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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 08:52:50 +1100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 08:52:50 +1100
commite189f3495c4e30fc84fc9241096edf3932e23439 (patch)
tree5916c89ace81537a02ae01869386ba6caafdab9c /arch/sh/kernel
parentf4798748dee00c807a63f5518f08b3df161e0f6d (diff)
parent6582d7b7376aa587d74b08c74457dc28abc1a9fa (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (197 commits) sh: add spi header and r2d platform data V3 sh: update r7780rp interrupt code sh: remove consistent alloc stuff from the machine vector sh: use declared coherent memory for dreamcast pci ethernet adapter sh: declared coherent memory support V2 sh: Add support for SDK7780 board. sh: constify function pointer tables sh: Kill off -traditional for linker script. cdrom: Add support for Sega Dreamcast GD-ROM. sh: Kill off hs7751rvoip reference from arch/sh/Kconfig. sh: Drop r7780rp_defconfig, use r7780mp_defconfig as kbuild default. sh: Kill off dead HS771RVoIP board support. sh: r7785rp: Fix up DECLARE_INTC_DESC() arg mismatch. sh: r7785rp: Hook up the rest of the HL7785 FPGA IRQ vectors. sh: r2d - enable sm501 usb host function sh: remove voyagergx sh: r2d - add lcd planel timings to sm501 platform data sh: Add OHCI and UDC platform devices for SH7720. sh: intc - remove default interrupt priority tables sh: Correct pte size mismatch for X2 TLB. ...
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/Makefile30
-rw-r--r--arch/sh/kernel/Makefile_3226
-rw-r--r--arch/sh/kernel/Makefile_6422
-rw-r--r--arch/sh/kernel/cpu/Makefile6
-rw-r--r--arch/sh/kernel/cpu/init.c74
-rw-r--r--arch/sh/kernel/cpu/irq/Makefile4
-rw-r--r--arch/sh/kernel/cpu/irq/intc-sh5.c257
-rw-r--r--arch/sh/kernel/cpu/irq/intc.c31
-rw-r--r--arch/sh/kernel/cpu/sh2/entry.S19
-rw-r--r--arch/sh/kernel/cpu/sh2/setup-sh7619.c2
-rw-r--r--arch/sh/kernel/cpu/sh2a/Makefile4
-rw-r--r--arch/sh/kernel/cpu/sh2a/clock-sh7203.c89
-rw-r--r--arch/sh/kernel/cpu/sh2a/fpu.c633
-rw-r--r--arch/sh/kernel/cpu/sh2a/probe.c22
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-sh7203.c319
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-sh7206.c2
-rw-r--r--arch/sh/kernel/cpu/sh3/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh3/clock-sh7712.c71
-rw-r--r--arch/sh/kernel/cpu/sh3/entry.S24
-rw-r--r--arch/sh/kernel/cpu/sh3/ex.S2
-rw-r--r--arch/sh/kernel/cpu/sh3/probe.c9
-rw-r--r--arch/sh/kernel/cpu/sh3/setup-sh7705.c10
-rw-r--r--arch/sh/kernel/cpu/sh3/setup-sh770x.c11
-rw-r--r--arch/sh/kernel/cpu/sh3/setup-sh7710.c16
-rw-r--r--arch/sh/kernel/cpu/sh3/setup-sh7720.c78
-rw-r--r--arch/sh/kernel/cpu/sh4/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh4/fpu.c537
-rw-r--r--arch/sh/kernel/cpu/sh4/probe.c2
-rw-r--r--arch/sh/kernel/cpu/sh4/setup-sh7750.c18
-rw-r--r--arch/sh/kernel/cpu/sh4/setup-sh7760.c13
-rw-r--r--arch/sh/kernel/cpu/sh4/softfloat.c892
-rw-r--r--arch/sh/kernel/cpu/sh4a/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7763.c126
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7722.c10
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7763.c390
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7780.c13
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7785.c19
