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[POWERPC] Add device tree fixups for the EFIKA 

We make the efika device tree compliant with the defined bindings
(at least compliant enough). This is mostly done by mangling
the device_type and compatible properties, but also adding
some missing bits.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Sylvain Munaut 2007-02-12 23:13:20 +01:00 committed by Paul Mackerras
parent 05cbbc692f
commit 88fd2a9d68
1 changed files with 81 additions and 0 deletions
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81
arch/powerpc/kernel/prom_init.c
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@ -2117,11 +2117,92 @@ static void __init fixup_device_tree_pmac(void)
#define fixup_device_tree_pmac()
#endif
#ifdef CONFIG_PPC_EFIKA
/* The current fw of the Efika has a device tree needs quite a few
* fixups to be compliant with the mpc52xx bindings. It's currently
* unknown if it will ever be compliant (come on bPlan ...) so we do fixups.
* NOTE that we (barely) tolerate it because the EFIKA was out before
* the bindings were finished, for any new boards -> RTFM ! */
struct subst_entry {
char *path;
char *property;
void *value;
int value_len;
};
static void __init fixup_device_tree_efika(void)
{
/* Substitution table */
#define prop_cstr(x) x, sizeof(x)
int prop_sound_irq[3] = { 2, 2, 0 };
int prop_bcomm_irq[3*16] = { 3,0,0, 3,1,0, 3,2,0, 3,3,0,
3,4,0, 3,5,0, 3,6,0, 3,7,0,
3,8,0, 3,9,0, 3,10,0, 3,11,0,
3,12,0, 3,13,0, 3,14,0, 3,15,0 };
struct subst_entry efika_subst_table[] = {
{ "/", "device_type", prop_cstr("efika") },
{ "/builtin", "compatible", prop_cstr("soc") },
{ "/builtin/ata", "compatible", prop_cstr("mpc5200b-ata\0mpc5200-ata"), },
{ "/builtin/bestcomm", "compatible", prop_cstr("mpc5200b-bestcomm\0mpc5200-bestcomm") },
{ "/builtin/bestcomm", "interrupts", prop_bcomm_irq, sizeof(prop_bcomm_irq) },
{ "/builtin/ethernet", "compatible", prop_cstr("mpc5200b-fec\0mpc5200-fec") },
{ "/builtin/pic", "compatible", prop_cstr("mpc5200b-pic\0mpc5200-pic") },
{ "/builtin/serial", "compatible", prop_cstr("mpc5200b-psc-uart\0mpc5200-psc-uart") },
{ "/builtin/sound", "compatible", prop_cstr("mpc5200b-psc-ac97\0mpc5200-psc-ac97") },
{ "/builtin/sound", "interrupts", prop_sound_irq, sizeof(prop_sound_irq) },
{ "/builtin/sram", "compatible", prop_cstr("mpc5200b-sram\0mpc5200-sram") },
{ "/builtin/sram", "device_type", prop_cstr("sram") },
{}
};
#undef prop_cstr
/* Vars */
u32 node;
char prop[64];
int rv, i;
/* Check if we're really running on a EFIKA */
node = call_prom("finddevice", 1, 1, ADDR("/"));
if (!PHANDLE_VALID(node))
return;
rv = prom_getprop(node, "model", prop, sizeof(prop));
if (rv == PROM_ERROR)
return;
if (strcmp(prop, "EFIKA5K2"))
return;
prom_printf("Applying EFIKA device tree fixups\n");
/* Process substitution table */
for (i=0; efika_subst_table[i].path; i++) {
struct subst_entry *se = &efika_subst_table[i];
node = call_prom("finddevice", 1, 1, ADDR(se->path));
if (!PHANDLE_VALID(node)) {
prom_printf("fixup_device_tree_efika: ",
"skipped entry %x - not found\n", i);
continue;
}
rv = prom_setprop(node, se->path, se->property,
se->value, se->value_len );
if (rv == PROM_ERROR)
prom_printf("fixup_device_tree_efika: ",
"skipped entry %x - setprop error\n", i);
}
}
#else
#define fixup_device_tree_efika()
#endif
static void __init fixup_device_tree(void)
{
fixup_device_tree_maple();
fixup_device_tree_chrp();
fixup_device_tree_pmac();
fixup_device_tree_efika();
}
static void __init prom_find_boot_cpu(void)