diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index cc26df907bfe..7c4f7bcc89d7 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -84,24 +84,23 @@ config MMU support by paged memory management. If unsure, say 'Y'. config MMU_MOTOROLA - bool + def_bool MMU && M68KCLASSIC select HAVE_PAGE_SIZE_4KB config MMU_COLDFIRE + def_bool MMU && COLDFIRE select HAVE_PAGE_SIZE_8KB - bool config MMU_SUN3 - bool + def_bool MMU && SUN3 select HAVE_PAGE_SIZE_8KB - depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE config ARCH_SUPPORTS_KEXEC - def_bool M68KCLASSIC && MMU + def_bool (M68KCLASSIC || SUN3) && MMU config BOOTINFO_PROC bool "Export bootinfo in procfs" - depends on KEXEC && M68KCLASSIC + depends on KEXEC && (M68KCLASSIC || SUN3) help Say Y to export the bootinfo used to boot the kernel in a "bootinfo" file in procfs. This is useful with kexec. diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index c777a129768a..c9a7e602d8a4 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -2,7 +2,7 @@ comment "Processor Type" choice - prompt "CPU family support" + prompt "CPU/machine family support" default M68KCLASSIC if MMU default COLDFIRE if !MMU help @@ -19,8 +19,9 @@ choice processor, select COLDFIRE. config M68KCLASSIC - bool "Classic M68K CPU family support" + bool "Classic M68K CPU/machine family support" select HAVE_ARCH_PFN_VALID + select M68020 if MMU && !(M68030 || M68040 || M68060) config COLDFIRE bool "Coldfire CPU family support" @@ -32,13 +33,23 @@ config COLDFIRE select HAVE_LEGACY_CLK select HAVE_PAGE_SIZE_8KB if !MMU +config SUN3 + bool "Sun3 machine support" + depends on MMU + select HAVE_ARCH_PFN_VALID + select LEGACY_TIMER_TICK + select NO_DMA + select M68020 + help + This option enables support for the Sun 3 series of workstations + (3/50, 3/60, 3/1xx, 3/2xx systems). These use a classic 68020 CPU + but the custom memory management unit makes them incompatible with + all other classic m68k machines, including Sun 3x. + endchoice -if M68KCLASSIC - config M68000 - def_bool y - depends on !MMU + def_bool M68KCLASSIC && !MMU select CPU_HAS_NO_BITFIELDS select CPU_HAS_NO_CAS select CPU_HAS_NO_MULDIV64 @@ -56,7 +67,7 @@ config M68000 a paging MMU. config M68020 - bool "68020 support" + bool "68020 support" if M68KCLASSIC depends on MMU select FPU select CPU_HAS_ADDRESS_SPACES @@ -66,9 +77,10 @@ config M68020 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the Sun 3, which provides its own version. +if M68KCLASSIC && MMU + config M68030 bool "68030 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help @@ -78,7 +90,6 @@ config M68030 config M68040 bool "68040 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help @@ -89,13 +100,14 @@ config M68040 config M68060 bool "68060 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help If you anticipate running this kernel on a computer with a MC68060 processor, say Y. Otherwise, say N. +endif # M68KCLASSIC + config M68328 bool depends on !MMU @@ -117,8 +129,6 @@ config M68VZ328 help Motorola 68VZ328 processor support. -endif # M68KCLASSIC - if COLDFIRE choice @@ -325,7 +335,7 @@ comment "Processor Specific Options" config M68KFPU_EMU bool "Math emulation support" - depends on M68KCLASSIC && FPU + depends on (M68KCLASSIC || SUN3) && FPU help At some point in the future, this will cause floating-point math instructions to be emulated by the kernel on machines that lack a diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine index d06b1c5d9b0c..de39f23b180e 100644 --- a/arch/m68k/Kconfig.machine +++ b/arch/m68k/Kconfig.machine @@ -6,7 +6,6 @@ if M68KCLASSIC 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 @@ -16,7 +15,6 @@ config AMIGA config ATARI bool "Atari support" depends on MMU - select MMU_MOTOROLA if MMU select HAVE_ARCH_NVRAM_OPS select LEGACY_TIMER_TICK help @@ -31,7 +29,6 @@ config ATARI_KBD_CORE config MAC bool "Macintosh support" depends on MMU - select MMU_MOTOROLA if MMU select HAVE_ARCH_NVRAM_OPS select HAVE_PATA_PLATFORM select LEGACY_TIMER_TICK @@ -44,7 +41,6 @@ config MAC 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 @@ -53,7 +49,6 @@ config APOLLO config VME bool "VME (Motorola and BVM) support" depends on MMU - select MMU_MOTOROLA if MMU help Say Y here if you want to build a kernel for a 680x0 based VME board. Boards currently supported include Motorola boards MVME147, @@ -97,7 +92,6 @@ config BVME6000 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 @@ -110,7 +104,6 @@ config SUN3X bool "Sun3x support" depends on MMU select LEGACY_TIMER_TICK - select MMU_MOTOROLA if MMU select M68030 help This option enables support for the Sun 3x series of workstations. @@ -124,7 +117,6 @@ config SUN3X 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 @@ -133,22 +125,6 @@ config Q40 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU emulation. -config SUN3 - bool "Sun3 support" - depends on MMU - depends on !MMU_MOTOROLA - select MMU_SUN3 if MMU - select LEGACY_TIMER_TICK - select NO_DMA - select M68020 - help - This option enables support for the Sun 3 series of workstations - (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires - that all other hardware types must be disabled, as Sun 3 kernels - are incompatible with all other m68k targets (including Sun 3x!). - - If you don't want to compile a kernel exclusively for a Sun 3, say N. - config VIRT bool "Virtual M68k Machine support" depends on MMU @@ -157,7 +133,6 @@ config VIRT select GOLDFISH_TIMER select GOLDFISH_TTY select M68040 - select MMU_MOTOROLA if MMU select RTC_CLASS select RTC_DRV_GOLDFISH select TTY diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index d01dc47d52ea..a70aec9a05c4 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -620,6 +620,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 46808e581d7b..312853f3d26a 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -577,6 +577,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index 4469a7839c9d..0853e4358de9 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -597,6 +597,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index c0719322c028..f738202d1f36 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -569,6 +569,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index 8d429e63f8f2..74f74e03ccc9 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -579,6 +579,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index bafd33da27c1..14c8f1b374aa 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -596,6 +596,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index 6f5ca3f85ea1..41c8112c6d0d 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -682,6 +682,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index d16b328c7136..e72d37ee90a7 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -568,6 +568,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 80f6c15a5ed5..733f1fc9a50a 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -569,6 +569,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 0e81589f0ee2..3efe25435561 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -586,6 +586,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 8cd785290339..1b8ea0e7acb4 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -566,6 +566,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 78035369f60f..5bda93f6a200 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -567,6 +567,7 @@ CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m CONFIG_TEST_DIV64=m +CONFIG_TEST_MULDIV64=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 14992fde7340..2263e92d418a 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -28,10 +28,8 @@ #define NR_IRQS 32 #elif defined(CONFIG_APOLLO) #define NR_IRQS 24 -#elif defined(CONFIG_HP300) +#else /* CONFIG_HP300 etc. */ #define NR_IRQS 8 -#else -#define NR_IRQS 0 #endif #if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \ diff --git a/arch/m68k/include/asm/mvme147hw.h b/arch/m68k/include/asm/mvme147hw.h index e28eb1c0e0bf..dbf88059e47a 100644 --- a/arch/m68k/include/asm/mvme147hw.h +++ b/arch/m68k/include/asm/mvme147hw.h @@ -93,8 +93,8 @@ struct pcc_regs { #define M147_SCC_B_ADDR 0xfffe3000 #define M147_SCC_PCLK 5000000 -#define MVME147_IRQ_SCSI_PORT (IRQ_USER+0x45) -#define MVME147_IRQ_SCSI_DMA (IRQ_USER+0x46) +#define MVME147_IRQ_SCSI_PORT (IRQ_USER + 5) +#define MVME147_IRQ_SCSI_DMA (IRQ_USER + 6) /* SCC interrupts, for MVME147 */ diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index f335bf3268a1..6c732ed3998b 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -5,16 +5,8 @@ extra-y += vmlinux.lds -obj-$(CONFIG_AMIGA) := head.o -obj-$(CONFIG_ATARI) := head.o -obj-$(CONFIG_MAC) := head.o -obj-$(CONFIG_APOLLO) := head.o -obj-$(CONFIG_VME) := head.o -obj-$(CONFIG_HP300) := head.o -obj-$(CONFIG_Q40) := head.o -obj-$(CONFIG_SUN3X) := head.o -obj-$(CONFIG_VIRT) := head.o -obj-$(CONFIG_SUN3) := sun3-head.o +obj-$(CONFIG_MMU_MOTOROLA) := head.o +obj-$(CONFIG_SUN3) := sun3-head.o obj-y += entry.o irq.o module.o process.o ptrace.o obj-y += setup.o signal.o sys_m68k.o syscalltable.o time.o traps.o diff --git a/arch/m68k/kernel/early_printk.c b/arch/m68k/kernel/early_printk.c index 3cc944df04f6..f11ef9f1f56f 100644 --- a/arch/m68k/kernel/early_printk.c +++ b/arch/m68k/kernel/early_printk.c @@ -13,6 +13,7 @@ #include +#include "../mvme147/mvme147.h" #include "../mvme16x/mvme16x.h" asmlinkage void __init debug_cons_nputs(const char *s, unsigned n); @@ -22,7 +23,9 @@ static void __ref debug_cons_write(struct console *c, { #if !(defined(CONFIG_SUN3) || defined(CONFIG_M68000) || \ defined(CONFIG_COLDFIRE)) - if (MACH_IS_MVME16x) + if (MACH_IS_MVME147) + mvme147_scc_write(c, s, n); + else if (MACH_IS_MVME16x) mvme16x_cons_write(c, s, n); else debug_cons_nputs(s, n); diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c index 10310b04f77d..15c1a595a1de 100644 --- a/arch/m68k/kernel/setup_mm.c +++ b/arch/m68k/kernel/setup_mm.c @@ -249,7 +249,11 @@ void __init setup_arch(char **cmdline_p) process_uboot_commandline(&m68k_command_line[0], CL_SIZE); *cmdline_p = m68k_command_line; memcpy(boot_command_line, *cmdline_p, CL_SIZE); - + /* + * Initialise the static keys early as they may be enabled by the + * cpufeature code and early parameters. + */ + jump_label_init(); parse_early_param(); switch (m68k_machtype) { diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index a97600b2af50..acd4c2da562b 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -62,7 +62,7 @@ void timer_heartbeat(void) } #endif /* CONFIG_HEARTBEAT */ -#ifdef CONFIG_M68KCLASSIC +#if defined(CONFIG_M68KCLASSIC) || defined(CONFIG_SUN3) /* machine dependent timer functions */ int (*mach_hwclk) (int, struct rtc_time*); EXPORT_SYMBOL(mach_hwclk); @@ -149,7 +149,7 @@ static int __init rtc_init(void) module_init(rtc_init); #endif /* CONFIG_RTC_DRV_GENERIC */ -#endif /* CONFIG M68KCLASSIC */ +#endif /* CONFIG_M68KCLASSIC || SUN3 */ void __init time_init(void) { diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index 53d0cf343d90..d2f25e8895e5 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -383,7 +383,7 @@ static inline void bus_error030 (struct frame *fp) fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); if (ssw & DF) pr_debug("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", + str_read_write(ssw & RW), fp->un.fmtb.daddr, space_names[ssw & DFC], fp->ptregs.pc); @@ -419,7 +419,7 @@ static inline void bus_error030 (struct frame *fp) } pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", + str_read_write(ssw & RW), fp->un.fmtb.daddr, space_names[ssw & DFC], fp->ptregs.pc); } @@ -455,7 +455,7 @@ static inline void bus_error030 (struct frame *fp) pr_debug("*** unexpected busfault type=%#04x\n", buserr_type); pr_debug("invalid %s access at %#lx from pc %#lx\n", - !(ssw & RW) ? "write" : "read", addr, + str_read_write(ssw & RW), addr, fp->ptregs.pc); die_if_kernel ("Oops", &fp->ptregs, buserr_type); force_sig (SIGBUS); @@ -514,7 +514,7 @@ static inline void bus_error030 (struct frame *fp) fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); if (ssw & DF) pr_debug("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", + str_read_write(ssw & RW), fp->un.fmtb.daddr, space_names[ssw & DFC], fp->ptregs.pc); @@ -548,7 +548,7 @@ static inline void bus_error030 (struct frame *fp) /* We might have an exception table for this PC */ if (ssw & 4 && !search_exception_tables(fp->ptregs.pc)) { pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", + str_read_write(ssw & RW), fp->un.fmtb.daddr, space_names[ssw & DFC], fp->ptregs.pc); goto buserr; @@ -564,7 +564,7 @@ static inline void bus_error030 (struct frame *fp) mmusr); } else if (mmusr & (MMU_B|MMU_L|MMU_S)) { pr_err("invalid %s access at %#lx from pc %#lx\n", - !(ssw & RW) ? "write" : "read", addr, + str_read_write(ssw & RW), addr, fp->ptregs.pc); die_if_kernel("Oops",&fp->ptregs,mmusr); force_sig(SIGSEGV); @@ -575,7 +575,7 @@ static inline void bus_error030 (struct frame *fp) #endif pr_err("weird %s access at %#lx from pc %#lx (ssw is %#x)\n", - !(ssw & RW) ? "write" : "read", addr, + str_read_write(ssw & RW), addr, fp->ptregs.pc, ssw); asm volatile ("ptestr #1,%1@,#0\n\t" "pmove %%psr,%0" @@ -991,7 +991,7 @@ static void bad_super_trap(struct frame *fp) fp->ptregs.pc + 4 : fp->un.fmtb.baddr); if (ssw & DF) pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", + str_read_write(ssw & RW), fp->un.fmtb.daddr, space_names[ssw & DFC], fp->ptregs.pc); } diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index 8b5dc07f0811..824c42a302c6 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -32,9 +32,10 @@ #include #include +#include "mvme147.h" static void mvme147_get_model(char *model); -extern void mvme147_sched_init(void); +static void __init mvme147_sched_init(void); extern int mvme147_hwclk (int, struct rtc_time *); extern void mvme147_reset (void); @@ -123,7 +124,7 @@ static irqreturn_t mvme147_timer_int (int irq, void *dev_id) } -void mvme147_sched_init (void) +static void __init mvme147_sched_init(void) { if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, IRQF_TIMER, "timer 1", NULL)) @@ -185,3 +186,32 @@ int mvme147_hwclk(int op, struct rtc_time *t) } return 0; } + +static void scc_delay(void) +{ + __asm__ __volatile__ ("nop; nop;"); +} + +static void scc_write(char ch) +{ + do { + scc_delay(); + } while (!(in_8(M147_SCC_A_ADDR) & BIT(2))); + scc_delay(); + out_8(M147_SCC_A_ADDR, 8); + scc_delay(); + out_8(M147_SCC_A_ADDR, ch); +} + +void mvme147_scc_write(struct console *co, const char *str, unsigned int count) +{ + unsigned long flags; + + local_irq_save(flags); + while (count--) { + if (*str == '\n') + scc_write('\r'); + scc_write(*str++); + } + local_irq_restore(flags); +} diff --git a/arch/m68k/mvme147/mvme147.h b/arch/m68k/mvme147/mvme147.h new file mode 100644 index 000000000000..140bc98b0102 --- /dev/null +++ b/arch/m68k/mvme147/mvme147.h @@ -0,0 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +struct console; + +/* config.c */ +void mvme147_scc_write(struct console *co, const char *str, unsigned int count);