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 <b37...@freescale.com> Signed-off-by: Peng Fan <peng....@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 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot