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Memory auto detection support. 

Add memory auto detection function.

There are 8 slots in the dawning board. And only two slots could work with
this function.

Target: Bonito3adawning
master
Sun Zhi 14 years ago
committed by LIU Qi
parent
a8333c2769
commit
91f9ed04c0
4 changed files with 1288 additions and 439 deletions
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  1. 739
      Targets/Bonito3adawning/Bonito/i2c.S
  2. 879
      Targets/Bonito3adawning/Bonito/loongson3_ddr2_config.S
  3. 102
      Targets/Bonito3adawning/Bonito/start.S
  4. 3
      Targets/Bonito3adawning/conf/Bonito.3adawning

739
Targets/Bonito3adawning/Bonito/i2c.S
View File

@ -1,25 +1,450 @@
#define BONITO_HTIO_BASE_VA 0x90000efdfc000000
#define CHIP1_BASE_ADDRESS 0x0000100000000000
#define CHIP2_BASE_ADDRESS 0x0000200000000000
#define CHIP3_BASE_ADDRESS 0x0000300000000000
#define SPD_NODEVICE 0xff
#define SPD_TYPEDDR2 0x8
#define SPD_TYPEDDR3 0xc
#define DDRTYPE_MASK 0x7
#define DDRPERSZ_512M 0x10
#define DDRPERSZ_1G 0x20
#define DDRPERSZ_2G 0x30
#define SPD_MEMTYPE_OFFSET 0x02
#define SPD_ROWADDR_OFFSET 0x03
#define SPD_COLADDR_OFFSET 0x04
#define SPD_DIMRANK_OFFSET 0x11
#define SPD_RKDESITY_OFFSET 0x1f
#define SPD_DDR2SIZE_512M 0x80
#define SPD_DDR2SIZE_1G 0x01
#define SPD_DDR2SIZE_2G 0x02
#define DDR2SIZE_512M_MASK 0x10
#define DDR2SIZE_1G_MASK 0x20
#define DDR2SIZE_2G_MASK 0x30
#define DDR2SIZE_MASK 0x70
#ifndef MULTI_CHIP
LEAF(i2cread)
addu a0,a0,1
ori a0,a0,1
/* set device address */
//li v0, 0xbfd00000 + SMBUS_HOST_ADDRESS
li v0, BONITO_PCIIO_BASE_VA + SMBUS_HOST_ADDRESS
dli v0, BONITO_HTIO_BASE_VA + SMBUS_HOST_ADDRESS
sb a0, 0(v0);
/* store register offset */
//li v0, 0xbfd00000 + SMBUS_HOST_COMMAND
dli v0, BONITO_HTIO_BASE_VA + SMBUS_HOST_COMMAND
sb a1, 0(v0);
/* read byte data protocol */
li v0, 0x08
//li v1, 0xbfd00000 + SMBUS_HOST_CONTROL
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_CONTROL
sb v0, 0(v1);
/* make sure SMB host ready to start, important!--zfx */
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
lbu v0, 0(v1)
andi v0,v0, 0x1f
beqz v0,1f
nop
sb v0, 0(v1)
lbu v0, 0(v1) #flush the write
1:
/* start */
//li v1, 0xbfd00000 + SMBUS_HOST_CONTROL
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_CONTROL
lbu v0, 0(v1)
ori v0, v0, 0x40
sb v0, 0(v1);
/* wait */
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
1:
#if 0
/* delay */
li a0, 0x1000
2:
bnez a0,2b
addiu a0, -1
#endif
lbu v0, 0(v1)
andi v0, SMBUS_HOST_STATUS_BUSY
bnez v0, 1b #IDEL ?
nop
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
lbu v0, 0(v1)
andi v0,v0, 0x1f
beqz v0,1f
nop
sb v0, 0(v1) #reset
lbu v0, 0(v1) #flush the write
