[MIPS] Atlas: Remove support code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

8 files changed, 2 insertions, 512 deletions

diff --git a/arch/mips/mips-boards/atlas/Makefile b/arch/mips/mips-boards/atlas/Makefile
deleted file mode 100644
index f71c2dd1041a..000000000000
--- a/arch/mips/mips-boards/atlas/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
-#
-
-obj-y			:= atlas_int.o atlas_setup.o
-obj-$(CONFIG_KGDB)	+= atlas_gdb.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/atlas/atlas_gdb.c b/arch/mips/mips-boards/atlas/atlas_gdb.c
deleted file mode 100644
index 00c98cff62dc..000000000000
--- a/arch/mips/mips-boards/atlas/atlas_gdb.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- * This is the interface to the remote debugger stub.
- */
-#include <asm/io.h>
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/saa9730_uart.h>
-
-#define INB(a)     inb((unsigned long)a)
-#define OUTB(x, a)  outb(x, (unsigned long)a)
-
-/*
- * This is the interface to the remote debugger stub
- * if the Philips part is used for the debug port,
- * called from the platform setup code.
- */
-void *saa9730_base = (void *)ATLAS_SAA9730_REG;
-
-static int saa9730_kgdb_active = 0;
-
-#define SAA9730_BAUDCLOCK(baud) (((ATLAS_SAA9730_BAUDCLOCK/(baud))/16)-1)
-
-int saa9730_kgdb_hook(int speed)
-{
-	int baudclock;
-	t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-
-        /*
-         * Clear all interrupts
-         */
-	(void) INB(&kgdb_uart->Lsr);
-	(void) INB(&kgdb_uart->Msr);
-	(void) INB(&kgdb_uart->Thr_Rbr);
-	(void) INB(&kgdb_uart->Iir_Fcr);
-
-        /*
-         * Now, initialize the UART
-         */
-	/* 8 data bits, one stop bit, no parity */
-	OUTB(SAA9730_LCR_DATA8, &kgdb_uart->Lcr);
-
-	baudclock = SAA9730_BAUDCLOCK(speed);
-
-	OUTB((baudclock >> 16) & 0xff, &kgdb_uart->BaudDivMsb);
-	OUTB( baudclock        & 0xff, &kgdb_uart->BaudDivLsb);
-
-	/* Set RTS/DTR active */
-	OUTB(SAA9730_MCR_DTR | SAA9730_MCR_RTS, &kgdb_uart->Mcr);
-	saa9730_kgdb_active = 1;
-
-	return speed;
-}
-
-int saa9730_putDebugChar(char c)
-{
-	t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-
-        if (!saa9730_kgdb_active) {     /* need to init device first */
-                return 0;
-        }
-
-        while (!(INB(&kgdb_uart->Lsr) & SAA9730_LSR_THRE))
-                ;
-	OUTB(c, &kgdb_uart->Thr_Rbr);
-
-        return 1;
-}
-
-char saa9730_getDebugChar(void)
-{
-	t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-	char c;
-
-        if (!saa9730_kgdb_active) {     /* need to init device first */
-                return 0;
-        }
-        while (!(INB(&kgdb_uart->Lsr) & SAA9730_LSR_DR))
-                ;
-
-	c = INB(&kgdb_uart->Thr_Rbr);
-	return(c);
-}
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
deleted file mode 100644
index 6fb29c3ff62d..000000000000
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * Copyright (C) 1999, 2000, 2006  MIPS Technologies, Inc.
- *	All rights reserved.
- *	Authors: Carsten Langgaard <carstenl@mips.com>
- *		 Maciej W. Rozycki <macro@mips.com>
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- * ########################################################################
- *
- * Routines for generic manipulation of the interrupts found on the MIPS
- * Atlas board.
- *
- */
-#include <linux/compiler.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/kernel.h>
-
-#include <asm/gdb-stub.h>
-#include <asm/io.h>
-#include <asm/irq_cpu.h>
-#include <asm/msc01_ic.h>
-
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/atlasint.h>
-#include <asm/mips-boards/generic.h>
-
-static struct atlas_ictrl_regs *atlas_hw0_icregs;
-
-#if 0
-#define DEBUG_INT(x...) printk(x)
-#else
