[U-Boot] [PATCH 6/6] armv8: ls1028a: erratum A050382 workaround

[Priyanka Jain]

>-----Original Message-----
>From: u-boot-bounces at linux.nxdi.nxp.com <u-boot-
>bounces at linux.nxdi.nxp.com> On Behalf Of Laurentiu Tudor
>Sent: Thursday, October 17, 2019 2:52 PM
>To: u-boot at lists.denx.de; Prabhakar X <prabhakar.kushwaha at nxp.com>
>Subject: [u-boot] [PATCH 6/6] armv8: ls1028a: erratum A050382 workaround
"Add erratum"
>
>From: Laurentiu Tudor <laurentiu.tudor at nxp.com>
>
>Description:
Whose description?
Please reword to something like "erratum A050382 states that "
>  The eDMA ICID programmed in the eDMA_AMQR register in DCFG is not
>  correctly forwarded to the SMMU.
>Workaround:
>  Program eDMA ICID in the eDMA_AMQR register in DCFG to 0x28.
>
>Signed-off-by: Laurentiu Tudor <laurentiu.tudor at nxp.com>
>---
> arch/arm/cpu/armv8/fsl-layerscape/Kconfig         |  3 +++
> .../asm/arch-fsl-layerscape/stream_id_lsch3.h     | 15 +++++++++++++++
> 2 files changed, 18 insertions(+)
>
>diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>index 24c606a232..046dcf539e 100644
>--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>@@ -45,6 +45,7 @@ config ARCH_LS1028A
> 	select SYS_FSL_ERRATUM_A008514 if !TFABOOT
> 	select SYS_FSL_ERRATUM_A009663 if !TFABOOT
> 	select SYS_FSL_ERRATUM_A009942 if !TFABOOT
>+	select SYS_FSL_ERRATUM_A050382
> 	imply PANIC_HANG
>
> config ARCH_LS1043A
>@@ -584,6 +585,8 @@ config SYS_FSL_ERRATUM_A009660  config
>SYS_FSL_ERRATUM_A009929
> 	bool
>
>+config SYS_FSL_ERRATUM_A050382
>+	bool
>
> config SYS_FSL_HAS_RGMII
> 	bool
>diff --git a/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch3.h
>b/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch3.h
>index 0b36416ad3..4c9e1e72f0 100644
>--- a/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch3.h
>+++ b/arch/arm/include/asm/arch-fsl-layerscape/stream_id_lsch3.h
>@@ -105,7 +105,22 @@
> #define FSL_SEC_JR4_STREAM_ID		68
>
> #define FSL_SDMMC2_STREAM_ID		69
>+
>+/*
>+ * Erratum A050382 workaround
>+ *
>+ * Description:
>+ *   The eDMA ICID programmed in the eDMA_AMQR register in DCFG is not
>+ *   correctly forwarded to the SMMU.
>+ * Workaround:
>+ *   Program eDMA ICID in the eDMA_AMQR register in DCFG to 0x28.
Mention (decimal value:40) for better code readability
>+ */
>+#ifdef CONFIG_SYS_FSL_ERRATUM_A050382
>+#define FSL_EDMA_STREAM_ID		40
>+#else
> #define FSL_EDMA_STREAM_ID		70
>+#endif
>+
> #define FSL_GPU_STREAM_ID		71
> #define FSL_DISPLAY_STREAM_ID		72
> #define FSL_SATA3_STREAM_ID		73
>--
>2.17.1
>
--priyankajain