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ar71xx: add serial driver for the AR933X UART 

SVN-Revision: 27065
lede-17.01
Gabor Juhos 2011-05-31 22:53:40 +00:00
parent c34e0cbc4c
commit b460bc6f12
4 changed files with 1361 additions and 0 deletions
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3
target/linux/ar71xx/config-2.6.37
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@ -173,6 +173,9 @@ CONFIG_RTL8366_SMI=y
# CONFIG_SCSI_DMA is not set # CONFIG_SCSI_DMA is not set
CONFIG_SERIAL_8250_NR_UARTS=1 CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_RUNTIME_UARTS=1 CONFIG_SERIAL_8250_RUNTIME_UARTS=1
CONFIG_SERIAL_AR933X=y
CONFIG_SERIAL_AR933X_CONSOLE=y
CONFIG_SERIAL_AR933X_NR_UARTS=2
# CONFIG_SLAB is not set # CONFIG_SLAB is not set
CONFIG_SLUB=y CONFIG_SLUB=y
CONFIG_SOC_AR71XX=y CONFIG_SOC_AR71XX=y

18
target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar933x_uart_platform.h Normal file
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@ -0,0 +1,18 @@
/*
* Platform data definition for Atheros AR933X UART
*
* Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#ifndef _AR933X_UART_PLATFORM_H
#define _AR933X_UART_PLATFORM_H
struct ar933x_uart_platform_data {
unsigned uartclk;
};
#endif /* _AR933X_UART_PLATFORM_H */

1282
target/linux/ar71xx/files/drivers/serial/ar933x_uart.c Normal file
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58
target/linux/ar71xx/patches-2.6.37/500-ar933x-uart-driver.patch Normal file
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@ -0,0 +1,58 @@
commit 24920fbc58c0183013db148f8be6fbc12d3bba9a
Author: Gabor Juhos <juhosg@openwrt.org>
Date: Sun Mar 27 12:04:36 2011 +0200
serial: add driver for the built-in UART of the AR933X SoC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1632,4 +1632,27 @@ config SERIAL_ALTERA_UART_CONSOLE
help
Enable a Altera UART port to be the system console.
+config SERIAL_AR933X
+ bool "AR933X serial port support"
+ depends on SOC_AR933X
+ select SERIAL_CORE
+ help
+ If you have an Atheros AR933X SOC based board and want to use the
+ built-in UART of the SoC, say Y to this option.
+
+config SERIAL_AR933X_CONSOLE
+ bool "Console on AR933X serial port"
+ depends on SERIAL_AR933X=y
+ select SERIAL_CORE_CONSOLE
+ help
+ Enable a built-in UART port of the AR933X to be the system console.
+
+config SERIAL_AR933X_NR_UARTS
+ int "Maximum number of AR933X serial ports"
+ depends on SERIAL_AR933X
+ default "2"
+ help
+ Set this to the number of serial ports you want the driver
+ to support.
+
endmenu
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -89,3 +89,5 @@ obj-$(CONFIG_SERIAL_ALTERA_UART) += alte
obj-$(CONFIG_SERIAL_MRST_MAX3110) += mrst_max3110.o
obj-$(CONFIG_SERIAL_MFD_HSU) += mfd.o
obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o
+obj-$(CONFIG_SERIAL_AR933X) += ar933x_uart.o
+
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -199,6 +199,9 @@
/* TI OMAP-UART */
#define PORT_OMAP 96
+/* Atheros AR933X SoC */
+#define PORT_AR933X 98
+
#ifdef __KERNEL__
#include <linux/compiler.h>