/* SPDX-License-Identifier: GPL-2.0-only */
/*
* longhaul.h
* (C) 2003 Dave Jones.
*
* VIA-specific information
*/
union msr_bcr2 {
struct {
unsigned Reseved:19, // 18:0
ESOFTBF:1, // 19
Reserved2:3, // 22:20
CLOCKMUL:4, // 26:23
Reserved3:5; // 31:27
} bits;
unsigned long val;
};
union msr_longhaul {
struct {
unsigned RevisionID:4, // 3:0
RevisionKey:4, // 7:4
EnableSoftBusRatio:1, // 8
EnableSoftVID:1, // 9
EnableSoftBSEL:1, // 10
Reserved:3, // 11:13
SoftBusRatio4:1, // 14
VRMRev:1, // 15
SoftBusRatio:4, // 19:16
SoftVID:5, // 24:20
Reserved2:3, // 27:25
SoftBSEL:2, // 29:28
Reserved3:2, // 31:30
MaxMHzBR:4, // 35:32
MaximumVID:5, // 40:36
MaxMHzFSB:2, // 42:41
MaxMHzBR4:1, // 43
Reserved4:4, // 47:44
MinMHzBR:4, // 51:48
MinimumVID:5, // 56:52
MinMHzFSB:2, // 58:57
MinMHzBR4:1, // 59
Reserved5:4; // 63:60
} bits;
unsigned long long val;
};
/*
* Clock ratio tables. Div/Mod by 10 to get ratio.
* The eblcr values specify the ratio read from the CPU.
* The mults values specify what to write to the CPU.
*/
/*
* VIA C3 Samuel 1 & Samuel 2 (stepping 0)
*/
static const int samuel1_mults[16] = {
-1, /* 0000 -> RESERVED */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
-1, /* 0011 -> RESERVED */
-1, /* 0100 -> RESERVED */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
55, /* 0111 -> 5.5x */
60, /* 1000 -> 6.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
50, /* 1011 -> 5.0x */
65, /* 1100 -> 6.5x */
75, /* 1101 -> 7.5x */
-1, /* 1110 -> RESERVED */
-1, /* 1111 -> RESERVED */
};
static const int samuel1_eblcr[16] = {
50, /* 0000 -> RESERVED */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
-1, /* 0011 -> RESERVED */
55, /* 0100 -> 5.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
-1, /* 0111 -> RESERVED */
-1, /* 1000 -> RESERVED */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
60, /* 1011 -> 6.0x */
-1, /* 1100 -> RESERVED */
75, /* 1101 -> 7.5x */
-1, /* 1110 -> RESERVED */
65, /* 1111 -> 6.5x */
};
/*
* VIA C3 Samuel2 Stepping 1->15
*/
static const int samuel2_eblcr[16] = {
50, /* 0000 -> 5.0x */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
100, /* 0011 -> 10.0x */
55, /* 0100 -> 5.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
110, /* 0111 -> 11.0x */
90, /* 1000 -> 9.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
60, /* 1011 -> 6.0x */
120, /* 1100 -> 12.0x */
75, /* 1101 -> 7.5x */
130, /* 1110 -> 13.0x */
65, /* 1111 -> 6.5x */
};
/*
* VIA C3 Ezra
*/
static const int ezra_mults[16] = {
100, /* 0000 -> 10.0x */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
90, /* 0011 -> 9.0x */
95, /* 0100 -> 9.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
55, /* 0111 -> 5.5x */
60, /* 1000 -> 6.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
50, /* 1011 -> 5.0x */
65, /* 1100 -> 6.5x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
120, /* 1111 -> 12.0x */
};
static const int ezra_eblcr[16] = {
50, /* 0000 -> 5.0x */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
100, /* 0011 -> 10.0x */
55, /* 0100 -> 5.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
95, /* 0111 -> 9.5x */
90, /* 1000 -> 9.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
60, /* 1011 -> 6.0x */
120, /* 1100 -> 12.0x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
65, /* 1111 -> 6.5x */
};
/*
* VIA C3 (Ezra-T) [C5M].
*/
static const int ezrat_mults[32] = {
100, /* 0000 -> 10.0x */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
90, /* 0011 -> 9.0x */
95, /* 0100 -> 9.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
55, /* 0111 -> 5.5x */
60, /* 1000 -> 6.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
50, /* 1011 -> 5.0x */
65, /* 1100 -> 6.5x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
120, /* 1111 -> 12.0x */
-1, /* 0000 -> RESERVED (10.0x) */
110, /* 0001 -> 11.0x */
-1, /* 0010 -> 12.0x */
-1, /* 0011 -> RESERVED (9.0x)*/
105, /* 0100 -> 10.5x */
115, /* 0101 -> 11.5x */
125, /* 0110 -> 12.5x */
135, /* 0111 -> 13.5x */
140, /* 1000 -> 14.0x */
150, /* 1001 -> 15.0x */
160, /* 1010 -> 16.0x */
130, /* 1011 -> 13.0x */
145, /* 1100 -> 14.5x */
155, /* 1101 -> 15.5x */
-1, /* 1110 -> RESERVED (13.0x) */
-1, /* 1111 -> RESERVED (12.0x) */
};
static const int ezrat_eblcr[32] = {
50, /* 0000 -> 5.0x */
30, /* 0001 -> 3.0x */
40, /* 0010 -> 4.0x */
100, /* 0011 -> 10.0x */
55, /* 0100 -> 5.5x */
35, /* 0101 -> 3.5x */
45, /* 0110 -> 4.5x */
95, /* 0111 -> 9.5x */
90, /* 1000 -> 9.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
60, /* 1011 -> 6.0x */
120, /* 1100 -> 12.0x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
65, /* 1111 -> 6.5x */
-1, /* 0000 -> RESERVED (9.0x) */
110, /* 0001 -> 11.0x */
120, /* 0010 -> 12.0x */
-1, /* 0011 -> RESERVED (10.0x)*/
135, /* 0100 -> 13.5x */
115, /* 0101 -> 11.5x */
125, /* 0110 -> 12.5x */
105, /* 0111 -> 10.5x */
130, /* 1000 -> 13.0x */
150, /* 1001 -> 15.0x */
160, /* 1010 -> 16.0x */
140, /* 1011 -> 14.0x */
-1, /* 1100 -> RESERVED (12.0x) */
155, /* 1101 -> 15.5x */
-1, /* 1110 -> RESERVED (13.0x) */
145, /* 1111 -> 14.5x */
};
/*
* VIA C3 Nehemiah */
static const int nehemiah_mults[32] = {
100, /* 0000 -> 10.0x */
-1, /* 0001 -> 16.0x */
40, /* 0010 -> 4.0x */
90, /* 0011 -> 9.0x */
95, /* 0100 -> 9.5x */
-1, /* 0101 -> RESERVED */
45, /* 0110 -> 4.5x */
55, /* 0111 -> 5.5x */
60, /* 1000 -> 6.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
50, /* 1011 -> 5.0x */
65, /* 1100 -> 6.5x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
120, /* 1111 -> 12.0x */
-1, /* 0000 -> 10.0x */
110, /* 0001 -> 11.0x */
-1, /* 0010 -> 12.0x */
-1, /* 0011 -> 9.0x */
105, /* 0100 -> 10.5x */
115, /* 0101 -> 11.5x */
125, /* 0110 -> 12.5x */
135, /* 0111 -> 13.5x */
140, /* 1000 -> 14.0x */
150, /* 1001 -> 15.0x */
160, /* 1010 -> 16.0x */
130, /* 1011 -> 13.0x */
145, /* 1100 -> 14.5x */
155, /* 1101 -> 15.5x */
-1, /* 1110 -> RESERVED (13.0x) */
-1, /* 1111 -> 12.0x */
};
static const int nehemiah_eblcr[32] = {
50, /* 0000 -> 5.0x */
160, /* 0001 -> 16.0x */
40, /* 0010 -> 4.0x */
100, /* 0011 -> 10.0x */
55, /* 0100 -> 5.5x */
-1, /* 0101 -> RESERVED */
45, /* 0110 -> 4.5x */
95, /* 0111 -> 9.5x */
90, /* 1000 -> 9.0x */
70, /* 1001 -> 7.0x */
80, /* 1010 -> 8.0x */
60, /* 1011 -> 6.0x */
120, /* 1100 -> 12.0x */
75, /* 1101 -> 7.5x */
85, /* 1110 -> 8.5x */
65, /* 1111 -> 6.5x */
90, /* 0000 -> 9.0x */
110, /* 0001 -> 11.0x */
120, /* 0010 -> 12.0x */
100, /* 0011 -> 10.0x */
135, /* 0100 -> 13.5x */
115, /* 0101 -> 11.5x */
125, /* 0110 -> 12.5x */
105, /* 0111 -> 10.5x */
130, /* 1000 -> 13.0x */
150, /* 1001 -> 15.0x */
160, /* 1010 -> 16.0x */
140, /* 1011 -> 14.0x */
120, /* 1100 -> 12.0x */
155, /* 1101 -> 15.5x */
-1, /* 1110 -> RESERVED (13.0x) */
145 /* 1111 -> 14.5x */
};
/*
* Voltage scales. Div/Mod by 1000 to get actual voltage.
* Which scale to use depends on the VRM type in use.
*/
struct mV_pos {
unsigned short mV;
unsigned short pos;
};
static const struct mV_pos vrm85_mV[32] = {
{1250, 8}, {1200, 6}, {1150, 4}, {1100, 2},
{1050, 0}, {1800, 30}, {1750, 28}, {1700, 26},
{1650, 24}, {1600, 22}, {1550, 20}, {1500, 18},
{1450, 16}, {1400, 14}, {1350, 12}, {1300, 10},
{1275, 9}, {1225, 7}, {1175, 5}, {1125, 3},
{1075, 1}, {1825, 31}, {1775, 29}, {1725, 27},
{1675, 25}, {1625, 23}, {1575, 21}, {1525, 19},
{1475, 17}, {1425, 15}, {1375, 13}, {1325, 11}
};
static const unsigned char mV_vrm85[32] = {
0x04, 0x14, 0x03, 0x13, 0x02, 0x12, 0x01, 0x11,
0x00, 0x10, 0x0f, 0x1f, 0x0e, 0x1e, 0x0d, 0x1d,
0x0c, 0x1c, 0x0b, 0x1b, 0x0a, 0x1a, 0x09, 0x19,
0x08, 0x18, 0x07, 0x17, 0x06, 0x16, 0x05, 0x15
};
static const struct mV_pos mobilevrm_mV[32] = {
{1750, 31}, {1700, 30}, {1650, 29}, {1600, 28},
{1550, 27}, {1500, 26}, {1450, 25}, {1400, 24},
{1350, 23}, {1300, 22}, {1250, 21}, {1200, 20},
{1150, 19}, {1100, 18}, {1050, 17}, {1000, 16},
{975, 15}, {950, 14}, {925, 13}, {900, 12},
{875, 11}, {850, 10}, {825, 9}, {800, 8},
{775, 7}, {750, 6}, {725, 5}, {700, 4},
{675, 3}, {650, 2}, {625, 1}, {600, 0}
};
static const unsigned char mV_mobilevrm[32] = {
0x1f, 0x1e, 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18,
0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10,
0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08,
0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00
};