* [PATCH] Platform code merge for 68000 core cpus
@ 2012-10-23 18:38 Luis Alves
2012-10-23 21:51 ` Luis Alves
0 siblings, 1 reply; 8+ messages in thread
From: Luis Alves @ 2012-10-23 18:38 UTC (permalink / raw)
To: uclinux-dev, linux-m68k; +Cc: gerg, ljalvs
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 <ljalvs@gmail.com>
---
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 <ljalvs@gmail.com>
+# 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 <ljalvs@gmail.com>, Single head.S file for all
+ * 68000 core based CPU's. Based on the sources from:
+ * Coldfire by Greg Ungerer <gerg@snapgear.com>
+ * 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ * Kenneth Albanowski <kjahds@kjahds.com>,
+ * 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 <jeff@ryeham.ee.ryerson.ca>,
- * Kenneth Albanowski <kjahds@kjahds.com>,
- * 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
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Platform code merge for 68000 core cpus
2012-10-23 18:38 [PATCH] Platform code merge for 68000 core cpus Luis Alves
@ 2012-10-23 21:51 ` Luis Alves
0 siblings, 0 replies; 8+ messages in thread
From: Luis Alves @ 2012-10-23 21:51 UTC (permalink / raw)
To: uclinux-dev, linux-m68k; +Cc: gerg, ljalvs
Hi Greg,
Please ignore this patch also. I've detected some errors in the head.S
file (due to the linker script changes - _bss is now _bss_stop ).
I'll fix those and build a kernel to fully test these changes.
Sorry for the incovenience,
Luis
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Platform code merge for 68000 core cpus
2012-10-23 0:52 Luis Alves
2012-10-23 6:58 ` Greg Ungerer
@ 2012-10-25 18:40 ` Geert Uytterhoeven
1 sibling, 0 replies; 8+ messages in thread
From: Geert Uytterhoeven @ 2012-10-25 18:40 UTC (permalink / raw)
To: Luis Alves; +Cc: uclinux-dev, linux-m68k, gerg
On Tue, Oct 23, 2012 at 2:52 AM, Luis Alves <ljalvs@gmail.com> wrote:
> --- 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
This needs a "depends on !MMU".
Else allmodconfig will select it, causing -m68000 to be passed to the assembler,
which may break the build depending on your version of binutils, a.o.
arch/m68k/kernel/entry.S:186: Error: invalid instruction for this
architecture; needs 68020 or higher (68020 [68k, 68ec020], 68030
[68ec030], 68040 [68ec040], 68060 [68ec060]) -- statement `bfextu
%sp@(50){#0,#4},%d0' ignored
arch/m68k/kernel/entry.S:211: Error: invalid operand mode for this
architecture; needs 68020 or higher -- statement `jbsr
@(sys_call_table,%d0:l:4)@(0)' ignored
Cfr. http://kisskb.ellerman.id.au/kisskb/buildresult/7416877/
BTW, it didn't break the build on my ancient workhorse binutils, but that's no
guarantee it would boot...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Platform code merge for 68000 core cpus
2012-10-23 23:45 Luis Alves
@ 2012-10-24 6:03 ` Greg Ungerer
0 siblings, 0 replies; 8+ messages in thread
From: Greg Ungerer @ 2012-10-24 6:03 UTC (permalink / raw)
To: Luis Alves; +Cc: uclinux-dev, linux-m68k
Hi Luis,
On 24/10/12 09:45, Luis Alves wrote:
> I've fixed the previous issue.
>
> As a test I've built a kernel for the 68000 based on the git sources with this patch and everything went smooth. (Tested it in real hardware)
Thanks, this looks good, cleans up all those targets nicely.
Handy reduction in code size too. I have pushed this into the
for-next branch of the m68knommu git tree.
Regards
Greg
> Signed-off-by: Luis Alves <ljalvs@gmail.com>
> ---
> 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
>
--
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: gerg@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close FAX: +61 7 3217 5323
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH] Platform code merge for 68000 core cpus
@ 2012-10-23 23:45 Luis Alves
2012-10-24 6:03 ` Greg Ungerer
0 siblings, 1 reply; 8+ messages in thread
From: Luis Alves @ 2012-10-23 23:45 UTC (permalink / raw)
To: uclinux-dev, linux-m68k; +Cc: gerg, ljalvs
Hello again,
I've fixed the previous issue.
