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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-29 13:44:45 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-29 13:44:45 -0700
commit8d231c11fd0b694c447e59e687754b6999eea0a2 (patch)
treeb0b3c17efff7018bbf948e489f642c8079f33cc0 /arch/mips/gt64120
parent1f1332f727c3229eb2166a83fec5d3de6a73dce2 (diff)
parent8db089c6b5594c961fb6bc6d613b9926e0d3d98f (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (33 commits) [MIPS] Add missing backslashes to macro definitions. [MIPS] Death list of board support to be removed after 2.6.18. [MIPS] Remove BSD and Sys V compat data types. [MIPS] ioc3.h: Uses u8, so include <linux/types.h>. [MIPS] 74K: Assume it will also have an AR bit in config7 [MIPS] Treat CPUs with AR bit as physically indexed. [MIPS] Oprofile: Support VSMP on 34K. [MIPS] MIPS32/MIPS64 S-cache fix and cleanup [MIPS] excite: PCI makefile needs to use += if it wants a chance to work. [MIPS] excite: plat_setup -> plat_mem_setup. [MIPS] au1xxx: export dbdma functions [MIPS] au1xxx: dbdma, no sleeping under spin_lock [MIPS] au1xxx: fix PSC_SMBTXRX_RSR. [MIPS] Early printk for IP27. [MIPS] Fix handling of 0 length I & D caches. [MIPS] Typo fixes. [MIPS] MIPS32/MIPS64 secondary cache management [MIPS] Fix FIXADDR_TOP for TX39/TX49. [MIPS] Remove first timer interrupt setup in wrppmc_timer_setup() [MIPS] Fix configuration of R2 CPU features and multithreading. ...
Diffstat (limited to 'arch/mips/gt64120')
-rw-r--r--arch/mips/gt64120/common/Makefile1
-rw-r--r--arch/mips/gt64120/common/pci.c147
-rw-r--r--arch/mips/gt64120/momenco_ocelot/setup.c4
-rw-r--r--arch/mips/gt64120/wrppmc/Makefile2
-rw-r--r--arch/mips/gt64120/wrppmc/int-handler.S59
-rw-r--r--arch/mips/gt64120/wrppmc/irq.c20
-rw-r--r--arch/mips/gt64120/wrppmc/setup.c2
-rw-r--r--arch/mips/gt64120/wrppmc/time.c4
8 files changed, 17 insertions, 222 deletions
diff --git a/arch/mips/gt64120/common/Makefile b/arch/mips/gt64120/common/Makefile
index eba5051015a5..1ef676e22ab4 100644
--- a/arch/mips/gt64120/common/Makefile
+++ b/arch/mips/gt64120/common/Makefile
@@ -3,4 +3,3 @@
#
obj-y += time.o
-obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/mips/gt64120/common/pci.c b/arch/mips/gt64120/common/pci.c
deleted file mode 100644
index e9e5419a0d53..000000000000
--- a/arch/mips/gt64120/common/pci.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Galileo Evaluation Boards PCI support.
- *
- * The general-purpose functions to read/write and configure the GT64120A's
- * PCI registers (function names start with pci0 or pci1) are either direct
- * copies of functions written by Galileo Technology, or are modifications
- * of their functions to work with Linux 2.4 vs Linux 2.2. These functions
- * are Copyright - Galileo Technology.
- *
- * Other functions are derived from other MIPS PCI implementations, or were
- * written by RidgeRun, Inc, Copyright (C) 2000 RidgeRun, Inc.
- * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <asm/gt64120.h>
-
-#define SELF 0
-
-/*
- * pciXReadConfigReg - Read from a PCI configuration register
- * - Make sure the GT is configured as a master before
- * reading from another device on the PCI.
- * - The function takes care of Big/Little endian conversion.
- * INPUTS: regOffset: The register offset as it apears in the GT spec (or PCI
- * spec)
- * pciDevNum: The device number needs to be addressed.
- * RETURNS: data , if the data == 0xffffffff check the master abort bit in the
- * cause register to make sure the data is valid
- *
- * Configuration Address 0xCF8:
- *
- * 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
- * |congif|Reserved| Bus |Device|Function|Register|00|
- * |Enable| |Number|Number| Number | Number | | <=field Name
- *
- */
-static unsigned int pci0ReadConfigReg(int offset, struct pci_dev *device)
-{
- unsigned int DataForRegCf8;
- unsigned int data;
-
- DataForRegCf8 = ((PCI_SLOT(device->devfn) << 11) |
- (PCI_FUNC(device->devfn) << 8) |
- (offset & ~0x3)) | 0x80000000;
- GT_WRITE(GT_PCI0_CFGADDR_OFS, DataForRegCf8);
-
- /*
- * The casual observer might wonder why the READ is duplicated here,
- * rather than immediately following the WRITE, and just have the swap
- * in the "if". That's because there is a latency problem with trying
- * to read immediately after setting up the address register. The "if"
- * check gives enough time for the address to stabilize, so the READ
- * can work.
