[U-Boot] [PATCH 3/5] imx: mx6qp: Adjust AQos settings for peripherals

[Peng Fan]

To resolve USB camera bandwidth issue, the patch sets recommended AQoS
setting from IC team value for peripheral and only on imx6qp.

Signed-off-by: Peng Fan <peng....@nxp.com>
Cc: Stefano Babic <sba...@denx.de>
Cc: Fabio Estevam <fabio.este...@nxp.com>
---
 arch/arm/mach-imx/mx6/soc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c
index 9c3c8dd..e2ecc3a 100644
--- a/arch/arm/mach-imx/mx6/soc.c
+++ b/arch/arm/mach-imx/mx6/soc.c
@@ -362,6 +362,9 @@ static void set_preclk_from_osc(void)
 
 int arch_cpu_init(void)
 {
+       struct sched_ctrl_regs *regs =
+               (struct sched_ctrl_regs *)MF2_SCHED_BASE_ADDR;
+
        init_aips();
 
        /* Need to clear MMDC_CHx_MASK to make warm reset work. */
@@ -431,6 +434,14 @@ int arch_cpu_init(void)
 
        imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */
 
+       /*
+        * To resolve USB camera bandwidth issue, the patch sets
+        * recommended AQoS setting from IC team value for peripheral
+        * and only on imx6qp.
+        */
+       if (is_mx6dqp())
+               writel(0x80000201, &regs->aqos[AQOS_FAST1FARIC_ID].priority);
+
        init_src();
 
        return 0;
-- 
2.6.2

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