26 Sep
2008
26 Sep
'08
10:05 p.m.
Patch attached Marc
--
Marc Jones
Senior Firmware Engineer
(970) 226-9684 Office
mailto:Marc.Jones@amd.com
http://www.amd.com/embeddedprocessors
This patch for the AMD K8 allows a single DIMM to be populated in the
ChannelB slot. Previously a DIMM could only be populated in ChannelB
if there was a DIMM already in ChannelA. This patch doesn't allow unmatched
DIMMs to be populate in ChannelA and ChannelB. In an A & B configuration
the DIMM must still be matched.
Signed-off-by: Marc Jones marc.jones@amd.com
Index: coreboot-v2/src/northbridge/amd/amdk8/amdk8_f.h
===================================================================
--- coreboot-v2.orig/src/northbridge/amd/amdk8/amdk8_f.h 2008-09-26 13:30:56.000000000 -0600
+++ coreboot-v2/src/northbridge/amd/amdk8/amdk8_f.h 2008-09-26 13:36:22.000000000 -0600
@@ -481,8 +481,9 @@
uint8_t is_registered;
uint8_t is_ecc;
uint8_t is_Width128;
+ uint8_t is_64MuxMode;
uint8_t memclk_set; // we need to use this to retrieve the mem param
- uint8_t rsv[3];
+ uint8_t rsv[2];
} __attribute__((packed));
struct link_pair_st {
Index: coreboot-v2/src/northbridge/amd/amdk8/raminit_f.c
===================================================================
--- coreboot-v2.orig/src/northbridge/amd/amdk8/raminit_f.c 2008-09-26 13:30:56.000000000 -0600
+++ coreboot-v2/src/northbridge/amd/amdk8/raminit_f.c 2008-09-26 13:56:53.000000000 -0600
@@ -849,7 +849,7 @@
static void set_dimm_size(const struct mem_controller *ctrl,
- struct dimm_size *sz, unsigned index, int is_Width128)
+ struct dimm_size *sz, unsigned index, struct mem_info *meminfo)
{
uint32_t base0, base1;
@@ -872,7 +872,7 @@
}
/* Double the size if we are using dual channel memory */
- if (is_Width128) {
+ if (meminfo->is_Width128) {
base0 = (base0 << 1) | (base0 & 1);
base1 = (base1 << 1) | (base1 & 1);
}
@@ -881,15 +881,20 @@
base0 &= ~0xe007fffe;
base1 &= ~0xe007fffe;
- /* Set the appropriate DIMM base address register */
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+0)<<2), base0);
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+1)<<2), base1);
+ if (!(meminfo->dimm_mask & 0x0F) && (meminfo->dimm_mask & 0xF0)) { /* channelB only? */
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 4) << 2), base0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 5) << 2), base1);
+ } else {
+ /* Set the appropriate DIMM base address register */
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 0) << 2), base0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 1) << 2), base1);
#if QRANK_DIMM_SUPPORT == 1
- if (sz->rank == 4) {
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+4)<<2), base0);
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+5)<<2), base1);
- }
+ if (sz->rank == 4) {
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 4) << 2), base0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 5) << 2), base1);
+ }
#endif
+ }
/* Enable the memory clocks for this DIMM by Clear the MemClkDis bit*/
if (base0) {
@@ -903,24 +908,31 @@
ClkDis0 = DTL_MemClkDis0_S1g1;
#endif
- dword = pci_read_config32(ctrl->f2, DRAM_TIMING_LOW); //Channel A
- dword &= ~(ClkDis0 >> index);
-#if QRANK_DIMM_SUPPORT == 1
- if (sz->rank == 4) {
- dword &= ~(ClkDis0 >> (index+2));
- }
-#endif
- pci_write_config32(ctrl->f2, DRAM_TIMING_LOW, dword);
-
- if (is_Width128) { //Channel B
+ if (!(meminfo->dimm_mask & 0x0F) && (meminfo->dimm_mask & 0xF0)) { /* channelB only? */
dword = pci_read_config32(ctrl->f2, DRAM_CTRL_MISC);
dword &= ~(ClkDis0 >> index);
+ pci_write_config32(ctrl->f2, DRAM_CTRL_MISC, dword);
+
+ } else {
+ dword = pci_read_config32(ctrl->f2, DRAM_TIMING_LOW); //Channel A
+ dword &= ~(ClkDis0 >> index);
#if QRANK_DIMM_SUPPORT == 1
if (sz->rank == 4) {
dword &= ~(ClkDis0 >> (index+2));
}
#endif
- pci_write_config32(ctrl->f2, DRAM_CTRL_MISC, dword);
+ pci_write_config32(ctrl->f2, DRAM_TIMING_LOW, dword);
+
+ if (meminfo->is_Width128) { // ChannelA+B
+ dword = pci_read_config32(ctrl->f2, DRAM_CTRL_MISC);
+ dword &= ~(ClkDis0 >> index);
+#if QRANK_DIMM_SUPPORT == 1
+ if (sz->rank == 4) {
+ dword &= ~(ClkDis0 >> (index+2));
+ }
+#endif
