diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:08:04 +0900 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:08:04 +0900 |
commit | de390bba797aa9a554bc1769b6a8771605854d79 (patch) | |
tree | ce95610d4a70ec0a7307a30cfd1a66fdf0c901ab /arch/mips/mipssim | |
parent | 50e0d10232db05c6776afcf6098459bff47e8b15 (diff) | |
parent | 382fc33b4a04e2dde89b4c69a6880e0c7d9761e2 (diff) |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS update from Ralf Baechle:
"This is the MIPS update for 3.7.
A fair chunk of them are platform updates to the Cavium Octeon SOC
(which involves machine generated header files of considerable size),
Atheros ATH79xx, RMI aka Netlogic aka Broadcom XLP, Broadcom BCM63xx
platforms.
Support for the commercial MIPS simulator MIPSsim has been removed as
MIPS Technologies is shifting away from this product and Qemu is
offering various more powerful platforms. The generic MIPS code can
now also probe for no-execute / write-only TLB features implemented
without the full SmartMIPS extension as permitted by the latest MIPS
processor architecture. Lots of small changes to generic code."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (78 commits)
MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLs
MIPS: ath79: use correct fractional dividers for {CPU,DDR}_PLL on AR934x
MIPS: BCM63XX: Properly handle mac address octet overflow
MIPS: Kconfig: Avoid build errors by hiding USE_OF from the user.
MIPS: Replace `-' in defconfig filename wth `_' for consistency.
MIPS: Wire kcmp syscall.
MIPS: MIPSsim: Remove the MIPSsim platform.
MIPS: NOTIFY_RESUME is not needed in TIF masks
MIPS: Merge the identical "return from syscall" per-ABI code
MIPS: Unobfuscate _TIF..._MASK
MIPS: Prevent hitting do_notify_resume() with !user_mode(regs).
MIPS: Replace 'kernel_uses_smartmips_rixi' with 'cpu_has_rixi'.
MIPS: Add base architecture support for RI and XI.
MIPS: Optimise TLB handlers for MIPS32/64 R2 cores.
MIPS: uasm: Add INS and EXT instructions.
MIPS: Avoid pipeline stalls on some MIPS32R2 cores.
MIPS: Make VPE count to be one-based.
MIPS: Add new end of interrupt functionality for GIC.
MIPS: Add EIC support for GIC.
MIPS: Code clean-ups for the GIC.
...
Diffstat (limited to 'arch/mips/mipssim')
-rw-r--r-- | arch/mips/mipssim/Makefile | 23 | ||||
-rw-r--r-- | arch/mips/mipssim/Platform | 6 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_console.c | 40 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_int.c | 87 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_mem.c | 115 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_platform.c | 35 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_setup.c | 99 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_smtc.c | 116 | ||||
-rw-r--r-- | arch/mips/mipssim/sim_time.c | 117 |
9 files changed, 0 insertions, 638 deletions
diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile deleted file mode 100644 index 01410a3f172..00000000000 --- a/arch/mips/mipssim/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -# -# Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved. -# Copyright (C) 2007 MIPS Technologies, Inc. -# written by Ralf Baechle (ralf@linux-mips.org) -# -# 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 := sim_platform.o sim_setup.o sim_mem.o sim_time.o sim_int.o - -obj-$(CONFIG_EARLY_PRINTK) += sim_console.o -obj-$(CONFIG_MIPS_MT_SMTC) += sim_smtc.o diff --git a/arch/mips/mipssim/Platform b/arch/mips/mipssim/Platform deleted file mode 100644 index 3df60b8a12e..00000000000 --- a/arch/mips/mipssim/Platform +++ /dev/null @@ -1,6 +0,0 @@ -# -# MIPS SIM -# -platform-$(CONFIG_MIPS_SIM) += mipssim/ -cflags-$(CONFIG_MIPS_SIM) += -I$(srctree)/arch/mips/include/asm/mach-mipssim -load-$(CONFIG_MIPS_SIM) += 0x80100000 diff --git a/arch/mips/mipssim/sim_console.c b/arch/mips/mipssim/sim_console.c deleted file mode 100644 index a2f41672cd5..00000000000 --- a/arch/mips/mipssim/sim_console.c +++ /dev/null @@ -1,40 +0,0 @@ -/* - * 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. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * Copyright (C) 2007 MIPS Technologies, Inc. - * written by Ralf Baechle - */ -#include <linux/init.h> -#include <linux/io.h> -#include <linux/serial_reg.h> - -static inline unsigned int serial_in(int offset) -{ - return inb(0x3f8 + offset); -} - -static inline void serial_out(int offset, int value) -{ - outb(value, 0x3f8 + offset); -} - -void __init prom_putchar(char c) -{ - while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0) - ; - - serial_out(UART_TX, c); -} diff --git a/arch/mips/mipssim/sim_int.c b/arch/mips/mipssim/sim_int.c deleted file mode 100644 index 5c779be6f08..00000000000 --- a/arch/mips/mipssim/sim_int.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Copyright (C) 1999, 2005 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/sched.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <asm/mips-boards/simint.h> -#include <asm/irq_cpu.h> - -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 -} - -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 > 0) - do_IRQ(MIPS_CPU_IRQ_BASE + irq); - else - spurious_interrupt(); -} - -void __init arch_init_irq(void) -{ - mips_cpu_irq_init(); -} diff --git a/arch/mips/mipssim/sim_mem.c b/arch/mips/mipssim/sim_mem.c deleted file mode 100644 index 953d836a771..00000000000 --- a/arch/mips/mipssim/sim_mem.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright (C) 2005 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/mm.h> -#include <linux/bootmem.h> -#include <linux/pfn.h> - -#include <asm/bootinfo.h> -#include <asm/page.h> -#include <asm/sections.h> - -#include <asm/mips-boards/prom.h> - -/*#define DEBUG*/ - -enum simmem_memtypes { - simmem_reserved = 0, - simmem_free, -}; -struct prom_pmemblock mdesc[PROM_MAX_PMEMBLOCKS]; - -#ifdef DEBUG -static char *mtypes[3] = { - "SIM reserved memory", - "SIM free memory", -}; -#endif - -struct prom_pmemblock * __init prom_getmdesc(void) -{ - unsigned int memsize; - - memsize = 0x02000000; - pr_info("Setting default memory size 0x%08x\n", memsize); - - memset(mdesc, 0, sizeof(mdesc)); - - mdesc[0].type = simmem_reserved; - mdesc[0].base = 0x00000000; - mdesc[0].size = 0x00001000; - - mdesc[1].type = simmem_free; - mdesc[1].base = 0x00001000; - mdesc[1].size = 0x000ff000; - - mdesc[2].type = simmem_reserved; - mdesc[2].base = 0x00100000; - mdesc[2].size = CPHYSADDR(PFN_ALIGN(&_end)) - mdesc[2].base; - - mdesc[3].type = simmem_free; - mdesc[3].base = CPHYSADDR(PFN_ALIGN(&_end)); - mdesc[3].size = memsize - mdesc[3].base; - - return &mdesc[0]; -} - -static int __init prom_memtype_classify(unsigned int type) -{ - switch (type) { - case simmem_free: - return BOOT_MEM_RAM; - case simmem_reserved: - default: - return BOOT_MEM_RESERVED; - } -} - -void __init prom_meminit(void) -{ - struct prom_pmemblock *p; - - p = prom_getmdesc(); - - while (p->size) { - long type; - unsigned long base, size; - - type = prom_memtype_classify(p->type); - base = p->base; - size = p->size; - - add_memory_region(base, size, type); - p++; - } -} - -void __init prom_free_prom_memory(void) -{ - int i; - unsigned long addr; - - for (i = 0; i < boot_mem_map.nr_map; i++) { - if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA) - continue; - - addr = boot_mem_map.map[i].addr; - free_init_pages("prom memory", - addr, addr + boot_mem_map.map[i].size); - } -} diff --git a/arch/mips/mipssim/sim_platform.c b/arch/mips/mipssim/sim_platform.c