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i2c: imx: add macros to setup pads for multiple SoC types

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Add macro which defines i2c_pads_info structs for multiple SoC types,
and a macro which selects the appropriate struct based on CPU type,
thus eliminating the need to manage multiple i2c pad configurations
manually when supporting multiple SoC types.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
This commit is contained in:
Nikita Kiryanov 2014-08-20 15:08:54 +03:00 committed by Stefano Babic
parent dc383dd583
commit c6c2492ad8
1 changed files with 33 additions and 0 deletions
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33
arch/arm/include/asm/imx-common/mxc_i2c.h
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@ -19,6 +19,39 @@ struct i2c_pads_info {
struct i2c_pin_ctrl sda;
};
#if defined(CONFIG_MX6QDL)
#define I2C_PADS(name, scl_i2c, scl_gpio, scl_gp, sda_i2c, sda_gpio, sda_gp) \
struct i2c_pads_info mx6q_##name = { \
.scl = { \
.i2c_mode = MX6Q_##scl_i2c, \
.gpio_mode = MX6Q_##scl_gpio, \
.gp = scl_gp, \
}, \
.sda = { \
.i2c_mode = MX6Q_##sda_i2c, \
.gpio_mode = MX6Q_##sda_gpio, \
.gp = sda_gp, \
} \
}; \
struct i2c_pads_info mx6s_##name = { \
.scl = { \
.i2c_mode = MX6DL_##scl_i2c, \
.gpio_mode = MX6DL_##scl_gpio, \
.gp = scl_gp, \
}, \
.sda = { \
.i2c_mode = MX6DL_##sda_i2c, \
.gpio_mode = MX6DL_##sda_gpio, \
.gp = sda_gp, \
} \
};
#define I2C_PADS_INFO(name) \
(is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) ? \
&mx6q_##name : &mx6s_##name
#endif
void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
struct i2c_pads_info *p);
void bus_i2c_init(void *base, int speed, int slave_addr,