diff options
| author | Huayang Duan <huayang.duan@mediatek.com> | 2018-09-26 15:37:58 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-11-05 09:13:20 +0000 |
| commit | 6c36d151a81dbfa1f1e2a5d47dd87f2e53534bc7 (patch) | |
| tree | 9ccdc66db79f06485be176c71151051199b89864 /src/soc/mediatek/mt8183/include | |
| parent | 392d69957038b26ce1de5c3a88bb0828fec4c0d4 (diff) | |
mediatek/mt8183: Add DDR driver of software impedance part
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui, and inits DRAM successfully with related
patches.
Change-Id: I42a33ffb66ffa2f938f85484ffc3a0d3788816b3
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Reviewed-on: https://review.coreboot.org/28837
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Diffstat (limited to 'src/soc/mediatek/mt8183/include')
| -rw-r--r-- | src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h b/src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h index ecdff82bc8..e4300891ec 100644 --- a/src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h +++ b/src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h @@ -39,6 +39,11 @@ #define DRAMC_BROADCAST_OFF 0x0 #define MAX_BACKUP_REG_CNT 32 +#define IMP_LP4X_TERM_VREF_SEL 0x1b +#define IMP_DRVP_LP4X_UNTERM_VREF_SEL 0x1a +#define IMP_DRVN_LP4X_UNTERM_VREF_SEL 0x16 +#define IMP_TRACK_LP4X_UNTERM_VREF_SEL 0x1a + enum dram_te_op { TE_OP_WRITE_READ_CHECK = 0, TE_OP_READ_CHECK @@ -133,4 +138,5 @@ void dramc_get_rank_size(u64 *dram_rank_size); void dramc_set_broadcast(u32 onoff); u32 dramc_get_broadcast(void); void dramc_init(void); +void dramc_sw_impedance(const struct sdram_params *params); #endif /* _DRAMC_PI_API_MT8183_H */ |