[people/ms/u-boot.git] / common / fdt_support.c

/*
 * (C) Copyright 2007
 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <linux/ctype.h>
#include <linux/types.h>
#include <asm/global_data.h>
#include <fdt.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <exports.h>

/*
 * Global data (for the gd->bd)
 */
DECLARE_GLOBAL_DATA_PTR;

/*
 * fdt points to our working device tree.
 */
struct fdt_header *fdt;


/**
 * fdt_find_and_setprop: Find a node and set it's property
 *
 * @fdt: ptr to device tree
 * @node: path of node
 * @prop: property name
 * @val: ptr to new value
 * @len: length of new property value
 * @create: flag to create the property if it doesn't exist
 *
 * Convenience function to directly set a property given the path to the node.
 */
int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
			 const void *val, int len, int create)
{
	int nodeoff = fdt_path_offset(fdt, node);

	if (nodeoff < 0)
		return nodeoff;

	if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL))
		return 0; /* create flag not set; so exit quietly */

	return fdt_setprop(fdt, nodeoff, prop, val, len);
}

#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
static int fdt_fixup_stdout(void *fdt, int choosenoff)
{
	int err = 0;
#ifdef CONFIG_CONS_INDEX
	int node;
	char sername[9] = { 0 };
	const char *path;

	sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);

	err = node = fdt_path_offset(fdt, "/aliases");
	if (node >= 0) {
		int len;
		path = fdt_getprop(fdt, node, sername, &len);
		if (path) {
			char *p = malloc(len);
			err = -FDT_ERR_NOSPACE;
			if (p) {
				memcpy(p, path, len);
				err = fdt_setprop(fdt, choosenoff,
					"linux,stdout-path", p, len);
				free(p);
			}
		} else {
			err = len;
		}
	}
#endif
	if (err < 0)
		printf("WARNING: could not set linux,stdout-path %s.\n",
				fdt_strerror(err));

	return err;
}
#endif

int fdt_chosen(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 */
	const char *path;

	err = fdt_check_header(fdt);
	if (err < 0) {
		printf("fdt_chosen: %s\n", fdt_strerror(err));
		return err;
	}

	if (initrd_start && initrd_end) {
		uint64_t addr, size;
		int  total = fdt_num_mem_rsv(fdt);
		int  j;

		/*
		 * 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);
		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, create it.
	 */
	if (nodeoffset < 0) {
		/*
		 * Create a new node "/chosen" (offset 0 is root level)
		 */
		nodeoffset = fdt_add_subnode(fdt, 0, "chosen");
		if (nodeoffset < 0) {
			printf("WARNING: could not create /chosen %s.\n",
				fdt_strerror(nodeoffset));
			return nodeoffset;
		}
	}

	/*
	 * Create /chosen properites that don't exist in the fdt.
	 * If the property exists, update it only if the "force" parameter
	 * is true.
	 */
	str = getenv("bootargs");
	if (str != NULL) {
		path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL);
		if ((path == NULL) || force) {
			err = fdt_setprop(fdt, nodeoffset,
				"bootargs", str, strlen(str)+1);
			if (err < 0)
				printf("WARNING: could not set bootargs %s.\n",
					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);
	if ((path == NULL) || force)
		err = fdt_fixup_stdout(fdt, nodeoffset);
#endif

#ifdef OF_STDOUT_PATH
	path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
	if ((path == NULL) || force) {
		err = fdt_setprop(fdt, nodeoffset,
			"linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
		if (err < 0)
			printf("WARNING: could not set linux,stdout-path %s.\n",
				fdt_strerror(err));
	}
#endif

	return err;
}

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' = ", path, prop);
	for (i = 0; i < len; i++)
		debug(" %.2x", *(u8*)(val+i));
	debug("\n");
#endif
	int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create);
	if (rc)
		printf("Unable to update property %s:%s, err=%s\n",
			path, prop, fdt_strerror(rc));
}

void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
			  u32 val, int create)
{
	val = cpu_to_fdt32(val);
	do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
}

void do_fixup_by_prop(void *fdt,
		      const char *pname, const void *pval, int plen,
		      const char *prop, const void *val, int len,
		      int create)
{
	int off;
#if defined(DEBUG)
	int i;
	debug("Updating property '%s' = ", prop);
	for (i = 0; i < len; i++)
		debug(" %.2x", *(u8*)(val+i));
	debug("\n");
#endif
	off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen);
	while (off != -FDT_ERR_NOTFOUND) {
		if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
			fdt_setprop(fdt, off, prop, val, len);
		off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen);
	}
}

void do_fixup_by_prop_u32(void *fdt,
			  const char *pname, const void *pval, int plen,
			  const char *prop, u32 val, int create)
{
	val = cpu_to_fdt32(val);
	do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create);
}

void do_fixup_by_compat(void *fdt, const char *compat,
			const char *prop, const void *val, int len, int create)
{
	int off = -1;
#if defined(DEBUG)
	int i;
	debug("Updating property '%s' = ", prop);
	for (i = 0; i < len; i++)
		debug(" %.2x", *(u8*)(val+i));
	debug("\n");
#endif
	off = fdt_node_offset_by_compatible(fdt, -1, compat);
	while (off != -FDT_ERR_NOTFOUND) {
		if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
			fdt_setprop(fdt, off, prop, val, len);
		off = fdt_node_offset_by_compatible(fdt, off, compat);
	}
}

void do_fixup_by_compat_u32(void *fdt, const char *compat,
			    const char *prop, u32 val, int create)
{
	val = cpu_to_fdt32(val);
	do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
}

int fdt_fixup_memory(void *blob, u64 start, u64 size)
{
	int err, nodeoffset, len = 0;
	u8 tmp[16];
	const u32 *addrcell, *sizecell;

	err = fdt_check_header(blob);
	if (err < 0) {
		printf("%s: %s\n", __FUNCTION__, fdt_strerror(err));
		return err;
	}

	/* update, or add and update /memory node */
	nodeoffset = fdt_path_offset(blob, "/memory");
	if (nodeoffset < 0) {
		nodeoffset = fdt_add_subnode(blob, 0, "memory");
		if (nodeoffset < 0)
			printf("WARNING: could not create /memory: %s.\n",
					fdt_strerror(nodeoffset));
		return nodeoffset;
	}
	err = fdt_setprop(blob, nodeoffset, "device_type", "memory",
			sizeof("memory"));
	if (err < 0) {
		printf("WARNING: could not set %s %s.\n", "device_type",
				fdt_strerror(err));
		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;
	}

	err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
	if (err < 0) {
		printf("WARNING: could not set %s %s.\n",
				"reg", fdt_strerror(err));
		return err;
	}
	return 0;
}

#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
    defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)

void fdt_fixup_ethernet(void *fdt, bd_t *bd)
{
	int node;
	const char *path;

