*/
int do_sdram ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
+ enum {unknown, EDO, SDRAM, DDR2} type;
u_char chip;
u_char data[128];
u_char cksum;
printf("Serial memory size 0x%02X\n", 1 << data[1]);
puts ("Memory type ");
switch(data[2]) {
- case 2: puts ("EDO\n"); break;
- case 4: puts ("SDRAM\n"); break;
- case 8: puts ("DDR2\n"); break;
- default: puts ("unknown\n"); break;
+ case 2:
+ type = EDO;
+ puts ("EDO\n");
+ break;
+ case 4:
+ type = SDRAM;
+ puts ("SDRAM\n");
+ break;
+ case 8:
+ type = DDR2;
+ puts ("DDR2\n");
+ break;
+ default:
+ type = unknown;
+ puts ("unknown\n");
+ break;
}
puts ("Row address bits ");
if ((data[3] & 0x00F0) == 0)
printf("%d\n", data[4] & 0x0F);
else
printf("%d/%d\n", data[4] & 0x0F, (data[4] >> 4) & 0x0F);
- printf("Module rows %d\n", data[5]);
- printf("Module data width %d bits\n", (data[7] << 8) | data[6]);
+
+ switch (type) {
+ case DDR2:
+ printf("Number of ranks %d\n",
+ (data[5] & 0x07) + 1);
+ break;
+ default:
+ printf("Module rows %d\n", data[5]);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("Module data width %d bits\n", data[6]);
+ break;
+ default:
+ printf("Module data width %d bits\n",
+ (data[7] << 8) | data[6]);
+ break;
+ }
+
puts ("Interface signal levels ");
switch(data[8]) {
- case 0: puts ("5.0v/TTL\n"); break;
+ case 0: puts ("TTL 5.0 V\n"); break;
case 1: puts ("LVTTL\n"); break;
- case 2: puts ("HSTL 1.5\n"); break;
- case 3: puts ("SSTL 3.3\n"); break;
- case 4: puts ("SSTL 2.5\n"); break;
- case 5: puts ("SSTL 1.8\n"); break;
+ case 2: puts ("HSTL 1.5 V\n"); break;
+ case 3: puts ("SSTL 3.3 V\n"); break;
+ case 4: puts ("SSTL 2.5 V\n"); break;
+ case 5: puts ("SSTL 1.8 V\n"); break;
default: puts ("unknown\n"); break;
}
- printf("SDRAM cycle time %d.%d nS\n",
- (data[9] >> 4) & 0x0F, data[9] & 0x0F);
- printf("SDRAM access time %d.%d nS\n",
- (data[10] >> 4) & 0x0F, data[10] & 0x0F);
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM cycle time %d.",
+ (data[9] >> 4) & 0x0F);
+ switch (data[9] & 0x0F) {
+ case 0x0:
+ case 0x1:
+ case 0x2:
+ case 0x3:
+ case 0x4:
+ case 0x5:
+ case 0x6:
+ case 0x7:
+ case 0x8:
+ case 0x9:
+ printf("%d ns\n", data[9] & 0x0F);
+ break;
+ case 0xA:
+ puts("25 ns\n");
+ break;
+ case 0xB:
+ puts("33 ns\n");
+ break;
+ case 0xC:
+ puts("66 ns\n");
+ break;
+ case 0xD:
+ puts("75 ns\n");
+ break;
+ default:
+ puts("?? ns\n");
+ break;
+ }
+ break;
+ default:
+ printf("SDRAM cycle time %d.%d nS\n",
+ (data[9] >> 4) & 0x0F, data[9] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM access time 0.%d%d ns\n",
+ (data[10] >> 4) & 0x0F, data[10] & 0x0F);
+ break;
+ default:
+ printf("SDRAM access time %d.%d nS\n",
+ (data[10] >> 4) & 0x0F, data[10] & 0x0F);
+ break;
+ }
+
puts ("EDC configuration ");
switch(data[11]) {
case 0: puts ("None\n"); break;
else
puts ("Self refresh, rate ");
