spi/imx: add support for imx51's eCSPI and CSPI
i.MX51 comes with two eCSPI interfaces (that are quite different from
what was known before---the tried and tested Freescale way) and a CSPI
interface that is identical to the devices found on i.MX25 and i.MX35.
This patch is a merge of two very similar patches (by Jason Wang and Sascha
Hauer resp.) plus a (now hopefully correct) reimplementation of the
clock calculation.
Acked-by: Jason Wang <jason77.wang@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 4e9d77b..7e631fa 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -153,7 +153,10 @@
def_bool y if ARCH_MX31
config SPI_IMX_VER_0_7
- def_bool y if ARCH_MX25 || ARCH_MX35
+ def_bool y if ARCH_MX25 || ARCH_MX35 || ARCH_MX51
+
+config SPI_IMX_VER_2_3
+ def_bool y if ARCH_MX51
config SPI_IMX
tristate "Freescale i.MX SPI controllers"