[#7199] uboot fails to detect two spi flash chip concurrently
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Submitted By: Mingquan Pan
Open Date
2012-07-11 16:38:27
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uboot fails to detect two spi flash chip concurrently.
With the add-on board on, uboot can only detect the add-on spi flash by command :sf probe 4, but it fails to sf probe 1, the original spi flash.
U-Boot 2011.09-dirty (ADI-2012R1) (Jul 06 2012 - 20:18:57), Build: jenkins-label=UBOOT_BF609-EZKIT-172
CPU: ADSP bf609-0.0 (Detected Rev: 0.0) (parallel flash boot)
Board: ADI BF609 EZ-Kit board
Support: http://blackfin.uclinux.org/
Clock: VCO: 25 MHz, Core: 500 MHz, System0: 100 MHz, System1: 100 MHz, Dclk: 250 MHz
RAM: 128 MiB
Flash: 16 MiB
MMC: Blackfin SDH: 0
In: serial
Out: serial
Err: serial
other init
Net: mii0
Hit any key to stop autoboot: 0
bfin> sf probe 1
SF: Unsupported manufacturer ef
Failed to initialize SPI flash at 0:1
bfin> sf probe 4
SF: Detected M25P64 with page size 64 KiB, total 8 MiB
Follow-ups
--- Sonic Zhang 2012-07-18 19:43:24
SPI signal is bad if too much peripherals are attached to the same conversion
board. Do the test on the other board.
