On 6 April 2017 at 07:29, Stefan Roese sr@denx.de wrote:
This patch adds a remove function to the Intel ICH SPI driver, that will be called upon U-Boot exit, directly before the OS (Linux) is started. This function takes care of configuring the BIOS registers in the SPI controller (similar to what a "standard" BIOS or coreboot does), so that the Linux MTD device driver is able to correctly read/write to the SPI NOR chip. Without this, the chip is not detected at all.
Signed-off-by: Stefan Roese sr@denx.de Cc: Bin Meng bmeng.cn@gmail.com Cc: Simon Glass sjg@chromium.org Cc: Jagan Teki jteki@openedev.com
drivers/spi/ich.c | 18 ++++++++++++++++++ drivers/spi/ich.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 65 insertions(+), 7 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org