renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-11-24 02:24:28 +08:00
Code

asm-generic: cross-architecture timer cleanup

Browse Source 
This cleans up two ancient timer features that were never completed in
 the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET.
 
 There was only one user left for the ARCH_USES_GETTIMEOFFSET variant
 of clocksource implementations, the ARM EBSA110 platform. Rather than
 changing to use modern timekeeping, we remove the platform entirely as
 Russell no longer uses his machine and nobody else seems to have one
 any more.
 
 The conditional code for using arch_gettimeoffset() is removed as
 a result.
 
 For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms
 not using clockevent drivers: parisc, ia64, most of m68k, and one
 Arm platform. These all do timer ticks slighly differently, and this
 gets cleaned up to the point they at least all call the same helper
 function. Instead of most platforms using 'select GENERIC_CLOCKEVENTS'
 in Kconfig, the polarity is now reversed, with the few remaining ones
 selecting LEGACY_TIMER_TICK instead.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl/Y1v8ACgkQmmx57+YA
 GNmCvQ/9EDlgCt92r8SB+LGafDtgB8TUQZeIrs9S2mByzdxwnw0lxObIXFCnhQgh
 RpG3dR+ONRDnC5eI149B377JOEFMZWe2+BtYHUHkFARtUEWatslQcz7yAGvVRK/l
 TS/qReb6piKltlzuanF1bMZbjy2OhlaDRcm+OlC3y5mALR33M4emb+rJ6cSdfk3K
 v1iZhrxtfQT77ztesh/oPkPiyQ6kNcz7SfpyYOb6f5VLlml2BZ7YwBSVyGY7urHk
 RL3XqOUP4KKlMEAI8w0E2nvft6Fk+luziBhrMYWK0GvbmI1OESENuX/c6tgT2OQ1
 DRaVHvcPG/EAY8adOKxxVyHhEJDSoz5GJV/EtjlOegsJk6RomczR1uuiT3Kvm7Ah
 PktMKv4xQht1E15KPSKbOvNIEP18w2s5z6gw+jVDv8pw42pVEQManm1D+BICqrhl
 fcpw6T1drf9UxAjwX4+zXtmNs+a+mqiFG8puU4VVgT4GpQ8umHvunXz2WUjZO0jc
 3m8ErJHBvtJwW5TOHGyXnjl9SkwPzHOfF6IcXTYWEDU4/gQIK9TwUvCjLc0lE27t
 FMCV2ds7/K1CXwRgpa5IrefSkb8yOXSbRZ56NqqF7Ekxw4J5bYRSaY7jb+qD/e+3
 5O1y+iPxFrpH+16hSahvzrtcdFNbLQvBBuRtEQOYuHLt2UJrNoU=
 =QpNs
 -----END PGP SIGNATURE-----

Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic cross-architecture timer cleanup from Arnd Bergmann:
 "This cleans up two ancient timer features that were never completed in
  the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET.

  There was only one user left for the ARCH_USES_GETTIMEOFFSET variant
  of clocksource implementations, the ARM EBSA110 platform. Rather than
  changing to use modern timekeeping, we remove the platform entirely as
  Russell no longer uses his machine and nobody else seems to have one
  any more.

  The conditional code for using arch_gettimeoffset() is removed as a
  result.

  For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms
  not using clockevent drivers: parisc, ia64, most of m68k, and one Arm
  platform. These all do timer ticks slighly differently, and this gets
  cleaned up to the point they at least all call the same helper
  function.

  Instead of most platforms using 'select GENERIC_CLOCKEVENTS' in
  Kconfig, the polarity is now reversed, with the few remaining ones
  selecting LEGACY_TIMER_TICK instead"

* tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  timekeeping: default GENERIC_CLOCKEVENTS to enabled
  timekeeping: remove xtime_update
  m68k: remove timer_interrupt() function
  m68k: change remaining timers to legacy_timer_tick
  m68k: m68328: use legacy_timer_tick()
  m68k: sun3/sun3c: use legacy_timer_tick
  m68k: split heartbeat out of timer function
  m68k: coldfire: use legacy_timer_tick()
  parisc: use legacy_timer_tick
  ARM: rpc: use legacy_timer_tick
  ia64: convert to legacy_timer_tick
  timekeeping: add CONFIG_LEGACY_TIMER_TICK
  timekeeping: remove arch_gettimeoffset
  net: remove am79c961a driver
  ARM: remove ebsa110 platform
This commit is contained in:
Linus Torvalds 2020-12-16 00:07:17 -08:00
commit 7a932e5702
92 changed files with 219 additions and 2454 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/features/time/clockevents/arch-support.txt
View File

@ -1,6 +1,6 @@
#
# Feature name: clockevents
# Kconfig: GENERIC_CLOCKEVENTS
# Kconfig: !LEGACY_TIMER_TICK
# description: arch support generic clock events
#
-----------------------
@ -8,20 +8,20 @@
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | ok |
| arm: | TODO |
| arm64: | ok |
| c6x: | ok |
| csky: | ok |
| h8300: | ok |
| hexagon: | ok |
| ia64: | TODO |
| m68k: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |

33
Documentation/features/time/modern-timekeeping/arch-support.txt
View File

@ -1,33 +0,0 @@
#
# Feature name: modern-timekeeping
# Kconfig: !ARCH_USES_GETTIMEOFFSET
# description: arch does not use arch_gettimeoffset() anymore
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | TODO |
| arm64: | ok |
| c6x: | ok |
| csky: | ok |
| h8300: | ok |
| hexagon: | ok |
| ia64: | ok |
| m68k: | ok |
| microblaze: | ok |
| mips: | ok |
| nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------

8
MAINTAINERS
View File

@ -1799,14 +1799,6 @@ F: drivers/firmware/turris-mox-rwtm.c
F: drivers/gpio/gpio-moxtet.c
F: include/linux/moxtet.h
ARM/EBSA110 MACHINE SUPPORT
M: Russell King <linux@armlinux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
W: http://www.armlinux.org.uk/
F: arch/arm/mach-ebsa110/
F: drivers/net/ethernet/amd/am79c961a.*
ARM/ENERGY MICRO (SILICON LABS) EFM32 SUPPORT
M: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
R: Pengutronix Kernel Team <kernel@pengutronix.de>

1
arch/alpha/Kconfig
View File

@ -27,7 +27,6 @@ config ALPHA
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select AUDIT_ARCH
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_VULNERABILITIES
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER

1
arch/arc/Kconfig
View File

@ -19,7 +19,6 @@ config ARC
select COMMON_CLK
select DMA_DIRECT_REMAP
select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
select GENERIC_CLOCKEVENTS
select GENERIC_FIND_FIRST_BIT
# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
select GENERIC_IRQ_SHOW

37
arch/arm/Kconfig
View File

@ -269,8 +269,7 @@ config PHYS_OFFSET
hex "Physical address of main memory" if MMU
depends on !ARM_PATCH_PHYS_VIRT
default DRAM_BASE if !MMU
default 0x00000000 if ARCH_EBSA110 || \
ARCH_FOOTBRIDGE
default 0x00000000 if ARCH_FOOTBRIDGE
default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
default 0x20000000 if ARCH_S5PV210
default 0xc0000000 if ARCH_SA1100
@ -324,7 +323,6 @@ config ARCH_MULTIPLATFORM
select AUTO_ZRELADDR
select TIMER_OF
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_MULTI_HANDLER
select HAVE_PCI
select PCI_DOMAINS_GENERIC if PCI
@ -339,25 +337,10 @@ config ARM_SINGLE_ARMV7M
select TIMER_OF
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
select NO_IOPORT_MAP
select SPARSE_IRQ
select USE_OF
config ARCH_EBSA110
bool "EBSA-110"
select ARCH_USES_GETTIMEOFFSET
select CPU_SA110
select ISA
select NEED_MACH_IO_H
select NEED_MACH_MEMORY_H
select NO_IOPORT_MAP
help
This is an evaluation board for the StrongARM processor available
from Digital. It has limited hardware on-board, including an
Ethernet interface, two PCMCIA sockets, two serial ports and a
parallel port.
config ARCH_EP93XX
bool "EP93xx-based"
select ARCH_SPARSEMEM_ENABLE
@ -368,7 +351,6 @@ config ARCH_EP93XX
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select CPU_ARM920T
select GENERIC_CLOCKEVENTS
select GPIOLIB
select HAVE_LEGACY_CLK
help
@ -378,7 +360,6 @@ config ARCH_FOOTBRIDGE
bool "FootBridge"
select CPU_SA110
select FOOTBRIDGE
select GENERIC_CLOCKEVENTS
select HAVE_IDE
select NEED_MACH_IO_H if !MMU
select NEED_MACH_MEMORY_H
@ -406,7 +387,6 @@ config ARCH_IXP4XX
select ARCH_SUPPORTS_BIG_ENDIAN
select CPU_XSCALE
select DMABOUNCE if PCI
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_MULTI_HANDLER
select GPIO_IXP4XX
select GPIOLIB
@ -422,7 +402,6 @@ config ARCH_IXP4XX
config ARCH_DOVE
bool "Marvell Dove"
select CPU_PJ4
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_MULTI_HANDLER
select GPIOLIB
select HAVE_PCI
@ -446,7 +425,6 @@ config ARCH_PXA
select CLKSRC_MMIO
select TIMER_OF
select CPU_XSCALE if !CPU_XSC3
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_MULTI_HANDLER
select GPIO_PXA
select GPIOLIB
@ -469,6 +447,7 @@ config ARCH_RPC
select HAVE_IDE
select HAVE_PATA_PLATFORM
select ISA_DMA_API
select LEGACY_TIMER_TICK
select NEED_MACH_IO_H
select NEED_MACH_MEMORY_H
select NO_IOPORT_MAP
@ -486,7 +465,6 @@ config ARCH_SA1100
select COMMON_CLK
select CPU_FREQ
select CPU_SA1100
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_MULTI_HANDLER
select GPIOLIB
select HAVE_IDE
@ -501,7 +479,6 @@ config ARCH_S3C24XX
bool "Samsung S3C24XX SoCs"
select ATAGS
select CLKSRC_SAMSUNG_PWM
select GENERIC_CLOCKEVENTS
select GPIO_SAMSUNG
select GPIOLIB
select GENERIC_IRQ_MULTI_HANDLER
@ -524,7 +501,6 @@ config ARCH_OMAP1
select ARCH_OMAP
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_MULTI_HANDLER
select GPIOLIB
@ -787,7 +763,6 @@ config ARCH_ACORN
config PLAT_IOP
bool
select GENERIC_CLOCKEVENTS
config PLAT_ORION
bool
@ -1178,7 +1153,6 @@ config HAVE_SMP
config SMP
bool "Symmetric Multi-Processing"
depends on CPU_V6K || CPU_V7
depends on GENERIC_CLOCKEVENTS
depends on HAVE_SMP
depends on MMU || ARM_MPU
select IRQ_WORK
@ -1372,7 +1346,6 @@ config ARCH_NR_GPIO
config HZ_FIXED
int
default 200 if ARCH_EBSA110
default 128 if SOC_AT91RM9200
default 0
@ -1583,9 +1556,7 @@ config FORCE_MAX_ZONEORDER
a value of 11 means that the largest free memory block is 2^10 pages.
config ALIGNMENT_TRAP
bool
depends on CPU_CP15_MMU
default y if !ARCH_EBSA110
def_bool CPU_CP15_MMU
select HAVE_PROC_CPU if PROC_FS
help
ARM processors cannot fetch/store information which is not
@ -1780,7 +1751,7 @@ config CMDLINE
string "Default kernel command string"
default ""
help
On some architectures (EBSA110 and CATS), there is currently no way
On some architectures (e.g. CATS), there is currently no way
for the boot loader to pass arguments to the kernel. For these
architectures, you should supply some command-line options at build
time by entering them here. As a minimum, you should specify the

6
arch/arm/Kconfig.debug
View File

@ -1567,7 +1567,7 @@ config DEBUG_SIRFSOC_UART
config DEBUG_UART_FLOW_CONTROL
bool "Enable flow control (CTS) for the debug UART"
depends on DEBUG_LL
default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
help
Some UART ports are connected to terminals that will use modem
control signals to indicate whether they are ready to receive text.
@ -1639,7 +1639,7 @@ config DEBUG_UART_PL01X
# Compatibility options for 8250
config DEBUG_UART_8250
def_bool ARCH_EBSA110 || ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
@ -1743,7 +1743,6 @@ config DEBUG_UART_PHYS
default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
default 0xe8009000 if DEBUG_R7S9210_SCIF4
default 0xf0000000 if DEBUG_DIGICOLOR_UA0
default 0xf0000be0 if ARCH_EBSA110
default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
default 0xf7fc9000 if DEBUG_BERLIN_UART
@ -1790,7 +1789,6 @@ config DEBUG_UART_VIRT
default 0xc8821000 if DEBUG_RV1108_UART1
default 0xc8912000 if DEBUG_RV1108_UART0
default 0xe0010fe0 if ARCH_RPC
default 0xf0000be0 if ARCH_EBSA110
default 0xf0010000 if DEBUG_ASM9260_UART
default 0xf0100000 if DEBUG_DIGICOLOR_UA0
default 0xf01fb000 if DEBUG_NOMADIK_UART

8
arch/arm/Makefile
View File

@ -168,7 +168,6 @@ machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
machine-$(CONFIG_ARCH_DAVINCI) += davinci
machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor
machine-$(CONFIG_ARCH_DOVE) += dove
machine-$(CONFIG_ARCH_EBSA110) += ebsa110
machine-$(CONFIG_ARCH_EFM32) += efm32
machine-$(CONFIG_ARCH_EP93XX) += ep93xx
machine-$(CONFIG_ARCH_EXYNOS) += exynos
@ -235,13 +234,6 @@ plat-$(CONFIG_PLAT_ORION) += orion
plat-$(CONFIG_PLAT_PXA) += pxa
plat-$(CONFIG_PLAT_VERSATILE) += versatile
ifeq ($(CONFIG_ARCH_EBSA110),y)
# This is what happens if you forget the IOCS16 line.
# PCMCIA cards stop working.
CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
export CFLAGS_3c589_cs.o
endif
# The byte offset of the kernel image in RAM from the start of RAM.
TEXT_OFFSET := $(textofs-y)

74
arch/arm/configs/ebsa110_defconfig
View File

@ -1,74 +0,0 @@
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_MODULES=y
CONFIG_ARCH_EBSA110=y
CONFIG_PCCARD=m
CONFIG_I82365=m
CONFIG_LEDS=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="root=/dev/nfs rw mem=16M console=ttyS1,38400n8"
CONFIG_FPE_NWFPE=y
CONFIG_FPE_FASTFPE=y
CONFIG_BINFMT_AOUT=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_SYN_COOKIES=y
CONFIG_IPV6=y
CONFIG_NETFILTER=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_FRAG=y
CONFIG_IP6_NF_MATCH_OPTS=y
CONFIG_IP6_NF_MATCH_HL=y
CONFIG_IP6_NF_MATCH_RT=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_FW_LOADER=m
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_1284=y
CONFIG_BLK_DEV_RAM=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_ARM_AM79C961A=y
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_PCNET=m
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_CS=m
CONFIG_PRINTER=m
CONFIG_WATCHDOG=y
CONFIG_SOFT_WATCHDOG=y
CONFIG_AUTOFS4_FS=y
CONFIG_MINIX_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set