1:
//li v1, 0xbfd00000 + SMBUS_HOST_DATA0
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_DATA0
lbu v0, 0(v1)
jr ra
nop
END(i2cread)
LEAF(PROBE_DIMM)
move a3,ra;
move s2,a0; //store a0: i2C DEVICE id
move s3,a1; //store a1: REG offset in i2c dev
li a1, 2;
bal i2cread;
nop;
beq v0,SPD_NODEVICE, out;
nop;
/* set DDR type @ s1[7:7] */
/* assumed here v0 should be 0xc or 0x8 */
//bne v0,SPD_TYPEDDR3, ddr2
andi v0,0x4;
srl v0,0x2;
sll v0,DDRTYPE_MASK ;
or s1,v0;
/* set CONTROLLER_SELECT@ s1[3:2] */
/* a1 should set to be MC0_USED or MC1_USD */
/* Firt check whether BOTH MC0 and MC1 used, if
true,set s1[3:2] = 2b'00
*/
or s1,s3;
andi t1,s1,0xc;
bne t1,0xc,10f;
nop
subu s1,0xc
10:
/* set SIZE_PER_CONTROLLE @ s1[6:4] */
/* step 1: read out number of DIMMS Ranks(CS) */
move a0, s2; //store a1: REG offset in i2c dev
li a1, 5;
bal i2cread;
nop;
andi v0,0x3; // MASK for DIMMS Ranks(CS)
move t2,v0;
//bez t2,out
nop
addi t2,0x1
/* step 2: read out DIMMS size */
move a0,s2;
li a1, 31;
bal i2cread;
nop;
bne v0,SPD_DDR2SIZE_512M, 11f;
nop;
//ori s1,DDR2SIZE_512M_MASK;
li v0, 0x20000000
b 1f;
nop;
11:
bne v0,SPD_DDR2SIZE_1G, 12f;
nop;
//ori s1,DDR2SIZE_1G_MASK;
li v0, 0x40000000
b 1f;
nop;
12:
bne v0,SPD_DDR2SIZE_2G, 1f;
nop;
//ori s1,DDR2SIZE_2G_MASK; // v0: 0x80 means 1G
li v0, 0x80000000;
1:
/* step 3: calculate each mem SIZE of one slot*/
beq t2,0x1,21f;
nop
sll v0,0x1
//multu v0,t2;
21:
bne v0,0x20000000, 13f
nop;
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_512M
else: do nothing, don't set PERSIZE_BIT
// defalut setting 512M leaset MEM size
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,211f;
nop
bleu t1,DDR2SIZE_512M_MASK, 15f;
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
211:
ori s1,DDRPERSZ_512M ;
b 15f;
nop
13:
bne v0,0x40000000, 14f
nop
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_1G
else: do nothing, don't set PERSIZE_BIT
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,131f;
nop
bleu t1, DDR2SIZE_1G_MASK,15f
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
131:
ori s1,DDRPERSZ_1G;
b 15f;
nop
14:/* only support 512M,1G,2G per DIMM now */
bne v0,0x80000000, 15f
nop
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_2G
else: do nothing, don't set PERSIZE_BIT
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,141f;
nop
bleu t1, DDR2SIZE_2G_MASK,15f
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
141:
ori s1,DDRPERSZ_2G;
15:
/* check whether MC0 or MC1 used to set CS_MAP */
bne s3, MC0_USED, 2f;
nop;
/* set DDR MC0_CS_MAP @s1[11:8] */
ori s1, 0x400 // at leaset one bit is selected
move a0,s2;
li a1, 5;
bal i2cread;
nop;
andi v0,0x1;
beq v0,0x0,16f;
nop;
ori s1,0x800;
16:
/* set DDR MC0_COL_SIZE @s1[18:16] */
