mirror of
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8db098dd8f
If it does not, the address to which mkmscimg.py writes the CRC and the address from which it is read could differ.
562 lines
13 KiB
C
562 lines
13 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <console.h>
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#include <string.h>
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#include <uart.h>
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#include <system.h>
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#include <id.h>
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#include <irq.h>
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#include <crc.h>
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#include <generated/csr.h>
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#include <generated/mem.h>
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#include <net/microudp.h>
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#include "sdram.h"
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#include "dataflow.h"
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#include "boot.h"
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/* General address space functions */
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#define NUMBER_OF_BYTES_ON_A_LINE 16
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static void dump_bytes(unsigned int *ptr, int count, unsigned addr)
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{
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char *data = (char *)ptr;
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int line_bytes = 0, i = 0;
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putsnonl("Memory dump:");
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while(count > 0){
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line_bytes =
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(count > NUMBER_OF_BYTES_ON_A_LINE)?
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NUMBER_OF_BYTES_ON_A_LINE : count;
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printf("\n0x%08x ", addr);
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for(i=0;i<line_bytes;i++)
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printf("%02x ", *(unsigned char *)(data+i));
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for(;i<NUMBER_OF_BYTES_ON_A_LINE;i++)
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printf(" ");
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printf(" ");
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for(i=0;i<line_bytes;i++) {
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if((*(data+i) < 0x20) || (*(data+i) > 0x7e))
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printf(".");
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else
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printf("%c", *(data+i));
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}
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for(;i<NUMBER_OF_BYTES_ON_A_LINE;i++)
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printf(" ");
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data += (char)line_bytes;
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count -= line_bytes;
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addr += line_bytes;
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}
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printf("\n");
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}
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static void mr(char *startaddr, char *len)
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{
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char *c;
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unsigned int *addr;
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unsigned int length;
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if(*startaddr == 0) {
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printf("mr <address> [length]\n");
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return;
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}
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addr = (unsigned *)strtoul(startaddr, &c, 0);
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if(*c != 0) {
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printf("incorrect address\n");
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return;
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}
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if(*len == 0) {
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length = 4;
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} else {
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length = strtoul(len, &c, 0);
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if(*c != 0) {
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printf("incorrect length\n");
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return;
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}
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}
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dump_bytes(addr, length, (unsigned)addr);
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}
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static void mw(char *addr, char *value, char *count)
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{
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char *c;
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unsigned int *addr2;
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unsigned int value2;
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unsigned int count2;
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unsigned int i;
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if((*addr == 0) || (*value == 0)) {
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printf("mw <address> <value> [count]\n");
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return;
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}
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addr2 = (unsigned int *)strtoul(addr, &c, 0);
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if(*c != 0) {
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printf("incorrect address\n");
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return;
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}
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value2 = strtoul(value, &c, 0);
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if(*c != 0) {
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printf("incorrect value\n");
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return;
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}
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if(*count == 0) {
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count2 = 1;
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} else {
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count2 = strtoul(count, &c, 0);
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if(*c != 0) {
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printf("incorrect count\n");
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return;
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}
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}
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for (i=0;i<count2;i++) *addr2++ = value2;
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}
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static void mc(char *dstaddr, char *srcaddr, char *count)
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{
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char *c;
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unsigned int *dstaddr2;
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unsigned int *srcaddr2;
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unsigned int count2;
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unsigned int i;
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if((*dstaddr == 0) || (*srcaddr == 0)) {
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printf("mc <dst> <src> [count]\n");
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return;
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}
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dstaddr2 = (unsigned int *)strtoul(dstaddr, &c, 0);
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if(*c != 0) {
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printf("incorrect destination address\n");
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return;
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}
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srcaddr2 = (unsigned int *)strtoul(srcaddr, &c, 0);
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if(*c != 0) {
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printf("incorrect source address\n");
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return;
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}
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if(*count == 0) {
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count2 = 1;
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} else {
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count2 = strtoul(count, &c, 0);
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if(*c != 0) {
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printf("incorrect count\n");
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return;
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}
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}
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for (i=0;i<count2;i++) *dstaddr2++ = *srcaddr2++;
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}
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static void crc(char *startaddr, char *len)
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{
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char *c;
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char *addr;
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unsigned int length;
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if((*startaddr == 0)||(*len == 0)) {
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printf("crc <address> <length>\n");
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return;
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}
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addr = (char *)strtoul(startaddr, &c, 0);
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if(*c != 0) {
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printf("incorrect address\n");
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return;
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}
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length = strtoul(len, &c, 0);
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if(*c != 0) {
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printf("incorrect length\n");
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return;
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}
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printf("CRC32: %08x\n", crc32((unsigned char *)addr, length));
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}
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#ifdef __lm32__
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enum {
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CSR_IE = 1, CSR_IM, CSR_IP, CSR_ICC, CSR_DCC, CSR_CC, CSR_CFG, CSR_EBA,
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CSR_DC, CSR_DEBA, CSR_JTX, CSR_JRX, CSR_BP0, CSR_BP1, CSR_BP2, CSR_BP3,
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CSR_WP0, CSR_WP1, CSR_WP2, CSR_WP3,
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};
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/* processor registers */
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static int parse_csr(const char *csr)
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{
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if(!strcmp(csr, "ie")) return CSR_IE;
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if(!strcmp(csr, "im")) return CSR_IM;
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if(!strcmp(csr, "ip")) return CSR_IP;
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if(!strcmp(csr, "icc")) return CSR_ICC;
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if(!strcmp(csr, "dcc")) return CSR_DCC;
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if(!strcmp(csr, "cc")) return CSR_CC;
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if(!strcmp(csr, "cfg")) return CSR_CFG;
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if(!strcmp(csr, "eba")) return CSR_EBA;
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if(!strcmp(csr, "dc")) return CSR_DC;
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if(!strcmp(csr, "deba")) return CSR_DEBA;
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if(!strcmp(csr, "jtx")) return CSR_JTX;
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if(!strcmp(csr, "jrx")) return CSR_JRX;
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if(!strcmp(csr, "bp0")) return CSR_BP0;
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if(!strcmp(csr, "bp1")) return CSR_BP1;
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if(!strcmp(csr, "bp2")) return CSR_BP2;
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if(!strcmp(csr, "bp3")) return CSR_BP3;
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if(!strcmp(csr, "wp0")) return CSR_WP0;
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if(!strcmp(csr, "wp1")) return CSR_WP1;
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if(!strcmp(csr, "wp2")) return CSR_WP2;
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if(!strcmp(csr, "wp3")) return CSR_WP3;
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return 0;
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}
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static void rcsr(char *csr)
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{
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unsigned int csr2;
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register unsigned int value;
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if(*csr == 0) {
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printf("rcsr <csr>\n");
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return;
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}
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csr2 = parse_csr(csr);
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if(csr2 == 0) {
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printf("incorrect csr\n");
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return;
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}
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switch(csr2) {
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case CSR_IE: asm volatile ("rcsr %0,ie":"=r"(value)); break;
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case CSR_IM: asm volatile ("rcsr %0,im":"=r"(value)); break;
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case CSR_IP: asm volatile ("rcsr %0,ip":"=r"(value)); break;
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case CSR_CC: asm volatile ("rcsr %0,cc":"=r"(value)); break;
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case CSR_CFG: asm volatile ("rcsr %0,cfg":"=r"(value)); break;
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case CSR_EBA: asm volatile ("rcsr %0,eba":"=r"(value)); break;
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case CSR_DEBA: asm volatile ("rcsr %0,deba":"=r"(value)); break;
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case CSR_JTX: asm volatile ("rcsr %0,jtx":"=r"(value)); break;
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case CSR_JRX: asm volatile ("rcsr %0,jrx":"=r"(value)); break;
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default: printf("csr write only\n"); return;
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}
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printf("%08x\n", value);
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}
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static void wcsr(char *csr, char *value)
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{
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char *c;
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unsigned int csr2;
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register unsigned int value2;
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if((*csr == 0) || (*value == 0)) {
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printf("wcsr <csr> <address>\n");
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return;
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}
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csr2 = parse_csr(csr);
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if(csr2 == 0) {
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printf("incorrect csr\n");
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return;
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}
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value2 = strtoul(value, &c, 0);
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if(*c != 0) {
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printf("incorrect value\n");
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return;
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}
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switch(csr2) {
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case CSR_IE: asm volatile ("wcsr ie,%0"::"r"(value2)); break;
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case CSR_IM: asm volatile ("wcsr im,%0"::"r"(value2)); break;
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case CSR_ICC: asm volatile ("wcsr icc,%0"::"r"(value2)); break;
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case CSR_DCC: asm volatile ("wcsr dcc,%0"::"r"(value2)); break;
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case CSR_EBA: asm volatile ("wcsr eba,%0"::"r"(value2)); break;
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case CSR_DC: asm volatile ("wcsr dcc,%0"::"r"(value2)); break;
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case CSR_DEBA: asm volatile ("wcsr deba,%0"::"r"(value2)); break;
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case CSR_JTX: asm volatile ("wcsr jtx,%0"::"r"(value2)); break;
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case CSR_JRX: asm volatile ("wcsr jrx,%0"::"r"(value2)); break;
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case CSR_BP0: asm volatile ("wcsr bp0,%0"::"r"(value2)); break;
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case CSR_BP1: asm volatile ("wcsr bp1,%0"::"r"(value2)); break;
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case CSR_BP2: asm volatile ("wcsr bp2,%0"::"r"(value2)); break;
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case CSR_BP3: asm volatile ("wcsr bp3,%0"::"r"(value2)); break;
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case CSR_WP0: asm volatile ("wcsr wp0,%0"::"r"(value2)); break;
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case CSR_WP1: asm volatile ("wcsr wp1,%0"::"r"(value2)); break;