2
arch/arm/include/asm/mach/time.h
View File

@ -7,8 +7,6 @@
#ifndef __ASM_ARM_MACH_TIME_H
#define __ASM_ARM_MACH_TIME_H
extern void timer_tick(void);
typedef void (*clock_access_fn)(struct timespec64 *);
extern int register_persistent_clock(clock_access_fn read_persistent);

6
arch/arm/kernel/Makefile
View File

@ -17,7 +17,7 @@ CFLAGS_REMOVE_return_address.o = -pg
# Object file lists.
obj-y := elf.o entry-common.o irq.o opcodes.o \
process.o ptrace.o reboot.o \
process.o ptrace.o reboot.o io.o \
setup.o signal.o sigreturn_codes.o \
stacktrace.o sys_arm.o time.o traps.o
@ -83,10 +83,6 @@ AFLAGS_iwmmxt.o := -Wa,-mcpu=iwmmxt
obj-$(CONFIG_ARM_CPU_TOPOLOGY) += topology.o
obj-$(CONFIG_VDSO) += vdso.o
obj-$(CONFIG_EFI) += efi.o
ifneq ($(CONFIG_ARCH_EBSA110),y)
obj-y += io.o
endif
obj-$(CONFIG_PARAVIRT) += paravirt.o
head-y := head$(MMUEXT).o

14
arch/arm/kernel/time.c
View File

@ -60,20 +60,6 @@ unsigned long profile_pc(struct pt_regs *regs)
EXPORT_SYMBOL(profile_pc);
#endif
#ifndef CONFIG_GENERIC_CLOCKEVENTS
/*
* Kernel system timer support.
*/
void timer_tick(void)
{
profile_tick(CPU_PROFILING);
xtime_update(1);
#ifndef CONFIG_SMP
update_process_times(user_mode(get_irq_regs()));
#endif
}
#endif
static void dummy_clock_access(struct timespec64 *ts)
{
ts->tv_sec = 0;

8
arch/arm/mach-ebsa110/Makefile
View File

@ -1,8 +0,0 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for the linux kernel.
#
# Object file lists.
obj-y := core.o io.o leds.o

5
arch/arm/mach-ebsa110/Makefile.boot
View File

@ -1,5 +0,0 @@
# SPDX-License-Identifier: GPL-2.0-only
zreladdr-y += 0x00008000
params_phys-y := 0x00000400
initrd_phys-y := 0x00800000

323
arch/arm/mach-ebsa110/core.c
View File

@ -1,323 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-ebsa110/core.c
*
* Copyright (C) 1998-2001 Russell King
*
* Extra MM routines for the EBSA-110 architecture
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/serial_8250.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/system_misc.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include "core.h"
static void ebsa110_mask_irq(struct irq_data *d)
{
__raw_writeb(1 << d->irq, IRQ_MCLR);
}
static void ebsa110_unmask_irq(struct irq_data *d)
{
__raw_writeb(1 << d->irq, IRQ_MSET);
}
static struct irq_chip ebsa110_irq_chip = {
.irq_ack = ebsa110_mask_irq,
.irq_mask = ebsa110_mask_irq,
.irq_unmask = ebsa110_unmask_irq,
};
static void __init ebsa110_init_irq(void)
{
unsigned long flags;
unsigned int irq;
local_irq_save(flags);
__raw_writeb(0xff, IRQ_MCLR);
__raw_writeb(0x55, IRQ_MSET);
__raw_writeb(0x00, IRQ_MSET);
if (__raw_readb(IRQ_MASK) != 0x55)
while (1);
__raw_writeb(0xff, IRQ_MCLR); /* clear all interrupt enables */
local_irq_restore(flags);
for (irq = 0; irq < NR_IRQS; irq++) {
irq_set_chip_and_handler(irq, &ebsa110_irq_chip,
handle_level_irq);
irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
}
static struct map_desc ebsa110_io_desc[] __initdata = {
/*
* sparse external-decode ISAIO space
*/
{ /* IRQ_STAT/IRQ_MCLR */
.virtual = (unsigned long)IRQ_STAT,
.pfn = __phys_to_pfn(TRICK4_PHYS),
.length = TRICK4_SIZE,
.type = MT_DEVICE
}, { /* IRQ_MASK/IRQ_MSET */
.virtual = (unsigned long)IRQ_MASK,
.pfn = __phys_to_pfn(TRICK3_PHYS),
.length = TRICK3_SIZE,
.type = MT_DEVICE
}, { /* SOFT_BASE */
.virtual = (unsigned long)SOFT_BASE,
.pfn = __phys_to_pfn(TRICK1_PHYS),
.length = TRICK1_SIZE,
.type = MT_DEVICE
}, { /* PIT_BASE */
.virtual = (unsigned long)PIT_BASE,
.pfn = __phys_to_pfn(TRICK0_PHYS),
.length = TRICK0_SIZE,
.type = MT_DEVICE
},
/*
* self-decode ISAIO space
*/
{
.virtual = ISAIO_BASE,
.pfn = __phys_to_pfn(ISAIO_PHYS),
.length = ISAIO_SIZE,
.type = MT_DEVICE
}, {
.virtual = ISAMEM_BASE,
.pfn = __phys_to_pfn(ISAMEM_PHYS),
.length = ISAMEM_SIZE,
.type = MT_DEVICE
}
};
static void __init ebsa110_map_io(void)
{
iotable_init(ebsa110_io_desc, ARRAY_SIZE(ebsa110_io_desc));
}
static void __iomem *ebsa110_ioremap_caller(phys_addr_t cookie, size_t size,
unsigned int flags, void *caller)
{
return (void __iomem *)cookie;
}
static void ebsa110_iounmap(volatile void __iomem *io_addr)
{}
static void __init ebsa110_init_early(void)
{
arch_ioremap_caller = ebsa110_ioremap_caller;
arch_iounmap = ebsa110_iounmap;
}
#define PIT_CTRL (PIT_BASE + 0x0d)
#define PIT_T2 (PIT_BASE + 0x09)
#define PIT_T1 (PIT_BASE + 0x05)
#define PIT_T0 (PIT_BASE + 0x01)
/*
* This is the rate at which your MCLK signal toggles (in Hz)
* This was measured on a 10 digit frequency counter sampling
* over 1 second.
*/
#define MCLK 47894000
/*
* This is the rate at which the PIT timers get clocked
*/
#define CLKBY7 (MCLK / 7)
/*
* This is the counter value. We tick at 200Hz on this platform.
*/
#define COUNT ((CLKBY7 + (HZ / 2)) / HZ)
/*
* Get the time offset from the system PIT. Note that if we have missed an
* interrupt, then the PIT counter will roll over (ie, be negative).
* This actually works out to be convenient.
*/
static u32 ebsa110_gettimeoffset(void)
{
unsigned long offset, count;
__raw_writeb(0x40, PIT_CTRL);
count = __raw_readb(PIT_T1);
count |= __raw_readb(PIT_T1) << 8;
/*
* If count > COUNT, make the number negative.
*/
if (count > COUNT)
count |= 0xffff0000;
offset = COUNT;
offset -= count;
/*
* `offset' is in units of timer counts. Convert
* offset to units of microseconds.
*/
offset = offset * (1000000 / HZ) / COUNT;
return offset * 1000;
}
static irqreturn_t
ebsa110_timer_interrupt(int irq, void *dev_id)
{
u32 count;
/* latch and read timer 1 */
__raw_writeb(0x40, PIT_CTRL);
count = __raw_readb(PIT_T1);
count |= __raw_readb(PIT_T1) << 8;
count += COUNT;
__raw_writeb(count & 0xff, PIT_T1);
__raw_writeb(count >> 8, PIT_T1);
timer_tick();
return IRQ_HANDLED;
}
/*
* Set up timer interrupt.
*/
void __init ebsa110_timer_init(void)
{
int irq = IRQ_EBSA110_TIMER0;
arch_gettimeoffset = ebsa110_gettimeoffset;
/*
* Timer 1, mode 2, LSB/MSB
*/
__raw_writeb(0x70, PIT_CTRL);
__raw_writeb(COUNT & 0xff, PIT_T1);
__raw_writeb(COUNT >> 8, PIT_T1);
if (request_irq(irq, ebsa110_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
"EBSA110 Timer Tick", NULL))
pr_err("Failed to request irq %d (EBSA110 Timer Tick)\n", irq);
}
static struct plat_serial8250_port serial_platform_data[] = {
{
.iobase = 0x3f8,
.irq = 1,
.uartclk = 1843200,
.regshift = 0,
.iotype = UPIO_PORT,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
{
.iobase = 0x2f8,
.irq = 2,
.uartclk = 1843200,
.regshift = 0,
.iotype = UPIO_PORT,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
{ },
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
};
static struct resource am79c961_resources[] = {
{
.start = 0x220,
.end = 0x238,
.flags = IORESOURCE_IO,
}, {
.start = IRQ_EBSA110_ETHERNET,
.end = IRQ_EBSA110_ETHERNET,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device am79c961_device = {
.name = "am79c961",
.id = -1,
.num_resources = ARRAY_SIZE(am79c961_resources),
.resource = am79c961_resources,
};
static struct platform_device *ebsa110_devices[] = {
&serial_device,
&am79c961_device,
};
/*
* EBSA110 idling methodology:
*
* We can not execute the "wait for interrupt" instruction since that
* will stop our MCLK signal (which provides the clock for the glue
* logic, and therefore the timer interrupt).
*
* Instead, we spin, polling the IRQ_STAT register for the occurrence
* of any interrupt with core clock down to the memory clock.
*/
static void ebsa110_idle(void)
{
const char *irq_stat = (char *)0xff000000;
/* disable clock switching */
asm volatile ("mcr p15, 0, ip, c15, c2, 2" : : : "cc");
/* wait for an interrupt to occur */
while (!*irq_stat);
/* enable clock switching */
asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc");
}
static int __init ebsa110_init(void)
{
arm_pm_idle = ebsa110_idle;
return platform_add_devices(ebsa110_devices, ARRAY_SIZE(ebsa110_devices));
}
arch_initcall(ebsa110_init);
static void ebsa110_restart(enum reboot_mode mode, const char *cmd)
{
soft_restart(0x80000000);
}
MACHINE_START(EBSA110, "EBSA110")
/* Maintainer: Russell King */
.atag_offset = 0x400,
.reserve_lp0 = 1,
.reserve_lp2 = 1,
.map_io = ebsa110_map_io,
.init_early = ebsa110_init_early,
.init_irq = ebsa110_init_irq,
.init_time = ebsa110_timer_init,
.restart = ebsa110_restart,
MACHINE_END

38
arch/arm/mach-ebsa110/core.h
View File

@ -1,38 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 1996-2000 Russell King.
*
* This file contains the core hardware definitions of the EBSA-110.
*/
#ifndef CORE_H
#define CORE_H
/* Physical addresses/sizes */
#define ISAMEM_PHYS 0xe0000000
#define ISAMEM_SIZE 0x10000000
#define ISAIO_PHYS 0xf0000000
#define ISAIO_SIZE PGDIR_SIZE
#define TRICK0_PHYS 0xf2000000
#define TRICK0_SIZE PGDIR_SIZE
#define TRICK1_PHYS 0xf2400000
#define TRICK1_SIZE PGDIR_SIZE
#define TRICK2_PHYS 0xf2800000
#define TRICK3_PHYS 0xf2c00000
#define TRICK3_SIZE PGDIR_SIZE
#define TRICK4_PHYS 0xf3000000
#define TRICK4_SIZE PGDIR_SIZE
#define TRICK5_PHYS 0xf3400000
#define TRICK6_PHYS 0xf3800000
#define TRICK7_PHYS 0xf3c00000
/* Virtual addresses */
#define PIT_BASE IOMEM(0xfc000000) /* trick 0 */
#define SOFT_BASE IOMEM(0xfd000000) /* trick 1 */
#define IRQ_MASK IOMEM(0xfe000000) /* trick 3 - read */
#define IRQ_MSET IOMEM(0xfe000000) /* trick 3 - write */
#define IRQ_STAT IOMEM(0xff000000) /* trick 4 - read */
#define IRQ_MCLR IOMEM(0xff000000) /* trick 4 - write */
#endif

33
arch/arm/mach-ebsa110/include/mach/entry-macro.S
View File

@ -1,33 +0,0 @@
/*
* arch/arm/mach-ebsa110/include/mach/entry-macro.S
*
* Low-level IRQ helper macros for ebsa110 platform.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#define IRQ_STAT 0xff000000 /* read */
.macro get_irqnr_preamble, base, tmp
mov \base, #IRQ_STAT
.endm
.macro get_irqnr_and_base, irqnr, stat, base, tmp
ldrb \stat, [\base] @ get interrupts
mov \irqnr, #0
tst \stat, #15
addeq \irqnr, \irqnr, #4
moveq \stat, \stat, lsr #4
tst \stat, #3
addeq \irqnr, \irqnr, #2
moveq \stat, \stat, lsr #2
tst \stat, #1
addeq \irqnr, \irqnr, #1
moveq \stat, \stat, lsr #1
tst \stat, #1 @ bit 0 should be set
.endm

21
arch/arm/mach-ebsa110/include/mach/hardware.h
View File

@ -1,21 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ebsa110/include/mach/hardware.h
*
* Copyright (C) 1996-2000 Russell King.
*
* This file contains the hardware definitions of the EBSA-110.
*/
#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H
#define ISAMEM_BASE 0xe0000000
#define ISAIO_BASE 0xf0000000
/*
* RAM definitions
*/
#define UNCACHEABLE_ADDR 0xff000000 /* IRQ_STAT */
#endif

89
arch/arm/mach-ebsa110/include/mach/io.h
View File

@ -1,89 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ebsa110/include/mach/io.h
*
* Copyright (C) 1997,1998 Russell King
*
* Modifications:
* 06-Dec-1997 RMK Created.
*/
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
u8 __inb8(unsigned int port);
void __outb8(u8 val, unsigned int port);
u8 __inb16(unsigned int port);
void __outb16(u8 val, unsigned int port);
u16 __inw(unsigned int port);
void __outw(u16 val, unsigned int port);
u32 __inl(unsigned int port);
void __outl(u32 val, unsigned int port);
u8 __readb(const volatile void __iomem *addr);
u16 __readw(const volatile void __iomem *addr);
u32 __readl(const volatile void __iomem *addr);
void __writeb(u8 val, volatile void __iomem *addr);
void __writew(u16 val, volatile void __iomem *addr);
void __writel(u32 val, volatile void __iomem *addr);
/*
* Argh, someone forgot the IOCS16 line. We therefore have to handle
* the byte stearing by selecting the correct byte IO functions here.
*/
#ifdef ISA_SIXTEEN_BIT_PERIPHERAL
#define inb(p) __inb16(p)
#define outb(v,p) __outb16(v,p)
#else
#define inb(p) __inb8(p)
#define outb(v,p) __outb8(v,p)
#endif
#define inw(p) __inw(p)
#define outw(v,p) __outw(v,p)
#define inl(p) __inl(p)
#define outl(v,p) __outl(v,p)
#define readb(b) __readb(b)
#define readw(b) __readw(b)
#define readl(b) __readl(b)
#define readb_relaxed(addr) readb(addr)
#define readw_relaxed(addr) readw(addr)
#define readl_relaxed(addr) readl(addr)
#define writeb(v,b) __writeb(v,b)
#define writew(v,b) __writew(v,b)
#define writel(v,b) __writel(v,b)
#define insb insb
extern void insb(unsigned int port, void *buf, int sz);
#define insw insw
extern void insw(unsigned int port, void *buf, int sz);
#define insl insl
extern void insl(unsigned int port, void *buf, int sz);
#define outsb outsb
extern void outsb(unsigned int port, const void *buf, int sz);
#define outsw outsw
extern void outsw(unsigned int port, const void *buf, int sz);
#define outsl outsl
extern void outsl(unsigned int port, const void *buf, int sz);
/* can't support writesb atm */
#define writesw writesw
extern void writesw(volatile void __iomem *addr, const void *data, int wordlen);
#define writesl writesl
extern void writesl(volatile void __iomem *addr, const void *data, int longlen);
/* can't support readsb atm */
#define readsw readsw
extern void readsw(const volatile void __iomem *addr, void *data, int wordlen);
#define readsl readsl
extern void readsl(const volatile void __iomem *addr, void *data, int longlen);
#endif