	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);
		}
#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);
		}
#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);
		}
#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);
		}
#endif
	}
}
#endif
Commit	Line	Data
64dbbd40 GVB	1	/*
	2	* (C) Copyright 2007
	3	* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <linux/ctype.h>
	26	#include <linux/types.h>
64dbbd40 GVB	27	#include <asm/global_data.h>
	28	#include <fdt.h>
	29	#include <libfdt.h>
	30	#include <fdt_support.h>
151c8b09	31	#include <exports.h>
64dbbd40 GVB	32
	33	/*
	34	* Global data (for the gd->bd)
	35	*/
	36	DECLARE_GLOBAL_DATA_PTR;
	37
bb930e76 GVB	38	/*
	39	* fdt points to our working device tree.
	40	*/
	41	struct fdt_header *fdt;
	42
64dbbd40	43
a3c2933e KG	44	/**
	45	* fdt_find_and_setprop: Find a node and set it's property
	46	*
	47	* @fdt: ptr to device tree
	48	* @node: path of node
	49	* @prop: property name
	50	* @val: ptr to new value
	51	* @len: length of new property value
	52	* @create: flag to create the property if it doesn't exist
	53	*
	54	* Convenience function to directly set a property given the path to the node.
	55	*/
	56	int fdt_find_and_setprop(void fdt, const char node, const char *prop,
	57	const void *val, int len, int create)
	58	{
8d04f02f	59	int nodeoff = fdt_path_offset(fdt, node);
a3c2933e KG	60
	61	if (nodeoff < 0)
	62	return nodeoff;
	63
	64	if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL))
	65	return 0; /* create flag not set; so exit quietly */
	66
	67	return fdt_setprop(fdt, nodeoff, prop, val, len);
	68	}
	69
151c8b09 KG	70	#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
	71	static int fdt_fixup_stdout(void *fdt, int choosenoff)
	72	{
	73	int err = 0;
	74	#ifdef CONFIG_CONS_INDEX
	75	int node;
	76	char sername[9] = { 0 };
	77	const char *path;
	78
	79	sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
	80
	81	err = node = fdt_path_offset(fdt, "/aliases");
	82	if (node >= 0) {
	83	int len;
	84	path = fdt_getprop(fdt, node, sername, &len);
	85	if (path) {
	86	char *p = malloc(len);
	87	err = -FDT_ERR_NOSPACE;
	88	if (p) {
	89	memcpy(p, path, len);
	90	err = fdt_setprop(fdt, choosenoff,
	91	"linux,stdout-path", p, len);
	92	free(p);
	93	}
	94	} else {
	95	err = len;
	96	}
	97	}
	98	#endif
	99	if (err < 0)
	100	printf("WARNING: could not set linux,stdout-path %s.\n",
	101	fdt_strerror(err));
	102
	103	return err;
	104	}
	105	#endif
	106
64dbbd40 GVB	107	int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end, int force)
64dbbd40 GVB	108	{
64dbbd40 GVB	109	int nodeoffset;
64dbbd40 GVB	110	int err;
35ec398f GVB	111	u32 tmp; /* used to set 32 bit integer properties */
35ec398f GVB	112	char str; / used to set string properties */
b60af3d4	113	const char *path;
64dbbd40 GVB	114
	115	err = fdt_check_header(fdt);
	116	if (err < 0) {
5fe6be62	117	printf("fdt_chosen: %s\n", fdt_strerror(err));
64dbbd40 GVB	118	return err;
	119	}
	120
64dbbd40	121	if (initrd_start && initrd_end) {
8d04f02f KG	122	uint64_t addr, size;
8d04f02f KG	123	int total = fdt_num_mem_rsv(fdt);
c28abb9c GVB	124	int j;
c28abb9c GVB	125
c28abb9c GVB	126	/*
