diff options
Diffstat (limited to 'src/soc/mediatek/mt8183')
| -rw-r--r-- | src/soc/mediatek/mt8183/emi.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/emi.c b/src/soc/mediatek/mt8183/emi.c index 4b08a10c08..c644dc3f96 100644 --- a/src/soc/mediatek/mt8183/emi.c +++ b/src/soc/mediatek/mt8183/emi.c @@ -19,6 +19,7 @@ #include <soc/dramc_register.h> #include <soc/emi.h> #include <soc/infracfg.h> +#include <soc/mt6358.h> static const u8 freq_shuffle[DRAM_DFS_SHUFFLE_MAX] = { [DRAM_DFS_SHUFFLE_1] = LP4X_DDR3200, @@ -39,6 +40,13 @@ u32 frequency_table[LP4X_DDRFREQ_MAX] = { [LP4X_DDR3600] = 3600, }; +static const u32 vcore_lp4x[LP4X_DDRFREQ_MAX] = { + [LP4X_DDR1600] = 725000, + [LP4X_DDR2400] = 725000, + [LP4X_DDR3200] = 762500, + [LP4X_DDR3600] = 800000, +}; + struct emi_regs *emi_regs = (void *)EMI_BASE; const u8 phy_mapping[CHANNEL_MAX][16] = { [CHANNEL_A] = { @@ -180,6 +188,24 @@ static void global_option_init(const struct sdram_params *params) set_MRR_pinmux_mapping(); } +static void set_vcore_voltage(u8 freq_group) +{ + const u32 vcore = vcore_lp4x[freq_group]; + dramc_dbg("Set DRAM voltage (freq %d): vcore = %u\n", + frequency_table[freq_group], vcore); + pmic_set_vcore_vol(vcore); +} + +static void set_vdram1_vddq_voltage(void) +{ + const u32 vdram1 = 1125000; + const u32 vddq = 600000; + dramc_dbg("Set DRAM voltage: vdram1 = %u, vddq = %u\n", + vdram1, vddq); + pmic_set_vdram1_vol(vdram1); + pmic_set_vddq_vol(vddq); +} + static void emi_esl_setting1(void) { dramc_set_broadcast(DRAMC_BROADCAST_ON); @@ -373,6 +399,8 @@ int mt_set_emi(const struct dramc_param *dparam) current_freqsel = freq_tbl[shuffle]; params = &dparam->freq_params[shuffle]; + set_vcore_voltage(current_freqsel); + set_vdram1_vddq_voltage(); init_dram(params, current_freqsel); if (do_calib(params, current_freqsel) != 0) return -1; |