K7 support is back!
This commit is contained in:
Ronald G. Minnich
parent
e433002b05
commit
66fa179fd6
3 changed files with 342 additions and 2 deletions
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@ -13,3 +13,325 @@ k7_cpufixup(unsigned long ram_kilobytes)
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printk_err("WARNING: you are running the busted version of linuxbios\n");
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printk_err("for K7. It will really run slow\n");
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}
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// see the explanation in freebios/util/k7msr for how this code was
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// created. Short form: NO NDA material was used to create this code.
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// Go sue somebody else.
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struct msrval {
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unsigned long msr, lo, hi;
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};
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// the pattern is:
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// 1x128 2x128, 0x1x256, 0x2x256, 128+256, 0x256+128
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char *fixit[] = {"1x128", "2x128", "1x256", "2x256",
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"128+256", "256+128"};
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struct msrval fixmsr[6][40] = {
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0xff8d7df7, 0x00000000},
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{0xc0010001, 0xff9fee9f, 0x00000000},
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{0xc0010002, 0xff1fffbe, 0x00000000},
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{0xc0010003, 0xff9fff9f, 0x00000000},
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{0xc0010004, 0xfffeefff, 0x0000ffee},
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{0xc0010005, 0xffbffdf7, 0x0000ffff},
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{0xc0010006, 0x7ffffff7, 0x0000ff7d},
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{0xc0010007, 0xcffbfeff, 0x0000fffb},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x07800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0}},
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0x9f8dfdf7, 0x00000000},
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{0xc0010001, 0xff97fe9f, 0x00000000},
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{0xc0010002, 0xff1fffbf, 0x00000000},
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{0xc0010003, 0xff9fff9f, 0x00000000},
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{0xc0010004, 0xfffeefff, 0x0000ffee},
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{0xc0010005, 0xffbffdf7, 0x0000ffff},
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{0xc0010006, 0x7fffffff, 0x0000dfdc},
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{0xc0010007, 0xeffbfeff, 0x0000ffff},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x0f800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0}},
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0x9f8dfcf7, 0x00000000},
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{0xc0010001, 0xff97ffdd, 0x00000000},
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{0xc0010002, 0xff1dffbf, 0x00000000},
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{0xc0010003, 0xff9fff9f, 0x00000000},
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{0xc0010004, 0xdffeefff, 0x0000ffee},
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{0xc0010005, 0xbfbefdf7, 0x0000ffff},
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{0xc0010006, 0xffffffff, 0x0000dfdc},
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{0xc0010007, 0xcffbfeff, 0x0000fffb},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x0f800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0}},
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0xff8ffdf7, 0x00000000},
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{0xc0010001, 0xff9fee9f, 0x00000000},
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{0xc0010002, 0xff1fffbf, 0x00000000},
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{0xc0010003, 0xff9fff9f, 0x00000000},
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{0xc0010004, 0xfffeefff, 0x0000b7ee},
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{0xc0010005, 0xffbffdf7, 0x0000ffff},
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{0xc0010006, 0x7fffffff, 0x0000dfdd},
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{0xc0010007, 0xcffbffff, 0x0000efff},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x1f800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0}},
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0x9f8dfdf7, 0x00000000},
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{0xc0010001, 0xff97fe9f, 0x00000000},
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{0xc0010002, 0xff1fffbf, 0x00000000},
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{0xc0010003, 0xff9fffdf, 0x00000000},
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{0xc0010004, 0xfffeefff, 0x0000ffee},
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{0xc0010005, 0xbfbffdf7, 0x0000ffff},
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{0xc0010006, 0x7fffffff, 0x0000dfdd},
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{0xc0010007, 0xcffbfeff, 0x0000fffb},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x17800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0}},
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{
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{0xc0000080, 0x00000000, 0x00000000},
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{0xc0000081, 0x00000000, 0x00000000},
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{0xc0010000, 0x9f8dfdf7, 0x00000000},
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{0xc0010001, 0xff9fefdf, 0x00000000},
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{0xc0010002, 0xff1dffbe, 0x00000000},
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{0xc0010003, 0xff9fff9f, 0x00000000},
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{0xc0010004, 0xdffeefff, 0x0000ffff},
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{0xc0010005, 0xffbffdf7, 0x0000ffff},
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{0xc0010006, 0x7fffffff, 0x0000dfdc},
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{0xc0010007, 0xeffbfeff, 0x0000eff9},
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{0xc0010010, 0x00160604, 0x00000000},
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{0xc0010015, 0x0e001008, 0x00000000},
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{0xc0010016, 0x00000000, 0x00000000},
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{0xc0010017, 0x00000000, 0x00000000},
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{0xc0010018, 0xd0000018, 0x00000000},
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{0xc0010019, 0xfc000800, 0x0000000f},
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{0xc001001a, 0x17800000, 0x00000000},
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{0xc001001b, 0x29679223, 0x00000000},
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{0xc001001d, 0x00000000, 0x00000000},
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{0xc0010030, 0x20444d41, 0x6c687441},
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{0xc0010031, 0x74286e6f, 0x5020296d},
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{0xc0010032, 0x65636f72, 0x726f7373},
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{0xc0010033, 0x00000000, 0x00000000},
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{0xc0010034, 0x00000000, 0x00000000},
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{0xc0010035, 0x00000000, 0x00000000},
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{0xc0010100, 0xfc000000, 0x00000000},
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{0xc0010101, 0x00000000, 0x00000000},
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{0xc0010102, 0xf8000000, 0x00000000},
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{0xc0010103, 0xf8000000, 0x00000000},
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{0xc0010104, 0x00000011, 0x00000000},
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{0xc0010105, 0x00050002, 0x00000000},
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{0xc0010106, 0x00050002, 0x00000000},
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{0xc0010111, 0x000b0000, 0x00000000},
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{0xc0010112, 0x00000000, 0x00000000},
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{0xc0010113, 0x00000001, 0x00000000},
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{0xc0010114, 0xffffffff, 0x00000008},
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{0xc0010115, 0xffffffff, 0xffffffff},
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{0xc0010116, 0x00000027, 0x00000008},
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{0xc0010117, 0x00000027, 0x00000027},
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{0,0,0},
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}};
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int writemsr(struct msrval *v)
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{
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unsigned int lo, hi;
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printk_info("%#x: lo %#x, hi %#x\n",
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v->msr, v->lo, v->hi);
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wrmsr(v->msr, v->lo, v->hi);
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rdmsr(v->msr, lo, hi);
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if (lo != v->lo)
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printk_err("set lo fails, is %#x want %#x\n",
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lo, v->lo);
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if (hi != v->hi)
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printk_err("set hi fails, is %#x want %#x\n",
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hi, v->hi);
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return (1);
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}
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// take the 2 dimm sizes in Kbytes, and figure out which MSR
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// values to patch.
