Bryant Ou has uploaded this change for review.

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drivers/uart: Override uart base address

Add CONFIG_UART_OVERRIDE_BASE_ADDR to select the function, platform
overrides the base address by providing a uart_platform_base routine.

Signed-off-by: Bryant Ou <Bryant.Ou.Q@gmail.com>
Change-Id: I2079bd1e5ffa209553383b6aafe3b8724849ba2a
---
M src/drivers/uart/Kconfig
M src/drivers/uart/uart8250io.c
2 files changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/45405/1

diff --git a/src/drivers/uart/Kconfig b/src/drivers/uart/Kconfig
index 41b870f..9cbb359 100644
--- a/src/drivers/uart/Kconfig
+++ b/src/drivers/uart/Kconfig
@@ -33,6 +33,13 @@
 	  Set to "y" when the platform overrides the uart_platform_refclk
 	  routine.
 
+config UART_OVERRIDE_BASE_ADDR
+	bool
+	default n
+	help
+	  Set to "y" when the platform overrides the base address by providing
+	  a uart_platform_base routine.
+
 config DRIVERS_UART_8250MEM
 	bool
 	default n
diff --git a/src/drivers/uart/uart8250io.c b/src/drivers/uart/uart8250io.c
index d0841de..c5317af 100644
--- a/src/drivers/uart/uart8250io.c
+++ b/src/drivers/uart/uart8250io.c
@@ -75,6 +75,7 @@
 	ENABLE_TRACE;
 }
 
+#if !CONFIG(UART_OVERRIDE_BASE_ADDR)
 static const unsigned int bases[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
 
 uintptr_t uart_platform_base(unsigned int idx)
@@ -83,6 +84,7 @@
 		return bases[idx];
 	return 0;
 }
+#endif
 
 void uart_init(unsigned int idx)
 {

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