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-shx3.c14
-rw-r--r--arch/sh/kernel/cpu/sh5/Makefile7
-rw-r--r--arch/sh/kernel/cpu/sh5/entry.S2101
-rw-r--r--arch/sh/kernel/cpu/sh5/fpu.c166
-rw-r--r--arch/sh/kernel/cpu/sh5/probe.c76
-rw-r--r--arch/sh/kernel/cpu/sh5/switchto.S198
-rw-r--r--arch/sh/kernel/cpu/sh5/unwind.c326
-rw-r--r--arch/sh/kernel/dump_task.c31
-rw-r--r--arch/sh/kernel/early_printk.c12
-rw-r--r--arch/sh/kernel/entry-common.S27
-rw-r--r--arch/sh/kernel/head_32.S (renamed from arch/sh/kernel/head.S)6
-rw-r--r--arch/sh/kernel/head_64.S356
-rw-r--r--arch/sh/kernel/init_task.c4
-rw-r--r--arch/sh/kernel/io.c67
-rw-r--r--arch/sh/kernel/module.c62
-rw-r--r--arch/sh/kernel/process_32.c (renamed from arch/sh/kernel/process.c)93
-rw-r--r--arch/sh/kernel/process_64.c701
-rw-r--r--arch/sh/kernel/ptrace_32.c (renamed from arch/sh/kernel/ptrace.c)21
-rw-r--r--arch/sh/kernel/ptrace_64.c341
-rw-r--r--arch/sh/kernel/setup.c39
-rw-r--r--arch/sh/kernel/sh_ksyms_32.c (renamed from arch/sh/kernel/sh_ksyms.c)0
-rw-r--r--arch/sh/kernel/sh_ksyms_64.c55
-rw-r--r--arch/sh/kernel/signal_32.c (renamed from arch/sh/kernel/signal.c)18
-rw-r--r--arch/sh/kernel/signal_64.c751
-rw-r--r--arch/sh/kernel/sys_sh.c100
-rw-r--r--arch/sh/kernel/sys_sh32.c84
-rw-r--r--arch/sh/kernel/sys_sh64.c66
-rw-r--r--arch/sh/kernel/syscalls_32.S (renamed from arch/sh/kernel/syscalls.S)0
-rw-r--r--arch/sh/kernel/syscalls_64.S381
-rw-r--r--arch/sh/kernel/time_32.c (renamed from arch/sh/kernel/time.c)0
-rw-r--r--arch/sh/kernel/time_64.c519
-rw-r--r--arch/sh/kernel/timers/timer-cmt.c4
-rw-r--r--arch/sh/kernel/timers/timer-tmu.c1
-rw-r--r--arch/sh/kernel/traps.c949
-rw-r--r--arch/sh/kernel/traps_32.c919
-rw-r--r--arch/sh/kernel/traps_64.c975
-rw-r--r--arch/sh/kernel/vmlinux.lds.S139
-rw-r--r--arch/sh/kernel/vmlinux_32.lds.S152
-rw-r--r--arch/sh/kernel/vmlinux_64.lds.S164
76 files changed, 11952 insertions, 1760 deletions
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 4b81d9c47b0..349d833deab 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -1,25 +1,5 @@
-#
-# Makefile for the Linux/SuperH kernel.
-#
-
-extra-y := head.o init_task.o vmlinux.lds
-
-obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process.o ptrace.o \
- semaphore.o setup.o signal.o sys_sh.o syscalls.o \
- time.o topology.o traps.o
-
-obj-y += cpu/ timers/
-obj-$(CONFIG_VSYSCALL) += vsyscall/
-obj-$(CONFIG_SMP) += smp.o
-obj-$(CONFIG_CF_ENABLER) += cf-enabler.o
-obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
-obj-$(CONFIG_SH_KGDB) += kgdb_stub.o kgdb_jmp.o
-obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
-obj-$(CONFIG_MODULES) += sh_ksyms.o module.o
-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
-obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
-obj-$(CONFIG_PM) += pm.o
-obj-$(CONFIG_STACKTRACE) += stacktrace.o
-
-EXTRA_CFLAGS += -Werror
+ifeq ($(CONFIG_SUPERH32),y)
+include ${srctree}/arch/sh/kernel/Makefile_32
+else
+include ${srctree}/arch/sh/kernel/Makefile_64
+endif
diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32
new file mode 100644
index 00000000000..c8928983105
--- /dev/null
+++ b/arch/sh/kernel/Makefile_32
@@ -0,0 +1,26 @@
+#
+# Makefile for the Linux/SuperH kernel.
