(fdt);
- if (err < 0) {
- printf("fdt_env: %s\n", fdt_strerror(err));
- return err;
- }
-
- /*
- * See if we already have a "u-boot-env" node, delete it if so.
- * Then create a new empty node.
- */
- nodeoffset = fdt_path_offset (fdt, "/u-boot-env");
- if (nodeoffset >= 0) {
- err = fdt_del_node(fdt, nodeoffset);
- if (err < 0) {
- printf("fdt_env: %s\n", fdt_strerror(err));
- return err;
- }
- }
- /*
- * Create a new node "/u-boot-env" (offset 0 is root level)
- */
- nodeoffset = fdt_add_subnode(fdt, 0, "u-boot-env");
- if (nodeoffset < 0) {
- printf("WARNING: could not create /u-boot-env %s.\n",
- fdt_strerror(nodeoffset));
- return nodeoffset;
- }
-
- for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
- char *s, *lval, *rval;
-
- /*
- * Find the end of the name=definition
- */
- for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
- ;
- s = tmpenv;
- for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k)
- *s++ = env_get_char(k);
- *s++ = '\0';
- lval = tmpenv;
- /*
- * Find the first '=': it separates the name from the value
- */
- s = strchr(tmpenv, '=');
- if (s != NULL) {
- *s++ = '\0';
- rval = s;
- } else
- continue;
- err = fdt_setprop(fdt, nodeoffset, lval, rval, strlen(rval)+1);
- if (err < 0) {
- printf("WARNING: could not set %s %s.\n",
- lval, fdt_strerror(err));
- return err;
- }
- }
- return 0;
-}
-#endif /* ifdef CONFIG_OF_HAS_UBOOT_ENV */
-
-/********************************************************************/
-
-#ifdef CONFIG_OF_HAS_BD_T
-
-#define BDM(x) { .name = #x, .offset = offsetof(bd_t, bi_ ##x ) }
-
-static const struct {
- const char *name;
- int offset;
-} bd_map[] = {
- BDM(memstart),
- BDM(memsize),
- BDM(flashstart),
- BDM(flashsize),
- BDM(flashoffset),
- BDM(sramstart),
- BDM(sramsize),
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
- || defined(CONFIG_E500)
- BDM(immr_base),
-#endif
-#if defined(CONFIG_MPC5xxx)
- BDM(mbar_base),
-#endif
-#if defined(CONFIG_MPC83XX)
- BDM(immrbar),
-#endif
-#if defined(CONFIG_MPC8220)
- BDM(mbar_base),
- BDM(inpfreq),
- BDM(pcifreq),
- BDM(pevfreq),
- BDM(flbfreq),
- BDM(vcofreq),
-#endif
- BDM(bootflags),
- BDM(ip_addr),
- BDM(intfreq),
- BDM(busfreq),
-#ifdef CONFIG_CPM2
- BDM(cpmfreq),
- BDM(brgfreq),
- BDM(sccfreq),
- BDM(vco),
-#endif
-#if defined(CONFIG_MPC5xxx)
- BDM(ipbfreq),
- BDM(pcifreq),
-#endif
- BDM(baudrate),
-};
-
-
-int fdt_bd_t(void *fdt)
-{
- bd_t *bd = gd->bd;
- int nodeoffset;
- int err;
- u32 tmp; /* used to set 32 bit integer properties */
- int i;
-
- err = fdt_check_header(fdt);
- if (err < 0) {
- printf("fdt_bd_t: %s\n", fdt_strerror(err));
- return err;
- }
-
- /*
- * See if we already have a "bd_t" node, delete it if so.
- * Then create a new empty node.
- */
- nodeoffset = fdt_path_offset (fdt, "/bd_t");
- if (nodeoffset >= 0) {
- err = fdt_del_node(fdt, nodeoffset);
- if (err < 0) {
- printf("fdt_bd_t: %s\n", fdt_strerror(err));
- return err;
- }
- }
- /*
- * Create a new node "/bd_t" (offset 0 is root level)
- */
- nodeoffset = fdt_add_subnode(fdt, 0, "bd_t");
- if (nodeoffset < 0) {
- printf("WARNING: could not create /bd_t %s.\n",
- fdt_strerror(nodeoffset));
- printf("fdt_bd_t: %s\n", fdt_strerror(nodeoffset));
- return nodeoffset;
- }
- /*
- * Use the string/pointer structure to create the entries...
- */
- for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) {
- tmp = cpu_to_be32(getenv("bootargs"));
- err = fdt_setprop(fdt, nodeoffset,
- bd_map[i].name, &tmp, sizeof(tmp));
- if (err < 0)
- printf("WARNING: could not set %s %s.\n",
- bd_map[i].name, fdt_strerror(err));
- }
- /*
- * Add a couple of oddball entries...
- */
- err = fdt_setprop(fdt, nodeoffset, "enetaddr", &bd->bi_enetaddr, 6);
- if (err < 0)
- printf("WARNING: could not set enetaddr %s.\n",
- fdt_strerror(err));
- err = fdt_setprop(fdt, nodeoffset, "ethspeed", &bd->bi_ethspeed, 4);
- if (err < 0)
- printf("WARNING: could not set ethspeed %s.\n",
- fdt_strerror(err));
- return 0;
-}
-#endif /* ifdef CONFIG_OF_HAS_BD_T */
-
void do_fixup_by_path(void *fdt, const char *path, const char *prop,
const void *val, int len, int create)
{
#if defined(DEBUG)
int i;
- debug("Updating property '%s/%s' = ", node, prop);
+ debug("Updating property '%s/%s' = ", path, prop);
for (i = 0; i < len; i++)
debug(" %.2x", *(u8*)(val+i));
debug("\n");
int off;
#if defined(DEBUG)
int i;
- debug("Updating property '%s/%s' = ", node, prop);
+ debug("Updating property '%s' = ", prop);
for (i = 0; i < len; i++)
debug(" %.2x", *(u8*)(val+i));
debug("\n");
int off = -1;
#if defined(DEBUG)
int i;
- debug("Updating property '%s/%s' = ", node, prop);
+ debug("Updating property '%s' = ", prop);
for (i = 0; i < len; i++)
debug(" %.2x", *(u8*)(val+i));
debug("\n");
do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
}
-int fdt_fixup_memory(void *blob, u64 start, u64 size)
+/*
+ * Get cells len in bytes
+ * if #NNNN-cells property is 2 then len is 8
+ * otherwise len is 4
+ */
+static int get_cells_len(void *blob, char *nr_cells_name)
+{
+ const u32 *cell;
+
+ cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
+ if (cell && fdt32_to_cpu(*cell) == 2)
+ return 8;
+
+ return 4;
+}
+
+/*
+ * Write a 4 or 8 byte big endian cell
+ */
+static void write_cell(u8 *addr, u64 val, int size)
{
- int err, nodeoffset, len = 0;
- u8 tmp[16];
- const u32 *addrcell, *sizecell;
+ int shift = (size - 1) * 8;
+ while (size-- > 0) {
+ *addr++ = (val >> shift) & 0xff;
+ shift -= 8;
+ }
+}
+
+int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks)
+{
+ int err, nodeoffset;
+ int addr_cell_len, size_cell_len, len;
+ u8 tmp[banks * 16]; /* Up to 64-bit address + 64-bit size */
+ int bank;
err = fdt_check_header(blob);
if (err < 0) {
return err;
}
- addrcell = fdt_getprop(blob, 0, "#address-cells", NULL);
- /* use shifts and mask to ensure endianness */
- if ((addrcell) && (*addrcell == 2)) {
- tmp[0] = (start >> 56) & 0xff;
- tmp[1] = (start >> 48) & 0xff;
- tmp[2] = (start >> 40) & 0xff;
- tmp[3] = (start >> 32) & 0xff;
- tmp[4] = (start >> 24) & 0xff;
- tmp[5] = (start >> 16) & 0xff;
- tmp[6] = (start >> 8) & 0xff;
- tmp[7] = (start ) & 0xff;
- len = 8;
- } else {
- tmp[0] = (start >> 24) & 0xff;
- tmp[1] = (start >> 16) & 0xff;
- tmp[2] = (start >> 8) & 0xff;
- tmp[3] = (start ) & 0xff;
- len = 4;
- }
-
- sizecell = fdt_getprop(blob, 0, "#size-cells", NULL);
- /* use shifts and mask to ensure endianness */
- if ((sizecell) && (*sizecell == 2)) {
- tmp[0+len] = (size >> 56) & 0xff;
- tmp[1+len] = (size >> 48) & 0xff;
- tmp[2+len] = (size >> 40) & 0xff;
- tmp[3+len] = (size >> 32) & 0xff;
- tmp[4+len] = (size >> 24) & 0xff;
- tmp[5+len] = (size >> 16) & 0xff;
- tmp[6+len] = (size >> 8) & 0xff;
- tmp[7+len] = (size ) & 0xff;
- len += 8;
- } else {
- tmp[0+len] = (size >> 24) & 0xff;
- tmp[1+len] = (size >> 16) & 0xff;
- tmp[2+len] = (size >> 8) & 0xff;
- tmp[3+len] = (size ) & 0xff;
- len += 4;
+ addr_cell_len = get_cells_len(blob, "#address-cells");
+ size_cell_len = get_cells_len(blob, "#size-cells");
+
+ for (bank = 0, len = 0; bank < banks; bank++) {
+ write_cell(tmp + len, start[bank], addr_cell_len);
+ len += addr_cell_len;
+
+ write_cell(tmp + len, size[bank], size_cell_len);
+ len += size_cell_len;
}
err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
return 0;
}
-#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
- defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
+int fdt_fixup_memory(void *blob, u64 start, u64 size)
+{
+ return fdt_fixup_memory_banks(blob, &start, &size, 1);
+}
-void fdt_fixup_ethernet(void *fdt, bd_t *bd)
+void fdt_fixup_ethernet(void *fdt)
{
- int node;
+ int node, i, j;
+ char enet[16], *tmp, *end;
+ char mac[16] = "ethaddr";
const char *path;
+ unsigned char mac_addr[6];
node = fdt_path_offset(fdt, "/aliases");
- if (node >= 0) {
