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Diffstat (limited to 'src/northbridge/amd/amdk8/raminit.c')
-rw-r--r--src/northbridge/amd/amdk8/raminit.c156
1 files changed, 74 insertions, 82 deletions
diff --git a/src/northbridge/amd/amdk8/raminit.c b/src/northbridge/amd/amdk8/raminit.c
index 5d9c320637..d211f4bcc1 100644
--- a/src/northbridge/amd/amdk8/raminit.c
+++ b/src/northbridge/amd/amdk8/raminit.c
@@ -585,6 +585,16 @@ static void hw_enable_ecc(const struct mem_controller *ctrl)
}
+static void e_step_cpu(const struct mem_controller *ctrl)
+{
+ uint32_t dcl,data32;
+
+ /* set bit 29 (upper cs map) of function 2 offset 0x90 */
+ dcl = pci_read_config32(ctrl->f2, DRAM_CONFIG_LOW);
+ dcl |= DCL_UpperCSMap;
+ pci_write_config32(ctrl->f2, DRAM_CONFIG_LOW, dcl);
+}
+
static int is_dual_channel(const struct mem_controller *ctrl)
{
uint32_t dcl;
@@ -714,28 +724,14 @@ hw_err:
return sz;
}
-static const unsigned cs_map_aa[15] = {
- /* (row=12, col=8)(14, 12) ---> (0, 0) (2, 4) */
- 0, 1, 3, 6, 0,
- 0, 2, 4, 7, 9,
- 0, 0, 5, 8,10,
-};
-
static void set_dimm_size(const struct mem_controller *ctrl, struct dimm_size sz, unsigned index)
{
- uint32_t base0, base1, map;
+ uint32_t base0, base1;
uint32_t dch;
if (sz.side1 != sz.side2) {
sz.side2 = 0;
}
- map = pci_read_config32(ctrl->f2, DRAM_BANK_ADDR_MAP);
- map &= ~(0xf << (index * 4));
-#if K8_4RANK_DIMM_SUPPORT == 1
- if(sz.rank == 4) {
- map &= ~(0xf << ( (index + 2) * 4));
- }
-#endif
/* For each base register.
* Place the dimm size in 32 MB quantities in the bits 31 - 21.
@@ -747,22 +743,6 @@ static void set_dimm_size(const struct mem_controller *ctrl, struct dimm_size sz
/* Make certain side1 of the dimm is at least 32MB */
if (sz.side1 >= (25 +3)) {
- if(is_cpu_pre_d0()) {
- map |= (sz.side1 - (25 + 3)) << (index *4);
-#if K8_4RANK_DIMM_SUPPORT == 1
- if(sz.rank == 4) {
- map |= (sz.side1 - (25 + 3)) << ( (index + 2) * 4);
- }
-#endif
- }
- else {
- map |= cs_map_aa[(sz.rows - 12) * 5 + (sz.col - 8) ] << (index*4);
-#if K8_4RANK_DIMM_SUPPORT == 1
- if(sz.rank == 4) {
- map |= cs_map_aa[(sz.rows - 12) * 5 + (sz.col - 8) ] << ( (index + 2) * 4);
- }
-#endif
- }
base0 = (1 << ((sz.side1 - (25 + 3)) + 21)) | 1;
}
@@ -791,8 +771,6 @@ static void set_dimm_size(const struct mem_controller *ctrl, struct dimm_size sz
}
#endif
- pci_write_config32(ctrl->f2, DRAM_BANK_ADDR_MAP, map);
-
/* Enable the memory clocks for this DIMM */
if (base0) {
dch = pci_read_config32(ctrl->f2, DRAM_CONFIG_HIGH);
@@ -806,6 +784,52 @@ static void set_dimm_size(const struct mem_controller *ctrl, struct dimm_size sz
}
}
+
+static void set_dimm_map(const struct mem_controller *ctrl,
+ struct dimm_size sz, unsigned index)
+{
+ static const unsigned cs_map_aa[15] = {
+ /* (row=12, col=8)(14, 12) ---> (0, 0) (2, 4) */
+ 0, 1, 3, 6, 0,
+ 0, 2, 4, 7, 9,
+ 0, 0, 5, 8,10,
+ };
+ uint32_t map;
+ int row,col;
+
+ map = pci_read_config32(ctrl->f2, DRAM_BANK_ADDR_MAP);
+ map &= ~(0xf << (index * 4));
+
+#if K8_4RANK_DIMM_SUPPORT == 1
+ if(sz.rank == 4) {
+ map &= ~(0xf << ( (index + 2) * 4));
+ }
+#endif
+
+ if (is_cpu_pre_d0()) {
+ map |= (sz.side1 - (25 + 3)) << (index *4);
+#if K8_4RANK_DIMM_SUPPORT == 1
+ if(sz.rank == 4) {
+ map |= (sz.side1 - (25 + 3)) << ( (index + 2) * 4);
+ }
+#endif
+ } else {
+ unsigned val;
+ val = cs_map_aa[(sz.rows - 12) * 5 + (sz.col - 8) ];
+ if(val == 0) {
+ print_err("Invalid Column or Row count\r\n");
+ val = 7;
+ }
+ map |= val << (index*4);
+#if K8_4RANK_DIMM_SUPPORT == 1
+ if(sz.rank == 4) {
+ map |= val << ( (index + 2) * 4);
+ }
+#endif
+ }
+ pci_write_config32(ctrl->f2, DRAM_BANK_ADDR_MAP, map);
+}
+
static long spd_set_ram_size(const struct mem_controller *ctrl, long dimm_mask)
{
int i;
@@ -820,6 +844,7 @@ static long spd_set_ram_size(const struct mem_controller *ctrl, long dimm_mask)
return -1; /* Report SPD error */
}
set_dimm_size(ctrl, sz, i);
+ set_dimm_map(ctrl, sz, i);
}
return dimm_mask;
}
@@ -865,6 +890,13 @@ static void set_top_mem(unsigned tom_k)
print_spew_hex32(tom_k);
