arm: mach-snapdragon: gpio: introduce msm_special_pin_data
In order to help setup pin configuration for special pins (UFS, SDCard),
introduce the msm_special_pin_data struct largely inspired from the
Linux conterpart but with only U-Boot required fields.
This struct is added to the pins_data to allow specifying the special
pins data for each SoC.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
diff --git a/arch/arm/mach-snapdragon/include/mach/gpio.h b/arch/arm/mach-snapdragon/include/mach/gpio.h
index 53c6ae0..cc8f405 100644
--- a/arch/arm/mach-snapdragon/include/mach/gpio.h
+++ b/arch/arm/mach-snapdragon/include/mach/gpio.h
@@ -10,11 +10,25 @@
#include <asm/types.h>
#include <stdbool.h>
+struct msm_special_pin_data {
+ char *name;
+
+ u32 ctl_reg;
+ u32 io_reg;
+
+ unsigned pull_bit:5;
+ unsigned drv_bit:5;
+
+ unsigned oe_bit:5;
+ unsigned in_bit:5;
+ unsigned out_bit:5;
+};
+
struct msm_pin_data {
int pin_count;
const unsigned int *pin_offsets;
- /* Index of first special pin, these are ignored for now */
unsigned int special_pins_start;
+ const struct msm_special_pin_data *special_pins_data;
};
static inline u32 qcom_pin_offset(const unsigned int *offs, unsigned int selector)