On 2/22/22 1:38 PM, Sean Anderson wrote: > This erratum is reported to cause problems on these processors [1-3]. > The problem is usually with the clocking, which is supposed to be > configured by the RCW [4]. However, if it is not set, or if the default > clocking is not correct, then this erratum will cause an SError. > However, according to Ran Wang in [1]: > >> ... this erratum is used to pass USB compliance test only, you could >> disable this workaround on your board if you don't any USB issue on >> normal use case, I think it's fine. > > So just disable this erratum by default for these processors. > > [1] https://lore.kernel.org/all/761ddd61-05c1-d9b8-ac90-b8f425afd...@denx.de/ > [2] > https://community.nxp.com/t5/Layerscape/LS1046A-U-BOOT-HALT-AT-ERRATUM-A0090078/m-p/742993 > [3] > https://community.nxp.com/t5/QorIQ/Why-does-the-LS1043A-U-Boot-hang-at-code-that-fixes-erratum/m-p/644412 > [4] > https://source.codeaurora.org/external/qoriq/qoriq-components/rcw/tree/ls1046ardb/usb_phy_freq.rcw > > Signed-off-by: Sean Anderson <sean.ander...@seco.com> > --- > > arch/arm/cpu/armv7/ls102xa/Kconfig | 1 - > arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 2 -- > 2 files changed, 3 deletions(-) > > diff --git a/arch/arm/cpu/armv7/ls102xa/Kconfig > b/arch/arm/cpu/armv7/ls102xa/Kconfig > index 6a948d7ba7..cec93a27db 100644 > --- a/arch/arm/cpu/armv7/ls102xa/Kconfig > +++ b/arch/arm/cpu/armv7/ls102xa/Kconfig > @@ -7,7 +7,6 @@ config ARCH_LS1021A > select SYS_FSL_ERRATUM_A008407 > select SYS_FSL_ERRATUM_A008850 > select SYS_FSL_ERRATUM_A008997 if USB > - select SYS_FSL_ERRATUM_A009007 if USB > select SYS_FSL_ERRATUM_A009008 if USB > select SYS_FSL_ERRATUM_A009663 > select SYS_FSL_ERRATUM_A009798 if USB > diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > index 9bb870dcd8..f5a18053e6 100644 > --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > @@ -74,7 +74,6 @@ config ARCH_LS1043A > select SYS_FSL_DDR_VER_50 > select SYS_FSL_ERRATUM_A008850 if !TFABOOT > select SYS_FSL_ERRATUM_A008997 > - select SYS_FSL_ERRATUM_A009007 > select SYS_FSL_ERRATUM_A009008 > select SYS_FSL_ERRATUM_A009660 if !TFABOOT > select SYS_FSL_ERRATUM_A009663 if !TFABOOT > @@ -112,7 +111,6 @@ config ARCH_LS1046A > select SYS_FSL_ERRATUM_A008511 if !TFABOOT > select SYS_FSL_ERRATUM_A008850 if !TFABOOT > select SYS_FSL_ERRATUM_A008997 > - select SYS_FSL_ERRATUM_A009007 > select SYS_FSL_ERRATUM_A009008 > select SYS_FSL_ERRATUM_A009798 > select SYS_FSL_ERRATUM_A009801 >
ping? Can someone from NXP comment on this (either for or against)? --Sean
