ARM: sunxi: Add support for using R_UART as console
The A23 only has UART0 muxed with MMC0. Some of the boards we
encountered expose R_UART as a set of pads.
Add support for R_UART so we can have a console while using mmc.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/arch/arm/include/asm/arch-sunxi/cpu.h b/arch/arm/include/asm/arch-sunxi/cpu.h
index 313e6c8..0de79a0 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu.h
@@ -111,6 +111,7 @@
#define SUNXI_AVG_BASE 0x01ea0000
#define SUNXI_PRCM_BASE 0x01f01400
+#define SUNXI_R_UART_BASE 0x01f02800
#define SUNXI_R_PIO_BASE 0x01f02c00
#define SUNXI_P2WI_BASE 0x01f03400
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h
index de7a86a..7bb6499 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 SUN8I_GPL2_R_UART_TX 2
+#define SUN8I_GPL3_R_UART_RX 2
+
/* GPIO pin pull-up/down config */
#define SUNXI_GPIO_PULL_DISABLE 0
#define SUNXI_GPIO_PULL_UP 1