+ pci_write_config32(ctrl->f2, DRAM_CTRL_MISC, dword);
+ }
}
}
@@ -943,7 +955,8 @@
static void set_dimm_cs_map(const struct mem_controller *ctrl,
- struct dimm_size *sz, unsigned index)
+ struct dimm_size *sz, unsigned index,
+ struct mem_info *meminfo)
{
static const uint8_t cs_map_aaa[24] = {
/* (bank=2, row=13, col=9)(3, 16, 11) ---> (0, 0, 0) (1, 3, 2) */
@@ -961,6 +974,9 @@
uint32_t map;
+ if (!(meminfo->dimm_mask & 0x0F) && (meminfo->dimm_mask & 0xF0)) { /* channelB only? */
+ index += 2;
+ }
map = pci_read_config32(ctrl->f2, DRAM_BANK_ADDR_MAP);
map &= ~(0xf << (index * 4));
#if QRANK_DIMM_SUPPORT == 1
@@ -986,24 +1002,31 @@
}
-static long spd_set_ram_size(const struct mem_controller *ctrl, long dimm_mask,
+static long spd_set_ram_size(const struct mem_controller *ctrl,
struct mem_info *meminfo)
{
int i;
for (i = 0; i < DIMM_SOCKETS; i++) {
struct dimm_size *sz = &(meminfo->sz[i]);
- if (!(dimm_mask & (1 << i))) {
- continue;
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(meminfo->dimm_mask & (1 << i))) {
+ if (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ } else {
+ continue;
+ }
}
- spd_get_dimm_size(ctrl->channel0[i], sz);
+
+ spd_get_dimm_size(spd_device, sz);
if (sz->per_rank == 0) {
return -1; /* Report SPD error */
}
- set_dimm_size(ctrl, sz, i, meminfo->is_Width128);
- set_dimm_cs_map (ctrl, sz, i);
+ set_dimm_size(ctrl, sz, i, meminfo);
+ set_dimm_cs_map (ctrl, sz, i, meminfo);
}
- return dimm_mask;
+ return meminfo->dimm_mask;
}
@@ -1243,9 +1266,9 @@
/* Write the new base register */
pci_write_config32(ctrl->f2, DRAM_CSBASE + (canidate << 2), csbase);
/* Write the new mask register */
- if ((canidate & 1) == 0) { //only have 4 CSMASK
- pci_write_config32(ctrl->f2, DRAM_CSMASK + ((canidate>>1) << 2), csmask);
- }
+ if ((canidate & 1) == 0) { //only have 4 CSMASK
+ pci_write_config32(ctrl->f2, DRAM_CSMASK + ((canidate >> 1) << 2), csmask);
+ }
}
/* Return the memory size in K */
@@ -1299,27 +1322,32 @@
static long disable_dimm(const struct mem_controller *ctrl, unsigned index,
- long dimm_mask, struct mem_info *meminfo)
+ struct mem_info *meminfo)
{
print_debug("disabling dimm");
print_debug_hex8(index);
print_debug("\r\n");
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+0)<<2), 0);
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+1)<<2), 0);
+ if (!(meminfo->dimm_mask & 0x0F) && (meminfo->dimm_mask & 0xF0)) { /* channelB only? */
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 4) << 2), 0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 5) << 2), 0);
+ } else {
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 0) << 2), 0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 1) << 2), 0);
#if QRANK_DIMM_SUPPORT == 1
- if (meminfo->sz[index].rank == 4) {
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+4)<<2), 0);
- pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1)+5)<<2), 0);
- }
+ if (meminfo->sz[index].rank == 4) {
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 4) << 2), 0);
+ pci_write_config32(ctrl->f2, DRAM_CSBASE + (((index << 1) + 5) << 2), 0);
+ }
#endif
+ }
- dimm_mask &= ~(1 << index);
- return dimm_mask;
+ meminfo->dimm_mask &= ~(1 << index);
+ return meminfo->dimm_mask;
}
static long spd_handle_unbuffered_dimms(const struct mem_controller *ctrl,
- long dimm_mask, struct mem_info *meminfo)
+ struct mem_info *meminfo)
{
int i;
uint32_t registered;
@@ -1327,29 +1355,31 @@
registered = 0;
for (i = 0; (i < DIMM_SOCKETS); i++) {
int value;
- if (!(dimm_mask & (1 << i))) {
- continue;
+ u32 spd_device = ctrl->channel0[i];
+ if (!(meminfo->dimm_mask & (1 << i))) {
+ if (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ } else {
+ continue;
+ }
}
-
- value = spd_read_byte(ctrl->channel0[i], SPD_DIMM_TYPE);
+ value = spd_read_byte(spd_device, SPD_DIMM_TYPE);
if (value < 0) {
return -1;
}
/* Registered dimm ? */
value &= 0x3f;
- if ((value == SPD_DIMM_TYPE_RDIMM) ||
- (value == SPD_DIMM_TYPE_mRDIMM)) {
- /* check SPD_MOD_ATTRIB to verify it is
- SPD_MOD_ATTRIB_REGADC (0x11)? */
+ if ((value == SPD_DIMM_TYPE_RDIMM) || (value == SPD_DIMM_TYPE_mRDIMM)) {
+ //check SPD_MOD_ATTRIB to verify it is SPD_MOD_ATTRIB_REGADC (0x11)?
registered |= (1<<i);
}
}
if (is_opteron(ctrl)) {
#if 0
- if ( registered != (dimm_mask & ((1<<DIMM_SOCKETS)-1)) ) {
- dimm_mask &= (registered | (registered << DIMM_SOCKETS) ); //disable unbuffed dimm
+ if ( registered != (meminfo->dimm_mask & ((1<<DIMM_SOCKETS)-1)) ) {
+ meminfo->dimm_mask &= (registered | (registered << DIMM_SOCKETS) ); //disable unbuffed dimm
// die("Mixed buffered and registered dimms not supported");
}
//By yhlu for debug M2, s1g1 can do dual channel, but it use unbuffer DIMM
@@ -1376,7 +1406,7 @@
print_debug("Unbuffered\r\n");
}
#endif
- return dimm_mask;
+ return meminfo->dimm_mask;
}
@@ -1406,8 +1436,7 @@
return dimm_mask;
}
-
-static long spd_enable_2channels(const struct mem_controller *ctrl, long dimm_mask, struct mem_info *meminfo)
+static long spd_enable_2channels(const struct mem_controller *ctrl, struct mem_info *meminfo)
{
int i;
uint32_t nbcap;
@@ -1438,13 +1467,21 @@
41, /* *Minimum Active to Active/Auto Refresh Time(Trc) */
42, /* *Minimum Auto Refresh Command Time(Trfc) */
};
+ u32 dcl, dcm;
+
+/* S1G1 and AM2 sockets are Mod64BitMux capable. */
+#if CPU_SOCKET_TYPE == 0x11 || CPU_SOCKET_TYPE == 0x12
+ u8 mux_cap = 1;
+#else
+ u8 mux_cap = 0;
+#endif
+
/* If the dimms are not in pairs do not do dual channels */
- if ((dimm_mask & ((1 << DIMM_SOCKETS) - 1)) !=
- ((dimm_mask >> DIMM_SOCKETS) & ((1 << DIMM_SOCKETS) - 1))) {
+ if ((meminfo->dimm_mask & ((1 << DIMM_SOCKETS) - 1)) !=
+ ((meminfo->dimm_mask >> DIMM_SOCKETS) & ((1 << DIMM_SOCKETS) - 1))) {
goto single_channel;
}
- /* If the cpu is not capable of doing dual channels
- don't do dual channels */
+ /* If the cpu is not capable of doing dual channels don't do dual channels */
nbcap = pci_read_config32(ctrl->f3, NORTHBRIDGE_CAP);
if (!(nbcap & NBCAP_128Bit)) {
goto single_channel;
@@ -1454,7 +1491,7 @@
int value0, value1;
int j;
/* If I don't have a dimm skip this one */
- if (!(dimm_mask & (1 << i))) {
+ if (!(meminfo->dimm_mask & (1 << i))) {
continue;
}
device0 = ctrl->channel0[i];
@@ -1476,18 +1513,42 @@
}
}
print_spew("Enabling dual channel memory\r\n");
- uint32_t dcl;
dcl = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW);
dcl &= ~DCL_BurstLength32; /* 32byte mode may be preferred in platforms that include graphics controllers that generate a lot of 32-bytes system memory accesses
32byte mode is not supported when the DRAM interface is 128 bits wides, even 32byte mode is set, system still use 64 byte mode */
dcl |= DCL_Width128;
pci_write_config32(ctrl->f2, DRAM_CONFIG_LOW, dcl);
meminfo->is_Width128 = 1;
- return dimm_mask;
+ return meminfo->dimm_mask;
+
single_channel:
- dimm_mask &= ~((1 << (DIMM_SOCKETS *2)) - (1 << DIMM_SOCKETS));
meminfo->is_Width128 = 0;
- return dimm_mask;
+ meminfo->is_64MuxMode = 0;
+
+ /* single dimm */
+ if ((meminfo->dimm_mask & ((1 << DIMM_SOCKETS) - 1)) !=
+ ((meminfo->dimm_mask >> DIMM_SOCKETS) & ((1 << DIMM_SOCKETS) - 1))) {
+ if (((meminfo->dimm_mask >> DIMM_SOCKETS) & ((1 << DIMM_SOCKETS) - 1))) {
+ /* mux capable and single dimm in channelB */
+ if (mux_cap) {
+ printk_spew("Enable 64MuxMode & BurstLength32\n");
+ dcm = pci_read_config32(ctrl->f2, DRAM_CTRL_MISC);
+ dcm |= DCM_Mode64BitMux;
+ pci_write_config32(ctrl->f2, DRAM_CTRL_MISC, dcm);
+ dcl = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW);
+ //dcl |= DCL_BurstLength32; /* 32byte mode for channelB only */
+ pci_write_config32(ctrl->f2, DRAM_CONFIG_LOW, dcl);
+ meminfo->is_64MuxMode = 1;
+ } else {
+ meminfo->dimm_mask &= ~((1 << (DIMM_SOCKETS * 2)) - (1 << DIMM_SOCKETS));
+ }
+ }
+ } else { /* unmatched dual dimms ? */
+ /* unmatched dual dimms not supported by meminit code. Use single channelA dimm. */
+ meminfo->dimm_mask &= ~((1 << (DIMM_SOCKETS * 2)) - (1 << DIMM_SOCKETS));
+ printk_spew("Unmatched dual dimms. Use single channelA dimm.\n");
+ }
+ return meminfo->dimm_mask;
}
struct mem_param {
@@ -1633,7 +1694,7 @@
return value;
}
-static struct spd_set_memclk_result spd_set_memclk(const struct mem_controller *ctrl, long dimm_mask, struct mem_info *meminfo)
+static struct spd_set_memclk_result spd_set_memclk(const struct mem_controller *ctrl, struct mem_info *meminfo)
{
/* Compute the minimum cycle time for these dimms */
struct spd_set_memclk_result result;
@@ -1670,9 +1731,15 @@
int index;
int latencies;
int latency;
+ u32 spd_device = ctrl->channel0[i];
- if (!(dimm_mask & (1 << i))) {
- continue;
+ print_tx("1.1 dimm_mask:", meminfo->dimm_mask);
+ if (!(meminfo->dimm_mask & (1 << i))) {
+ if (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ } else {
+ continue;
+ }
}
/* First find the supported CAS latencies
@@ -1685,7 +1752,7 @@
new_cycle_time = 0x500;
new_latency = 6;
- latencies = spd_read_byte(ctrl->channel0[i], SPD_CAS_LAT);
+ latencies = spd_read_byte(spd_device, SPD_CAS_LAT);
if (latencies <= 0) continue;
print_tx("i:",i);
@@ -1700,7 +1767,7 @@
(!(latencies & (1 << latency)))) {
continue;
}
- value = spd_read_byte(ctrl->channel0[i], latency_indicies[index]);
+ value = spd_read_byte(spd_device, latency_indicies[index]);
if (value < 0) {
goto hw_error;
}
@@ -1753,16 +1820,22 @@
print_tx("3 min_cycle_time:", min_cycle_time);
print_tx("3 min_latency:", min_latency);
- for (i = 0; (i < DIMM_SOCKETS) && (ctrl->channel0[i]); i++) {
+ for (i = 0; (i < DIMM_SOCKETS); i++) {
int latencies;
int latency;
int index;
int value;
- if (!(dimm_mask & (1 << i))) {
- continue;
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(meminfo->dimm_mask & (1 << i))) {
+ if (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ } else {
+ continue;
+ }
}
- latencies = spd_read_byte(ctrl->channel0[i], SPD_CAS_LAT);
+ latencies = spd_read_byte(spd_device, SPD_CAS_LAT);
if (latencies < 0) goto hw_error;
if (latencies == 0) {
continue;
@@ -1785,7 +1858,7 @@
}
/* Read the min_cycle_time for this latency */
- value = spd_read_byte(ctrl->channel0[i], latency_indicies[index]);
+ value = spd_read_byte(spd_device, latency_indicies[index]);
if (value < 0) goto hw_error;
value = convert_to_linear(value);
@@ -1797,7 +1870,7 @@
}
/* Otherwise I have an error, disable the dimm */
dimm_err:
- dimm_mask = disable_dimm(ctrl, i, dimm_mask, meminfo);
+ meminfo->dimm_mask = disable_dimm(ctrl, i, meminfo);
}
print_tx("4 min_cycle_time:", min_cycle_time);
@@ -1820,7 +1893,7 @@
value |= (min_latency - DTL_TCL_BASE) << DTL_TCL_SHIFT;
pci_write_config32(ctrl->f2, DRAM_TIMING_LOW, value);
- result.dimm_mask = dimm_mask;
+ result.dimm_mask = meminfo->dimm_mask;
return result;
hw_error:
result.param = (const struct mem_param *)0;
@@ -1837,18 +1910,26 @@
valuex = fraction [value & 0x7];
return valuex;
}
-static int update_dimm_Trc(const struct mem_controller *ctrl, const struct mem_param *param, int i)
+static int update_dimm_Trc(const struct mem_controller *ctrl,
+ const struct mem_param *param,
+ int i, long dimm_mask)
{
unsigned clocks, old_clocks;
uint32_t dtl;
int value;
int value2;
- value = spd_read_byte(ctrl->channel0[i], SPD_TRC);
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(dimm_mask & (1 << i)) && (dimm_mask & (1 << (DIMM_SOCKETS + i)))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ }
+
+ value = spd_read_byte(spd_device, SPD_TRC);
if (value < 0) return -1;
- value2 = spd_read_byte(ctrl->channel0[i], SPD_TRC -1);
- value <<= 2;
- value += convert_to_1_4(value2>>4);
+ value2 = spd_read_byte(spd_device, SPD_TRC -1);
+ value <<= 2;
+ value += convert_to_1_4(value2>>4);
value *=10;
@@ -1878,9 +1959,16 @@
unsigned clocks, old_clocks;
uint32_t dth;
int value;
+ u8 ch_b = 0;
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(meminfo->dimm_mask & (1 << i)) && (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i)))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ ch_b = 2; /* offset to channelB trfc setting */
+ }
//get the cs_size --> logic dimm size
- value = spd_read_byte(ctrl->channel0[i], SPD_PRI_WIDTH);
+ value = spd_read_byte(spd_device, SPD_PRI_WIDTH);
if (value < 0) {
return -1;
}
@@ -1891,24 +1979,31 @@
dth = pci_read_config32(ctrl->f2, DRAM_TIMING_HIGH);
- old_clocks = ((dth >> (DTH_TRFC0_SHIFT+i*3)) & DTH_TRFC_MASK);
+ old_clocks = ((dth >> (DTH_TRFC0_SHIFT + ((i + ch_b) * 3))) & DTH_TRFC_MASK);
+
if (old_clocks >= clocks) { // some one did it?
return 1;
}
- dth &= ~(DTH_TRFC_MASK << (DTH_TRFC0_SHIFT+i*3));
- dth |= clocks << (DTH_TRFC0_SHIFT+i*3);
+ dth &= ~(DTH_TRFC_MASK << (DTH_TRFC0_SHIFT + ((i + ch_b) * 3)));
+ dth |= clocks << (DTH_TRFC0_SHIFT + ((i + ch_b) * 3));
pci_write_config32(ctrl->f2, DRAM_TIMING_HIGH, dth);
return 1;
}
-static int update_dimm_TT_1_4(const struct mem_controller *ctrl, const struct mem_param *param, int i,
+static int update_dimm_TT_1_4(const struct mem_controller *ctrl, const struct mem_param *param, int i, long dimm_mask,
unsigned TT_REG,
unsigned SPD_TT, unsigned TT_SHIFT, unsigned TT_MASK, unsigned TT_BASE, unsigned TT_MIN, unsigned TT_MAX )
{
unsigned clocks, old_clocks;
uint32_t dtl;
int value;
- value = spd_read_byte(ctrl->channel0[i], SPD_TT); //already in 1/4 ns
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(dimm_mask & (1 << i)) && (dimm_mask & (1 << (DIMM_SOCKETS + i)))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ }
+
+ value = spd_read_byte(spd_device, SPD_TT); //already in 1/4 ns
if (value < 0) return -1;
value *=10;
clocks = (value + param->divisor -1)/param->divisor;
@@ -1917,14 +2012,14 @@
}
if (clocks > TT_MAX) {
- return 0;
+ return 0;
}
dtl = pci_read_config32(ctrl->f2, TT_REG);
old_clocks = ((dtl >> TT_SHIFT) & TT_MASK) + TT_BASE;
if (old_clocks >= clocks) { //some one did it?
-// clocks = old_clocks;
+// clocks = old_clocks;
return 1;
}
dtl &= ~(TT_MASK << TT_SHIFT);
@@ -1935,24 +2030,28 @@
static int update_dimm_Trcd(const struct mem_controller *ctrl,
- const struct mem_param *param, int i)
+ const struct mem_param *param, int i, long dimm_mask)
{
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_LOW, SPD_TRCD, DTL_TRCD_SHIFT, DTL_TRCD_MASK, DTL_TRCD_BASE, DTL_TRCD_MIN, DTL_TRCD_MAX);
+ return update_dimm_TT_1_4(ctrl, param, i, dimm_mask, DRAM_TIMING_LOW, SPD_TRCD, DTL_TRCD_SHIFT, DTL_TRCD_MASK, DTL_TRCD_BASE, DTL_TRCD_MIN, DTL_TRCD_MAX);
}
-
-static int update_dimm_Trrd(const struct mem_controller *ctrl, const struct mem_param *param, int i)
+static int update_dimm_Trrd(const struct mem_controller *ctrl, const struct mem_param *param, int i, long dimm_mask)
{
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_LOW, SPD_TRRD, DTL_TRRD_SHIFT, DTL_TRRD_MASK, DTL_TRRD_BASE, DTL_TRRD_MIN, DTL_TRRD_MAX);
+ return update_dimm_TT_1_4(ctrl, param, i, dimm_mask, DRAM_TIMING_LOW, SPD_TRRD, DTL_TRRD_SHIFT, DTL_TRRD_MASK, DTL_TRRD_BASE, DTL_TRRD_MIN, DTL_TRRD_MAX);
}
-
-static int update_dimm_Tras(const struct mem_controller *ctrl, const struct mem_param *param, int i)
+static int update_dimm_Tras(const struct mem_controller *ctrl, const struct mem_param *param, int i, long dimm_mask)
{
unsigned clocks, old_clocks;
uint32_t dtl;
int value;
- value = spd_read_byte(ctrl->channel0[i], SPD_TRAS); //in 1 ns
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(dimm_mask & (1 << i)) && (dimm_mask & (1 << (DIMM_SOCKETS + i)))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ }
+
+ value = spd_read_byte(spd_device, SPD_TRAS); //in 1 ns
if (value < 0) return -1;
print_tx("update_dimm_Tras: 0 value=", value);
@@ -1985,9 +2084,9 @@
}
static int update_dimm_Trp(const struct mem_controller *ctrl,
- const struct mem_param *param, int i)
+ const struct mem_param *param, int i, long dimm_mask)
{
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_LOW, SPD_TRP, DTL_TRP_SHIFT, DTL_TRP_MASK, DTL_TRP_BASE, DTL_TRP_MIN, DTL_TRP_MAX);
+ return update_dimm_TT_1_4(ctrl, param, i, dimm_mask, DRAM_TIMING_LOW, SPD_TRP, DTL_TRP_SHIFT, DTL_TRP_MASK, DTL_TRP_BASE, DTL_TRP_MIN, DTL_TRP_MAX);
}
@@ -2001,22 +2100,28 @@
dword = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW);
if ((dword & DCL_BurstLength32)) offset = 0;
}
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_LOW, SPD_TRTP, DTL_TRTP_SHIFT, DTL_TRTP_MASK, DTL_TRTP_BASE+offset, DTL_TRTP_MIN+offset, DTL_TRTP_MAX+offset);
+ return update_dimm_TT_1_4(ctrl, param, i, meminfo->dimm_mask, DRAM_TIMING_LOW, SPD_TRTP, DTL_TRTP_SHIFT, DTL_TRTP_MASK, DTL_TRTP_BASE+offset, DTL_TRTP_MIN+offset, DTL_TRTP_MAX+offset);
}
-static int update_dimm_Twr(const struct mem_controller *ctrl, const struct mem_param *param, int i)
+static int update_dimm_Twr(const struct mem_controller *ctrl, const struct mem_param *param, int i, long dimm_mask)
{
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_LOW, SPD_TWR, DTL_TWR_SHIFT, DTL_TWR_MASK, DTL_TWR_BASE, DTL_TWR_MIN, DTL_TWR_MAX);
+ return update_dimm_TT_1_4(ctrl, param, i, dimm_mask, DRAM_TIMING_LOW, SPD_TWR, DTL_TWR_SHIFT, DTL_TWR_MASK, DTL_TWR_BASE, DTL_TWR_MIN, DTL_TWR_MAX);
}
static int update_dimm_Tref(const struct mem_controller *ctrl,
- const struct mem_param *param, int i)
+ const struct mem_param *param, int i, long dimm_mask)
{
uint32_t dth, dth_old;
int value;
- value = spd_read_byte(ctrl->channel0[i], SPD_TREF); // 0: 15.625us, 1: 3.9us 2: 7.8 us....