move a0,s2;
li a1, 4;
bal i2cread;
nop;
li t0,14;
sub t0,v0;
sll t0,0x10;
or s1,t0;
/* set MC0_EIGHT_BANK @s1[19] */
move a0,s2;
li a1, 17;
bal i2cread;
nop;
andi v0,0x8;
srl v0,0x3;
sll v0,0x13; //MC0_EIGHT_BANK shift
or s1,v0;
/* set DDR MC0_ROW_SIZE @s1[22:20] */
move a0,s2;
li a1, 3;
bal i2cread;
nop;
li t0,15;
sub t0,v0;
sll t0,0x14;
or s1,t0;
/* set MC0_ECC bit @s1[32] */
move a0,s2;
li a1, 11;
bal i2cread;
li t0,0x2;
andi v0,0x2;
srl v0,0x1;
dsll v0,32;
//dli v0,0x100000000 // for test
or s1,v0;
/* set DIMM Type information @s1[33:33] */
move a0,s2;
li a1, 20;
bal i2cread;
nop;
andi v0,0x1; // only to check whether in Register Dual In_line memory module
dsll v0,33;
or s1,v0;
b out;
nop;
2: /* MC1_USED */
#if 1
/* set DDR MC1_CS_MAP @s1[15:12] ? */
ori s1, 0x4000 // at leaset one bit is selected
move a0,s2;
li a1, 5;
bal i2cread;
nop;
andi v0,0x1;
beq v0,0x0, 26f
nop
ori s1,0x8000
26:
/* set DDR MC1_COL_SIZE @s1[26:24] */
move a0,s2;
li a1, 4;
bal i2cread;
nop;
li t0,14;
sub t0,v0;
sll t0,0x18;
or s1,t0;
/* set MC1_EIGHT_BANK @s1[27] ? */
move a0,s2
li a1, 17;
bal i2cread;
nop;
andi v0,0x8;
srl v0,0x3;
sll v0,27; //MC0_EIGHT_BANK shift
or s1,v0;
/* set DDR MC1_ROW_SIZE @s1[30:28] */
move a0,s2;
li a1, 3;
bal i2cread;
nop;
li t0,15;
sub t0,v0;
sll t0,0x1c;
or s1,t0;
/* set MC1_ECC bit @s1[34] */
move a0,s2;
li a1, 11;
bal i2cread;
li t0,0x2;
andi v0,0x2;
srl v0,0x1;
dsll v0,34;
or s1,v0;
/* set DIMM Type information @s1[35:35] */
move a0,s2;
li a1, 20;
bal i2cread;
nop;
and v0,0x1;// only to check whether in Register Dual In_line memory module
dsll v0,35;
or s1,v0;
#endif
out:/* out of MC0_CS_MAP or MC1_CS_MAP */
//jr ra
jr a3
nop
END(PROBE_DIMM)
#else
/****************************************************/
/* for multi-chip mode */
/****************************************************/
/* input: a0,a1,a2
a0: device ID
a1: register offset
a2: chip ID (0,1,2,3)
changed registers: v0,v1,t3
*/
LEAF(i2cread)
ori a0,a0,1
/* added address offset according chip ID */
beqz a2,88f
nop
beq a2,0x1, 81f
nop
beq a2,0x2, 82f
nop
dli t3, CHIP3_BASE_ADDRESS
b 88f
81: dli t3, CHIP1_BASE_ADDRESS
b 88f
nop
82: dli t3, CHIP2_BASE_ADDRESS
b 88f
nop
88:
/* set device address */
//li v0, 0xbfd00000 + SMBUS_HOST_ADDRESS
dli v0, BONITO_HTIO_BASE_VA + SMBUS_HOST_ADDRESS
dadd v0,v0,t3
sb a0, 0(v0);
/* store register offset */
//li v0, 0xbfd00000 + SMBUS_HOST_COMMAND
li v0, BONITO_PCIIO_BASE_VA + SMBUS_HOST_COMMAND
dli v0, BONITO_HTIO_BASE_VA + SMBUS_HOST_COMMAND
dadd v0,v0,t3
sb a1, 0(v0);
/* read byte data protocol */
li v0, 0x08
//li v1, 0xbfd00000 + SMBUS_HOST_CONTROL
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_CONTROL
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_CONTROL
