Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-11 21:52:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: debug: move davinci debug to generic 8250 code

Browse Source 
Davinci's debugging is just a copy of the old 8250_32 code with a
different base address.  Incorporate this into the generic 8250
debug code.

Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-07-07 16:18:34 +01:00
parent f2acf003cd
commit 97bd1a48ad
2 changed files with 15 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm/Kconfig.debug
View File

@ -119,6 +119,7 @@ choice
config DEBUG_DAVINCI_DA8XX_UART1
bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
depends on ARCH_DAVINCI_DA8XX
select DEBUG_UART_8250
help
Say Y here if you want the debug print routines to direct
their output to UART1 serial port on DaVinci DA8XX devices.
@ -126,6 +127,7 @@ choice
config DEBUG_DAVINCI_DA8XX_UART2
bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
depends on ARCH_DAVINCI_DA8XX
select DEBUG_UART_8250
help
Say Y here if you want the debug print routines to direct
their output to UART2 serial port on DaVinci DA8XX devices.
@ -133,6 +135,7 @@ choice
config DEBUG_DAVINCI_DMx_UART0
bool "Kernel low-level debugging on DaVinci DMx using UART0"
depends on ARCH_DAVINCI_DMx
select DEBUG_UART_8250
help
Say Y here if you want the debug print routines to direct
their output to UART0 serial port on DaVinci DMx devices.
@ -140,6 +143,7 @@ choice
config DEBUG_DAVINCI_TNETV107X_UART1
bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
depends on ARCH_DAVINCI_TNETV107X
select DEBUG_UART_8250
help
Say Y here if you want the debug print routines to direct
their output to UART1 serial port on DaVinci TNETV107X
@ -901,11 +905,15 @@ config DEBUG_UART_8250
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
default 0x01c28000 if DEBUG_SUNXI_UART0
default 0x01c28400 if DEBUG_SUNXI_UART1
default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
default 0x02530c00 if DEBUG_KEYSTONE_UART0
default 0x02531000 if DEBUG_KEYSTONE_UART1
default 0x03010fe0 if ARCH_RPC
default 0x08108300 if DEBUG_DAVINCI_TNETV107X_UART1
default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
DEBUG_VEXPRESS_UART0_CA9
default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
@ -982,9 +990,13 @@ config DEBUG_UART_VIRT
default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
default 0xfec02000 if DEBUG_SOCFPGA_UART
default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
default 0xfed12000 if ARCH_KIRKWOOD
default 0xfedc0000 if ARCH_EP93XX
default 0xfee003f8 if FOOTBRIDGE
default 0xfee08300 if DEBUG_DAVINCI_TNETV107X_UART1
default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
default 0xfee36000 if DEBUG_HIGHBANK_UART
default 0xfee82340 if ARCH_IOP13XX
@ -1007,7 +1019,9 @@ config DEBUG_UART_8250_WORD
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
depends on DEBUG_UART_8250_SHIFT >= 2
default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
ARCH_KEYSTONE
ARCH_KEYSTONE || \
DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1
config DEBUG_UART_8250_FLOW_CONTROL
bool "Enable flow control for 8250 UART"

65
arch/arm/mach-davinci/include/mach/debug-macro.S
View File

@ -1,65 +0,0 @@
/*
* Debugging macro for DaVinci
*
* Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
*
* 2007 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
/* Modifications
* Jan 2009 Chaithrika U S Added senduart, busyuart, waituart
* macros, based on debug-8250.S file
* but using 32-bit accesses required for
* some davinci devices.
*/
#include <linux/serial_reg.h>
#include <mach/serial.h>
#define UART_SHIFT 2
#if defined(CONFIG_DEBUG_DAVINCI_DMx_UART0)
#define UART_BASE DAVINCI_UART0_BASE
#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART1)
#define UART_BASE DA8XX_UART1_BASE
#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART2)
#define UART_BASE DA8XX_UART2_BASE
#elif defined(CONFIG_DEBUG_DAVINCI_TNETV107X_UART1)
#define UART_BASE TNETV107X_UART2_BASE
#define UART_VIRTBASE TNETV107X_UART2_VIRT
#else
#error "Select a specifc port for DEBUG_LL"
#endif
#ifndef UART_VIRTBASE
#define UART_VIRTBASE IO_ADDRESS(UART_BASE)
#endif
.macro addruart, rp, rv, tmp
ldr \rp, =UART_BASE
ldr \rv, =UART_VIRTBASE
.endm
.macro senduart,rd,rx
str \rd, [\rx, #UART_TX << UART_SHIFT]
.endm
.macro busyuart,rd,rx
1002: ldr \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 FLOW_CONTROL
1001: ldr \rd, [\rx, #UART_MSR << UART_SHIFT]
tst \rd, #UART_MSR_CTS
beq 1001b
#endif
.endm