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authorJoel Sherrill <joel.sherrill@OARcorp.com>1997-04-16 17:45:35 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1997-04-16 17:45:35 +0000
commitf8f370b6452c12ace4a7671c66e831a727b19c4d (patch)
tree47085304595abd6b0c7fc155b52c433de9f2ca09 /c/src/lib/libbsp/m68k/gen68360/startup
parentUpdated to reflect Tony Bennett's new email address and the incorporation (diff)
downloadrtems-f8f370b6452c12ace4a7671c66e831a727b19c4d.tar.bz2
Update from Eric Norum.
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/startup')
-rw-r--r--c/src/lib/libbsp/m68k/gen68360/startup/init68360.c450
-rw-r--r--c/src/lib/libbsp/m68k/gen68360/startup/linkcmds30
-rw-r--r--c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp34
3 files changed, 366 insertions, 148 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c b/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c
index 5326cc0307..64cf94e6d4 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/init68360.c
@@ -32,14 +32,167 @@ void M360ExecuteRISC(rtems_unsigned16 command)
/*
* Initialize MC68360
*/
-
void _Init68360 (void)
{
int i;
- unsigned long l;
m68k_isr_entry *vbr;
extern void _CopyDataClearBSSAndStart (void);
+#if (defined (m68040) || defined (m68lc040) || defined (m68ec040))
+ /*
+ *******************************************
+ * Motorola 68040 and companion-mode 68360 *
+ *******************************************
+ */
+
+ /*
+ * Step 6: Is this a power-up reset?
+ * For now we just ignore this and do *all* the steps
+ * Someday we might want to:
+ * if (Hard, Loss of Clock, Power-up)
+ * Do all steps
+ * else if (Double bus fault, watchdog or soft reset)
+ * Skip to step 12
+ * else (must be a reset command)
+ * Skip to step 14
+ */
+
+ /*
+ * Step 7: Deal with clock synthesizer
+ * HARDWARE:
+ * Change if you're not using an external 25 MHz oscillator.
+ */
+ m360.clkocr = 0x83; /* No more writes, full-power CLKO2 */
+ 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
+ * Slowest watchdog timeout
+ * Disable double bus fault monitor
+ * Enable bus monitor external
+ * 1024 clocks for external timeout
+ */
+ m360.sypcr = 0x74;
+
+ /*
+ * Step 9: Clear parameter RAM and reset communication processor module
+ */
+ for (i = 0 ; i < 192 ; i += sizeof (long)) {
+ *((long *)((char *)&m360 + 0xC00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xD00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xE00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xF00 + i)) = 0;
+ }
+ M360ExecuteRISC (M360_CR_RST);
+
+ /*
+ * Step 10: Write PEPAR
+ * SINTOUT standard M68000 family interrupt level encoding
+ * CF1MODE=10 (BCLRO* output)
+ * No RAS1* double drive
+ * A31 - A28
+ * AMUX output
+ * CAS2* - CAS3*
+ * CAS0* - CAS1*
+ * CS7*
+ * AVEC*
+ */
+ m360.pepar = 0x3440;
+
+ /*
+ * Step 11: Remap Chip Select 0 (CS0*), set up GMR
+ */
+ /*
+ * 512 addresses per DRAM page (256K DRAM chips)
+ * 70 nsec DRAM
+ * 180 nsec ROM (3 wait states)
+ */
+ m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN |
+ M360_GMR_RCYC(0) | M360_GMR_PGS(1) |
+ M360_GMR_DPS_32BIT | M360_GMR_NCS |
+ M360_GMR_TSS40;
+ 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_32BIT;
+
+ /*
+ * Step 12: Initialize the system RAM
+ */
+ /*
+ * Set up option/base registers
+ * 1M DRAM
+ * 70 nsec DRAM
+ * Enable burst mode
+ * No parity checking
+ * Wait for chips to power up
+ * Perform 8 read cycles
+ */
+ m360.memc[1].or = M360_MEMC_OR_TCYC(0) |
+ M360_MEMC_OR_1MB |
+ M360_MEMC_OR_DRAM;
+ m360.memc[1].br = (unsigned long)&_RamBase |
+ M360_MEMC_BR_BACK40 |
+ M360_MEMC_BR_V;
+ for (i = 0; i < 50000; i++)
+ continue;
+ for (i = 0; i < 8; ++i)
+ *((volatile unsigned long *)(unsigned long)&_RamBase);
+
+ /*
+ * Step 13: Copy the exception vector table to system RAM
+ */
+ m68k_get_vbr (vbr);
+ for (i = 0; i < 256; ++i)
+ M68Kvec[i] = vbr[i];
+ m68k_set_vbr (M68Kvec);
+
+ /*
+ * 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):
+ * SCC1 requests at SCCa position
+ * SCC2 requests at SCCb position
+ * SCC3 requests at SCCc position
+ * SCC4 requests at SCCd position
+ * Interrupt request level 4
+ * Maintain original priority order
+ * Vector base 128
+ * SCCs priority grouped at top of table
+ */
+ 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);
+
+ /*
+ * Step 15: Set module configuration register
+ * Bus request MC68040 Arbitration ID 3
+ * Bus asynchronous timing mode (work around bug in Rev. B)
+ * Arbitration asynchronous timing mode
+ * Disable timers during FREEZE
+ * Disable bus monitor during FREEZE
+ * BCLRO* arbitration level 3
+ * No show cycles
+ * User/supervisor access
+ * Bus clear in arbitration ID level 3
+ * SIM60 interrupt sources higher priority than CPM
+ */
+ m360.mcr = 0x6000EC3F;
+
+#elif (defined (M68360_ATLAS_HSB))
+ /*
+ ******************************************
+ * Standalone Motorola 68360 -- ATLAS HSB *
+ ******************************************
+ */
+
/*
* Step 6: Is this a power-up reset?