dadd v1,v1,t3
sb v0, 0(v1);
/* make sure SMB host ready to start, important!--zfx */
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
dadd v1,v1,t3
lbu v0, 0(v1)
andi v0,v0, 0x1f
beqz v0,1f
@ -30,14 +455,16 @@ LEAF(i2cread)
/* start */
//li v1, 0xbfd00000 + SMBUS_HOST_CONTROL
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_CONTROL
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_CONTROL
dadd v1,v1,t3
lbu v0, 0(v1)
ori v0, v0, 0x40
sb v0, 0(v1);
/* wait */
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
dadd v1,v1,t3
1:
#if 0
@ -54,7 +481,8 @@ LEAF(i2cread)
nop
//li v1, 0xbfd00000 + SMBUS_HOST_STATUS
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_STATUS
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_STATUS
dadd v1,v1,t3
lbu v0, 0(v1)
andi v0,v0, 0x1f
beqz v0,1f
@ -64,9 +492,302 @@ LEAF(i2cread)
1:
//li v1, 0xbfd00000 + SMBUS_HOST_DATA0
li v1, BONITO_PCIIO_BASE_VA + SMBUS_HOST_DATA0
dli v1, BONITO_HTIO_BASE_VA + SMBUS_HOST_DATA0
dadd v1,v1,t3
lbu v0, 0(v1)
jr ra
nop
END(i2cread)
/* input: a0,a1,a2
a0: I2C device ID
a1: register offset in the device
a2: CHIP id (0,1,2,3)
output: not set
*/
LEAF(PROBE_DIMM)
move a3,ra;
move s2,a0; //store a0: i2C DEVICE id
move s3,a1; //store a1: REG offset in i2c dev
li a1, 2;
bal i2cread;
nop;
beq v0,SPD_NODEVICE, out;
nop;
/* set DDR type @ s1[7:7] */
/* assumed here v0 should be 0xc or 0x8 */
//bne v0,SPD_TYPEDDR3, ddr2
andi v0,0x4;
srl v0,0x2;
sll v0,DDRTYPE_MASK ;
or s1,v0;
/* set CONTROLLER_SELECT@ s1[3:2] */
/* a1 should set to be MC0_USED or MC1_USD */
/* Firt check whether BOTH MC0 and MC1 used, if
true,set s1[3:2] = 2b'00
*/
or s1,s3;
andi t1,s1,0xc;
bne t1,0xc,10f;
nop
subu s1,0xc
10:
/* set SIZE_PER_CONTROLLE @ s1[6:4] */
/* step 1: read out number of DIMMS Ranks(CS) */
move a0, s2; //store a1: REG offset in i2c dev
li a1, 5;
bal i2cread;
nop;
andi v0,0x3; // MASK for DIMMS Ranks(CS)
move t2,v0;
//bez t2,out
nop
addi t2,0x1
/* step 2: read out DIMMS size */
move a0,s2;
li a1, 31;
bal i2cread;
nop;
bne v0,SPD_DDR2SIZE_512M, 11f;
nop;
//ori s1,DDR2SIZE_512M_MASK;
li v0, 0x20000000
b 1f;
nop;
11:
bne v0,SPD_DDR2SIZE_1G, 12f;
nop;
//ori s1,DDR2SIZE_1G_MASK;
li v0, 0x40000000
b 1f;
nop;
12:
bne v0,SPD_DDR2SIZE_2G, 1f;
nop;
//ori s1,DDR2SIZE_2G_MASK; // v0: 0x80 means 1G
li v0, 0x80000000;
1:
/* step 3: calculate each mem SIZE of one slot*/
beq t2,0x1,21f;
nop
sll v0,0x1
//multu v0,t2;
21:
bne v0,0x20000000, 13f
nop;
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_512M
else: do nothing, don't set PERSIZE_BIT
// defalut setting 512M leaset MEM size
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,211f;
nop
bleu t1,DDR2SIZE_512M_MASK, 15f;
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
