diff options
| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-02-18 08:59:09 (GMT) |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-02-23 18:57:40 (GMT) |
| commit | 35c0dc389d42c3d8c20ecdf0829fe9e935084b10 (patch) | |
| tree | d06c768d831dbcdee4894397cb00421d7c38b335 /arch/arm/plat-omap/dma.c | |
| parent | 1ce0f9d4a9a2adebf0754a694a9bd1d5ab870449 (diff) | |
| download | linux-35c0dc389d42c3d8c20ecdf0829fe9e935084b10.tar.xz | |
omap: sdma: Limit the secure reserve channel fix for omap3
The commit 'ba50ea7e' reserves DMA channels 0 and 1 on high
security devices, in order to avoid collision between kernel
dma transfers and ROM code dma transfers.
This fix is applicable only for OMAP3 so add an appropriate
check.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
CC: Kalle Jokiniemi <kalle.jokiniemi@digia.com>
CC: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 5ec96db..049165c 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -2149,7 +2149,8 @@ static int __init omap_init_dma(void) DMA_SYSCONFIG_AUTOIDLE); dma_write(v , OCP_SYSCONFIG); /* reserve dma channels 0 and 1 in high security devices */ - if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + if (cpu_is_omap34xx() && + (omap_type() != OMAP2_DEVICE_TYPE_GP)) { printk(KERN_INFO "Reserving DMA channels 0 and 1 for " "HS ROM code\n"); dma_chan[0].dev_id = 0; |