diff options
| author | Shelley Chen <shchen@google.com> | 2018-10-22 18:07:04 -0700 |
|---|---|---|
| committer | Shelley Chen <shchen@google.com> | 2018-10-29 16:49:43 +0000 |
| commit | bf00401e8a4d58c2717ae0d9d45ea5a0114b0990 (patch) | |
| tree | 0e47b40612ca4b79d09e6f9426530622eedeb00d /src/mainboard/google/poppy/variants | |
| parent | 6cc937e687d8761bcdf26a0b5a122c392238d10c (diff) | |
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 <shchen@google.com>
Reviewed-on: https://review.coreboot.org/29233
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/poppy/variants')
3 files changed, 12 insertions, 2 deletions
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; } |