211:
ori s1,DDRPERSZ_512M ;
b 15f;
nop
13:
bne v0,0x40000000, 14f
nop
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_1G
else: do nothing, don't set PERSIZE_BIT
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,131f;
nop
bleu t1, DDR2SIZE_1G_MASK,15f
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
131:
ori s1,DDRPERSZ_1G;
b 15f;
nop
14:/* only support 512M,1G,2G per DIMM now */
bne v0,0x80000000, 15f
nop
/* check whther this channel is smaller than others
if smller: remove other bits,and set DDRPERSZ_2G
else: do nothing, don't set PERSIZE_BIT
*/
andi t1,s1,DDR2SIZE_MASK;
beqz t1,141f;
nop
bleu t1, DDR2SIZE_2G_MASK,15f
nop
li t1,DDR2SIZE_MASK;
not t2,t1;
and s1,t2;
141:
ori s1,DDRPERSZ_2G;
15:
/* check whether MC0 or MC1 used to set CS_MAP */
bne s3, MC0_USED, 2f;
nop;
/* set DDR MC0_CS_MAP @s1[11:8] */
ori s1, 0x400 // at leaset one bit is selected
move a0,s2;
li a1, 5;
bal i2cread;
nop;
andi v0,0x1;
beq v0,0x0,16f;
nop;
ori s1,0x800;
16:
/* set DDR MC0_COL_SIZE @s1[18:16] */
move a0,s2;
li a1, 4;
bal i2cread;
nop;
li t0,14;
sub t0,v0;
sll t0,0x10;
or s1,t0;
/* set MC0_EIGHT_BANK @s1[19] */
move a0,s2;
li a1, 17;
bal i2cread;
nop;
andi v0,0x8;
srl v0,0x3;
sll v0,0x13; //MC0_EIGHT_BANK shift
or s1,v0;
/* set DDR MC0_ROW_SIZE @s1[22:20] */
move a0,s2;
li a1, 3;
bal i2cread;
nop;
li t0,15;
sub t0,v0;
sll t0,0x14;
or s1,t0;
/* set MC0_ECC bit @s1[32] */
move a0,s2;
li a1, 11;
bal i2cread;
li t0,0x2;
andi v0,0x2;
srl v0,0x1;
dsll v0,32;
//dli v0,0x100000000 // for test
or s1,v0;
/* set DIMM Type information @s1[33:33] */
move a0,s2;
li a1, 20;
bal i2cread;
nop;
andi v0,0x1; // only to check whether in Register Dual In_line memory module
dsll v0,33;
or s1,v0;
b out;
nop;
2: /* MC1_USED */
#if 1
/* set DDR MC1_CS_MAP @s1[15:12] ? */
ori s1, 0x4000 // at leaset one bit is selected
move a0,s2;
li a1, 5;
bal i2cread;
nop;
andi v0,0x1;
beq v0,0x0, 26f
nop
ori s1,0x8000
26:
/* set DDR MC1_COL_SIZE @s1[26:24] */
move a0,s2;
li a1, 4;
bal i2cread;
nop;
li t0,14;
sub t0,v0;
sll t0,0x18;
or s1,t0;
/* set MC1_EIGHT_BANK @s1[27] ? */
move a0,s2
li a1, 17;
bal i2cread;
nop;
andi v0,0x8;
srl v0,0x3;
sll v0,27; //MC0_EIGHT_BANK shift
or s1,v0;
/* set DDR MC1_ROW_SIZE @s1[30:28] */
move a0,s2;
li a1, 3;
bal i2cread;
nop;
li t0,15;
sub t0,v0;
sll t0,0x1c;
or s1,t0;
/* set MC1_ECC bit @s1[34] */
move a0,s2;
li a1, 11;
bal i2cread;
li t0,0x2;
andi v0,0x2;
srl v0,0x1;
dsll v0,34;
or s1,v0;
/* set DIMM Type information @s1[35:35] */
move a0,s2;
li a1, 20;
bal i2cread;
nop;
and v0,0x1;// only to check whether in Register Dual In_line memory module
dsll v0,35;
or s1,v0;
#endif
out:/* out of MC0_CS_MAP or MC1_CS_MAP */
//jr ra
jr a3
nop
END(PROBE_DIMM)
#endif

