diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c index 82804bdcec31..fd181fbceddb 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c @@ -23,17 +23,57 @@ */ #include <subdev/clock.h> +#include <subdev/bios.h> +#include <subdev/bios/pll.h> + +#include "pll.h" struct nv50_clock_priv { struct nouveau_clock base; }; -static void +static int nv50_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq) { struct nv50_clock_priv *priv = (void *)clk; + struct nouveau_bios *bios = nouveau_bios(priv); + struct nvbios_pll info; + int N1, M1, N2, M2, P; + int ret; + + ret = nvbios_pll_parse(bios, type, &info); + if (ret) { + nv_error(clk, "failed to retrieve pll data, %d\n", ret); + return ret; + } - nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); + ret = nv04_pll_calc(clk, &info, freq, &N1, &M1, &N2, &M2, &P); + if (!ret) { + nv_error(clk, "failed pll calculation\n"); + return ret; + } + + switch (info.type) { + case PLL_VPLL0: + case PLL_VPLL1: + nv_wr32(priv, info.reg + 0, 0x10000611); + nv_mask(priv, info.reg + 4, 0x00ff00ff, (M1 << 16) | N1); + nv_mask(priv, info.reg + 8, 0x7fff00ff, (P << 28) | + (M2 << 16) | N2); + break; + case PLL_MEMORY: + nv_mask(priv, info.reg + 0, 0x01ff0000, (P << 22) | + (info.bias_p << 19) | + (P << 16)); + nv_wr32(priv, info.reg + 4, (N1 << 8) | M1); + break; + default: + nv_mask(priv, info.reg + 0, 0x00070000, (P << 16)); + nv_wr32(priv, info.reg + 4, (N1 << 8) | M1); + break; + } + + return 0; } static int |