	127	* Look for an existing entry and update it. If we don't find
	128	* the entry, we will j be the next available slot.
	129	*/
8d04f02f KG	130	for (j = 0; j < total; j++) {
	131	err = fdt_get_mem_rsv(fdt, j, &addr, &size);
	132	if (addr == initrd_start) {
	133	fdt_del_mem_rsv(fdt, j);
c28abb9c GVB	134	break;
	135	}
	136	}
8d04f02f KG	137
8d04f02f KG	138	err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1);
64dbbd40	139	if (err < 0) {
5fe6be62	140	printf("fdt_chosen: %s\n", fdt_strerror(err));
64dbbd40 GVB	141	return err;
	142	}
	143	}
	144
	145	/*
	146	* Find the "chosen" node.
	147	*/
8d04f02f	148	nodeoffset = fdt_path_offset (fdt, "/chosen");
64dbbd40 GVB	149
64dbbd40 GVB	150	/*
b60af3d4	151	* If there is no "chosen" node in the blob, create it.
64dbbd40 GVB	152	*/
	153	if (nodeoffset < 0) {
	154	/*
	155	* Create a new node "/chosen" (offset 0 is root level)
	156	*/
	157	nodeoffset = fdt_add_subnode(fdt, 0, "chosen");
	158	if (nodeoffset < 0) {
5fe6be62	159	printf("WARNING: could not create /chosen %s.\n",
35ec398f	160	fdt_strerror(nodeoffset));
64dbbd40 GVB	161	return nodeoffset;
	162	}
	163	}
	164
	165	/*
b60af3d4 GVB	166	* Create /chosen properites that don't exist in the fdt.
	167	* If the property exists, update it only if the "force" parameter
	168	* is true.
64dbbd40 GVB	169	*/
	170	str = getenv("bootargs");
	171	if (str != NULL) {
b60af3d4 GVB	172	path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL);
	173	if ((path == NULL) \|\| force) {
	174	err = fdt_setprop(fdt, nodeoffset,
	175	"bootargs", str, strlen(str)+1);
	176	if (err < 0)
	177	printf("WARNING: could not set bootargs %s.\n",
	178	fdt_strerror(err));
	179	}
64dbbd40 GVB	180	}
64dbbd40 GVB	181	if (initrd_start && initrd_end) {
b60af3d4 GVB	182	path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
	183	if ((path == NULL) \|\| force) {
	184	tmp = __cpu_to_be32(initrd_start);
	185	err = fdt_setprop(fdt, nodeoffset,
	186	"linux,initrd-start", &tmp, sizeof(tmp));
	187	if (err < 0)
	188	printf("WARNING: "
	189	"could not set linux,initrd-start %s.\n",
	190	fdt_strerror(err));
	191	tmp = __cpu_to_be32(initrd_end);
	192	err = fdt_setprop(fdt, nodeoffset,
	193	"linux,initrd-end", &tmp, sizeof(tmp));
	194	if (err < 0)
	195	printf("WARNING: could not set linux,initrd-end %s.\n",
	196	fdt_strerror(err));
	197	}
64dbbd40	198	}
151c8b09 KG	199
151c8b09 KG	200	#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
b60af3d4 GVB	201	path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
	202	if ((path == NULL) \|\| force)
	203	err = fdt_fixup_stdout(fdt, nodeoffset);
151c8b09 KG	204	#endif
151c8b09 KG	205
64dbbd40	206	#ifdef OF_STDOUT_PATH
b60af3d4 GVB	207	path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
	208	if ((path == NULL) \|\| force) {
	209	err = fdt_setprop(fdt, nodeoffset,
	210	"linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
	211	if (err < 0)
	212	printf("WARNING: could not set linux,stdout-path %s.\n",
	213	fdt_strerror(err));
	214	}
64dbbd40 GVB	215	#endif
64dbbd40 GVB	216
64dbbd40 GVB	217	return err;
	218	}
	219
e93becf8 KG	220	void do_fixup_by_path(void fdt, const char path, const char *prop,
