1. 456dd7c dm: spi: Add soft_spi implementation by Simon Glass · Mon Oct 13 23:42:00 2014 -0600
  2. ec2a323 spi: Support half-duplex mode in FDT decode by Simon Glass · Mon Jul 07 10:16:39 2014 -0600
  3. c7befdd spi: Add device tree binding for SPI bus by Simon Glass · Tue Dec 03 16:43:25 2013 -0700