Fabio Estevam 5d09c27138 mx25: Select the ESDHC_A001 erratum ... When a high speed card is connected to mx25 the following error is seen: U-Boot 2017.11-rc2-00104-gb79372a (Oct 31 2017 - 11:02:22 -0200) CPU: Freescale i.MX25 rev1.2 at 399 MHz Reset cause: POR Board: MX25PDK I2C: ready DRAM: 64 MiB No arch specific invalidate_icache_all available! MMC: FSL_SDHC: 0 *** 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 , which prevents any usage of the SD card. 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.MX25 errata document, I have confirmed with the NXP design team that this erratum does affect i.MX25, so fix the problem by selecting SYS_FSL_ERRATUM_ESDHC_A001 at SoC level. Successfully tested with a high speed SD card on a mx25pdk board. Suggested-by: Benoît Thébaudeau <benoit@wsystem.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Acked-by: Otavio Salvador <otavio@ossystems.com.br> Tested-by: Otavio Salvador <otavio@ossystems.com.br> # mx25pdk		2017-11-07 10:13:00 +01:00
..
arc	arc: Use asm-generic/io.h	2017-10-02 21:52:20 -04:00
arm	mx25: Select the ESDHC_A001 erratum	2017-11-07 10:13:00 +01:00
m68k	m68k: Use asm-generic/io.h	2017-10-02 21:52:20 -04:00
microblaze	microblaze: Use asm-generic/io.h	2017-10-02 21:52:21 -04:00
mips	mips: Use asm-generic/io.h	2017-10-02 21:52:23 -04:00
nds32	nds32: Use asm-generic/io.h	2017-10-02 21:52:21 -04:00
nios2	nios2: Use asm-generic/io.h	2017-10-02 21:52:23 -04:00
powerpc	powerpc: mpc85xx: Implement CPU erratum A-007907 for secondary cores	2017-10-23 14:02:48 -07:00
sandbox	sandbox: avoid memory leak in os_dirent_ls	2017-10-08 20:41:09 -06:00
sh	sh: Use asm-generic/io.h	2017-10-02 21:52:21 -04:00
x86	x86: acpi: Put sleepstates.asl to the common place	2017-10-27 15:13:47 +08:00
xtensa	xtensa: Use asm-generic/io.h	2017-10-02 21:52:22 -04:00
.gitignore
Kconfig