	221	const void *val, int len, int create)
	222	{
	223	#if defined(DEBUG)
	224	int i;
d9ad115b	225	debug("Updating property '%s/%s' = ", path, prop);
e93becf8 KG	226	for (i = 0; i < len; i++)
	227	debug(" %.2x", (u8)(val+i));
	228	debug("\n");
	229	#endif
	230	int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create);
	231	if (rc)
	232	printf("Unable to update property %s:%s, err=%s\n",
	233	path, prop, fdt_strerror(rc));
	234	}
	235
	236	void do_fixup_by_path_u32(void fdt, const char path, const char *prop,
	237	u32 val, int create)
	238	{
	239	val = cpu_to_fdt32(val);
	240	do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
	241	}
	242
9eb77cea KG	243	void do_fixup_by_prop(void *fdt,
	244	const char pname, const void pval, int plen,
	245	const char prop, const void val, int len,
	246	int create)
	247	{
	248	int off;
	249	#if defined(DEBUG)
	250	int i;
d9ad115b	251	debug("Updating property '%s' = ", prop);
9eb77cea KG	252	for (i = 0; i < len; i++)
	253	debug(" %.2x", (u8)(val+i));
	254	debug("\n");
	255	#endif
	256	off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen);
	257	while (off != -FDT_ERR_NOTFOUND) {
	258	if (create \|\| (fdt_get_property(fdt, off, prop, 0) != NULL))
	259	fdt_setprop(fdt, off, prop, val, len);
	260	off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen);
	261	}
	262	}
	263
	264	void do_fixup_by_prop_u32(void *fdt,
	265	const char pname, const void pval, int plen,
	266	const char *prop, u32 val, int create)
	267	{
	268	val = cpu_to_fdt32(val);
	269	do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create);
	270	}
	271
	272	void do_fixup_by_compat(void fdt, const char compat,
	273	const char prop, const void val, int len, int create)
	274	{
	275	int off = -1;
	276	#if defined(DEBUG)
	277	int i;
d9ad115b	278	debug("Updating property '%s' = ", prop);
9eb77cea KG	279	for (i = 0; i < len; i++)
	280	debug(" %.2x", (u8)(val+i));
	281	debug("\n");
	282	#endif
	283	off = fdt_node_offset_by_compatible(fdt, -1, compat);
	284	while (off != -FDT_ERR_NOTFOUND) {
	285	if (create \|\| (fdt_get_property(fdt, off, prop, 0) != NULL))
	286	fdt_setprop(fdt, off, prop, val, len);
	287	off = fdt_node_offset_by_compatible(fdt, off, compat);
	288	}
	289	}
	290
	291	void do_fixup_by_compat_u32(void fdt, const char compat,
	292	const char *prop, u32 val, int create)
	293	{
	294	val = cpu_to_fdt32(val);
	295	do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
	296	}
	297
3c927281 KG	298	int fdt_fixup_memory(void *blob, u64 start, u64 size)
	299	{
	300	int err, nodeoffset, len = 0;
	301	u8 tmp[16];
	302	const u32 addrcell, sizecell;
	303
	304	err = fdt_check_header(blob);
	305	if (err < 0) {
	306	printf("%s: %s\n", __FUNCTION__, fdt_strerror(err));
	307	return err;
	308	}
	309
	310	/* update, or add and update /memory node */
	311	nodeoffset = fdt_path_offset(blob, "/memory");
	312	if (nodeoffset < 0) {
	313	nodeoffset = fdt_add_subnode(blob, 0, "memory");
	314	if (nodeoffset < 0)
	315	printf("WARNING: could not create /memory: %s.\n",
	316	fdt_strerror(nodeoffset));
	317	return nodeoffset;
	318	}
	319	err = fdt_setprop(blob, nodeoffset, "device_type", "memory",
