bios: more DDR diagnostic functions
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2ccdade88e
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7ecfd60368
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@ -81,6 +81,43 @@ static void init_sequence(void)
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cdelay(200);
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}
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void ddrsw(void)
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{
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CSR_DFII_CONTROL = DFII_CONTROL_CKE;
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printf("DDR now under software control\n");
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}
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void ddrhw(void)
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{
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CSR_DFII_CONTROL = DFII_CONTROL_SEL|DFII_CONTROL_CKE;
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printf("DDR now under hardware control\n");
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}
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void ddrrow(char *_row)
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{
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char *c;
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unsigned int row;
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if(*_row == 0) {
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setaddr(0x0000);
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CSR_DFII_BA_P0 = 0;
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CSR_DFII_COMMAND_P0 = DFII_COMMAND_RAS|DFII_COMMAND_WE|DFII_COMMAND_CS;
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cdelay(15);
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printf("Precharged\n");
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} else {
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row = strtoul(_row, &c, 0);
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if(*c != 0) {
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printf("incorrect row\n");
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return;
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}
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setaddr(row);
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CSR_DFII_BA_P0 = 0;
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CSR_DFII_COMMAND_P0 = DFII_COMMAND_RAS|DFII_COMMAND_CS;
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cdelay(15);
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printf("Activated row %d\n", row);
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}
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}
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void ddrrd(char *startaddr)
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{
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char *c;
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@ -141,10 +178,5 @@ int ddrinit(void)
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init_sequence();
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setaddr(0x0000);
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CSR_DFII_BA_P0 = 0;
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CSR_DFII_COMMAND_P0 = DFII_COMMAND_RAS|DFII_COMMAND_CS;
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cdelay(15);
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return 1;
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}
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@ -19,6 +19,9 @@
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#define __DDRINIT_H
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int ddrinit(void);
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void ddrsw(void);
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void ddrhw(void);
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void ddrrow(char *_row);
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void ddrrd(char *startaddr);
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void ddrwr(char *startaddr);
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@ -353,6 +353,9 @@ static void do_command(char *c)
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else if(strcmp(token, "wcsr") == 0) wcsr(get_token(&c), get_token(&c));
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else if(strcmp(token, "ddrinit") == 0) ddrinit();
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else if(strcmp(token, "ddrrow") == 0) ddrrow(get_token(&c));
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else if(strcmp(token, "ddrsw") == 0) ddrsw();
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else if(strcmp(token, "ddrhw") == 0) ddrhw();
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else if(strcmp(token, "ddrrd") == 0) ddrrd(get_token(&c));
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else if(strcmp(token, "ddrwr") == 0) ddrwr(get_token(&c));
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