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Commit 8d60a903 authored by Jason Wessel's avatar Jason Wessel Committed by Ralf Baechle
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[MIPS] kgdb: Remove existing implementation 



This patch explicitly removes the kgdb implementation, for mips which
is intended to be followed by a patch that adds a kgdb implementation
for MIPS that makes use of the kgdb core in the kernel.

Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 8f8da9ad

arch/mips/Kconfig

+0 −6
Original line number Original line Diff line number Diff line
@@ -34,7 +34,6 @@ config BASLER_EXCITE 
	select SYS_HAS_CPU_RM9000

	select SYS_HAS_CPU_RM9000

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_KGDB

	help

	help

	  The eXcite is a smart camera platform manufactured by

	  The eXcite is a smart camera platform manufactured by

	  Basler Vision Technologies AG.

	  Basler Vision Technologies AG.
@@ -280,7 +279,6 @@ config PMC_MSP 
	select SYS_HAS_CPU_MIPS32_R2

	select SYS_HAS_CPU_MIPS32_R2

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_KGDB

	select IRQ_CPU

	select IRQ_CPU

	select SERIAL_8250

	select SERIAL_8250

	select SERIAL_8250_CONSOLE

	select SERIAL_8250_CONSOLE
@@ -306,7 +304,6 @@ config PMC_YOSEMITE 
	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_HIGHMEM

	select SYS_SUPPORTS_HIGHMEM

	select SYS_SUPPORTS_KGDB

	select SYS_SUPPORTS_SMP

	select SYS_SUPPORTS_SMP

	help

	help

	  Yosemite is an evaluation board for the RM9000x2 processor

	  Yosemite is an evaluation board for the RM9000x2 processor
@@ -359,7 +356,6 @@ config SGI_IP27 
	select SYS_HAS_CPU_R10000

	select SYS_HAS_CPU_R10000

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_KGDB

	select SYS_SUPPORTS_NUMA

	select SYS_SUPPORTS_NUMA

	select SYS_SUPPORTS_SMP

	select SYS_SUPPORTS_SMP

	select GENERIC_HARDIRQS_NO__DO_IRQ

	select GENERIC_HARDIRQS_NO__DO_IRQ
@@ -475,7 +471,6 @@ config SIBYTE_SWARM 
	select SYS_HAS_CPU_SB1

	select SYS_HAS_CPU_SB1

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_HIGHMEM

	select SYS_SUPPORTS_HIGHMEM

	select SYS_SUPPORTS_KGDB

	select SYS_SUPPORTS_LITTLE_ENDIAN

	select SYS_SUPPORTS_LITTLE_ENDIAN

	select ZONE_DMA32 if 64BIT

	select ZONE_DMA32 if 64BIT
@@ -868,7 +863,6 @@ config SOC_PNX8550 
	select SYS_HAS_EARLY_PRINTK

	select SYS_HAS_EARLY_PRINTK

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_32BIT_KERNEL

	select GENERIC_HARDIRQS_NO__DO_IRQ

	select GENERIC_HARDIRQS_NO__DO_IRQ

	select SYS_SUPPORTS_KGDB

	select GENERIC_GPIO

	select GENERIC_GPIO





config SWAP_IO_SPACE

config SWAP_IO_SPACE

arch/mips/Kconfig.debug

+0 −22
Original line number Original line Diff line number Diff line
@@ -34,28 +34,6 @@ config SMTC_IDLE_HOOK_DEBUG 
	  arch/mips/kernel/smtc.c.  This debugging option result in significant

	  arch/mips/kernel/smtc.c.  This debugging option result in significant

	  overhead so should be disabled in production kernels.

	  overhead so should be disabled in production kernels.





config KGDB

	bool "Remote GDB kernel debugging"

	depends on DEBUG_KERNEL && SYS_SUPPORTS_KGDB

	select DEBUG_INFO

	help

	  If you say Y here, it will be possible to remotely debug the MIPS

	  kernel using gdb. This enlarges your kernel image disk size by

	  several megabytes and requires a machine with more than 16 MB,

	  better 32 MB RAM to avoid excessive linking time. This is only

	  useful for kernel hackers. If unsure, say N.



config SYS_SUPPORTS_KGDB

	bool



config GDB_CONSOLE

	bool "Console output to GDB"

	depends on KGDB

	help

	  If you are using GDB for remote debugging over a serial port and

	  would like kernel messages to be formatted into GDB $O packets so

	  that GDB prints them as program output, say 'Y'.



