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b2e6ad451b
When a high speed card is connected to mx51evk the following error is seen: U-Boot 2017.11-rc2 (Oct 18 2017 - 13:49:26 -0200) CPU: Freescale i.MX51 rev3.0 at 800 MHz Reset cause: POR Board: MX51EVK DRAM: 512 MiB MMC: FSL_SDHC: 0, FSL_SDHC: 1 *** Warning - read failed, using default environment In: serial Out: serial Err: serial Net: FEC Hit any key to stop autoboot: 0 => saveenv Saving Environment to MMC... Writing to MMC(0)... failed The root cause for the failure is the eSDHC-A001 erratum: "eSDHC-A001 : Data timeout counter (SYSCTL[DTOCV]) is not reliable for values of 0x4,0x8, and 0xC" that is listed on some PowerArchitecture chips: https://www.nxp.com/files-static/32bit/doc/errata/MPC8379ECE.pdf Even though eSDHC-A001 is not documented on the i.MX51 errata document, I have confirmed with the NXP design team that this erratum does affect i.MX51, so fix the problem by selecting SYS_FSL_ERRATUM_ESDHC_A001 at SoC level. The i.MX51 ts4800 board already selects this option, but it is better to move this selection to the i.MX51 SoC level instead. Successfully tested with a high speed SD card on a mx51evk board. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
77 lines
1.2 KiB
Plaintext
77 lines
1.2 KiB
Plaintext
if ARCH_MX5
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config MX5
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bool
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default y
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config MX51
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bool
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select SYS_FSL_ERRATUM_ESDHC_A001
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config MX53
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bool
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choice
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prompt "MX5 board select"
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optional
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config TARGET_M53EVK
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bool "Support m53evk"
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select MX53
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select SUPPORT_SPL
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config TARGET_MX51EVK
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bool "Support mx51evk"
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select BOARD_LATE_INIT
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select MX51
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config TARGET_MX53ARD
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bool "Support mx53ard"
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select MX53
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config TARGET_MX53CX9020
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bool "Support CX9020"
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select BOARD_LATE_INIT
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select MX53
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select DM
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select DM_SERIAL
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config TARGET_MX53EVK
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bool "Support mx53evk"
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select BOARD_LATE_INIT
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select MX53
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config TARGET_MX53LOCO
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bool "Support mx53loco"
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select BOARD_LATE_INIT
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select MX53
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config TARGET_MX53SMD
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bool "Support mx53smd"
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select MX53
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config TARGET_TS4800
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bool "Support TS4800"
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select MX51
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config TARGET_USBARMORY
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bool "Support USB armory"
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select MX53
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endchoice
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config SYS_SOC
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default "mx5"
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source "board/aries/m53evk/Kconfig"
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source "board/beckhoff/mx53cx9020/Kconfig"
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source "board/freescale/mx51evk/Kconfig"
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source "board/freescale/mx53ard/Kconfig"
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source "board/freescale/mx53evk/Kconfig"
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source "board/freescale/mx53loco/Kconfig"
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source "board/freescale/mx53smd/Kconfig"
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source "board/inversepath/usbarmory/Kconfig"
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source "board/technologic/ts4800/Kconfig"
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endif
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