diff options
Diffstat (limited to 'target/linux/cns3xxx/patches-3.3/075-spi_support.patch')
| -rw-r--r-- | target/linux/cns3xxx/patches-3.3/075-spi_support.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/patches-3.3/075-spi_support.patch b/target/linux/cns3xxx/patches-3.3/075-spi_support.patch new file mode 100644 index 0000000..0434c52 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.3/075-spi_support.patch @@ -0,0 +1,41 @@ +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -117,6 +117,13 @@ config SPI_BUTTERFLY + inexpensive battery powered microcontroller evaluation board. + This same cable can be used to flash new firmware. + ++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 || M527x || M528x || M532x) +--- a/drivers/spi/Makefile ++++ b/drivers/spi/Makefile +@@ -18,6 +18,7 @@ obj-$(CONFIG_SPI_BFIN) += spi-bfin5xx. + obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o + obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o + obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.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 +@@ -330,6 +330,12 @@ static void bitbang_work(struct work_str + */ + if (!m->is_dma_mapped) + t->rx_dma = t->tx_dma = 0; ++ ++ if (t->transfer_list.next == &m->transfers) ++ t->last_in_message_list = 1; ++ else ++ t->last_in_message_list = 0; ++ + status = bitbang->txrx_bufs(spi, t); + } + if (status > 0) |