switch(data[12] & 0x7F) {
- case 0: puts ("15.625uS\n"); break;
- case 1: puts ("3.9uS\n"); break;
- case 2: puts ("7.8uS\n"); break;
- case 3: puts ("31.3uS\n"); break;
- case 4: puts ("62.5uS\n"); break;
- case 5: puts ("125uS\n"); break;
+ case 0: puts ("15.625 uS\n"); break;
+ case 1: puts ("3.9 uS\n"); break;
+ case 2: puts ("7.8 uS \n"); break;
+ case 3: puts ("31.3 uS\n"); break;
+ case 4: puts ("62.5 uS\n"); break;
+ case 5: puts ("125 uS\n"); break;
default: puts ("unknown\n"); break;
}
- printf("SDRAM width (primary) %d\n", data[13] & 0x7F);
- if ((data[13] & 0x80) != 0) {
- printf(" (second bank) %d\n",
- 2 * (data[13] & 0x7F));
- }
- if (data[14] != 0) {
- printf("EDC width %d\n",
- data[14] & 0x7F);
- if ((data[14] & 0x80) != 0)
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM width (primary) %d\n", data[13]);
+ break;
+ default:
+ printf("SDRAM width (primary) %d\n", data[13] & 0x7F);
+ if ((data[13] & 0x80) != 0) {
printf(" (second bank) %d\n",
- 2 * (data[14] & 0x7F));
+ 2 * (data[13] & 0x7F));
+ }
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ if (data[14] != 0)
+ printf("EDC width %d\n", data[14]);
+ break;
+ default:
+ if (data[14] != 0) {
+ printf("EDC width %d\n",
+ data[14] & 0x7F);
+
+ if ((data[14] & 0x80) != 0) {
+ printf(" (second bank) %d\n",
+ 2 * (data[14] & 0x7F));
+ }
+ }
+ break;
}
- printf("Min clock delay, back-to-back random column addresses %d\n",
- data[15]);
+
+ if (DDR2 != type ) {
+ printf("Min clock delay, back-to-back random column addresses "
+ "%d\n", data[15]);
+ }
+
puts ("Burst length(s) ");
if (data[16] & 0x80) puts (" Page");
if (data[16] & 0x08) puts (" 8");
if (data[16] & 0x01) puts (" 1");
putc ('\n');
printf("Number of banks %d\n", data[17]);
- puts ("CAS latency(s) ");
- if (data[18] & 0x80) puts (" TBD");
- if (data[18] & 0x40) puts (" 7");
- if (data[18] & 0x20) puts (" 6");
- if (data[18] & 0x10) puts (" 5");
- if (data[18] & 0x08) puts (" 4");
- if (data[18] & 0x04) puts (" 3");
- if (data[18] & 0x02) puts (" 2");
- if (data[18] & 0x01) puts (" 1");
- putc ('\n');
- puts ("CS latency(s) ");
- if (data[19] & 0x80) puts (" TBD");
- if (data[19] & 0x40) puts (" 6");
- if (data[19] & 0x20) puts (" 5");
- if (data[19] & 0x10) puts (" 4");
- if (data[19] & 0x08) puts (" 3");
- if (data[19] & 0x04) puts (" 2");
- if (data[19] & 0x02) puts (" 1");
- if (data[19] & 0x01) puts (" 0");
- putc ('\n');
- puts ("WE latency(s) ");
- if (data[20] & 0x80) puts (" TBD");
- if (data[20] & 0x40) puts (" 6");
- if (data[20] & 0x20) puts (" 5");
- if (data[20] & 0x10) puts (" 4");
- if (data[20] & 0x08) puts (" 3");
- if (data[20] & 0x04) puts (" 2");
- if (data[20] & 0x02) puts (" 1");
- if (data[20] & 0x01) puts (" 0");
- putc ('\n');
- puts ("Module attributes:\n");
- if (!data[21]) puts (" (none)\n");
- if (data[21] & 0x80) puts (" TBD (bit 7)\n");
