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Diffstat (limited to 'src/device/dram/ddr3.c')
-rw-r--r--src/device/dram/ddr3.c64
1 files changed, 27 insertions, 37 deletions
diff --git a/src/device/dram/ddr3.c b/src/device/dram/ddr3.c
index b99730d45b..2bdfd46c6b 100644
--- a/src/device/dram/ddr3.c
+++ b/src/device/dram/ddr3.c
@@ -29,9 +29,8 @@
*/
int spd_dimm_is_registered_ddr3(enum spd_dimm_type_ddr3 type)
{
- if ((type == SPD_DDR3_DIMM_TYPE_RDIMM)
- | (type == SPD_DDR3_DIMM_TYPE_MINI_RDIMM)
- | (type == SPD_DDR3_DIMM_TYPE_72B_SO_RDIMM))
+ if ((type == SPD_DDR3_DIMM_TYPE_RDIMM) | (type == SPD_DDR3_DIMM_TYPE_MINI_RDIMM) |
+ (type == SPD_DDR3_DIMM_TYPE_72B_SO_RDIMM))
return 1;
return 0;
@@ -104,8 +103,8 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
u16 crc, spd_crc;
u8 capacity_shift, bus_width;
u8 reg8;
- u32 mtb; /* medium time base */
- u32 ftb; /* fine time base */
+ u32 mtb; /* medium time base */
+ u32 ftb; /* fine time base */
unsigned int val;
ret = SPD_STATUS_OK;
@@ -233,13 +232,13 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
/* Capacity is 256Mbit multiplied by the power of 2 specified in
* capacity_shift
* The rest is the JEDEC formula */
- dimm->size_mb = ((1 << (capacity_shift + (25 - 20))) * bus_width
- * dimm->ranks) / dimm->width;
+ dimm->size_mb =
+ ((1 << (capacity_shift + (25 - 20))) * bus_width * dimm->ranks) / dimm->width;
/* Medium Timebase =
* Medium Timebase (MTB) Dividend /
* Medium Timebase (MTB) Divisor */
- mtb = (((u32) spd[10]) << 8) / spd[11];
+ mtb = (((u32)spd[10]) << 8) / spd[11];
/* SDRAM Minimum Cycle Time (tCKmin) */
dimm->tCK = spd[12] * mtb;
@@ -281,23 +280,22 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
/* Fine timebase (1/256 ps) =
* Fine Timebase (FTB) Dividend /
* Fine Timebase (FTB) Divisor */
- ftb = (((u16) spd[9] & 0xf0) << 4) / (spd[9] & 0x0f);
+ ftb = (((u16)spd[9] & 0xf0) << 4) / (spd[9] & 0x0f);
/* SPD recommends to round up the MTB part and use a negative
* FTB, so a negative rounding should be always safe */
/* SDRAM Minimum Cycle Time (tCKmin) correction */
- dimm->tCK += (s32)((s8) spd[34] * ftb - 500) / 1000;
+ dimm->tCK += (s32)((s8)spd[34] * ftb - 500) / 1000;
/* Minimum CAS Latency Time (tAAmin) correction */
- dimm->tAA += (s32)((s8) spd[35] * ftb - 500) / 1000;
+ dimm->tAA += (s32)((s8)spd[35] * ftb - 500) / 1000;
/* Minimum RAS# to CAS# Delay Time (tRCDmin) correction */
- dimm->tRCD += (s32)((s8) spd[36] * ftb - 500) / 1000;
+ dimm->tRCD += (s32)((s8)spd[36] * ftb - 500) / 1000;
/* Minimum Row Precharge Delay Time (tRPmin) correction */
- dimm->tRP += (s32)((s8) spd[37] * ftb - 500) / 1000;
+ dimm->tRP += (s32)((s8)spd[37] * ftb - 500) / 1000;
/* Minimum Active to Active/Refresh Delay Time (tRCmin) corr. */
- dimm->tRC += (s32)((s8) spd[38] * ftb - 500) / 1000;
- }
- else {
+ dimm->tRC += (s32)((s8)spd[38] * ftb - 500) / 1000;
+ } else {
printram(" no\n");
}
@@ -347,8 +345,7 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
reg8 = spd[32];
if (reg8 & 0x80)
dimm->flags.therm_sensor = 1;
- printram(" Thermal sensor : %s\n",
- dimm->flags.therm_sensor ? "yes" : "no");
+ printram(" Thermal sensor : %s\n", dimm->flags.therm_sensor ? "yes" : "no");
/* SDRAM Device Type */
printram(" Standard SDRAM : %s\n", (spd[33] & 0x80) ? "no" : "yes");
@@ -356,8 +353,7 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
if (spd[63] & 0x01) {
dimm->flags.pins_mirrored = 1;
}
- printram(" Rank1 Address bits : %s\n",
- (spd[63] & 0x01) ? "mirrored" : "normal");
+ printram(" Rank1 Address bits : %s\n", (spd[63] & 0x01) ? "mirrored" : "normal");
dimm->reference_card = spd[62] & 0x1f;
printram(" DIMM Reference card: %c\n", 'A' + dimm->reference_card);
@@ -394,13 +390,12 @@ int spd_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd)
* SPD_STATUS_INVALID_FIELD -- A field with an invalid value was
* detected.
*/
-int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm,
- spd_raw_data spd,
- enum ddr3_xmp_profile profile)
+int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm, spd_raw_data spd,
+ enum ddr3_xmp_profile profile)
{
int ret;
- u32 mtb; /* medium time base */
- u8 *xmp; /* pointer to XMP profile data */
+ u32 mtb; /* medium time base */
+ u8 *xmp; /* pointer to XMP profile data */
/* need a valid SPD */
ret = spd_decode_ddr3(dimm, spd);
@@ -427,7 +422,7 @@ int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm,
/* Medium Timebase =
* Medium Timebase (MTB) Dividend /
* Medium Timebase (MTB) Divisor */
- mtb = (((u32) spd[180]) << 8) / spd[181];
+ mtb = (((u32)spd[180]) << 8) / spd[181];
dimm->dimms_per_channel = ((spd[178] >> 2) & 0x3) + 1;
} else {
@@ -442,13 +437,12 @@ int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm,
/* Medium Timebase =
* Medium Timebase (MTB) Dividend /
* Medium Timebase (MTB) Divisor */
- mtb = (((u32) spd[182]) << 8) / spd[183];
+ mtb = (((u32)spd[182]) << 8) / spd[183];
dimm->dimms_per_channel = ((spd[178] >> 4) & 0x3) + 1;
}
- printram(" Max DIMMs/channel : %u\n",
- dimm->dimms_per_channel);
+ printram(" Max DIMMs/channel : %u\n", dimm->dimms_per_channel);
printram(" XMP Revision : %u.%u\n", spd[179] >> 4, spd[179] & 0xf);
@@ -503,8 +497,7 @@ int spd_xmp_decode_ddr3(struct dimm_attr_ddr3_st *dimm,
*
* @return CB_SUCCESS if DIMM info was written
*/
-enum cb_err spd_add_smbios17(const u8 channel, const u8 slot,
- const u16 selected_freq,
+enum cb_err spd_add_smbios17(const u8 channel, const u8 slot, const u16 selected_freq,
const struct dimm_attr_ddr3_st *info)
{
struct memory_info *mem_info;
@@ -518,8 +511,7 @@ enum cb_err spd_add_smbios17(const u8 channel, const u8 slot,
if (!mem_info) {
mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info));
- printk(BIOS_DEBUG, "CBMEM entry for DIMM info: %p\n",
- mem_info);
+ printk(BIOS_DEBUG, "CBMEM entry for DIMM info: %p\n", mem_info);
if (!mem_info)
return CB_ERR;
@@ -527,8 +519,7 @@ enum cb_err spd_add_smbios17(const u8 channel, const u8 slot,
}
if (mem_info->dimm_cnt >= ARRAY_SIZE(mem_info->dimm)) {
- printk(BIOS_WARNING, "BUG: Too many DIMM infos for %s.\n",
- __func__);
+ printk(BIOS_WARNING, "BUG: Too many DIMM infos for %s.\n", __func__);
return CB_ERR;
}
@@ -635,6 +626,5 @@ void dram_print_spd_ddr3(const struct dimm_attr_ddr3_st *dimm)
if (dimm->tCWL)
print_ns(" tCWLmin : ", dimm->tCWL);
if (dimm->tCMD)
- printk(BIOS_INFO, " tCMDmin : %3u\n",
- DIV_ROUND_UP(dimm->tCMD, 256));
+ printk(BIOS_INFO, " tCMDmin : %3u\n", DIV_ROUND_UP(dimm->tCMD, 256));
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-23 13:54:18 +0000