+ u32 spd_device = ctrl->channel0[i];
+
+ if (!(dimm_mask & (1 << i)) && (dimm_mask & (1 << (DIMM_SOCKETS + i)))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ }
+
+ value = spd_read_byte(spd_device, SPD_TREF); // 0: 15.625us, 1: 3.9us 2: 7.8 us....
if (value < 0) return -1;
if (value == 1 ) {
@@ -2093,8 +2198,13 @@
mask_page_1k = 0;
for (i = 0; i < DIMM_SOCKETS; i++) {
+ u32 spd_device = ctrl->channel0[i];
if (!(dimm_mask & (1 << i))) {
- continue;
+ if (dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ } else {
+ continue;
+ }
}
if (meminfo->sz[i].rank == 1) {
@@ -2106,7 +2216,7 @@
}
- value = spd_read_byte(ctrl->channel0[i], SPD_PRI_WIDTH);
+ value = spd_read_byte(spd_device, SPD_PRI_WIDTH);
#if QRANK_DIMM_SUPPORT == 1
rank = meminfo->sz[i].rank;
@@ -2156,7 +2266,7 @@
int dimms;
unsigned index;
dimms = 0;
- for (index = 0; index < DIMM_SOCKETS; index++, dimm_mask>>=1) {
+ for (index = 0; index < (2 * DIMM_SOCKETS); index++, dimm_mask >>= 1) {
if (dimm_mask & 1) {
dimms++;
}
@@ -2194,7 +2304,7 @@
static void set_ecc(const struct mem_controller *ctrl,
- const struct mem_param *param, long dimm_mask, struct mem_info *meminfo)
+ const struct mem_param *param, struct mem_info *meminfo)
{
int i;
int value;
@@ -2218,9 +2328,14 @@
}
for (i = 0; i < DIMM_SOCKETS; i++) {
-
- if (!(dimm_mask & (1 << i))) {
- continue;
+ u32 spd_device = ctrl->channel0[i];
+ if (!(meminfo->dimm_mask & (1 << i))) {
+ if (meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) { /* channelB only? */
+ spd_device = ctrl->channel1[i];
+ printk_debug("set_ecc spd_device: 0x%x\n", spd_device);
+ } else {
+ continue;
+ }
}
value = spd_read_byte(ctrl->channel0[i], SPD_DIMM_CONF_TYPE);
@@ -2237,13 +2352,11 @@
static int update_dimm_Twtr(const struct mem_controller *ctrl,
- const struct mem_param *param, int i)
+ const struct mem_param *param, int i, long dimm_mask)
{
-
- return update_dimm_TT_1_4(ctrl, param, i, DRAM_TIMING_HIGH, SPD_TWTR, DTH_TWTR_SHIFT, DTH_TWTR_MASK, DTH_TWTR_BASE, DTH_TWTR_MIN, DTH_TWTR_MAX);
+ return update_dimm_TT_1_4(ctrl, param, i, dimm_mask, DRAM_TIMING_HIGH, SPD_TWTR, DTH_TWTR_SHIFT, DTH_TWTR_MASK, DTH_TWTR_BASE, DTH_TWTR_MIN, DTH_TWTR_MAX);
}
-
static void set_TT(const struct mem_controller *ctrl,
const struct mem_param *param, unsigned TT_REG, unsigned TT_SHIFT,
unsigned TT_MASK, unsigned TT_BASE, unsigned TT_MIN, unsigned TT_MAX,
@@ -2510,18 +2623,25 @@
}
#endif
- /* Program the Output Driver Compensation Control Registers (Function 2:Offset 0x9c, index 0, 0x20) */
- pci_write_config32_index_wait(ctrl->f2, 0x98, 0, dword);
- if (meminfo->is_Width128) {
+ if (!(meminfo->dimm_mask & 0x0F) && (meminfo->dimm_mask & 0xF0)) { /* channelB only? */
+ /* Program the Output Driver Compensation Control Registers (Function 2:Offset 0x9c, index 0, 0x20) */
pci_write_config32_index_wait(ctrl->f2, 0x98, 0x20, dword);
- }
- /* Program the Address Timing Control Registers (Function 2:Offset 0x9c, index 4, 0x24) */
- pci_write_config32_index_wait(ctrl->f2, 0x98, 4, dwordx);
- if (meminfo->is_Width128) {
+ /* Program the Address Timing Control Registers (Function 2:Offset 0x9c, index 4, 0x24) */
pci_write_config32_index_wait(ctrl->f2, 0x98, 0x24, dwordx);
- }
+ } else {
+ /* Program the Output Driver Compensation Control Registers (Function 2:Offset 0x9c, index 0, 0x20) */
+ pci_write_config32_index_wait(ctrl->f2, 0x98, 0, dword);
+ if (meminfo->is_Width128) {
+ pci_write_config32_index_wait(ctrl->f2, 0x98, 0x20, dword);
+ }
+ /* Program the Address Timing Control Registers (Function 2:Offset 0x9c, index 4, 0x24) */
+ pci_write_config32_index_wait(ctrl->f2, 0x98, 4, dwordx);
+ if (meminfo->is_Width128) {
+ pci_write_config32_index_wait(ctrl->f2, 0x98, 0x24, dwordx);
+ }
+ }
}
@@ -2564,44 +2684,47 @@
}
-static long spd_set_dram_timing(const struct mem_controller *ctrl, const struct mem_param *param, long dimm_mask, struct mem_info *meminfo)
