diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/reef/gpio.h | 18 | ||||
| -rw-r--r-- | src/mainboard/google/reef/romstage.c | 66 |
2 files changed, 72 insertions, 12 deletions
diff --git a/src/mainboard/google/reef/gpio.h b/src/mainboard/google/reef/gpio.h index 91e8bb10d9..14cf880cfd 100644 --- a/src/mainboard/google/reef/gpio.h +++ b/src/mainboard/google/reef/gpio.h @@ -243,8 +243,8 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI(GPIO_98, UP_20K, DEEP), /* FST_SPI_CS1_B -- unused */ PAD_CFG_NF(GPIO_99, NATIVE, DEEP, NF1), /* FST_SPI_MOSI_IO0 */ PAD_CFG_NF(GPIO_100, NATIVE, DEEP, NF1), /* FST_SPI_MISO_IO1 */ - PAD_CFG_GPI(GPIO_101, UP_20K, DEEP), /* FST_IO2 -- unused */ - PAD_CFG_GPI(GPIO_102, UP_20K, DEEP), /* FST_IO3 -- unused */ + PAD_CFG_GPI(GPIO_101, UP_20K, DEEP), /* FST_IO2 -- MEM_CONFIG0 */ + PAD_CFG_GPI(GPIO_102, UP_20K, DEEP), /* FST_IO3 -- MEM_CONFIG1 */ PAD_CFG_NF(GPIO_103, NATIVE, DEEP, NF1), /* FST_SPI_CLK */ /* SIO_SPI_0 - Used for FP */ @@ -312,7 +312,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI(GPIO_37, UP_20K, DEEP), /* unused */ /* LPSS_UART[0:2] */ - PAD_CFG_GPI(GPIO_38, UP_20K, DEEP), /* LPSS_UART0_RXD - unused */ + PAD_CFG_GPI(GPIO_38, UP_20K, DEEP), /* LPSS_UART0_RXD - MEM_CONFIG2*/ /* Next 2 are straps. */ PAD_CFG_GPI(GPIO_39, DN_20K, DEEP), /* LPSS_UART0_TXD - unused */ PAD_CFG_GPI(GPIO_40, DN_20K, DEEP), /* LPSS_UART0_RTS - unused */ @@ -320,7 +320,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NF(GPIO_42, NATIVE, DEEP, NF1), /* LPSS_UART1_RXD */ PAD_CFG_NF(GPIO_43, NATIVE, DEEP, NF1), /* LPSS_UART1_TXD */ PAD_CFG_NF(GPIO_44, NATIVE, DEEP, NF1), /* LPSS_UART1_RTS */ - PAD_CFG_NF(GPIO_45, NATIVE, DEEP, NF1), /* LPSS_UART1_CTS */ + PAD_CFG_GPI(GPIO_45, UP_20K, DEEP), /* LPSS_UART1_CTS - MEM_CONFIG3 */ PAD_CFG_NF(GPIO_46, NATIVE, DEEP, NF1), /* LPSS_UART2_RXD */ PAD_CFG_NF(GPIO_47, NATIVE, DEEP, NF1), /* LPSS_UART2_TXD */ PAD_CFG_GPI(GPIO_48, UP_20K, DEEP), /* LPSS_UART2_RTS - unused */ @@ -346,5 +346,15 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_GPI(GPIO_75, UP_20K, DEEP), /* I2S1_BCLK -- PCH_WP */ }; +/* + * The proto boards didn't have memory SKU pins, but the same ones can be + * utilized as post proto boards because the pins used were never connected + * or no peripheral utilized the signals on proto boards. + */ +#define MEM_CONFIG3 GPIO_45 +#define MEM_CONFIG2 GPIO_38 +#define MEM_CONFIG1 GPIO_102 +#define MEM_CONFIG0 GPIO_101 + #endif /* __ACPI__ */ #endif /* MAINBOARD_GPIO_H */ diff --git a/src/mainboard/google/reef/romstage.c b/src/mainboard/google/reef/romstage.c index ecf6fa502d..2c68b60d46 100644 --- a/src/mainboard/google/reef/romstage.c +++ b/src/mainboard/google/reef/romstage.c @@ -13,8 +13,10 @@ * GNU General Public License for more details. */ +#include <gpio.h> #include <soc/meminit.h> #include <soc/romstage.h> +#include "gpio.h" static const struct lpddr4_swizzle_cfg board_swizzle = { /* CH0_DQA[0:31] SoC pins -> U22 LPDDR4 module pins */ @@ -60,15 +62,63 @@ static const struct lpddr4_swizzle_cfg board_swizzle = { }, }; +/* + * Proto boards didn't have a memory SKU id. The configuration pins use + * an internal weak pullup with stronger pulldowns for the 0 bits. As + * proto boards didn't use the memory SKU pins the SKU id reads as 4'b1111, + * i.e. 15. + */ +#define PROTO_SKU 15 + +static const struct lpddr4_sku skus[] = { + /* K4F6E304HB-MGCJ - both logical channels */ + [0] = { + .speed = LP4_SPEED_2400, + .ch0_density = LP4_16Gb_DENSITY, + .ch1_density = LP4_16Gb_DENSITY, + }, + /* K4F8E304HB-MGCJ - both logical channels */ + [1] = { + .speed = LP4_SPEED_2400, + .ch0_density = LP4_8Gb_DENSITY, + .ch1_density = LP4_8Gb_DENSITY, + }, + /* MT53B512M32D2NP-062WT:C - both logical channels */ + [2] = { + .speed = LP4_SPEED_2400, + .ch0_density = LP4_16Gb_DENSITY, + .ch1_density = LP4_16Gb_DENSITY, + /* MT53B256M32D1NP-062 WT:C - both logical channels */ + }, + [3] = { + .speed = LP4_SPEED_2400, + .ch0_density = LP4_8Gb_DENSITY, + .ch1_density = LP4_8Gb_DENSITY, + }, + /* K4F8E304HB-MGCH - both logical channels */ + [PROTO_SKU] = { + .speed = LP4_SPEED_2400, + .ch0_density = LP4_8Gb_DENSITY, + .ch1_density = LP4_8Gb_DENSITY, + }, +}; + +static const struct lpddr4_cfg lp4cfg = { + .skus = skus, + .num_skus = ARRAY_SIZE(skus), + .swizzle_config = &board_swizzle, +}; + void mainboard_memory_init_params(struct FSPM_UPD *memupd) { - struct FSP_M_CONFIG *cfg = &memupd->FspmConfig; + int mem_sku; + gpio_t pads[] = { MEM_CONFIG3, MEM_CONFIG2, MEM_CONFIG1, MEM_CONFIG0 }; + + /* + * Read memory SKU id with internal pullups enabled to handle + * proto boards with no SKU id pins. + */ + mem_sku = gpio_pullup_base2_value(pads, ARRAY_SIZE(pads)); - /* Use a default 2400 speed. */ - meminit_lpddr4(cfg, LP4_SPEED_2400); - /* Enable both logical channels with a 8Gb density. */ - meminit_lpddr4_enable_channel(cfg, LP4_LCH0, LP4_8Gb_DENSITY, - &board_swizzle); - meminit_lpddr4_enable_channel(cfg, LP4_LCH1, LP4_8Gb_DENSITY, - &board_swizzle); + meminit_lpddr4_by_sku(&memupd->FspmConfig, &lp4cfg, mem_sku); } |