-#define DEBUG_INT(x...)
-#endif
-
-void disable_atlas_irq(unsigned int irq_nr)
-{
-	atlas_hw0_icregs->intrsten = 1 << (irq_nr - ATLAS_INT_BASE);
-	iob();
-}
-
-void enable_atlas_irq(unsigned int irq_nr)
-{
-	atlas_hw0_icregs->intseten = 1 << (irq_nr - ATLAS_INT_BASE);
-	iob();
-}
-
-static void end_atlas_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_atlas_irq(irq);
-}
-
-static struct irq_chip atlas_irq_type = {
-	.name = "Atlas",
-	.ack = disable_atlas_irq,
-	.mask = disable_atlas_irq,
-	.mask_ack = disable_atlas_irq,
-	.unmask = enable_atlas_irq,
-	.eoi = enable_atlas_irq,
-	.end = end_atlas_irq,
-};
-
-static inline int ls1bit32(unsigned int x)
-{
-	int b = 31, s;
-
-	s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
-	s =  8; if (x <<  8 == 0) s = 0; b -= s; x <<= s;
-	s =  4; if (x <<  4 == 0) s = 0; b -= s; x <<= s;
-	s =  2; if (x <<  2 == 0) s = 0; b -= s; x <<= s;
-	s =  1; if (x <<  1 == 0) s = 0; b -= s;
-
-	return b;
-}
-
-static inline void atlas_hw0_irqdispatch(void)
-{
-	unsigned long int_status;
-	int irq;
-
-	int_status = atlas_hw0_icregs->intstatus;
-
-	/* if int_status == 0, then the interrupt has already been cleared */
-	if (unlikely(int_status == 0))
-		return;
-
-	irq = ATLAS_INT_BASE + ls1bit32(int_status);
-
-	DEBUG_INT("atlas_hw0_irqdispatch: irq=%d\n", irq);
-
-	do_IRQ(irq);
-}
-
-static inline int clz(unsigned long x)
-{
-	__asm__(
-	"	.set	push					\n"
-	"	.set	mips32					\n"
-	"	clz	%0, %1					\n"
-	"	.set	pop					\n"
-	: "=r" (x)
-	: "r" (x));
-
-	return x;
-}
-
-/*
- * Version of ffs that only looks at bits 12..15.
- */
-static inline unsigned int irq_ffs(unsigned int pending)
-{
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-	return -clz(pending) + 31 - CAUSEB_IP;
-#else
-	unsigned int a0 = 7;
-	unsigned int t0;
-
-	t0 = s0 & 0xf000;
-	t0 = t0 < 1;
-	t0 = t0 << 2;
-	a0 = a0 - t0;
-	s0 = s0 << t0;
-
-	t0 = s0 & 0xc000;
-	t0 = t0 < 1;
-	t0 = t0 << 1;
-	a0 = a0 - t0;
-	s0 = s0 << t0;
-
-	t0 = s0 & 0x8000;
-	t0 = t0 < 1;
-	//t0 = t0 << 2;
-	a0 = a0 - t0;
-	//s0 = s0 << t0;
-
-	return a0;
-#endif
-}
-
-/*
- * IRQs on the Atlas board look basically like (all external interrupt
- * sources are combined together on hardware interrupt 0 (MIPS IRQ 2)):
- *
- *      MIPS IRQ        Source
- *      --------        ------
- *             0        Software 0 (reschedule IPI on MT)
- *             1        Software 1 (remote call IPI on MT)
- *             2        Combined Atlas hardware interrupt (hw0)
- *             3        Hardware (ignored)
- *             4        Hardware (ignored)
- *             5        Hardware (ignored)
- *             6        Hardware (ignored)
- *             7        R4k timer (what we use)
- *
- * We handle the IRQ according to _our_ priority which is:
- *
- * Highest ----     R4k Timer
- * Lowest  ----     Software 0
- *
- * then we just return, if multiple IRQs are pending then we will just take
- * another exception, big deal.
- */
-asmlinkage void plat_irq_dispatch(void)
-{
-	unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-	int irq;
-
-	irq = irq_ffs(pending);
-
-	if (irq == MIPSCPU_INT_ATLAS)
-		atlas_hw0_irqdispatch();
-	else if (irq >= 0)
-		do_IRQ(MIPS_CPU_IRQ_BASE + irq);
-	else
-		spurious_interrupt();
-}
-
-static inline void init_atlas_irqs(int base)
-{
-	int i;
-
-	atlas_hw0_icregs = (struct atlas_ictrl_regs *)
-			   ioremap(ATLAS_ICTRL_REGS_BASE,
-				   sizeof(struct atlas_ictrl_regs *));
-
-	/*
-	 * Mask out all interrupt by writing "1" to all bit position in
-	 * the interrupt reset reg.
-	 */
-	atlas_hw0_icregs->intrsten = 0xffffffff;
-
-	for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++)
-		set_irq_chip_and_handler(i, &atlas_irq_type, handle_level_irq);