17
arch/arm/mach-ebsa110/include/mach/irqs.h
View File

@ -1,17 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ebsa110/include/mach/irqs.h
*
* Copyright (C) 1996 Russell King
*/
#define NR_IRQS 8
#define IRQ_EBSA110_PRINTER 0
#define IRQ_EBSA110_COM1 1
#define IRQ_EBSA110_COM2 2
#define IRQ_EBSA110_ETHERNET 3
#define IRQ_EBSA110_TIMER0 4
#define IRQ_EBSA110_TIMER1 5
#define IRQ_EBSA110_PCMCIA 6
#define IRQ_EBSA110_IMMEDIATE 7

22
arch/arm/mach-ebsa110/include/mach/memory.h
View File

@ -1,22 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ebsa110/include/mach/memory.h
*
* Copyright (C) 1996-1999 Russell King.
*
* Changelog:
* 20-Oct-1996 RMK Created
* 31-Dec-1997 RMK Fixed definitions to reduce warnings
* 21-Mar-1999 RMK Renamed to memory.h
* RMK Moved TASK_SIZE and PAGE_OFFSET here
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Cache flushing area - SRAM
*/
#define FLUSH_BASE_PHYS 0x40000000
#define FLUSH_BASE 0xdf000000
#endif

41
arch/arm/mach-ebsa110/include/mach/uncompress.h
View File

@ -1,41 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/mach-ebsa110/include/mach/uncompress.h
*
* Copyright (C) 1996,1997,1998 Russell King
*/
#include <linux/serial_reg.h>
#define SERIAL_BASE ((unsigned char *)0xf0000be0)
/*
* This does not append a newline
*/
static inline void putc(int c)
{
unsigned char v, *base = SERIAL_BASE;
do {
v = base[UART_LSR << 2];
barrier();
} while (!(v & UART_LSR_THRE));
base[UART_TX << 2] = c;
}
static inline void flush(void)
{
unsigned char v, *base = SERIAL_BASE;
do {
v = base[UART_LSR << 2];
barrier();
} while ((v & (UART_LSR_TEMT|UART_LSR_THRE)) !=
(UART_LSR_TEMT|UART_LSR_THRE));
}
/*
* nothing to do
*/
#define arch_decomp_setup()

440
arch/arm/mach-ebsa110/io.c
View File

@ -1,440 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/arm/mach-ebsa110/isamem.c
*
* Copyright (C) 2001 Russell King
*
* Perform "ISA" memory and IO accesses. The EBSA110 has some "peculiarities"
* in the way it handles accesses to odd IO ports on 16-bit devices. These
* devices have their D0-D15 lines connected to the processors D0-D15 lines.
* Since they expect all byte IO operations to be performed on D0-D7, and the
* StrongARM expects to transfer the byte to these odd addresses on D8-D15,
* we must use a trick to get the required behaviour.
*
* The trick employed here is to use long word stores to odd address -1. The
* glue logic picks this up as a "trick" access, and asserts the LSB of the
* peripherals address bus, thereby accessing the odd IO port. Meanwhile, the
* StrongARM transfers its data on D0-D7 as expected.
*
* Things get more interesting on the pass-1 EBSA110 - the PCMCIA controller
* wiring was screwed in such a way that it had limited memory space access.
* Luckily, the work-around for this is not too horrible. See
* __isamem_convert_addr for the details.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/page.h>
static void __iomem *__isamem_convert_addr(const volatile void __iomem *addr)
{
u32 ret, a = (u32 __force) addr;
/*
* The PCMCIA controller is wired up as follows:
* +---------+---------+---------+---------+---------+---------+
* PCMCIA | 2 2 2 2 | 1 1 1 1 | 1 1 1 1 | 1 1 | | |
* | 3 2 1 0 | 9 8 7 6 | 5 4 3 2 | 1 0 9 8 | 7 6 5 4 | 3 2 1 0 |
* +---------+---------+---------+---------+---------+---------+
* CPU | 2 2 2 2 | 2 1 1 1 | 1 1 1 1 | 1 1 1 | | |
* | 4 3 2 1 | 0 9 9 8 | 7 6 5 4 | 3 2 0 9 | 8 7 6 5 | 4 3 2 x |
* +---------+---------+---------+---------+---------+---------+
*
* This means that we can access PCMCIA regions as follows:
* 0x*10000 -> 0x*1ffff
* 0x*70000 -> 0x*7ffff
* 0x*90000 -> 0x*9ffff
* 0x*f0000 -> 0x*fffff
*/
ret = (a & 0xf803fe) << 1;
ret |= (a & 0x03fc00) << 2;
ret += 0xe8000000;
if ((a & 0x20000) == (a & 0x40000) >> 1)
return (void __iomem *)ret;
BUG();
return NULL;
}
/*
* read[bwl] and write[bwl]
*/
u8 __readb(const volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
u32 ret;
if ((unsigned long)addr & 1)
ret = __raw_readl(a);
else
ret = __raw_readb(a);
return ret;
}
u16 __readw(const volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
if ((unsigned long)addr & 1)
BUG();
return __raw_readw(a);
}
u32 __readl(const volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
u32 ret;
if ((unsigned long)addr & 3)
BUG();
ret = __raw_readw(a);
ret |= __raw_readw(a + 4) << 16;
return ret;
}
EXPORT_SYMBOL(__readb);
EXPORT_SYMBOL(__readw);
EXPORT_SYMBOL(__readl);
void readsw(const volatile void __iomem *addr, void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
BUG_ON((unsigned long)addr & 1);
__raw_readsw(a, data, len);
}
EXPORT_SYMBOL(readsw);
void readsl(const volatile void __iomem *addr, void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
BUG_ON((unsigned long)addr & 3);
__raw_readsl(a, data, len);
}
EXPORT_SYMBOL(readsl);
void __writeb(u8 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
if ((unsigned long)addr & 1)
__raw_writel(val, a);
else
__raw_writeb(val, a);
}
void __writew(u16 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
if ((unsigned long)addr & 1)
BUG();
__raw_writew(val, a);
}
void __writel(u32 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
if ((unsigned long)addr & 3)
BUG();
__raw_writew(val, a);
__raw_writew(val >> 16, a + 4);
}
EXPORT_SYMBOL(__writeb);
EXPORT_SYMBOL(__writew);
EXPORT_SYMBOL(__writel);
void writesw(volatile void __iomem *addr, const void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
BUG_ON((unsigned long)addr & 1);
__raw_writesw(a, data, len);
}
EXPORT_SYMBOL(writesw);
void writesl(volatile void __iomem *addr, const void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
BUG_ON((unsigned long)addr & 3);
__raw_writesl(a, data, len);
}
EXPORT_SYMBOL(writesl);
/*
* The EBSA110 has a weird "ISA IO" region:
*
* Region 0 (addr = 0xf0000000 + io << 2)
* --------------------------------------------------------
* Physical region IO region
* f0000fe0 - f0000ffc 3f8 - 3ff ttyS0
* f0000e60 - f0000e64 398 - 399
* f0000de0 - f0000dfc 378 - 37f lp0
* f0000be0 - f0000bfc 2f8 - 2ff ttyS1
*
* Region 1 (addr = 0xf0000000 + (io & ~1) << 1 + (io & 1))
* --------------------------------------------------------
* Physical region IO region
* f00014f1 a79 pnp write data
* f00007c0 - f00007c1 3e0 - 3e1 pcmcia
* f00004f1 279 pnp address
* f0000440 - f000046c 220 - 236 eth0
* f0000405 203 pnp read data
*/
#define SUPERIO_PORT(p) \
(((p) >> 3) == (0x3f8 >> 3) || \
((p) >> 3) == (0x2f8 >> 3) || \
((p) >> 3) == (0x378 >> 3))
/*
* We're addressing an 8 or 16-bit peripheral which tranfers
* odd addresses on the low ISA byte lane.
*/
u8 __inb8(unsigned int port)
{
u32 ret;
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
ret = __raw_readb((void __iomem *)ISAIO_BASE + (port << 2));
else {
void __iomem *a = (void __iomem *)ISAIO_BASE + ((port & ~1) << 1);
/*
* Shame nothing else does
*/
if (port & 1)
ret = __raw_readl(a);
else
ret = __raw_readb(a);
}
return ret;
}
/*
* We're addressing a 16-bit peripheral which transfers odd
* addresses on the high ISA byte lane.
*/
u8 __inb16(unsigned int port)
{
unsigned int offset;
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
offset = port << 2;
else
offset = (port & ~1) << 1 | (port & 1);
return __raw_readb((void __iomem *)ISAIO_BASE + offset);
}
u16 __inw(unsigned int port)
{
unsigned int offset;
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
offset = port << 2;
else {
offset = port << 1;
BUG_ON(port & 1);
}
return __raw_readw((void __iomem *)ISAIO_BASE + offset);
}
/*
* Fake a 32-bit read with two 16-bit reads. Needed for 3c589.
*/
u32 __inl(unsigned int port)
{
void __iomem *a;
if (SUPERIO_PORT(port) || port & 3)
BUG();
a = (void __iomem *)ISAIO_BASE + ((port & ~1) << 1);
return __raw_readw(a) | __raw_readw(a + 4) << 16;
}
EXPORT_SYMBOL(__inb8);
EXPORT_SYMBOL(__inb16);
EXPORT_SYMBOL(__inw);
EXPORT_SYMBOL(__inl);
void __outb8(u8 val, unsigned int port)
{
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
__raw_writeb(val, (void __iomem *)ISAIO_BASE + (port << 2));
else {
void __iomem *a = (void __iomem *)ISAIO_BASE + ((port & ~1) << 1);
/*
* Shame nothing else does
*/
if (port & 1)
__raw_writel(val, a);
else
__raw_writeb(val, a);
}
}
void __outb16(u8 val, unsigned int port)
{
unsigned int offset;
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
offset = port << 2;
else
offset = (port & ~1) << 1 | (port & 1);
__raw_writeb(val, (void __iomem *)ISAIO_BASE + offset);
}
void __outw(u16 val, unsigned int port)
{
unsigned int offset;
/*
* The SuperIO registers use sane addressing techniques...
*/
if (SUPERIO_PORT(port))
offset = port << 2;
else {
offset = port << 1;
BUG_ON(port & 1);
}
__raw_writew(val, (void __iomem *)ISAIO_BASE + offset);
}
void __outl(u32 val, unsigned int port)
{
BUG();
}
EXPORT_SYMBOL(__outb8);
EXPORT_SYMBOL(__outb16);
EXPORT_SYMBOL(__outw);
EXPORT_SYMBOL(__outl);
void outsb(unsigned int port, const void *from, int len)
{
u32 off;
if (SUPERIO_PORT(port))
off = port << 2;
else {
off = (port & ~1) << 1;
if (port & 1)
BUG();
}
__raw_writesb((void __iomem *)ISAIO_BASE + off, from, len);
}
void insb(unsigned int port, void *from, int len)
{
u32 off;
if (SUPERIO_PORT(port))
off = port << 2;
else {
off = (port & ~1) << 1;
if (port & 1)
BUG();
}
__raw_readsb((void __iomem *)ISAIO_BASE + off, from, len);
}
EXPORT_SYMBOL(outsb);
EXPORT_SYMBOL(insb);
void outsw(unsigned int port, const void *from, int len)
{
u32 off;
if (SUPERIO_PORT(port))
off = port << 2;
else {
off = (port & ~1) << 1;
if (port & 1)
BUG();
}
__raw_writesw((void __iomem *)ISAIO_BASE + off, from, len);
}
void insw(unsigned int port, void *from, int len)
{
u32 off;
if (SUPERIO_PORT(port))
off = port << 2;
else {
off = (port & ~1) << 1;
if (port & 1)
BUG();
}
__raw_readsw((void __iomem *)ISAIO_BASE + off, from, len);
}
EXPORT_SYMBOL(outsw);
EXPORT_SYMBOL(insw);
/*
* We implement these as 16-bit insw/outsw, mainly for
* 3c589 cards.
*/
void outsl(unsigned int port, const void *from, int len)
{
u32 off = port << 1;
if (SUPERIO_PORT(port) || port & 3)
BUG();
__raw_writesw((void __iomem *)ISAIO_BASE + off, from, len << 1);
}
void insl(unsigned int port, void *from, int len)
{
u32 off = port << 1;
if (SUPERIO_PORT(port) || port & 3)
BUG();
__raw_readsw((void __iomem *)ISAIO_BASE + off, from, len << 1);
}
EXPORT_SYMBOL(outsl);
EXPORT_SYMBOL(insl);

71
arch/arm/mach-ebsa110/leds.c
View File

@ -1,71 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for the LED found on the EBSA110 machine
* Based on Versatile and RealView machine LED code
*
* Author: Bryan Wu <bryan.wu@canonical.com>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include "core.h"
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
static void ebsa110_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
u8 reg = __raw_readb(SOFT_BASE);
if (b != LED_OFF)
reg |= 0x80;
else
reg &= ~0x80;
__raw_writeb(reg, SOFT_BASE);
}
static enum led_brightness ebsa110_led_get(struct led_classdev *cdev)
{
u8 reg = __raw_readb(SOFT_BASE);
return (reg & 0x80) ? LED_FULL : LED_OFF;
}
static int __init ebsa110_leds_init(void)
{
struct led_classdev *cdev;
int ret;
if (!machine_is_ebsa110())
return -ENODEV;
cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
if (!cdev)
return -ENOMEM;
cdev->name = "ebsa110:0";
cdev->brightness_set = ebsa110_led_set;
cdev->brightness_get = ebsa110_led_get;
cdev->default_trigger = "heartbeat";
ret = led_classdev_register(NULL, cdev);
if (ret < 0) {
kfree(cdev);
return ret;
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(ebsa110_leds_init);
#endif

2
arch/arm/mach-rpc/time.c
View File

@ -81,7 +81,7 @@ static irqreturn_t
ioc_timer_interrupt(int irq, void *dev_id)
{
ioc_time += RPC_LATCH;
timer_tick();
legacy_timer_tick(1);
return IRQ_HANDLED;
}

1
arch/arm64/Kconfig
View File

@ -103,7 +103,6 @@ config ARM64
select FRAME_POINTER
select GENERIC_ALLOCATOR
select GENERIC_ARCH_TOPOLOGY
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_VULNERABILITIES

1
arch/arm64/Kconfig.platforms
View File

@ -257,7 +257,6 @@ config ARCH_TEGRA
select ARM_GIC_PM
select CLKSRC_MMIO
select TIMER_OF
select GENERIC_CLOCKEVENTS
select GPIOLIB
select PINCTRL
select PM

