sun6i: Add new p2wi controller driver
The A31 uses a new push-pull two wire interface, which features higher
transfer speeds (upto 6 MHz) in theory. While the hardware can burst 8
bytes each time, this driver will only see very little use and thus is
limited to single byte transmission only.
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h
index 437dd35..c734cf0 100644
--- a/arch/arm/include/asm/arch-sunxi/gpio.h
+++ b/arch/arm/include/asm/arch-sunxi/gpio.h
@@ -172,6 +172,9 @@
#define SUN4I_GPI4_SDC3 2
+#define SUNXI_GPL0_R_P2WI_SCK 3
+#define SUNXI_GPL1_R_P2WI_SDA 3
+
#define SUN8I_GPL2_R_UART_TX 2
#define SUN8I_GPL3_R_UART_RX 2