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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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6fb4efc68f
Add the latest version of the flatdevtree code and corresponding glue. A phandle table now tracks values returned by ft_find_device(). The value returned by ft_find_device() is a phandle which is really an index into the phandle table. The phandle table contains the address of the corresponding node. When the flat dt is edited/moved, the node pointers in the phandle table are updated accordingly so no phandles kept by the caller become stale. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
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* This file does the necessary interface mapping between the bootwrapper
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* device tree operations and the interface provided by shared source
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* files flatdevicetree.[ch].
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*
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* Author: Mark A. Greer <mgreer@mvista.com>
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*
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* 2006 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <stddef.h>
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#include "flatdevtree.h"
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#include "ops.h"
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static struct ft_cxt cxt;
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static void *ft_finddevice(const char *name)
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{
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return ft_find_device(&cxt, name);
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}
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static int ft_getprop(const void *phandle, const char *propname, void *buf,
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const int buflen)
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{
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return ft_get_prop(&cxt, phandle, propname, buf, buflen);
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}
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static int ft_setprop(const void *phandle, const char *propname,
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const void *buf, const int buflen)
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{
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return ft_set_prop(&cxt, phandle, propname, buf, buflen);
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}
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static void ft_pack(void)
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{
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ft_end_tree(&cxt);
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}
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static unsigned long ft_addr(void)
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{
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return (unsigned long)cxt.bph;
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}
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int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device)
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{
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dt_ops.finddevice = ft_finddevice;
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dt_ops.getprop = ft_getprop;
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dt_ops.setprop = ft_setprop;
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dt_ops.ft_pack = ft_pack;
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dt_ops.ft_addr = ft_addr;
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return ft_open(&cxt, dt_blob, max_size, max_find_device,
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platform_ops.realloc);
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}
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