-}
-
-static struct irqaction atlasirq = {
-	.handler = no_action,
-	.name = "Atlas cascade"
-};
-
-msc_irqmap_t __initdata msc_irqmap[] = {
-	{MSC01C_INT_TMR,		MSC01_IRQ_EDGE, 0},
-	{MSC01C_INT_PCI,		MSC01_IRQ_LEVEL, 0},
-};
-int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
-
-msc_irqmap_t __initdata msc_eicirqmap[] = {
-	{MSC01E_INT_SW0,		MSC01_IRQ_LEVEL, 0},
-	{MSC01E_INT_SW1,		MSC01_IRQ_LEVEL, 0},
-	{MSC01E_INT_ATLAS,		MSC01_IRQ_LEVEL, 0},
-	{MSC01E_INT_TMR,		MSC01_IRQ_EDGE, 0},
-	{MSC01E_INT_PCI,		MSC01_IRQ_LEVEL, 0},
-	{MSC01E_INT_PERFCTR,		MSC01_IRQ_LEVEL, 0},
-	{MSC01E_INT_CPUCTR,		MSC01_IRQ_LEVEL, 0}
-};
-int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
-
-void __init arch_init_irq(void)
-{
-	init_atlas_irqs(ATLAS_INT_BASE);
-
-	if (!cpu_has_veic)
-		mips_cpu_irq_init();
-
-	switch(mips_revision_corid) {
-	case MIPS_REVISION_CORID_CORE_MSC:
-	case MIPS_REVISION_CORID_CORE_FPGA2:
-	case MIPS_REVISION_CORID_CORE_FPGA3:
-	case MIPS_REVISION_CORID_CORE_FPGA4:
-	case MIPS_REVISION_CORID_CORE_24K:
-	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
-		if (cpu_has_veic)
-			init_msc_irqs(MSC01E_INT_BASE, MSC01E_INT_BASE,
-				      msc_eicirqmap, msc_nr_eicirqs);
-		else
-			init_msc_irqs(MSC01E_INT_BASE, MSC01C_INT_BASE,
-				      msc_irqmap, msc_nr_irqs);
-	}
-
-	if (cpu_has_veic) {
-		set_vi_handler(MSC01E_INT_ATLAS, atlas_hw0_irqdispatch);
-		setup_irq(MSC01E_INT_BASE + MSC01E_INT_ATLAS, &atlasirq);
-	} else if (cpu_has_vint) {
-		set_vi_handler(MIPSCPU_INT_ATLAS, atlas_hw0_irqdispatch);
-#ifdef CONFIG_MIPS_MT_SMTC
-		setup_irq_smtc(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS,
-			       &atlasirq, (0x100 << MIPSCPU_INT_ATLAS));
-#else /* Not SMTC */
-		setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
-#endif /* CONFIG_MIPS_MT_SMTC */
-	} else
-		setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
-}
diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c
deleted file mode 100644
index 5c500802271e..000000000000
--- a/arch/mips/mips-boards/atlas/atlas_setup.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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/init.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <linux/serial_8250.h>
-
-#include <asm/cpu.h>
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/mips-boards/generic.h>
-#include <asm/mips-boards/prom.h>
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/atlasint.h>
-#include <asm/time.h>
-#include <asm/traps.h>
-
-static void __init serial_init(void);
-
-const char *get_system_type(void)
-{
-	return "MIPS Atlas";
-}
-
-const char display_string[] = "        LINUX ON ATLAS       ";
-
-void __init plat_mem_setup(void)
-{
-	mips_pcibios_init();
-
-	ioport_resource.end = 0x7fffffff;
-
-	serial_init();
-
-#ifdef CONFIG_KGDB
-	kgdb_config();
-#endif
-	mips_reboot_setup();
-}
-
-static void __init serial_init(void)
-{
-#ifdef CONFIG_SERIAL_8250
-	struct uart_port s;
-
-	memset(&s, 0, sizeof(s));
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-	s.iobase = ATLAS_UART_REGS_BASE;
-#else
-	s.iobase = ATLAS_UART_REGS_BASE+3;
-#endif
-	s.irq = ATLAS_INT_UART;
-	s.uartclk = ATLAS_BASE_BAUD * 16;
-	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
-	s.iotype = UPIO_PORT;
-	s.regshift = 3;
-
-	if (early_serial_setup(&s) != 0) {
-		printk(KERN_ERR "Serial setup failed!\n");
-	}
-#endif
-}
diff --git a/arch/mips/mips-boards/generic/console.c b/arch/mips/mips-boards/generic/console.c
index 4d8ab99e4155..4a2aecc6da1b 100644
--- a/arch/mips/mips-boards/generic/console.c
+++ b/arch/mips/mips-boards/generic/console.c
@@ -22,16 +22,7 @@
 #include <linux/serial_reg.h>
 #include <asm/io.h>
 