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void
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fixk7msr_2dimms(unsigned long dimm1sizeM, unsigned long dimm2sizeM)
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{
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int i, j;
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int offset;
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// the pattern is:
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// 1x128 2x128, 1x256, 0x2x256, 128+256, 0x256+128
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struct dimmindex {int dimm1sizeM, dimm2sizeM;};
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struct dimmindex dimms[] = {
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{128, 0},
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{128, 128},
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{256, 0},
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{256, 256},
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{128, 256},
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{256, 128}
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};
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for(i = 0, offset = -1; (offset < 0) &&
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(i < sizeof(dimms)/sizeof(dimms[0])); i++)
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if ((dimm1sizeM == dimms[i].dimm1sizeM) &&
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(dimm2sizeM == dimms[i].dimm2sizeM))
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offset = i;
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if (offset == -1) {
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printk_err("%dM in slot 1 and %dM in slot 2:"
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" This is an unsupported setup\n",
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dimm1sizeM, dimm2sizeM);
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return;
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}
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printk_err("Fixing DIMMS with %s\n", fixit[offset]);
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for(j = 0; fixmsr[offset][j].msr; j++)
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writemsr(&fixmsr[offset][j]);
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}
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@ -8,11 +8,21 @@ mainboard_fixup(void)
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void
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final_mainboard_fixup(void)
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{
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void fixk7msr_2dimms(unsigned long dimm1sizeK,
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unsigned long dimm2sizeK);
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void final_southbridge_fixup(void);
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void final_superio_fixup(void);
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extern unsigned long slotsizeM[];
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printk_info("PCCHIPS M810LMR (and similar)...");
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// we need to fix up the K7 MSRs.
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// to do this, we get the DIMM sizes in slot1 and 2, and
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// call fixk7msr_2dimms
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// this is all very mainboard-specific ...
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printk_err("Fixing mainboard for dimms %dK + %dK\n",
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slotsizeM[0], slotsizeM[1]);
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fixk7msr_2dimms(slotsizeM[0], slotsizeM[1]);
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final_southbridge_fixup();
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#ifndef USE_NEW_SUPERIO_INTERFACE
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final_superio_fixup();
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@ -37,6 +37,12 @@ const static int ramsizes[16] =
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#define SIS630_BANK1 0x61
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#define SIS630_BANK2 0x62
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#define SIS630_DIMM_LOCATION_FOR_SMA 0x65
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#define MAX_DIMM_SLOTS 3
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// We thought about a function but this is easier.
|
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// feel free to improve on this idea.
|
||||
// this array has all the DIMM slot size in Kbytes.
|
||||
unsigned long slotsizeM[MAX_DIMM_SLOTS];
|
||||
|
||||
unsigned long sizeram()
|
||||
{
|
||||
struct pci_dev *pcidev;
|
||||
|
|
@ -67,6 +73,7 @@ unsigned long sizeram()
|
|||
for (dimm_slot = 0, total_size = 0, dimm_reg = SIS630_BANK0;
|
||||
dimm_reg <= SIS630_BANK2; dimm_slot++, dimm_reg++) {
|
||||
u8 regval;
|
||||
slotsizeM[dimm_slot] = 0;
|
||||
if ((dimm_status & (1 << dimm_slot)) == 0)
|
||||
/* this DIMM slot does not have SDRAM installed */
|
||||
continue;
|
||||
|
|
@ -80,7 +87,8 @@ unsigned long sizeram()
|
|||
sides = 1;
|
||||
|
||||
/* low-order 4 bits are a ram size */
|
||||
total_size += (ramsizes[regval & 0xf] * sides);
|
||||
slotsizeM[dimm_slot] = (ramsizes[regval & 0xf] * sides);
|
||||
total_size += slotsizeM[dimm_slot];
|
||||
}
|
||||
|
||||
/* the total memory visible to the system is physical memory installed minus the
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue