[U-Boot] [PATCH v2 8/8] imx: mx6qp: Adjust AQos settings for peripherals
Peng Fan
Peng.Fan at freescale.com
Thu Jun 11 12:30:42 CEST 2015
To resolve USB camera bandwidth issue, increase the priority
to make peripheral can fetch data from memory in time. Recommended
AQoS setting from IC team value for peripheral and only on imx6qp.
The address is: 0xbb0608, the value is: 0x80000201
Signed-off-by: Ye.Li <B37916 at freescale.com>
Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
---
Changes v2:
improve comments
arch/arm/cpu/armv7/mx6/soc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index bcfa2f6..e3e1494 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -424,6 +424,14 @@ int arch_cpu_init(void)
init_src();
+ /*
+ * To resolve USB camera bandwidth issue, increase the priority
+ * to make pheripheral can fetch data from memory in time. Recommended
+ * AQoS setting from IC team value for peripheral and only on imx6qp.
+ */
+ if (is_mx6dqp())
+ writel(0x80000201, 0xbb0608);
+
return 0;
}
--
1.8.4
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