init/lpddr4: modify pull-down drive strength to improve signal quality
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@ -456,6 +456,7 @@ def get_lpddr4_phy_init_sequence(phy_settings, timing_settings):
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bl = 16
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bl = 16
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dq_odt = "RZQ/2"
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dq_odt = "RZQ/2"
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ca_odt = "RZQ/2"
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ca_odt = "RZQ/2"
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pull_down_drive_strength = "RZQ/3"
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def get_nwr():
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def get_nwr():
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frequency_ranges = [ # Table 28. Frequency Ranges for RL, WL, nWR, and nRTP Settings
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frequency_ranges = [ # Table 28. Frequency Ranges for RL, WL, nWR, and nRTP Settings
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@ -575,7 +576,7 @@ def get_lpddr4_phy_init_sequence(phy_settings, timing_settings):
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(0, 1, 1),
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(0, 1, 1),
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(1, 1, 0),
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(1, 1, 0),
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(2, 1, 0),
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(2, 1, 0),
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(3, 3, odt_map["RZQ/6"]),
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(3, 3, odt_map[pull_down_drive_strength]),
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(6, 1, 0),
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(6, 1, 0),
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(7, 1, 0),
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(7, 1, 0),
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])
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])
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