/* * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include "rs780.h" /***************************************** * rs780_config_misc_clk() *****************************************/ void static rs780_config_misc_clk(device_t nb_dev) { u32 reg; u16 word; u8 byte; struct bus pbus; /* fake bus for dev0 fun1 */ reg = pci_read_config32(nb_dev, 0x4c); reg |= 1 << 0; pci_write_config32(nb_dev, 0x4c, reg); word = pci_cf8_conf1.read16(&pbus, 0, 1, 0xf8); word &= 0xf00; pci_cf8_conf1.write16(&pbus, 0, 1, 0xf8, word); word = pci_cf8_conf1.read16(&pbus, 0, 1, 0xe8); word &= ~((1 << 12) | (1 << 13) | (1 << 14)); word |= 1 << 13; pci_cf8_conf1.write16(&pbus, 0, 1, 0xe8, word); reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x94); reg &= ~((1 << 16) | (1 << 24) | (1 << 28)); pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg); reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x8c); reg &= ~((1 << 13) | (1 << 14) | (1 << 24) | (1 << 25)); reg |= 1 << 13; pci_cf8_conf1.write32(&pbus, 0, 1, 0x8c, reg); reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0xcc); reg |= 1 << 24; pci_cf8_conf1.write32(&pbus, 0, 1, 0xcc, reg); reg = nbmc_read_index(nb_dev, 0x7a); reg &= ~0x3f; reg |= 1 << 2; reg &= ~(1 << 6); set_htiu_enable_bits(nb_dev, 0x05, 1 << 11, 1 << 11); nbmc_write_index(nb_dev, 0x7a, reg); /* Powering Down efuse and strap block clocks after boot-up. GFX Mode. */ reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0xcc); reg &= ~(1 << 23); reg |= 1 << 24; pci_cf8_conf1.write32(&pbus, 0, 1, 0xcc, reg); /* Programming NB CLK table. */ byte = pci_cf8_conf1.read8(&pbus, 0, 1, 0xe0); byte |= 0x01; pci_cf8_conf1.write8(&pbus, 0, 1, 0xe0, byte); #if 0 /* Powerdown reference clock to graphics core PLL in northbridge only mode */ reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x8c); reg |= 1 << 21; pci_cf8_conf1.write32(&pbus, 0, 1, 0x8c, reg); /* Powering Down efuse and strap block clocks after boot-up. NB Only Mode. */ reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0xcc); reg |= (1 << 23) | (1 << 24); pci_cf8_conf1.write32(&pbus, 0, 1, 0xcc, reg); /* Powerdown clock to memory controller in northbridge only mode */ byte = pci_cf8_conf1.read8(&pbus, 0, 1, 0xe4); byte |= 1 << 0; pci_cf8_conf1.write8(&pbus, 0, 1, 0xe4, reg); /* CLKCFG:0xE8 Bit[17] = 0x1 Powerdown clock to IOC GFX block in no external graphics mode */ /* TODO: */ #endif reg = pci_read_config32(nb_dev, 0x4c); reg &= ~(1 << 0); pci_write_config32(nb_dev, 0x4c, reg); set_htiu_enable_bits(nb_dev, 0x05, 7 << 8, 7 << 8); } static u32 get_vid_did(device_t dev) { return pci_read_config32(dev, 0); } static void rs780_nb_pci_table(device_t nb_dev) { /* NBPOR_InitPOR function. */ u8 temp8; u16 temp16; u32 temp32; /* Program NB PCI table. */ temp16 = pci_read_config16(nb_dev, 0x04); printk(BIOS_DEBUG, "NB_PCI_REG04 = %x.\n", temp16); temp32 = pci_read_config32(nb_dev, 0x84); printk(BIOS_DEBUG, "NB_PCI_REG84 = %x.\n", temp32); pci_write_config8(nb_dev, 0x4c, 0x42); temp8 = pci_read_config8(nb_dev, 0x4e); temp8 |= 0x05; pci_write_config8(nb_dev, 0x4e, temp8); temp32 = pci_read_config32(nb_dev, 0x4c); printk(BIOS_DEBUG, "NB_PCI_REG4C = %x.