diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2015-08-22 11:10:22 +0530 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-08-25 18:56:52 +0000 |
| commit | e5e9439715c738f8e4217aa5c03d90b3b9d4e9db (patch) | |
| tree | cb92dc61c89082852c06090b2188571c816f1272 /src/mainboard | |
| parent | 51ee7ce3eacb4a58d9a806211c1739c3ff1fb8ee (diff) | |
google/cyan: Support reading Memory strap GPIOs to select SPD
Cherry-pick from Chromium commit 8f63720.
SoC GPIO to read Memory strap not getting configured
correctly causing incorrect RAMID read during ROMSTAGE
TEST=Build and boot the platform with differnt Memory type and
read RAMID correctly inside spd.c
RAMID = 0 => 4GB Samsung Memory
RAMID = 1 => 4GB Hynix Memory
RAMID = 2 => 2GB Samsung Memory
RAMID = 3 => 2GB Hynix Memory
Original-Change-Id: Ide9d4b5f73565cddd74cedf7afe4b7d168dde74c
Original-Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: If2ba9ec5be111b9c30360ffde41a2c644a69ecae
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21166
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/cyan/spd/spd.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/src/mainboard/google/cyan/spd/spd.c b/src/mainboard/google/cyan/spd/spd.c index c2e9e79c3b..a87aaaecff 100644 --- a/src/mainboard/google/cyan/spd/spd.c +++ b/src/mainboard/google/cyan/spd/spd.c @@ -17,6 +17,7 @@ #include <cbfs.h> #include <cbmem.h> #include <console/console.h> +#include <gpio.h> #include <lib.h> #include <memory_info.h> #include <smbios.h> @@ -26,10 +27,6 @@ #include <string.h> #define SPD_SIZE 256 -#define SATA_GP3_PAD_CFG0 0x5828 -#define I2C3_SCL_PAD_CFG0 0x5438 -#define MF_PLT_CLK1_PAD_CFG0 0x4410 -#define I2C3_SDA_PAD_CFG0 0x5420 /* * 0b0000 - 4GiB total - 2 x 2GiB Samsung K4B4G1646Q-HYK0 1600MHz @@ -39,22 +36,18 @@ */ static const uint32_t dual_channel_config = (1 << 0) | (1 << 1); -static void configure_ramid_gpios(void) -{ - write32((void *)(COMMUNITY_GPSOUTHWEST_BASE + SATA_GP3_PAD_CFG0), - (PAD_PULL_DISABLE | PAD_GPIO_ENABLE | PAD_CONFIG0_GPI_DEFAULT)); - write32((void *)(COMMUNITY_GPSOUTHEAST_BASE + MF_PLT_CLK1_PAD_CFG0), - (PAD_PULL_DISABLE | PAD_GPIO_ENABLE | PAD_CONFIG0_GPI_DEFAULT)); -} - static void *get_spd_pointer(char *spd_file_content, int total_spds, int *dual) { int ram_id = 0; - ram_id |= get_gpio(COMMUNITY_GPSOUTHWEST_BASE, SATA_GP3_PAD_CFG0) << 0; - ram_id |= get_gpio(COMMUNITY_GPSOUTHWEST_BASE, I2C3_SCL_PAD_CFG0) << 1; - ram_id |= get_gpio(COMMUNITY_GPSOUTHEAST_BASE, MF_PLT_CLK1_PAD_CFG0) - << 2; - ram_id |= get_gpio(COMMUNITY_GPSOUTHWEST_BASE, I2C3_SDA_PAD_CFG0) << 3; + + gpio_t spd_gpios[] = { + GP_SW_80, /* SATA_GP3,RAMID0 */ + GP_SW_67, /* I2C3_SCL,RAMID1 */ + GP_SE_02, /* MF_PLT_CLK1, RAMID2 */ + GP_SW_64, /* I2C3_SDA RAMID3 */ + }; + + ram_id = gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)); printk(BIOS_DEBUG, "ram_id=%d, total_spds: %d\n", ram_id, total_spds); if (ram_id >= total_spds) return NULL; @@ -66,10 +59,14 @@ static void *get_spd_pointer(char *spd_file_content, int total_spds, int *dual) /* Display the RAM type */ switch (ram_id) { case 0: + printk(BIOS_DEBUG, "4GiB Samsung K4B4G1646Q-HYK0 1600MHz\n"); + break; case 2: printk(BIOS_DEBUG, "2GiB Samsung K4B4G1646Q-HYK0 1600MHz\n"); break; case 1: + printk(BIOS_DEBUG, "4GiB Hynix H5TC4G63CFR-PBA 1600MHz\n"); + break; case 3: printk(BIOS_DEBUG, "2GiB Hynix H5TC4G63CFR-PBA 1600MHz\n"); break; @@ -96,8 +93,6 @@ void mainboard_fill_spd_data(struct pei_data *ps) if (spd_file_len < SPD_SIZE) die("Missing SPD data."); - configure_ramid_gpios(); - /* * Both channels are always present in SPD data. Always use matched * DIMMs so use the same SPD data for each DIMM. |