deleted file mode 100644 index 53210a8c5de..00000000000 --- a/arch/mips/mipssim/sim_platform.c +++ /dev/null @@ -1,35 +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) 2007 by Ralf Baechle (ralf@linux-mips.org) - */ -#include <linux/init.h> -#include <linux/if_ether.h> -#include <linux/kernel.h> -#include <linux/platform_device.h> - -static char mipsnet_string[] = "mipsnet"; - -static struct platform_device eth1_device = { - .name = mipsnet_string, - .id = 0, -}; - -/* - * Create a platform device for the GPI port that receives the - * image data from the embedded camera. - */ -static int __init mipsnet_devinit(void) -{ - int err; - - err = platform_device_register(ð1_device); - if (err) - printk(KERN_ERR "%s: registration failed\n", mipsnet_string); - - return err; -} - -device_initcall(mipsnet_devinit); diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c deleted file mode 100644 index 256e0cdaa49..00000000000 --- a/arch/mips/mipssim/sim_setup.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (C) 2005 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/string.h> -#include <linux/kernel.h> -#include <linux/io.h> -#include <linux/irq.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/mips-boards/generic.h> -#include <asm/mips-boards/prom.h> -#include <asm/time.h> -#include <asm/mips-boards/sim.h> -#include <asm/mips-boards/simint.h> -#include <asm/smp-ops.h> - - -static void __init serial_init(void); -unsigned int _isbonito; - -const char *get_system_type(void) -{ - return "MIPSsim"; -} - -void __init plat_mem_setup(void) -{ - set_io_port_base(0xbfd00000); - - serial_init(); -} - -extern struct plat_smp_ops ssmtc_smp_ops; - -void __init prom_init(void) -{ - set_io_port_base(0xbfd00000); - - prom_meminit(); - - if (cpu_has_mipsmt) { - if (!register_vsmp_smp_ops()) - return; - -#ifdef CONFIG_MIPS_MT_SMTC - register_smp_ops(&ssmtc_smp_ops); - return; -#endif - } - - register_up_smp_ops(); -} - -static void __init serial_init(void) -{ -#ifdef CONFIG_SERIAL_8250 - struct uart_port s; - - memset(&s, 0, sizeof(s)); - - s.iobase = 0x3f8; - - /* hardware int 4 - the serial int, is CPU int 6 - but poll for now */ - s.irq = 0; - s.uartclk = 1843200; - s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; - s.iotype = UPIO_PORT; - s.regshift = 0; - s.timeout = 4; - - if (early_serial_setup(&s) != 0) { - printk(KERN_ERR "Serial setup failed!\n"); - } - -#endif -} diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c deleted file mode 100644 index 3c104abd8aa..00000000000 --- a/arch/mips/mipssim/sim_smtc.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright (C) 2005 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. - * - */ -/* - * Simulator Platform-specific hooks for SMTC operation - */ -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/cpumask.h> -#include <linux/interrupt.h> -#include <linux/smp.h> - -#include <linux/atomic.h> -#include <asm/cpu.h> -#include <asm/processor.h> -#include <asm/smtc.h> -#include <asm/mmu_context.h> -#include <asm/smtc_ipi.h> - -/* VPE/SMP Prototype implements platform interfaces directly */ - -/* - * Cause the specified action to be performed on a targeted "CPU" - */ - -static void ssmtc_send_ipi_single(int cpu, unsigned int action) -{ - smtc_send_ipi(cpu, LINUX_SMP_IPI, action); - /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ -} - -static inline void ssmtc_send_ipi_mask(const struct cpumask *mask, - unsigned int action) -{ - unsigned int i; - - for_each_cpu(i, mask) - ssmtc_send_ipi_single(i, action); -} - -/* - * Post-config but pre-boot cleanup entry point - */ -static void __cpuinit ssmtc_init_secondary(void) -{ - smtc_init_secondary(); -} - -/* - * SMP initialization finalization entry point - */ -static void __cpuinit ssmtc_smp_finish(void) -{ - smtc_smp_finish(); -} - -/* - * Hook for after all CPUs are online - */ -static void ssmtc_cpus_done(void) -{ -} - -/* - * Platform "CPU" startup hook - */ -static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle) -{ - smtc_boot_secondary(cpu, idle); -} - -static void __init ssmtc_smp_setup(void) -{ - if (read_c0_config3() & (1 << 2)) - mipsmt_build_cpu_map(0); -} - -/* - * Platform SMP pre-initialization - */ -static void ssmtc_prepare_cpus(unsigned int max_cpus) -{ - /* - * As noted above, we can assume a single CPU for now - * but it may be multithreaded. - */ - - if (read_c0_config3() & (1 << 2)) { - mipsmt_prepare_cpus(); - } -} - -struct plat_smp_ops ssmtc_smp_ops = { - .send_ipi_single = ssmtc_send_ipi_single, - .send_ipi_mask = ssmtc_send_ipi_mask, - .init_secondary = ssmtc_init_secondary, - .smp_finish = ssmtc_smp_finish, - .cpus_done = ssmtc_cpus_done, - .boot_secondary = ssmtc_boot_secondary, - .smp_setup = ssmtc_smp_setup, - .prepare_cpus = ssmtc_prepare_cpus, -}; diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c deleted file mode 100644 index 77bad3c0428..00000000000 --- a/arch/mips/mipssim/sim_time.c +++ /dev/null @@ -1,117 +0,0 @@ -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/mc146818rtc.h> -#include <linux/smp.h> -#include <linux/timex.h> - -#include <asm/hardirq.h> -#include <asm/div64.h> -#include <asm/cpu.h> -#include <asm/setup.h> -#include <asm/time.h> -#include <asm/irq.h> -#include <asm/mc146818-time.h> -#include <asm/msc01_ic.h> - -#include <asm/mips-boards/generic.h> -#include <asm/mips-boards/prom.h> -#include <asm/mips-boards/simint.h> - - -unsigned long cpu_khz; - -/* - * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect - */ -static unsigned int __init estimate_cpu_frequency(void) -{ - unsigned int prid = read_c0_prid() & 0xffff00; - unsigned int count; - -#if 1 - /* - * hardwire the board frequency to 12MHz. - */ - - if ((prid == (PRID_COMP_MIPS | PRID_IMP_20KC)) || - (prid == (PRID_COMP_MIPS | PRID_IMP_25KF))) - count = 12000000; - else - count = 6000000; -#else - unsigned int flags; - - local_irq_save(flags); - - /* Start counter exactly on falling edge of update flag */ - while (CMOS_READ(RTC_REG_A) & RTC_UIP); - while (!(CMOS_READ(RTC_REG_A) & RTC_UIP)); - - /* Start r4k counter. */ - write_c0_count(0); - - /* Read counter exactly on falling edge of update flag */ - while (CMOS_READ(RTC_REG_A) & RTC_UIP); - while (!(CMOS_READ(RTC_REG_A) & RTC_UIP)); - - count = read_c0_count(); - - /* restore interrupts */ - local_irq_restore(flags); -#endif - - mips_hpt_frequency = count; - - if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) && - (prid != (PRID_COMP_MIPS | PRID_IMP_25KF))) - count *= 2; - - count += 5000; /* round */ - count -= count%10000; - - return count; -} - -static int mips_cpu_timer_irq; - -static void mips_timer_dispatch(void) -{ - do_IRQ(mips_cpu_timer_irq); -} - - -unsigned __cpuinit get_c0_compare_int(void) -{ -#ifdef MSC01E_INT_BASE - if (cpu_has_veic) { - set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch); - mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR; - - return mips_cpu_timer_irq; - } -#endif - if (cpu_has_vint) - set_vi_handler(cp0_compare_irq, mips_timer_dispatch); - mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; - - return mips_cpu_timer_irq; -} - -void __init plat_time_init(void) -{ - unsigned int est_freq; - - /* Set Data mode - binary. */ - CMOS_WRITE(CMOS_READ(RTC_CONTROL) | RTC_DM_BINARY, RTC_CONTROL); - - est_freq = estimate_cpu_frequency(); - - printk(KERN_INFO "CPU frequency %d.%02d MHz\n", est_freq / 1000000, - (est_freq % 1000000) * 100 / 1000000); - - cpu_khz = est_freq / 1000; -} |