Hi Mark, Tony, Vignesh, Ping on this series V2. Can you please check the reworked patches? BR, Jean On Wed, Dec 11, 2019 at 8:40 PM Jean Pihet <jean.pihet@xxxxxxxxxxxxxx> wrote: > > v2 release. > > Large devices are bigger than >64MB in size. > > - Remove unused macro for fclk rate. > - Since the TI QSPI IP block only maps 64MB of MMIO, use MMIO > below the 64MB boundary and software generated transfers above. > - Optimize the software generated byte-transfers for dual and quad > I/O read operations. The speed-up is 4.9x for quad I/O reads. > > Note: depends on Tony's patches for hwmod cleanup, in order to get the > desired QSPI clk rate: > - [PATCH 1/2] ARM: dts: Configure interconnect target module for am4 qspi > - [PATCH 2/2] ARM: OMAP2+: Drop legacy platform data for am4 qspi > > Tested using raw accesses (mtd_debug) and JFFS2 FS read/write/erase; > in single, dual and quad modes. > All accesses have been checked on the logic analyzer. > > Jean Pihet (3): > spi: spi-ti-qspi: Remove unused macro for fclk frequency > spi: spi-ti-qspi: support large flash devices > spi: spi-ti-qspi: optimize byte-transfers > > drivers/spi/spi-ti-qspi.c | 84 ++++++++++++++++++++++++++++++++++++--- > 1 file changed, 79 insertions(+), 5 deletions(-) > > -- > 2.23.0 >
