diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/Makefile.in | 6 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/README | 38 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/console/console.c | 19 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/include/bsp.h | 19 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/include/sio.h | 62 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/start/start360.s | 20 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/start360/start360.s | 20 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in | 5 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/alloc360.c | 96 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/init68360.c | 168 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/linkcmds | 56 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp | 146 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom | 63 | ||||
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/wrapup/Makefile.in | 9 |
14 files changed, 635 insertions, 92 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/Makefile.in b/c/src/lib/libbsp/m68k/gen68360/Makefile.in index 9581a49c3b..02c21db8d8 100644 --- a/c/src/lib/libbsp/m68k/gen68360/Makefile.in +++ b/c/src/lib/libbsp/m68k/gen68360/Makefile.in @@ -12,8 +12,12 @@ include $(PROJECT_ROOT)/make/directory.cfg SRCS=README +# We only build the ka9q device driver if HAS_KA9Q was defined +LIBKA9Q_yes_V = network +LIBKA9Q = $(LIBKA9Q_$(HAS_KA9Q)_V) + all: $(SRCS) # wrapup is the one that actually builds and installs the library # from the individual .rel files built in other directories -SUB_DIRS=include start360 startup clock console timer wrapup +SUB_DIRS=include start360 startup clock console timer $(LIBKA9Q) wrapup diff --git a/c/src/lib/libbsp/m68k/gen68360/README b/c/src/lib/libbsp/m68k/gen68360/README index cbbc295fab..131a85651f 100644 --- a/c/src/lib/libbsp/m68k/gen68360/README +++ b/c/src/lib/libbsp/m68k/gen68360/README @@ -3,7 +3,7 @@ # # -# This package requires a version of GCC that has been modified +# This package works best with a version of GCC that has been modified # to support the `-mcpu32' argument. I have submitted the required # changes to the GCC maintainers. # @@ -19,8 +19,37 @@ # eric@skatter.usask.ca # +# +# This board support package works with several different versions of +# MC68360 systems. The choice of hardware is made at the final link-edit +# phase by setting the Makefile LDFLAGS definition appropriately. +# +# Decisions to be made a link-edit time include: +# - The version of hardware on which the application is to run. +# This is selected by defining the MC68360HardwareType variable. +# Supported values are: +# MC68360HardwareTypeMotorolaGeneric (default) +# MC68360HardwareTypeAtlasHSB +# To select the Atlas Computer Equipment HSB, +# --defsym MC68360HardwareType=MC68360HardwareTypeAtlasHSB +# +# - The amount of dynamic RAM in the system. This value applies +# only to hardware versions which support different sizes of RAM. +# The default value is 4 Mbytes. To specify 16 Mbytes of memory, +# --defsym RamSize=0x1000000 +# +# - The size of the memory allocator heap. The default value is +# 64 kbytes. If the KA9Q network package is used the heap +# should be at least 256 kbytes. If your network is large, or +# busy, the heap should be even larger. +# To choose a heap size of 256 kbytes, +# --defsym HeapSize=0x40000 +# + BSP NAME: gen68360 -BOARD: home-built +BOARD: Generic 68360 as described in Motorola MC68360 User's Manual +BOARD: Atlas Computer Equipment Inc. High Speed Bridge (HSB) +BOARD: Atlas Computer Equipment Inc. Advanced Communication Engine (ACE) BUS: none CPU FAMILY: Motorola CPU32+ COPROCESSORS: none @@ -63,7 +92,7 @@ Board description clock rate: 25 MHz bus width: 8-bit PROM, 32-bit DRAM ROM: To 1 MByte, 180 nsec (3 wait states), chip select 0 -RAM: 4 MByte DRAM SIMM, 60 nsec (0 wait states), parity +RAM: 1 to 64 MByte DRAM SIMM, 60 nsec (0 wait states), parity or nonparity Host System ----------- @@ -252,13 +281,14 @@ Porting ------- This board support package is written for a 68360 system similar to that