Patchwork [v4,10/11] wii: enable swiotlb

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Submitter Albert Herranz
Date March 12, 2010, 7:12 p.m.
Message ID <1268421166-4791-11-git-send-email-albert_herranz@yahoo.es>
Download mbox | patch
Permalink /patch/47696/
State Superseded
Headers show

Comments

Albert Herranz - March 12, 2010, 7:12 p.m.
Enable the use of a software IO TLB on the Nintendo Wii video game console.

This is used by the platform DMA support code to overcome the limitations
found in some of the devices within the "Hollywood" chipset.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
---
 arch/powerpc/platforms/embedded6xx/wii.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c
index 57e5b60..6ad5c0a 100644
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -164,6 +164,8 @@  static void __init wii_setup_arch(void)
 		clrbits32(hw_gpio + HW_GPIO_OUT(0),
 			  HW_GPIO_SLOT_LED | HW_GPIO_SENSOR_BAR);
 	}
+	swiotlb_set_default_size(1<<20); /* 1 MB */
+	ppc_swiotlb_enable = 1;
 }
 
 static void wii_restart(char *cmd)