879
Targets/Bonito3adawning/Bonito/loongson3_ddr2_config.S
View File

File diff suppressed because it is too large

102
Targets/Bonito3adawning/Bonito/start.S
View File

@ -1008,8 +1008,108 @@ gs_2f_v3_ddr2_cfg:
#include "loongson3_fixup.S"
##########################################
/***********************************************************
s1:
|[35:35]| mc1_dimm_type | 1'b1 | registered dual |
| | | 1'b0 | unbuffered dual |
|[34:34]| mc1_ecc | 1'b1 | with data ecc |
| | | 1'b0 | no data ecc |
|[33:33]| mc0_dimm_type | 1'b1 | registered dual |
| | | 1'b0 | unbuffered dual |
|[32:32]| mc0_ecc | 1'b1 | with data ecc |
| | | 1'b0 | no data ecc |
|[31:31]| | 1'b0 | not used |
|[30:28]| mc1_row | mc0_row | 15 - mc1_row_size |
|[27:27]| mc1_eight_bank | 1'b0 | four banks |
| | | 1'b1 | eight banks |
|[26:24]| mc1_col | mc0_col | 14 - mc1_col_size |
|[22:20]| mc0_row | mc0_row | 15 - mc0_row_size |
|[19:19]| mc0_eight_bank | 1'b0 | four banks |
| | | 1'b1 | eight banks |
|[18:16]| mc0_col_size | mc0_col | 14 - col_size |
|[15:12]| mc1_cs_map | | |
|[11: 8]| mc0_cs_map | | |
|[ 7: 7]| ddr_type | 1'b0 | ddr2 |
| | | 1'b1 | ddr3 |
|[ 6: 4]| size_per_controller| 3'b001 | 512mb |
| | | 3'b010 | 1g |
| | | 3'b011 | 2g |
|[ 3: 2]| controller_select | 2'b00 | use both |
| | | 2'b01 | mc0_only |
| | | 2'b10 | mc1_only |
|[ 1: 0]| node id | | |
***********************************************************/
TTYDBG("NODE 0 MEMORY CONFIG BEGIN\r\n")
li s1, 0x0
#define MC0_USED 0x4
#define MC1_USED 0x8
#ifdef AUTO_DDR_CONFIG
/* Open the SMBUS controller */
dli a1,0x90001efdfe00a090 ; #b:d:f:r=0:14:0:90 set tmp config address
li a0,SMBUS_IO_BASE_VALUE | 0x1
sw a0, 0x0(a1);
/* enable the host controller */
dli a1,0x90001efdfe00a0d0 ; #b:d:f:r=0:14:0:d2 bit0=1
lw a0,0x0(a1);
li t1, 0x10000;
or a0, t1
sw a0, 0x0(a1);
PRINTSTR("\r\nProbing DDR SLOT: ");
li s1,0x0
//PRINTSTR("\r\nProbe MC0:JB09: ");
li a0,0xa1;
li a1,MC0_USED;
li a2,0x1
bal PROBE_DIMM;
nop;
//move a0,s1;
//bal hexserial;
//nop;
//PRINTSTR("\r\nProbe MC0:JB10: ");
li a0,0xa3;
li a1,MC0_USED;
li a2,0x1
bal PROBE_DIMM;
nop;
//move a0,s1;
//bal hexserial;
//nop;
//PRINTSTR("\r\nProbe MC1:JB11: ");
li a0,0xa5;
li a1,MC1_USED;
li a2,0x1
bal PROBE_DIMM;
nop;
//move a0,s1;
//bal hexserial;
//nop;
//PRINTSTR("\r\nProbe MC1:JB12: ");
li a0,0xa7;
li a1,MC1_USED;
li a2,0x1
bal PROBE_DIMM;
nop;
/* show value of 64 bit s1 */
move a0,s1;
dsrl a0,32;
bal hexserial;
nop;
PRINTSTR("_");
move a0,s1;
bal hexserial;
nop;
PRINTSTR("\r\n");
#else
li s1, 0x14140c24
#endif
#include "loongson3_ddr2_config.S"
##########################################

3
Targets/Bonito3adawning/conf/Bonito.3adawning
View File

@ -28,7 +28,8 @@ option INET
option LS3_HT # Enable the IO cache coherent of HT
#option MCP68_IDE # Enable the MCP68 IDE 0 channel
option USE_LPC_UART
option MULTI_CHIP
#option MULTI_CHIP
option AUTO_DDR_CONFIG
option ENABLE_SATA #Enable SATA ,when enable IDE can also use, when commended only IDE can use
select amd_780e

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