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powerpc: offb: add support for foreign endianness

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Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anton Vorontsov 2008-04-28 02:14:50 -07:00 committed by Linus Torvalds
parent e4c690e061
commit 7f29b87a77
1 changed files with 12 additions and 3 deletions
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15
drivers/video/offb.c
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@ -248,7 +248,7 @@ static void __iomem *offb_map_reg(struct device_node *np, int index,
static void __init offb_init_fb(const char *name, const char *full_name,
int width, int height, int depth,
int pitch, unsigned long address,
struct device_node *dp)
int foreign_endian, struct device_node *dp)
{
unsigned long res_size = pitch * height * (depth + 7) / 8;
struct offb_par *par = &default_par;
@ -397,7 +397,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
info->screen_base = ioremap(address, fix->smem_len);
info->par = par;
info->pseudo_palette = (void *) (info + 1);
info->flags = FBINFO_DEFAULT;
info->flags = FBINFO_DEFAULT | foreign_endian;
fb_alloc_cmap(&info->cmap, 256, 0);
@ -424,6 +424,15 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
u64 rstart, address = OF_BAD_ADDR;
const u32 *pp, *addrp, *up;
u64 asize;
int foreign_endian = 0;
#ifdef __BIG_ENDIAN
if (of_get_property(dp, "little-endian", NULL))
foreign_endian = FBINFO_FOREIGN_ENDIAN;
#else
if (of_get_property(dp, "big-endian", NULL))
foreign_endian = FBINFO_FOREIGN_ENDIAN;
#endif
pp = of_get_property(dp, "linux,bootx-depth", &len);
if (pp == NULL)
@ -509,7 +518,7 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
offb_init_fb(no_real_node ? "bootx" : dp->name,
no_real_node ? "display" : dp->full_name,
width, height, depth, pitch, address,
no_real_node ? NULL : dp);
foreign_endian, no_real_node ? NULL : dp);
}
}