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[MIPS] kgdb: Remove existing implementation

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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>
This commit is contained in:
Jason Wessel
2008-07-29 15:58:52 -05:00
committed by Ralf Baechle
parent 8f8da9adeb
commit 8d60a903d9
59 changed files with 4 additions and 3134 deletions
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1
arch/mips/basler/excite/Makefile
View File

@ -5,5 +5,4 @@
obj-$(CONFIG_BASLER_EXCITE) += excite_irq.o excite_prom.o excite_setup.o \
excite_device.o excite_procfs.o
obj-$(CONFIG_KGDB) += excite_dbg_io.o
obj-m += excite_iodev.o

121
arch/mips/basler/excite/excite_dbg_io.c
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@ -1,121 +0,0 @@
/*
* Copyright (C) 2004 by Basler Vision Technologies AG
* Author: Thomas Koeller <thomas.koeller@baslerweb.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/linkage.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/gdb-stub.h>
#include <asm/rm9k-ocd.h>
#include <excite.h>
#if defined(CONFIG_SERIAL_8250) && CONFIG_SERIAL_8250_NR_UARTS > 1
#error Debug port used by serial driver
#endif
#define UART_CLK 25000000
#define BASE_BAUD (UART_CLK / 16)
#define REGISTER_BASE_0 0x0208UL
#define REGISTER_BASE_1 0x0238UL
#define REGISTER_BASE_DBG REGISTER_BASE_1
#define CPRR 0x0004
#define UACFG 0x0200
#define UAINTS 0x0204
#define UARBR (REGISTER_BASE_DBG + 0x0000)
#define UATHR (REGISTER_BASE_DBG + 0x0004)
#define UADLL (REGISTER_BASE_DBG + 0x0008)
#define UAIER (REGISTER_BASE_DBG + 0x000c)
#define UADLH (REGISTER_BASE_DBG + 0x0010)
#define UAIIR (REGISTER_BASE_DBG + 0x0014)
#define UAFCR (REGISTER_BASE_DBG + 0x0018)
#define UALCR (REGISTER_BASE_DBG + 0x001c)
#define UAMCR (REGISTER_BASE_DBG + 0x0020)
#define UALSR (REGISTER_BASE_DBG + 0x0024)
#define UAMSR (REGISTER_BASE_DBG + 0x0028)
#define UASCR (REGISTER_BASE_DBG + 0x002c)
#define PARITY_NONE 0
#define PARITY_ODD 0x08
#define PARITY_EVEN 0x18
#define PARITY_MARK 0x28
#define PARITY_SPACE 0x38
#define DATA_5BIT 0x0
#define DATA_6BIT 0x1
#define DATA_7BIT 0x2
#define DATA_8BIT 0x3
#define STOP_1BIT 0x0
#define STOP_2BIT 0x4
#define BAUD_DBG 57600
#define PARITY_DBG PARITY_NONE
#define DATA_DBG DATA_8BIT
#define STOP_DBG STOP_1BIT
/* Initialize the serial port for KGDB debugging */
void __init excite_kgdb_init(void)
{
const u32 divisor = BASE_BAUD / BAUD_DBG;
/* Take the UART out of reset */
titan_writel(0x00ff1cff, CPRR);
titan_writel(0x00000000, UACFG);
titan_writel(0x00000002, UACFG);
titan_writel(0x0, UALCR);
titan_writel(0x0, UAIER);
/* Disable FIFOs */
titan_writel(0x00, UAFCR);
titan_writel(0x80, UALCR);
titan_writel(divisor & 0xff, UADLL);
titan_writel((divisor & 0xff00) >> 8, UADLH);
titan_writel(0x0, UALCR);
titan_writel(DATA_DBG | PARITY_DBG | STOP_DBG, UALCR);
/* Enable receiver interrupt */
titan_readl(UARBR);
titan_writel(0x1, UAIER);
}
int getDebugChar(void)
{
while (!(titan_readl(UALSR) & 0x1));
return titan_readl(UARBR);
}
int putDebugChar(int data)
{
while (!(titan_readl(UALSR) & 0x20));
titan_writel(data, UATHR);
return 1;
}
/* KGDB interrupt handler */
asmlinkage void excite_kgdb_inthdl(void)
{
if (unlikely(
((titan_readl(UAIIR) & 0x7) == 4)
&& ((titan_readl(UARBR) & 0xff) == 0x3)))
set_async_breakpoint(&regs->cp0_epc);
}

7
arch/mips/basler/excite/excite_irq.c
View File

@ -50,10 +50,6 @@ void __init arch_init_irq(void)
mips_cpu_irq_init();
rm7k_cpu_irq_init();
rm9k_cpu_irq_init();
#ifdef CONFIG_KGDB
excite_kgdb_init();
#endif
}
asmlinkage void plat_irq_dispatch(void)
@ -90,9 +86,6 @@ asmlinkage void plat_irq_dispatch(void)
msgint = msgintflags & msgintmask & (0x1 << (TITAN_MSGINT % 0x20));
if ((pending & (1 << TITAN_IRQ)) && msgint) {
ocd_writel(msgint, INTP0Clear0 + (TITAN_MSGINT / 0x20 * 0x10));
#if defined(CONFIG_KGDB)
excite_kgdb_inthdl();
#endif
do_IRQ(TITAN_IRQ);
return;
}

4
arch/mips/basler/excite/excite_setup.c
View File

@ -95,13 +95,13 @@ static int __init excite_init_console(void)
/* Take the DUART out of reset */
titan_writel(0x00ff1cff, CPRR);
#if defined(CONFIG_KGDB) || (CONFIG_SERIAL_8250_NR_UARTS > 1)
#if (CONFIG_SERIAL_8250_NR_UARTS > 1)
/* Enable both ports */
titan_writel(MASK_SER0 | MASK_SER1, UACFG);
#else
/* Enable port #0 only */
titan_writel(MASK_SER0, UACFG);
#endif /* defined(CONFIG_KGDB) */
#endif
/*
* Set up serial port #0. Do not use autodetection; the result is