On Mon, Oct 7, 2013 at 10:46 AM, Sourav Poddar <sourav.pod...@ti.com> wrote: > Qspi controller can have a memory mapped port which can be used for > data read. Added support to enable memory mapped port read. > > This patch enables the following: > - It enables exchange of memory map address between mtd and qspi > through the introduction of "memory_map" flag. > - Add support to communicate to the driver that memory mapped > transfer is to be started through introduction of new flags like > "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". > > This will enable the spi controller to do memory mapped configurations > if required. > > Signed-off-by: Sourav Poddar <sourav.pod...@ti.com> > --- > v4->v5: > - Make memory map flag more readable by using "MMAP" > instead of "MEM_MAP" > - Correct the memory mapped exit path by adding > "MMAP_END" > - change the commit header to use sf. > drivers/mtd/spi/sf_ops.c | 2 ++ > drivers/mtd/spi/sf_probe.c | 1 + > include/spi.h | 3 +++ > 3 files changed, 6 insertions(+), 0 deletions(-) > > diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c > index c009af5..2396e22 100644 > --- a/drivers/mtd/spi/sf_ops.c > +++ b/drivers/mtd/spi/sf_ops.c > @@ -269,7 +269,9 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 > offset, > > /* Handle memory-mapped SPI */ > if (flash->memory_map) { > + spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP); > memcpy(data, flash->memory_map + offset, len); > + spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP_END); > return 0; > } > > diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c > index 1525636..6aa7086 100644 > --- a/drivers/mtd/spi/sf_probe.c > +++ b/drivers/mtd/spi/sf_probe.c > @@ -203,6 +203,7 @@ struct spi_flash *spi_flash_validate_params(struct > spi_slave *spi, u8 *idcode) > flash->page_size = (ext_jedec == 0x4d00) ? 512 : 256; > flash->sector_size = params->sector_size; > flash->size = flash->sector_size * params->nr_sectors; > + flash->memory_map = spi->memory_map; > > /* Compute erase sector and command */ > if (params->flags & SECT_4K) { > diff --git a/include/spi.h b/include/spi.h > index c44ebe8..f454cae 100644 > --- a/include/spi.h > +++ b/include/spi.h > @@ -27,6 +27,8 @@ > /* SPI transfer flags */ > #define SPI_XFER_BEGIN 0x01 /* Assert CS before transfer > */ > #define SPI_XFER_END 0x02 /* Deassert CS after transfer > */ > +#define SPI_XFER_MMAP 0x08 /* Memory Mapped start */ > +#define SPI_XFER_MMAP_END 0x10 /* Memory Mapped End */ Can you rearranged the code with tab space and comments are in same phase.
-- Thanks, Jagan. -------- Jagannadha Sutradharudu Teki, E: jagannadh.t...@gmail.com, P: +91-9676773388 Engineer - System Software Hacker U-boot - SPI Custodian and Zynq APSOC Ln: http://www.linkedin.com/in/jaganteki _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot