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| author | Sean Anderson <sean.anderson@seco.com> | 2022-04-22 14:01:36 +0530 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2022-04-26 17:12:32 +0530 |
| commit | 881284b36a3785328ac611bab4aedd9a2a8563e6 (patch) | |
| tree | 5f8c83df256ed437f7ac79e374bed97683562e57 /arch/arm/cpu/armv8 | |
| parent | 9c18c695f820198c37aad812ce82e6a78195051e (diff) | |
| download | u-boot-881284b36a3785328ac611bab4aedd9a2a8563e6.zip u-boot-881284b36a3785328ac611bab4aedd9a2a8563e6.tar.gz u-boot-881284b36a3785328ac611bab4aedd9a2a8563e6.tar.bz2 | |
arm: layerscape: Disable erratum A009007 on LS1021A, LS1043A, and LS1046A
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-b8f425afde6c@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.anderson@seco.com>
Acked-by: Ran Wang <ran.wang_1@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'arch/arm/cpu/armv8')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 5ea99c4..dd95380 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 |