* [PATCH] imx8mq: soc: Set the BYPASS ID SWAP bit (GPR10 bit 1)
@ 2022-04-10 4:18 Peng Fan (OSS)
2022-04-12 18:48 ` sbabic
0 siblings, 1 reply; 2+ messages in thread
From: Peng Fan (OSS) @ 2022-04-10 4:18 UTC (permalink / raw)
To: u-boot, Stefano Babic, Fabio Estevam, NXP i.MX U-Boot Team; +Cc: Peng Fan
From: Peng Fan <peng.fan@nxp.com>
Set the BYPASS ID SWAP bit (GPR10 bit 1).
The ID SWAP function randomly make TZASC grant non-secure access to
secure memory. TZASC ID SWAP should be bypassed by setting the bit
TZASC_ID_SWAP_BYPASS(bit 1) in IOMUX_GPR10 register.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/mach-imx/imx8m/soc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index 7397b99a1eee..404322cb69f1 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -72,7 +72,7 @@ void enable_tzc380(void)
* According to TRM, TZASC_ID_SWAP_BYPASS should be set in
* order to avoid AXI Bus errors when GPU is in use
*/
- if (is_imx8mm() || is_imx8mn() || is_imx8mp())
+ if (is_imx8mq() || is_imx8mm() || is_imx8mn() || is_imx8mp())
setbits_le32(&gpr->gpr[10], GPR_TZASC_ID_SWAP_BYPASS);
/*
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] imx8mq: soc: Set the BYPASS ID SWAP bit (GPR10 bit 1)
2022-04-10 4:18 [PATCH] imx8mq: soc: Set the BYPASS ID SWAP bit (GPR10 bit 1) Peng Fan (OSS)
@ 2022-04-12 18:48 ` sbabic
0 siblings, 0 replies; 2+ messages in thread
From: sbabic @ 2022-04-12 18:48 UTC (permalink / raw)
To: Peng Fan (OSS), u-boot
> From: Peng Fan <peng.fan@nxp.com>
> Set the BYPASS ID SWAP bit (GPR10 bit 1).
> The ID SWAP function randomly make TZASC grant non-secure access to
> secure memory. TZASC ID SWAP should be bypassed by setting the bit
> TZASC_ID_SWAP_BYPASS(bit 1) in IOMUX_GPR10 register.
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Applied to u-boot-imx, master, thanks !
Best regards,
Stefano Babic
--
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