55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
#include <sys/types.h>
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#include <sys/cpu.h>
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#include <sys/sbd.h>
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#include <libsc.h>
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#include "nvram.h"
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#define RESET_PRE *cpu_auxctl &= ~NVRAM_PRE
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#define SET_PRE *cpu_auxctl |= NVRAM_PRE
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/*
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* IP26 standalone utility program to set the NVRAM protect register
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*/
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main(int argc, char **argv)
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{
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int bits_in_cmd = size_nvram();
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volatile unsigned char *cpu_auxctl = (unsigned char *)
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PHYS_TO_K1(CPU_AUX_CONTROL);
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unsigned char health_led_off =
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*cpu_auxctl & LED_GREEN;
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RESET_PRE;
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nvram_cs_on();
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nvram_cmd(SER_WEN, 0, bits_in_cmd);
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nvram_cs_off();
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SET_PRE;
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nvram_cs_on();
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nvram_cmd(SER_PREN, 0, bits_in_cmd);
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nvram_cs_off();
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nvram_cs_on();
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nvram_cmd(SER_PRCLEAR, 0xff, bits_in_cmd);
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nvram_cs_off();
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nvram_hold();
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nvram_cs_on();
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nvram_cmd(SER_PREN, 0, bits_in_cmd);
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nvram_cs_off();
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nvram_cs_on();
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nvram_cmd(SER_PRWRITE, NVFUSE_START / 2, bits_in_cmd);
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nvram_cs_off();
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nvram_hold();
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RESET_PRE;
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nvram_cs_on();
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nvram_cmd(SER_WDS, 0, bits_in_cmd);
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nvram_cs_off();
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*cpu_auxctl = (*cpu_auxctl & ~LED_GREEN) | health_led_off;
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EnterInteractiveMode(); /* Go back to prom monitor mode */
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return (0);
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}
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