diff options
| author | Uwe Hermann <uwe@hermann-uwe.de> | 2006-11-22 11:41:32 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2006-11-22 11:41:32 +0000 |
| commit | 998a57c477cf8d73754da3bfe1b3091aa0f88477 (patch) | |
| tree | 1af39fd89b1abed715f64c061ae18907df6584d3 /src/northbridge | |
| parent | 3ab63e1401a695883dd23156046a8ad50393b165 (diff) | |
Update of the src/include/spd.h file with the following improvements:
* Added information on the relevant datasheet(s) and where to get them.
* Added missing #defines for some other config bytes.
* Documented all config bytes a bit better.
* Renamed some #defines to hopefully make their names clearer.
(closes #38)
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2506 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/e7501/raminit.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/northbridge/intel/e7501/raminit.c b/src/northbridge/intel/e7501/raminit.c index d8b8a723e1..1aeb4f05d9 100644 --- a/src/northbridge/intel/e7501/raminit.c +++ b/src/northbridge/intel/e7501/raminit.c @@ -93,8 +93,8 @@ static const uint8_t dual_channel_parameters[] = { SPD_NUM_COLUMNS, SPD_NUM_ROWS, SPD_NUM_DIMM_BANKS, - SPD_PRIMARY_DRAM_WIDTH, - SPD_NUM_BANKS_PER_DRAM + SPD_PRIMARY_SDRAM_WIDTH, + SPD_NUM_BANKS_PER_SDRAM }; /* @@ -560,7 +560,7 @@ static struct dimm_size sdram_spd_get_width(uint16_t dimm_socket_address) width.side1 = 0; width.side2 = 0; - value = spd_read_byte(dimm_socket_address, SPD_PRIMARY_DRAM_WIDTH); + value = spd_read_byte(dimm_socket_address, SPD_PRIMARY_SDRAM_WIDTH); die_on_spd_error(value); width.side1 = value & 0x7f; // Mask off bank 2 flag @@ -625,7 +625,7 @@ static struct dimm_size spd_get_dimm_size(unsigned dimm_socket_address) sz.side2 += value; // Symmetric } - value = spd_read_byte(dimm_socket_address, SPD_NUM_BANKS_PER_DRAM); + value = spd_read_byte(dimm_socket_address, SPD_NUM_BANKS_PER_SDRAM); die_on_spd_error(value); value = log2(value); @@ -701,7 +701,7 @@ static uint8_t spd_get_supported_dimms(const struct mem_controller *ctrl) if (channel0_dimm == 0) continue; // No such socket on this mainboard - if (spd_read_byte(channel0_dimm, SPD_MEMORY_TYPE) != MEMORY_TYPE_SDRAM_DDR) + if (spd_read_byte(channel0_dimm, SPD_MEMORY_TYPE) != SPD_MEMORY_TYPE_SDRAM_DDR) continue; #ifdef VALIDATE_DIMM_COMPATIBILITY @@ -1325,7 +1325,7 @@ static void configure_e7501_cas_latency(const struct mem_controller *ctrl, uint8 current_cas_latency >>= 1; if (current_cas_latency != 0) { - value = spd_read_byte(dimm_socket_address, SPD_MIN_CYCLE_TIME_AT_CAS_REDUCED_05); + value = spd_read_byte(dimm_socket_address, SPD_SDRAM_CYCLE_TIME_2ND); if(value < 0 ) goto hw_err; if(value > 0x75) dimm_compatible_cas_latencies &= ~current_cas_latency; @@ -1334,7 +1334,7 @@ static void configure_e7501_cas_latency(const struct mem_controller *ctrl, uint8 // Can we support the next-highest CAS# latency (max - 1.0)? current_cas_latency >>= 1; if (current_cas_latency != 0) { - value = spd_read_byte(dimm_socket_address, SPD_MIN_CYCLE_TIME_AT_CAS_REDUCED_10); + value = spd_read_byte(dimm_socket_address, SPD_SDRAM_CYCLE_TIME_3RD); if(value < 0 ) goto hw_err; if(value > 0x75) dimm_compatible_cas_latencies &= ~current_cas_latency; @@ -1489,11 +1489,11 @@ static void configure_e7501_dram_controller_mode(const struct mem_controller *ct #ifdef SUSPICIOUS_LOOKING_CODE // SJM NOTE: This code doesn't look right. SPD values are an order of magnitude smaller // than the clock period of the memory controller. Also, no other northbridge -// looks at SPD_ADDRESS_CMD_HOLD. +// looks at SPD_CMD_SIGNAL_INPUT_HOLD_TIME. // Switch to 2 clocks for address/command if required by any one of the DIMMs // NOTE: At 133 MHz, 1 clock == 7.52 ns - value = spd_read_byte(dimm_socket_address, SPD_ADDRESS_CMD_HOLD); + value = spd_read_byte(dimm_socket_address, SPD_CMD_SIGNAL_INPUT_HOLD_TIME); die_on_spd_error(value); if(value >= 0xa0) { /* At 133MHz this constant should be 0x75 */ controller_mode &= ~(1<<16); /* Use two clock cyles instead of one */ @@ -1984,4 +1984,4 @@ static void sdram_set_registers(const struct mem_controller *ctrl) /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ /* PUBLIC INTERFACE */ -/**********************************************************************************/
\ No newline at end of file +/**********************************************************************************/ |