[PATCH] Platform code merge for 68000 core cpus
Luis Alves <[email protected]>
| Newsgroups | gmane.linux.ports.m68k,gmane.linux.uclinux.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi, I think I've fixed all those minor issues. Also, following the same scheme as in the coldfire directory, I've renamed cpu specific files to match the cpu name. Regards, Luis Signed-off-by: Luis Alves <[email protected]> --- arch/m68k/Kconfig.cpu | 2 +- arch/m68k/Makefile | 6 +- arch/m68k/platform/68000/Makefile | 18 ++ .../{68VZ328/bootlogo.h => 68000/bootlogo-vz.h} | 0 arch/m68k/platform/{68328 => 68000}/bootlogo.h | 0 arch/m68k/platform/{68328 => 68000}/entry.S | 0 arch/m68k/platform/68000/head.S | 240 ++++++++++++++++++++ arch/m68k/platform/{68328 => 68000}/ints.c | 2 +- .../platform/{68328/config.c => 68000/m68328.c} | 2 +- .../{68EZ328/config.c => 68000/m68EZ328.c} | 2 +- .../{68VZ328/config.c => 68000/m68VZ328.c} | 4 +- arch/m68k/platform/{68328 => 68000}/romvec.S | 2 +- arch/m68k/platform/{68328 => 68000}/timers.c | 2 +- arch/m68k/platform/68328/Makefile | 21 -- arch/m68k/platform/68328/head-de2.S | 128 ----------- arch/m68k/platform/68328/head-pilot.S | 207 ----------------- arch/m68k/platform/68328/head-ram.S | 141 ------------ arch/m68k/platform/68328/head-rom.S | 105 --------- arch/m68k/platform/68EZ328/Makefile | 5 - arch/m68k/platform/68VZ328/Makefile | 5 - 20 files changed, 268 insertions(+), 624 deletions(-) create mode 100644 arch/m68k/platform/68000/Makefile rename arch/m68k/platform/{68VZ328/bootlogo.h => 68000/bootlogo-vz.h} (100%) rename arch/m68k/platform/{68328 => 68000}/bootlogo.h (100%) rename arch/m68k/platform/{68328 => 68000}/entry.S (100%) create mode 100644 arch/m68k/platform/68000/head.S rename arch/m68k/platform/{68328 => 68000}/ints.c (98%) rename arch/m68k/platform/{68328/config.c => 68000/m68328.c} (97%) rename arch/m68k/platform/{68EZ328/config.c => 68000/m68EZ328.c} (97%) rename arch/m68k/platform/{68VZ328/config.c => 68000/m68VZ328.c} (98%) rename arch/m68k/platform/{68328 => 68000}/romvec.S (94%) rename arch/m68k/platform/{68328 => 68000}/timers.c (98%) delete mode 100644 arch/m68k/platform/68328/Makefile delete mode 100644 arch/m68k/platform/68328/head-de2.S delete mode 100644 arch/m68k/platform/68328/head-pilot.S delete mode 100644 arch/m68k/platform/68328/head-ram.S delete mode 100644 arch/m68k/platform/68328/head-rom.S delete mode 100644 arch/m68k/platform/68EZ328/Makefile delete mode 100644 arch/m68k/platform/68VZ328/Makefile diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index c4eb79e..aad3b0b 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -35,7 +35,7 @@ endchoice if M68KCLASSIC config M68000 - bool + bool "MC68000" select CPU_HAS_NO_BITFIELDS select CPU_HAS_NO_MULDIV64 select CPU_HAS_NO_UNALIGNED diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 7636751..2f02acf 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -92,7 +92,7 @@ endif head-y := arch/m68k/kernel/head.o head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o head-$(CONFIG_M68360) := arch/m68k/platform/68360/head.o -head-$(CONFIG_M68000) := arch/m68k/platform/68328/head.o +head-$(CONFIG_M68000) := arch/m68k/platform/68000/head.o head-$(CONFIG_COLDFIRE) := arch/m68k/platform/coldfire/head.o core-y += arch/m68k/kernel/ arch/m68k/mm/ @@ -114,9 +114,7 @@ core-$(CONFIG_M68040) += arch/m68k/fpsp040/ core-$(CONFIG_M68060) += arch/m68k/ifpsp060/ core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/ core-$(CONFIG_M68360) += arch/m68k/platform/68360/ -core-$(CONFIG_M68000) += arch/m68k/platform/68328/ -core-$(CONFIG_M68EZ328) += arch/m68k/platform/68EZ328/ -core-$(CONFIG_M68VZ328) += arch/m68k/platform/68VZ328/ +core-$(CONFIG_M68000) += arch/m68k/platform/68000/ core-$(CONFIG_COLDFIRE) += arch/m68k/platform/coldfire/ diff --git a/arch/m68k/platform/68000/Makefile b/arch/m68k/platform/68000/Makefile new file mode 100644 index 0000000..1eab70c --- /dev/null +++ b/arch/m68k/platform/68000/Makefile @@ -0,0 +1,18 @@ +################################################## +# +# Makefile for 68000 core based cpus +# +# 2012.10.21, Luis Alves <[email protected]> +# Merged all 68000 based cpu's config +# files into a single directory. +# + +# 68328, 68EZ328, 68VZ328 + +obj-y += entry.o ints.o timers.o +obj-$(CONFIG_M68328) += m68328.o +obj-$(CONFIG_M68EZ328) += m68EZ328.o +obj-$(CONFIG_M68VZ328) += m68VZ328.o +obj-$(CONFIG_ROM) += romvec.o + +extra-y := head.o diff --git a/arch/m68k/platform/68VZ328/bootlogo.h b/arch/m68k/platform/68000/bootlogo-vz.h similarity index 100% rename from arch/m68k/platform/68VZ328/bootlogo.h rename to arch/m68k/platform/68000/bootlogo-vz.h diff --git a/arch/m68k/platform/68328/bootlogo.h b/arch/m68k/platform/68000/bootlogo.h similarity index 100% rename from arch/m68k/platform/68328/bootlogo.h rename to arch/m68k/platform/68000/bootlogo.h diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68000/entry.S similarity index 100% rename from arch/m68k/platform/68328/entry.S rename to arch/m68k/platform/68000/entry.S diff --git a/arch/m68k/platform/68000/head.S b/arch/m68k/platform/68000/head.S new file mode 100644 index 0000000..5d65547 --- /dev/null +++ b/arch/m68k/platform/68000/head.S @@ -0,0 +1,240 @@ +/* + * head.S - Common startup code for 68000 core based CPU's + * + * 2012.10.21, Luis Alves <[email protected]>, Single head.S file for all + * 68000 core based CPU's. Based on the sources from: + * Coldfire by Greg Ungerer <[email protected]> + * 68328 by D. Jeff Dionne <[email protected]>, + * Kenneth Albanowski <[email protected]>, + * The Silver Hammer Group, Ltd. + * + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> + + +/***************************************************************************** + * UCSIMM and UCDIMM use CONFIG_MEMORY_RESERVE to reserve some RAM + *****************************************************************************/ +#ifdef CONFIG_MEMORY_RESERVE +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE)-(CONFIG_MEMORY_RESERVE*0x100000) +#else +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE) +#endif +/*****************************************************************************/ + +.global _start +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) +.global bootlogo_bits +#endif + +/* Defining DEBUG_HEAD_CODE, serial port in 68x328 is inited */ +/* #define DEBUG_HEAD_CODE */ +#undef DEBUG_HEAD_CODE + +.data + +/***************************************************************************** + * RAM setup pointers. Used by the kernel to determine RAM location and size. + *****************************************************************************/ + +_rambase: + .long 0 +_ramvec: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 + +__HEAD + +/***************************************************************************** + * Entry point, where all begins! + *****************************************************************************/ + +_start: + +/* Pilot need this specific signature at the start of ROM */ +#ifdef CONFIG_PILOT + .byte 0x4e, 0xfa, 0x00, 0x0a /* bra opcode (jmp 10 bytes) */ + .byte 'b', 'o', 'o', 't' + .word 10000 + nop + moveq #0, %d0 + movew %d0, 0xfffff618 /* Watchdog off */ + movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ +#endif /* CONFIG_PILOT */ + + movew #0x2700, %sr /* disable all interrupts */ + +/***************************************************************************** + * Setup PLL and wait for it to settle (in 68x328 cpu's). + * Also, if enabled, init serial port. + *****************************************************************************/ +#if defined(CONFIG_M68328) || \ + defined(CONFIG_M68EZ328) || \ + defined(CONFIG_M68VZ328) + +/* Serial port setup. Should only be needed if debugging this startup code. */ +#ifdef DEBUG_HEAD_CODE + movew #0x0800, 0xfffff906 