gpio: mpc8xxx: Make compatible with more SoCs
Finally, make the mpc8xxx driver capable of handling more GPIO devices;
this entails adding a special case for the MPC5121 SoC, and adding a set
of new compatible strings.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/drivers/gpio/mpc8xxx_gpio.c b/drivers/gpio/mpc8xxx_gpio.c
index e4ebbc1..0aa72ec 100644
--- a/drivers/gpio/mpc8xxx_gpio.c
+++ b/drivers/gpio/mpc8xxx_gpio.c
@@ -11,8 +11,8 @@
#include <common.h>
#include <dm.h>
-#include <asm/gpio.h>
#include <mapmem.h>
+#include <asm/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -37,8 +37,14 @@
* for output pins
*/
u32 dat_shadow;
+ ulong type;
};
+enum {
+ MPC8XXX_GPIO_TYPE,
+ MPC5121_GPIO_TYPE,
+};
+
inline u32 gpio_mask(uint gpio)
{
return (1U << (31 - (gpio)));
@@ -119,6 +125,12 @@
static int mpc8xxx_gpio_direction_output(struct udevice *dev, uint gpio,
int value)
{
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
+
+ /* GPIO 28..31 are input only on MPC5121 */
+ if (data->type == MPC5121_GPIO_TYPE && gpio >= 28)
+ return -EINVAL;
+
return mpc8xxx_gpio_set_value(dev, gpio, value);
}
@@ -188,6 +200,7 @@
struct mpc8xxx_gpio_data *priv = dev_get_priv(dev);
struct mpc8xxx_gpio_plat *plat = dev_get_platdata(dev);
unsigned long size = plat->size;
+ ulong driver_data = dev_get_driver_data(dev);
if (size == 0)
size = 0x100;
@@ -237,7 +250,13 @@
};
static const struct udevice_id mpc8xxx_gpio_ids[] = {
- { .compatible = "fsl,pq3-gpio" },
+ { .compatible = "fsl,pq3-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8308-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8349-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8572-gpio", .data = MPC8XXX_GPIO_TYPE},
+ { .compatible = "fsl,mpc8610-gpio", .data = MPC8XXX_GPIO_TYPE},
+ { .compatible = "fsl,mpc5121-gpio", .data = MPC5121_GPIO_TYPE, },
+ { .compatible = "fsl,qoriq-gpio", .data = MPC8XXX_GPIO_TYPE },
{ /* sentinel */ }
};