add definition for usart base address

Signed-off-by: Bo Shen <voice.s...@atmel.com>
---
 arch/arm/mach-at91/include/mach/sama5d3.h |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/mach-at91/include/mach/sama5d3.h 
b/arch/arm/mach-at91/include/mach/sama5d3.h
index 6dc81ee..31096a8 100644
--- a/arch/arm/mach-at91/include/mach/sama5d3.h
+++ b/arch/arm/mach-at91/include/mach/sama5d3.h
@@ -65,6 +65,14 @@
 #define SAMA5D3_ID_IRQ0                47      /* Advanced Interrupt 
Controller (IRQ0) */
 
 /*
+ * User Peripheral physical base addresses.
+ */
+#define SAMA5D3_BASE_USART0    0xf001c000
+#define SAMA5D3_BASE_USART1    0xf0020000
+#define SAMA5D3_BASE_USART2    0xf8020000
+#define SAMA5D3_BASE_USART3    0xf8024000
+
+/*
  * Internal Memory
  */
 #define SAMA5D3_SRAM_BASE      0x00300000      /* Internal SRAM base address */
-- 
1.7.9.5

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