1
arch/c6x/Kconfig
View File

@ -19,7 +19,6 @@ config C6X
select IRQ_DOMAIN
select OF
select OF_EARLY_FLATTREE
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
select MMU_GATHER_NO_RANGE if MMU
select SET_FS

1
arch/csky/Kconfig
View File

@ -28,7 +28,6 @@ config CSKY
select GENERIC_LIB_UCMPDI2
select GENERIC_ALLOCATOR
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_PROBE

1
arch/h8300/Kconfig
View File

@ -12,7 +12,6 @@ config H8300
select FRAME_POINTER
select GENERIC_CPU_DEVICES
select MODULES_USE_ELF_RELA
select GENERIC_CLOCKEVENTS
select COMMON_CLK
select ARCH_WANT_FRAME_POINTERS
select OF

1
arch/hexagon/Kconfig
View File

@ -27,7 +27,6 @@ config HEXAGON
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD
select STACKTRACE_SUPPORT
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
select MODULES_USE_ELF_RELA
select GENERIC_CPU_DEVICES

1
arch/ia64/Kconfig
View File

@ -46,6 +46,7 @@ config IA64
select ARCH_THREAD_STACK_ALLOCATOR
select ARCH_CLOCKSOURCE_DATA
select GENERIC_TIME_VSYSCALL
select LEGACY_TIMER_TICK
select SWIOTLB
select SYSCTL_ARCH_UNALIGN_NO_WARN
select HAVE_MOD_ARCH_SPECIFIC

38
arch/ia64/kernel/time.c
View File

@ -171,40 +171,30 @@ void vtime_account_hardirq(struct task_struct *tsk)
static irqreturn_t
timer_interrupt (int irq, void *dev_id)
{
unsigned long new_itm;
unsigned long cur_itm, new_itm, ticks;
if (cpu_is_offline(smp_processor_id())) {
return IRQ_HANDLED;
}
new_itm = local_cpu_data->itm_next;
cur_itm = ia64_get_itc();
if (!time_after(ia64_get_itc(), new_itm))
if (!time_after(cur_itm, new_itm)) {
printk(KERN_ERR "Oops: timer tick before it's due (itc=%lx,itm=%lx)\n",
ia64_get_itc(), new_itm);
profile_tick(CPU_PROFILING);
while (1) {
update_process_times(user_mode(get_irq_regs()));
new_itm += local_cpu_data->itm_delta;
if (smp_processor_id() == time_keeper_id)
xtime_update(1);
local_cpu_data->itm_next = new_itm;
if (time_after(new_itm, ia64_get_itc()))
break;
/*
* Allow IPIs to interrupt the timer loop.
*/
local_irq_enable();
local_irq_disable();
cur_itm, new_itm);
ticks = 1;
} else {
ticks = DIV_ROUND_UP(cur_itm - new_itm,
local_cpu_data->itm_delta);
new_itm += ticks * local_cpu_data->itm_delta;
}
if (smp_processor_id() != time_keeper_id)
ticks = 0;
legacy_timer_tick(ticks);
do {
/*
* If we're too close to the next clock tick for

7
arch/m68k/68000/timers.c
View File

@ -52,7 +52,6 @@
#endif
static u32 m68328_tick_cnt;
static irq_handler_t timer_interrupt;
/***************************************************************************/
@ -62,7 +61,8 @@ static irqreturn_t hw_tick(int irq, void *dummy)
TSTAT &= 0;
m68328_tick_cnt += TICKS_PER_JIFFY;
return timer_interrupt(irq, dummy);
legacy_timer_tick(1);
return IRQ_HANDLED;
}
/***************************************************************************/
@ -91,7 +91,7 @@ static struct clocksource m68328_clk = {
/***************************************************************************/
void hw_timer_init(irq_handler_t handler)
void hw_timer_init(void)
{
int ret;
@ -113,7 +113,6 @@ void hw_timer_init(irq_handler_t handler)
/* Enable timer 1 */
TCTL |= TCTL_TEN;
clocksource_register_hz(&m68328_clk, TICKS_PER_JIFFY*HZ);
timer_interrupt = handler;
}
/***************************************************************************/

37
arch/m68k/Kconfig.cpu
View File

@ -105,6 +105,7 @@ config M68060
config M68328
bool "MC68328"
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
help
Motorola 68328 processor support.
@ -112,6 +113,7 @@ config M68328
config M68EZ328
bool "MC68EZ328"
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
help
Motorola 68EX328 processor support.
@ -119,6 +121,7 @@ config M68EZ328
config M68VZ328
bool "MC68VZ328"
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
help
Motorola 68VZ328 processor support.
@ -138,6 +141,7 @@ config M5206
bool "MCF5206"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
help
@ -147,6 +151,7 @@ config M5206e
bool "MCF5206e"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
help
@ -155,7 +160,7 @@ config M5206e
config M520x
bool "MCF520x"
depends on !MMU
select GENERIC_CLOCKEVENTS
select COLDFIRE_PIT_TIMER
select HAVE_CACHE_SPLIT
help
Freescale Coldfire 5207/5208 processor support.
@ -163,7 +168,7 @@ config M520x
config M523x
bool "MCF523x"
depends on !MMU
select GENERIC_CLOCKEVENTS
select COLDFIRE_PIT_TIMER
select HAVE_CACHE_SPLIT
select HAVE_IPSBAR
help
@ -173,6 +178,7 @@ config M5249
bool "MCF5249"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
help
@ -182,6 +188,7 @@ config M525x
bool "MCF525x"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
help
@ -190,10 +197,10 @@ config M525x
config M5271
bool "MCF5271"
depends on !MMU
select COLDFIRE_PIT_TIMER
select M527x
select HAVE_CACHE_SPLIT
select HAVE_IPSBAR
select GENERIC_CLOCKEVENTS
help
Freescale (Motorola) ColdFire 5270/5271 processor support.
@ -201,6 +208,7 @@ config M5272
bool "MCF5272"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
help
@ -209,17 +217,17 @@ config M5272
config M5275
bool "MCF5275"
depends on !MMU
select COLDFIRE_PIT_TIMER
select M527x
select HAVE_CACHE_SPLIT
select HAVE_IPSBAR
select GENERIC_CLOCKEVENTS
help
Freescale (Motorola) ColdFire 5274/5275 processor support.
config M528x
bool "MCF528x"
depends on !MMU
select GENERIC_CLOCKEVENTS
select COLDFIRE_PIT_TIMER
select HAVE_CACHE_SPLIT
select HAVE_IPSBAR
help
@ -228,6 +236,7 @@ config M528x
config M5307
bool "MCF5307"
depends on !MMU
select COLDFIRE_TIMERS
select COLDFIRE_SW_A7
select HAVE_CACHE_CB
select HAVE_MBAR
@ -238,6 +247,7 @@ config M5307
config M532x
bool "MCF532x"
depends on !MMU
select COLDFIRE_TIMERS
select M53xx
select HAVE_CACHE_CB
help
@ -246,6 +256,7 @@ config M532x
config M537x
bool "MCF537x"
depends on !MMU
select COLDFIRE_TIMERS
select M53xx
select HAVE_CACHE_CB
help
@ -255,6 +266,7 @@ config M5407
bool "MCF5407"
depends on !MMU
select COLDFIRE_SW_A7
select COLDFIRE_TIMERS
select HAVE_CACHE_CB
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
@ -264,6 +276,7 @@ config M5407
config M547x
bool "MCF547x"
select M54xx
select COLDFIRE_SLTIMERS
select MMU_COLDFIRE if MMU
select FPU if MMU
select HAVE_CACHE_CB
@ -274,6 +287,7 @@ config M547x
config M548x
bool "MCF548x"
select COLDFIRE_SLTIMERS
select MMU_COLDFIRE if MMU
select FPU if MMU
select M54xx
@ -285,8 +299,8 @@ config M548x
config M5441x
bool "MCF5441x"
select COLDFIRE_PIT_TIMER
select MMU_COLDFIRE if MMU
select GENERIC_CLOCKEVENTS
select HAVE_CACHE_CB
help
Freescale Coldfire 54410/54415/54416/54417/54418 processor support.
@ -303,6 +317,17 @@ config M54xx
select HAVE_PCI
bool
config COLDFIRE_PIT_TIMER
bool
config COLDFIRE_TIMERS
bool
select LEGACY_TIMER_TICK
config COLDFIRE_SLTIMERS
bool
select LEGACY_TIMER_TICK
endif # COLDFIRE

11
arch/m68k/Kconfig.machine
View File

@ -7,6 +7,7 @@ config AMIGA
bool "Amiga support"
depends on MMU
select MMU_MOTOROLA if MMU
select LEGACY_TIMER_TICK
help
This option enables support for the Amiga series of computers. If
you plan to use this kernel on an Amiga, say Y here and browse the
@ -17,6 +18,7 @@ config ATARI
depends on MMU
select MMU_MOTOROLA if MMU
select HAVE_ARCH_NVRAM_OPS
select LEGACY_TIMER_TICK
help
This option enables support for the 68000-based Atari series of
computers (including the TT, Falcon and Medusa). If you plan to use
@ -28,6 +30,7 @@ config MAC
depends on MMU
select MMU_MOTOROLA if MMU
select HAVE_ARCH_NVRAM_OPS
select LEGACY_TIMER_TICK
help
This option enables support for the Apple Macintosh series of
computers. If you plan to use this kernel on a Mac, say Y here and
@ -38,6 +41,7 @@ config APOLLO
bool "Apollo support"
depends on MMU
select MMU_MOTOROLA if MMU
select LEGACY_TIMER_TICK
help
Say Y here if you want to run Linux on an MC680x0-based Apollo
Domain workstation such as the DN3500.
@ -56,6 +60,7 @@ config MVME147
bool "MVME147 support"
depends on MMU
depends on VME
select LEGACY_TIMER_TICK
help
Say Y to include support for early Motorola VME boards. This will
build a kernel which can run on MVME147 single-board computers. If
@ -66,6 +71,7 @@ config MVME16x
bool "MVME162, 166 and 167 support"
depends on MMU
depends on VME
select LEGACY_TIMER_TICK
help
Say Y to include support for Motorola VME boards. This will build a
kernel which can run on MVME162, MVME166, MVME167, MVME172, and
@ -77,6 +83,7 @@ config BVME6000
bool "BVME4000 and BVME6000 support"
depends on MMU
depends on VME
select LEGACY_TIMER_TICK
help
Say Y to include support for VME boards from BVM Ltd. This will
build a kernel which can run on BVME4000 and BVME6000 boards. If
@ -87,6 +94,7 @@ config HP300
bool "HP9000/300 and HP9000/400 support"
depends on MMU
select MMU_MOTOROLA if MMU
select LEGACY_TIMER_TICK
help
This option enables support for the HP9000/300 and HP9000/400 series
of workstations. Support for these machines is still somewhat
@ -97,6 +105,7 @@ config HP300
config SUN3X
bool "Sun3x support"
depends on MMU
select LEGACY_TIMER_TICK
select MMU_MOTOROLA if MMU
select M68030
help
@ -112,6 +121,7 @@ config Q40
bool "Q40/Q60 support"
depends on MMU
select MMU_MOTOROLA if MMU
select LEGACY_TIMER_TICK
help
The Q40 is a Motorola 68040-based successor to the Sinclair QL
manufactured in Germany. There is an official Q40 home page at
@ -124,6 +134,7 @@ config SUN3
depends on MMU
depends on !MMU_MOTOROLA
select MMU_SUN3 if MMU
select LEGACY_TIMER_TICK
select NO_DMA
select M68020
help

11
arch/m68k/amiga/config.c
View File

@ -92,7 +92,7 @@ static char *amiga_models[] __initdata = {
static char amiga_model_name[13] = "Amiga ";
static void amiga_sched_init(irq_handler_t handler);
static void amiga_sched_init(void);
static void amiga_get_model(char *model);
static void amiga_get_hardware_list(struct seq_file *m);
extern void amiga_mksound(unsigned int count, unsigned int ticks);
@ -467,16 +467,15 @@ static u32 clk_total, clk_offset;
static irqreturn_t ciab_timer_handler(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
clk_total += jiffy_ticks;
clk_offset = 0;
timer_routine(0, NULL);
legacy_timer_tick(1);
timer_heartbeat();
return IRQ_HANDLED;
}
static void __init amiga_sched_init(irq_handler_t timer_routine)
static void __init amiga_sched_init(void)
{
static struct resource sched_res = {
.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
@ -495,7 +494,7 @@ static void __init amiga_sched_init(irq_handler_t timer_routine)
* SCSI code. We'll have to take a look at this later
*/
if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER,
"timer", timer_routine))
"timer", NULL))
pr_err("Couldn't register timer interrupt\n");
/* start timer */
ciab.cra |= 0x11;

11
arch/m68k/apollo/config.c
View File

@ -26,7 +26,7 @@ u_long cpuctrl_physaddr;
u_long timer_physaddr;
u_long apollo_model;
extern void dn_sched_init(irq_handler_t handler);
extern void dn_sched_init(void);
extern void dn_init_IRQ(void);
extern int dn_dummy_hwclk(int, struct rtc_time *);
extern void dn_dummy_reset(void);
@ -167,11 +167,10 @@ void __init config_apollo(void)
irqreturn_t dn_timer_int(int irq, void *dev_id)
{
irq_handler_t timer_handler = dev_id;
volatile unsigned char x;
timer_handler(irq, dev_id);
legacy_timer_tick(1);
timer_heartbeat();
x = *(volatile unsigned char *)(apollo_timer + 3);
x = *(volatile unsigned char *)(apollo_timer + 5);
@ -179,7 +178,7 @@ irqreturn_t dn_timer_int(int irq, void *dev_id)
return IRQ_HANDLED;
}
void dn_sched_init(irq_handler_t timer_routine)
void dn_sched_init(void)
{
/* program timer 1 */
*(volatile unsigned char *)(apollo_timer + 3) = 0x01;
@ -197,7 +196,7 @@ void dn_sched_init(irq_handler_t timer_routine)
*(volatile unsigned char *)(apollo_timer + 0x3));
#endif
if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", NULL))
pr_err("Couldn't register timer interrupt\n");
}

2
arch/m68k/atari/config.c
View File

@ -77,7 +77,7 @@ static void atari_heartbeat(int on);
#endif
/* atari specific timer functions (in time.c) */
extern void atari_sched_init(irq_handler_t);
extern void atari_sched_init(void);
extern int atari_mste_hwclk (int, struct rtc_time *);
extern int atari_tt_hwclk (int, struct rtc_time *);

9
arch/m68k/atari/time.c
View File

@ -21,6 +21,7 @@
#include <linux/export.h>
#include <asm/atariints.h>
#include <asm/machdep.h>
DEFINE_SPINLOCK(rtc_lock);
EXPORT_SYMBOL_GPL(rtc_lock);
@ -40,7 +41,6 @@ static u8 last_timer_count;
static irqreturn_t mfp_timer_c_handler(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
local_irq_save(flags);
@ -48,14 +48,15 @@ static irqreturn_t mfp_timer_c_handler(int irq, void *dev_id)
last_timer_count = st_mfp.tim_dt_c;
} while (last_timer_count == 1);
clk_total += INT_TICKS;
timer_routine(0, NULL);
legacy_timer_tick(1);
timer_heartbeat();
local_irq_restore(flags);
return IRQ_HANDLED;
}
void __init
atari_sched_init(irq_handler_t timer_routine)
atari_sched_init(void)
{
/* set Timer C data Register */
st_mfp.tim_dt_c = INT_TICKS;
@ -63,7 +64,7 @@ atari_sched_init(irq_handler_t timer_routine)
st_mfp.tim_ct_cd = (st_mfp.tim_ct_cd & 15) | 0x60;
/* install interrupt service routine for MFP Timer C */
if (request_irq(IRQ_MFP_TIMC, mfp_timer_c_handler, IRQF_TIMER, "timer",
timer_routine))
NULL))
pr_err("Couldn't register timer interrupt\n");
clocksource_register_hz(&atari_clk, INT_CLK);

9
arch/m68k/bvme6000/config.c
View File

@ -38,7 +38,7 @@
#include <asm/bvme6000hw.h>
static void bvme6000_get_model(char *model);
extern void bvme6000_sched_init(irq_handler_t handler);
extern void bvme6000_sched_init(void);
extern int bvme6000_hwclk (int, struct rtc_time *);
extern void bvme6000_reset (void);
void bvme6000_set_vectors (void);
@ -164,7 +164,6 @@ static u32 clk_total, clk_offset;
static irqreturn_t bvme6000_timer_int (int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE;
unsigned char msr;
@ -174,7 +173,7 @@ static irqreturn_t bvme6000_timer_int (int irq, void *dev_id)
rtc->msr = msr | 0x20; /* Ack the interrupt */
clk_total += RTC_TIMER_CYCLES;
clk_offset = 0;
timer_routine(0, NULL);
legacy_timer_tick(1);
local_irq_restore(flags);
return IRQ_HANDLED;
@ -189,7 +188,7 @@ static irqreturn_t bvme6000_timer_int (int irq, void *dev_id)
* so divide by 8 to get the microsecond result.
*/
void bvme6000_sched_init (irq_handler_t timer_routine)
void bvme6000_sched_init (void)
{
volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE;
unsigned char msr = rtc->msr & 0xc0;
@ -197,7 +196,7 @@ void bvme6000_sched_init (irq_handler_t timer_routine)
rtc->msr = 0; /* Ensure timer registers accessible */
if (request_irq(BVME_IRQ_RTC, bvme6000_timer_int, IRQF_TIMER, "timer",
timer_routine))
NULL))
panic ("Couldn't register timer int");
rtc->t1cr_omr = 0x04; /* Mode 2, ext clk */

32
arch/m68k/coldfire/Makefile
View File

@ -16,20 +16,24 @@
asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
obj-$(CONFIG_COLDFIRE) += cache.o clk.o device.o dma.o entry.o vectors.o
obj-$(CONFIG_M5206) += m5206.o timers.o intc.o reset.o
obj-$(CONFIG_M5206e) += m5206.o timers.o intc.o reset.o
obj-$(CONFIG_M520x) += m520x.o pit.o intc-simr.o reset.o
obj-$(CONFIG_M523x) += m523x.o pit.o dma_timer.o intc-2.o reset.o
obj-$(CONFIG_M5249) += m5249.o timers.o intc.o intc-5249.o reset.o
obj-$(CONFIG_M525x) += m525x.o timers.o intc.o intc-525x.o reset.o
obj-$(CONFIG_M527x) += m527x.o pit.o intc-2.o reset.o
obj-$(CONFIG_M5272) += m5272.o intc-5272.o timers.o
obj-$(CONFIG_M528x) += m528x.o pit.o intc-2.o reset.o
obj-$(CONFIG_M5307) += m5307.o timers.o intc.o reset.o
obj-$(CONFIG_M53xx) += m53xx.o timers.o intc-simr.o reset.o
obj-$(CONFIG_M5407) += m5407.o timers.o intc.o reset.o
obj-$(CONFIG_M54xx) += m54xx.o sltimers.o intc-2.o
obj-$(CONFIG_M5441x) += m5441x.o pit.o intc-simr.o reset.o
obj-$(CONFIG_M5206) += m5206.o intc.o reset.o
obj-$(CONFIG_M5206e) += m5206.o intc.o reset.o
obj-$(CONFIG_M520x) += m520x.o intc-simr.o reset.o
obj-$(CONFIG_M523x) += m523x.o dma_timer.o intc-2.o reset.o
obj-$(CONFIG_M5249) += m5249.o intc.o intc-5249.o reset.o
obj-$(CONFIG_M525x) += m525x.o intc.o intc-525x.o reset.o
obj-$(CONFIG_M527x) += m527x.o intc-2.o reset.o
obj-$(CONFIG_M5272) += m5272.o intc-5272.o
obj-$(CONFIG_M528x) += m528x.o intc-2.o reset.o
obj-$(CONFIG_M5307) += m5307.o intc.o reset.o
obj-$(CONFIG_M53xx) += m53xx.o intc-simr.o reset.o
obj-$(CONFIG_M5407) += m5407.o intc.o reset.o
obj-$(CONFIG_M54xx) += m54xx.o intc-2.o
obj-$(CONFIG_M5441x) += m5441x.o intc-simr.o reset.o
obj-$(CONFIG_COLDFIRE_PIT_TIMER) += pit.o
obj-$(CONFIG_COLDFIRE_TIMERS) += timers.o
obj-$(CONFIG_COLDFIRE_SLTIMERS) += sltimers.o
obj-$(CONFIG_NETtel) += nettel.o
obj-$(CONFIG_CLEOPATRA) += nettel.o

2
arch/m68k/coldfire/pit.c
View File

@ -136,7 +136,7 @@ static struct clocksource pit_clk = {
/***************************************************************************/
void hw_timer_init(irq_handler_t handler)
void hw_timer_init(void)
{
int ret;

8
arch/m68k/coldfire/sltimers.c
View File

@ -83,14 +83,13 @@ void mcfslt_profile_init(void)
static u32 mcfslt_cycles_per_jiffy;
static u32 mcfslt_cnt;
static irq_handler_t timer_interrupt;
static irqreturn_t mcfslt_tick(int irq, void *dummy)
{
/* Reset Slice Timer 0 */
__raw_writel(MCFSLT_SSR_BE | MCFSLT_SSR_TE, TA(MCFSLT_SSR));
mcfslt_cnt += mcfslt_cycles_per_jiffy;
return timer_interrupt(irq, dummy);
legacy_timer_tick(1);
return IRQ_HANDLED;
}
static u64 mcfslt_read_clk(struct clocksource *cs)
@ -119,7 +118,7 @@ static struct clocksource mcfslt_clk = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
void hw_timer_init(irq_handler_t handler)
void hw_timer_init(void)
{
int r;
@ -136,7 +135,6 @@ void hw_timer_init(irq_handler_t handler)
/* initialize mcfslt_cnt knowing that slice timers count down */
mcfslt_cnt = mcfslt_cycles_per_jiffy;
timer_interrupt = handler;
r = request_irq(MCF_IRQ_TIMER, mcfslt_tick, IRQF_TIMER, "timer", NULL);
if (r) {
pr_err("Failed to request irq %d (timer): %pe\n", MCF_IRQ_TIMER,

8
arch/m68k/coldfire/timers.c
View File

@ -48,8 +48,6 @@ void coldfire_profile_init(void);
static u32 mcftmr_cycles_per_jiffy;
static u32 mcftmr_cnt;
static irq_handler_t timer_interrupt;
/***************************************************************************/
static void init_timer_irq(void)
@ -77,7 +75,8 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy)
__raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, TA(MCFTIMER_TER));
mcftmr_cnt += mcftmr_cycles_per_jiffy;
return timer_interrupt(irq, dummy);
legacy_timer_tick(1);
return IRQ_HANDLED;
}
/***************************************************************************/
@ -108,7 +107,7 @@ static struct clocksource mcftmr_clk = {
/***************************************************************************/
void hw_timer_init(irq_handler_t handler)
void hw_timer_init(void)
{
int r;
@ -126,7 +125,6 @@ void hw_timer_init(irq_handler_t handler)
clocksource_register_hz(&mcftmr_clk, FREQ);
timer_interrupt = handler;
init_timer_irq();
r = request_irq(MCF_IRQ_TIMER, mcftmr_tick, IRQF_TIMER, "timer", NULL);
if (r) {

8
arch/m68k/hp300/time.c
View File

@ -55,7 +55,6 @@ static u32 clk_total, clk_offset;
static irqreturn_t hp300_tick(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
unsigned long tmp;
@ -64,7 +63,8 @@ static irqreturn_t hp300_tick(int irq, void *dev_id)
asm volatile ("movpw %1@(5),%0" : "=d" (tmp) : "a" (CLOCKBASE));
clk_total += INTVAL;
clk_offset = 0;
timer_routine(0, NULL);
legacy_timer_tick(1);
timer_heartbeat();
local_irq_restore(flags);
/* Turn off the network and SCSI leds */
@ -98,14 +98,14 @@ again:
return ticks;
}
void __init hp300_sched_init(irq_handler_t vector)
void __init hp300_sched_init(void)
{
out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */
out_8(CLOCKBASE + CLKCR1, 0x1); /* reset */
asm volatile(" movpw %0,%1@(5)" : : "d" (INTVAL), "a" (CLOCKBASE));
if (request_irq(IRQ_AUTO_6, hp300_tick, IRQF_TIMER, "timer tick", vector))
if (request_irq(IRQ_AUTO_6, hp300_tick, IRQF_TIMER, "timer tick", NULL))
pr_err("Couldn't register timer interrupt\n");
out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */

2
arch/m68k/hp300/time.h
View File

@ -1 +1 @@
extern void hp300_sched_init(irq_handler_t vector);
extern void hp300_sched_init(void);

12
arch/m68k/include/asm/machdep.h
View File

@ -12,7 +12,7 @@ struct rtc_time;
struct rtc_pll_info;
struct buffer_head;
extern void (*mach_sched_init) (irq_handler_t handler);
extern void (*mach_sched_init) (void);
/* machine dependent irq functions */
extern void (*mach_init_IRQ) (void);
extern void (*mach_get_model) (char *model);
@ -32,8 +32,14 @@ extern void (*mach_l2_flush) (int);
extern void (*mach_beep) (unsigned int, unsigned int);
/* Hardware clock functions */
extern void hw_timer_init(irq_handler_t handler);
extern unsigned long hw_timer_offset(void);
extern void hw_timer_init(void);
#ifdef CONFIG_HEARTBEAT
extern void timer_heartbeat(void);
#else
static inline void timer_heartbeat(void)
{
}
#endif
extern void config_BSP(char *command, int len);

2
arch/m68k/kernel/setup_mm.c
View File

@ -82,7 +82,7 @@ static struct m68k_mem_info m68k_ramdisk __initdata;
static char m68k_command_line[CL_SIZE] __initdata;
void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
void (*mach_sched_init) (void) __initdata = NULL;
/* machine dependent irq functions */
void (*mach_init_IRQ) (void) __initdata = NULL;
void (*mach_get_model) (char *model);

2
arch/m68k/kernel/setup_no.c
View File

@ -49,7 +49,7 @@ EXPORT_SYMBOL(memory_end);
char __initdata command_line[COMMAND_LINE_SIZE];
/* machine dependent timer functions */
void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
void (*mach_sched_init)(void) __initdata = NULL;
int (*mach_hwclk) (int, struct rtc_time*);
/* machine dependent reboot functions */

18
arch/m68k/kernel/time.c
View File

@ -35,18 +35,9 @@
unsigned long (*mach_random_get_entropy)(void);
EXPORT_SYMBOL_GPL(mach_random_get_entropy);
/*
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "xtime_update()" routine every clocktick
*/
static irqreturn_t timer_interrupt(int irq, void *dummy)
{
xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
profile_tick(CPU_PROFILING);
#ifdef CONFIG_HEARTBEAT
void timer_heartbeat(void)
{
/* use power LED as a heartbeat instead -- much more useful
for debugging -- based on the version for PReP by Cort */
/* acts like an actual heart beat -- ie thump-thump-pause... */
@ -68,9 +59,8 @@ static irqreturn_t timer_interrupt(int irq, void *dummy)
dist = period / 4;
}
}
#endif /* CONFIG_HEARTBEAT */
return IRQ_HANDLED;
}
#endif /* CONFIG_HEARTBEAT */
#ifdef CONFIG_M68KCLASSIC
#if !IS_BUILTIN(CONFIG_RTC_DRV_GENERIC)
@ -154,5 +144,5 @@ module_init(rtc_init);
void __init time_init(void)
{
mach_sched_init(timer_interrupt);
mach_sched_init();
}

6
arch/m68k/mac/config.c
View File

@ -57,7 +57,7 @@ static unsigned long mac_orig_videoaddr;
extern int mac_hwclk(int, struct rtc_time *);
extern void iop_init(void);
extern void via_init(void);
extern void via_init_clock(irq_handler_t func);
extern void via_init_clock(void);
extern void oss_init(void);
extern void psc_init(void);
extern void baboon_init(void);
@ -68,9 +68,9 @@ static void mac_get_model(char *str);
static void mac_identify(void);
static void mac_report_hardware(void);
static void __init mac_sched_init(irq_handler_t vector)
static void __init mac_sched_init(void)
{
via_init_clock(vector);
via_init_clock();
}
/*

8
arch/m68k/mac/via.c
View File

@ -583,19 +583,17 @@ static u32 clk_total, clk_offset;
static irqreturn_t via_timer_handler(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
clk_total += VIA_TIMER_CYCLES;
clk_offset = 0;
timer_routine(0, NULL);
legacy_timer_tick(1);
return IRQ_HANDLED;
}
void __init via_init_clock(irq_handler_t timer_routine)
void __init via_init_clock(void)
{
if (request_irq(IRQ_MAC_TIMER_1, via_timer_handler, IRQF_TIMER, "timer",
timer_routine)) {
NULL)) {
pr_err("Couldn't register %s interrupt\n", "timer");
return;
}

9
arch/m68k/mvme147/config.c
View File

@ -37,7 +37,7 @@
static void mvme147_get_model(char *model);
extern void mvme147_sched_init(irq_handler_t handler);
extern void mvme147_sched_init(void);
extern int mvme147_hwclk (int, struct rtc_time *);
extern void mvme147_reset (void);
@ -111,24 +111,23 @@ static u32 clk_total;
static irqreturn_t mvme147_timer_int (int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
local_irq_save(flags);
m147_pcc->t1_int_cntrl = PCC_TIMER_INT_CLR;
m147_pcc->t1_cntrl = PCC_TIMER_CLR_OVF;
clk_total += PCC_TIMER_CYCLES;
timer_routine(0, NULL);
legacy_timer_tick(1);
local_irq_restore(flags);
return IRQ_HANDLED;
}
void mvme147_sched_init (irq_handler_t timer_routine)
void mvme147_sched_init (void)
{
if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, IRQF_TIMER,
"timer 1", timer_routine))
"timer 1", NULL))
pr_err("Couldn't register timer interrupt\n");
/* Init the clock with a value */

9
arch/m68k/mvme16x/config.c
View File

@ -43,7 +43,7 @@ extern t_bdid mvme_bdid;
static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE;
static void mvme16x_get_model(char *model);
extern void mvme16x_sched_init(irq_handler_t handler);
extern void mvme16x_sched_init(void);
extern int mvme16x_hwclk (int, struct rtc_time *);
extern void mvme16x_reset (void);
@ -371,20 +371,19 @@ static u32 clk_total;
static irqreturn_t mvme16x_timer_int (int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
local_irq_save(flags);
out_8(PCCTIC1, in_8(PCCTIC1) | PCCTIC1_INT_CLR);
out_8(PCCTOVR1, PCCTOVR1_OVR_CLR);
clk_total += PCC_TIMER_CYCLES;
timer_routine(0, NULL);
legacy_timer_tick(1);
local_irq_restore(flags);
return IRQ_HANDLED;
}
void mvme16x_sched_init (irq_handler_t timer_routine)
void mvme16x_sched_init(void)
{
uint16_t brdno = be16_to_cpu(mvme_bdid.brdno);
int irq;
@ -395,7 +394,7 @@ void mvme16x_sched_init (irq_handler_t timer_routine)
out_8(PCCTOVR1, in_8(PCCTOVR1) | PCCTOVR1_TIC_EN | PCCTOVR1_COC_EN);
out_8(PCCTIC1, PCCTIC1_INT_EN | 6);
if (request_irq(MVME16x_IRQ_TIMER, mvme16x_timer_int, IRQF_TIMER, "timer",
timer_routine))
NULL))
panic ("Couldn't register timer int");
clocksource_register_hz(&mvme16x_clk, PCC_TIMER_CLOCK_FREQ);

2
arch/m68k/q40/config.c
View File

@ -37,7 +37,7 @@
extern void q40_init_IRQ(void);
static void q40_get_model(char *model);
extern void q40_sched_init(irq_handler_t handler);
extern void q40_sched_init(void);
static int q40_hwclk(int, struct rtc_time *);
static unsigned int q40_get_ss(void);

10
arch/m68k/q40/q40ints.c
View File

@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/machdep.h>
#include <asm/ptrace.h>
#include <asm/traps.h>
@ -129,8 +130,6 @@ void q40_mksound(unsigned int hz, unsigned int ticks)
static irqreturn_t q40_timer_int(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
ql_ticks = ql_ticks ? 0 : 1;
if (sound_ticks) {
unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL;
@ -143,19 +142,20 @@ static irqreturn_t q40_timer_int(int irq, void *dev_id)
unsigned long flags;
local_irq_save(flags);
timer_routine(0, NULL);
legacy_timer_tick(1);
timer_heartbeat();
local_irq_restore(flags);
}
return IRQ_HANDLED;
}
void q40_sched_init (irq_handler_t timer_routine)
void q40_sched_init (void)
{
int timer_irq;
timer_irq = Q40_IRQ_FRAME;
if (request_irq(timer_irq, q40_timer_int, 0, "timer", timer_routine))
if (request_irq(timer_irq, q40_timer_int, 0, "timer", NULL))
panic("Couldn't register timer int");
master_outb(-1, FRAME_CLEAR_REG);

4
arch/m68k/sun3/config.c
View File

@ -36,7 +36,7 @@
char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
static void sun3_sched_init(irq_handler_t handler);
static void sun3_sched_init(void);
extern void sun3_get_model (char* model);
extern int sun3_hwclk(int set, struct rtc_time *t);
@ -151,7 +151,7 @@ void __init config_sun3(void)
sun3_bootmem_alloc(memory_start, memory_end);
}
static void __init sun3_sched_init(irq_handler_t timer_routine)
static void __init sun3_sched_init(void)
{
sun3_disable_interrupts();
intersil_clock->cmd_reg=(INTERSIL_RUN|INTERSIL_INT_DISABLE|INTERSIL_24H_MODE);

3
arch/m68k/sun3/sun3ints.c
View File

@ -73,8 +73,7 @@ static irqreturn_t sun3_int5(int irq, void *dev_id)
#ifdef CONFIG_SUN3
intersil_clear();
#endif
xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
legacy_timer_tick(1);
cnt = kstat_irqs_cpu(irq, 0);
if (!(cnt % 20))
sun3_leds(led_pattern[cnt % 160 / 20]);

5
arch/m68k/sun3x/time.c
View File

@ -77,21 +77,20 @@ int sun3x_hwclk(int set, struct rtc_time *t)
#if 0
static irqreturn_t sun3x_timer_tick(int irq, void *dev_id)
{
irq_handler_t timer_routine = dev_id;
unsigned long flags;
local_irq_save(flags);
/* Clear the pending interrupt - pulse the enable line low */
disable_irq(5);
enable_irq(5);
timer_routine(0, NULL);
legacy_timer_tick(1);
local_irq_restore(flags);
return IRQ_HANDLED;
}
#endif
void __init sun3x_sched_init(irq_handler_t vector)
void __init sun3x_sched_init(void)
{
sun3_disable_interrupts();

2
arch/m68k/sun3x/time.h
View File

@ -3,7 +3,7 @@
#define SUN3X_TIME_H
extern int sun3x_hwclk(int set, struct rtc_time *t);
void sun3x_sched_init(irq_handler_t vector);
void sun3x_sched_init(void);
struct mostek_dt {
volatile unsigned char csr;

1
arch/microblaze/Kconfig
View File

@ -17,7 +17,6 @@ config MICROBLAZE
select COMMON_CLK
select DMA_DIRECT_REMAP if MMU
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IRQ_PROBE

1
arch/mips/Kconfig
View File

@ -21,7 +21,6 @@ config MIPS
select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
select CPU_PM if CPU_IDLE
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE
select GENERIC_CPU_AUTOPROBE
select GENERIC_GETTIMEOFDAY

1
arch/nds32/Kconfig
View File

@ -17,7 +17,6 @@ config NDS32
select DMA_DIRECT_REMAP
select GENERIC_ATOMIC64
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_SHOW
select GENERIC_IOREMAP

1
arch/nios2/Kconfig
View File

@ -10,7 +10,6 @@ config NIOS2
select COMMON_CLK
select TIMER_OF
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW

1
arch/openrisc/Kconfig
View File

@ -24,7 +24,6 @@ config OPENRISC
select GENERIC_CPU_DEVICES
select HAVE_UID16
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER

2
arch/parisc/Kconfig
View File

@ -52,7 +52,7 @@ config PARISC
select HAVE_REGS_AND_STACK_ACCESS_API
select GENERIC_SCHED_CLOCK
select HAVE_UNSTABLE_SCHED_CLOCK if SMP
select GENERIC_CLOCKEVENTS
select LEGACY_TIMER_TICK
select CPU_NO_EFFICIENT_FFS
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH

9
arch/parisc/kernel/time.c
View File

@ -70,8 +70,6 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
/* gcc can optimize for "read-only" case with a local clocktick */
unsigned long cpt = clocktick;
profile_tick(CPU_PROFILING);
/* Initialize next_tick to the old expected tick time. */
next_tick = cpuinfo->it_value;
@ -86,10 +84,9 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
cpuinfo->it_value = next_tick;
/* Go do system house keeping. */
if (cpu == 0)
xtime_update(ticks_elapsed);
update_process_times(user_mode(get_irq_regs()));
if (cpu != 0)
ticks_elapsed = 0;
legacy_timer_tick(ticks_elapsed);
/* Skip clockticks on purpose if we know we would miss those.
* The new CR16 must be "later" than current CR16 otherwise

1
arch/powerpc/Kconfig
View File

@ -165,7 +165,6 @@ config PPC
select EDAC_ATOMIC_SCRUB
select EDAC_SUPPORT
select GENERIC_ATOMIC64 if PPC32
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select GENERIC_CMOS_UPDATE
select GENERIC_CPU_AUTOPROBE

1
arch/riscv/Kconfig
View File

@ -38,7 +38,6 @@ config RISCV
select EDAC_SUPPORT
select GENERIC_ARCH_TOPOLOGY if SMP
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_CLOCKEVENTS
select GENERIC_EARLY_IOREMAP
select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO
select GENERIC_IOREMAP

1
arch/s390/Kconfig
View File

@ -113,7 +113,6 @@ config S390
select CLONE_BACKWARDS2
select DMA_OPS if PCI
select DYNAMIC_FTRACE if FUNCTION_TRACER
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_VULNERABILITIES
select GENERIC_FIND_FIRST_BIT

1
arch/sh/Kconfig
View File

@ -16,7 +16,6 @@ config SUPERH
select CPU_NO_EFFICIENT_FFS
select DMA_DECLARE_COHERENT
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IRQ_SHOW

1
arch/sparc/Kconfig
View File

@ -39,7 +39,6 @@ config SPARC
select HAVE_EBPF_JIT if SPARC64
select HAVE_DEBUG_BUGVERBOSE
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select MODULES_USE_ELF_RELA

1
arch/um/Kconfig
View File

@ -17,7 +17,6 @@ config UML
select NO_DMA
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
select HAVE_GCC_PLUGINS
select SET_FS
select TTY # Needed for line.c

1
arch/x86/Kconfig
View File

@ -112,7 +112,6 @@ config X86
select DCACHE_WORD_ACCESS
select EDAC_ATOMIC_SCRUB
select EDAC_SUPPORT
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
select GENERIC_CLOCKEVENTS_MIN_ADJUST
select GENERIC_CMOS_UPDATE

1
arch/xtensa/Kconfig
View File

@ -16,7 +16,6 @@ config XTENSA
select COMMON_CLK
select DMA_REMAP if MMU
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP
select GENERIC_SCHED_CLOCK

2
drivers/Makefile
View File

@ -135,9 +135,7 @@ obj-$(CONFIG_INFINIBAND) += infiniband/
obj-y += firmware/
obj-$(CONFIG_CRYPTO) += crypto/
obj-$(CONFIG_SUPERH) += sh/
ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
obj-y += clocksource/
endif
obj-$(CONFIG_DCA) += dca/
obj-$(CONFIG_HID) += hid/
obj-$(CONFIG_PPC_PS3) += ps3/

2
drivers/clocksource/Kconfig
View File

@ -553,7 +553,7 @@ config CLKSRC_QCOM
config CLKSRC_VERSATILE
bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
depends on GENERIC_SCHED_CLOCK
select TIMER_OF
default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM
help

10
drivers/net/ethernet/amd/Kconfig
View File

@ -8,7 +8,7 @@ config NET_VENDOR_AMD
default y
depends on DIO || MACH_DECSTATION || MVME147 || ATARI || SUN3 || \
SUN3X || SBUS || PCI || ZORRO || (ISA && ISA_DMA_API) || \
(ARM && ARCH_EBSA110) || ISA || EISA || PCMCIA || ARM64
ISA || EISA || PCMCIA || ARM64
help
If you have a network (Ethernet) chipset belonging to this class,
say Y.
@ -75,14 +75,6 @@ config ARIADNE
To compile this driver as a module, choose M here: the module
will be called ariadne.
config ARM_AM79C961A
bool "ARM EBSA110 AM79C961A support"
depends on ARM && ARCH_EBSA110
select CRC32
help
If you wish to compile a kernel for the EBSA-110, then you should
always answer Y to this.
config ATARILANCE
tristate "Atari LANCE support"
depends on ATARI

1
drivers/net/ethernet/amd/Makefile
View File

@ -5,7 +5,6 @@
obj-$(CONFIG_A2065) += a2065.o
obj-$(CONFIG_AMD8111_ETH) += amd8111e.o
obj-$(CONFIG_ARM_AM79C961A) += am79c961a.o
obj-$(CONFIG_ARIADNE) += ariadne.o
obj-$(CONFIG_ATARILANCE) += atarilance.o
obj-$(CONFIG_DECLANCE) += declance.o

763
drivers/net/ethernet/amd/am79c961a.c
View File

@ -1,763 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/net/ethernet/amd/am79c961a.c
*
* by Russell King <rmk@arm.linux.org.uk> 1995-2001.
*
* Derived from various things including skeleton.c
*
* This is a special driver for the am79c961A Lance chip used in the
* Intel (formally Digital Equipment Corp) EBSA110 platform. Please
* note that this can not be built as a module (it doesn't make sense).
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
#define TX_BUFFERS 15
#define RX_BUFFERS 25
#include "am79c961a.h"
static irqreturn_t
am79c961_interrupt (int irq, void *dev_id);
static unsigned int net_debug = NET_DEBUG;
static const char version[] =
"am79c961 ethernet driver (C) 1995-2001 Russell King v0.04\n";
/* --------------------------------------------------------------------------- */
#ifdef __arm__
static void write_rreg(u_long base, u_int reg, u_int val)
{
asm volatile(
"strh %1, [%2] @ NET_RAP\n\t"
"strh %0, [%2, #-4] @ NET_RDP"
:
: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
}
static inline unsigned short read_rreg(u_long base_addr, u_int reg)
{
unsigned short v;
asm volatile(
"strh %1, [%2] @ NET_RAP\n\t"
"ldrh %0, [%2, #-4] @ NET_RDP"
: "=r" (v)
: "r" (reg), "r" (ISAIO_BASE + 0x0464));
return v;
}
static inline void write_ireg(u_long base, u_int reg, u_int val)
{
asm volatile(
"strh %1, [%2] @ NET_RAP\n\t"
"strh %0, [%2, #8] @ NET_IDP"
:
: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
}
static inline unsigned short read_ireg(u_long base_addr, u_int reg)
{
u_short v;
asm volatile(
"strh %1, [%2] @ NAT_RAP\n\t"
"ldrh %0, [%2, #8] @ NET_IDP\n\t"
: "=r" (v)
: "r" (reg), "r" (ISAIO_BASE + 0x0464));
return v;
}
#define am_writeword(dev,off,val) __raw_writew(val, ISAMEM_BASE + ((off) << 1))
#define am_readword(dev,off) __raw_readw(ISAMEM_BASE + ((off) << 1))
static void
am_writebuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)
{
offset = ISAMEM_BASE + (offset << 1);
length = (length + 1) & ~1;
if ((int)buf & 2) {
asm volatile("strh %2, [%0], #4"
: "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
buf += 2;
length -= 2;
}
while (length > 8) {
register unsigned int tmp asm("r2"), tmp2 asm("r3");
asm volatile(
"ldmia %0!, {%1, %2}"
: "+r" (buf), "=&r" (tmp), "=&r" (tmp2));
length -= 8;
asm volatile(
"strh %1, [%0], #4\n\t"
"mov %1, %1, lsr #16\n\t"
"strh %1, [%0], #4\n\t"
"strh %2, [%0], #4\n\t"
"mov %2, %2, lsr #16\n\t"
"strh %2, [%0], #4"
: "+r" (offset), "=&r" (tmp), "=&r" (tmp2));
}
while (length > 0) {
asm volatile("strh %2, [%0], #4"
: "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
buf += 2;
length -= 2;
}
}
static void
am_readbuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)
{
offset = ISAMEM_BASE + (offset << 1);
length = (length + 1) & ~1;
if ((int)buf & 2) {
unsigned int tmp;
asm volatile(
"ldrh %2, [%0], #4\n\t"
"strb %2, [%1], #1\n\t"
"mov %2, %2, lsr #8\n\t"
"strb %2, [%1], #1"
: "=&r" (offset), "=&r" (buf), "=r" (tmp): "0" (offset), "1" (buf));
length -= 2;
}
while (length > 8) {
register unsigned int tmp asm("r2"), tmp2 asm("r3"), tmp3;
asm volatile(
"ldrh %2, [%0], #4\n\t"
"ldrh %4, [%0], #4\n\t"
"ldrh %3, [%0], #4\n\t"
"orr %2, %2, %4, lsl #16\n\t"
"ldrh %4, [%0], #4\n\t"
"orr %3, %3, %4, lsl #16\n\t"
"stmia %1!, {%2, %3}"
: "=&r" (offset), "=&r" (buf), "=r" (tmp), "=r" (tmp2), "=r" (tmp3)
: "0" (offset), "1" (buf));
length -= 8;
}
while (length > 0) {
unsigned int tmp;
asm volatile(
"ldrh %2, [%0], #4\n\t"
"strb %2, [%1], #1\n\t"
"mov %2, %2, lsr #8\n\t"
"strb %2, [%1], #1"
: "=&r" (offset), "=&r" (buf), "=r" (tmp) : "0" (offset), "1" (buf));
length -= 2;
}
}
#else
#error Not compatible
#endif
static int
am79c961_ramtest(struct net_device *dev, unsigned int val)
{
unsigned char *buffer = kmalloc (65536, GFP_KERNEL);
int i, error = 0, errorcount = 0;
if (!buffer)
return 0;
memset (buffer, val, 65536);
am_writebuffer(dev, 0, buffer, 65536);
memset (buffer, val ^ 255, 65536);
am_readbuffer(dev, 0, buffer, 65536);
for (i = 0; i < 65536; i++) {
if (buffer[i] != val && !error) {
printk ("%s: buffer error (%02X %02X) %05X - ", dev->name, val, buffer[i], i);
error = 1;
errorcount ++;
} else if (error && buffer[i] == val) {
printk ("%05X\n", i);
error = 0;
}
}
if (error)
printk ("10000\n");
kfree (buffer);
return errorcount;
}
static void am79c961_mc_hash(char *addr, u16 *hash)
{
int idx, bit;
u32 crc;
crc = ether_crc_le(ETH_ALEN, addr);
idx = crc >> 30;
bit = (crc >> 26) & 15;
hash[idx] |= 1 << bit;
}
static unsigned int am79c961_get_rx_mode(struct net_device *dev, u16 *hash)
{
unsigned int mode = MODE_PORT_10BT;
if (dev->flags & IFF_PROMISC) {
mode |= MODE_PROMISC;
memset(hash, 0xff, 4 * sizeof(*hash));
} else if (dev->flags & IFF_ALLMULTI) {
memset(hash, 0xff, 4 * sizeof(*hash));
} else {
struct netdev_hw_addr *ha;
memset(hash, 0, 4 * sizeof(*hash));
netdev_for_each_mc_addr(ha, dev)
am79c961_mc_hash(ha->addr, hash);
}
return mode;
}
static void
am79c961_init_for_open(struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
unsigned long flags;
unsigned char *p;
u_int hdr_addr, first_free_addr;
u16 multi_hash[4], mode = am79c961_get_rx_mode(dev, multi_hash);
int i;
/*
* Stop the chip.
*/
spin_lock_irqsave(&priv->chip_lock, flags);
write_rreg (dev->base_addr, CSR0, CSR0_BABL|CSR0_CERR|CSR0_MISS|CSR0_MERR|CSR0_TINT|CSR0_RINT|CSR0_STOP);
spin_unlock_irqrestore(&priv->chip_lock, flags);
write_ireg (dev->base_addr, 5, 0x00a0); /* Receive address LED */
write_ireg (dev->base_addr, 6, 0x0081); /* Collision LED */
write_ireg (dev->base_addr, 7, 0x0090); /* XMIT LED */
write_ireg (dev->base_addr, 2, 0x0000); /* MODE register selects media */
for (i = LADRL; i <= LADRH; i++)
write_rreg (dev->base_addr, i, multi_hash[i - LADRL]);
for (i = PADRL, p = dev->dev_addr; i <= PADRH; i++, p += 2)
write_rreg (dev->base_addr, i, p[0] | (p[1] << 8));
write_rreg (dev->base_addr, MODE, mode);
write_rreg (dev->base_addr, POLLINT, 0);
write_rreg (dev->base_addr, SIZERXR, -RX_BUFFERS);
write_rreg (dev->base_addr, SIZETXR, -TX_BUFFERS);
first_free_addr = RX_BUFFERS * 8 + TX_BUFFERS * 8 + 16;
hdr_addr = 0;
priv->rxhead = 0;
priv->rxtail = 0;
priv->rxhdr = hdr_addr;
for (i = 0; i < RX_BUFFERS; i++) {
priv->rxbuffer[i] = first_free_addr;
am_writeword (dev, hdr_addr, first_free_addr);
am_writeword (dev, hdr_addr + 2, RMD_OWN);
am_writeword (dev, hdr_addr + 4, (-1600));
am_writeword (dev, hdr_addr + 6, 0);
first_free_addr += 1600;
hdr_addr += 8;
}
priv->txhead = 0;
priv->txtail = 0;
priv->txhdr = hdr_addr;
for (i = 0; i < TX_BUFFERS; i++) {
priv->txbuffer[i] = first_free_addr;
am_writeword (dev, hdr_addr, first_free_addr);
am_writeword (dev, hdr_addr + 2, TMD_STP|TMD_ENP);
am_writeword (dev, hdr_addr + 4, 0xf000);
am_writeword (dev, hdr_addr + 6, 0);
first_free_addr += 1600;
hdr_addr += 8;
}
write_rreg (dev->base_addr, BASERXL, priv->rxhdr);
write_rreg (dev->base_addr, BASERXH, 0);
write_rreg (dev->base_addr, BASETXL, priv->txhdr);
write_rreg (dev->base_addr, BASERXH, 0);
write_rreg (dev->base_addr, CSR0, CSR0_STOP);
write_rreg (dev->base_addr, CSR3, CSR3_IDONM|CSR3_BABLM|CSR3_DXSUFLO);
write_rreg (dev->base_addr, CSR4, CSR4_APAD_XMIT|CSR4_MFCOM|CSR4_RCVCCOM|CSR4_TXSTRTM|CSR4_JABM);
write_rreg (dev->base_addr, CSR0, CSR0_IENA|CSR0_STRT);
}
static void am79c961_timer(struct timer_list *t)
{
struct dev_priv *priv = from_timer(priv, t, timer);
struct net_device *dev = priv->dev;
unsigned int lnkstat, carrier;
unsigned long flags;
spin_lock_irqsave(&priv->chip_lock, flags);
lnkstat = read_ireg(dev->base_addr, ISALED0) & ISALED0_LNKST;
spin_unlock_irqrestore(&priv->chip_lock, flags);
carrier = netif_carrier_ok(dev);
if (lnkstat && !carrier) {
netif_carrier_on(dev);
printk("%s: link up\n", dev->name);
} else if (!lnkstat && carrier) {
netif_carrier_off(dev);
printk("%s: link down\n", dev->name);
}
mod_timer(&priv->timer, jiffies + msecs_to_jiffies(500));
}
/*
* Open/initialize the board.
*/
static int
am79c961_open(struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
int ret;
ret = request_irq(dev->irq, am79c961_interrupt, 0, dev->name, dev);
if (ret)
return ret;
am79c961_init_for_open(dev);
netif_carrier_off(dev);
priv->timer.expires = jiffies;
add_timer(&priv->timer);
netif_start_queue(dev);
return 0;
}
/*
* The inverse routine to am79c961_open().
*/
static int
am79c961_close(struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
unsigned long flags;
del_timer_sync(&priv->timer);
netif_stop_queue(dev);
netif_carrier_off(dev);
spin_lock_irqsave(&priv->chip_lock, flags);
write_rreg (dev->base_addr, CSR0, CSR0_STOP);
write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);
spin_unlock_irqrestore(&priv->chip_lock, flags);
free_irq (dev->irq, dev);
return 0;
}
/*
* Set or clear promiscuous/multicast mode filter for this adapter.
*/
static void am79c961_setmulticastlist (struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
unsigned long flags;
u16 multi_hash[4], mode = am79c961_get_rx_mode(dev, multi_hash);
int i, stopped;
spin_lock_irqsave(&priv->chip_lock, flags);
stopped = read_rreg(dev->base_addr, CSR0) & CSR0_STOP;
if (!stopped) {
/*
* Put the chip into suspend mode
*/
write_rreg(dev->base_addr, CTRL1, CTRL1_SPND);
/*
* Spin waiting for chip to report suspend mode
*/
while ((read_rreg(dev->base_addr, CTRL1) & CTRL1_SPND) == 0) {
spin_unlock_irqrestore(&priv->chip_lock, flags);
nop();
spin_lock_irqsave(&priv->chip_lock, flags);
}
}
/*
* Update the multicast hash table
*/
for (i = 0; i < ARRAY_SIZE(multi_hash); i++)
write_rreg(dev->base_addr, i + LADRL, multi_hash[i]);
/*
* Write the mode register
*/
write_rreg(dev->base_addr, MODE, mode);
if (!stopped) {
/*
* Put the chip back into running mode
*/
write_rreg(dev->base_addr, CTRL1, 0);
}
spin_unlock_irqrestore(&priv->chip_lock, flags);
}
static void am79c961_timeout(struct net_device *dev, unsigned int txqueue)
{
printk(KERN_WARNING "%s: transmit timed out, network cable problem?\n",
dev->name);
/*
* ought to do some setup of the tx side here
*/
netif_wake_queue(dev);
}
/*
* Transmit a packet
*/
static netdev_tx_t
am79c961_sendpacket(struct sk_buff *skb, struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
unsigned int hdraddr, bufaddr;
unsigned int head;
unsigned long flags;
head = priv->txhead;
hdraddr = priv->txhdr + (head << 3);
bufaddr = priv->txbuffer[head];
head += 1;
if (head >= TX_BUFFERS)
head = 0;
am_writebuffer (dev, bufaddr, skb->data, skb->len);
am_writeword (dev, hdraddr + 4, -skb->len);
am_writeword (dev, hdraddr + 2, TMD_OWN|TMD_STP|TMD_ENP);
priv->txhead = head;
spin_lock_irqsave(&priv->chip_lock, flags);
write_rreg (dev->base_addr, CSR0, CSR0_TDMD|CSR0_IENA);
spin_unlock_irqrestore(&priv->chip_lock, flags);
/*
* If the next packet is owned by the ethernet device,
* then the tx ring is full and we can't add another
* packet.
*/
if (am_readword(dev, priv->txhdr + (priv->txhead << 3) + 2) & TMD_OWN)
netif_stop_queue(dev);
dev_consume_skb_any(skb);
return NETDEV_TX_OK;
}
/*
* If we have a good packet(s), get it/them out of the buffers.
*/
static void
am79c961_rx(struct net_device *dev, struct dev_priv *priv)
{
do {
struct sk_buff *skb;
u_int hdraddr;
u_int pktaddr;
u_int status;
int len;
hdraddr = priv->rxhdr + (priv->rxtail << 3);
pktaddr = priv->rxbuffer[priv->rxtail];
status = am_readword (dev, hdraddr + 2);
if (status & RMD_OWN) /* do we own it? */
break;
priv->rxtail ++;
if (priv->rxtail >= RX_BUFFERS)
priv->rxtail = 0;
if ((status & (RMD_ERR|RMD_STP|RMD_ENP)) != (RMD_STP|RMD_ENP)) {
am_writeword (dev, hdraddr + 2, RMD_OWN);
dev->stats.rx_errors++;
if (status & RMD_ERR) {
if (status & RMD_FRAM)
dev->stats.rx_frame_errors++;
if (status & RMD_CRC)
dev->stats.rx_crc_errors++;
} else if (status & RMD_STP)
dev->stats.rx_length_errors++;
continue;
}
len = am_readword(dev, hdraddr + 6);
skb = netdev_alloc_skb(dev, len + 2);
if (skb) {
skb_reserve(skb, 2);
am_readbuffer(dev, pktaddr, skb_put(skb, len), len);
am_writeword(dev, hdraddr + 2, RMD_OWN);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_bytes += len;
dev->stats.rx_packets++;
} else {
am_writeword (dev, hdraddr + 2, RMD_OWN);
dev->stats.rx_dropped++;
break;
}
} while (1);
}
/*
* Update stats for the transmitted packet
*/
static void
am79c961_tx(struct net_device *dev, struct dev_priv *priv)
{
do {
short len;
u_int hdraddr;
u_int status;
hdraddr = priv->txhdr + (priv->txtail << 3);
status = am_readword (dev, hdraddr + 2);
if (status & TMD_OWN)
break;
priv->txtail ++;
if (priv->txtail >= TX_BUFFERS)
priv->txtail = 0;
if (status & TMD_ERR) {
u_int status2;
dev->stats.tx_errors++;
status2 = am_readword (dev, hdraddr + 6);
/*
* Clear the error byte
*/
am_writeword (dev, hdraddr + 6, 0);
if (status2 & TST_RTRY)
dev->stats.collisions += 16;
if (status2 & TST_LCOL)
dev->stats.tx_window_errors++;
if (status2 & TST_LCAR)
dev->stats.tx_carrier_errors++;
if (status2 & TST_UFLO)
dev->stats.tx_fifo_errors++;
continue;
}
dev->stats.tx_packets++;
len = am_readword (dev, hdraddr + 4);
dev->stats.tx_bytes += -len;
} while (priv->txtail != priv->txhead);
netif_wake_queue(dev);
}
static irqreturn_t
am79c961_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct dev_priv *priv = netdev_priv(dev);
u_int status, n = 100;
int handled = 0;
do {
status = read_rreg(dev->base_addr, CSR0);
write_rreg(dev->base_addr, CSR0, status &
(CSR0_IENA|CSR0_TINT|CSR0_RINT|
CSR0_MERR|CSR0_MISS|CSR0_CERR|CSR0_BABL));
if (status & CSR0_RINT) {
handled = 1;
am79c961_rx(dev, priv);
}
if (status & CSR0_TINT) {
handled = 1;
am79c961_tx(dev, priv);
}
if (status & CSR0_MISS) {
handled = 1;
dev->stats.rx_dropped++;
}
if (status & CSR0_CERR) {
handled = 1;
mod_timer(&priv->timer, jiffies);
}
} while (--n && status & (CSR0_RINT | CSR0_TINT));
return IRQ_RETVAL(handled);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void am79c961_poll_controller(struct net_device *dev)
{
unsigned long flags;
local_irq_save(flags);
am79c961_interrupt(dev->irq, dev);
local_irq_restore(flags);
}
#endif
/*
* Initialise the chip. Note that we always expect
* to be entered with interrupts enabled.
*/
static int
am79c961_hw_init(struct net_device *dev)
{
struct dev_priv *priv = netdev_priv(dev);
spin_lock_irq(&priv->chip_lock);
write_rreg (dev->base_addr, CSR0, CSR0_STOP);
write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);
spin_unlock_irq(&priv->chip_lock);
am79c961_ramtest(dev, 0x66);
am79c961_ramtest(dev, 0x99);
return 0;
}
static void __init am79c961_banner(void)
{
static unsigned version_printed;
if (net_debug && version_printed++ == 0)
printk(KERN_INFO "%s", version);
}
static const struct net_device_ops am79c961_netdev_ops = {
.ndo_open = am79c961_open,
.ndo_stop = am79c961_close,
.ndo_start_xmit = am79c961_sendpacket,
.ndo_set_rx_mode = am79c961_setmulticastlist,
.ndo_tx_timeout = am79c961_timeout,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = am79c961_poll_controller,
#endif
};
static int am79c961_probe(struct platform_device *pdev)
{
struct resource *res;
struct net_device *dev;
struct dev_priv *priv;
int i, ret;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res)
return -ENODEV;
dev = alloc_etherdev(sizeof(struct dev_priv));
ret = -ENOMEM;
if (!dev)
goto out;
SET_NETDEV_DEV(dev, &pdev->dev);
priv = netdev_priv(dev);
/*
* Fixed address and IRQ lines here.
* The PNP initialisation should have been
* done by the ether bootp loader.
*/
dev->base_addr = res->start;
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
ret = -ENODEV;
goto nodev;
}
dev->irq = ret;
ret = -ENODEV;
if (!request_region(dev->base_addr, 0x18, dev->name))
goto nodev;
/*
* Reset the device.
*/
inb(dev->base_addr + NET_RESET);
udelay(5);
/*
* Check the manufacturer part of the
* ether address.
*/
if (inb(dev->base_addr) != 0x08 ||
inb(dev->base_addr + 2) != 0x00 ||
inb(dev->base_addr + 4) != 0x2b)
goto release;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = inb(dev->base_addr + i * 2) & 0xff;
am79c961_banner();
spin_lock_init(&priv->chip_lock);
priv->dev = dev;
timer_setup(&priv->timer, am79c961_timer, 0);
if (am79c961_hw_init(dev))
goto release;
dev->netdev_ops = &am79c961_netdev_ops;
ret = register_netdev(dev);
if (ret == 0) {
printk(KERN_INFO "%s: ether address %pM\n",
dev->name, dev->dev_addr);
return 0;
}
release:
release_region(dev->base_addr, 0x18);
nodev:
free_netdev(dev);
out:
return ret;
}
static struct platform_driver am79c961_driver = {
.probe = am79c961_probe,
.driver = {
.name = "am79c961",
},
};
static int __init am79c961_init(void)
{
return platform_driver_register(&am79c961_driver);
}
__initcall(am79c961_init);

143
drivers/net/ethernet/amd/am79c961a.h
View File

@ -1,143 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/drivers/net/ethernet/amd/am79c961a.h
*/
#ifndef _LINUX_am79c961a_H
#define _LINUX_am79c961a_H
/* use 0 for production, 1 for verification, >2 for debug. debug flags: */
#define DEBUG_TX 2
#define DEBUG_RX 4
#define DEBUG_INT 8
#define DEBUG_IC 16
#ifndef NET_DEBUG
#define NET_DEBUG 0
#endif
#define NET_UID 0
#define NET_RDP 0x10
#define NET_RAP 0x12
#define NET_RESET 0x14
#define NET_IDP 0x16
/*
* RAP registers
*/
#define CSR0 0
#define CSR0_INIT 0x0001
#define CSR0_STRT 0x0002
#define CSR0_STOP 0x0004
#define CSR0_TDMD 0x0008
#define CSR0_TXON 0x0010
#define CSR0_RXON 0x0020
#define CSR0_IENA 0x0040
#define CSR0_INTR 0x0080
#define CSR0_IDON 0x0100
#define CSR0_TINT 0x0200
#define CSR0_RINT 0x0400
#define CSR0_MERR 0x0800
#define CSR0_MISS 0x1000
#define CSR0_CERR 0x2000
#define CSR0_BABL 0x4000
#define CSR0_ERR 0x8000
#define CSR3 3
#define CSR3_EMBA 0x0008
#define CSR3_DXMT2PD 0x0010
#define CSR3_LAPPEN 0x0020
#define CSR3_DXSUFLO 0x0040
#define CSR3_IDONM 0x0100
#define CSR3_TINTM 0x0200
#define CSR3_RINTM 0x0400
#define CSR3_MERRM 0x0800
#define CSR3_MISSM 0x1000
#define CSR3_BABLM 0x4000
#define CSR3_MASKALL 0x5F00
#define CSR4 4
#define CSR4_JABM 0x0001
#define CSR4_JAB 0x0002
#define CSR4_TXSTRTM 0x0004
#define CSR4_TXSTRT 0x0008
#define CSR4_RCVCCOM 0x0010
#define CSR4_RCVCCO 0x0020
#define CSR4_MFCOM 0x0100
#define CSR4_MFCO 0x0200
#define CSR4_ASTRP_RCV 0x0400
#define CSR4_APAD_XMIT 0x0800
#define CTRL1 5
#define CTRL1_SPND 0x0001
#define LADRL 8
#define LADRM1 9
#define LADRM2 10
#define LADRH 11
#define PADRL 12
#define PADRM 13
#define PADRH 14
#define MODE 15
#define MODE_DISRX 0x0001
#define MODE_DISTX 0x0002
#define MODE_LOOP 0x0004
#define MODE_DTCRC 0x0008
#define MODE_COLL 0x0010
#define MODE_DRETRY 0x0020
#define MODE_INTLOOP 0x0040
#define MODE_PORT_AUI 0x0000
#define MODE_PORT_10BT 0x0080
#define MODE_DRXPA 0x2000
#define MODE_DRXBA 0x4000
#define MODE_PROMISC 0x8000
#define BASERXL 24
#define BASERXH 25
#define BASETXL 30
#define BASETXH 31
#define POLLINT 47
#define SIZERXR 76
#define SIZETXR 78
#define CSR_MFC 112
#define RMD_ENP 0x0100
#define RMD_STP 0x0200
#define RMD_CRC 0x0800
#define RMD_FRAM 0x2000
#define RMD_ERR 0x4000
#define RMD_OWN 0x8000
#define TMD_ENP 0x0100
#define TMD_STP 0x0200
#define TMD_MORE 0x1000
#define TMD_ERR 0x4000
#define TMD_OWN 0x8000
#define TST_RTRY 0x0400
#define TST_LCAR 0x0800
#define TST_LCOL 0x1000
#define TST_UFLO 0x4000
#define TST_BUFF 0x8000
#define ISALED0 0x0004
#define ISALED0_LNKST 0x8000
struct dev_priv {
unsigned long rxbuffer[RX_BUFFERS];
unsigned long txbuffer[TX_BUFFERS];
unsigned char txhead;
unsigned char txtail;
unsigned char rxhead;
unsigned char rxtail;
unsigned long rxhdr;
unsigned long txhdr;
spinlock_t chip_lock;
struct timer_list timer;
struct net_device *dev;
};
#endif

2
drivers/watchdog/Kconfig
View File

@ -599,7 +599,7 @@ config K3_RTI_WATCHDOG
config ORION_WATCHDOG
tristate "Orion watchdog"
depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
depends on ARM
select WATCHDOG_CORE
help

13
include/linux/time.h
View File

@ -21,19 +21,6 @@ extern time64_t mktime64(const unsigned int year, const unsigned int mon,
const unsigned int day, const unsigned int hour,
const unsigned int min, const unsigned int sec);
/* Some architectures do not supply their own clocksource.
* This is mainly the case in architectures that get their
* inter-tick times by reading the counter on their interval
* timer. Since these timers wrap every tick, they're not really
* useful as clocksources. Wrapping them to act like one is possible
* but not very efficient. So we provide a callout these arches
* can implement for use with the jiffies clocksource to provide
* finer then tick granular time.
*/
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
extern u32 (*arch_gettimeoffset)(void);
#endif
#ifdef CONFIG_POSIX_TIMERS
extern void clear_itimer(void);
#else

3
include/linux/timekeeping.h
View File

@ -10,8 +10,7 @@ void timekeeping_init(void);
extern int timekeeping_suspended;
/* Architecture timer tick functions: */
extern void update_process_times(int user);
extern void xtime_update(unsigned long ticks);
extern void legacy_timer_tick(unsigned long ticks);
/*
* Get and set timeofday

18
kernel/time/Kconfig
View File

@ -26,13 +26,9 @@ config CLOCKSOURCE_VALIDATE_LAST_CYCLE
config GENERIC_TIME_VSYSCALL
bool
# Old style timekeeping
config ARCH_USES_GETTIMEOFFSET
bool
# The generic clock events infrastructure
config GENERIC_CLOCKEVENTS
bool
def_bool !LEGACY_TIMER_TICK
# Architecture can handle broadcast in a driver-agnostic way
config ARCH_HAS_TICK_BROADCAST
@ -61,6 +57,13 @@ config POSIX_CPU_TIMERS_TASK_WORK
bool
default y if POSIX_TIMERS && HAVE_POSIX_CPU_TIMERS_TASK_WORK
config LEGACY_TIMER_TICK
bool
help
The legacy timer tick helper is used by platforms that
lack support for the generic clockevent framework.
New platforms should use generic clockevents instead.
if GENERIC_CLOCKEVENTS
menu "Timers subsystem"
@ -72,7 +75,6 @@ config TICK_ONESHOT
config NO_HZ_COMMON
bool
depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
select TICK_ONESHOT
choice
@ -87,7 +89,6 @@ config HZ_PERIODIC
config NO_HZ_IDLE
bool "Idle dynticks system (tickless idle)"
depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
select NO_HZ_COMMON
help
This option enables a tickless idle system: timer interrupts
@ -99,7 +100,6 @@ config NO_HZ_IDLE
config NO_HZ_FULL
bool "Full dynticks system (tickless)"
# NO_HZ_COMMON dependency
depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
# We need at least one periodic CPU for timekeeping
depends on SMP
depends on HAVE_CONTEXT_TRACKING
@ -158,7 +158,6 @@ config CONTEXT_TRACKING_FORCE
config NO_HZ
bool "Old Idle dynticks config"
depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
help
This is the old config entry that enables dynticks idle.
We keep it around for a little while to enforce backward
@ -166,7 +165,6 @@ config NO_HZ
config HIGH_RES_TIMERS
bool "High Resolution Timer Support"
depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS
select TICK_ONESHOT
help
This option enables high resolution timer support. If your

1
kernel/time/Makefile
View File

@ -16,6 +16,7 @@ ifeq ($(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST),y)
endif
obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o tick-sched.o
obj-$(CONFIG_LEGACY_TIMER_TICK) += tick-legacy.o
obj-$(CONFIG_HAVE_GENERIC_VDSO) += vsyscall.o
obj-$(CONFIG_DEBUG_FS) += timekeeping_debug.o
obj-$(CONFIG_TEST_UDELAY) += test_udelay.o

8
kernel/time/clocksource.c
View File

@ -705,8 +705,6 @@ static inline void clocksource_update_max_deferment(struct clocksource *cs)
&cs->max_cycles);
}
#ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
static struct clocksource *clocksource_find_best(bool oneshot, bool skipcur)
{
struct clocksource *cs;
@ -798,12 +796,6 @@ static void clocksource_select_fallback(void)
__clocksource_select(true);
}
#else /* !CONFIG_ARCH_USES_GETTIMEOFFSET */
static inline void clocksource_select(void) { }
static inline void clocksource_select_fallback(void) { }
#endif
/*
* clocksource_done_booting - Called near the end of core bootup
*

37
kernel/time/tick-legacy.c Normal file
View File

@ -0,0 +1,37 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Timer tick function for architectures that lack generic clockevents,
* consolidated here from m68k/ia64/parisc/arm.
*/
#include <linux/irq.h>
#include <linux/profile.h>
#include <linux/timekeeper_internal.h>
#include "tick-internal.h"
/**
* legacy_timer_tick() - advances the timekeeping infrastructure
* @ticks: number of ticks, that have elapsed since the last call.
*
* This is used by platforms that have not been converted to
* generic clockevents.
*
* If 'ticks' is zero, the CPU is not handling timekeeping, so
* only perform process accounting and profiling.
*
* Must be called with interrupts disabled.
*/
void legacy_timer_tick(unsigned long ticks)
{
if (ticks) {
raw_spin_lock(&jiffies_lock);
write_seqcount_begin(&jiffies_seq);
do_timer(ticks);
write_seqcount_end(&jiffies_seq);
raw_spin_unlock(&jiffies_lock);
update_wall_time();
}
update_process_times(user_mode(get_irq_regs()));
profile_tick(CPU_PROFILING);
}

41
kernel/time/timekeeping.c
View File

@ -369,13 +369,6 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
/* Timekeeper helper functions. */
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
static u32 default_arch_gettimeoffset(void) { return 0; }
u32 (*arch_gettimeoffset)(void) = default_arch_gettimeoffset;
#else
static inline u32 arch_gettimeoffset(void) { return 0; }
#endif
static inline u64 timekeeping_delta_to_ns(const struct tk_read_base *tkr, u64 delta)
{
u64 nsec;
@ -383,8 +376,7 @@ static inline u64 timekeeping_delta_to_ns(const struct tk_read_base *tkr, u64 de
nsec = delta * tkr->mult + tkr->xtime_nsec;
nsec >>= tkr->shift;
/* If arch requires, add in get_arch_timeoffset() */
return nsec + arch_gettimeoffset();
return nsec;
}
static inline u64 timekeeping_get_ns(const struct tk_read_base *tkr)
@ -790,16 +782,8 @@ static void timekeeping_forward_now(struct timekeeper *tk)
tk->tkr_raw.cycle_last = cycle_now;
tk->tkr_mono.xtime_nsec += delta * tk->tkr_mono.mult;
/* If arch requires, add in get_arch_timeoffset() */
tk->tkr_mono.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr_mono.shift;
tk->tkr_raw.xtime_nsec += delta * tk->tkr_raw.mult;
/* If arch requires, add in get_arch_timeoffset() */
tk->tkr_raw.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr_raw.shift;
tk_normalize_xtime(tk);
}
@ -2146,19 +2130,12 @@ static void timekeeping_advance(enum timekeeping_adv_mode mode)
if (unlikely(timekeeping_suspended))
goto out;
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
offset = real_tk->cycle_interval;
if (mode != TK_ADV_TICK)
goto out;
#else
offset = clocksource_delta(tk_clock_read(&tk->tkr_mono),
tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
/* Check if there's really nothing to do */
if (offset < real_tk->cycle_interval && mode == TK_ADV_TICK)
goto out;
#endif
/* Do some additional sanity checking */
timekeeping_check_update(tk, offset);
@ -2474,19 +2451,3 @@ void hardpps(const struct timespec64 *phase_ts, const struct timespec64 *raw_ts)
}
EXPORT_SYMBOL(hardpps);
#endif /* CONFIG_NTP_PPS */
/**
* xtime_update() - advances the timekeeping infrastructure
* @ticks: number of ticks, that have elapsed since the last call.
*
* Must be called with interrupts disabled.
*/
void xtime_update(unsigned long ticks)
{
raw_spin_lock(&jiffies_lock);
write_seqcount_begin(&jiffies_seq);
do_timer(ticks);
write_seqcount_end(&jiffies_seq);
raw_spin_unlock(&jiffies_lock);
update_wall_time();
}

1
kernel/time/timekeeping.h
View File

@ -22,6 +22,7 @@ static inline int sched_clock_suspend(void) { return 0; }
static inline void sched_clock_resume(void) { }
#endif
extern void update_process_times(int user);
extern void do_timer(unsigned long ticks);
extern void update_wall_time(void);

2
kernel/trace/Kconfig
View File

@ -253,7 +253,6 @@ config IRQSOFF_TRACER
bool "Interrupts-off Latency Tracer"
default n
depends on TRACE_IRQFLAGS_SUPPORT
depends on !ARCH_USES_GETTIMEOFFSET
select TRACE_IRQFLAGS
select GENERIC_TRACER
select TRACER_MAX_TRACE
@ -277,7 +276,6 @@ config IRQSOFF_TRACER
config PREEMPT_TRACER
bool "Preemption-off Latency Tracer"
default n
depends on !ARCH_USES_GETTIMEOFFSET
depends on PREEMPTION
select GENERIC_TRACER
select TRACER_MAX_TRACE