MPC8641HPCN: Enable CONFIG_ADDR_MAP

[oweals/u-boot.git] / cpu / at32ap / pio.c

diff --git a/cpu/at32ap/pio.c b/cpu/at32ap/pio.c
index 9ba0b8ea8b26f189d1c39042908a7939dc570905..f64004b65913a2f299ca218257b109223ef446d2 100644 (file)
--- a/cpu/at32ap/pio.c
+++ b/cpu/at32ap/pio.c
@@ -58,3 +58,59 @@ void gpio_select_periph_B(unsigned int pin, int use_pullup)
        else
                pio2_writel(base, PUDR, mask);
 }
+
+void gpio_select_pio(unsigned int pin, unsigned long gpiof_flags)
+{
+       void *base = gpio_pin_to_addr(pin);
+       uint32_t mask = 1 << (pin & 0x1f);
+
+       if (!base)
+               panic("Invalid GPIO pin %u\n", pin);
+
+       if (gpiof_flags & GPIOF_OUTPUT) {
+               if (gpiof_flags & GPIOF_MULTIDRV)
+                       pio2_writel(base, MDER, mask);
+               else
+                       pio2_writel(base, MDDR, mask);
+               pio2_writel(base, PUDR, mask);
+               pio2_writel(base, OER, mask);
+       } else {
+               if (gpiof_flags & GPIOF_PULLUP)
+                       pio2_writel(base, PUER, mask);
+               else
+                       pio2_writel(base, PUDR, mask);
+               if (gpiof_flags & GPIOF_DEGLITCH)
+                       pio2_writel(base, IFER, mask);
+               else
+                       pio2_writel(base, IFDR, mask);
+               pio2_writel(base, ODR, mask);
+       }
+
+       pio2_writel(base, PER, mask);
+}
+
+void gpio_set_value(unsigned int pin, int value)
+{
+       void *base = gpio_pin_to_addr(pin);
+       uint32_t mask = 1 << (pin & 0x1f);
+
+       if (!base)
+               panic("Invalid GPIO pin %u\n", pin);
+
+       if (value)
+               pio2_writel(base, SODR, mask);
+       else
+               pio2_writel(base, CODR, mask);
+}
+
+int gpio_get_value(unsigned int pin)
+{
+       void *base = gpio_pin_to_addr(pin);
+       int value;
+
+       if (!base)
+               panic("Invalid GPIO pin %u\n", pin);
+
+       value = pio2_readl(base, PDSR);
+       return (value >> (pin & 0x1f)) & 1;
+}