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| author | Fabio Estevam <festevam@gmail.com> | 2018-11-19 10:31:53 -0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-01-14 11:26:12 -0500 |
| commit | 29c2edb42bf3641943a48781ae101c513ede7a88 (patch) | |
| tree | be46d41fa2261213bb687769671ff6618282669c /Makefile | |
| parent | 789ee25de60f28cf4b40b394e4063e6857c861cd (diff) | |
| download | u-boot-29c2edb42bf3641943a48781ae101c513ede7a88.zip u-boot-29c2edb42bf3641943a48781ae101c513ede7a88.tar.gz u-boot-29c2edb42bf3641943a48781ae101c513ede7a88.tar.bz2 | |
mmc: fsl_esdhc: Avoid infinite loop in esdhc_send_cmd_common()
The following hang is observed on a Hummingboard 2 MicroSOM
i2eX iMX6D - rev 1.3 with no eMMC populated on board:
U-Boot SPL 2018.11+gf6206f8587 (Nov 16 2018 - 00:56:34 +0000)
Trying to boot from MMC1
U-Boot 2018.11+gf6206f8587 (Nov 16 2018 - 00:56:34 +0000)
CPU: Freescale i.MX6D rev1.5 996 MHz (running at 792 MHz)
CPU: Extended Commercial temperature grade (-20C to 105C) at 33C
Reset cause: POR
Board: MX6 HummingBoard2
DRAM: 1 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment
No panel detected: default to HDMI
Display: HDMI (1024x768)
In: serial
Out: serial
Err: serial
---> hangs
which is caused by the following infinite loop inside esdhc_send_cmd_common()
while (!(esdhc_read32(®s->irqstat) & flags))
;
Instead of looping forever, provide an exit path so that a timeout
error can be propagated in the case irqstat does not report
any interrupts, which may happen when no eMMC is populated on
board.
Reported-by: Ricardo Salveti <rsalveti@rsalveti.net>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Ricardo Salveti <rsalveti@rsalveti.net>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions