Wei-Han Chen 9a7e82bac8 stm32: make half-duplex SPI works on STM32F0 ...

According to RM0091, steps for using DMA for SPI peripheral should be:

1. enable DMA RX / TX
2. enable SPI
3. wait for DMA to complete
4. disable DMA RX / TX
5. disable SPI

BUG=b:70482333
TEST=tested on reworked staff (half-duplex)
TEST=tested elm (full-duplex)

Change-Id: I095409195cd1e0379995f0bfa6605c2e1a0dfd3c
Reviewed-on: https://chromium-review.googlesource.com/853715
Commit-Ready: Wei-Han Chen <stimim@chromium.org>
Tested-by: Wei-Han Chen <stimim@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>

2018-01-25 00:15:48 -08:00

..

g

g: fix flaky timeout check for spi transfer.

2018-01-04 14:35:21 -08:00

host

chip/host: uart: Run uart_monitor_stdin() before task scheduling

2018-01-10 18:20:01 -08:00

ish

ish i2c: use i2c_ports[] to set bus speed

2017-12-13 00:32:23 -08:00

it83xx

it83xx: espi: workaround for changing PLL

2017-12-12 22:00:36 -08:00

lm4

host_events: Bump up host events and masks to 64-bit

2017-11-21 18:53:35 -08:00

mchp

ec_chip_mchp: Add chip flash image generator

2018-01-10 15:44:52 -08:00

mec1322

system: Allow hibernate to clear AP_OFF flag

2017-12-05 18:00:38 -08:00

npcx

npcx7: Add definition/configuration for npcx7m6xb/npcx7m7w

2018-01-17 23:37:27 -08:00

nrf51

cleanup: Remove jtag_pre_init()

2017-09-07 15:01:05 -07:00

stm32

stm32: make half-duplex SPI works on STM32F0

2018-01-25 00:15:48 -08:00