[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: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 0 insertions, 111 deletions

diff --git a/arch/mips/au1000/Kconfig b/arch/mips/au1000/Kconfig
index 1fe97cccead1..e4a057d80ab6 100644
--- a/arch/mips/au1000/Kconfig
+++ b/arch/mips/au1000/Kconfig
@@ -134,4 +134,3 @@ config SOC_AU1X00
         select SYS_HAS_CPU_MIPS32_R1
         select SYS_SUPPORTS_32BIT_KERNEL
         select SYS_SUPPORTS_APM_EMULATION
-        select SYS_SUPPORTS_KGDB
diff --git a/arch/mips/au1000/common/Makefile b/arch/mips/au1000/common/Makefile
index dd0e19dacfcf..df48fd65bbf3 100644
--- a/arch/mips/au1000/common/Makefile
+++ b/arch/mips/au1000/common/Makefile
@@ -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 \
         sleeper.o cputable.o dma.o dbdma.o gpio.o
 
-obj-$(CONFIG_KGDB)              += dbg_io.o
 obj-$(CONFIG_PCI)               += pci.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/au1000/common/dbg_io.c b/arch/mips/au1000/common/dbg_io.c
deleted file mode 100644
index af5be7df2f2a..000000000000
--- a/arch/mips/au1000/common/dbg_io.c
+++ /dev/null
@@ -1,109 +0,0 @@
-#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