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + movew #0xe100, 0xfffff900 /* enable */ +#endif /* DEBUG_HEAD */ + +#ifdef CONFIG_PILOT + movew #0x2410, 0xfffff200 /* PLLCR */ +#else + movew #0x2400, 0xfffff200 /* PLLCR */ +#endif + movew #0x0123, 0xfffff202 /* PLLFSR */ + moveq #0, %d0 + movew #16384, %d0 /* PLL settle wait loop */ +_pll_settle: + subw #1, %d0 + bne _pll_settle +#endif /* CONFIG_M68x328 */ + + +/***************************************************************************** + * If running kernel from ROM some specific initialization has to be done. + * (Assuming that everything is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_ROMKERNEL + +/***************************************************************************** + * Init chip registers (uCsimm specific) + *****************************************************************************/ +#ifdef CONFIG_UCSIMM + moveb #0x00, 0xfffffb0b /* Watchdog off */ + moveb #0x10, 0xfffff000 /* SCR */ + moveb #0x00, 0xfffff40b /* enable chip select */ + moveb #0x00, 0xfffff423 /* enable /DWE */ + moveb #0x08, 0xfffffd0d /* disable hardmap */ + moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ + movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ + movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ + movew #0x8f00, 0xfffffc00 /* DRAM configuration */ + movew #0x9667, 0xfffffc02 /* DRAM control */ + movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ + movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ + moveb #0x40, 0xfffff300 /* IVR */ + movel #0x007FFFFF, %d0 /* IMR */ + movel %d0, 0xfffff304 + moveb 0xfffff42b, %d0 + andb #0xe0, %d0 + moveb %d0, 0xfffff42b +#endif + +/***************************************************************************** + * Init LCD controller. + * (Assuming that LCD controller is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_INIT_LCD +#ifdef CONFIG_PILOT + moveb #0, 0xfffffA27 /* LCKCON */ + movel #_start, 0xfffffA00 /* LSSA */ + moveb #0xa, 0xfffffA05 /* LVPW */ + movew #0x9f, 0xFFFFFa08 /* LXMAX */ + movew #0x9f, 0xFFFFFa0a /* LYMAX */ + moveb #9, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x04, 0xFFFFFa20 /* LPICF */ + moveb #0x58, 0xfffffA27 /* LCKCON */ + moveb #0x85, 0xfffff429 /* PFDATA */ + moveb #0xd8, 0xfffffA27 /* LCKCON */ + moveb #0xc5, 0xfffff429 /* PFDATA */ + moveb #0xd5, 0xfffff429 /* PFDATA */ + movel #bootlogo_bits, 0xFFFFFA00 /* LSSA */ + moveb #10, 0xFFFFFA05 /* LVPW */ + movew #160, 0xFFFFFA08 /* LXMAX */ + movew #160, 0xFFFFFA0A /* LYMAX */ +#else /* CONFIG_PILOT */ + movel #bootlogo_bits, 0xfffffA00 /* LSSA */ + moveb #0x28, 0xfffffA05 /* LVPW */ + movew #0x280, 0xFFFFFa08 /* LXMAX */ + movew #0x1df, 0xFFFFFa0a /* LYMAX */ + moveb #0, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x08, 0xFFFFFa20 /* LPICF */ + moveb #0x01, 0xFFFFFA21 /* -ve pol */ + moveb #0x81, 0xfffffA27 /* LCKCON */ + movew #0xff00, 0xfffff412 /* LCD pins */ +#endif /* CONFIG_PILOT */ +#endif /* CONFIG_INIT_LCD */ + +/***************************************************************************** + * Kernel is running from FLASH/ROM (XIP) + * Copy init text & data to RAM + *****************************************************************************/ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #_sbss, %a2 +_copy_initmem: + movel %a0@+, %a1@+ + cmpal %a1, %a2 + bhi _copy_initmem +#endif /* CONFIG_ROMKERNEL */ + +/***************************************************************************** + * Setup basic memory information for kernel + *****************************************************************************/ + movel #CONFIG_VECTORBASE,_ramvec /* set vector base location */ + movel #CONFIG_RAMBASE,_rambase /* set the base of RAM */ + movel #RAMEND, _ramend /* set end ram addr */ + lea _ebss,%a1 + movel %a1,_ramstart + +/***************************************************************************** + * If the kernel is in RAM, move romfs to right above bss and + * adjust _ramstart to where romfs ends. + * + * (Do this only if CONFIG_MTD_UCLINUX is true) + *****************************************************************************/ + +#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \ + defined(CONFIG_MTD_UCLINUX) + lea _sbss, %a0 /* get start of bss */ + lea _ebss, %a1 /* set up destination */ + movel %a0, %a2 /* copy of bss start */ + + movel 8(%a0), %d0 /* get size of ROMFS */ + addql #8, %d0 /* allow for rounding */ + andl #0xfffffffc, %d0 /* whole words */ + + addl %d0, %a0 /* copy from end */ + addl %d0, %a1 /* copy from end */ + movel %a1, _ramstart /* set start of ram */ +_copy_romfs: + movel -(%a0), -(%a1) /* copy dword */ + cmpl %a0, %a2 /* check if at end */ + bne _copy_romfs +#endif /* CONFIG_ROMFS_FS && CONFIG_RAMKERNEL && CONFIG_MTD_UCLINUX */ + +/***************************************************************************** + * Clear bss region + *****************************************************************************/ + lea _sbss, %a0 /* get start of bss */ + lea _ebss, %a1 /* get end of bss */ +_clear_bss: + movel #0, (%a0)+ /* clear each word */ + cmpl %a0, %a1 /* check if at end */ + bne _clear_bss + +/***************************************************************************** + * Load the current task pointer and stack. + *****************************************************************************/ + lea init_thread_union,%a0 + lea THREAD_SIZE(%a0),%sp + jsr start_kernel /* start Linux kernel */ +_exit: + jmp _exit /* should never get here */ diff --git a/arch/m68k/platform/68328/ints.c b/arch/m68k/platform/68000/ints.c similarity index 98% rename from arch/m68k/platform/68328/ints.c rename to arch/m68k/platform/68000/ints.c index b3810fe..cda49b1 100644 --- a/arch/m68k/platform/68328/ints.c +++ b/arch/m68k/platform/68000/ints.c @@ -1,5 +1,5 @@ /* - * linux/arch/m68knommu/platform/68328/ints.c + * ints.c - Generic interrupt controller support * * 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 diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68000/m68328.c similarity index 97% rename from arch/m68k/platform/68328/config.c rename to arch/m68k/platform/68000/m68328.c index 8c20e89..a86eb66 100644 --- a/arch/m68k/platform/68328/config.c +++ b/arch/m68k/platform/68000/m68328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68328/config.c + * m68328.c - 68328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne diff --git a/arch/m68k/platform/68EZ328/config.c b/arch/m68k/platform/68000/m68EZ328.c similarity index 97% rename from arch/m68k/platform/68EZ328/config.c rename to arch/m68k/platform/68000/m68EZ328.c index 4f158d5..a6eb72d 100644 --- a/arch/m68k/platform/68EZ328/config.c +++ b/arch/m68k/platform/68000/m68EZ328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68EZ328/config.c + * m68EZ328.c - 68EZ328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne diff --git a/arch/m68k/platform/68VZ328/config.c b/arch/m68k/platform/68000/m68VZ328.c similarity index 98% rename from arch/m68k/platform/68VZ328/config.c rename to arch/m68k/platform/68000/m68VZ328.c index 2ed8dc3..eb6964f 100644 --- a/arch/m68k/platform/68VZ328/config.c +++ b/arch/m68k/platform/68000/m68VZ328.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68VZ328/config.c + * m68VZ328.c - 68VZ328 specific config * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne @@ -28,7 +28,7 @@ #include <asm/bootstd.h> #ifdef CONFIG_INIT_LCD -#include "bootlogo.h" +#include "bootlogo-vz.h" #endif /***************************************************************************/ diff --git a/arch/m68k/platform/68328/romvec.S b/arch/m68k/platform/68000/romvec.S similarity index 94% rename from arch/m68k/platform/68328/romvec.S rename to arch/m68k/platform/68000/romvec.S index 3108446..15c70cd 100644 --- a/arch/m68k/platform/68328/romvec.S +++ b/arch/m68k/platform/68000/romvec.S @@ -1,5 +1,5 @@ /* - * linux/arch/m68knommu/platform/68328/romvec.S + * romvec.S - Vector table for 68000 cpus * * 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 diff --git a/arch/m68k/platform/68328/timers.c b/arch/m68k/platform/68000/timers.c similarity index 98% rename from arch/m68k/platform/68328/timers.c rename to arch/m68k/platform/68000/timers.c index f4dc9b2..ec30acb 100644 --- a/arch/m68k/platform/68328/timers.c +++ b/arch/m68k/platform/68000/timers.c @@ -1,7 +1,7 @@ /***************************************************************************/ /* - * linux/arch/m68knommu/platform/68328/timers.c + * timers.c - Generic hardware timer support. * * Copyright (C) 1993 Hamish Macdonald * Copyright (C) 1999 D. Jeff Dionne diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile deleted file mode 100644 index ee61bf8..0000000 --- a/arch/m68k/platform/68328/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68328. -# - -model-y := ram -model-$(CONFIG_ROMKERNEL) := rom - -head-y = head-$(model-y).o -head-$(CONFIG_PILOT) = head-pilot.o -head-$(CONFIG_DRAGEN2) = head-de2.o - -obj-y += entry.o ints.o timers.o -obj-$(CONFIG_M68328) += config.o -obj-$(CONFIG_ROM) += romvec.o - -extra-y := head.o - -$(obj)/head.o: $(obj)/$(head-y) - ln -sf $(head-y) $(obj)/head.o - -clean-files := $(obj)/head.o $(head-y) diff --git a/arch/m68k/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S deleted file mode 100644 index 537d324..0000000 --- a/arch/m68k/platform/68328/head-de2.S +++ /dev/null @@ -1,128 +0,0 @@ - -#define MEM_END 0x00800000 /* Memory size 8Mb */ - -#undef CRT_DEBUG - -.macro PUTC CHAR -#ifdef CRT_DEBUG - moveq #\CHAR, %d7 - jsr putc -#endif -.endm - - .global _start - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - - .data - -/* - * Set up the usable of RAM stuff - */ -_rambase: - .long 0 -_ramvec: - .long 0 -_ramstart: - .long 0 -_ramend: - .long 0 - - .text - -_start: - -/* - * Setup initial stack - */ - /* disable all interrupts */ - movew #0x2700, %sr - movel #-1, 0xfffff304 - movel #MEM_END-4, %sp - - PUTC '\r' - PUTC '\n' - PUTC 'A' - PUTC 'B' - -/* - * Determine end of RAM - */ - - movel #MEM_END, %a0 - movel %a0, _ramend - - PUTC 'C' - -/* - * Move ROM filesystem above bss :-) - */ - - moveal #__bss_start, %a0 /* romfs at the start of bss */ - moveal #__bss_stop, %a1 /* Set up destination */ - movel %a0, %a2 /* Copy of bss start */ - - movel 8(%a0), %d1 /* Get size of ROMFS */ - addql #8, %d1 /* Allow for rounding */ - andl #0xfffffffc, %d1 /* Whole words */ - - addl %d1, %a0 /* Copy from end */ - addl %d1, %a1 /* Copy from end */ - movel %a1, _ramstart /* Set start of ram */ - -1: - movel -(%a0), %d0 /* Copy dword */ - movel %d0, -(%a1) - cmpl %a0, %a2 /* Check if at end */ - bne 1b - - PUTC 'D' - -/* - * Initialize BSS segment to 0 - */ - - lea __bss_start, %a0 - lea __bss_stop, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -2: cmpal %a0, %a1 - beq 1f - clrl (%a0)+ - bra 2b -1: - - PUTC 'E' - -/* - * Load the current task pointer and stack - */ - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - PUTC 'F' - PUTC '\r' - PUTC '\n' - -/* - * Go - */ - - jmp start_kernel - -/* - * Local functions - */ - -#ifdef CRT_DEBUG -putc: - moveb %d7, 0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts -#endif diff --git a/arch/m68k/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S deleted file mode 100644 index 45a9dad..0000000 --- a/arch/m68k/platform/68328/head-pilot.S +++ /dev/null @@ -1,207 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/head-pilot.S - * - A startup file for the MC68328 - * - * Copyright (C) 1998 D. Jeff Dionne <[email protected]>, - * Kenneth Albanowski <[email protected]>, - * The Silver Hammer Group, Ltd. - * - * (c) 1995, Dionne & Associates - * (c) 1995, DKG Display Tech. - */ - -#define ASSEMBLY - -#define IMMED # -#define DBG_PUTC(x) moveb IMMED x, 0xfffff907 - - -.global _stext -.global _start - -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend - -.global bootlogo_bits - -/*****************************************************************************/ - -.data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -.text - -_start: -_stext: - - -#ifdef CONFIG_M68328 - -#ifdef CONFIG_PILOT - .