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qemu/hw/ssi
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Bin Meng 8c495d1379 hw/ssi: imx_spi: Correct tx and rx fifo endianness 
The endianness of data exchange between tx and rx fifo is incorrect.
Earlier bytes are supposed to show up on MSB and later bytes on LSB,
ie: in big endian. The manual does not explicitly say this, but the
U-Boot and Linux driver codes have a swap on the data transferred
to tx fifo and from rx fifo.

With this change, U-Boot read from / write to SPI flash tests pass.

  => sf test 1ff000 1000
  SPI flash test:
  0 erase: 0 ticks, 4096000 KiB/s 32768.000 Mbps
  1 check: 3 ticks, 1333 KiB/s 10.664 Mbps
  2 write: 235 ticks, 17 KiB/s 0.136 Mbps
  3 read: 2 ticks, 2000 KiB/s 16.000 Mbps
  Test passed
  0 erase: 0 ticks, 4096000 KiB/s 32768.000 Mbps
  1 check: 3 ticks, 1333 KiB/s 10.664 Mbps
  2 write: 235 ticks, 17 KiB/s 0.136 Mbps
  3 read: 2 ticks, 2000 KiB/s 16.000 Mbps

Fixes: c906a3a015 ("i.MX: Add the Freescale SPI Controller")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210129132323.30946-11-bmeng.cn@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-02-02 17:00:55 +00:00
..
aspeed_smc.c hw/ssi/aspeed_smc: Rename 'max_slaves' variable as 'max_peripherals' 2020-12-10 12:15:03 -05:00
imx_spi.c hw/ssi: imx_spi: Correct tx and rx fifo endianness 2021-02-02 17:00:55 +00:00
Kconfig ssi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
meson.build hw/ssi: NPCM7xx Flash Interface Unit device model 2020-09-14 14:24:59 +01:00
mss-spi.c ssi: ssi_auto_connect_slaves() never does anything, drop 2020-06-15 22:05:28 +02:00
npcm7xx_fiu.c hw/*: Use type casting for SysBusDevice in NPCM7XX 2021-01-12 21:19:02 +00:00
omap_spi.c Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
pl022.c hw/ssi: Rename SSI 'slave' as 'peripheral' 2020-12-10 12:15:03 -05:00
ssi.c hw/ssi: Rename SSI 'slave' as 'peripheral' 2020-12-10 12:15:03 -05:00
stm32f2xx_spi.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
trace-events hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer 2020-10-08 15:24:32 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
xilinx_spi.c ssi: Fix bad printf format specifiers 2020-11-10 11:03:47 +00:00
xilinx_spips.c hw/core/stream: Rename StreamSlave as StreamSink 2020-12-10 12:15:04 -05:00