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- --- a/drivers/spi/Kconfig
- +++ b/drivers/spi/Kconfig
- @@ -171,6 +171,13 @@ config SPI_CLPS711X
- This enables dedicated general purpose SPI/Microwire1-compatible
- master mode interface (SSI1) for CLPS711X-based CPUs.
-
- +config SPI_CNS3XXX
- + tristate "CNS3XXX SPI controller"
- + depends on ARCH_CNS3XXX && SPI_MASTER
- + select SPI_BITBANG
- + help
- + This enables using the CNS3XXX SPI controller in master mode.
- +
- config SPI_COLDFIRE_QSPI
- tristate "Freescale Coldfire QSPI controller"
- depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
- --- a/drivers/spi/Makefile
- +++ b/drivers/spi/Makefile
- @@ -25,6 +25,7 @@ obj-$(CONFIG_SPI_BITBANG) += spi-bitban
- obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o
- obj-$(CONFIG_SPI_CADENCE) += spi-cadence.o
- obj-$(CONFIG_SPI_CLPS711X) += spi-clps711x.o
- +obj-$(CONFIG_SPI_CNS3XXX) += spi-cns3xxx.o
- obj-$(CONFIG_SPI_COLDFIRE_QSPI) += spi-coldfire-qspi.o
- obj-$(CONFIG_SPI_DAVINCI) += spi-davinci.o
- obj-$(CONFIG_SPI_DESIGNWARE) += spi-dw.o
- --- a/drivers/spi/spi-bitbang.c
- +++ b/drivers/spi/spi-bitbang.c
- @@ -335,6 +335,10 @@ static int spi_bitbang_transfer_one(stru
- */
- if (!m->is_dma_mapped)
- t->rx_dma = t->tx_dma = 0;
- +
- + t->last_in_message_list =
- + list_is_last(&t->transfer_list, &m->transfers);
- +
- status = bitbang->txrx_bufs(spi, t);
- }
- if (status > 0)
- --- a/include/linux/spi/spi.h
- +++ b/include/linux/spi/spi.h
- @@ -630,6 +630,13 @@ struct spi_transfer {
- u32 speed_hz;
-
- struct list_head transfer_list;
- +
- +#ifdef CONFIG_ARCH_CNS3XXX
- + unsigned last_in_message_list;
- +#ifdef CONFIG_SPI_CNS3XXX_2IOREAD
- + u8 dio_read;
- +#endif
- +#endif
- };
-
- /**
|
