URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
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- This comparison shows the changes necessary to convert path
/openrisc/trunk
- from Rev 372 to Rev 373
- ↔ Reverse comparison
Rev 372 → Rev 373
/orpsocv2/rtl/verilog/include/uart_defines.v
240,8 → 240,11
`define FAST_TEST 1 // 64/1024 packets are sent |
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// Defines hard baud prescaler register - uncomment to enable |
//`define PRESCALER_PRESET_HARD |
`define PRESCALER_PRESET_HARD |
// 115200 baud preset values |
// 20MHz: prescaler 10.8 (11, rounded up) |
//`define PRESCALER_HIGH_PRESET 8'd0 |
//`define PRESCALER_LOW_PRESET 8'd11 |
// 50MHz: prescaler 27.1 |
`define PRESCALER_HIGH_PRESET 8'd0 |
`define PRESCALER_LOW_PRESET 8'd11 |
`define PRESCALER_LOW_PRESET 8'd27 |
/orpsocv2/sw/include/board.h
12,6 → 12,8
#define UART0_IRQ 2 |
#define UART0_BAUD_RATE 115200 |
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#define SPI0_BASE 0xb0000000 |
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// |
// OR1200 tick timer period define |
// |
/orpsocv2/sw/or1200/or1200-mmu.c
91,10 → 91,10
#define DO_DMMU_TESTS 1 |
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// Symbols defined in linker script |
extern unsigned long endtext; |
extern unsigned long stext; |
extern unsigned long edata; |
extern unsigned long stack; |
extern unsigned long _endtext; |
extern unsigned long _stext; |
extern unsigned long _edata; |
extern unsigned long _stack; |
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unsigned long start_text_addr; |
unsigned long end_text_addr; |
292,7 → 292,7
printf("dtlb miss ea = %.8lx set = %d way = %d\n", ea, set, way); |
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// Anything under the stack belongs to the program, direct tranlsate it |
if (ea < (unsigned long)&stack){ |
if (ea < (unsigned long)&_stack){ |
/* If this is acces to data of this program set one to one translation */ |
mtspr (SPR_DTLBMR_BASE(way) + set, (ea & SPR_DTLBMR_VPN) | SPR_DTLBMR_V); |
mtspr (SPR_DTLBTR_BASE(way) + set, (ea & SPR_DTLBTR_PPN) | DTLB_PR_NOLIMIT); |
1424,9 → 1424,9
{ |
int i, j; |
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start_text_addr = (unsigned long*)&stext; |
end_text_addr = (unsigned long*)&endtext; |
end_data_addr = (unsigned long*)&stack; |
start_text_addr = (unsigned long*)&_stext; |
end_text_addr = (unsigned long*)&_endtext; |
end_data_addr = (unsigned long*)&_stack; |
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#ifndef TLB_BOTTOM_TEST_PAGE_HARDSET |
/orpsocv2/sw/or1200asm/or1200asm-except.S
658,7 → 658,7
// Check the DMMU is the in the design, otherwise don't compile in this |
// test. |
#ifndef OR1200_NO_DMMU |
.extern _lo_dmmu_en |
.extern lo_dmmu_en |
_dmmu_except1: |
/* Call DMMU invalidate function */ |
l.movhi r4, hi(_dmmu_invalidate) |
679,8 → 679,8
l.nop |
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/* Now enable DMMU */ |
l.movhi r4, hi(_lo_dmmu_en) |
l.ori r4, r4, lo(_lo_dmmu_en) |
l.movhi r4, hi(lo_dmmu_en) |
l.ori r4, r4, lo(lo_dmmu_en) |
l.jalr r4 |
l.nop |
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807,7 → 807,7
l.nop 2 |
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l.addi r3,r0,0 |
l.jal _exit |
l.jal exit |
l.nop |
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/orpsocv2/sw/or1200asm/or1200asm-tick.S
152,7 → 152,7
l.addi r3,r0,0xeeee |
l.nop 2 |
l.addi r3,r0,1 |
l.jal _exit |
l.jal exit |
l.nop |
1: |
l.j 1b |
491,7 → 491,7
l.nop 2 |
l.addi r3,r0,0 |
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l.jal _exit |
l.jal exit |
l.nop |
_ok: |
l.j _ok |
/orpsocv2/sw/support/or1200-mmu.S
1,8 → 1,8
#include "spr-defs.h" |
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/* MMU enable functions */ |
.global _lo_dmmu_en |
_lo_dmmu_en: |
.global lo_dmmu_en |
lo_dmmu_en: |
l.mfspr r3,r0,SPR_SR |
l.ori r3,r3,SPR_SR_DME |
l.mtspr r0,r3,SPR_ESR_BASE |
10,8 → 10,8
l.rfe |
l.nop |
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.global _lo_immu_en |
_lo_immu_en: |
.global lo_immu_en |
lo_immu_en: |
l.mfspr r3,r0,SPR_SR |
l.ori r3,r3,SPR_SR_IME |
l.mtspr r0,r3,SPR_ESR_BASE |
/orpsocv2/sw/support/crt0.S
70,12 → 70,12
#define TIMER_RELOAD_VALUE (SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD)) |
//UNHANDLED_EXCEPTION |
/* Simply load timer_ticks variable and increment */ |
.extern _timer_ticks |
.extern timer_ticks |
l.addi r1, r1, -8 |
l.sw 0(r1), r25 |
l.sw 4(r1), r26 |
l.movhi r25, hi(_timer_ticks) |
l.ori r25, r25, lo(_timer_ticks) |
l.movhi r25, hi(timer_ticks) |
l.ori r25, r25, lo(timer_ticks) |
l.lwz r26, 0(r25) /* Load variable addr.*/ |
l.addi r26, r26, 1 /* Increment variable */ |
l.sw 0(r25), r26 /* Store variable */ |
314,12 → 314,12
/* Jump to main program entry point (argc = argv = 0) */ |
CLEAR_GPR(r3) |
CLEAR_GPR(r4) |
l.jal _main |
l.jal main |
l.nop |
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/* If program exits, call exit routine */ |
l.addi r3, r11, 0 |
l.jal _exit |
l.jal exit |
l.nop |
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356,7 → 356,7
l.sw 0x74(r1), r31 |
l.sw 0x78(r1), r32 |
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l.jal _default_exception_handler_c |
l.jal default_exception_handler_c |
l.nop |
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l.lwz r2, 0x00(r1) |
/orpsocv2/sw/support/Makefile
3,7 → 3,7
all: $(DESIGN_NAME)_support.a |
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SUPPORT_MODULES=exceptions int or32-utils \ |
uart printf or1200-mmu |
uart printf or1200-mmu simple-spi |
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SUPPORT_OBJS=$(shell for mod in $(SUPPORT_MODULES); do echo "$$mod".o; done) |
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