- if (data[21] & 0x40) puts (" Redundant row address\n");
- if (data[21] & 0x20) puts (" Differential clock input\n");
- if (data[21] & 0x10) puts (" Registerd DQMB inputs\n");
- if (data[21] & 0x08) puts (" Buffered DQMB inputs\n");
- if (data[21] & 0x04) puts (" On-card PLL\n");
- if (data[21] & 0x02) puts (" Registered address/control lines\n");
- if (data[21] & 0x01) puts (" Buffered address/control lines\n");
- puts ("Device attributes:\n");
- if (data[22] & 0x80) puts (" TBD (bit 7)\n");
- if (data[22] & 0x40) puts (" TBD (bit 6)\n");
- if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n");
- else puts (" Upper Vcc tolerance 10%\n");
- if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n");
- else puts (" Lower Vcc tolerance 10%\n");
- if (data[22] & 0x08) puts (" Supports write1/read burst\n");
- if (data[22] & 0x04) puts (" Supports precharge all\n");
- if (data[22] & 0x02) puts (" Supports auto precharge\n");
- if (data[22] & 0x01) puts (" Supports early RAS# precharge\n");
- printf("SDRAM cycle time (2nd highest CAS latency) %d.%d nS\n",
- (data[23] >> 4) & 0x0F, data[23] & 0x0F);
- printf("SDRAM access from clock (2nd highest CAS latency) %d.%d nS\n",
- (data[24] >> 4) & 0x0F, data[24] & 0x0F);
- printf("SDRAM cycle time (3rd highest CAS latency) %d.%d nS\n",
- (data[25] >> 4) & 0x0F, data[25] & 0x0F);
- printf("SDRAM access from clock (3rd highest CAS latency) %d.%d nS\n",
- (data[26] >> 4) & 0x0F, data[26] & 0x0F);
- printf("Minimum row precharge %d nS\n", data[27]);
- printf("Row active to row active min %d nS\n", data[28]);
- printf("RAS to CAS delay min %d nS\n", data[29]);
+
+ switch (type) {
+ case DDR2:
+ puts ("CAS latency(s) ");
+ if (data[18] & 0x83) puts (" TBD");
+ if (data[18] & 0x40) puts (" 6");
+ if (data[18] & 0x20) puts (" 5");
+ if (data[18] & 0x10) puts (" 4");
+ if (data[18] & 0x08) puts (" 3");
+ if (data[18] & 0x04) puts (" 2");
+ putc ('\n');
+ break;
+ default:
+ puts ("CAS latency(s) ");
+ if (data[18] & 0x80) puts (" TBD");
+ if (data[18] & 0x40) puts (" 7");
+ if (data[18] & 0x20) puts (" 6");
+ if (data[18] & 0x10) puts (" 5");
+ if (data[18] & 0x08) puts (" 4");
+ if (data[18] & 0x04) puts (" 3");
+ if (data[18] & 0x02) puts (" 2");
+ if (data[18] & 0x01) puts (" 1");
+ putc ('\n');
+ break;
+ }
+
+ if (DDR2 != type) {
+ puts ("CS latency(s) ");
+ if (data[19] & 0x80) puts (" TBD");
+ if (data[19] & 0x40) puts (" 6");
+ if (data[19] & 0x20) puts (" 5");
+ if (data[19] & 0x10) puts (" 4");
+ if (data[19] & 0x08) puts (" 3");
+ if (data[19] & 0x04) puts (" 2");
+ if (data[19] & 0x02) puts (" 1");
+ if (data[19] & 0x01) puts (" 0");
+ putc ('\n');
+ }
+
+ if (DDR2 != type) {
+ puts ("WE latency(s) ");
+ if (data[20] & 0x80) puts (" TBD");
+ if (data[20] & 0x40) puts (" 6");
+ if (data[20] & 0x20) puts (" 5");
+ if (data[20] & 0x10) puts (" 4");
+ if (data[20] & 0x08) puts (" 3");
