From: Peng Fan <peng.fan@nxp.com>
Date: Mon, 26 Aug 2019 08:11:49 +0000 (+0000)
Subject: imx8qm: power up SMMU
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=8f99438b095aaf9b6472a21e2f087483439826da;p=u-boot.git

imx8qm: power up SMMU

There is SMMU in i.MX8QM. To use SMMU in Linux, need power up it.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 667f829acd..1a5d811373 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -67,6 +67,13 @@ int arch_cpu_init_dm(void)
 		return ret;
 	}
 
+	if (is_imx8qm()) {
+		ret = sc_pm_set_resource_power_mode(-1, SC_R_SMMU,
+						    SC_PM_PW_MODE_ON);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }