diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-21 10:35:11 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-21 10:35:11 -0800 |
commit | 8552d28e140110fc935b39a6bfaf33c8ce3a1ad5 (patch) | |
tree | 8102bc58bb5be253a7df0993d8d06a128cbc125e /arch/m68k | |
parent | 70990afa34fbac03ade78e2ad0ccd418acecfc04 (diff) | |
parent | 8b22820efb35f93d98638563b0a8f4094e8ee399 (diff) |
Merge tag 'm68knommu-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
- cleanup of 68328 code
- align BSS section to 32bit
* tag 'm68knommu-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: m68328: remove duplicate code
m68k: m68328: move platform code to separate files
m68knommu: align BSS section to 4-byte boundaries
Diffstat (limited to 'arch/m68k')
-rw-r--r-- | arch/m68k/68000/Makefile | 9 | ||||
-rw-r--r-- | arch/m68k/68000/dragen2.c | 100 | ||||
-rw-r--r-- | arch/m68k/68000/m68328.c | 32 | ||||
-rw-r--r-- | arch/m68k/68000/m68328.h | 5 | ||||
-rw-r--r-- | arch/m68k/68000/m68EZ328.c | 77 | ||||
-rw-r--r-- | arch/m68k/68000/m68VZ328.c | 189 | ||||
-rw-r--r-- | arch/m68k/68000/ucsimm.c | 38 | ||||
-rw-r--r-- | arch/m68k/Kconfig.cpu | 8 | ||||
-rw-r--r-- | arch/m68k/Kconfig.machine | 16 | ||||
-rw-r--r-- | arch/m68k/kernel/setup_no.c | 9 | ||||
-rw-r--r-- | arch/m68k/kernel/vmlinux-nommu.lds | 2 |
11 files changed, 192 insertions, 293 deletions
diff --git a/arch/m68k/68000/Makefile b/arch/m68k/68000/Makefile index 4f7d4b45a46f..674541fdf5b8 100644 --- a/arch/m68k/68000/Makefile +++ b/arch/m68k/68000/Makefile @@ -10,10 +10,11 @@ # 68328, 68EZ328, 68VZ328 -obj-y += entry.o ints.o timers.o -obj-$(CONFIG_M68328) += m68328.o -obj-$(CONFIG_M68EZ328) += m68EZ328.o -obj-$(CONFIG_M68VZ328) += m68VZ328.o +obj-y += entry.o ints.o timers.o m68328.o obj-$(CONFIG_ROM) += romvec.o +obj-$(CONFIG_DRAGEN2) += dragen2.o +obj-$(CONFIG_UCSIMM) += ucsimm.o +obj-$(CONFIG_UCDIMM) += ucsimm.o + extra-y := head.o diff --git a/arch/m68k/68000/dragen2.c b/arch/m68k/68000/dragen2.c new file mode 100644 index 000000000000..584893c57c37 --- /dev/null +++ b/arch/m68k/68000/dragen2.c @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * Copyright (C) 2001 Georges Menie, Ken Desmet + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <asm/machdep.h> +#include <asm/MC68VZ328.h> + +/***************************************************************************/ +/* Init Drangon Engine hardware */ +/***************************************************************************/ + +static void dragen2_reset(void) +{ + local_irq_disable(); + +#ifdef CONFIG_INIT_LCD + PBDATA |= 0x20; /* disable CCFL light */ + PKDATA |= 0x4; /* disable LCD controller */ + LCKCON = 0; +#endif + + __asm__ __volatile__( + "reset\n\t" + "moveal #0x04000000, %a0\n\t" + "moveal 0(%a0), %sp\n\t" + "moveal 4(%a0), %a0\n\t" + "jmp (%a0)" + ); +} + +void __init init_dragen2(char *command, int size) +{ + mach_reset = dragen2_reset; + +#ifdef CONFIG_DIRECT_IO_ACCESS + SCR = 0x10; /* allow user access to internal registers */ +#endif + + /* CSGB Init */ + CSGBB = 0x4000; + CSB = 0x1a1; + + /* CS8900 init */ + /* PK3: hardware sleep function pin, active low */ + PKSEL |= PK(3); /* select pin as I/O */ + PKDIR |= PK(3); /* select pin as output */ + PKDATA |= PK(3); /* set pin high */ + + /* PF5: hardware reset function pin, active high */ + PFSEL |= PF(5); /* select pin as I/O */ + PFDIR |= PF(5); /* select pin as output */ + PFDATA &= ~PF(5); /* set pin low */ + + /* cs8900 hardware reset */ + PFDATA |= PF(5); + { int i; for (i = 0; i < 32000; ++i); } + PFDATA &= ~PF(5); + + /* INT1 enable (cs8900 IRQ) */ + PDPOL &= ~PD(1); /* active high signal */ + PDIQEG &= ~PD(1); + PDIRQEN |= PD(1); /* IRQ enabled */ + +#ifdef CONFIG_INIT_LCD + /* initialize LCD controller */ + LSSA = (long) screen_bits; + LVPW = 0x14; + LXMAX = 0x140; + LYMAX = 0xef; + LRRA = 0; + LPXCD = 3; + LPICF = 0x08; + LPOLCF = 0; + LCKCON = 0x80; + PCPDEN = 0xff; + PCSEL = 0; + + /* Enable LCD controller */ + PKDIR |= 0x4; + PKSEL |= 0x4; + PKDATA &= ~0x4; + + /* Enable CCFL backlighting circuit */ + PBDIR |= 0x20; + PBSEL |= 0x20; + PBDATA &= ~0x20; + + /* contrast control register */ + PFDIR |= 0x1; + PFSEL &= ~0x1; + PWMR = 0x037F; +#endif +} diff --git a/arch/m68k/68000/m68328.c b/arch/m68k/68000/m68328.c index 419751b15ec8..eab08da058c6 100644 --- a/arch/m68k/68000/m68328.c +++ b/arch/m68k/68000/m68328.c @@ -1,10 +1,11 @@ /***************************************************************************/ /* - * m68328.c - 68328 specific config + * m68328.c - 68328/68EZ328/68VZ328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne + * Copyright (C) 2001 Georges Menie, Ken Desmet * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive @@ -20,18 +21,18 @@ #include <linux/kernel.h> #include <linux/rtc.h> #include <asm/machdep.h> -#include <asm/MC68328.h> -#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) + +#if defined(CONFIG_INIT_LCD) && defined(CONFIG_M68VZ328) +#include "bootlogo-vz.h" +#elif defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) #include "bootlogo.h" #endif -/***************************************************************************/ - -int m68328_hwclk(int set, struct rtc_time *t); +#include "m68328.h" /***************************************************************************/ -void m68328_reset (void) +static void m68328_reset(void) { local_irq_disable(); asm volatile ("moveal #0x10c00000, %a0;\n\t" @@ -45,12 +46,19 @@ void m68328_reset (void) void __init config_BSP(char *command, int len) { - pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); - pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); - pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); + mach_sched_init = hw_timer_init; + mach_hwclk = m68328_hwclk; + mach_reset = m68328_reset; - mach_hwclk = m68328_hwclk; - mach_reset = m68328_reset; +#if defined(CONFIG_PILOT) && defined(CONFIG_M68328) + mach_sched_init = NULL; +#elif defined(CONFIG_UCSIMM) + init_ucsimm(command, len); +#elif defined(CONFIG_UCDIMM) + init_ucsimm(command, len); +#elif defined(CONFIG_DRAGEN2) + init_dragen2(command, len); +#endif } /***************************************************************************/ diff --git a/arch/m68k/68000/m68328.h b/arch/m68k/68000/m68328.h new file mode 100644 index 000000000000..f6047c3168d4 --- /dev/null +++ b/arch/m68k/68000/m68328.h @@ -0,0 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0 +void init_dragen2(char *command, int size); +void init_ucsimm(char *command, int size); +struct rtc_time; +int m68328_hwclk(int set, struct rtc_time *t); diff --git a/arch/m68k/68000/m68EZ328.c b/arch/m68k/68000/m68EZ328.c deleted file mode 100644 index 05f137dc257e..000000000000 --- a/arch/m68k/68000/m68EZ328.c +++ /dev/null @@ -1,77 +0,0 @@ -/***************************************************************************/ - -/* - * m68EZ328.c - 68EZ328 specific config - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/***************************************************************************/ - -#include <linux/init.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/rtc.h> -#include <linux/pgtable.h> -#include <asm/machdep.h> -#include <asm/MC68EZ328.h> -#ifdef CONFIG_UCSIMM -#include <asm/bootstd.h> -#endif - -/***************************************************************************/ - -int m68328_hwclk(int set, struct rtc_time *t); - -/***************************************************************************/ - -void m68ez328_reset(void) -{ - local_irq_disable(); - asm volatile ( - "moveal #0x10c00000, %a0;\n" - "moveb #0, 0xFFFFF300;\n" - "moveal 0(%a0), %sp;\n" - "moveal 4(%a0), %a0;\n" - "jmp (%a0);\n" - ); -} - -/***************************************************************************/ - -unsigned char *cs8900a_hwaddr; -static int errno; - -#ifdef CONFIG_UCSIMM -_bsc0(char *, getserialnum) -_bsc1(unsigned char *, gethwaddr, int, a) -_bsc1(char *, getbenv, char *, a) -#endif - -void __init config_BSP(char *command, int len) -{ - unsigned char *p; - - pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n"); - -#ifdef CONFIG_UCSIMM - pr_info("uCsimm serial string [%s]\n", getserialnum()); - p = cs8900a_hwaddr = gethwaddr(0); - pr_info("uCsimm hwaddr %pM\n", p); - - p = getbenv("APPEND"); - if (p) strcpy(p,command); - else command[0] = 0; -#endif - - mach_sched_init = hw_timer_init; - mach_hwclk = m68328_hwclk; - mach_reset = m68ez328_reset; -} - -/***************************************************************************/ diff --git a/arch/m68k/68000/m68VZ328.c b/arch/m68k/68000/m68VZ328.c deleted file mode 100644 index ada87b23afdc..000000000000 --- a/arch/m68k/68000/m68VZ328.c +++ /dev/null @@ -1,189 +0,0 @@ -/***************************************************************************/ - -/* - * m68VZ328.c - 68VZ328 specific config - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * Copyright (C) 2001 Georges Menie, Ken Desmet - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/***************************************************************************/ - -#include <linux/init.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/kd.h> -#include <linux/netdevice.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/rtc.h> -#include <linux/pgtable.h> - -#include <asm/machdep.h> -#include <asm/MC68VZ328.h> -#include <asm/bootstd.h> - -#ifdef CONFIG_INIT_LCD -#include "bootlogo-vz.h" -#endif - -/***************************************************************************/ - -int m68328_hwclk(int set, struct rtc_time *t); - -/***************************************************************************/ -/* Init Drangon Engine hardware */ -/***************************************************************************/ -#if defined(CONFIG_DRAGEN2) - -static void m68vz328_reset(void) -{ - local_irq_disable(); - -#ifdef CONFIG_INIT_LCD - PBDATA |= 0x20; /* disable CCFL light */ - PKDATA |= 0x4; /* disable LCD controller */ - LCKCON = 0; -#endif - - __asm__ __volatile__( - "reset\n\t" - "moveal #0x04000000, %a0\n\t" - "moveal 0(%a0), %sp\n\t" - "moveal 4(%a0), %a0\n\t" - "jmp (%a0)" - ); -} - -static void __init init_hardware(char *command, int size) -{ -#ifdef CONFIG_DIRECT_IO_ACCESS - SCR = 0x10; /* allow user access to internal registers */ -#endif - - /* CSGB Init */ - CSGBB = 0x4000; - CSB = 0x1a1; - - /* CS8900 init */ - /* PK3: hardware sleep function pin, active low */ - PKSEL |= PK(3); /* select pin as I/O */ - PKDIR |= PK(3); /* select pin as output */ - PKDATA |= PK(3); /* set pin high */ - - /* PF5: hardware reset function pin, active high */ - PFSEL |= PF(5); /* select pin as I/O */ - PFDIR |= PF(5); /* select pin as output */ - PFDATA &= ~PF(5); /* set pin low */ - - /* cs8900 hardware reset */ - PFDATA |= PF(5); - { int i; for (i = 0; i < 32000; ++i); } - PFDATA &= ~PF(5); - - /* INT1 enable (cs8900 IRQ) */ - PDPOL &= ~PD(1); /* active high signal */ - PDIQEG &= ~PD(1); - PDIRQEN |= PD(1); /* IRQ enabled */ - -#ifdef CONFIG_INIT_LCD - /* initialize LCD controller */ - LSSA = (long) screen_bits; - LVPW = 0x14; - LXMAX = 0x140; - LYMAX = 0xef; - LRRA = 0; - LPXCD = 3; - LPICF = 0x08; - LPOLCF = 0; - LCKCON = 0x80; - PCPDEN = 0xff; - PCSEL = 0; - - /* Enable LCD controller */ - PKDIR |= 0x4; - PKSEL |= 0x4; - PKDATA &= ~0x4; - - /* Enable CCFL backlighting circuit */ - PBDIR |= 0x20; - PBSEL |= 0x20; - PBDATA &= ~0x20; - - /* contrast control register */ - PFDIR |= 0x1; - PFSEL &= ~0x1; - PWMR = 0x037F; -#endif -} - -/***************************************************************************/ -/* Init RT-Control uCdimm hardware */ -/***************************************************************************/ -#elif defined(CONFIG_UCDIMM) - -static void m68vz328_reset(void) -{ - local_irq_disable(); - asm volatile ( - "moveal #0x10c00000, %a0;\n\t" - "moveb #0, 0xFFFFF300;\n\t" - "moveal 0(%a0), %sp;\n\t" - "moveal 4(%a0), %a0;\n\t" - "jmp (%a0);\n" - ); -} - -unsigned char *cs8900a_hwaddr; -static int errno; - -_bsc0(char *, getserialnum) -_bsc1(unsigned char *, gethwaddr, int, a) -_bsc1(char *, getbenv, char *, a) - -static void __init init_hardware(char *command, int size) -{ - char *p; - - pr_info("uCdimm serial string [%s]\n", getserialnum()); - p = cs8900a_hwaddr = gethwaddr(0); - pr_info("uCdimm hwaddr %pM\n", p); - p = getbenv("APPEND"); - if (p) - strcpy(p, command); - else - command[0] = 0; -} - -/***************************************************************************/ -#else - -static void m68vz328_reset(void) -{ -} - -static void __init init_hardware(char *command, int size) -{ -} - -/***************************************************************************/ -#endif -/***************************************************************************/ - -void __init config_BSP(char *command, int size) -{ - pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); - - init_hardware(command, size); - - mach_sched_init = hw_timer_init; - mach_hwclk = m68328_hwclk; - mach_reset = m68vz328_reset; -} - -/***************************************************************************/ diff --git a/arch/m68k/68000/ucsimm.c b/arch/m68k/68000/ucsimm.c new file mode 100644 index 000000000000..7c6cbf643712 --- /dev/null +++ b/arch/m68k/68000/ucsimm.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * Copyright (C) 2001 Georges Menie, Ken Desmet + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <asm/bootstd.h> +#include <asm/machdep.h> +#include <asm/MC68VZ328.h> + + +#include "m68328.h" + +unsigned char *cs8900a_hwaddr; +static int errno; + +_bsc0(char *, getserialnum) +_bsc1(unsigned char *, gethwaddr, int, a) +_bsc1(char *, getbenv, char *, a) + +void __init init_ucsimm(char *command, int size) +{ + char *p; + + pr_info("uCsimm/uCdimm serial string [%s]\n", getserialnum()); + p = cs8900a_hwaddr = gethwaddr(0); + pr_info("uCsimm/uCdimm hwaddr %pM\n", p); + p = getbenv("APPEND"); + if (p) + strcpy(p, command); + else + command[0] = 0; +} diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 7246aa50298e..f4d23977d2a5 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -36,7 +36,7 @@ endchoice if M68KCLASSIC config M68000 - bool "MC68000" + bool depends on !MMU select CPU_HAS_NO_BITFIELDS select CPU_HAS_NO_MULDIV64 @@ -103,7 +103,7 @@ config M68060 processor, say Y. Otherwise, say N. config M68328 - bool "MC68328" + bool depends on !MMU select LEGACY_TIMER_TICK select M68000 @@ -111,7 +111,7 @@ config M68328 Motorola 68328 processor support. config M68EZ328 - bool "MC68EZ328" + bool depends on !MMU select LEGACY_TIMER_TICK select M68000 @@ -119,7 +119,7 @@ config M68EZ328 Motorola 68EX328 processor support. config M68VZ328 - bool "MC68VZ328" + bool depends on !MMU select LEGACY_TIMER_TICK select M68000 diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine index cf6961d4e657..4d59ec2f5b8d 100644 --- a/arch/m68k/Kconfig.machine +++ b/arch/m68k/Kconfig.machine @@ -145,14 +145,13 @@ config SUN3 If you don't want to compile a kernel exclusively for a Sun 3, say N. -endif # M68KCLASSIC - config PILOT bool config PILOT3 bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support" - depends on M68328 + depends on !MMU + select M68328 select PILOT help Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII. @@ -165,19 +164,22 @@ config XCOPILOT_BUGS config UCSIMM bool "uCsimm module support" - depends on M68EZ328 + depends on !MMU + select M68EZ328 help Support for the Arcturus Networks uCsimm module. config UCDIMM bool "uDsimm module support" - depends on M68VZ328 + depends on !MMU + select M68VZ328 help Support for the Arcturus Networks uDsimm module. config DRAGEN2 bool "DragenEngine II board support" - depends on M68VZ328 + depends on !MMU + select M68VZ328 help Support for the DragenEngine II board. @@ -200,6 +202,8 @@ config MEMORY_RESERVE help Reserve certain memory regions on 68x328 based boards. +endif # M68KCLASSIC + config ARN5206 bool "Arnewsh 5206 board support" depends on M5206 diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c index e377b4219528..d1b7988efc91 100644 --- a/arch/m68k/kernel/setup_no.c +++ b/arch/m68k/kernel/setup_no.c @@ -106,8 +106,16 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_UCDIMM pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n"); #endif +#ifdef CONFIG_M68328 + pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); + pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); +#endif +#ifdef CONFIG_M68EZ328 + pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n"); +#endif #ifdef CONFIG_M68VZ328 pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); + pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); #endif #ifdef CONFIG_COLDFIRE pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); @@ -121,6 +129,7 @@ void __init setup_arch(char **cmdline_p) pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); #if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) + pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n"); #endif #if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds index 396e126a4258..387f334e87d3 100644 --- a/arch/m68k/kernel/vmlinux-nommu.lds +++ b/arch/m68k/kernel/vmlinux-nommu.lds @@ -81,7 +81,7 @@ SECTIONS { __init_end = .; } - BSS_SECTION(0, 0, 0) + BSS_SECTION(4, 0, 4) _end = .; |