Hi Ameya,
Ameya Palande wrote:
Hi Tomi,
When I tried to boot 2.6.36-rc1 kernel on Nokia N900, omapfb failed with
following error messages:
[ 0.124145] OMAP DSS rev 2.0
[ 0.124237] OMAP DISPC rev 3.0
[ 0.303833] acx565akm spi1.2: omapfb: acx565akm rev 8b LCD detected
[ 0.805419] omapfb omapfb: failed to allocate framebuffer
[ 0.810882] omapfb omapfb: failed to allocate fbmem
[ 0.815856] omapfb omapfb: failed to setup omapfb
[ 0.820648] omapfb: probe of omapfb failed with error -12
Can you try this one:
From 28de4496224d1e2ae72dcb5bb52b72d850d3cc49 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike@xxxxxxxxxxxxxx>
Date: Mon, 23 Aug 2010 09:40:09 +0300
Subject: [PATCH] OMAP: DSS2: OMAPFB: use phys_to_virt for RAM mappings
After commit 309caa9cc6ff39d261264ec4ff10e29489afc8f8 (ARM: Prohibit
ioremap() on kernel managed RAM) it is impossible to ioremap SDRAM for
the framebuffer. Use phys_to_virt for kernel managed RAM mapping and
ioremap for other memory types
Reported-by: Ameya Palande <ameya.palande@xxxxxxxxx>
Signed-off-by: Mike Rapoport <mike@xxxxxxxxxxxxxx>
---
drivers/video/omap2/omapfb/omapfb-main.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 04034d4..7f7b1c2 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1436,7 +1436,10 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
}
if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
- vaddr = ioremap_wc(paddr, size);
+ if (region_mem_type(paddr) == OMAP_VRAM_MEMTYPE_SDRAM)
+ vaddr = phys_to_virt(paddr);
+ else
+ vaddr = ioremap_wc(paddr, size);
if (!vaddr) {
dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
--
1.6.6.2
--
Sincerely yours,
Mike.
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