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */ - .byte 'b', 'o', 'o', 't' - .word 10000 - - nop -#endif - - moveq #0, %d0 - movew %d0, 0xfffff618 /* Watchdog off */ - movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ - - movew #0x0800, 0xfffff906 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - - movew #0x2410, 0xfffff200 /* PLLCR */ - movew #0x123, 0xfffff202 /* PLLFSR */ - -#ifdef CONFIG_PILOT - moveb #0, 0xfffffA27 /* LCKCON */ - movel #_start, 0xfffffA00 /* LSSA */ - moveb #0xa, 0xfffffA05 /* LVPW */ - movew #0x9f, 0xFFFFFa08 /* LXMAX */ - movew #0x9f, 0xFFFFFa0a /* LYMAX */ - moveb #9, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x04, 0xFFFFFa20 /* LPICF */ - moveb #0x58, 0xfffffA27 /* LCKCON */ - moveb #0x85, 0xfffff429 /* PFDATA */ - moveb #0xd8, 0xfffffA27 /* LCKCON */ - moveb #0xc5, 0xfffff429 /* PFDATA */ - moveb #0xd5, 0xfffff429 /* PFDATA */ - - moveal #0x00100000, %a3 - moveal #0x100ffc00, %a4 -#endif /* CONFIG_PILOT */ - -#endif /* CONFIG_M68328 */ - - movew #0x2700, %sr - lea %a4@(-4), %sp - - DBG_PUTC('\r') - DBG_PUTC('\n') - DBG_PUTC('A') - - moveq #0,%d0 - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 - - DBG_PUTC('B') - - /* Copy command line from beginning of RAM (+16) to end of bss */ - movel #CONFIG_VECTORBASE, %d7 - addl #16, %d7 - moveal %d7, %a0 - moveal #__bss_stop, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('C') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L2: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L2 - - /* Copy data+init segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #__init_end, %a2 - - DBG_PUTC('D') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -LD1: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi LD1 - - DBG_PUTC('E') - - moveal #__bss_start, %a0 - moveal #__bss_stop, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - - DBG_PUTC('F') - - /* Copy command line from end of bss to command line */ - moveal #__bss_stop, %a0 - moveal #command_line, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('G') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L3: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L3 - - movel #_sdata, %d0 - movel %d0, _rambase - movel #__bss_stop, %d0 - movel %d0, _ramstart - - movel %a4, %d0 - subl #4096, %d0 /* Reserve 4K of stack */ - moveq #79, %d7 - movel %d0, _ramend - - pea 0 - pea env - pea %sp@(4) - pea 0 - - DBG_PUTC('H') - -#ifdef CONFIG_PILOT - movel #bootlogo_bits, 0xFFFFFA00 - moveb #10, 0xFFFFFA05 - movew #160, 0xFFFFFA08 - movew #160, 0xFFFFFA0A -#endif /* CONFIG_PILOT */ - - DBG_PUTC('I') - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - DBG_PUTC('J') - DBG_PUTC('\r') - DBG_PUTC('\n') - - jsr start_kernel -_exit: - - jmp _exit - - - .data -env: - .long 0 diff --git a/arch/m68k/platform/68328/head-ram.S b/arch/m68k/platform/68328/head-ram.S deleted file mode 100644 index 5189ef9..0000000 --- a/arch/m68k/platform/68328/head-ram.S +++ /dev/null @@ -1,141 +0,0 @@ - - .global __main - .global __rom_start - - .global _rambase - .global _ramstart - - .global splash_bits - .global _start - .global _stext - .global _edata - -#define DEBUG -#define ROM_OFFSET 0x10C00000 -#define STACK_GAURD 0x10 - - .text - -_start: -_stext: - movew #0x2700, %sr /* Exceptions off! */ - -#if 0 - /* Init chip registers. uCsimm specific */ - moveb #0x00, 0xfffffb0b /* Watchdog off */ - moveb #0x10, 0xfffff000 /* SCR */ - - movew #0x2400, 0xfffff200 /* PLLCR */ - movew #0x0123, 0xfffff202 /* PLLFSR */ - - moveb #0x00, 0xfffff40b /* enable chip select */ - moveb #0x00, 0xfffff423 /* enable /DWE */ - moveb #0x08, 0xfffffd0d /* disable hardmap */ - moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ - - movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ - movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ - - movew #0x8f00, 0xfffffc00 /* DRAM configuration */ - movew #0x9667, 0xfffffc02 /* DRAM control */ - movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ - movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ - - moveb #0x40, 0xfffff300 /* IVR */ - movel #0x007FFFFF, %d0 /* IMR */ - movel %d0, 0xfffff304 - - moveb 0xfffff42b, %d0 - andb #0xe0, %d0 - moveb %d0, 0xfffff42b - - moveb #0x08, 0xfffff907 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - movew #0xe100, 0xfffff900 /* enable */ -#endif - - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp1 -#endif /* DEBUG */ - -#ifdef DEBUG - moveq #82, %d7 /* 'R' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp3: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp3 -#endif /* DEBUG */ - moveal #0x007ffff0, %ssp - moveal #__bss_start, %a0 - moveal #__bss_stop, %a1 - - /* Copy 0 to %a0 until %a0 >= %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - -#ifdef DEBUG - moveq #67, %d7 /* 'C' */ - jsr putc -#endif /* DEBUG */ - - pea 0 - pea env - pea %sp@(4) - pea 0 - -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - jsr putc -#endif /* DEBUG */ - -lp: - jsr start_kernel - jmp lp -_exit: - - jmp _exit - -__main: - /* nothing */ - rts - -#ifdef DEBUG -putc: - moveb %d7,0xfffff907 -pclp: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp - rts -#endif /* DEBUG */ - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -env: - .long 0 diff --git a/arch/m68k/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S deleted file mode 100644 index 3dff98b..0000000 --- a/arch/m68k/platform/68328/head-rom.S +++ /dev/null @@ -1,105 +0,0 @@ - - .global _start - .global _stext - - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - -#ifdef CONFIG_INIT_LCD - .global bootlogo_bits -#endif - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) - - .text -_start: -_stext: movew #0x2700,%sr -#ifdef CONFIG_INIT_LCD - movel #bootlogo_bits, 0xfffffA00 /* LSSA */ - moveb #0x28, 0xfffffA05 /* LVPW */ - movew #0x280, 0xFFFFFa08 /* LXMAX */ - movew #0x1df, 0xFFFFFa0a /* LYMAX */ - moveb #0, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x08, 0xFFFFFa20 /* LPICF */ - moveb #0x01, 0xFFFFFA21 /* -ve pol */ - moveb #0x81, 0xfffffA27 /* LCKCON */ - movew #0xff00, 0xfffff412 /* LCD pins */ -#endif - moveal #RAMEND-CONFIG_MEMORY_RESERVE*0x100000 - 0x10, %sp - movew #32767, %d0 /* PLL settle wait loop */ -1: subq #1, %d0 - bne 1b - - /* Copy data segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #_edata, %a2 - - /* Copy %a0 to %a1 until %a1 == %a2 */ -1: movel %a0@+, %a1@+ - cmpal %a1, %a2 - bhi 1b - - moveal #__bss_start, %a0 - moveal #__bss_stop, %a1 - /* Copy 0 to %a0 until %a0 == %a1 */ - -1: - clrl %a0@+ - cmpal %a0, %a1 - bhi 1b - - movel #_sdata, %d0 - movel %d0, _rambase - movel #__bss_stop, %d0 - movel %d0, _ramstart - movel #RAMEND-CONFIG_MEMORY_RESERVE*0x100000, %d0 - movel %d0, _ramend - movel #CONFIG_VECTORBASE, %d0 - movel %d0, _ramvec - -/* - * load the current task pointer and stack - */ - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - -1: jsr start_kernel - bra 1b -_exit: - - jmp _exit - - -putc: - moveb %d7,0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts - - .data -env: - .long 0 - .text - diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile deleted file mode 100644 index b44d799..0000000 --- a/arch/m68k/platform/68EZ328/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68EZ328. -# - -obj-y := config.o diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile deleted file mode 100644 index 8166741..0000000 --- a/arch/m68k/platform/68VZ328/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for arch/m68k/platform/68VZ328. -# - -obj-y := config.o -- 1.7.10.4