On Mon, 2017-09-11 at 02:41 -0700, Bin Meng wrote: > This series does several bug fixes and clean ups against the intel-spi > spi-nor driver, as well as enhancements to make the driver independent > on the underlying BIOS/bootloader. > > At present the driver uses the HW sequencer for the read/write/erase on > all supported platforms, read_reg/write_reg for BXT, and the SW sequencer > for read_reg/write_reg for BYT/LPT. The way the driver uses the HW and SW > sequencer relies on some programmed register settings and hence creates > unneeded dependencies with the underlying BIOS/bootloader. For example, > the driver unfortunately does not work as expected when booting from > Intel Baytrail FSP based bootloaders like U-Boot, as the Baytrail FSP > does not set up some SPI controller settings to make the driver happy. > Now such limitation has been removed with this series.
Hi Bin Just starting to test these on Rangeley and got a question: We have two SPI flashes on CS0 resp. CS1 and the mtd driver seems to only map the first of those flashes. Is this intentional or are we missing something? Jocke > > Changes in v2: > - Add stable kernel tags in the commit message (patch [03/10]) > - Fix typo of 'operatoin' (patch [10/10]) > - Add Mika Westerberg's 'Acked-by' tag > > Bin Meng (10): > spi-nor: intel-spi: Fix number of protected range registers for > BYT/LPT > spi-nor: intel-spi: Remove useless 'buf' parameter in the HW/SW cycle > spi-nor: intel-spi: Fix broken software sequencing codes > spi-nor: intel-spi: Check transfer length in the HW/SW cycle > spi-nor: intel-spi: Use SW sequencer for BYT/LPT > spi-nor: intel-spi: Remove 'Atomic Cycle Sequence' in > intel_spi_write() > spi-nor: intel-spi: Don't assume OPMENU0/1 to be programmed by BIOS > spi-nor: intel-spi: Remove the unnecessary HSFSTS register RW > spi-nor: intel-spi: Rename swseq to swseq_reg in 'struct intel_spi' > spi-nor: intel-spi: Fall back to use SW sequencer to erase > > drivers/mtd/spi-nor/intel-spi.c | 209 > +++++++++++++++++++++++++++++----------- > 1 file changed, 151 insertions(+), 58 deletions(-) >