+static long spd_set_dram_timing(const struct mem_controller *ctrl,
+ const struct mem_param *param,
+ struct mem_info *meminfo)
{
int i;
for (i = 0; i < DIMM_SOCKETS; i++) {
int rc;
- if (!(dimm_mask & (1 << i))) {
+ if (!(meminfo->dimm_mask & (1 << i)) &&
+ !(meminfo->dimm_mask & (1 << (DIMM_SOCKETS + i))) ) {
continue;
}
- print_tx("dimm socket: ", i);
+ print_tx("spd_set_dram_timing dimm socket: ", i);
/* DRAM Timing Low Register */
print_t("\ttrc\r\n");
- if ((rc = update_dimm_Trc (ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Trc (ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttrcd\r\n");
- if ((rc = update_dimm_Trcd(ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Trcd(ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttrrd\r\n");
- if ((rc = update_dimm_Trrd(ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Trrd(ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttras\r\n");
- if ((rc = update_dimm_Tras(ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Tras(ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttrp\r\n");
- if ((rc = update_dimm_Trp (ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Trp (ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttrtp\r\n");
if ((rc = update_dimm_Trtp(ctrl, param, i, meminfo)) <= 0) goto dimm_err;
print_t("\ttwr\r\n");
- if ((rc = update_dimm_Twr (ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Twr (ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
/* DRAM Timing High Register */
print_t("\ttref\r\n");
- if ((rc = update_dimm_Tref(ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Tref(ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttwtr\r\n");
- if ((rc = update_dimm_Twtr(ctrl, param, i)) <= 0) goto dimm_err;
+ if ((rc = update_dimm_Twtr(ctrl, param, i, meminfo->dimm_mask)) <= 0) goto dimm_err;
print_t("\ttrfc\r\n");
if ((rc = update_dimm_Trfc(ctrl, param, i, meminfo)) <= 0) goto dimm_err;
@@ -2610,14 +2733,13 @@
continue;
dimm_err:
+ printk_debug("spd_set_dram_timing dimm_err!\n");
if (rc < 0) {
return -1;
}
- dimm_mask = disable_dimm(ctrl, i, dimm_mask, meminfo);
+ meminfo->dimm_mask = disable_dimm(ctrl, i, meminfo);
}
- meminfo->dimm_mask = dimm_mask; // store final dimm_mask
-
get_extra_dimm_mask(ctrl, meminfo); // will be used by RDqsEn and dimm_x4
/* DRAM Timing Low Register */
@@ -2636,7 +2758,7 @@
set_RDqsEn(ctrl, param, meminfo);
/* DRAM Config Low */
- set_ecc(ctrl, param, dimm_mask, meminfo);
+ set_ecc(ctrl, param, meminfo);
set_dimm_x4(ctrl, param, meminfo);
set_DramTerm(ctrl, param, meminfo);
@@ -2644,7 +2766,7 @@
set_idle_cycle_limit(ctrl, param);
set_RdWrQByp(ctrl, param);
- return dimm_mask;
+ return meminfo->dimm_mask;
}
static void sdram_set_spd_registers(const struct mem_controller *ctrl,
@@ -2654,7 +2776,6 @@
const struct mem_param *param;
struct mem_param paramx;
struct mem_info *meminfo;
- long dimm_mask;
#if 1
if (!sysinfo->ctrl_present[ctrl->node_id]) {
return;
@@ -2665,24 +2786,35 @@
print_debug_addr("sdram_set_spd_registers: paramx :", ¶mx);
activate_spd_rom(ctrl);
- dimm_mask = spd_detect_dimms(ctrl);
- if (!(dimm_mask & ((1 << DIMM_SOCKETS) - 1))) {
+ meminfo->dimm_mask = spd_detect_dimms(ctrl);
+
+ print_tx("sdram_set_spd_registers: dimm_mask=0x%x\n", meminfo->dimm_mask);
+
+ if (!(meminfo->dimm_mask & ((1 << 2*DIMM_SOCKETS) - 1)))
+ {
print_debug("No memory for this cpu\r\n");
return;
}
- dimm_mask = spd_enable_2channels(ctrl, dimm_mask, meminfo);
- if (dimm_mask < 0)
+ meminfo->dimm_mask = spd_enable_2channels(ctrl, meminfo);
+ print_tx("spd_enable_2channels: dimm_mask=0x%x\n", meminfo->dimm_mask);
+ if (meminfo->dimm_mask == -1)
goto hw_spd_err;
- dimm_mask = spd_set_ram_size(ctrl , dimm_mask, meminfo);
- if (dimm_mask < 0)
+
+ meminfo->dimm_mask = spd_set_ram_size(ctrl, meminfo);
+ print_tx("spd_set_ram_size: dimm_mask=0x%x\n", meminfo->dimm_mask);
+ if (meminfo->dimm_mask == -1)
goto hw_spd_err;
