AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[POWERPC] Add device tree fixups for the EFIKA

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
arch/powerpc/kernel/prom_init.c
View File

@ -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)