1 /* 2 * Copyright (C) 2010 Francisco Jerez. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 #include "nv04.h" 27 #include "fbmem.h" 28 29 #include <subdev/bios.h> 30 #include <subdev/bios/bmp.h> 31 #include <subdev/bios/init.h> 32 #include <subdev/vga.h> 33 34 static void 35 nv05_devinit_meminit(struct nvkm_devinit *init) 36 { 37 static const u8 default_config_tab[][2] = { 38 { 0x24, 0x00 }, 39 { 0x28, 0x00 }, 40 { 0x24, 0x01 }, 41 { 0x1f, 0x00 }, 42 { 0x0f, 0x00 }, 43 { 0x17, 0x00 }, 44 { 0x06, 0x00 }, 45 { 0x00, 0x00 } 46 }; 47 struct nvkm_subdev *subdev = &init->subdev; 48 struct nvkm_device *device = subdev->device; 49 struct nvkm_bios *bios = device->bios; 50 struct io_mapping *fb; 51 u32 patt = 0xdeadbeef; 52 u16 data; 53 u8 strap, ramcfg[2]; 54 int i, v; 55 56 /* Map the framebuffer aperture */ 57 fb = fbmem_init(device); 58 if (!fb) { 59 nvkm_error(subdev, "failed to map fb\n"); 60 return; 61 } 62 63 strap = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2; 64 if ((data = bmp_mem_init_table(bios))) { 65 ramcfg[0] = nvbios_rd08(bios, data + 2 * strap + 0); 66 ramcfg[1] = nvbios_rd08(bios, data + 2 * strap + 1); 67 } else { 68 ramcfg[0] = default_config_tab[strap][0]; 69 ramcfg[1] = default_config_tab[strap][1]; 70 } 71 72 /* Sequencer off */ 73 nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) | 0x20); 74 75 if (nvkm_rd32(device, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE) 76 goto out; 77 78 nvkm_mask(device, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0); 79 80 /* If present load the hardcoded scrambling table */ 81 if (data) { 82 for (i = 0, data += 0x10; i < 8; i++, data += 4) { 83 u32 scramble = nvbios_rd32(bios, data); 84 nvkm_wr32(device, NV04_PFB_SCRAMBLE(i), scramble); 85 } 86 } 87 88 /* Set memory type/width/length defaults depending on the straps */ 89 nvkm_mask(device, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]); 90 91 if (ramcfg[1] & 0x80) 92 nvkm_mask(device, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE); 93 94 nvkm_mask(device, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20); 95 nvkm_mask(device, NV04_PFB_CFG1, 0, 1); 96 97 /* Probe memory bus width */ 98 for (i = 0; i < 4; i++) 99 fbmem_poke(fb, 4 * i, patt); 100 101 if (fbmem_peek(fb, 0xc) != patt) 102 nvkm_mask(device, NV04_PFB_BOOT_0, 103 NV04_PFB_BOOT_0_RAM_WIDTH_128, 0); 104 105 /* Probe memory length */ 106 v = nvkm_rd32(device, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT; 107 108 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB && 109 (!fbmem_readback(fb, 0x1000000, ++patt) || 110 !fbmem_readback(fb, 0, ++patt))) 111 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 112 NV04_PFB_BOOT_0_RAM_AMOUNT_16MB); 113 114 if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB && 115 !fbmem_readback(fb, 0x800000, ++patt)) 116 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 117 NV04_PFB_BOOT_0_RAM_AMOUNT_8MB); 118 119 if (!fbmem_readback(fb, 0x400000, ++patt)) 120 nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, 121 NV04_PFB_BOOT_0_RAM_AMOUNT_4MB); 122 123 out: 124 /* Sequencer on */ 125 nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) & ~0x20); 126 fbmem_fini(fb); 127 } 128 129 static const struct nvkm_devinit_func 130 nv05_devinit = { 131 .dtor = nv04_devinit_dtor, 132 .preinit = nv04_devinit_preinit, 133 .post = nv04_devinit_post, 134 .meminit = nv05_devinit_meminit, 135 .pll_set = nv04_devinit_pll_set, 136 }; 137 138 int 139 nv05_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 140 struct nvkm_devinit **pinit) 141 { 142 return nv04_devinit_new_(&nv05_devinit, device, type, inst, pinit); 143 } 144