+ if (data[20] & 0x04) puts (" 2");
+ if (data[20] & 0x02) puts (" 1");
+ if (data[20] & 0x01) puts (" 0");
+ putc ('\n');
+ }
+
+ switch (type) {
+ case DDR2:
+ puts ("Module attributes:\n");
+ if (data[21] & 0x80)
+ puts (" TBD (bit 7)\n");
+ if (data[21] & 0x40)
+ puts (" Analysis probe installed\n");
+ if (data[21] & 0x20)
+ puts (" TBD (bit 5)\n");
+ if (data[21] & 0x10)
+ puts (" FET switch external enable\n");
+ printf(" %d PLLs on DIMM\n", (data[21] >> 2) & 0x03);
+ if (data[20] & 0x11) {
+ printf(" %d active registers on DIMM\n",
+ (data[21] & 0x03) + 1);
+ }
+ break;
+ default:
+ puts ("Module attributes:\n");
+ if (!data[21])
+ puts (" (none)\n");
+ if (data[21] & 0x80)
+ puts (" TBD (bit 7)\n");
+ if (data[21] & 0x40)
+ puts (" Redundant row address\n");
+ if (data[21] & 0x20)
+ puts (" Differential clock input\n");
+ if (data[21] & 0x10)
+ puts (" Registerd DQMB inputs\n");
+ if (data[21] & 0x08)
+ puts (" Buffered DQMB inputs\n");
+ if (data[21] & 0x04)
+ puts (" On-card PLL\n");
+ if (data[21] & 0x02)
+ puts (" Registered address/control lines\n");
+ if (data[21] & 0x01)
+ puts (" Buffered address/control lines\n");
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ if (data[22] & 0x80) puts (" TBD (bit 7)\n");
+ if (data[22] & 0x40) puts (" TBD (bit 6)\n");
+ if (data[22] & 0x20) puts (" TBD (bit 5)\n");
+ if (data[22] & 0x10) puts (" TBD (bit 4)\n");
+ if (data[22] & 0x08) puts (" TBD (bit 3)\n");
+ if (data[22] & 0x04)
+ puts (" Supports parital array self refresh\n");
+ if (data[22] & 0x02)
+ puts (" Supports 50 ohm ODT\n");
+ if (data[22] & 0x01)
+ puts (" Supports weak driver\n");
+ break;
+ default:
+ puts ("Device attributes:\n");
+ if (data[22] & 0x80) puts (" TBD (bit 7)\n");
+ if (data[22] & 0x40) puts (" TBD (bit 6)\n");
+ if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n");
+ else puts (" Upper Vcc tolerance 10%\n");
+ if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n");
+ else puts (" Lower Vcc tolerance 10%\n");
+ if (data[22] & 0x08) puts (" Supports write1/read burst\n");
+ if (data[22] & 0x04) puts (" Supports precharge all\n");
+ if (data[22] & 0x02) puts (" Supports auto precharge\n");
+ if (data[22] & 0x01) puts (" Supports early RAS# precharge\n");
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM cycle time (2nd highest CAS latency) %d.",
+ (data[23] >> 4) & 0x0F);
+
+ switch (data[23] & 0x0F) {
+ case 0x0:
+ case 0x1:
+ case 0x2:
+ case 0x3:
+ case 0x4:
+ case 0x5:
+ case 0x6:
+ case 0x7:
+ case 0x8:
+ case 0x9:
+ printf("%d ns\n", data[23] & 0x0F);
+ break;
+ case 0xA:
+ puts("25 ns\n");
+ break;
+ case 0xB:
+ puts("33 ns\n");
+ break;
+ case 0xC:
+ puts("66 ns\n");
+ break;
+ case 0xD:
+ puts("75 ns\n");
+ break;
+ default:
+ puts("?? ns\n");
+ break;
+ }
+ break;
+ default:
+ printf("SDRAM cycle time (2nd highest CAS latency) %d."
+ "%d nS\n", (data[23] >> 4) & 0x0F, data[23] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM access from clock (2nd highest CAS latency) 0."
+ "%d%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F);
+ break;
+ default:
+ printf("SDRAM access from clock (2nd highest CAS latency) %d."
+ "%d nS\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM cycle time (3rd highest CAS latency) %d.",
+ (data[25] >> 4) & 0x0F);
+
+ switch (data[25] & 0x0F) {
+ case 0x0:
+ case 0x1:
+ case 0x2:
+ case 0x3:
+ case 0x4:
+ case 0x5:
+ case 0x6:
+ case 0x7:
+ case 0x8:
+ case 0x9:
+ printf("%d ns\n", data[25] & 0x0F);
+ break;
+ case 0xA:
+ puts("25 ns\n");
+ break;
+ case 0xB:
+ puts("33 ns\n");
+ break;
+ case 0xC:
+ puts("66 ns\n");
+ break;
+ case 0xD:
+ puts("75 ns\n");
+ break;
+ default:
+ puts("?? ns\n");
+ break;
+ }
+ break;
+ default:
+ printf("SDRAM cycle time (3rd highest CAS latency) %d."
+ "%d nS\n", (data[25] >> 4) & 0x0F, data[25] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("SDRAM access from clock (3rd highest CAS latency) 0."
+ "%d%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F);
+ break;
+ default:
+ printf("SDRAM access from clock (3rd highest CAS latency) %d."
+ "%d nS\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("Minimum row precharge %d", data[27] >> 2);
+ switch (data[27] & 0x03) {
+ case 0x0: puts(".00 ns\n"); break;
+ case 0x1: puts(".25 ns\n"); break;
+ case 0x2: puts(".50 ns\n"); break;
+ case 0x3: puts(".75 ns\n"); break;
+ }
+ break;
+ default:
+ printf("Minimum row precharge %d nS\n", data[27]);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("Row active to row active min %d", data[28] >> 2);
+ switch (data[28] & 0x03) {
+ case 0x0: puts(".00 ns\n"); break;
+ case 0x1: puts(".25 ns\n"); break;
+ case 0x2: puts(".50 ns\n"); break;
+ case 0x3: puts(".75 ns\n"); break;
+ }
+ break;
+ default:
+ printf("Row active to row active min %d nS\n", data[28]);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("RAS to CAS delay min %d", data[29] >> 2);
+ switch (data[29] & 0x03) {
+ case 0x0: puts(".00 ns\n"); break;
+ case 0x1: puts(".25 ns\n"); break;
+ case 0x2: puts(".50 ns\n"); break;
+ case 0x3: puts(".75 ns\n"); break;
+ }
+ break;
+ default:
+ printf("RAS to CAS delay min %d nS\n", data[29]);
+ break;
+ }
+
printf("Minimum RAS pulse width %d nS\n", data[30]);
- puts ("Density of each row ");
- if (data[31] & 0x80) puts (" 512");
- if (data[31] & 0x40) puts (" 256");
- if (data[31] & 0x20) puts (" 128");
- if (data[31] & 0x10) puts (" 64");
- if (data[31] & 0x08) puts (" 32");
- if (data[31] & 0x04) puts (" 16");
- if (data[31] & 0x02) puts (" 8");
- if (data[31] & 0x01) puts (" 4");
- puts ("MByte\n");
- printf("Command and Address setup %c%d.%d nS\n",
- (data[32] & 0x80) ? '-' : '+',
- (data[32] >> 4) & 0x07, data[32] & 0x0F);
- printf("Command and Address hold %c%d.%d nS\n",
- (data[33] & 0x80) ? '-' : '+',
