[PATCH 08/20] imx8ulp: Set DCNANO read QoS on NIC_LPAV to highest

Peng Fan (OSS) peng.fan at oss.nxp.com
Fri Oct 29 03:46:22 CEST 2021


From: Ye Li <ye.li at nxp.com>

To avoid DCNANO underrun issue on high loading test, set its
read Qos on NIC_LPAV to highest

Reviewed-by: Peng Fan <peng.fan at nxp.com>
Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/mach-imx/imx8ulp/soc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 427b5e4117..0cf4765bd6 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -485,6 +485,9 @@ void lpav_configure(void)
 	writel(0x1f, SIM_SEC_BASE_ADDR + 0x50);
 	writel(0xffffffff, SIM_SEC_BASE_ADDR + 0x54);
 	writel(0x003fffff, SIM_SEC_BASE_ADDR + 0x58);
+
+	/* Set read QoS of dcnano on LPAV NIC */
+	writel(0xf, 0x2e447100);
 }
 
 int arch_cpu_init(void)
-- 
2.30.0



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