described in chapter 9 of the Motorola MC68360 Quad Integrated Communication -Processor Users' Manual. The salient details of this hardware are: +Processor Users' Manual. The salient features of this hardware are: 25 MHz external clock DRAM address multiplexing provided by 68360 8-bit 180nsec PROM to CS0* 4 MBytes of 60 nsec parity DRAM (1Mx36) to RAS1*/CAS1* Console serial port on SMC1 + Ethernet interface on SCC1 The board support package has been tested with a home-built board and with an ACE360A board produced by: diff --git a/c/src/lib/libbsp/m68k/gen68360/console/console.c b/c/src/lib/libbsp/m68k/gen68360/console/console.c index bc451e2609..c840d78fd9 100644 --- a/c/src/lib/libbsp/m68k/gen68360/console/console.c +++ b/c/src/lib/libbsp/m68k/gen68360/console/console.c @@ -42,17 +42,10 @@ */ /* - * Place buffer descriptors at end of User Data/BD space in dual-port RAM - */ -#define consoleRxBd ((volatile m360BufferDescriptor_t *)((char *)m360.dpram1 + \ - (sizeof(m360.dpram2) - 2*sizeof(m360BufferDescriptor_t)))) -#define consoleTxBd ((volatile m360BufferDescriptor_t *)((char *)m360.dpram1 + \ - (sizeof(m360.dpram2) - sizeof(m360BufferDescriptor_t)))) - -/* * I/O buffers can be in ordindary RAM */ static volatile char rxBuf, txBuf; +static volatile m360BufferDescriptor_t *consoleRxBd, *consoleTxBd; rtems_device_driver console_initialize( rtems_device_major_number major, @@ -63,6 +56,12 @@ rtems_device_driver console_initialize( rtems_status_code status; /* + * Allocate buffer descriptors + */ + consoleRxBd = M360AllocateBufferDescriptors (1); + consoleTxBd = M360AllocateBufferDescriptors (1); + + /* * Configure port B pins to enable SMTXD1 and SMRXD1 pins */ m360.pbpar |= 0xC0; @@ -121,9 +120,7 @@ rtems_device_driver console_initialize( /* * Send "Init parameters" command */ - m360.cr = M360_CR_OP_INIT_RX_TX | M360_CR_CHAN_SMC1 | M360_CR_FLG; - while (m360.cr & M360_CR_FLG) - continue; + M360ExecuteRISC (M360_CR_OP_INIT_RX_TX | M360_CR_CHAN_SMC1); /* * Enable receiver and transmitter diff --git a/c/src/lib/libbsp/m68k/gen68360/include/bsp.h b/c/src/lib/libbsp/m68k/gen68360/include/bsp.h index 508501e6e8..209c71aebe 100644 --- a/c/src/lib/libbsp/m68k/gen68360/include/bsp.h +++ b/c/src/lib/libbsp/m68k/gen68360/include/bsp.h @@ -119,6 +119,8 @@ extern m68k_isr_entry M68Kvec[]; /* vector table address */ void bsp_cleanup( void ); void M360ExecuteRISC( rtems_unsigned16 command ); +void *M360AllocateBufferDescriptors( int count ); +void *M360AllocateRiscTimers( int count ); m68k_isr_entry set_vector( rtems_isr_entry handler, @@ -126,6 +128,23 @@ m68k_isr_entry set_vector( int type ); +/* + * Values assigned by link editor + */ +extern void *_RomBase, *_RamBase, *_RamSize; +extern void *_MC68360HardwareType; +extern void *_MC68360HardwareTypeMotorolaGeneric; +extern void *_MC68360HardwareTypeAtlasHSB; + +/* + * Definitions for Atlas Computer Equipment Inc. High Speed Bridge (HSB) + */ +#define ATLASHSB_ESR 0x20010000L +#define ATLASHSB_USICR 0x20010001L +#define ATLASHSB_DSRR 0x20010002L +#define ATLASHSB_LED4 0x20010004L +#define ATLASHSB_ROM_U6 0xFF080000L /* U6 flash ROM socket */ + #ifdef __cplusplus } #endif diff --git a/c/src/lib/libbsp/m68k/gen68360/include/sio.h b/c/src/lib/libbsp/m68k/gen68360/include/sio.h new file mode 100644 index 0000000000..a93544c312 --- /dev/null +++ b/c/src/lib/libbsp/m68k/gen68360/include/sio.h @@ -0,0 +1,62 @@ +/* sio.h + * + * sio device driver for UART SCC and SMC + * + * COPYRIGHT (c) 1997 Pacific Computing + * + * $Id$ + */ + +#ifndef _SIO_DRIVER_h +#define _SIO_DRIVER_h + +#ifdef __cplusplus +extern "C" { +#endif + +#define SIO_DRIVER_TABLE_ENTRY \ + { sio_initialize, sio_open, sio_close, \ + sio_read, sio_write, sio_control } + +rtems_device_driver sio_initialize( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +rtems_device_driver sio_open( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +rtems_device_driver sio_close( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +rtems_device_driver sio_read( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +rtems_device_driver