- dimm_mask = spd_handle_unbuffered_dimms(ctrl, dimm_mask, meminfo);
- if (dimm_mask < 0)
+
+ meminfo->dimm_mask = spd_handle_unbuffered_dimms(ctrl, meminfo);
+ print_tx("spd_handle_unbuffered_dimms: dimm_mask=0x%x\n", meminfo->dimm_mask);
+ if (meminfo->dimm_mask == -1)
goto hw_spd_err;
- result = spd_set_memclk(ctrl, dimm_mask, meminfo);
+
+ result = spd_set_memclk(ctrl, meminfo);
param = result.param;
- dimm_mask = result.dimm_mask;
- if (dimm_mask < 0)
+ meminfo->dimm_mask = result.dimm_mask;
+ print_tx("spd_set_memclk: dimm_mask=0x%x\n", meminfo->dimm_mask);
+ if (meminfo->dimm_mask == -1)
goto hw_spd_err;
//store memclk set to sysinfo, incase we need rebuilt param again
@@ -2692,8 +2824,9 @@
paramx.divisor = get_exact_divisor(param->dch_memclk, paramx.divisor);
- dimm_mask = spd_set_dram_timing(ctrl, ¶mx , dimm_mask, meminfo); // dimm_mask will be stored to meminfo->dimm_mask
- if (dimm_mask < 0)
+ meminfo->dimm_mask = spd_set_dram_timing(ctrl, ¶mx, meminfo);
+ print_tx("spd_set_dram_timing: dimm_mask=0x%x\n", meminfo->dimm_mask);
+ if (meminfo->dimm_mask == -1)
goto hw_spd_err;
order_dimms(ctrl, meminfo);
@@ -2701,8 +2834,7 @@
return;
hw_spd_err:
/* Unrecoverable error reading SPD data */
- print_err("SPD error - reset\r\n");
- hard_reset();
+ die("Unrecoverable error reading SPD data. No qualified DIMMs?");
return;
}
Index: coreboot-v2/src/northbridge/amd/amdk8/raminit_f_dqs.c
===================================================================
--- coreboot-v2.orig/src/northbridge/amd/amdk8/raminit_f_dqs.c 2008-09-26 13:30:56.000000000 -0600
+++ coreboot-v2/src/northbridge/amd/amdk8/raminit_f_dqs.c 2008-09-26 16:01:35.000000000 -0600
@@ -1,6 +1,23 @@
/*
- yhlu 2005.10 dqs training
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2005 YingHai Lu
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
//0: mean no debug info
#define DQS_TRAIN_DEBUG 0
@@ -187,11 +204,6 @@
static unsigned RcvrRankEnabled(const struct mem_controller *ctrl, int channel, int cs_idx, unsigned is_Width128, struct sys_info *sysinfo)
{
- /* FIXME: process 64Muxed */
- if(!is_Width128) {
- if(channel) return 0; // no channel b
- }
-
return ChipSelPresent(ctrl, cs_idx, sysinfo);
}
@@ -386,7 +398,11 @@
{
uint32_t dword;
unsigned index = 0x10;
-
+
+ dword = pci_read_config32_index_wait(ctrl->f2, 0x98, index);
+ pci_write_config32_index_wait(ctrl->f2, 0x98, index, dword);
+
+ index += 0x20;
dword = pci_read_config32_index_wait(ctrl->f2, 0x98, index);
pci_write_config32_index_wait(ctrl->f2, 0x98, index, dword);
@@ -504,9 +520,9 @@
unsigned PatternA;
unsigned PatternB;
- unsigned TestAddr0, TestAddr0B, TestAddr1, TestAddr1B;
+ unsigned TestAddr0, TestAddr0B, TestAddr1, TestAddr1B = 0;
- unsigned CurrRcvrCHADelay;
+ unsigned CurrRcvrCHADelay = 0;
unsigned tmp;
@@ -575,7 +591,14 @@
Errors = 0;
/* for each channel */
CTLRMaxDelay = 0;
- for(channel = 0; (channel < 2) && (!Errors); channel++)
+ channel = 0;
+
+ if (!(sysinfo->meminfo[ctrl->node_id].dimm_mask & 0x0F) &&
+ (sysinfo->meminfo[ctrl->node_id].dimm_mask & 0xF0)) { /* channelB only? */
+ channel = 1;
+ }
+
+ for ( ; (channel < 2) && (!Errors); channel++)
{
print_debug_dqs("\tTrainRcvEn51: channel ",channel, 1);
@@ -1104,8 +1127,8 @@
unsigned TestAddr;
unsigned LastTest;
- unsigned RnkDlyFilterMax, RnkDlyFilterMin;
- unsigned RnkDlySeqPassMax, RnkDlySeqPassMin;
+ unsigned RnkDlyFilterMax, RnkDlyFilterMin = 0;
+ unsigned RnkDlySeqPassMax, RnkDlySeqPassMin = 0;
Errors = 0;
BanksPresent = 0;
@@ -1388,8 +1411,13 @@
print_debug_addr("TrainDQSRdWrPos: buf_a:", buf_a);
Errors = 0;
-
channel = 0;
+
+ if (!(sysinfo->meminfo[ctrl->node_id].dimm_mask & 0x0F) &&
+ (sysinfo->meminfo[ctrl->node_id].dimm_mask & 0xF0)) { /* channelB only? */
+ channel = 1;
+ }
+
while( (channel<2) && (!Errors)) {
print_debug_dqs("\tTrainDQSRdWrPos: 1 channel ",channel, 1);
for(DQSWrDelay = 0; DQSWrDelay < 48; DQSWrDelay++) {