[U-Boot] [PATCH v4] armv8: Add workaround for USB erratum A-050106

[Priyanka Jain]

>-----Original Message-----
>From: Ran Wang <ran.wang_1 at nxp.com>
>Sent: Wednesday, November 13, 2019 11:20 AM
>To: Priyanka Jain <priyanka.jain at nxp.com>; Albert Aribaud
><albert.u.boot at aribaud.net>
>Cc: u-boot at lists.denx.de; Ran Wang <ran.wang_1 at nxp.com>
>Subject: [PATCH v4] armv8: Add workaround for USB erratum A-050106
>
>USB3.0 Receiver needs to enable fixed equalization for each of PHY instances in
>an SOC. This is similar to erratum A-009007, but this one is for LX2160A, and the
>register value is different.
>
>Signed-off-by: Ran Wang <ran.wang_1 at nxp.com>
>---
>Change in v4:
>	- Include defines of USB_PHY_RX_EQ_VAL_3 and
>USB_PHY_RX_EQ_VAL_4 for
>	  LS1028A to fix compile failure.
>
>Change in v3:
>	- Rebase patch for latest U-Boot (v2019.10)
>
>Change in v2:
>	- Move function erratum_a050106() under the scope of
>	  CONFIG_FSL_LSCH3 to avoid compilation warning of
>	  'defined but not used'.
>
> arch/arm/cpu/armv8/fsl-layerscape/Kconfig              |  4 ++++
> arch/arm/cpu/armv8/fsl-layerscape/soc.c                | 12 +++++++++++-
> arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h |  6 ++++++
> 3 files changed, 21 insertions(+), 1 deletion(-)
>
>diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>index f1578b1..c7f28b6 100644
>--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
>@@ -219,6 +219,7 @@ config ARCH_LX2160A
> 	select SYS_FSL_DDR_VER_50
> 	select SYS_FSL_EC1
> 	select SYS_FSL_EC2
>+	select SYS_FSL_ERRATUM_A050106
> 	select SYS_FSL_HAS_RGMII
> 	select SYS_FSL_HAS_SEC
> 	select SYS_FSL_HAS_CCN508
>@@ -348,6 +349,9 @@ config SYS_FSL_ERRATUM_A009008  config
>SYS_FSL_ERRATUM_A009798
> 	bool "Workaround for USB PHY erratum A009798"
>
>+config SYS_FSL_ERRATUM_A050106
>+	bool "Workaround for USB PHY erratum A050106"
>+
Please fix checkpatch warning
WARNING: please write a paragraph that describes the config symbol fully                                                        
#35: FILE: arch/arm/cpu/armv8/fsl-layerscape/Kconfig:352:
+config SYS_FSL_ERRATUM_A050106

total: 0 errors, 1 warnings, 0 checks, 60 lines checked

-priyankajain

<snip>