diff options
| author | Fabio Estevam <[email protected]> | 2017-11-03 13:40:09 -0200 |
|---|---|---|
| committer | Stefano Babic <[email protected]> | 2017-11-07 10:13:00 +0100 |
| commit | 5d09c27138bdbb459c2619c4788fe495b405622b (patch) | |
| tree | eaabc8801cb3b53ccbd5eab198a7c9eee90b3ec2 /include/debug_uart.h | |
| parent | 07df697e1410d990930b2c6e483e5123dd987fdd (diff) | |
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 <[email protected]>
Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Sebastien Bourdelin <[email protected]>
Acked-by: Otavio Salvador <[email protected]>
Tested-by: Otavio Salvador <[email protected]> # mx25pdk
Diffstat (limited to 'include/debug_uart.h')
0 files changed, 0 insertions, 0 deletions