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Commit 7f29b87a authored by Anton Vorontsov's avatar Anton Vorontsov Committed by Linus Torvalds
Browse files

powerpc: offb: add support for foreign endianness 



Signed-off-by: default avatarAnton 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e4c690e0

drivers/video/offb.c

+12 −3
Original line number Diff line number Diff line
@@ -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);

	}

}