config SB1XXX_CORELIS

config SB1XXX_CORELIS

	bool "Corelis Debugger"

	bool "Corelis Debugger"

	depends on SIBYTE_SB1xxx_SOC

	depends on SIBYTE_SB1xxx_SOC

arch/mips/au1000/Kconfig

+0 −1
Original line number Original line Diff line number Diff line
@@ -134,4 +134,3 @@ config SOC_AU1X00 
	select SYS_HAS_CPU_MIPS32_R1

	select SYS_HAS_CPU_MIPS32_R1

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_APM_EMULATION
 
	select SYS_SUPPORTS_APM_EMULATION
 
	select SYS_SUPPORTS_KGDB

arch/mips/au1000/common/Makefile

+0 −1
Original line number Original line Diff line number Diff line
@@ -9,7 +9,6 @@ obj-y += prom.o irq.o puts.o time.o reset.o \ 
	au1xxx_irqmap.o clocks.o platform.o power.o setup.o \

	au1xxx_irqmap.o clocks.o platform.o power.o setup.o \

	sleeper.o cputable.o dma.o dbdma.o gpio.o

	sleeper.o cputable.o dma.o dbdma.o gpio.o





obj-$(CONFIG_KGDB)		+= dbg_io.o

obj-$(CONFIG_PCI)		+= pci.o

obj-$(CONFIG_PCI)		+= pci.o





EXTRA_CFLAGS += -Werror
 
EXTRA_CFLAGS += -Werror

arch/mips/au1000/common/dbg_io.c

deleted100644 → 0
+0 −109
Original line number Original line Diff line number Diff line 
#include <linux/types.h>



#include <asm/mach-au1x00/au1000.h>



#ifdef CONFIG_KGDB



/*

 * FIXME the user should be able to select the

 * uart to be used for debugging.

 */

#define DEBUG_BASE  UART_DEBUG_BASE



#define         UART16550_BAUD_2400             2400

#define         UART16550_BAUD_4800             4800

#define         UART16550_BAUD_9600             9600

#define         UART16550_BAUD_19200            19200

#define         UART16550_BAUD_38400            38400

#define         UART16550_BAUD_57600            57600

#define         UART16550_BAUD_115200           115200



#define         UART16550_PARITY_NONE           0

#define         UART16550_PARITY_ODD            0x08

#define         UART16550_PARITY_EVEN           0x18

#define         UART16550_PARITY_MARK           0x28

#define         UART16550_PARITY_SPACE          0x38



#define         UART16550_DATA_5BIT             0x0

#define         UART16550_DATA_6BIT             0x1

#define         UART16550_DATA_7BIT             0x2

#define         UART16550_DATA_8BIT             0x3



#define         UART16550_STOP_1BIT             0x0

#define         UART16550_STOP_2BIT             0x4





#define UART_RX		0	/* Receive buffer */

#define UART_TX		4	/* Transmit buffer */

#define UART_IER	8	/* Interrupt Enable Register */

#define UART_IIR	0xC	/* Interrupt ID Register */

#define UART_FCR	0x10	/* FIFO Control Register */

#define UART_LCR	0x14	/* Line Control Register */

#define UART_MCR	0x18	/* Modem Control Register */

#define UART_LSR	0x1C	/* Line Status Register */

#define UART_MSR	0x20	/* Modem Status Register */

#define UART_CLK	0x28	/* Baud Rat4e Clock Divider */

#define UART_MOD_CNTRL	0x100	/* Module Control */



/* memory-mapped read/write of the port */

#define UART16550_READ(y)     (au_readl(DEBUG_BASE + y) & 0xff)

#define UART16550_WRITE(y, z) (au_writel(z & 0xff, DEBUG_BASE + y))



extern unsigned long calc_clock(void);



void debugInit(u32 baud, u8 data, u8 parity, u8 stop)

{

	if (UART16550_READ(UART_MOD_CNTRL) != 0x3)

		UART16550_WRITE(UART_MOD_CNTRL, 3);

	calc_clock();



	/* disable interrupts */

	UART16550_WRITE(UART_IER, 0);



	/* set up baud rate */

	{

		u32 divisor;



		/* set divisor */

		divisor = get_au1x00_uart_baud_base() / baud;

		UART16550_WRITE(UART_CLK, divisor & 0xffff);

	}



	/* set data format */

	UART16550_WRITE(UART_LCR, (data | parity | stop));

}



static int remoteDebugInitialized;



u8 getDebugChar(void)

{

	if (!remoteDebugInitialized) {

		remoteDebugInitialized = 1;

		debugInit(UART16550_BAUD_115200,

			  UART16550_DATA_8BIT,

			  UART16550_PARITY_NONE,

			  UART16550_STOP_1BIT);

	}



	while ((UART16550_READ(UART_LSR) & 0x1) == 0);

	return UART16550_READ(UART_RX);

}





int putDebugChar(u8 byte)

{

	if (!remoteDebugInitialized) {

		remoteDebugInitialized = 1;

		debugInit(UART16550_BAUD_115200,

			  UART16550_DATA_8BIT,

			  UART16550_PARITY_NONE,

			  UART16550_STOP_1BIT);

	}



	while ((UART16550_READ(UART_LSR) & 0x40) == 0);

	UART16550_WRITE(UART_TX, byte);



	return 1;

}



#endif