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path: root/src/soc/intel/xeon_sp/spr/ddr.c
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/* SPDX-License-Identifier: GPL-2.0-or-later */

#include <soc/ddr.h>

unsigned int get_ddr_millivolt(unsigned int ddr_voltage)
{
	switch (ddr_voltage) {
	case SPD_VDD_DDR4:
		return 1200;
	case SPD_VDD_DDR5:
		return 1100;
	default:
		return 0;
	}
}

unsigned int get_max_memory_speed(unsigned int commonTck)
{
	if (commonTck <= DDR_8400_TCK_MIN)
		return 8400;
	else if (commonTck <= DDR_7600_TCK_MIN)
		return 7600;
	else if (commonTck <= DDR_7200_TCK_MIN)
		return 7200;
	else if (commonTck <= DDR_6800_TCK_MIN)
		return 6800;
	else if (commonTck <= DDR_6400_TCK_MIN)
		return 6400;
	else if (commonTck <= DDR_6000_TCK_MIN)
		return 6000;
	else if (commonTck <= DDR_5600_TCK_MIN)
		return 5600;
	else if (commonTck <= DDR_5200_TCK_MIN)
		return 5200;
	else if (commonTck <= DDR_4800_TCK_MIN)
		return 4800;
	else if (commonTck <= DDR_4400_TCK_MIN)
		return 4400;
	else if (commonTck <= DDR_4266_TCK_MIN)
		return 4266;
	else if (commonTck <= DDR_4200_TCK_MIN)
		return 4200;
	else if (commonTck <= DDR_4000_TCK_MIN)
		return 4000;
	else if (commonTck <= DDR_3800_TCK_MIN)
		return 3800;
	else if (commonTck <= DDR_3733_TCK_MIN)
		return 3733;
	else if (commonTck <= DDR_3600_TCK_MIN)
		return 3600;
	else if (commonTck <= DDR_3466_TCK_MIN)
		return 3466;
	else if (commonTck <= DDR_3400_TCK_MIN)
		return 3400;
	else if (commonTck <= DDR_3200_TCK_MIN)
		return 3200;
	else if (commonTck <= DDR_3000_TCK_MIN)
		return 3000;
	else if (commonTck <= DDR_2933_TCK_MIN)
		return 2933;
	else if (commonTck <= DDR_2800_TCK_MIN)
		return 2800;
	else if (commonTck <= DDR_2666_TCK_MIN)
		return 2666;
	else if (commonTck <= DDR_2600_TCK_MIN)
		return 2600;
	else if (commonTck <= DDR_2400_TCK_MIN)
		return 2400;
	else if (commonTck <= DDR_2200_TCK_MIN)
		return 2200;
	else if (commonTck <= DDR_2133_TCK_MIN)
		return 2133;
	else if (commonTck <= DDR_2000_TCK_MIN)
		return 2000;
	else if (commonTck <= DDR_1866_TCK_MIN)
		return 1866;
	else if (commonTck <= DDR_1800_TCK_MIN)
		return 1800;
	else if (commonTck <= DDR_1600_TCK_MIN)
		return 1600;
	else if (commonTck <= DDR_1400_TCK_MIN)
		return 1400;
	else if (commonTck <= DDR_1333_TCK_MIN)
		return 1333;
	else if (commonTck <= DDR_1200_TCK_MIN)
		return 1200;
	else if (commonTck <= DDR_1066_TCK_MIN)
		return 1066;
	else if (commonTck <= DDR_1000_TCK_MIN)
		return 1000;
	else
		return 800;
}