Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * Authors: Ben Skeggs |
| 23 | */ |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 24 | #include "ramnv40.h" |
Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 25 | |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 26 | int |
| 27 | nv49_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) |
Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 28 | { |
Ben Skeggs | 6758745 | 2015-08-20 14:54:09 +1000 | [diff] [blame] | 29 | struct nvkm_device *device = fb->subdev.device; |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 30 | u32 size = nvkm_rd32(device, 0x10020c) & 0xff000000; |
| 31 | u32 tags = nvkm_rd32(device, 0x100320); |
Ben Skeggs | 6758745 | 2015-08-20 14:54:09 +1000 | [diff] [blame] | 32 | u32 fb914 = nvkm_rd32(device, 0x100914); |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 33 | enum nvkm_ram_type type = NVKM_RAM_TYPE_UNKNOWN; |
Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 34 | int ret; |
| 35 | |
Ben Skeggs | b1e4553 | 2015-08-20 14:54:06 +1000 | [diff] [blame] | 36 | switch (fb914 & 0x00000003) { |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 37 | case 0x00000000: type = NVKM_RAM_TYPE_DDR1 ; break; |
| 38 | case 0x00000001: type = NVKM_RAM_TYPE_DDR2 ; break; |
| 39 | case 0x00000002: type = NVKM_RAM_TYPE_GDDR3; break; |
Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 40 | case 0x00000003: break; |
| 41 | } |
| 42 | |
Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 43 | ret = nv40_ram_new_(fb, type, size, tags, pram); |
| 44 | if (ret) |
| 45 | return ret; |
| 46 | |
| 47 | (*pram)->parts = (nvkm_rd32(device, 0x100200) & 0x00000003) + 1; |
Ben Skeggs | dceef5d | 2013-03-04 13:01:21 +1000 | [diff] [blame] | 48 | return 0; |
| 49 | } |