From d773fd370a92a6da2f7dbf91c085eb0df1f6f30d Mon Sep 17 00:00:00 2001 From: Uwe Hermann Date: Sat, 20 Nov 2010 20:23:08 +0000 Subject: Some more DIMM0 related cleanups and deduplication. - VIA VT8235: Do the shift in smbus_read_byte() as all other chipsets do. - spd.h: Move RC00-RC63 #defines here, they were duplicated in lots of romstage.c files and lots of spd_addr.h files. Don't even bother for those spd_addr.h which aren't even actually used, drop them right away. - Replace various 0x50 hardcoded numbers with DIMM0, 0x51 with DIMM1, and 0xa0 with (DIMM0 << 1) where appropriate. - Various debug.c files: Replace SMBUS_MEM_DEVICE_START with DIMM0, SMBUS_MEM_DEVICE_END with DIMM7, and drop useless SMBUS_MEM_DEVICE_INC. - VIA VX800: Drop unused SMBUS_ADDR_CH* #defines. - VIA VT8623: Do the shift in smbus_read_byte() as all other chipsets do. Then, replace 0xa0 (which now becomes 0x50) with DIMM0. - alix1c/romstage.c, alix2d/romstage.c: Adapt to recent bit shift changes. - Various files: Drop DIMM_SPD_BASE and/or replace it with DIMM0. Signed-off-by: Uwe Hermann Acked-by: Patrick Georgi git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6100 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/northbridge/intel/i945/debug.c | 11 ++++----- src/northbridge/intel/i945/raminit.c | 45 ++++++++++++++++++------------------ src/northbridge/intel/i945/raminit.h | 1 - 3 files changed, 26 insertions(+), 31 deletions(-) (limited to 'src/northbridge/intel/i945') diff --git a/src/northbridge/intel/i945/debug.c b/src/northbridge/intel/i945/debug.c index 8dc76fe447..859a1ef613 100644 --- a/src/northbridge/intel/i945/debug.c +++ b/src/northbridge/intel/i945/debug.c @@ -19,6 +19,7 @@ * MA 02110-1301 USA */ +#include #include #include #include @@ -26,10 +27,6 @@ #include #include "i945.h" -#define SMBUS_MEM_DEVICE_START 0x50 -#define SMBUS_MEM_DEVICE_END 0x53 -#define SMBUS_MEM_DEVICE_INC 1 - void print_pci_devices(void) { device_t dev; @@ -88,8 +85,8 @@ void dump_pci_devices(void) void dump_spd_registers(void) { unsigned device; - device = SMBUS_MEM_DEVICE_START; - while(device <= SMBUS_MEM_DEVICE_END) { + device = DIMM0; + while(device <= DIMM3) { int status = 0; int i; printk(BIOS_DEBUG, "\ndimm %02x", device); @@ -105,7 +102,7 @@ void dump_spd_registers(void) } printk(BIOS_DEBUG, "%02x ", status); } - device += SMBUS_MEM_DEVICE_INC; + device++; printk(BIOS_DEBUG, "\n"); } } diff --git a/src/northbridge/intel/i945/raminit.c b/src/northbridge/intel/i945/raminit.c index c23fa64dbb..77b9ade6c4 100644 --- a/src/northbridge/intel/i945/raminit.c +++ b/src/northbridge/intel/i945/raminit.c @@ -323,15 +323,14 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo) /** * i945 supports two DIMMs, in two configurations: * - * - single channel with two dimms - * - dual channel with one dimm per channel + * - single channel with two DIMMs + * - dual channel with one DIMM per channel * - * In practice dual channel mainboards have their spd at 0x50, 0x52 - * whereas single channel configurations have their spd at 0x50/x51 + * In practice dual channel mainboards have their SPD at 0x50/0x52 + * whereas single channel configurations have their SPD at 0x50/0x51. * * The capability register knows a lot about the channel configuration - * but for now we stick with the information we gather from the SPD - * ROMs + * but for now we stick with the information we gather via SPD. */ if (sdram_capabilities_dual_channel()) { @@ -362,7 +361,7 @@ static void sdram_get_dram_configuration(struct sys_info *sysinfo) */ for (i=0; i<(2 * DIMM_SOCKETS); i++) { - u8 reg8, device = DIMM_SPD_BASE + i; + u8 reg8, device = DIMM0 + i; /* Initialize the socket information with a sane value */ sysinfo->dimm[i] = SYSINFO_DIMM_NOT_POPULATED; @@ -453,7 +452,7 @@ static void sdram_verify_package_type(struct sys_info * sysinfo) continue; /* Is the current DIMM a stacked DIMM? */ - if (spd_read_byte(DIMM_SPD_BASE + i, SPD_NUM_DIMM_BANKS) & (1 << 4)) + if (spd_read_byte(DIMM0 + i, SPD_NUM_DIMM_BANKS) & (1 << 4)) sysinfo->package = 1; } } @@ -470,7 +469,7 @@ static u8 sdram_possible_cas_latencies(struct sys_info * sysinfo) for (i=0; i<2*DIMM_SOCKETS; i++) { if (sysinfo->dimm[i] != SYSINFO_DIMM_NOT_POPULATED) - cas_mask &= spd_read_byte(DIMM_SPD_BASE + i, SPD_ACCEPTABLE_CAS_LATENCIES); + cas_mask &= spd_read_byte(DIMM0 + i, SPD_ACCEPTABLE_CAS_LATENCIES); } if(!cas_mask) { @@ -531,7 +530,7 @@ static void sdram_detect_cas_latency_and_ram_speed(struct sys_info * sysinfo, u8 continue; } - current_cas_mask = spd_read_byte(DIMM_SPD_BASE + i, SPD_ACCEPTABLE_CAS_LATENCIES); + current_cas_mask = spd_read_byte(DIMM0 + i, SPD_ACCEPTABLE_CAS_LATENCIES); while (current_cas_mask) { int highest_supported_cas = 0, current_cas = 0; @@ -553,11 +552,11 @@ static void sdram_detect_cas_latency_and_ram_speed(struct sys_info * sysinfo, u8 idx = highest_supported_cas - current_cas; PRINTK_DEBUG("idx=%d, ", idx); - PRINTK_DEBUG("tCLK=%x, ", spd_read_byte(DIMM_SPD_BASE + i, spd_lookup_table[2*idx])); - PRINTK_DEBUG("tAC=%x", spd_read_byte(DIMM_SPD_BASE + i, spd_lookup_table[(2*idx)+1])); + PRINTK_DEBUG("tCLK=%x, ", spd_read_byte(DIMM0 + i, spd_lookup_table[2*idx])); + PRINTK_DEBUG("tAC=%x", spd_read_byte(DIMM0 + i, spd_lookup_table[(2*idx)+1])); - if (spd_read_byte(DIMM_SPD_BASE + i, spd_lookup_table[2*idx]) <= ddr2_speeds_table[2*j] && - spd_read_byte(DIMM_SPD_BASE + i, spd_lookup_table[(2*idx)+1]) <= ddr2_speeds_table[(2*j)+1]) { + if (spd_read_byte(DIMM0 + i, spd_lookup_table[2*idx]) <= ddr2_speeds_table[2*j] && + spd_read_byte(DIMM0 + i, spd_lookup_table[(2*idx)+1]) <= ddr2_speeds_table[(2*j)+1]) { PRINTK_DEBUG(": OK\n"); break; } @@ -621,7 +620,7 @@ static void sdram_detect_smallest_tRAS(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - reg8 = spd_read_byte(DIMM_SPD_BASE + i, SPD_MIN_ACTIVE_TO_PRECHARGE_DELAY); + reg8 = spd_read_byte(DIMM0 + i, SPD_MIN_ACTIVE_TO_PRECHARGE_DELAY); if (!reg8) { die("Invalid tRAS value.\n"); } @@ -661,7 +660,7 @@ static void sdram_detect_smallest_tRP(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - reg8 = spd_read_byte(DIMM_SPD_BASE + i, SPD_MIN_ROW_PRECHARGE_TIME); + reg8 = spd_read_byte(DIMM0 + i, SPD_MIN_ROW_PRECHARGE_TIME); if (!reg8) { die("Invalid tRP value.\n"); } @@ -702,7 +701,7 @@ static void sdram_detect_smallest_tRCD(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - reg8 = spd_read_byte(DIMM_SPD_BASE + i, SPD_MIN_RAS_TO_CAS_DELAY); + reg8 = spd_read_byte(DIMM0 + i, SPD_MIN_RAS_TO_CAS_DELAY); if (!reg8) { die("Invalid tRCD value.\n"); } @@ -742,7 +741,7 @@ static void sdram_detect_smallest_tWR(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - reg8 = spd_read_byte(DIMM_SPD_BASE + i, SPD_WRITE_RECOVERY_TIME); + reg8 = spd_read_byte(DIMM0 + i, SPD_WRITE_RECOVERY_TIME); if (!reg8) { die("Invalid tWR value.\n"); } @@ -823,7 +822,7 @@ static void sdram_detect_smallest_refresh(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - refresh = spd_read_byte(DIMM_SPD_BASE + i, SPD_REFRESH) & ~(1 << 7); + refresh = spd_read_byte(DIMM0 + i, SPD_REFRESH) & ~(1 << 7); /* 15.6us */ if (!refresh) @@ -851,7 +850,7 @@ static void sdram_verify_burst_length(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - if (!(spd_read_byte(DIMM_SPD_BASE + i, SPD_SUPPORTED_BURST_LENGTHS) & SPD_BURST_LENGTH_8)) + if (!(spd_read_byte(DIMM0 + i, SPD_SUPPORTED_BURST_LENGTHS) & SPD_BURST_LENGTH_8)) die("Only DDR-II RAM with burst length 8 is supported by this chipset.\n"); } } @@ -1471,9 +1470,9 @@ static void sdram_detect_dimm_size(struct sys_info * sysinfo) if (sysinfo->dimm[i] == SYSINFO_DIMM_NOT_POPULATED) continue; - sz = sdram_get_dimm_size(DIMM_SPD_BASE + i); + sz = sdram_get_dimm_size(DIMM0 + i); - sysinfo->banks[i] = spd_read_byte(DIMM_SPD_BASE + i, SPD_NUM_BANKS_PER_SDRAM); /* banks */ + sysinfo->banks[i] = spd_read_byte(DIMM0 + i, SPD_NUM_BANKS_PER_SDRAM); /* banks */ if (sz.side1 < 30) die("DDR-II rank size smaller than 128MB is not supported.\n"); @@ -1565,7 +1564,7 @@ static int sdram_set_row_attributes(struct sys_info *sysinfo) continue; } - device = DIMM_SPD_BASE + i; + device = DIMM0 + i; value = spd_read_byte(device, SPD_NUM_ROWS); /* rows */ columnsrows = (value & 0x0f); diff --git a/src/northbridge/intel/i945/raminit.h b/src/northbridge/intel/i945/raminit.h index 026d715047..197a6005fa 100644 --- a/src/northbridge/intel/i945/raminit.h +++ b/src/northbridge/intel/i945/raminit.h @@ -22,7 +22,6 @@ #define DIMM_SOCKETS 2 -#define DIMM_SPD_BASE 0x50 #define DIMM_TCO_BASE 0x30 /* Burst length is always 8 */ -- cgit v1.2.3