\n", temp32); /* set temporary NB TOM to 0x40000000. */ rs780_set_tom(nb_dev); /* Program NB HTIU table. */ #if 0 set_htiu_enable_bits(nb_dev, 0x05, 1<<10 | 1<<9, 1<<10|1<<9); set_htiu_enable_bits(nb_dev, 0x06, 1, 0x4203a202); set_htiu_enable_bits(nb_dev, 0x07, 1<<1 | 1<<2, 0x8001); set_htiu_enable_bits(nb_dev, 0x15, 0, 1<<31 | 1<<30 | 1<<27); set_htiu_enable_bits(nb_dev, 0x1c, 0, 0xfffe0000); set_htiu_enable_bits(nb_dev, 0x4b, 1<<11, 1<<11); set_htiu_enable_bits(nb_dev, 0x0c, 0x3f, 1 | 1<<3); set_htiu_enable_bits(nb_dev, 0x17, 1<<1 | 1<<27, 1<<1); set_htiu_enable_bits(nb_dev, 0x17, 0, 1<<30); set_htiu_enable_bits(nb_dev, 0x19, 0xfffff+(1<<31), 0x186a0+(1<<31)); set_htiu_enable_bits(nb_dev, 0x16, 0x3f<<10, 0x7<<10); set_htiu_enable_bits(nb_dev, 0x23, 0, 1<<28); /* Program NB MISC table. */ set_nbmisc_enable_bits(nb_dev, 0x0b, 0xffff, 0x00000180); set_nbmisc_enable_bits(nb_dev, 0x00, 0xffff, 0x00000106); set_nbmisc_enable_bits(nb_dev, 0x51, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x53, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x55, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x57, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x59, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x5b, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x5d, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x5f, 0xffffffff, 0x00100100); set_nbmisc_enable_bits(nb_dev, 0x20, 1<<1, 0); set_nbmisc_enable_bits(nb_dev, 0x37, 1<<11|1<<12|1<<13|1<<26, 0); set_nbmisc_enable_bits(nb_dev, 0x68, 1<<5|1<<6, 1<<5); set_nbmisc_enable_bits(nb_dev, 0x6b, 1<<22, 1<<10); set_nbmisc_enable_bits(nb_dev, 0x67, 1<<26, 1<<14|1<<10); set_nbmisc_enable_bits(nb_dev, 0x24, 1<<28|1<<26|1<<25|1<<16, 1<<29|1<<25); set_nbmisc_enable_bits(nb_dev, 0x38, 1<<24|1<<25, 1<<24); set_nbmisc_enable_bits(nb_dev, 0x36, 1<<29, 1<<29|1<<28); set_nbmisc_enable_bits(nb_dev, 0x0c, 0, 1<<13); set_nbmisc_enable_bits(nb_dev, 0x34, 1<<22, 1<<10); set_nbmisc_enable_bits(nb_dev, 0x39, 1<<10, 1<<30); set_nbmisc_enable_bits(nb_dev, 0x22, 1<<3, 0); set_nbmisc_enable_bits(nb_dev, 0x68, 1<<19, 0); set_nbmisc_enable_bits(nb_dev, 0x24, 1<<16|1<<17, 1<<17); set_nbmisc_enable_bits(nb_dev, 0x6a, 1<<22|1<<23, 1<<17|1<<23); set_nbmisc_enable_bits(nb_dev, 0x35, 1<<21|1<<22, 1<<22); set_nbmisc_enable_bits(nb_dev, 0x01, 0xffffffff, 0x48); /* the last two step. */ set_nbmisc_enable_bits(nb_dev, 0x01, 1<<8, 1<<8); set_htiu_enable_bits(nb_dev, 0x2d, 1<<6|1<<4, 1<<6|1<<4); #endif } static void rs780_nb_gfx_dev_table(device_t nb_dev, device_t dev) { /* NB_InitGFXStraps */ u32 MMIOBase, apc04, apc18, apc24, romstrap2; msr_t pcie_mmio_save; volatile u32 * strap; // disable processor pcie mmio, if enabled if (is_family10h()) { msr_t temp; pcie_mmio_save = temp = rdmsr (0xc0010058); temp.lo &= ~1; wrmsr (0xc0010058, temp); } /* Get PCIe configuration space. */ MMIOBase = pci_read_config32(nb_dev, 0x1c) & 0xfffffff0; /* Temporarily disable PCIe configuration space. */ set_htiu_enable_bits(nb_dev, 0x32, 1<<28, 0); // 1E: NB_BIF_SPARE set_nbmisc_enable_bits(nb_dev, 0x1e, 0xffffffff, 1<<1 | 1<<4 | 1<<6 | 1<<7); /* Set a temporary Bus number. */ apc18 = pci_read_config32(dev, 0x18); pci_write_config32(dev, 0x18, 0x010100); /* Set MMIO for AGP target(graphics controller). base = 0xe0000000, limit = 0x20000 */ apc24 = pci_read_config32(dev, 0x24); pci_write_config32(dev, 0x24, (MMIOBase>>16)+((MMIOBase+0x20000)&0xffff0000)); /* Enable memory access. */ apc04 = pci_read_config32(dev, 0x04); pci_write_config8(dev, 0x04, 0x02); /* Program Straps. */ romstrap2 = 1 << 26; // enables audio function #if (CONFIG_GFXUMA == 1) extern uint64_t uma_memory_size; // bits 7-9: aperture size // 0-7: 128mb, 256mb, 64mb, 32mb, 512mb, 1g, 2g, 4g if (uma_memory_size == 0x02000000) romstrap2 |= 3 << 7; if (uma_memory_size == 0x04000000) romstrap2 |= 2 << 7; if (uma_memory_size == 