| 1 | #ifndef __NVBIOS_PLL_H__ |
| 2 | #define __NVBIOS_PLL_H__ |
| 3 | |
| 4 | /*XXX: kill me */ |
| 5 | struct nouveau_pll_vals { |
| 6 | union { |
| 7 | struct { |
| 8 | #ifdef __BIG_ENDIAN |
| 9 | uint8_t N1, M1, N2, M2; |
| 10 | #else |
| 11 | uint8_t M1, N1, M2, N2; |
| 12 | #endif |
| 13 | }; |
| 14 | struct { |
| 15 | uint16_t NM1, NM2; |
| 16 | } __attribute__((packed)); |
| 17 | }; |
| 18 | int log2P; |
| 19 | |
| 20 | int refclk; |
| 21 | }; |
| 22 | |
| 23 | struct nouveau_bios; |
| 24 | |
| 25 | /* these match types in pll limits table version 0x40, |
| 26 | * nouveau uses them on all chipsets internally where a |
| 27 | * specific pll needs to be referenced, but the exact |
| 28 | * register isn't known. |
| 29 | */ |
| 30 | enum nvbios_pll_type { |
| 31 | PLL_CORE = 0x01, |
| 32 | PLL_SHADER = 0x02, |
| 33 | PLL_UNK03 = 0x03, |
| 34 | PLL_MEMORY = 0x04, |
| 35 | PLL_VDEC = 0x05, |
| 36 | PLL_UNK40 = 0x40, |
| 37 | PLL_UNK41 = 0x41, |
| 38 | PLL_UNK42 = 0x42, |
| 39 | PLL_VPLL0 = 0x80, |
| 40 | PLL_VPLL1 = 0x81, |
| 41 | PLL_VPLL2 = 0x82, |
| 42 | PLL_VPLL3 = 0x83, |
| 43 | PLL_MAX = 0xff |
| 44 | }; |
| 45 | |
| 46 | struct nvbios_pll { |
| 47 | enum nvbios_pll_type type; |
| 48 | u32 reg; |
| 49 | u32 refclk; |
| 50 | |
| 51 | u8 min_p; |
| 52 | u8 max_p; |
| 53 | u8 bias_p; |
| 54 | |
| 55 | /* |
| 56 | * for most pre nv50 cards setting a log2P of 7 (the common max_log2p |
| 57 | * value) is no different to 6 (at least for vplls) so allowing the MNP |
| 58 | * calc to use 7 causes the generated clock to be out by a factor of 2. |
| 59 | * however, max_log2p cannot be fixed-up during parsing as the |
| 60 | * unmodified max_log2p value is still needed for setting mplls, hence |
| 61 | * an additional max_usable_log2p member |
| 62 | */ |
| 63 | u8 max_p_usable; |
| 64 | |
| 65 | struct { |
| 66 | u32 min_freq; |
| 67 | u32 max_freq; |
| 68 | u32 min_inputfreq; |
| 69 | u32 max_inputfreq; |
| 70 | u8 min_m; |
| 71 | u8 max_m; |
| 72 | u8 min_n; |
| 73 | u8 max_n; |
| 74 | } vco1, vco2; |
| 75 | }; |
| 76 | |
| 77 | int nvbios_pll_parse(struct nouveau_bios *, u32 type, struct nvbios_pll *); |
| 78 | |
| 79 | #endif |
| 80 | |