sio_write( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +rtems_device_driver sio_control( + rtems_device_major_number, + rtems_device_minor_number, + void * +); + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ diff --git a/c/src/lib/libbsp/m68k/gen68360/start/start360.s b/c/src/lib/libbsp/m68k/gen68360/start/start360.s index 89ab98a806..77c4ff3115 100644 --- a/c/src/lib/libbsp/m68k/gen68360/start/start360.s +++ b/c/src/lib/libbsp/m68k/gen68360/start/start360.s @@ -56,7 +56,7 @@ Entry: .long uhoh | 21: .long uhoh | 22: .long uhoh | 23: - .long uhoh | 24: Spurious interrupt + .long spurious_interrupt | 24: Spurious interrupt .long uhoh | 25: Level 1 interrupt autovector .long uhoh | 26: Level 2 interrupt autovector .long uhoh | 27: Level 3 interrupt autovector @@ -298,6 +298,13 @@ uhoh: nop | Leave spot for breakpoint bra.s uhoh | Stuck forever /* + * Log, but otherwise ignore, spurious interrupts + */ +spurious_interrupt: + addql #1,SYM(_M68kSpuriousInterruptCount) + rte + +/* * Place the low-order 3 octets of the board's ethernet address at * a `well-known' fixed location relative to the beginning of ROM. */ @@ -307,7 +314,7 @@ uhoh: nop | Leave spot for breakpoint /* * Initial PC */ - .global start + .global start start: /* * Step 2: Stay in Supervisor Mode @@ -386,6 +393,8 @@ ZEROLOOPTEST: | Should this just force a reset? mainDone: nop | Leave spot for breakpoint + movew #1,a7 | Force a double bus error + movel d0,a7@- | This should cause a RESET stop #0x2700 | Stop with interrupts disabled bra.s mainDone | Stuck forever @@ -398,9 +407,14 @@ SYM (_StackSize): .long StackSize END_CODE -BEGIN_BSS +BEGIN_DATA_DCL .align 2 PUBLIC (environ) SYM (environ): .long 0 + PUBLIC (_M68kSpuriousInterruptCount) +SYM (_M68kSpuriousInterruptCount): + .long 0 +END_DATA_DCL + END diff --git a/c/src/lib/libbsp/m68k/gen68360/start360/start360.s b/c/src/lib/libbsp/m68k/gen68360/start360/start360.s index 89ab98a806..77c4ff3115 100644 --- a/c/src/lib/libbsp/m68k/gen68360/start360/start360.s +++ b/c/src/lib/libbsp/m68k/gen68360/start360/start360.s @@ -56,7 +56,7 @@ Entry: .long uhoh | 21: .long uhoh | 22: .long uhoh | 23: - .long uhoh | 24: Spurious interrupt + .long spurious_interrupt | 24: Spurious interrupt .long uhoh | 25: Level 1 interrupt autovector .long uhoh | 26: Level 2 interrupt autovector .long uhoh | 27: Level 3 interrupt autovector @@ -298,6 +298,13 @@ uhoh: nop | Leave spot for breakpoint bra.s uhoh | Stuck forever /* + * Log, but otherwise ignore, spurious interrupts + */ +spurious_interrupt: + addql #1,SYM(_M68kSpuriousInterruptCount) + rte + +/* * Place the low-order 3 octets of the board's ethernet address at * a `well-known' fixed location relative to the beginning of ROM. */ @@ -307,7 +314,7 @@ uhoh: nop | Leave spot for breakpoint /* * Initial PC */ - .global start + .global start start: /* * Step 2: Stay in Supervisor Mode @@ -386,6 +393,8 @@ ZEROLOOPTEST: | Should this just force a reset? mainDone: nop | Leave spot for breakpoint + movew #1,a7 | Force a double bus error + movel d0,a7@- | This should cause a RESET stop #0x2700 | Stop with interrupts disabled bra.s mainDone | Stuck forever @@ -398,9 +407,14 @@ SYM (_StackSize): .long StackSize END_CODE -BEGIN_BSS +BEGIN_DATA_DCL .align 2 PUBLIC (environ) SYM (environ): .long 0 + PUBLIC (_M68kSpuriousInterruptCount) +SYM (_M68kSpuriousInterruptCount): + .long 0 +END_DATA_DCL + END diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in b/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in index a26be2b371..aa3058786c 100644 --- a/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in +++ b/c/src/lib/libbsp/m68k/gen68360/startup/Makefile.in @@ -10,13 +10,14 @@ VPATH=@srcdir@ PGM=${ARCH}/startup.rel # C source names, if any, go here -- minus the .c -C_PIECES=bspstart bspclean init68360 sbrk setvec +C_PIECES=alloc360 bspstart bspclean init68360 sbrk setvec C_FILES=$(C_PIECES:%=%.c) C_O_FILES=$(C_PIECES:%=${ARCH}/%.o) H_FILES= -SRCS=$(srcdir)/linkcmds $(srcdir)/linkcmds.prom $(C_FILES) $(H_FILES) +SRCS=$(srcdir)/linkcmds $(srcdir)/linkcmds.prom $(srcdir)/linkcmds.bootp \ + $(C_FILES) $(H_FILES) OBJS=$(C_O_FILES) $(CC_O_FILES) include $(RTEMS_CUSTOM) diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/alloc360.c b/c/src/lib/libbsp/m68k/gen68360/startup/alloc360.c new file mode 100644 index 0000000000..99bfb3352e --- /dev/null +++ b/c/src/lib/libbsp/m68k/gen68360/startup/alloc360.c @@ -0,0 +1,96 @@ +/* + * MC68360 buffer descriptor allocation routines + * + * W. Eric Norum + * Saskatchewan Accelerator Laboratory + * University of Saskatchewan + * Saskatoon, Saskatchewan, CANADA + * eric@skatter.usask.ca + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <m68360.h> +#include <rtems/error.h> + +/* + * Allocation order: + * - Dual-Port RAM section 1 + * - Dual-Port RAM section 3 + * - Dual-Port RAM section 0 + * - Dual-Port RAM section 2 + */ +static struct { + char *base; + unsigned int size; + unsigned int used; +} bdregions[] = { + { (char *)&m360.dpram1[0], sizeof m360.dpram1, 0 }, + { (char *)&m360.dpram3[0], sizeof m360.dpram3, 0 }, + { (char *)&m360.dpram0[0], sizeof m360.dpram0, 0 }, + { (char *)&m360.dpram2[0], sizeof m360.dpram2, 0 }, +}; + +/* + * Send a command to the CPM RISC processer + */ +void * +M360AllocateBufferDescriptors (int count) +{ + unsigned int i; + ISR_Level level; + void *bdp = NULL; + unsigned int want = count * sizeof(m360BufferDescriptor_t); + + /* + * Running with interrupts disabled is usually considered bad + * form, but this routine is probably being run as part of an + * initialization sequence so the effect shouldn't be too severe. + */ + _ISR_Disable (level); + for (i = 0 ; i < sizeof(bdregions) / sizeof(bdregions[0]) ; i++) { + /* + * Verify that the region exists. + * This test is necessary since some chips have + * less dual-port RAM. + */ + if (bdregions[i].used == 0) { + volatile unsigned char *cp = bdregions[i].base; + *cp = 0xAA; + if (*cp != 0xAA) { + bdregions[i].used = bdregions[i].size; + continue; + } + *cp = 0x55; + if (*cp != 0x55) { + bdregions[i].used = bdregions[i].size; + continue; + } + *cp = 0x0; + } + if (bdregions[i].size - bdregions[i].used >= want) { + bdp = bdregions[i].base + bdregions[i].used; + bdregions[i].used += want; + break; + } + } + _ISR_Enable (level); + if (bdp == NULL) + rtems_panic ("Can't allocate %d buffer descriptor(s).\n", count); + return bdp; +} + +void * +M360AllocateRiscTimers (int count) +{ + /* + * Convert the count to the number of buffer descriptors + * of equal or larger size. This ensures that all buffer + * descriptors are allocated with appropriate alignment. + */ + return M360AllocateBufferDescriptors (((count * 4) + + sizeof(m360BufferDescriptor_t) - 1) / + sizeof(m360BufferDescriptor_t)); +} diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c b/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c index 2c22b931bd..5326cc0307 100644 --- a/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c +++ b/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c @@ -36,7 +36,7 @@ void M360ExecuteRISC(rtems_unsigned16 command) void _Init68360 (void) { int i; - extern void *_RomBase, *_RamBase; + unsigned long l; m68k_isr_entry *vbr; extern void _CopyDataClearBSSAndStart (void); @@ -58,20 +58,20 @@ void _Init68360 (void) * Change if you're not using an external 25 MHz oscillator. */ m360.clkocr = 0x8F; /* No more writes, no clock outputs */ - m360.pllcr = 0xD000; /* PLL, no writes, no prescale, */ - /* no LPSTOP slowdown, PLL X1 */ + m360.pllcr = 0xD000; /* PLL, no writes, no prescale, + no LPSTOP slowdown, PLL X1 */ m360.cdvcr = 0x8000; /* No more writes, no clock division */ /* * Step 8: Initialize system protection * Disable watchdog FIXME: Should use watchdog!!!! * Watchdog causes system reset - * Fastest watchdog timeout + * Slowest watchdog timeout * Enable double bus fault monitor * Enable bus monitor external * 128 clocks for external timeout */ - m360.sypcr = 0x4F; + m360.sypcr = 0x7F; /* * Step 9: Clear parameter RAM and reset communication processor module @@ -89,60 +89,139 @@ void _Init68360 (void) * SINTOUT not used (CPU32+ mode) * CF1MODE=00 (CONFIG1 input) * RAS1* double drive - * A31-A28 + * WE0* - WE3* * OE* output - * CAS2* / CAS3* - * CAS0* / CAS1* + * CAS2* - CAS3* + * CAS0* - CAS1* * CS7* * AVEC* * HARDWARE: * Change if you are using a different memory configuration * (static RAM, external address multiplexing, etc). */ - m360.pepar = 0x0100; + m360.pepar = 0x0180; /* * Step 11: Remap Chip Select 0 (CS0*), set up GMR - * 1024 addresses per DRAM page (1M DRAM chips) - * 60 nsec DRAM - * 180 nsec ROM (3 wait states) - * HARDWARE: - * Change if you are using a different memory configuration */ - m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN | M360_GMR_RCYC(0) | - M360_GMR_PGS(3) | M360_GMR_DPS_32BIT | M360_GMR_NCS | - M360_GMR_GAMX; - m360.memc[0].br = (unsigned long)&_RomBase | M360_MEMC_BR_WP | - M360_MEMC_BR_V; - m360.memc[0].or = M360_MEMC_OR_WAITS(3) | M360_MEMC_OR_512KB | + if (&_MC68360HardwareType == &_MC68360HardwareTypeAtlasHSB) { + m360.gmr = M360_GMR_RCNT(12) | M360_GMR_RFEN | + M360_GMR_RCYC(0) | M360_GMR_PGS(1) | + M360_GMR_DPS_32BIT | M360_GMR_DWQ | + M360_GMR_GAMX; + m360.memc[0].br = (unsigned long)&_RomBase | M360_MEMC_BR_WP | + M360_MEMC_BR_V; + m360.memc[0].or = M360_MEMC_OR_WAITS(3) | M360_MEMC_OR_1MB | + M360_MEMC_OR_8BIT; + } + else { + /* + * 1024/2048/4096 addresses per DRAM page (1M/4M/16M DRAM chips) + * 60 nsec DRAM + * 180 nsec ROM (3 wait states) + */ + switch ((unsigned long)&_RamSize) { + default: + case 4*1024*1024: + m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN | + M360_GMR_RCYC(0) | M360_GMR_PGS(3) | + M360_GMR_DPS_32BIT | M360_GMR_NCS | + M360_GMR_GAMX; + break; + + case 16*1024*1024: + m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN | + M360_GMR_RCYC(0) | M360_GMR_PGS(5) | + M360_GMR_DPS_32BIT | M360_GMR_NCS | + M360_GMR_GAMX; + break; + + case 64*1024*1024: + m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN | + M360_GMR_RCYC(0) | M360_GMR_PGS(7) | + M360_GMR_DPS_32BIT | M360_GMR_NCS | + M360_GMR_GAMX; + break; + } + m360.memc[0].br = (unsigned long)&_RomBase | M360_MEMC_BR_WP | + M360_MEMC_BR_V; + m360.memc[0].or = M360_MEMC_OR_WAITS(3) | M360_MEMC_OR_1MB | M360_MEMC_OR_8BIT; + } /* * Step 12: Initialize the system RAM - * Set up option/base registers - * 4 MB DRAM - * 60 nsec DRAM - * Wait for chips to power up - * Perform 8 read cycles - * Set all parity bits to correct state - * Enable parity checking - * HARDWARE: - * Change if you are using a different memory configuration */ - m360.memc[1].or = M360_MEMC_OR_TCYC(0) | M360_MEMC_OR_4MB | - M360_MEMC_OR_DRAM; - m360.memc[1].br = (unsigned long)&_RamBase | M360_MEMC_BR_V; - for (i = 0; i < 50000; i++) - continue; - for (i = 0; i < 8; ++i) - *((volatile unsigned long *)(unsigned long)&_RamBase); - for (i = 0 ; i < 4*1024*1024 ; i += sizeof (unsigned long)) { - volatile unsigned long *lp; - lp = (unsigned long *)((unsigned char *)&_RamBase + i); - *lp = *lp; - } - m360.memc[1].br = (unsigned long)&_RamBase | M360_MEMC_BR_PAREN | + if (&_MC68360HardwareType == &_MC68360HardwareTypeAtlasHSB) { + /* first bank 1MByte DRAM */ + m360.memc[1].or = M360_MEMC_OR_TCYC(2) | M360_MEMC_OR_1MB | + M360_MEMC_OR_PGME | M360_MEMC_OR_DRAM; + m360.memc[1].br = (unsigned long)&_RamBase | M360_MEMC_BR_V; + + /* second bank 1MByte DRAM */ + m360.memc[2].or = M360_MEMC_OR_TCYC(2) | M360_MEMC_OR_1MB | + M360_MEMC_OR_PGME | M360_MEMC_OR_DRAM; + m360.memc[2].br = ((unsigned long)&_RamBase + 0x100000) | + M360_MEMC_BR_V; + + /* flash rom socket U6 on CS5 */ + m360.memc[5].br = (unsigned long)ATLASHSB_ROM_U6 | M360_MEMC_BR_WP | M360_MEMC_BR_V; + m360.memc[5].or = M360_MEMC_OR_WAITS(2) | M360_MEMC_OR_512KB | + M360_MEMC_OR_8BIT; + + /* CSRs on CS7 */ + m360.memc[7].or = M360_MEMC_OR_TCYC(4) | M360_MEMC_OR_64KB | + M360_MEMC_OR_8BIT; + m360.memc[7].br = ATLASHSB_ESR | 0x01; + for (i = 0; i < 50000; i++) + continue; + for (i = 0; i < 8; ++i) + *((volatile unsigned long *)(unsigned long)&_RamBase); + } + else { + /* + * Set up option/base registers + * 4M/16M/64M DRAM + * 60 nsec DRAM + * Wait for chips to power up + * Perform 8 read cycles + * Set all parity bits to correct state + * Enable parity checking + */ + switch ((unsigned long)&_RamSize) { + default: + case 4*1024*1024: + m360.memc[1].or = M360_MEMC_OR_TCYC(0) | + M360_MEMC_OR_4MB | + M360_MEMC_OR_DRAM; + break; + + case 16*1024*1024: + m360.memc[1].or = M360_MEMC_OR_TCYC(0) | + M360_MEMC_OR_16MB | + M360_MEMC_OR_DRAM; + break; + + case 64*1024*1024: + m360.memc[1].or = M360_MEMC_OR_TCYC(0) | + M360_MEMC_OR_64MB | + M360_MEMC_OR_DRAM; + break; + } + m360.memc[1].br = (unsigned long)&_RamBase | M360_MEMC_BR_V; + for (i = 0; i < 50000; i++) + continue; + for (i = 0; i < 8; ++i) + *((volatile unsigned long *)(unsigned long)&_RamBase); + for (l = 0 ; l < (unsigned long)&_RamSize ; l += sizeof (unsigned long)) { + volatile unsigned long *lp; + lp = (unsigned long *)((unsigned char *)&_RamBase + i); + *lp = *lp; + } + m360.memc[1].br = (unsigned long)&_RamBase | + M360_MEMC_BR_PAREN | M360_MEMC_BR_V; + } /* * Step 13: Copy the exception vector table to system RAM @@ -155,6 +234,7 @@ void _Init68360 (void) /* * Step 14: More system initialization * SDCR (Serial DMA configuration register) + * Disable SDMA during FREEZE * Give SDMA priority over all interrupt handlers * Set DMA arbiration level to 4 * CICR (CPM interrupt configuration register): @@ -167,7 +247,7 @@ void _Init68360 (void) * Vector base 128 * SCCs priority grouped at top of table */ - m360.sdcr = M360_SDMA_SISM_7 | M360_SDMA_SAID_4; + m360.sdcr = M360_SDMA_FREEZE | M360_SDMA_SISM_7 | M360_SDMA_SAID_4; m360.cicr = (3 << 22) | (2 << 20) | (1 << 18) | (0 << 16) | (4 << 13) | (0x1F << 8) | (128); @@ -178,7 +258,7 @@ void _Init68360 (void) * BCLRO* arbitration level 3 * No show cycles * User/supervisor access - * Bus clear interupt service level 7 + * Bus clear interrupt service level 7 * SIM60 interrupt sources higher priority than CPM */ m360.mcr = 0x4C7F; diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds index 8869c380a7..6a2d950853 100644 --- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds +++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds @@ -1,5 +1,7 @@ /* - * This file contains GNU linker directives for a generic MC68360 board. + * This file contains GNU linker directives for a generic MC68360 board. + * Variations in hardware type and dynamic memory size can be made + * by overriding some values with linker command-line arguments. * * Saskatchewan Accelerator Laboratory * University of Saskatchewan @@ -10,32 +12,64 @@ */ /* - * Declare on-board memory + * Declare some sizes. + * XXX: The assignment of ". += XyzSize;" fails in older gld's if the + * number used there is not constant. If this happens to you, edit + * the lines marked XXX below to use a constant value. + */ +RamSize = DEFINED(RamSize) ? RamSize : 4M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; +StackSize = DEFINED(StackSize) ? StackSize : 0x1000; + +/* + * Declare hardware type + */ +MC68360HardwareTypeMotorolaGeneric = 0; +MC68360HardwareTypeAtlasHSB = 1; +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; + +/* + * Declare on-board memory. + * It would be nice if the ram length could be given as + * LENGTH=RamSize, but gld doesn't allow non-constant + * values in the LENGTH expression. */ MEMORY { - ram : ORIGIN = 0x00000000, LENGTH = 4M + ram : ORIGIN = 0x00000000, LENGTH = 64M rom : ORIGIN = 0xFF000000, LENGTH = 1M dpram : ORIGIN = 0xFE000000, LENGTH = 8k } /* - * Declare some sizes - * XXX: The assignment of ". += XyzSize;" fails in older gld's if the - * number used there is not constant. If this happens to you, edit - * the lines marked below to use a constant value. + * Declare low-order three octets of Ethernet address. */ -HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; -StackSize = DEFINED(StackSize) ? StackSize : 0x1000; +ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; /* - * Declare low-order three octets of Ethernet address + * Declare hardware type. + * Acceptable values are: + * 0 - Generic system as described in the MC68360 User's Manual + * (MC68360UM/AD Rev. 1). + * 1 - ATLAS Computer Equipment Incorporated ACE360/HSB. */ -ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; /* * Load objects */ SECTIONS { + /* + * Hardware variations + */ + _RamSize = RamSize; + __RamSize = RamSize; + _MC68360HardwareType = MC68360HardwareType; + __MC68360HardwareType = MC68360HardwareType; + _MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + __MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + _MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + __MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + /* * Boot PROM */ diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp new file mode 100644 index 0000000000..0fb1008376 --- /dev/null +++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp @@ -0,0 +1,146 @@ +/* + * This file contains GNU linker directives for a generic MC68360 board. + * Variations in hardware type and dynamic memory size can be made + * by overriding some values with linker command-line arguments. + * + * These linker directives are for producing a PROM version. + * To create the PROM image from the linker output you must use objcopy + * (--adjust-section-vma) to place the data segment at the end of the text + * segment in the PROM. The start-up code takes care of copying this region + * to RAM. + * + * Saskatchewan Accelerator Laboratory + * University of Saskatchewan + * Saskatoon, Saskatchewan, CANADA + * eric@skatter.usask.ca + * + * $Id$ + */ + +/* + * Declare some sizes. + * XXX: The assignment of ". += XyzSize;" fails in older gld's if the + * number used there is not constant. If this happens to you, edit + * the lines marked XXX below to use a constant value. + */ +RamSize = DEFINED(RamSize) ? RamSize : 4M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; +StackSize = DEFINED(StackSize) ? StackSize : 0x1000; + +/* + * Declare hardware type + */ +MC68360HardwareTypeMotorolaGeneric = 0; +MC68360HardwareTypeAtlasHSB = 1; +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; + +/* + * Declare on-board memory. + * It would be nice if the ram length could be given as + * LENGTH=RamSize, but gld doesn't allow non-constant + * values in the LENGTH expression. + */ +MEMORY { + ram : ORIGIN = 0x00000000, LENGTH = 64M + myram : ORIGIN = 4M-512k, LENGTH = 512k + rom : ORIGIN = 0xFF000000, LENGTH = 1M + dpram : ORIGIN = 0xFE000000, LENGTH = 8k +} + +/* + * Declare low-order three octets of Ethernet address. + */ +ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; + +/* + * Declare hardware type. + * Acceptable values are: + * 0 - Generic system as described in the MC68360 User's Manual + * (MC68360UM/AD Rev. 1). + * 1 - ATLAS Computer Equipment Incorporated ACE360/HSB. + */ +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; + +/* + * Load objects + */ +SECTIONS { + /* + * Hardware variations + */ + _RamSize = RamSize; + __RamSize = RamSize; + _MC68360HardwareType = MC68360HardwareType; + __MC68360HardwareType = MC68360HardwareType; + _MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + __MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + _MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + __MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + + /* + * Boot PROM + */ + rom : { + _RomBase = .; + __RomBase = .; + } >rom + + /* + * Dynamic RAM + */ + ram : { + _RamBase = .; + __RamBase = .; + } >ram + + /* + * Text, data and bss segments + */ + .text : AT (0x00000000) { + CREATE_OBJECT_SYMBOLS + *(.text) + . = ALIGN (16); + etext = .; + _etext = .; + } >rom + .data : AT(SIZEOF(.text)) { + copy_start = .; + *(.data) + . = ALIGN (16); + _edata = .; + copy_end = .; + } >myram + .bss : { + M68Kvec = .; + _M68Kvec = .; + . += (256 * 4); + clear_start = .; + *(.bss) + *(COMMON) + . = ALIGN (16); + _end = .; + + _HeapStart = .; + __HeapStart = .; + . += HeapSize; /* XXX -- Old gld can't handle this */ + . += StackSize; /* XXX -- Old gld can't handle this */ + /* . += 0x10000; */ /* HeapSize for old gld */ + /* . += 0x1000; */ /* StackSize for old gld */ + . = ALIGN (16); + stack_init = .; + clear_end = .; + + _WorkspaceBase = .; + __WorkspaceBase = .; + } >myram + + /* + * On-chip memory/peripherals + */ + dpram : { + m360 = .; + _m360 = .; + . += (8 * 1024); + + } >dpram +} diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom index ef1c3ee6e2..64d5fe91a1 100644 --- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom +++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.prom @@ -1,7 +1,10 @@ /* * This file contains GNU linker directives for a generic MC68360 board. - * These linker directives are for producing a PROM version.. - * To create the PROM image from the linkter output you must use objcopy + * Variations in hardware type and dynamic memory size can be made + * by overriding some values with linker command-line arguments. + * + * These linker directives are for producing a BOOTP PROM. + * To create the PROM image from the linker output you must use objcopy * (--adjust-section-vma) to place the data segment at the end of the text * segment in the PROM. The start-up code takes care of copying this region * to RAM. @@ -20,29 +23,64 @@ OUTPUT_FORMAT(coff-m68k) /* - * Declare on-board memory + * Declare some sizes. + * XXX: The assignment of ". += XyzSize;" fails in older gld's if the + * number used there is not constant. If this happens to you, edit + * the lines marked XXX below to use a constant value. + */ +RamSize = DEFINED(RamSize) ? RamSize : 4M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; +StackSize = DEFINED(StackSize) ? StackSize : 0x1000; + +/* + * Declare hardware type + */ +MC68360HardwareTypeMotorolaGeneric = 0; +MC68360HardwareTypeAtlasHSB = 1; +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; + +/* + * Declare on-board memory. + * It would be nice if the ram length could be given as + * LENGTH=RamSize, but gld doesn't allow non-constant + * values in the LENGTH expression. */ MEMORY { - ram : ORIGIN = 0x00000000, LENGTH = 4M + ram : ORIGIN = 0x00000000, LENGTH = 64M rom : ORIGIN = 0xFF000000, LENGTH = 1M dpram : ORIGIN = 0xFE000000, LENGTH = 8k } /* - * Declare some sizes + * Declare low-order three octets of Ethernet address. */ -HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000; -StackSize = DEFINED(StackSize) ? StackSize : 0x1000; +ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; /* - * Declare low-order three octets of Ethernet address + * Declare hardware type. + * Acceptable values are: + * 0 - Generic system as described in the MC68360 User's Manual + * (MC68360UM/AD Rev. 1). + * 1 - ATLAS Computer Equipment Incorporated ACE360/HSB. */ -ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; +MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0; /* * Load objects */ SECTIONS { + /* + * Hardware variations + */ + _RamSize = RamSize; + __RamSize = RamSize; + _MC68360HardwareType = MC68360HardwareType; + __MC68360HardwareType = MC68360HardwareType; + _MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + __MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric; + _MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + __MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB; + /* * Boot PROM */ @@ -88,8 +126,10 @@ SECTIONS { _HeapStart = .; __HeapStart = .; - . += HeapSize; - . += StackSize; + . += HeapSize; /* XXX -- Old gld can't handle this */ + . += StackSize; /* XXX -- Old gld can't handle this */ + /* . += 0x10000; */ /* HeapSize for old gld */ + /* . += 0x1000; */ /* StackSize for old gld */ . = ALIGN (16); stack_init = .; clear_end = .; @@ -107,5 +147,4 @@ SECTIONS { . += (8 * 1024); } >dpram - } diff --git a/c/src/lib/libbsp/m68k/gen68360/wrapup/Makefile.in b/c/src/lib/libbsp/m68k/gen68360/wrapup/Makefile.in index bd06f5f90f..19e418ee06 100644 --- a/c/src/lib/libbsp/m68k/gen68360/wrapup/Makefile.in +++ b/c/src/lib/libbsp/m68k/gen68360/wrapup/Makefile.in @@ -7,11 +7,18 @@ srcdir = @srcdir@ top_srcdir = @top_srcdir@ VPATH=@srcdir@ -BSP_PIECES=startup clock console timer +# We only build the ka9q device driver if HAS_KA9Q was defined +LIBKA9Q_yes_V = network +LIBKA9Q = $(LIBKA9Q_$(HAS_KA9Q)_V) + +BSP_PIECES=startup clock console $(LIBKA9Q) timer +CPU_PIECES= GENERIC_PIECES= # bummer; have to use $foreach since % pattern subst rules only replace 1x OBJS=$(foreach piece, $(BSP_PIECES), ../$(piece)/$(ARCH)/$(piece).rel) \ + $(foreach piece, $(CPU_PIECES), \ + ../../../../libcpu/$(RTEMS_CPU)/$(piece)/$(ARCH)/$(piece).rel) \ $(foreach piece, $(GENERIC_PIECES), ../../../$(piece)/$(ARCH)/$(piece).rel) LIB=$(ARCH)/libbsp.a |