- (data[33] >> 4) & 0x07, data[33] & 0x0F);
- printf("Data signal input setup %c%d.%d nS\n",
- (data[34] & 0x80) ? '-' : '+',
- (data[34] >> 4) & 0x07, data[34] & 0x0F);
- printf("Data signal input hold %c%d.%d nS\n",
- (data[35] & 0x80) ? '-' : '+',
- (data[35] >> 4) & 0x07, data[35] & 0x0F);
+
+ switch (type) {
+ case DDR2:
+ puts ("Density of each row ");
+ if (data[31] & 0x80) puts (" 512 MiB\n");
+ if (data[31] & 0x40) puts (" 256 MiB\n");
+ if (data[31] & 0x20) puts (" 128 MiB\n");
+ if (data[31] & 0x10) puts (" 16 GiB\n");
+ if (data[31] & 0x08) puts (" 8 GiB\n");
+ if (data[31] & 0x04) puts (" 4 GiB\n");
+ if (data[31] & 0x02) puts (" 2 GiB\n");
+ if (data[31] & 0x01) puts (" 1 GiB\n");
+ break;
+ default:
+ puts ("Density of each row ");
+ if (data[31] & 0x80) puts (" 512 MiB\n");
+ if (data[31] & 0x40) puts (" 256 MiB\n");
+ if (data[31] & 0x20) puts (" 128 MiB\n");
+ if (data[31] & 0x10) puts (" 64 MiB\n");
+ if (data[31] & 0x08) puts (" 32 MiB\n");
+ if (data[31] & 0x04) puts (" 16 MiB\n");
+ if (data[31] & 0x02) puts (" 8 MiB\n");
+ if (data[31] & 0x01) puts (" 4 MiB\n");
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ puts("Command and Address setup ");
+ if (data[32] >= 0xA0) {
+ printf("1.%d%d ns\n",
+ ((data[32] >> 4) & 0x0F) - 10, data[32] & 0x0F);
+ } else {
+ printf("0.%d%d ns\n",
+ ((data[32] >> 4) & 0x0F), data[32] & 0x0F);
+ }
+ break;
+ default:
+ printf("Command and Address setup %c%d.%d nS\n",
+ (data[32] & 0x80) ? '-' : '+',
+ (data[32] >> 4) & 0x07, data[32] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ puts("Command and Address hold ");
+ if (data[33] >= 0xA0) {
+ printf("1.%d%d ns\n",
+ ((data[33] >> 4) & 0x0F) - 10, data[33] & 0x0F);
+ } else {
+ printf("0.%d%d ns\n",
+ ((data[33] >> 4) & 0x0F), data[33] & 0x0F);
+ }
+ break;
+ default:
+ printf("Command and Address hold %c%d.%d nS\n",
+ (data[33] & 0x80) ? '-' : '+',
+ (data[33] >> 4) & 0x07, data[33] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("Data signal input setup 0.%d%d ns\n",
+ (data[34] >> 4) & 0x0F, data[34] & 0x0F);
+ break;
+ default:
+ printf("Data signal input setup %c%d.%d nS\n",
+ (data[34] & 0x80) ? '-' : '+',
+ (data[34] >> 4) & 0x07, data[34] & 0x0F);
+ break;
+ }
+
+ switch (type) {
+ case DDR2:
+ printf("Data signal input hold 0.%d%d ns\n",
+ (data[35] >> 4) & 0x0F, data[35] & 0x0F);
+ break;
+ default:
+ printf("Data signal input hold %c%d.%d nS\n",
+ (data[35] & 0x80) ? '-' : '+',
+ (data[35] >> 4) & 0x07, data[35] & 0x0F);
+ break;
+ }
+
puts ("Manufacturer's JEDEC ID ");
for (j = 64; j <= 71; j++)
printf("%02X ", data[j]);
for (j = 95; j <= 98; j++)
printf("%02X ", data[j]);
putc ('\n');
- printf("Speed rating PC%d\n",
- data[126] == 0x66 ? 66 : data[126]);
+ if (DDR2 != type) {
+ printf("Speed rating PC%d\n",
+ data[126] == 0x66 ? 66 : data[126]);
+ }
return 0;
}
#endif
projects / u-boot.git / commitdiff