As a test I've built a kernel for the 68000 based on the git sources with this patch and everything went smooth. (Tested it in real hardware)
Regards,
Luis
Signed-off-by: Luis Alves <ljalvs@gmail.com>
---
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-$(CONFIG_COLDFIRE) += arch/m68k/platform/coldfire/
diff --git a/arch/m68k/platform/68000/Makefile b/arch/m68k/platform/68000/Makefile
new file mode 100644
index 0000000..1eab70c
--- /dev/null
+++ b/arch/m68k/platform/68000/Makefile
@@ -0,0 +1,18 @@
+##################################################
+#
+# Makefile for 68000 core based cpus
+#
+# 2012.10.21, Luis Alves <ljalvs@gmail.com>
+# Merged all 68000 based cpu's config
+# files into a single directory.
+#
+
+# 68328, 68EZ328, 68VZ328
+
+obj-y += entry.o ints.o timers.o
+obj-$(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..536ef96
--- /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 <ljalvs@gmail.com>, Single head.S file for all
+ * 68000 core based CPU's. Based on the sources from:
+ * Coldfire by Greg Ungerer <gerg@snapgear.com>
+ * 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ * Kenneth Albanowski <kjahds@kjahds.com>,
+ * 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 #__bss_start, %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 __bss_stop,%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 __bss_start, %a0 /* get start of bss */
+ lea __bss_stop, %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 __bss_start, %a0 /* get start of bss */
+ lea __bss_stop, %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 <jeff@ryeham.ee.ryerson.ca>,
- * Kenneth Albanowski <kjahds@kjahds.com>,
- * 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
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Platform code merge for 68000 core cpus
2012-10-23 6:58 ` Greg Ungerer
@ 2012-10-23 10:01 ` Luis Alves
0 siblings, 0 replies; 8+ messages in thread
From: Luis Alves @ 2012-10-23 10:01 UTC (permalink / raw)
To: Greg Ungerer; +Cc: linux-m68k, uclinux-dev
Hi Greg,
Thanks for the review!
I'll get those fixed later tonight and re-send the patch.
Regards,
Luis
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Platform code merge for 68000 core cpus
2012-10-23 0:52 Luis Alves
@ 2012-10-23 6:58 ` Greg Ungerer
2012-10-23 10:01 ` Luis Alves
2012-10-25 18:40 ` Geert Uytterhoeven
1 sibling, 1 reply; 8+ messages in thread
From: Greg Ungerer @ 2012-10-23 6:58 UTC (permalink / raw)
To: Luis Alves; +Cc: uclinux-dev, linux-m68k
Hi Luis,
On 23/10/12 10:52, Luis Alves wrote:
> Finnaly I've found some time to get back to the 68k.
>
> This patch merges all 68000 core cpus in one directory.
> Patch was generated using -B and -M and checked with
> scricts/checkpatch.pl
>
> It doesn't include the MC68000 code. I expect the next
> patch to include the 68k board definition and mc68000
> related code.
> Also I expect to merge all entry*.S into a single file.
This looks pretty good. I am happy with the way the common
68000 code all falls out. Nice.It sure is a big patch on its
own though.
Couple of minor things I single out below. And they are just
minor.
> Signed-off-by: Luis Alves <ljalvs@gmail.com>
> diff --git a/arch/m68k/platform/68000/Makefile b/arch/m68k/platform/68000/Makefile
> new file mode 100644
> index 0000000..e1777ee
> --- /dev/null
> +++ b/arch/m68k/platform/68000/Makefile
> @@ -0,0 +1,23 @@
> +##################################################
> +#
> +# Makefile for arch/m68k/platform/68000
> +#
> +# 2012.10.21, Luis Alves <ljalvs@gmail.com>
> +# Merged all 68000 based cpu's configuration
> +# files into a single directory.
> +#
> +
> +# 68328, 68EZ328, 68VZ328
> +
> +obj-y += entry.o ints.o timers.o
> +obj-$(CONFIG_M68328) += config.o
> +obj-$(CONFIG_M68EZ328) += config-ez.o
> +obj-$(CONFIG_M68VZ328) += config-vz.o
> +obj-$(CONFIG_ROM) += romvec.o
> +
> +model-y := ram
> +model-$(CONFIG_ROMKERNEL) := rom
Is this model-* still needed?
> diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68000/config.c
> similarity index 100%
> rename from arch/m68k/platform/68328/config.c
> rename to arch/m68k/platform/68000/config.c
> 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..6e0e2de
> --- /dev/null
> +++ b/arch/m68k/platform/68000/head.S
> @@ -0,0 +1,317 @@
> +/*
> + * linux/arch/m68k/platform/68000/head.S
Having the full path name here is mostly frowned upon these days.
It eventually goes stale, if/when files get moved.
> + *
> + * Common startup code for 68000 core based CPU's
> + *
> + * 2012.10.21, Luis Alves <ljalvs@gmail.com>, Single head.S file for all
> + * 68000 core based CPU's. Based on the sources from:
> + * Coldfire by Greg Ungerer <gerg@snapgear.com>
> + * 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
> + * Kenneth Albanowski <kjahds@kjahds.com>,
> + * 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
Inconsistent indenting?
> +#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
> +.global bootlogo_bits
> +#endif
> +
> +/* Defining DEBUG_HEAD_CODE, serial port in 68x328 is inited */
> +#undef DEBUG_HEAD_CODE
> +//#define DEBUG_HEAD_CODE
No use of '//' for comments please :-)
> +.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 (jump 10 bytes ahead) */
> + .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 */
> +
> +
> +
> +
Probably a bit too much white space used in a number of places in
this file :-)
> +/*****************************************************************************
> + *
> + * If running kernel from ROM/FLASH 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.
> + *
> + * NOTE: 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 */
Inconsistent spacing used on args throughout this file. I know some
of this came strait from the older files. But lets use this chance
to at least make it consistent now.
> +#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_EBSS is true)
> + *
> + *****************************************************************************/
> +
> +#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \
> + defined(CONFIG_MTD_UCLINUX_EBSS)
There is no CONFIG_MTD_UCLINUX_EBSS in mainline kernels. Just use
CONFIG_MTD_UCLINUX.
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: gerg@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close FAX: +61 7 3217 5323
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH] Platform code merge for 68000 core cpus
@ 2012-10-23 0:52 Luis Alves
2012-10-23 6:58 ` Greg Ungerer
2012-10-25 18:40 ` Geert Uytterhoeven
0 siblings, 2 replies; 8+ messages in thread
From: Luis Alves @ 2012-10-23 0:52 UTC (permalink / raw)
To: uclinux-dev, linux-m68k; +Cc: gerg, ljalvs
Hi all,
Finnaly I've found some time to get back to the 68k.
This patch merges all 68000 core cpus in one directory.
Patch was generated using -B and -M and checked with
scricts/checkpatch.pl
It doesn't include the MC68000 code. I expect the next
patch to include the 68k board definition and mc68000
related code.
Also I expect to merge all entry*.S into a single file.
Regards,
Luis
Signed-off-by: Luis Alves <ljalvs@gmail.com>
---
arch/m68k/Kconfig.cpu | 2 +-
arch/m68k/Makefile | 6 +-
arch/m68k/platform/68000/Makefile | 23 ++
.../{68VZ328/bootlogo.h => 68000/bootlogo-vz.h} | 0
arch/m68k/platform/{68328 => 68000}/bootlogo.h | 0
.../{68EZ328/config.c => 68000/config-ez.c} | 0
.../{68VZ328/config.c => 68000/config-vz.c} | 2 +-
arch/m68k/platform/{68328 => 68000}/config.c | 0
arch/m68k/platform/{68328 => 68000}/entry.S | 0
arch/m68k/platform/68000/head.S | 318 ++++++++++++++++++++
arch/m68k/platform/{68328 => 68000}/ints.c | 0
arch/m68k/platform/{68328 => 68000}/romvec.S | 0
arch/m68k/platform/{68328 => 68000}/timers.c | 0
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, 345 insertions(+), 618 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/{68EZ328/config.c => 68000/config-ez.c} (100%)
rename arch/m68k/platform/{68VZ328/config.c => 68000/config-vz.c} (99%)
rename arch/m68k/platform/{68328 => 68000}/config.c (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 (100%)
rename arch/m68k/platform/{68328 => 68000}/romvec.S (100%)
rename arch/m68k/platform/{68328 => 68000}/timers.c (100%)
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..e1777ee
--- /dev/null
+++ b/arch/m68k/platform/68000/Makefile
@@ -0,0 +1,23 @@
+##################################################
+#
+# Makefile for arch/m68k/platform/68000
+#
+# 2012.10.21, Luis Alves <ljalvs@gmail.com>
+# Merged all 68000 based cpu's configuration
+# files into a single directory.
+#
+
+# 68328, 68EZ328, 68VZ328
+
+obj-y += entry.o ints.o timers.o
+obj-$(CONFIG_M68328) += config.o
+obj-$(CONFIG_M68EZ328) += config-ez.o
+obj-$(CONFIG_M68VZ328) += config-vz.o
+obj-$(CONFIG_ROM) += romvec.o
+
+model-y := ram
+model-$(CONFIG_ROMKERNEL) := rom
+
+extra-y := head.o
+
+clean-files := $(obj)/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/68EZ328/config.c b/arch/m68k/platform/68000/config-ez.c
similarity index 100%
rename from arch/m68k/platform/68EZ328/config.c
rename to arch/m68k/platform/68000/config-ez.c
diff --git a/arch/m68k/platform/68VZ328/config.c b/arch/m68k/platform/68000/config-vz.c
similarity index 99%
rename from arch/m68k/platform/68VZ328/config.c
rename to arch/m68k/platform/68000/config-vz.c
index 2ed8dc3..810bc36 100644
--- a/arch/m68k/platform/68VZ328/config.c
+++ b/arch/m68k/platform/68000/config-vz.c
@@ -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/config.c b/arch/m68k/platform/68000/config.c
similarity index 100%
rename from arch/m68k/platform/68328/config.c
rename to arch/m68k/platform/68000/config.c
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..6e0e2de
--- /dev/null
+++ b/arch/m68k/platform/68000/head.S
@@ -0,0 +1,317 @@
+/*
+ * linux/arch/m68k/platform/68000/head.S
+ *
+ * Common startup code for 68000 core based CPU's
+ *
+ * 2012.10.21, Luis Alves <ljalvs@gmail.com>, Single head.S file for all
+ * 68000 core based CPU's. Based on the sources from:
+ * Coldfire by Greg Ungerer <gerg@snapgear.com>
+ * 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ * Kenneth Albanowski <kjahds@kjahds.com>,
+ * 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 */
+#undef DEBUG_HEAD_CODE
+//#define 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 (jump 10 bytes ahead) */
+ .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/FLASH 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.
+ *
+ * NOTE: 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_EBSS is true)
+ *
+ *****************************************************************************/
+
+#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \
+ defined(CONFIG_MTD_UCLINUX_EBSS)
+ 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 */
+
+
+
+/*****************************************************************************
+ *
+ * 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 100%
rename from arch/m68k/platform/68328/ints.c
rename to arch/m68k/platform/68000/ints.c
diff --git a/arch/m68k/platform/68328/romvec.S b/arch/m68k/platform/68000/romvec.S
similarity index 100%
rename from arch/m68k/platform/68328/romvec.S
rename to arch/m68k/platform/68000/romvec.S
diff --git a/arch/m68k/platform/68328/timers.c b/arch/m68k/platform/68000/timers.c
similarity index 100%
rename from arch/m68k/platform/68328/timers.c
rename to arch/m68k/platform/68000/timers.c
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 <jeff@ryeham.ee.ryerson.ca>,
- * Kenneth Albanowski <kjahds@kjahds.com>,
- * 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
^ permalink raw reply related [flat|nested] 8+ messages in thread
end of thread, other threads:[~2012-10-25 18:40 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-23 18:38 [PATCH] Platform code merge for 68000 core cpus Luis Alves
2012-10-23 21:51 ` Luis Alves
-- strict thread matches above, loose matches on Subject: below --
2012-10-23 23:45 Luis Alves
2012-10-24 6:03 ` Greg Ungerer
2012-10-23 0:52 Luis Alves
2012-10-23 6:58 ` Greg Ungerer
2012-10-23 10:01 ` Luis Alves
2012-10-25 18:40 ` Geert Uytterhoeven
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