[PATCH 04/24] omap: sdma: Limit the secure reserve channel fix for omap3

Santosh Shilimkar
2010-02-16T15:58:56Z

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>
---
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;
--
1.6.0.4