-#ifdef CONFIG_MIPS_ATLAS
-#include <asm/mips-boards/atlas.h>
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-#define PORT(offset) (ATLAS_UART_REGS_BASE     + ((offset)<<3))
-#else
-#define PORT(offset) (ATLAS_UART_REGS_BASE + 3 + ((offset)<<3))
-#endif
-
-#elif defined(CONFIG_MIPS_SEAD)
+#if   defined(CONFIG_MIPS_SEAD)
 
 #include <asm/mips-boards/sead.h>
 
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 83b9dc739203..bac23b5fbf3f 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -197,14 +197,6 @@ void __init kgdb_config(void)
 			while ((c = *++argptr) && ('0' <= c && c <= '9'))
 				speed = speed * 10 + c - '0';
 		}
-#ifdef CONFIG_MIPS_ATLAS
-		if (line == 1) {
-			speed = saa9730_kgdb_hook(speed);
-			generic_putDebugChar = saa9730_putDebugChar;
-			generic_getDebugChar = saa9730_getDebugChar;
-		}
-		else
-#endif
 		{
 			speed = rs_kgdb_hook(line, speed);
 			generic_putDebugChar = rs_putDebugChar;
diff --git a/arch/mips/mips-boards/generic/reset.c b/arch/mips/mips-boards/generic/reset.c
index 583d468d98a9..5f73ff6180eb 100644
--- a/arch/mips/mips-boards/generic/reset.c
+++ b/arch/mips/mips-boards/generic/reset.c
@@ -27,15 +27,9 @@
 #include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/mips-boards/generic.h>
-#if defined(CONFIG_MIPS_ATLAS)
-#include <asm/mips-boards/atlas.h>
-#endif
 
 static void mips_machine_restart(char *command);
 static void mips_machine_halt(void);
-#if defined(CONFIG_MIPS_ATLAS)
-static void atlas_machine_power_off(void);
-#endif
 
 static void mips_machine_restart(char *command)
 {
@@ -53,22 +47,11 @@ static void mips_machine_halt(void)
 	__raw_writel(GORESET, softres_reg);
 }
 
-#if defined(CONFIG_MIPS_ATLAS)
-static void atlas_machine_power_off(void)
-{
-	unsigned int __iomem *psustby_reg = ioremap(ATLAS_PSUSTBY_REG, sizeof(unsigned int));
-
-	writew(ATLAS_GOSTBY, psustby_reg);
-}
-#endif
 
 void mips_reboot_setup(void)
 {
 	_machine_restart = mips_machine_restart;
 	_machine_halt = mips_machine_halt;
-#if defined(CONFIG_MIPS_ATLAS)
-	pm_power_off = atlas_machine_power_off;
-#endif
 #if defined(CONFIG_MIPS_MALTA) || defined(CONFIG_MIPS_SEAD)
 	pm_power_off = mips_machine_halt;
 #endif
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c
index fe2cac1b4514..d224267846b0 100644
--- a/arch/mips/mips-boards/generic/time.c
+++ b/arch/mips/mips-boards/generic/time.c
@@ -42,9 +42,6 @@
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/prom.h>
 
-#ifdef CONFIG_MIPS_ATLAS
-#include <asm/mips-boards/atlasint.h>
-#endif
 #ifdef CONFIG_MIPS_MALTA
 #include <asm/mips-boards/maltaint.h>
 #endif
@@ -89,7 +86,7 @@ static unsigned int __init estimate_cpu_frequency(void)
 	else
 		count = 6000000;
 #endif
-#if defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA)
+#ifdef CONFIG_MIPS_MALTA
 	unsigned long flags;
 	unsigned int start;