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case CSR_WP2: asm volatile ("wcsr wp2,%0"::"r"(value2)); break;
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case CSR_WP3: asm volatile ("wcsr wp3,%0"::"r"(value2)); break;
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default: printf("csr read only\n"); return;
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}
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}
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#endif /* __lm32__ */
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static void dfs(char *baseaddr)
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{
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char *c;
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unsigned int addr;
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if(*baseaddr == 0) {
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printf("dfs <address>\n");
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return;
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}
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addr = strtoul(baseaddr, &c, 0);
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if(*c != 0) {
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printf("incorrect address\n");
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return;
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}
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print_isd_info(addr);
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}
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/* Init + command line */
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static void help(void)
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{
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puts("MiSoC BIOS");
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puts("Available commands:");
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puts("mr - read address space");
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puts("mw - write address space");
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puts("mc - copy address space");
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puts("crc - compute CRC32 of a part of the address space");
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#ifdef __lm32__
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puts("rcsr - read processor CSR");
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puts("wcsr - write processor CSR");
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#endif
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#ifdef CSR_ETHMAC_BASE
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puts("netboot - boot via TFTP");
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#endif
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puts("serialboot - boot via SFL");
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#ifdef FLASH_BOOT_ADDRESS
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puts("flashboot - boot from flash");
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#endif
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#ifdef ROM_BOOT_ADDRESS
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puts("romboot - boot from embedded rom");
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#endif
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puts("revision - display revision");
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#ifdef CSR_SDRAM_BASE
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puts("memtest - run a memory test");
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#endif
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}
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static char *get_token(char **str)
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{
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char *c, *d;
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c = (char *)strchr(*str, ' ');
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if(c == NULL) {
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d = *str;
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*str = *str+strlen(*str);
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return d;
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}
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*c = 0;
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d = *str;
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*str = c+1;
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return d;
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}
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static void do_command(char *c)
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{
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char *token;
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token = get_token(&c);
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if(strcmp(token, "mr") == 0) mr(get_token(&c), get_token(&c));
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else if(strcmp(token, "mw") == 0) mw(get_token(&c), get_token(&c), get_token(&c));
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else if(strcmp(token, "mc") == 0) mc(get_token(&c), get_token(&c), get_token(&c));
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else if(strcmp(token, "crc") == 0) crc(get_token(&c), get_token(&c));
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#ifdef L2_SIZE
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else if(strcmp(token, "flushl2") == 0) flush_l2_cache();
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#endif
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#ifdef FLASH_BOOT_ADDRESS
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else if(strcmp(token, "flashboot") == 0) flashboot();
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#endif
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#ifdef ROM_BOOT_ADDRESS
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else if(strcmp(token, "romboot") == 0) romboot();
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#endif
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else if(strcmp(token, "serialboot") == 0) serialboot();
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#ifdef CSR_ETHMAC_BASE
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else if(strcmp(token, "netboot") == 0) netboot();
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#endif
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else if(strcmp(token, "revision") == 0) printf("%08x\n", MSC_GIT_ID);
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else if(strcmp(token, "help") == 0) help();
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#ifdef __lm32__
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else if(strcmp(token, "rcsr") == 0) rcsr(get_token(&c));
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else if(strcmp(token, "wcsr") == 0) wcsr(get_token(&c), get_token(&c));
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#endif
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#ifdef CSR_SDRAM_BASE
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else if(strcmp(token, "sdrrow") == 0) sdrrow(get_token(&c));
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else if(strcmp(token, "sdrsw") == 0) sdrsw();
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else if(strcmp(token, "sdrhw") == 0) sdrhw();
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else if(strcmp(token, "sdrrdbuf") == 0) sdrrdbuf(-1);
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else if(strcmp(token, "sdrrd") == 0) sdrrd(get_token(&c), get_token(&c));
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else if(strcmp(token, "sdrrderr") == 0) sdrrderr(get_token(&c));
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else if(strcmp(token, "sdrwr") == 0) sdrwr(get_token(&c));
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#ifdef CSR_DDRPHY_BASE
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else if(strcmp(token, "sdrwlon") == 0) sdrwlon();
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else if(strcmp(token, "sdrwloff") == 0) sdrwloff();
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else if(strcmp(token, "sdrlevel") == 0) sdrlevel();
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#endif
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else if(strcmp(token, "memtest") == 0) memtest();
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else if(strcmp(token, "sdrinit") == 0) sdrinit();
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#endif
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else if(strcmp(token, "dfs") == 0) dfs(get_token(&c));
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else if(strcmp(token, "") != 0)
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printf("Command not found\n");
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}
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extern unsigned int _ftext, _erodata;
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static void crcbios(void)
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{
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unsigned int offset_bios;
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unsigned int length;
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unsigned int expected_crc;
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unsigned int actual_crc;
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/*
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* _erodata is located right after the end of the flat
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* binary image. The CRC tool writes the 32-bit CRC here.
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* We also use the address of _erodata to know the length
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* of our code.
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*/
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offset_bios = (unsigned int)&_ftext;
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expected_crc = _erodata;
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length = (unsigned int)&_erodata - offset_bios;
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actual_crc = crc32((unsigned char *)offset_bios, length);
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if(expected_crc == actual_crc)
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printf("BIOS CRC passed (%08x)\n", actual_crc);
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else {
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printf("BIOS CRC failed (expected %08x, got %08x)\n", expected_crc, actual_crc);
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printf("The system will continue, but expect problems.\n");
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}
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}
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static void readstr(char *s, int size)
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{
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char c[2];
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int ptr;
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c[1] = 0;
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ptr = 0;
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while(1) {
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c[0] = readchar();
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switch(c[0]) {
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case 0x7f:
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case 0x08:
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if(ptr > 0) {
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ptr--;
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putsnonl("\x08 \x08");
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}
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break;
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case 0x07:
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break;
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case '\r':
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case '\n':
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s[ptr] = 0x00;
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putsnonl("\n");
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return;
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default:
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putsnonl(c);
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s[ptr] = c[0];
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ptr++;
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break;
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}
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}
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}
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static int test_user_abort(void)
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{
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char c;
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printf("Automatic boot in 2 seconds...\n");
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printf("Q/ESC: abort boot\n");
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printf("F7: boot from serial\n");
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#ifdef CSR_ETHMAC_BASE
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printf("F8: boot from network\n");
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#endif
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timer0_en_write(0);
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timer0_reload_write(0);
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timer0_load_write(identifier_frequency_read()*2);
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timer0_en_write(1);
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timer0_update_value_write(1);
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while(timer0_value_read()) {
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if(readchar_nonblock()) {
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c = readchar();
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if((c == 'Q')||(c == '\e')) {
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puts("Aborted");
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return 0;
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}
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|
if(c == 0x06) {
|
|
serialboot();
|
|
return 0;
|
|
}
|
|
#ifdef CSR_ETHMAC_BASE
|
|
if(c == 0x07) {
|
|
netboot();
|
|
return 0;
|
|
}
|
|
#endif
|
|
}
|
|
timer0_update_value_write(1);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void boot_sequence(void)
|
|
{
|
|
if(test_user_abort()) {
|
|
#ifdef FLASH_BOOT_ADDRESS
|
|
flashboot();
|
|
#endif
|
|
#ifdef ROM_BOOT_ADDRESS
|
|
romboot();
|
|
#endif
|
|
serialboot();
|
|
#ifdef CSR_ETHMAC_BASE
|
|
#ifdef CSR_ETHPHY_MODE_DETECTION_MODE_ADDR
|
|
eth_mode();
|
|
#endif
|
|
netboot();
|
|
#endif
|
|
printf("No boot medium found\n");
|
|
}
|
|
}
|
|
|
|
int main(int i, char **c)
|
|
{
|
|
char buffer[64];
|
|
int sdr_ok;
|
|
|
|
irq_setmask(0);
|
|
irq_setie(1);
|
|
uart_init();
|
|
puts("\nMiSoC BIOS http://m-labs.hk\n"
|
|
"(c) Copyright 2007-2014 Sebastien Bourdeauducq");
|
|
printf("Revision %08x built "__DATE__" "__TIME__"\n\n", MSC_GIT_ID);
|
|
crcbios();
|
|
id_print();
|
|
#ifdef CSR_ETHMAC_BASE
|
|
eth_init();
|
|
#endif
|
|
#ifdef CSR_SDRAM_BASE
|
|
sdr_ok = sdrinit();
|
|
#else
|
|
sdr_ok = 1;
|
|
#endif
|
|
if(sdr_ok)
|
|
boot_sequence();
|
|
else
|
|
printf("Memory initialization failed\n");
|
|
|
|
while(1) {
|
|
putsnonl("\e[1mBIOS>\e[0m ");
|
|
readstr(buffer, 64);
|
|
do_command(buffer);
|
|
}
|
|
return 0;
|
|
}
|