-#if defined(CONFIG_HAS_ETH0)
- path = fdt_getprop(fdt, node, "ethernet0", NULL);
- if (path) {
- do_fixup_by_path(fdt, path, "mac-address",
- bd->bi_enetaddr, 6, 0);
- do_fixup_by_path(fdt, path, "local-mac-address",
- bd->bi_enetaddr, 6, 1);
+ if (node < 0)
+ return;
+
+ 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;
}
+
+ for (j = 0; j < 6; j++) {
+ mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
+ if (tmp)
+ tmp = (*end) ? end+1 : end;
+ }
+
+ 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);
+
+ sprintf(mac, "eth%daddr", ++i);
+ }
+}
+
+/* Resize the fdt to its actual size + a bit of padding */
+int fdt_resize(void *blob)
+{
+ int i;
+ uint64_t addr, size;
+ int total, ret;
+ uint actualsize;
+
+ if (!blob)
+ return 0;
+
+ total = fdt_num_mem_rsv(blob);
+ for (i = 0; i < total; i++) {
+ fdt_get_mem_rsv(blob, i, &addr, &size);
+ if (addr == (uintptr_t)blob) {
+ fdt_del_mem_rsv(blob, i);
+ break;
+ }
+ }
+
+ /*
+ * Calculate the actual size of the fdt
+ * plus the size needed for 5 fdt_add_mem_rsv, one
+ * for the fdt itself and 4 for a possible initrd
+ * ((initrd-start + initrd-end) * 2 (name & value))
+ */
+ actualsize = fdt_off_dt_strings(blob) +
+ fdt_size_dt_strings(blob) + 5 * sizeof(struct fdt_reserve_entry);
+
+ /* Make it so the fdt ends on a page boundary */
+ actualsize = ALIGN(actualsize + ((uintptr_t)blob & 0xfff), 0x1000);
+ actualsize = actualsize - ((uintptr_t)blob & 0xfff);
+
+ /* Change the fdt header to reflect the correct size */
+ fdt_set_totalsize(blob, actualsize);
+
+ /* Add the new reservation */
+ ret = fdt_add_mem_rsv(blob, (uintptr_t)blob, actualsize);
+ if (ret < 0)
+ return ret;
+
+ return actualsize;
+}
+
+#ifdef CONFIG_PCI
+#define CONFIG_SYS_PCI_NR_INBOUND_WIN 4
+
+#define FDT_PCI_PREFETCH (0x40000000)
+#define FDT_PCI_MEM32 (0x02000000)
+#define FDT_PCI_IO (0x01000000)
+#define FDT_PCI_MEM64 (0x03000000)
+
+int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) {
+
+ int addrcell, sizecell, len, r;
+ u32 *dma_range;
+ /* sized based on pci addr cells, size-cells, & address-cells */
+ u32 dma_ranges[(3 + 2 + 2) * CONFIG_SYS_PCI_NR_INBOUND_WIN];
+
+ addrcell = fdt_getprop_u32_default(blob, "/", "#address-cells", 1);
+ sizecell = fdt_getprop_u32_default(blob, "/", "#size-cells", 1);
+
+ dma_range = &dma_ranges[0];
+ for (r = 0; r < hose->region_count; r++) {
+ u64 bus_start, phys_start, size;
+
+ /* skip if !PCI_REGION_SYS_MEMORY */
+ if (!(hose->regions[r].flags & PCI_REGION_SYS_MEMORY))
+ continue;
+
+ bus_start = (u64)hose->regions[r].bus_start;
+ phys_start = (u64)hose->regions[r].phys_start;
+ size = (u64)hose->regions[r].size;
+
+ dma_range[0] = 0;
+ if (size >= 0x100000000ull)
+ dma_range[0] |= FDT_PCI_MEM64;
+ else
+ dma_range[0] |= FDT_PCI_MEM32;
+ if (hose->regions[r].flags & PCI_REGION_PREFETCH)
+ dma_range[0] |= FDT_PCI_PREFETCH;
+#ifdef CONFIG_SYS_PCI_64BIT
+ dma_range[1] = bus_start >> 32;
+#else
+ dma_range[1] = 0;
#endif
-#if defined(CONFIG_HAS_ETH1)
- path = fdt_getprop(fdt, node, "ethernet1", NULL);
- if (path) {
- do_fixup_by_path(fdt, path, "mac-address",
- bd->bi_enet1addr, 6, 0);
- do_fixup_by_path(fdt, path, "local-mac-address",
- bd->bi_enet1addr, 6, 1);
+ dma_range[2] = bus_start & 0xffffffff;
+
+ if (addrcell == 2) {
+ dma_range[3] = phys_start >> 32;
+ dma_range[4] = phys_start & 0xffffffff;
+ } else {
+ dma_range[3] = phys_start & 0xffffffff;
+ }
+
+ if (sizecell == 2) {
+ dma_range[3 + addrcell + 0] = size >> 32;
+ dma_range[3 + addrcell + 1] = size & 0xffffffff;
+ } else {
+ dma_range[3 + addrcell + 0] = size & 0xffffffff;
}
+
+ dma_range += (3 + addrcell + sizecell);
+ }
+
+ len = dma_range - &dma_ranges[0];
+ if (len)
+ fdt_setprop(blob, phb_off, "dma-ranges", &dma_ranges[0], len*4);
+
+ return 0;
+}
#endif
-#if defined(CONFIG_HAS_ETH2)
- path = fdt_getprop(fdt, node, "ethernet2", NULL);
- if (path) {
- do_fixup_by_path(fdt, path, "mac-address",
- bd->bi_enet2addr, 6, 0);
- do_fixup_by_path(fdt, path, "local-mac-address",
- bd->bi_enet2addr, 6, 1);
+
+#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
+/*
+ * Provide a weak default function to return the flash bank size.
+ * There might be multiple non-identical flash chips connected to one
+ * chip-select, so we need to pass an index as well.
+ */
+u32 __flash_get_bank_size(int cs, int idx)
+{
+ extern flash_info_t flash_info[];
+
+ /*
+ * As default, a simple 1:1 mapping is provided. Boards with
+ * a different mapping need to supply a board specific mapping
+ * routine.
+ */
+ return flash_info[cs].size;
+}
+u32 flash_get_bank_size(int cs, int idx)
+ __attribute__((weak, alias("__flash_get_bank_size")));
+
+/*
+ * This function can be used to update the size in the "reg" property
+ * of all NOR FLASH device nodes. This is necessary for boards with
+ * non-fixed NOR FLASH sizes.
+ */
+int fdt_fixup_nor_flash_size(void *blob)
+{
+ char compat[][16] = { "cfi-flash", "jedec-flash" };
+ int off;
+ int len;
+ struct fdt_property *prop;
+ u32 *reg, *reg2;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ off = fdt_node_offset_by_compatible(blob, -1, compat[i]);
+ while (off != -FDT_ERR_NOTFOUND) {
+ int idx;
+
+ /*
+ * Found one compatible node, so fixup the size
+ * int its reg properties
+ */
+ prop = fdt_get_property_w(blob, off, "reg", &len);
+ if (prop) {
+ int tuple_size = 3 * sizeof(reg);
+
+ /*
+ * There might be multiple reg-tuples,
+ * so loop through them all
+ */
+ reg = reg2 = (u32 *)&prop->data[0];
+ for (idx = 0; idx < (len / tuple_size); idx++) {
+ /*
+ * Update size in reg property
+ */
+ reg[2] = flash_get_bank_size(reg[0],
+ idx);
+
+ /*
+ * Point to next reg tuple
+ */
+ reg += 3;
+ }
+
+ fdt_setprop(blob, off, "reg", reg2, len);
+ }
+
+ /* Move to next compatible node */
+ off = fdt_node_offset_by_compatible(blob, off,
+ compat[i]);
}
+ }
+
+ return 0;
+}
#endif
-#if defined(CONFIG_HAS_ETH3)
- path = fdt_getprop(fdt, node, "ethernet3", NULL);
- if (path) {
- do_fixup_by_path(fdt, path, "mac-address",
- bd->bi_enet3addr, 6, 0);
- do_fixup_by_path(fdt, path, "local-mac-address",
- bd->bi_enet3addr, 6, 1);
+
+int fdt_increase_size(void *fdt, int add_len)
+{
+ int newlen;
+
+ newlen = fdt_totalsize(fdt) + add_len;
+
+ /* Open in place with a new len */
+ return fdt_open_into(fdt, fdt, newlen);
+}
+
+#ifdef CONFIG_FDT_FIXUP_PARTITIONS
+#include <jffs2/load_kernel.h>
+#include <mtd_node.h>
+
+struct reg_cell {
+ unsigned int r0;
+ unsigned int r1;
+};
+
+int fdt_del_subnodes(const void *blob, int parent_offset)
+{
+ int off, ndepth;
+ int ret;
+
+ for (ndepth = 0, off = fdt_next_node(blob, parent_offset, &ndepth);
+ (off >= 0) && (ndepth > 0);
+ off = fdt_next_node(blob, off, &ndepth)) {
+ if (ndepth == 1) {
+ debug("delete %s: offset: %x\n",
+ fdt_get_name(blob, off, 0), off);
+ ret = fdt_del_node((void *)blob, off);
+ if (ret < 0) {
+ printf("Can't delete node: %s\n",
+ fdt_strerror(ret));
+ return ret;
+ } else {
+ ndepth = 0;
+ off = parent_offset;
+ }
+ }
+ }
+ return 0;
+}
+
+int fdt_del_partitions(void *blob, int parent_offset)
+{
+ const void *prop;
+ int ndepth = 0;
+ int off;
+ int ret;
+
+ off = fdt_next_node(blob, parent_offset, &ndepth);
+ if (off > 0 && ndepth == 1) {
+ prop = fdt_getprop(blob, off, "label", NULL);
+ if (prop == NULL) {
+ /*
+ * Could not find label property, nand {}; node?
+ * Check subnode, delete partitions there if any.