* For now we just ignore this and do *all* the steps
@@ -104,124 +257,234 @@ void _Init68360 (void)
/*
* Step 11: Remap Chip Select 0 (CS0*), set up GMR
*/
- if (&_MC68360HardwareType == &_MC68360HardwareTypeAtlasHSB) {
- m360.gmr = M360_GMR_RCNT(12) | M360_GMR_RFEN |
+ 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[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[0].or = M360_MEMC_OR_WAITS(3) | M360_MEMC_OR_1MB |
M360_MEMC_OR_8BIT;
+
+ /*
+ * Step 12: Initialize the system RAM
+ */
+ /* 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);
+
+ /*
+ * Step 13: Copy the exception vector table to system RAM
+ */
+ m68k_get_vbr (vbr);
+ for (i = 0; i < 256; ++i)
+ M68Kvec[i] = vbr[i];
+ m68k_set_vbr (M68Kvec);
+
+ /*
+ * 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):
+ * SCC1 requests at SCCa position
+ * SCC2 requests at SCCb position
+ * SCC3 requests at SCCc position
+ * SCC4 requests at SCCd position
+ * Interrupt request level 4
+ * Maintain original priority order
+ * Vector base 128
+ * SCCs priority grouped at top of table
+ */
+ 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);
+
+ /*
+ * Step 15: Set module configuration register
+ * Disable timers during FREEZE
+ * Enable bus monitor during FREEZE
+ * BCLRO* arbitration level 3
+ * No show cycles
+ * User/supervisor access
+ * Bus clear interrupt service level 7
+ * SIM60 interrupt sources higher priority than CPM
+ */
+ m360.mcr = 0x4C7F;
+
+#else
+ /*
+ ***************************************************
+ * Generic Standalone Motorola 68360 *
+ * As described in MC68360 User's Manual *
+ * Atlas ACE360 *
+ ***************************************************
+ */
+
+ /*
+ * Step 6: Is this a power-up reset?
+ * For now we just ignore this and do *all* the steps
+ * Someday we might want to:
+ * if (Hard, Loss of Clock, Power-up)
+ * Do all steps
+ * else if (Double bus fault, watchdog or soft reset)
+ * Skip to step 12
+ * else (must be a CPU32+ reset command)
+ * Skip to step 14
+ */
+
+ /*
+ * Step 7: Deal with clock synthesizer
+ * HARDWARE:
+ * 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.cdvcr = 0x8000; /* No more writes, no clock division */
+
+ /*
+ * Step 8: Initialize system protection
+ * Disable watchdog FIXME: Should use watchdog!!!!
+ * Watchdog causes system reset
+ * Slowest watchdog timeout
+ * Enable double bus fault monitor
+ * Enable bus monitor external
+ * 128 clocks for external timeout
+ */
+ m360.sypcr = 0x7F;
+
+ /*
+ * Step 9: Clear parameter RAM and reset communication processor module
+ */
+ for (i = 0 ; i < 192 ; i += sizeof (long)) {
+ *((long *)((char *)&m360 + 0xC00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xD00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xE00 + i)) = 0;
+ *((long *)((char *)&m360 + 0xF00 + i)) = 0;
}
- 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 |
+ M360ExecuteRISC (M360_CR_RST);
+
+ /*
+ * Step 10: Write PEPAR
+ * SINTOUT not used (CPU32+ mode)
+ * CF1MODE=00 (CONFIG1 input)
+ * RAS1* double drive
+ * WE0* - WE3*
+ * OE* output
+ * CAS2* - CAS3*
+ * CAS0* - CAS1*
+ * CS7*
+ * AVEC*
+ * HARDWARE:
+ * Change if you are using a different memory configuration
+ * (static RAM, external address multiplexing, etc).
+ */
+ m360.pepar = 0x0180;
+
+ /*
+ * Step 11: Remap Chip Select 0 (CS0*), set up GMR
+ */
+ /*
+ * 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;
+ break;
- case 16*1024*1024:
- m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN |
+ 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;
+ break;
- case 64*1024*1024:
- m360.gmr = M360_GMR_RCNT(24) | M360_GMR_RFEN |
+ 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 |
+ 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[0].or = M360_MEMC_OR_WAITS(3) | M360_MEMC_OR_1MB |
M360_MEMC_OR_8BIT;
- }
/*
* Step 12: Initialize the system RAM
*/
- 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;
+ /*
+ * 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;
- /* 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;
+ case 16*1024*1024:
+ m360.memc[1].or = M360_MEMC_OR_TCYC(0) |
+ M360_MEMC_OR_16MB |
+ M360_MEMC_OR_DRAM;
+ break;
- /* 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);
+ case 64*1024*1024:
+ m360.memc[1].or = M360_MEMC_OR_TCYC(0) |
+ M360_MEMC_OR_64MB |
+ M360_MEMC_OR_DRAM;
+ break;
}
- 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;
+ 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 < (unsigned long)&_RamSize ; 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 | M360_MEMC_BR_V;
/*
* Step 13: Copy the exception vector table to system RAM
@@ -262,6 +525,7 @@ void _Init68360 (void)
* SIM60 interrupt sources higher priority than CPM
*/
m360.mcr = 0x4C7F;
+#endif
/*
* Copy data, clear BSS, switch stacks and call main()
diff --git a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
index 6a2d950853..b50954e10c 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds
@@ -1,7 +1,7 @@
/*
* 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.
+ * Variations in memory size and allocation can be made by
+ * overriding some values with linker command-line arguments.
*
* Saskatchewan Accelerator Laboratory
* University of Saskatchewan
@@ -22,13 +22,6 @@ 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
@@ -36,8 +29,8 @@ MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0;
*/
MEMORY {
ram : ORIGIN = 0x00000000, LENGTH = 64M
- rom : ORIGIN = 0xFF000000, LENGTH = 1M
- dpram : ORIGIN = 0xFE000000, LENGTH = 8k
+ rom : ORIGIN = 0x0F000000, LENGTH = 1M
+ dpram : ORIGIN = 0x0E000000, LENGTH = 8k
}
/*
@@ -46,15 +39,6 @@ MEMORY {
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 {
@@ -63,12 +47,6 @@ SECTIONS {
*/
_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
index 0fb1008376..a39b355e25 100644
--- a/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
+++ b/c/src/lib/libbsp/m68k/gen68360/startup/linkcmds.bootp
@@ -4,16 +4,14 @@
* 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.
+ * The data segment is placed 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
- *
+ *
* $Id$
*/
@@ -28,13 +26,6 @@ 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
@@ -43,8 +34,8 @@ MC68360HardwareType = DEFINED(MC68360HardwareType) ? MC68360HardwareType : 0;
MEMORY {
ram : ORIGIN = 0x00000000, LENGTH = 64M
myram : ORIGIN = 4M-512k, LENGTH = 512k
- rom : ORIGIN = 0xFF000000, LENGTH = 1M
- dpram : ORIGIN = 0xFE000000, LENGTH = 8k
+ rom : ORIGIN = 0x0F000000, LENGTH = 1M
+ dpram : ORIGIN = 0x0E000000, LENGTH = 8k
}
/*
@@ -53,15 +44,6 @@ MEMORY {
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 {
@@ -70,12 +52,6 @@ SECTIONS {
*/
_RamSize = RamSize;
__RamSize = RamSize;
- _MC68360HardwareType = MC68360HardwareType;
- __MC68360HardwareType = MC68360HardwareType;
- _MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric;
- __MC68360HardwareTypeMotorolaGeneric = MC68360HardwareTypeMotorolaGeneric;
- _MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB;
- __MC68360HardwareTypeAtlasHSB = MC68360HardwareTypeAtlasHSB;
/*
* Boot PROM