summaryrefslogtreecommitdiff
path: root/drivers/spi/mxc_spi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/spi/mxc_spi.c')
-rw-r--r--drivers/spi/mxc_spi.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index e15a63c..802cd2e 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -23,6 +23,7 @@
#include <spi.h>
#include <asm/errno.h>
#include <asm/io.h>
+#include <mxc_gpio.h>
#ifdef CONFIG_MX27
/* i.MX27 has a completely wrong register layout and register definitions in the
@@ -68,9 +69,6 @@ static unsigned long spi_bases[] = {
0x53f84000,
};
-#define OUT MX31_GPIO_DIRECTION_OUT
-#define mxc_gpio_direction mx31_gpio_direction
-#define mxc_gpio_set mx31_gpio_set
#elif defined(CONFIG_MX51)
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
@@ -111,13 +109,12 @@ static unsigned long spi_bases[] = {
CSPI2_BASE_ADDR,
CSPI3_BASE_ADDR,
};
-#define mxc_gpio_direction(gpio, dir) (0)
-#define mxc_gpio_set(gpio, value) {}
-#define OUT 1
#else
#error "Unsupported architecture"
#endif
+#define OUT MXC_GPIO_DIRECTION_OUT
+
struct mxc_spi_slave {
struct spi_slave slave;
unsigned long base;
@@ -126,6 +123,7 @@ struct mxc_spi_slave {
u32 cfg_reg;
#endif
int gpio;
+ int ss_pol;
};
static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave)
@@ -147,7 +145,7 @@ void spi_cs_activate(struct spi_slave *slave)
{
struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
if (mxcs->gpio > 0)
- mxc_gpio_set(mxcs->gpio, mxcs->ctrl_reg & MXC_CSPICTRL_SSPOL);
+ mxc_gpio_set(mxcs->gpio, mxcs->ss_pol);
}
void spi_cs_deactivate(struct spi_slave *slave)
@@ -155,7 +153,7 @@ void spi_cs_deactivate(struct spi_slave *slave)
struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
if (mxcs->gpio > 0)
mxc_gpio_set(mxcs->gpio,
- !(mxcs->ctrl_reg & MXC_CSPICTRL_SSPOL));
+ !(mxcs->ss_pol));
}
#ifdef CONFIG_MX51
@@ -394,6 +392,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
mxcs->slave.bus = bus;
mxcs->slave.cs = cs;
mxcs->base = spi_bases[bus];
+ mxcs->ss_pol = (mode & SPI_CS_HIGH) ? 1 : 0;
#ifdef CONFIG_MX51
/* Can be used for i.MX31 too ? */