+ */
+ return fdt_del_partitions(blob, off);
+ } else {
+ ret = fdt_del_subnodes(blob, parent_offset);
+ if (ret < 0) {
+ printf("Can't remove subnodes: %s\n",
+ fdt_strerror(ret));
+ return ret;
+ }
}
+ }
+ return 0;
+}
+
+int fdt_node_set_part_info(void *blob, int parent_offset,
+ struct mtd_device *dev)
+{
+ struct list_head *pentry;
+ struct part_info *part;
+ struct reg_cell cell;
+ int off, ndepth = 0;
+ int part_num, ret;
+ char buf[64];
+
+ ret = fdt_del_partitions(blob, parent_offset);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * Check if it is nand {}; subnode, adjust
+ * the offset in this case
+ */
+ off = fdt_next_node(blob, parent_offset, &ndepth);
+ if (off > 0 && ndepth == 1)
+ parent_offset = off;
+
+ part_num = 0;
+ list_for_each_prev(pentry, &dev->parts) {
+ int newoff;
+
+ part = list_entry(pentry, struct part_info, link);
+
+ debug("%2d: %-20s0x%08x\t0x%08x\t%d\n",
+ part_num, part->name, part->size,
+ part->offset, part->mask_flags);
+
+ sprintf(buf, "partition@%x", part->offset);
+add_sub:
+ ret = fdt_add_subnode(blob, parent_offset, buf);
+ if (ret == -FDT_ERR_NOSPACE) {
+ ret = fdt_increase_size(blob, 512);
+ if (!ret)
+ goto add_sub;
+ else
+ goto err_size;
+ } else if (ret < 0) {
+ printf("Can't add partition node: %s\n",
+ fdt_strerror(ret));
+ return ret;
+ }
+ newoff = ret;
+
+ /* Check MTD_WRITEABLE_CMD flag */
+ if (part->mask_flags & 1) {
+add_ro:
+ ret = fdt_setprop(blob, newoff, "read_only", NULL, 0);
+ if (ret == -FDT_ERR_NOSPACE) {
+ ret = fdt_increase_size(blob, 512);
+ if (!ret)
+ goto add_ro;
+ else
+ goto err_size;
+ } else if (ret < 0)
+ goto err_prop;
+ }
+
+ cell.r0 = cpu_to_fdt32(part->offset);
+ cell.r1 = cpu_to_fdt32(part->size);
+add_reg:
+ ret = fdt_setprop(blob, newoff, "reg", &cell, sizeof(cell));
+ if (ret == -FDT_ERR_NOSPACE) {
+ ret = fdt_increase_size(blob, 512);
+ if (!ret)
+ goto add_reg;
+ else
+ goto err_size;
+ } else if (ret < 0)
+ goto err_prop;
+
+add_label:
+ ret = fdt_setprop_string(blob, newoff, "label", part->name);
+ if (ret == -FDT_ERR_NOSPACE) {
+ ret = fdt_increase_size(blob, 512);
+ if (!ret)
+ goto add_label;
+ else
+ goto err_size;
+ } else if (ret < 0)
+ goto err_prop;
+
+ part_num++;
+ }
+ return 0;
+err_size:
+ printf("Can't increase blob size: %s\n", fdt_strerror(ret));
+ return ret;
+err_prop:
+ printf("Can't add property: %s\n", fdt_strerror(ret));
+ return ret;
+}
+
+/*
+ * Update partitions in nor/nand nodes using info from
+ * mtdparts environment variable. The nodes to update are
+ * specified by node_info structure which contains mtd device
+ * type and compatible string: E. g. the board code in
+ * ft_board_setup() could use:
+ *
+ * struct node_info nodes[] = {
+ * { "fsl,mpc5121-nfc", MTD_DEV_TYPE_NAND, },
+ * { "cfi-flash", MTD_DEV_TYPE_NOR, },
+ * };
+ *
+ * fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
+ */
+void fdt_fixup_mtdparts(void *blob, void *node_info, int node_info_size)
+{
+ struct node_info *ni = node_info;
+ struct mtd_device *dev;
+ char *parts;
+ int i, idx;
+ int noff;
+
+ parts = getenv("mtdparts");
+ if (!parts)
+ return;
+
+ if (mtdparts_init() != 0)
+ return;
+
+ for (i = 0; i < node_info_size; i++) {
+ idx = 0;
+ noff = fdt_node_offset_by_compatible(blob, -1, ni[i].compat);
+ while (noff != -FDT_ERR_NOTFOUND) {
+ debug("%s: %s, mtd dev type %d\n",
+ fdt_get_name(blob, noff, 0),
+ ni[i].compat, ni[i].type);
+ dev = device_find(ni[i].type, idx++);
+ if (dev) {
+ if (fdt_node_set_part_info(blob, noff, dev))
+ return; /* return on error */
+ }
+
+ /* Jump to next flash node */
+ noff = fdt_node_offset_by_compatible(blob, noff,
+ ni[i].compat);
+ }
+ }
+}
+#endif
+
+void fdt_del_node_and_alias(void *blob, const char *alias)
+{
+ int off = fdt_path_offset(blob, alias);
+
+ if (off < 0)
+ return;
+
+ fdt_del_node(blob, off);
+
+ off = fdt_path_offset(blob, "/aliases");
+ fdt_delprop(blob, off, alias);
+}
+
+/* Helper to read a big number; size is in cells (not bytes) */
+static inline u64 of_read_number(const __be32 *cell, int size)
+{
+ u64 r = 0;
+ while (size--)
+ r = (r << 32) | be32_to_cpu(*(cell++));
+ return r;
+}
+
+#define PRu64 "%llx"
+
+/* Max address size we deal with */
+#define OF_MAX_ADDR_CELLS 4
+#define OF_BAD_ADDR ((u64)-1)
+#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
+ (ns) > 0)
+
+/* Debug utility */
+#ifdef DEBUG
+static void of_dump_addr(const char *s, const u32 *addr, int na)
+{
+ printf("%s", s);
+ while(na--)
+ printf(" %08x", *(addr++));
+ printf("\n");
+}
+#else
+static void of_dump_addr(const char *s, const u32 *addr, int na) { }
#endif
+
+/* Callbacks for bus specific translators */
+struct of_bus {
+ const char *name;
+ const char *addresses;
+ void (*count_cells)(void *blob, int parentoffset,
+ int *addrc, int *sizec);
+ u64 (*map)(u32 *addr, const u32 *range,
+ int na, int ns, int pna);
+ int (*translate)(u32 *addr, u64 offset, int na);
+};
+
+/* Default translator (generic bus) */
+static void of_bus_default_count_cells(void *blob, int parentoffset,
+ int *addrc, int *sizec)
+{
+ const u32 *prop;
+
+ if (addrc) {
+ prop = fdt_getprop(blob, parentoffset, "#address-cells", NULL);
+ if (prop)
+ *addrc = be32_to_cpup((u32 *)prop);
+ else
+ *addrc = 2;
+ }
+
+ if (sizec) {
+ prop = fdt_getprop(blob, parentoffset, "#size-cells", NULL);
+ if (prop)
+ *sizec = be32_to_cpup((u32 *)prop);
+ else
+ *sizec = 1;
+ }
+}
+
+static u64 of_bus_default_map(u32 *addr, const u32 *range,
+ int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ cp = of_read_number(range, na);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr, na);
+
+ debug("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n",
+ cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_default_translate(u32 *addr, u64 offset, int na)
+{
+ u64 a = of_read_number(addr, na);
+ memset(addr, 0, na * 4);
+ a += offset;
+ if (na > 1)
+ addr[na - 2] = a >> 32;
+ addr[na - 1] = a & 0xffffffffu;
+
+ return 0;
+}
+
+/* Array of bus specific translators */
+static struct of_bus of_busses[] = {
+ /* Default */
+ {
+ .name = "default",
+ .addresses = "reg",
+ .count_cells = of_bus_default_count_cells,
+ .map = of_bus_default_map,
+ .translate = of_bus_default_translate,
+ },
+};
+
+static int of_translate_one(void * blob, int parent, struct of_bus *bus,
+ struct of_bus *pbus, u32 *addr,
+ int na, int ns, int pna, const char *rprop)
+{
+ const u32 *ranges;
+ int rlen;
+ int rone;
+ u64 offset = OF_BAD_ADDR;
+
+ /* Normally, an absence of a "ranges" property means we are
+ * crossing a non-translatable boundary, and thus the addresses
+ * below the current not cannot be converted to CPU physical ones.
+ * Unfortunately, while this is very clear in the spec, it's not
+ * what Apple understood, and they do have things like /uni-n or
+ * /ht nodes with no "ranges" property and a lot of perfectly
+ * useable mapped devices below them. Thus we treat the absence of
+ * "ranges" as equivalent to an empty "ranges" property which means
+ * a 1:1 translation at that level. It's up to the caller not to try
+ * to translate addresses that aren't supposed to be translated in
+ * the first place. --BenH.
+ */
+ ranges = (u32 *)fdt_getprop(blob, parent, rprop, &rlen);
+ if (ranges == NULL || rlen == 0) {
+ offset = of_read_number(addr, na);
+ memset(addr, 0, pna * 4);
+ debug("OF: no ranges, 1:1 translation\n");
+ goto finish;
+ }
+
+ debug("OF: walking ranges...\n");
+
+ /* Now walk through the ranges */
+ rlen /= 4;
+ rone = na + pna + ns;
+ for (; rlen >= rone; rlen -= rone, ranges += rone) {
+ offset = bus->map(addr, ranges, na, ns, pna);
+ if (offset != OF_BAD_ADDR)
+ break;
+ }
+ if (offset == OF_BAD_ADDR) {
+ debug("OF: not found !\n");
+ return 1;
}
+ memcpy(addr, ranges + na, 4 * pna);
+
+ finish:
+ of_dump_addr("OF: parent translation for:", addr, pna);
+ debug("OF: with offset: "PRu64"\n", offset);
+
+ /* Translate it into parent bus space */
+ return pbus->translate(addr, offset, pna);
+}
+
+/*
+ * Translate an address from the device-tree into a CPU physical address,
+ * this walks up the tree and applies the various bus mappings on the
+ * way.
+ *
+ * Note: We consider that crossing any level with #size-cells == 0 to mean
+ * that translation is impossible (that is we are not dealing with a value
+ * that can be mapped to a cpu physical address). This is not really specified
+ * that way, but this is traditionally the way IBM at least do things
+ */
+u64 __of_translate_address(void *blob, int node_offset, const u32 *in_addr,
+ const char *rprop)
+{
+ int parent;
+ struct of_bus *bus, *pbus;
+ u32 addr[OF_MAX_ADDR_CELLS];
+ int na, ns, pna, pns;
+ u64 result = OF_BAD_ADDR;
+
+ debug("OF: ** translation for device %s **\n",
+ fdt_get_name(blob, node_offset, NULL));
+
+ /* Get parent & match bus type */
+ parent = fdt_parent_offset(blob, node_offset);
+ if (parent < 0)
+ goto bail;
+ bus = &of_busses[0];
+
+ /* Cound address cells & copy address locally */
+ bus->count_cells(blob, parent, &na, &ns);
+ if (!OF_CHECK_COUNTS(na, ns)) {
+ printf("%s: Bad cell count for %s\n", __FUNCTION__,
+ fdt_get_name(blob, node_offset, NULL));
+ goto bail;
+ }
+ memcpy(addr, in_addr, na * 4);
+
+ debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
+ bus->name, na, ns, fdt_get_name(blob, parent, NULL));
+ of_dump_addr("OF: translating address:", addr, na);
+
+ /* Translate */
+ for (;;) {
+ /* Switch to parent bus */
+ node_offset = parent;
+ parent = fdt_parent_offset(blob, node_offset);
+
+ /* If root, we have finished */
+ if (parent < 0) {
+ debug("OF: reached root node\n");
+ result = of_read_number(addr, na);
+ break;
+ }
+
+ /* Get new parent bus and counts */
+ pbus = &of_busses[0];
+ pbus->count_cells(blob, parent, &pna, &pns);
+ if (!OF_CHECK_COUNTS(pna, pns)) {
+ printf("%s: Bad cell count for %s\n", __FUNCTION__,
+ fdt_get_name(blob, node_offset, NULL));
+ break;
+ }
+
+ debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
+ pbus->name, pna, pns, fdt_get_name(blob, parent, NULL));
+
+ /* Apply bus translation */
+ if (of_translate_one(blob, node_offset, bus, pbus,
+ addr, na, ns, pna, rprop))
+ break;
+
+ /* Complete the move up one level */
+ na = pna;
+ ns = pns;
+ bus = pbus;
+
+ of_dump_addr("OF: one level translation:", addr, na);
+ }
+ bail:
+
+ return result;
+}
+
+u64 fdt_translate_address(void *blob, int node_offset, const u32 *in_addr)
+{
+ return __of_translate_address(blob, node_offset, in_addr, "ranges");
+}
+
+/**
+ * fdt_node_offset_by_compat_reg: Find a node that matches compatiable and
+ * who's reg property matches a physical cpu address
+ *
+ * @blob: ptr to device tree
+ * @compat: compatiable string to match
+ * @compat_off: property name
+ *
+ */
+int fdt_node_offset_by_compat_reg(void *blob, const char *compat,
+ phys_addr_t compat_off)
+{
+ int len, off = fdt_node_offset_by_compatible(blob, -1, compat);
+ while (off != -FDT_ERR_NOTFOUND) {
+ u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", &len);
+ if (reg) {
+ if (compat_off == fdt_translate_address(blob, off, reg))
+ return off;
+ }
+ off = fdt_node_offset_by_compatible(blob, off, compat);
+ }
+
+ return -FDT_ERR_NOTFOUND;
+}
+
+/**
+ * fdt_alloc_phandle: Return next free phandle value
+ *
+ * @blob: ptr to device tree
+ */
+int fdt_alloc_phandle(void *blob)
+{
+ int offset, phandle = 0;
+
+ for (offset = fdt_next_node(blob, -1, NULL); offset >= 0;
+ offset = fdt_next_node(blob, offset, NULL)) {
+ phandle = max(phandle, fdt_get_phandle(blob, offset));
+ }
+
+ return phandle + 1;
+}
+
+/*
+ * fdt_set_phandle: Create a phandle property for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ * @phandle: phandle value to set (must be unique)
+ */
+int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle)
+{
+ int ret;
+
+#ifdef DEBUG
+ int off = fdt_node_offset_by_phandle(fdt, phandle);
+
+ if ((off >= 0) && (off != nodeoffset)) {
+ char buf[64];
+
+ fdt_get_path(fdt, nodeoffset, buf, sizeof(buf));
+ printf("Trying to update node %s with phandle %u ",
+ buf, phandle);
+
+ fdt_get_path(fdt, off, buf, sizeof(buf));
+ printf("that already exists in node %s.\n", buf);
+ return -FDT_ERR_BADPHANDLE;
+ }
+#endif
+
+ ret = fdt_setprop_cell(fdt, nodeoffset, "phandle", phandle);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * For now, also set the deprecated "linux,phandle" property, so that we
+ * don't break older kernels.
