From 100b14d12bbf62ebaf81436ef6fd8c2c551d45ff Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Wed, 27 Nov 2013 16:51:26 -0600 Subject: rambi: handle single channel configs Some 1.5 boards have a single channel ram configuration. Accomodate such configs. BUG=chrome-os-partner:22865 BRANCH=None TEST=Built and booted ChromeOS. Change-Id: I513327e47b9211d2dd1ea960d7da671a3773cb91 Signed-off-by: Aaron Durbin Reviewed-on: https://chromium-review.googlesource.com/178340 Reviewed-by: Nick Sanders Tested-by: Bernie Thompson Tested-by: Nick Sanders Reviewed-on: http://review.coreboot.org/4983 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/mainboard/google/rambi/romstage.c | 18 +++++++++++++++--- src/mainboard/google/rambi/spd/Makefile.inc | 4 ++++ 2 files changed, 19 insertions(+), 3 deletions(-) (limited to 'src/mainboard/google/rambi') diff --git a/src/mainboard/google/rambi/romstage.c b/src/mainboard/google/rambi/romstage.c index 369ebad445..efe1343950 100644 --- a/src/mainboard/google/rambi/romstage.c +++ b/src/mainboard/google/rambi/romstage.c @@ -31,7 +31,12 @@ * 0b001 - 4GiB total - 2 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz * 0b010 - 2GiB total - 2 x 1GiB Micron MT41K128M16JT-125:K 1600MHz * 0b011 - 2GiB total - 2 x 1GiB Hynix H5TC2G63FFR-PBA 1600MHz + * 0b100 - 2GiB total - 1 x 2GiB Micron MT41K256M16HA-125:E 1600MHz + * 0b101 - 2GiB total - 1 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz */ +static const uint32_t dual_channel_config = + (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3); + #define SPD_SIZE 256 #define GPIO_SSUS_37_PAD 57 #define GPIO_SSUS_38_PAD 50 @@ -43,7 +48,7 @@ static inline void disable_internal_pull(int pad) write32(ssus_pconf0(pad), read32(ssus_pconf0(pad)) & pull_mask); } -static void *get_spd_pointer(char *spd_file_content, int total_spds) +static void *get_spd_pointer(char *spd_file_content, int total_spds, int *dual) { int ram_id = 0; @@ -63,6 +68,10 @@ static void *get_spd_pointer(char *spd_file_content, int total_spds) if (ram_id >= total_spds) return NULL; + /* Single channel configs */ + if (dual_channel_config & (1 << ram_id)) + *dual = 1; + return &spd_file_content[SPD_SIZE * ram_id]; } @@ -70,6 +79,7 @@ void mainboard_romstage_entry(struct romstage_params *rp) { struct cbfs_file *spd_file; void *spd_content; + int dual_channel = 0; struct mrc_params mp = { .mainboard = { @@ -84,9 +94,11 @@ void mainboard_romstage_entry(struct romstage_params *rp) /* Both channels are always present. */ spd_content = get_spd_pointer(CBFS_SUBHEADER(spd_file), - ntohl(spd_file->len) / SPD_SIZE); + ntohl(spd_file->len) / SPD_SIZE, + &dual_channel); mp.mainboard.dram_data[0] = spd_content; - mp.mainboard.dram_data[1] = spd_content; + if (dual_channel) + mp.mainboard.dram_data[1] = spd_content; rp->mrc_params = ∓ romstage_common(rp); diff --git a/src/mainboard/google/rambi/spd/Makefile.inc b/src/mainboard/google/rambi/spd/Makefile.inc index 36f4b66823..fb0335fb5a 100644 --- a/src/mainboard/google/rambi/spd/Makefile.inc +++ b/src/mainboard/google/rambi/spd/Makefile.inc @@ -25,10 +25,14 @@ SPD_BIN = $(obj)/spd.bin # 0b001 - 4GiB total - 2 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz # 0b010 - 2GiB total - 2 x 1GiB Micron MT41K128M16JT-125:K 1600MHz # 0b011 - 2GiB total - 2 x 1GiB Hynix H5TC2G63FFR-PBA 1600MHz +# 0b100 - 2GiB total - 1 x 2GiB Micron MT41K256M16HA-125:E 1600MHz +# 0b101 - 2GiB total - 1 x 2GiB Hynix H5TC4G63AFR-PBA 1600MHz SPD_SOURCES = micron_2GiB_dimm_MT41K256M16HA-125 SPD_SOURCES += hynix_2GiB_dimm_H5TC4G63AFR-PBA SPD_SOURCES += micron_1GiB_dimm_MT41K128M16JT-125 SPD_SOURCES += hynix_1GiB_dimm_H5TC2G63FFR-PBA +SPD_SOURCES += micron_2GiB_dimm_MT41K256M16HA-125 +SPD_SOURCES += hynix_2GiB_dimm_H5TC4G63AFR-PBA SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex) -- cgit v1.2.3