diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-29 08:52:50 +1100 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-29 08:52:50 +1100 |
commit | e189f3495c4e30fc84fc9241096edf3932e23439 (patch) | |
tree | 5916c89ace81537a02ae01869386ba6caafdab9c /arch/sh/kernel | |
parent | f4798748dee00c807a63f5518f08b3df161e0f6d (diff) | |
parent | 6582d7b7376aa587d74b08c74457dc28abc1a9fa (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')
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); < |