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ARM: pxa: move debug uart code

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Move debug uart code from mach-pxa/mach-mmp to debug directory.
Since they are similar, merge them together.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Eric Mico <eric.y.miao@gmail.com>
This commit is contained in:
Haojian Zhuang 2013-04-10 11:17:04 +08:00
parent 8cdde33866
commit 0a43cd3b1c
4 changed files with 42 additions and 53 deletions
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9
arch/arm/Kconfig.debug
View File

@ -312,6 +312,13 @@ choice
Say Y here if you want kernel low-level debugging support
on PicoXcell based platforms.
config DEBUG_PXA_UART1
depends on ARCH_PXA
bool "Use PXA UART1 for low-level debug"
help
Say Y here if you want kernel low-level debugging support
on PXA UART1.
config DEBUG_REALVIEW_STD_PORT
bool "RealView Default UART"
depends on ARCH_REALVIEW
@ -593,6 +600,8 @@ config DEBUG_LL_INCLUDE
default "debug/mvebu.S" if DEBUG_MVEBU_UART
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
DEBUG_MMP_UART3
default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \

33
arch/arm/include/debug/pxa.S Normal file
View File

@ -0,0 +1,33 @@
/*
* Early serial output macro for Marvell PXA/MMP SoC
*
* Copyright (C) 1994-1999 Russell King
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
*
* Copyright (C) 2013 Haojian Zhuang
*
* 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.
*/
#if defined(CONFIG_DEBUG_PXA_UART1)
#define PXA_UART_REG_PHYS_BASE 0x40100000
#define PXA_UART_REG_VIRT_BASE 0xf2100000
#elif defined(CONFIG_DEBUG_MMP_UART2)
#define PXA_UART_REG_PHYS_BASE 0xd4017000
#define PXA_UART_REG_VIRT_BASE 0xfe017000
#elif defined(CONFIG_DEBUG_MMP_UART3)
#define PXA_UART_REG_PHYS_BASE 0xd4018000
#define PXA_UART_REG_VIRT_BASE 0xfe018000
#else
#error "Select uart for DEBUG_LL"
#endif
.macro addruart, rp, rv, tmp
ldr \rp, =PXA_UART_REG_PHYS_BASE
ldr \rv, =PXA_UART_REG_VIRT_BASE
.endm
#define UART_SHIFT 2
#include <asm/hardware/debug-8250.S>

30
arch/arm/mach-mmp/include/mach/debug-macro.S
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@ -1,30 +0,0 @@
/* arch/arm/mach-mmp/include/mach/debug-macro.S
*
* Debugging macro include header
*
* Copied from arch/arm/mach-pxa/include/mach/debug.S
*
* 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.
*/
#if defined(CONFIG_DEBUG_MMP_UART2)
#define MMP_UART_OFFSET 0x00017000
#elif defined(CONFIG_DEBUG_MMP_UART3)
#define MMP_UART_OFFSET 0x00018000
#else
#error "Select uart for DEBUG_LL"
#endif
#include <mach/addr-map.h>
.macro addruart, rp, rv, tmp
ldr \rp, =APB_PHYS_BASE @ physical
ldr \rv, =APB_VIRT_BASE @ virtual
orr \rp, \rp, #MMP_UART_OFFSET
orr \rv, \rv, #MMP_UART_OFFSET
.endm
#define UART_SHIFT 2
#include <asm/hardware/debug-8250.S>

23
arch/arm/mach-pxa/include/mach/debug-macro.S
View File

@ -1,23 +0,0 @@
/* arch/arm/mach-pxa/include/mach/debug-macro.S
*
* Debugging macro include header
*
* Copyright (C) 1994-1999 Russell King
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
*
* 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 "hardware.h"
.macro addruart, rp, rv, tmp
mov \rp, #0x00100000
orr \rv, \rp, #io_p2v(0x40000000) @ virtual
orr \rp, \rp, #0x40000000 @ physical
.endm
#define UART_SHIFT 2
#include <asm/hardware/debug-8250.S>