[U-Boot] [PATCH v2 15/26] imx8m: set BYPASS ID SWAP to avoid AXI bus errors

Peng Fan peng.fan at nxp.com
Mon Aug 19 09:43:13 UTC 2019


set the BYPASS ID SWAP bit (GPR10 bit 1) in order for GPU not to
generated AXI bus errors with TZC380 enabled.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/mach-imx/imx8m/soc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index dd393b581b..261f586fc0 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -55,6 +55,8 @@ void enable_tzc380(void)
 	/* Enable TZASC and lock setting */
 	setbits_le32(&gpr->gpr[10], GPR_TZASC_EN);
 	setbits_le32(&gpr->gpr[10], GPR_TZASC_EN_LOCK);
+	if (IS_ENABLED(CONFIG_IMX8MM))
+		setbits_le32(&gpr->gpr[10], BIT(1));
 }
 
 void set_wdog_reset(struct wdog_regs *wdog)
-- 
2.16.4



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