xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: debug: move 8250 debug include into arch/arm/include/debug/

Browse Source 
Now that the 8250 debug include can stand alone without requiring
platforms to provide any macros, move it into the debug directory
so it can be directly included.  This allows us to get rid of a lot
of debug-macros include files.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2013-07-07 00:11:35 +01:00
parent c3faa9b757
commit 2facbc8873
20 changed files with 3 additions and 212 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
arch/arm/include/debug/8250.S Normal file
View File

@@ -0,0 +1,36 @@
/*
* arch/arm/include/debug/8250.S
*
* Copyright (C) 1994-2013 Russell King
*
* 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.
*/
#include <linux/serial_reg.h>
.macro addruart, rp, rv, tmp
ldr \rp, =CONFIG_DEBUG_UART_PHYS
ldr \rv, =CONFIG_DEBUG_UART_VIRT
.endm
#define UART_SHIFT CONFIG_DEBUG_UART_8250_SHIFT
.macro senduart,rd,rx
strb \rd, [\rx, #UART_TX << UART_SHIFT]
.endm
.macro busyuart,rd,rx
1002: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT]
and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
bne 1002b
.endm
.macro waituart,rd,rx
#ifdef CONFIG_DEBUG_UART_8250_FLOW_CONTROL
1001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT]
tst \rd, #UART_MSR_CTS
beq 1001b
#endif
.endm