soc/software/bios/sdram: add optional memtest debug traces
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@ -436,10 +436,13 @@ static unsigned short seed_to_data_16(unsigned short seed, int random)
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#define MEMTEST_BUS_SIZE (512)
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#endif
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//#define MEMTEST_BUS_DEBUG
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static int memtest_bus(void)
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{
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volatile unsigned int *array = (unsigned int *)MAIN_RAM_BASE;
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int i, errors;
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unsigned int rdata;
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errors = 0;
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@ -449,8 +452,13 @@ static int memtest_bus(void)
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flush_cpu_dcache();
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flush_l2_cache();
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for(i=0;i<MEMTEST_BUS_SIZE/4;i++) {
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if(array[i] != ONEZERO)
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rdata = array[i];
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if(rdata != ONEZERO) {
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errors++;
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#ifdef MEMTEST_BUS_DEBUG
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printf("[bus: %0x]: %08x vs %08x\n", i, rdata, ONEZERO);
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#endif
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}
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}
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for(i=0;i<MEMTEST_BUS_SIZE/4;i++) {
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@ -459,8 +467,13 @@ static int memtest_bus(void)
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flush_cpu_dcache();
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flush_l2_cache();
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for(i=0;i<MEMTEST_BUS_SIZE/4;i++) {
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if(array[i] != ZEROONE)
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rdata = array[i];
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if(rdata != ZEROONE) {
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errors++;
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#ifdef MEMTEST_BUS_DEBUG
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printf("[bus %0x]: %08x vs %08x\n", i, rdata, ZEROONE);
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#endif
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}
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}
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return errors;
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@ -471,11 +484,14 @@ static int memtest_bus(void)
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#endif
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#define MEMTEST_DATA_RANDOM 1
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//#define MEMTEST_DATA_DEBUG
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static int memtest_data(void)
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{
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volatile unsigned int *array = (unsigned int *)MAIN_RAM_BASE;
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int i, errors;
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unsigned int seed_32;
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unsigned int rdata;
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errors = 0;
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seed_32 = 0;
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@ -490,8 +506,13 @@ static int memtest_data(void)
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flush_l2_cache();
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for(i=0;i<MEMTEST_DATA_SIZE/4;i++) {
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seed_32 = seed_to_data_32(seed_32, MEMTEST_DATA_RANDOM);
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if(array[i] != seed_32)
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rdata = array[i];
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if(rdata != seed_32) {
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errors++;
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#ifdef MEMTEST_DATA_DEBUG
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printf("[data %0x]: %08x vs %08x\n", i, rdata, seed_32);
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#endif
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}
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}
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return errors;
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@ -501,11 +522,14 @@ static int memtest_data(void)
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#endif
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#define MEMTEST_ADDR_RANDOM 0
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//#define MEMTEST_ADDR_DEBUG
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static int memtest_addr(void)
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{
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volatile unsigned int *array = (unsigned int *)MAIN_RAM_BASE;
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int i, errors;
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unsigned short seed_16;
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unsigned short rdata;
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errors = 0;
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seed_16 = 0;
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@ -520,8 +544,13 @@ static int memtest_addr(void)
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flush_l2_cache();
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for(i=0;i<MEMTEST_ADDR_SIZE/4;i++) {
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seed_16 = seed_to_data_16(seed_16, MEMTEST_ADDR_RANDOM);
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if(array[(unsigned int) seed_16] != i)
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rdata = array[(unsigned int) seed_16];
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if(rdata != i) {
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errors++;
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#ifdef MEMTEST_ADDR_DEBUG
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printf("[addr %0x]: %08x vs %08x\n", i, rdata, i);
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#endif
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}
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}
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return errors;
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