+ */
+ ret = fdt_setprop_cell(fdt, nodeoffset, "linux,phandle", phandle);
+
+ return ret;
+}
+
+/*
+ * fdt_create_phandle: Create a phandle property for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ */
+unsigned int fdt_create_phandle(void *fdt, int nodeoffset)
+{
+ /* see if there is a phandle already */
+ int phandle = fdt_get_phandle(fdt, nodeoffset);
+
+ /* if we got 0, means no phandle so create one */
+ if (phandle == 0) {
+ int ret;
+
+ phandle = fdt_alloc_phandle(fdt);
+ ret = fdt_set_phandle(fdt, nodeoffset, phandle);
+ if (ret < 0) {
+ printf("Can't set phandle %u: %s\n", phandle,
+ fdt_strerror(ret));
+ return 0;
+ }
+ }
+
+ return phandle;
+}
+
+/*
+ * fdt_set_node_status: Set status for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED,
+ * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE
+ * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE
+ */
+int fdt_set_node_status(void *fdt, int nodeoffset,
+ enum fdt_status status, unsigned int error_code)
+{
+ char buf[16];
+ int ret = 0;
+
+ if (nodeoffset < 0)
+ return nodeoffset;
+
+ switch (status) {
+ case FDT_STATUS_OKAY:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "okay");
+ break;
+ case FDT_STATUS_DISABLED:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "disabled");
+ break;
+ case FDT_STATUS_FAIL:
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", "fail");
+ break;
+ case FDT_STATUS_FAIL_ERROR_CODE:
+ sprintf(buf, "fail-%d", error_code);
+ ret = fdt_setprop_string(fdt, nodeoffset, "status", buf);
+ break;
+ default:
+ printf("Invalid fdt status: %x\n", status);
+ ret = -1;
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * fdt_set_status_by_alias: Set status for the given node given an alias
+ *
+ * @fdt: ptr to device tree
+ * @alias: alias of node to update
+ * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED,
+ * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE
+ * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE
+ */
+int fdt_set_status_by_alias(void *fdt, const char* alias,
+ enum fdt_status status, unsigned int error_code)
+{
+ int offset = fdt_path_offset(fdt, alias);
+
+ return fdt_set_node_status(fdt, offset, status, error_code);
+}
+
+#if defined(CONFIG_VIDEO) || defined(CONFIG_LCD)
+int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf)
+{
+ int noff;
+ int ret;
+
+ noff = fdt_node_offset_by_compatible(blob, -1, compat);
+ if (noff != -FDT_ERR_NOTFOUND) {
+ debug("%s: %s\n", fdt_get_name(blob, noff, 0), compat);
+add_edid:
+ ret = fdt_setprop(blob, noff, "edid", edid_buf, 128);
+ if (ret == -FDT_ERR_NOSPACE) {
+ ret = fdt_increase_size(blob, 512);
+ if (!ret)
+ goto add_edid;
+ else
+ goto err_size;
+ } else if (ret < 0) {
+ printf("Can't add property: %s\n", fdt_strerror(ret));
+ return ret;
+ }
+ }
+ return 0;
+err_size:
+ printf("Can't increase blob size: %s\n", fdt_strerror(ret));
+ return ret;
}
#endif
+
+/*
+ * Verify the physical address of device tree node for a given alias
+ *
+ * This function locates the device tree node of a given alias, and then
+ * verifies that the physical address of that device matches the given
+ * parameter. It displays a message if there is a mismatch.
+ *
+ * Returns 1 on success, 0 on failure
+ */
+int fdt_verify_alias_address(void *fdt, int anode, const char *alias, u64 addr)
+{
+ const char *path;
+ const u32 *reg;
+ int node, len;
+ u64 dt_addr;
+
+ path = fdt_getprop(fdt, anode, alias, NULL);
+ if (!path) {
+ /* If there's no such alias, then it's not a failure */
+ return 1;
+ }
+
+ node = fdt_path_offset(fdt, path);
+ if (node < 0) {
+ printf("Warning: device tree alias '%s' points to invalid "
+ "node %s.\n", alias, path);
+ return 0;
+ }
+
+ reg = fdt_getprop(fdt, node, "reg", &len);
+ if (!reg) {
+ printf("Warning: device tree node '%s' has no address.\n",
+ path);
+ return 0;
+ }
+
+ dt_addr = fdt_translate_address(fdt, node, reg);
+ if (addr != dt_addr) {
+ printf("Warning: U-Boot configured device %s at address %llx,\n"
+ " but the device tree has it address %llx.\n",
+ alias, addr, dt_addr);
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * Returns the base address of an SOC or PCI node
+ */
+u64 fdt_get_base_address(void *fdt, int node)
+{
+ int size;
+ u32 naddr;
+ const u32 *prop;
+
+ prop = fdt_getprop(fdt, node, "#address-cells", &size);
+ if (prop && size == 4)
+ naddr = *prop;
+ else
+ naddr = 2;
+
+ prop = fdt_getprop(fdt, node, "ranges", &size);
+
+ return prop ? fdt_translate_address(fdt, node, prop + naddr) : 0;
+}
projects / karo-tx-uboot.git / blobdiff