+#
+
+extra-y := head_32.o init_task.o vmlinux.lds
+
+obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process_32.o \
+ ptrace_32.o semaphore.o setup.o signal_32.o sys_sh.o sys_sh32.o \
+ syscalls_32.o time_32.o topology.o traps.o traps_32.o
+
+obj-y += cpu/ timers/
+obj-$(CONFIG_VSYSCALL) += vsyscall/
+obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_CF_ENABLER) += cf-enabler.o
+obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
+obj-$(CONFIG_SH_KGDB) += kgdb_stub.o kgdb_jmp.o
+obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
+obj-$(CONFIG_MODULES) += sh_ksyms_32.o module.o
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
+obj-$(CONFIG_PM) += pm.o
+obj-$(CONFIG_STACKTRACE) += stacktrace.o
+obj-$(CONFIG_BINFMT_ELF) += dump_task.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/kernel/Makefile_64 b/arch/sh/kernel/Makefile_64
new file mode 100644
index 00000000000..1ef21cc087f
--- /dev/null
+++ b/arch/sh/kernel/Makefile_64
@@ -0,0 +1,22 @@
+extra-y := head_64.o init_task.o vmlinux.lds
+
+obj-y := debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
+ ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o sys_sh64.o \
+ syscalls_64.o time_64.o topology.o traps.o traps_64.o
+
+obj-y += cpu/ timers/
+obj-$(CONFIG_VSYSCALL) += vsyscall/
+obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_CF_ENABLER) += cf-enabler.o
+obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
+obj-$(CONFIG_SH_KGDB) += kgdb_stub.o kgdb_jmp.o
+obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
+obj-$(CONFIG_MODULES) += sh_ksyms_64.o module.o
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
+obj-$(CONFIG_PM) += pm.o
+obj-$(CONFIG_STACKTRACE) += stacktrace.o
+obj-$(CONFIG_BINFMT_ELF) += dump_task.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index d055a3ea6b4..f471d242774 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -6,8 +6,14 @@ obj-$(CONFIG_CPU_SH2) = sh2/
obj-$(CONFIG_CPU_SH2A) = sh2a/
obj-$(CONFIG_CPU_SH3) = sh3/
obj-$(CONFIG_CPU_SH4) = sh4/
+obj-$(CONFIG_CPU_SH5) = sh5/
+
+# Special cases for family ancestry.
+
obj-$(CONFIG_CPU_SH4A) += sh4a/
+# Common interfaces.
+
obj-$(CONFIG_UBC_WAKEUP) += ubc.o
obj-$(CONFIG_SH_ADC) += adc.o
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index c217c4bf008..80a31329ead 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/log2.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
@@ -20,9 +21,12 @@
#include <asm/system.h>
#include <asm/cacheflush.h>
#include <asm/cache.h>
+#include <asm/elf.h>
#include <asm/io.h>
-#include <asm/ubc.h>
#include <asm/smp.h>
+#ifdef CONFIG_SUPERH32
+#include <asm/ubc.h>
+#endif
/*
* Generic wrapper for command line arguments to disable on-chip
@@ -61,25 +65,12 @@ static void __init speculative_execution_init(void)
/*
* Generic first-level cache init
*/
-static void __init cache_init(void)
+#ifdef CONFIG_SUPERH32
+static void __uses_jump_to_uncached cache_init(void)
{
unsigned long ccr, flags;
- /* First setup the rest of the I-cache info */
- current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
- current_cpu_data.icache.linesz;
-
- current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
- current_cpu_data.icache.linesz;
-
- /* And the D-cache too */
- current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
- current_cpu_data.dcache.linesz;
-
- current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
- current_cpu_data.dcache.linesz;
-
- jump_to_P2();
+ jump_to_uncached();
ccr = ctrl_inl(CCR);
/*
@@ -156,7 +147,31 @@ static void __init cache_init(void)
#endif
ctrl_outl(flags, CCR);
- back_to_P1();
+ back_to_cached();
+}
+#else
+#define cache_init() do { } while (0)
+#endif
+
+#define CSHAPE(totalsize, linesize, assoc) \
+ ((totalsize & ~0xff) | (linesize << 4) | assoc)
+
+#define CACHE_DESC_SHAPE(desc) \
+ CSHAPE((desc).way_size * (desc).ways, ilog2((desc).linesz), (desc).ways)
+
+static void detect_cache_shape(void)
+{
+ l1d_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.dcache);
+
+ if (current_cpu_data.dcache.flags & SH_CACHE_COMBINED)
+ l1i_cache_shape = l1d_cache_shape;
+ else
+ l1i_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.icache);
+
+ if (current_cpu_data.flags & CPU_HAS_L2_CACHE)
+ l2_cache_shape = CACHE_DESC_SHAPE(current_cpu_data.scache);
+ else
+ l2_cache_shape = -1; /* No S-cache */
}
#ifdef CONFIG_SH_DSP
@@ -228,14 +243,32 @@ asmlinkage void __cpuinit sh_cpu_init(void)
if (current_cpu_data.type == CPU_SH_NONE)
panic("Unknown CPU");
+ /* First setup the rest of the I-cache info */
+ current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
+ current_cpu_data.icache.linesz;
+
+ current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
+ current_cpu_data.icache.linesz;
+
+ /* And the D-cache too */
+ current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
+ current_cpu_data.dcache.linesz;
+
+ current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
+ current_cpu_data.dcache.linesz;
+
/* Init the cache */
cache_init();
- if (raw_smp_processor_id() == 0)
+ if (raw_smp_processor_id() == 0) {
shm_align_mask = max_t(unsigned long,
current_cpu_data.dcache.way_size - 1,
PAGE_SIZE - 1);
+ /* Boot CPU sets the cache shape */
+ detect_cache_shape();
+ }
+
/* Disable the FPU */
if (fpu_disabled) {
printk("FPU Disabled\n");
@@ -273,7 +306,10 @@ asmlinkage void __cpuinit sh_cpu_init(void)
* like PTRACE_SINGLESTEP or doing hardware watchpoints in GDB. So ..
