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Add a flattened device tree (fdt) command (2 of 2)

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Modifications to the existing code to support the new fdt command.
This commit is contained in:
Gerald Van Baren
2007-03-31 12:23:51 -04:00
parent 781e09ee6e
commit 213bf8c822
8 changed files with 237 additions and 27 deletions
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102
cpu/mpc83xx/cpu.c
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@@ -30,8 +30,14 @@
#include <watchdog.h>
#include <command.h>
#include <mpc83xx.h>
#include <ft_build.h>
#include <asm/processor.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#include <libfdt_env.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -291,6 +297,100 @@ void watchdog_reset (void)
}
#endif
#if defined(CONFIG_OF_LIBFDT)
/*
* Fixups to the fdt. If "create" is TRUE, the node is created
* unconditionally. If "create" is FALSE, the node is updated
* only if it already exists.
*/
#define FT_UPDATE 0x00000000 /* update existing property only */
#define FT_CREATE 0x00000001 /* create property if it doesn't exist */
#define FT_BUSFREQ 0x00000002 /* source is bd->bi_busfreq */
#define FT_ENETADDR 0x00000004 /* source is bd->bi_enetaddr */
static const struct {
int createflags;
char *node;
char *prop;
} fixup_props[] = {
{ FT_CREATE | FT_BUSFREQ,
"/cpus/" OF_CPU,
"bus-frequency",
},
{ FT_CREATE | FT_BUSFREQ,
"/cpus/" OF_SOC,
"bus-frequency"
},
{ FT_CREATE | FT_BUSFREQ,
"/" OF_SOC "/serial@4500/",
"clock-frequency"
},
{ FT_CREATE | FT_BUSFREQ,
"/" OF_SOC "/serial@4600/",
"clock-frequency"
},
#ifdef CONFIG_MPC83XX_TSEC1
{ FT_UPDATE | FT_ENETADDR,
"/" OF_SOC "/ethernet@24000,
"mac-address",
},
{ FT_UPDATE | FT_ENETADDR,
"/" OF_SOC "/ethernet@24000,
"local-mac-address",
},
#endif
#ifdef CONFIG_MPC83XX_TSEC2
{ FT_UPDATE | FT_ENETADDR,
"/" OF_SOC "/ethernet@25000,
"mac-address",
},
{ FT_UPDATE | FT_ENETADDR,
"/" OF_SOC "/ethernet@25000,
"local-mac-address",
},
#endif
};
void
ft_cpu_setup(void *blob, bd_t *bd)
{
int nodeoffset;
int err;
int j;
for (j = 0; j < (sizeof(fixup_props) / sizeof(fixup_props[0])); j++) {
nodeoffset = fdt_path_offset (fdt, fixup_props[j].node);
if (nodeoffset >= 0) {
/*
* If unconditional create or the property already exists...
*/
if ((fixup_props[j].createflags & FT_CREATE) ||
(fdt_get_property(fdt, nodeoffset, fixup_props[j].prop, 0))) {
if (fixup_props[j].createflags & FT_BUSFREQ) {
u32 tmp;
tmp = cpu_to_be32(bd->bi_busfreq);
err = fdt_setprop(fdt, nodeoffset,
fixup_props[j].prop, &tmp, sizeof(tmp));
} else if (fixup_props[j].createflags & FT_ENETADDR) {
err = fdt_setprop(fdt, nodeoffset,
fixup_props[j].prop, bd->bi_enetaddr, 6);
} else {
printf("ft_cpu_setup: %s %s has no flag for the value to set\n",
fixup_props[j].node,
fixup_props[j].prop);
}
if (err < 0)
printf("libfdt: %s %s returned %s\n",
fixup_props[j].node,
fixup_props[j].prop,
fdt_strerror(err));
}
}
}
}
#endif
#if defined(CONFIG_OF_FLAT_TREE)
void
ft_cpu_setup(void *blob, bd_t *bd)