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northbridge/amd: Add Kconfig options for ECC scrub rate 

Change-Id: Icbbba0037c19bdc279813e51c72f54a10e4dc55a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/8263
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Timothy Pearson 2015-01-23 20:24:30 -06:00 committed by Alexandru Gagniuc
parent d0c1dd0205
commit 6f2caa0ffa
2 changed files with 59 additions and 23 deletions
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33
src/northbridge/amd/Kconfig
View File

@ -98,4 +98,37 @@ config LIMIT_HT_UP_WIDTH_16
bool "16 bits" bool "16 bits"
endchoice endchoice
config AMDMCT_BACKGROUND_SCRUB_RATE
hex
depends on CPU_AMD_MODEL_10XXX
default 0x00
help
This option sets the background ECC memory scub rate
Permissible values are:
0x00; Disabled
0x01; 40ns
0x02; 80ns
0x03; 160ns
0x04; 320ns
0x05; 640ns
0x06; 1.28us
0x07; 2.56us
0x08; 5.12us
0x09; 10.2us
0x0a; 20.5us
0x0b; 41us
0x0c; 81.9us
0x0d; 163.8us
0x0e; 327.7us
0x0f; 655.4us
0x10; 1.31ms
0x11; 2.62ms
0x12; 5.24ms
0x13; 10.49ms
0x14; 20.97sms
0x15; 42ms
0x16; 84ms
endmenu endmenu

49
src/northbridge/amd/amdmct/wrappers/mcti_d.c
View File

@ -171,29 +171,32 @@ static u16 mctGet_NVbits(u8 index)
//val = 1; /* Enable */ //val = 1; /* Enable */
break; break;
case NV_DramBKScrub: case NV_DramBKScrub:
val = 0x00; /* Disabled */ /*
//val = 0x01; /* 40ns */ * 0x00: Disabled
//val = 0x02; /* 80ns */ * 0x01: 40ns
//val = 0x03; /* 160ns */ * 0x02: 80ns
//val = 0x04; /* 320ns */ * 0x03: 160ns
//val = 0x05; /* 640ns */ * 0x04: 320ns
//val = 0x06; /* 1.28us */ * 0x05: 640ns
//val = 0x07; /* 2.56us */ * 0x06: 1.28us
//val = 0x08; /* 5.12us */ * 0x07: 2.56us
//val = 0x09; /* 10.2us */ * 0x08: 5.12us
//val = 0x0a; /* 20.5us */ * 0x09: 10.2us
//val = 0x0b; /* 41us */ * 0x0a: 20.5us
//val = 0x0c; /* 81.9us */ * 0x0b: 41us
//val = 0x0d; /* 163.8us */ * 0x0c: 81.9us
//val = 0x0e; /* 327.7us */ * 0x0d: 163.8us
//val = 0x0f; /* 655.4us */ * 0x0e: 327.7us
//val = 0x10; /* 1.31ms */ * 0x0f: 655.4us
//val = 0x11; /* 2.62ms */ * 0x10: 1.31ms
//val = 0x12; /* 5.24ms */ * 0x11: 2.62ms
//val = 0x13; /* 10.49ms */ * 0x12: 5.24ms
//val = 0x14; /* 20.97sms */ * 0x13: 10.49ms
//val = 0x15; /* 42ms */ * 0x14: 20.97sms
//val = 0x16; /* 84ms */ * 0x15: 42ms
* 0x16: 84ms
*/
val = CONFIG_AMDMCT_BACKGROUND_SCRUB_RATE;
break; break;
case NV_L2BKScrub: case NV_L2BKScrub:
val = 0; /* Disabled - See L2Scrub in BKDG */ val = 0; /* Disabled - See L2Scrub in BKDG */