	320	sizeof("memory"));
	321	if (err < 0) {
	322	printf("WARNING: could not set %s %s.\n", "device_type",
	323	fdt_strerror(err));
	324	return err;
	325	}
	326
	327	addrcell = fdt_getprop(blob, 0, "#address-cells", NULL);
	328	/* use shifts and mask to ensure endianness */
	329	if ((addrcell) && (*addrcell == 2)) {
	330	tmp[0] = (start >> 56) & 0xff;
	331	tmp[1] = (start >> 48) & 0xff;
	332	tmp[2] = (start >> 40) & 0xff;
	333	tmp[3] = (start >> 32) & 0xff;
	334	tmp[4] = (start >> 24) & 0xff;
	335	tmp[5] = (start >> 16) & 0xff;
	336	tmp[6] = (start >> 8) & 0xff;
	337	tmp[7] = (start ) & 0xff;
	338	len = 8;
	339	} else {
	340	tmp[0] = (start >> 24) & 0xff;
	341	tmp[1] = (start >> 16) & 0xff;
	342	tmp[2] = (start >> 8) & 0xff;
	343	tmp[3] = (start ) & 0xff;
	344	len = 4;
	345	}
	346
	347	sizecell = fdt_getprop(blob, 0, "#size-cells", NULL);
	348	/* use shifts and mask to ensure endianness */
	349	if ((sizecell) && (*sizecell == 2)) {
	350	tmp[0+len] = (size >> 56) & 0xff;
	351	tmp[1+len] = (size >> 48) & 0xff;
	352	tmp[2+len] = (size >> 40) & 0xff;
	353	tmp[3+len] = (size >> 32) & 0xff;
	354	tmp[4+len] = (size >> 24) & 0xff;
	355	tmp[5+len] = (size >> 16) & 0xff;
	356	tmp[6+len] = (size >> 8) & 0xff;
	357	tmp[7+len] = (size ) & 0xff;
	358	len += 8;
	359	} else {
	360	tmp[0+len] = (size >> 24) & 0xff;
	361	tmp[1+len] = (size >> 16) & 0xff;
362	tmp[2+len] = (size >> 8) & 0xff;
363	tmp[3+len] = (size ) & 0xff;
364	len += 4;
365	}
366
367	err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
368	if (err < 0) {
369	printf("WARNING: could not set %s %s.\n",
370	"reg", fdt_strerror(err));
371	return err;
372	}
373	return 0;
374	}
375
c01b17dd GVB	376	#if defined(CONFIG_HAS_ETH0) \|\| defined(CONFIG_HAS_ETH1) \|\|\
	377	defined(CONFIG_HAS_ETH2) \|\| defined(CONFIG_HAS_ETH3)
	378
ab544633 KG	379	void fdt_fixup_ethernet(void fdt, bd_t bd)
	380	{
	381	int node;
	382	const char *path;
	383
	384	node = fdt_path_offset(fdt, "/aliases");
	385	if (node >= 0) {
	386	#if defined(CONFIG_HAS_ETH0)
	387	path = fdt_getprop(fdt, node, "ethernet0", NULL);
	388	if (path) {
	389	do_fixup_by_path(fdt, path, "mac-address",
	390	bd->bi_enetaddr, 6, 0);
	391	do_fixup_by_path(fdt, path, "local-mac-address",
	392	bd->bi_enetaddr, 6, 1);
	393	}
	394	#endif
	395	#if defined(CONFIG_HAS_ETH1)
	396	path = fdt_getprop(fdt, node, "ethernet1", NULL);
	397	if (path) {
	398	do_fixup_by_path(fdt, path, "mac-address",
	399	bd->bi_enet1addr, 6, 0);
	400	do_fixup_by_path(fdt, path, "local-mac-address",
	401	bd->bi_enet1addr, 6, 1);
	402	}
	403	#endif
	404	#if defined(CONFIG_HAS_ETH2)
	405	path = fdt_getprop(fdt, node, "ethernet2", NULL);
	406	if (path) {
	407	do_fixup_by_path(fdt, path, "mac-address",
	408	bd->bi_enet2addr, 6, 0);
	409	do_fixup_by_path(fdt, path, "local-mac-address",
	410	bd->bi_enet2addr, 6, 1);
	411	}
	412	#endif
	413	#if defined(CONFIG_HAS_ETH3)
	414	path = fdt_getprop(fdt, node, "ethernet3", NULL);
	415	if (path) {
	416	do_fixup_by_path(fdt, path, "mac-address",
	417	bd->bi_enet3addr, 6, 0);
	418	do_fixup_by_path(fdt, path, "local-mac-address",
	419	bd->bi_enet3addr, 6, 1);
	420	}
	421	#endif
	422	}
	423	}
c01b17dd	424	#endif