nb/intel/sandybridge/raminit: Reset internal state on fallback attempts
Some methods like discover_402x assume an clear state. Should fix fallback attempt raminit failures. Change-Id: I7a6fe044c17f5e0dbfa0e9b9d2aed0c3b6ae3972 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/17471 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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@ -4225,8 +4225,6 @@ static void init_dram_ddr3(int mobile, int min_tck, int s3resume)
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halt();
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}
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memset(&ctrl, 0, sizeof(ctrl));
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early_pch_init_native();
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early_thermal_init();
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@ -4275,6 +4273,8 @@ static void init_dram_ddr3(int mobile, int min_tck, int s3resume)
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}
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}
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if (!fast_boot) {
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/* Reset internal state */
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memset(&ctrl, 0, sizeof(ctrl));
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ctrl.mobile = mobile;
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ctrl.tCK = min_tck;
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@ -4291,6 +4291,11 @@ static void init_dram_ddr3(int mobile, int min_tck, int s3resume)
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printk(BIOS_ERR, "RAM training failed, trying fallback.\n");
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printram("Disable failing channel.\n");
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/* Reset internal state */
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memset(&ctrl, 0, sizeof(ctrl));
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ctrl.mobile = mobile;
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ctrl.tCK = min_tck;
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/* Reset DDR3 frequency */
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dram_find_spds_ddr3(spds, &ctrl);
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