- */
- if (PCI_SLOT(device->devfn) == SELF) /* This board */
- return GT_READ(GT_PCI0_CFGDATA_OFS);
- else /* PCI is little endian so swap the Data. */
- return __GT_READ(GT_PCI0_CFGDATA_OFS);
-}
-
-/*
- * pciXWriteConfigReg - Write to a PCI configuration register
- * - Make sure the GT is configured as a master before
- * writingto another device on the PCI.
- * - The function takes care of Big/Little endian conversion.
- * Inputs: unsigned int regOffset: The register offset as it apears in the
- * GT spec
- * (or any other PCI device spec)
- * pciDevNum: The device number needs to be addressed.
- *
- * Configuration Address 0xCF8:
- *
- * 31 30 24 23 16 15 11 10 8 7 2 0 <=bit Number
- * |congif|Reserved| Bus |Device|Function|Register|00|
- * |Enable| |Number|Number| Number | Number | | <=field Name
- *
- */
-static void pci0WriteConfigReg(unsigned int offset,
- struct pci_dev *device, unsigned int data)
-{
- unsigned int DataForRegCf8;
-
- DataForRegCf8 = ((PCI_SLOT(device->devfn) << 11) |
- (PCI_FUNC(device->devfn) << 8) |
- (offset & ~0x3)) | 0x80000000;
- GT_WRITE(GT_PCI0_CFGADDR_OFS, DataForRegCf8);
-
- if (PCI_SLOT(device->devfn) == SELF) /* This board */
- GT_WRITE(GT_PCI0_CFGDATA_OFS, data);
- else /* configuration Transaction over the pci. */
- __GT_WRITE(GT_PCI0_CFGDATA_OFS, data);
-}
-
-extern struct pci_ops gt64120_pci_ops;
-
-void __init pcibios_init(void)
-{
- u32 tmp;
- struct pci_dev controller;
-
- controller.devfn = SELF;
-
- tmp = GT_READ(GT_PCI0_CMD_OFS); /* Huh??? -- Ralf */
- tmp = GT_READ(GT_PCI0_BARE_OFS);
-
- /*
- * You have to enable bus mastering to configure any other
- * card on the bus.
- */
- tmp = pci0ReadConfigReg(PCI_COMMAND, &controller);
- tmp |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SERR;
- pci0WriteConfigReg(PCI_COMMAND, &controller, tmp);
-
- /*
- * Reset PCI I/O and PCI MEM values to ones supported by EVM.
- */
- ioport_resource.start = GT_PCI_IO_BASE;
- ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
- iomem_resource.start = GT_PCI_MEM_BASE;
- iomem_resource.end = GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1;
-
- pci_scan_bus(0, &gt64120_pci_ops, NULL);
-}
diff --git a/arch/mips/gt64120/momenco_ocelot/setup.c b/arch/mips/gt64120/momenco_ocelot/setup.c
index 1193a22c4693..9804642ecf89 100644
--- a/arch/mips/gt64120/momenco_ocelot/setup.c
+++ b/arch/mips/gt64120/momenco_ocelot/setup.c
@@ -164,8 +164,8 @@ void __init plat_mem_setup(void)
pm_power_off = momenco_ocelot_power_off;
/*
- * initrd_start = (ulong)ocelot_initrd_start;
- * initrd_end = (ulong)ocelot_initrd_start + (ulong)ocelot_initrd_size;
+ * initrd_start = (unsigned long)ocelot_initrd_start;
+ * initrd_end = (unsigned long)ocelot_initrd_start + (ulong)ocelot_initrd_size;
* initrd_below_start_ok = 1;
*/
diff --git a/arch/mips/gt64120/wrppmc/Makefile b/arch/mips/gt64120/wrppmc/Makefile
index 72606b9af12a..7cf52205511c 100644
--- a/arch/mips/gt64120/wrppmc/Makefile
+++ b/arch/mips/gt64120/wrppmc/Makefile
@@ -9,6 +9,6 @@
# Makefile for the Wind River MIPS 4KC PPMC Eval Board
#
-obj-y += int-handler.o irq.o reset.o setup.o time.o pci.o
+obj-y += irq.o reset.o setup.o time.o pci.o
EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/gt64120/wrppmc/int-handler.S b/arch/mips/gt64120/wrppmc/int-handler.S
deleted file mode 100644
index edee7b394175..000000000000
--- a/arch/mips/gt64120/wrppmc/int-handler.S
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
- * Copyright (C) Wind River System Inc. Rongkai.Zhan <rongkai.zhan@windriver.com>
- */
-#include <asm/asm.h>
-#include <asm/mipsregs.h>
-#include <asm/addrspace.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-#include <asm/mach-wrppmc/mach-gt64120.h>
-
- .align 5
- .set noat
-NESTED(handle_IRQ, PT_SIZE, sp)
- SAVE_ALL
- CLI # Important: mark KERNEL mode !
- .set at
-
- mfc0 t0, CP0_CAUSE # get pending interrupts
- mfc0 t1, CP0_STATUS # get enabled interrupts
- and t0, t0, t1 # get allowed interrupts
- andi t0, t0, 0xFF00
- beqz t0, 1f
- move a1, sp # Prepare 'struct pt_regs *regs' pointer
-
- andi t1, t0, CAUSEF_IP7 # CPU Compare/Count internal timer
- bnez t1, handle_cputimer_irq
- andi t1, t0, CAUSEF_IP6 # UART 16550 port
- bnez t1, handle_uart_irq
- andi t1, t0, CAUSEF_IP3 # PCI INT_A
- bnez t1, handle_pci_intA_irq
-
- /* wrong alarm or masked ... */
-1: j spurious_interrupt
- nop
-END(handle_IRQ)
-
- .align 5
-handle_cputimer_irq:
- li a0, WRPPMC_MIPS_TIMER_IRQ
- jal do_IRQ
- j ret_from_irq
-
- .align 5
-handle_uart_irq:
- li a0, WRPPMC_UART16550_IRQ
- jal do_IRQ
- j ret_from_irq
-
- .align 5
-handle_pci_intA_irq:
- li a0, WRPPMC_PCI_INTA_IRQ
- jal do_IRQ
- j ret_from_irq
-
diff --git a/arch/mips/gt64120/wrppmc/irq.c b/arch/mips/gt64120/wrppmc/irq.c
index 8605687e24ed..8d75a43ce877 100644
--- a/arch/mips/gt64120/wrppmc/irq.c
+++ b/arch/mips/gt64120/wrppmc/irq.c
@@ -30,7 +30,19 @@
#include <asm/irq_cpu.h>
#include <asm/gt64120.h>
-extern asmlinkage void handle_IRQ(void);
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+ unsigned int pending = read_c0_status() & read_c0_cause();
+
+ if (pending & STATUSF_IP7)
+ do_IRQ(WRPPMC_MIPS_TIMER_IRQ, regs); /* CPU Compare/Count internal timer */
+ else if (pending & STATUSF_IP6)
+ do_IRQ(WRPPMC_UART16550_IRQ, regs); /* UART 16550 port */
+ else if (pending & STATUSF_IP3)
+ do_IRQ(WRPPMC_PCI_INTA_IRQ, regs); /* PCI INT_A */
+ else
+ spurious_interrupt(regs);
+}
/**
* Initialize GT64120 Interrupt Controller
@@ -50,12 +62,6 @@ void gt64120_init_pic(void)
void __init arch_init_irq(void)
{
- /* enable all CPU interrupt bits. */
- set_c0_status(ST0_IM); /* IE bit is still 0 */
-
- /* Install MIPS Interrupt Trap Vector */
- set_except_vector(0, handle_IRQ);
-
/* IRQ 0 - 7 are for MIPS common irq_cpu controller */
mips_cpu_irq_init(0);
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 20c591e49dae..2db6375ef29e 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -125,7 +125,7 @@ static void wrppmc_setup_serial(void)
}
#endif
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
{
extern void wrppmc_time_init(void);
extern void wrppmc_timer_setup(struct irqaction *);
diff --git a/arch/mips/gt64120/wrppmc/time.c b/arch/mips/gt64120/wrppmc/time.c
index 175d22adb450..6c24a82df0dd 100644
--- a/arch/mips/gt64120/wrppmc/time.c
+++ b/arch/mips/gt64120/wrppmc/time.c
@@ -31,10 +31,6 @@ void __init wrppmc_timer_setup(struct irqaction *irq)
{
/* Install ISR for timer interrupt */
setup_irq(WRPPMC_MIPS_TIMER_IRQ, irq);
-
- /* to generate the first timer interrupt */
- write_c0_compare(mips_hpt_frequency/HZ);
- write_c0_count(0);
}
/*