Source: Texas Instruments Inc.
Type: Bug-fix
Signed-off-by: Sudhakar Rajashekhara <[EMAIL PROTECTED]>
Description:
Fixes the UART mis-behavior on dm6467.
---
arch/arm/mach-davinci/serial.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index 8e041d3..e6ae903 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -72,6 +72,18 @@ static void __init davinci_serial_reset(struct
plat_serial8250_port *p)
davinci_serial_outs(p, UART_DAVINCI_PWREMU, pwremu);
}
+#define UART_DM6467_SCR __REG(DAVINCI_UART0_BASE + 0x40)
+/*
+ * Internal UARTs need to be initialized for the 8250 autoconfig to work
+ * properly. Note that the TX watermark initialization may not be needed
+ * once the 8250.c watermark handling code is merged.
+ */
+static int __init dm646x_serial_reset(void)
+{
+ UART_DM6467_SCR = 0x08;
+ return 0;
+}
+
void __init davinci_serial_init(struct platform_device *pdev)
{
int i;
@@ -111,3 +123,5 @@ void __init davinci_serial_init(struct platform_device
*pdev)
}
}
}
+
+late_initcall(dm646x_serial_reset);
--
1.5.4.1
_______________________________________________
Davinci-linux-open-source mailing list
[email protected]
http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