* we wake it up and hope that all is well.
*/
+#ifdef CONFIG_SUPERH32
if (raw_smp_processor_id() == 0)
ubc_wakeup();
+#endif
+
speculative_execution_init();
}
diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile
index 8da8e178f09..cc1836e47a5 100644
--- a/arch/sh/kernel/cpu/irq/Makefile
+++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -1,7 +1,9 @@
#
# Makefile for the Linux/SuperH CPU-specifc IRQ handlers.
#
-obj-y += imask.o intc.o
+obj-y += intc.o
+obj-$(CONFIG_SUPERH32) += imask.o
+obj-$(CONFIG_CPU_SH5) += intc-sh5.o
obj-$(CONFIG_CPU_HAS_IPR_IRQ) += ipr.o
obj-$(CONFIG_CPU_HAS_MASKREG_IRQ) += maskreg.o
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
new file mode 100644
index 00000000000..43ee7a9a4f0
--- /dev/null
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -0,0 +1,257 @@
+/*
+ * arch/sh/kernel/cpu/irq/intc-sh5.c
+ *
+ * Interrupt Controller support for SH5 INTC.
+ *
+ * Copyright (C) 2000, 2001 Paolo Alberelli
+ * Copyright (C) 2003 Paul Mundt
+ *
+ * Per-interrupt selective. IRLM=0 (Fixed priority) is not
+ * supported being useless without a cascaded interrupt
+ * controller.
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <asm/cpu/irq.h>
+#include <asm/page.h>
+
+/*
+ * Maybe the generic Peripheral block could move to a more
+ * generic include file. INTC Block will be defined here
+ * and only here to make INTC self-contained in a single
+ * file.
+ */
+#define INTC_BLOCK_OFFSET 0x01000000
+
+/* Base */
+#define INTC_BASE PHYS_PERIPHERAL_BLOCK + \
+ INTC_BLOCK_OFFSET
+
+/* Address */
+#define INTC_ICR_SET (intc_virt + 0x0)
+#define INTC_ICR_CLEAR (intc_virt + 0x8)
+#define INTC_INTPRI_0 (intc_virt + 0x10)
+#define INTC_INTSRC_0 (intc_virt + 0x50)
+#define INTC_INTSRC_1 (intc_virt + 0x58)
+#define INTC_INTREQ_0 (intc_virt + 0x60)
+#define INTC_INTREQ_1 (intc_virt + 0x68)
+#define INTC_INTENB_0 (intc_virt + 0x70)
+#define INTC_INTENB_1 (intc_virt + 0x78)
+#define INTC_INTDSB_0 (intc_virt + 0x80)
+#define INTC_INTDSB_1 (intc_virt + 0x88)
+
+#define INTC_ICR_IRLM 0x1
+#define INTC_INTPRI_PREGS 8 /* 8 Priority Registers */
+#define INTC_INTPRI_PPREG 8 /* 8 Priorities per Register */
+
+
+/*
+ * Mapper between the vector ordinal and the IRQ number
+ * passed to kernel/device drivers.
+ */
+int intc_evt_to_irq[(0xE20/0x20)+1] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0x000 - 0x0E0 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0x100 - 0x1E0 */
+ 0, 0, 0, 0, 0, 1, 0, 0, /* 0x200 - 0x2E0 */
+ 2, 0, 0, 3, 0, 0, 0, -1, /* 0x300 - 0x3E0 */
+ 32, 33, 34, 35, 36, 37, 38, -1, /* 0x400 - 0x4E0 */
+ -1, -1, -1, 63, -1, -1, -1, -1, /* 0x500 - 0x5E0 */
+ -1, -1, 18, 19, 20, 21, 22, -1, /* 0x600 - 0x6E0 */
+ 39, 40, 41, 42, -1, -1, -1, -1, /* 0x700 - 0x7E0 */
+ 4, 5, 6, 7, -1, -1, -1, -1, /* 0x800 - 0x8E0 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0x900 - 0x9E0 */
+ 12, 13, 14, 15, 16, 17, -1, -1, /* 0xA00 - 0xAE0 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0xB00 - 0xBE0 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0xC00 - 0xCE0 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 0xD00 - 0xDE0 */
+ -1, -1 /* 0xE00 - 0xE20 */
+};
+
+/*
+ * Opposite mapper.
+ */
+static int IRQ_to_vectorN[NR_INTC_IRQS] = {
+ 0x12, 0x15, 0x18, 0x1B, 0x40, 0x41, 0x42, 0x43, /* 0- 7 */
+ -1, -1, -1, -1, 0x50, 0x51, 0x52, 0x53, /* 8-15 */
+ 0x54, 0x55, 0x32, 0x33, 0x34, 0x35, 0x36, -1, /* 16-23 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 24-31 */
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x38, /* 32-39 */
+ 0x39, 0x3A, 0x3B, -1, -1, -1, -1, -1, /* 40-47 */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* 48-55 */
+ -1, -1, -1, -1, -1, -1, -1, 0x2B, /* 56-63 */
+
+};
+
+static unsigned long intc_virt;
+
+static unsigned int startup_intc_irq(unsigned int irq);
+static void shutdown_intc_irq(unsigned int irq);
+static void enable_intc_irq(unsigned int irq);
+static void disable_intc_irq(unsigned int irq);
+static void mask_and_ack_intc(unsigned int);
+static void end_intc_irq(unsigned int irq);
+
+static struct hw_interrupt_type intc_irq_type = {
+ .typename = "INTC",
+ .startup = startup_intc_irq,
+ .shutdown = shutdown_intc_irq,
+ .enable = enable_intc_irq,
+ .disable = disable_intc_irq,
+ .ack = mask_and_ack_intc,
+ .end = end_intc_irq
+};
+
+static int irlm; /* IRL mode */
+
+static unsigned int startup_intc_irq(unsigned int irq)
+{
+ enable_intc_irq(irq);
+ return 0; /* never anything pending */
+}
+
+static void shutdown_intc_irq(unsigned int irq)
+{
+ disable_intc_irq(irq);
+}
+
+static void enable_intc_irq(unsigned int irq)
+{
+ unsigned long reg;
+ unsigned long bitmask;
+
+ if ((irq <= IRQ_IRL3) && (irlm == NO_PRIORITY))
+ printk("Trying to use straight IRL0-3 with an encoding platform.\n");
+
+ if (irq < 32) {
+ reg = INTC_INTENB_0;
+ bitmask = 1 << irq;
+ } else {
+ reg = INTC_INTENB_1;
+ bitmask = 1 << (irq - 32);
+ }
+
+ ctrl_outl(bitmask, reg);
+}
+
+static void disable_intc_irq(unsigned int irq)
+{
+ unsigned long reg;
+ unsigned long bitmask;
+
+ if (irq < 32) {
+ reg = INTC_INTDSB_0;
+ bitmask = 1 << irq;
+ } else {
+ reg = INTC_INTDSB_1;
+ bitmask = 1 << (irq - 32);
+ }
+
+ ctrl_outl(bitmask, reg);
+}
+
+static void mask_and_ack_intc(unsigned int irq)
+{
+ disable_intc_irq(irq);
+}
+
+static void end_intc_irq(unsigned int irq)
+{
+ enable_intc_irq(irq);
+}
+
+/* For future use, if we ever support IRLM=0) */
+void make_intc_irq(unsigned int irq)
+{
+ disable_irq_nosync(irq);
+ irq_desc[irq].chip = &intc_irq_type;
+ disable_intc_irq(irq);
+}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
+int intc_irq_describe(char* p, int irq)
+{
+ if (irq < NR_INTC_IRQS)
+ return sprintf(p, "(0x%3x)", IRQ_to_vectorN[irq]*0x20);
<