From bf00401e8a4d58c2717ae0d9d45ea5a0114b0990 Mon Sep 17 00:00:00 2001 From: Shelley Chen Date: Mon, 22 Oct 2018 18:07:04 -0700 Subject: mb/google/poppy/variants/nami: Add field to identify single channel DDR Variants of Nami need to accommodate single channel DDR. Will use GPP_D10 on nami for identification. GPP_D10 will return 1 when device is using single channel DDR and 0 when using dual channel DDR. BUG=b:117194353 BRANCH=None TEST=dmidecode | grep Channel and make sure that the correct number of channels gets returned. Change-Id: If86ab2c5404c4e818ce496ea935227ab5e51730a Signed-off-by: Shelley Chen Reviewed-on: https://review.coreboot.org/29233 Tested-by: build bot (Jenkins) --- src/mainboard/google/poppy/romstage.c | 5 ++++- .../google/poppy/variants/baseboard/include/baseboard/variants.h | 3 +++ src/mainboard/google/poppy/variants/nami/gpio.c | 7 +++++-- src/mainboard/google/poppy/variants/nami/memory.c | 4 ++++ 4 files changed, 16 insertions(+), 3 deletions(-) (limited to 'src/mainboard/google/poppy') diff --git a/src/mainboard/google/poppy/romstage.c b/src/mainboard/google/poppy/romstage.c index bac1e17889..9de1602a1a 100644 --- a/src/mainboard/google/poppy/romstage.c +++ b/src/mainboard/google/poppy/romstage.c @@ -171,7 +171,10 @@ void mainboard_memory_init_params(FSPM_UPD *mupd) memcpy(&mem_cfg->RcompTarget, p.rcomp_target, p.rcomp_target_size); mem_cfg->MemorySpdPtr00 = mainboard_get_spd_data(p.type, p.use_sec_spd); - mem_cfg->MemorySpdPtr10 = mem_cfg->MemorySpdPtr00; + if (p.single_channel) + mem_cfg->MemorySpdPtr10 = 0; + else + mem_cfg->MemorySpdPtr10 = mem_cfg->MemorySpdPtr00; mem_cfg->MemorySpdDataLen = spd_info[p.type].len; mem_cfg->SaOcSupport = p.enable_sa_oc_support; diff --git a/src/mainboard/google/poppy/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/poppy/variants/baseboard/include/baseboard/variants.h index 31370aed2b..4c26d5e086 100644 --- a/src/mainboard/google/poppy/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/google/poppy/variants/baseboard/include/baseboard/variants.h @@ -60,6 +60,9 @@ struct memory_params { /* The voltage offset applied to the SA in mV. 1000(mV) = Maximum */ uint16_t sa_voltage_offset_val; + + /* This would be set to true if only have single DDR channel */ + bool single_channel; }; void variant_memory_params(struct memory_params *p); diff --git a/src/mainboard/google/poppy/variants/nami/gpio.c b/src/mainboard/google/poppy/variants/nami/gpio.c index 1a03c05f7d..d74986a5c1 100644 --- a/src/mainboard/google/poppy/variants/nami/gpio.c +++ b/src/mainboard/google/poppy/variants/nami/gpio.c @@ -179,8 +179,8 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NC(GPP_D8), /* D9 : ISH_SPI_CS# ==> HP_IRQ_GPIO */ PAD_CFG_GPI_APIC(GPP_D9, NONE, PLTRST), - /* D10 : ISH_SPI_CLK ==> SPKR_RST_L (unstuffed) */ - PAD_CFG_NC(GPP_D10), + /* D10 : ISH_SPI_CLK ==> SINGLE_CHANNEL */ + PAD_CFG_GPI_GPIO_DRIVER(GPP_D10, NONE, DEEP), /* D11 : ISH_SPI_MISO ==> DCI_CLK (debug header) */ PAD_CFG_NC(GPP_D11), /* D12 : ISH_SPI_MOSI ==> DCI_DATA (debug header) */ @@ -370,6 +370,9 @@ static const struct pad_config early_gpio_table[] = { /* E0 : SATAXPCI0 ==> H1_PCH_INT_ODL */ PAD_CFG_GPI_APIC_INVERT(GPP_E0, NONE, PLTRST), + + /* D10 : ISH_SPI_CLK ==> SINGLE_CHANNEL */ + PAD_CFG_GPI_GPIO_DRIVER(GPP_D10, 20K_PD, DEEP), }; const struct pad_config *variant_gpio_table(size_t *num) diff --git a/src/mainboard/google/poppy/variants/nami/memory.c b/src/mainboard/google/poppy/variants/nami/memory.c index 082b9a4417..b7f51851c7 100644 --- a/src/mainboard/google/poppy/variants/nami/memory.c +++ b/src/mainboard/google/poppy/variants/nami/memory.c @@ -89,4 +89,8 @@ void variant_memory_params(struct memory_params *p) else /* default to DDR4 */ fill_ddr4_memory_params(p); + + /* GPP_D10 set to 0 for dual channel and 1 for single channel */ + if (gpio_get(GPP_D10)) + p->single_channel = 1; } -- cgit v1.2.3