print_spew(" KB\r\n");
+#if 0
+ /* Report the amount of memory. */
+ print_debug("RAM: 0x");
+ print_debug_hex32(tom_k);
+ print_debug(" KB\r\n");
+#endif
+
/* Now set top of memory */
msr_t msr;
msr.lo = (tom_k & 0x003fffff) << 10;
@@ -971,7 +1003,7 @@ static unsigned long interleave_chip_selects(const struct mem_controller *ctrl)
if(is_dual_channel(ctrl)) {
/* Also we run out of address mask bits if we try and interleave 8 4GB dimms */
if ((bits == 3) && (common_size == (1 << (32 - 3)))) {
-// print_debug("8 4GB chip selects cannot be interleaved\r\n");
+ print_spew("8 4GB chip selects cannot be interleaved\r\n");
return 0;
}
csbase_inc <<=1;
@@ -981,7 +1013,7 @@ static unsigned long interleave_chip_selects(const struct mem_controller *ctrl)
csbase_inc = csbase_low_d0[common_cs_mode];
if(is_dual_channel(ctrl)) {
if( (bits==3) && (common_cs_mode > 8)) {
-// print_debug("8 cs_mode>8 chip selects cannot be interleaved\r\n");
+ print_spew("8 cs_mode>8 chip selects cannot be interleaved\r\n");
return 0;
}
csbase_inc <<=1;
@@ -1100,25 +1132,6 @@ unsigned long memory_end_k(const struct mem_controller *ctrl, int max_node_id)
return end_k;
}
-#if K8_E0_MEM_HOLE_SIZEK != 0
-#define K8_E0_MEM_HOLE_LIMITK 4*1024*1024
-#define K8_E0_MEM_HOLE_BASEK (K8_E0_MEM_HOLE_LIMITK - K8_E0_MEM_HOLE_SIZEK )
-
-static void set_e0_mem_hole(const struct mem_controller *ctrl, unsigned base_k)
-{
- /* Route the addresses to the controller node */
- unsigned val;
-
- val = pci_read_config32(ctrl->f1,0xf0);
-
- val &= 0x00ff00fe;
- val = (K8_E0_MEM_HOLE_BASEK << 10) | ((K8_E0_MEM_HOLE_SIZEK+base_k)>>(16-10)) | 1;
-
- pci_write_config32(ctrl->f1, 0xf0, val);
-}
-
-#endif
-
static void order_dimms(const struct mem_controller *ctrl)
{
unsigned long tom_k, base_k;
@@ -1135,14 +1148,6 @@ static void order_dimms(const struct mem_controller *ctrl)
/* Compute the memory base address */
base_k = memory_end_k(ctrl, ctrl->node_id);
tom_k += base_k;
-#if K8_E0_MEM_HOLE_SIZEK != 0
- if(!is_cpu_pre_e0()) {
- /* See if I need to check the range cover hole */
- if ((base_k <= K8_E0_MEM_HOLE_BASEK) && (tom_k > K8_E0_MEM_HOLE_BASEK)) {
- tom_k += K8_E0_MEM_HOLE_SIZEK;
- }
- }
-#endif
route_dram_accesses(ctrl, base_k, tom_k);
set_top_mem(tom_k);
}
@@ -2145,12 +2150,11 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
struct spd_set_memclk_result result;
const struct mem_param *param;
long dimm_mask;
-#if 1
+
if (!controller_present(ctrl)) {
-// print_debug("No memory controller present\r\n");
+ print_debug("No memory controller present\r\n");
return;
}
-#endif
hw_enable_ecc(ctrl);
activate_spd_rom(ctrl);
dimm_mask = spd_detect_dimms(ctrl);
@@ -2176,6 +2180,10 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
if (dimm_mask < 0)
goto hw_spd_err;
order_dimms(ctrl);
+ if( !is_cpu_pre_e0() ) {
+ print_debug("E step CPU\r\n");
+ e_step_cpu(ctrl);
+ }
return;
hw_spd_err:
/* Unrecoverable error reading SPD data */
@@ -2280,22 +2288,6 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
} while(((dcl & DCL_MemClrStatus) == 0) || ((dcl & DCL_DramEnable) == 0) );
}
- // init e0 mem hole here
-#if K8_E0_MEM_HOLE_SIZEK != 0
- if (!is_cpu_pre_e0()) {
- uint32_t base, limit;
- unsigned base_k, limit_k;
- base = pci_read_config32(ctrl->f1, 0x40 + (i << 3));
- limit = pci_read_config32(ctrl->f1, 0x44 + (i << 3));
- base_k = (base & 0xffff0000) >> 2;
- limit_k = ((limit + 0x00010000) & 0xffff0000) >> 2;
- if ((base_k <= K8_E0_MEM_HOLE_BASEK) && (limit_k > K8_E0_MEM_HOLE_BASEK)) {
- set_e0_mem_hole(ctrl+i, base_k);
- }
- }
-
-#endif
-
print_debug(" done\r\n");
}
@@ -2308,7 +2300,7 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
5. for node interleaving we need to set mem hole to every node ( need recalcute hole offset in f0 for every node)
*/
-#if USE_DCACHE_RAM == 0
+#if CONFIG_DCACHE_RAM == 0
/* Make certain the first 1M of memory is intialized */
print_debug("Clearing initial memory region: ");
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-21 22:12:14 +0000