0x08000000) romstrap2 |= 0 << 7; if (uma_memory_size == 0x10000000) romstrap2 |= 1 << 7; if (uma_memory_size == 0x20000000) romstrap2 |= 4 << 7; if (uma_memory_size == 0x40000000) romstrap2 |= 5 << 7; if (uma_memory_size == 0x80000000) romstrap2 |= 6 << 7; #endif strap = (volatile u32 *)(MMIOBase + 0x15020); *strap = romstrap2; strap = (volatile u32 *)(MMIOBase + 0x15000); *strap = 0x2c006300; strap = (volatile u32 *)(MMIOBase + 0x15010); *strap = 0x03015330; strap = (volatile u32 *)(MMIOBase + 0x15020); *strap = romstrap2 | 0x00000040; strap = (volatile u32 *)(MMIOBase + 0x15030); *strap = 0x00001002; strap = (volatile u32 *)(MMIOBase + 0x15040); *strap = 0x00000000; strap = (volatile u32 *)(MMIOBase + 0x15050); *strap = 0x00000000; strap = (volatile u32 *)(MMIOBase + 0x15220); *strap = 0x03c03800; strap = (volatile u32 *)(MMIOBase + 0x15060); *strap = 0x00000000; /* BIF switches into normal functional mode. */ set_nbmisc_enable_bits(nb_dev, 0x1e, 1<<4 | 1<<5, 1<<5); /* NB Revision is A12 or newer */ if (get_nb_rev(nb_dev) >= REV_RS780_A12) set_nbmisc_enable_bits(nb_dev, 0x1e, 1<<9, 1<<9); /* Restore APC04, APC18, APC24. */ pci_write_config32(dev, 0x04, apc04); pci_write_config32(dev, 0x18, apc18); pci_write_config32(dev, 0x24, apc24); /* Enable PCIe configuration space. */ set_htiu_enable_bits(nb_dev, 0x32, 0, 1<<28); // restore processor pcie mmio if (is_family10h()) wrmsr (0xc0010058, pcie_mmio_save); printk(BIOS_INFO, "GC is accessible from now on.\n"); } /*********************************************** * 0:00.0 NBCFG : * 0:00.1 CLK : bit 0 of nb_cfg 0x4c : 0 - disable, default * 0:01.0 P2P Internal: * 0:02.0 P2P : bit 2 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:03.0 P2P : bit 3 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:04.0 P2P : bit 4 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:05.0 P2P : bit 5 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:06.0 P2P : bit 6 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:07.0 P2P : bit 7 of nbmiscind 0x0c : 0 - enable, default + 32 * 2 * 0:08.0 NB2SB : bit 6 of nbmiscind 0x00 : 0 - disable, default + 32 * 1 * case 0 will be called twice, one is by cpu in hypertransport.c line458, * the other is by rs780. ***********************************************/ void rs780_enable(device_t dev) { device_t nb_dev = 0, sb_dev = 0; int dev_ind; printk(BIOS_INFO, "rs780_enable: dev=%p, VID_DID=0x%x\n", dev, get_vid_did(dev)); nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0)); if (!nb_dev) { die("rs780_enable: CAN NOT FIND RS780 DEVICE, HALT!\n"); /* NOT REACHED */ } /* sb_dev (dev 8) is a bridge that links to southbridge. */ sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0)); if (!sb_dev) { die("rs780_enable: CAN NOT FIND SB bridge, HALT!\n"); /* NOT REACHED */ } dev_ind = dev->path.pci.devfn >> 3; switch (dev_ind) { case 0: /* bus0, dev0, fun0; */ printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n"); enable_pcie_bar3(nb_dev); /* PCIEMiscInit */ config_gpp_core(nb_dev, sb_dev); rs780_gpp_sb_init(nb_dev, sb_dev, 8); /* 5.10.8.4. set SB payload size: 64byte */ set_pcie_enable_bits(nb_dev, 0x10 | PCIE_CORE_INDEX_GPPSB, 3 << 11, 2 << 11); /* Bus0Dev0Fun1Clock control init, we have to do it here, for dev0 Fun1 doesn't have a vendor or device ID */ rs780_config_misc_clk(nb_dev); rs780_nb_pci_table(nb_dev); break; case 1: /* bus0, dev1, APC. */ printk(BIOS_INFO, "Bus-0, Dev-1, Fun-0.\n"); rs780_nb_gfx_dev_table(nb_dev, dev); break; case 2: /* bus0, dev2,3, two GFX */ case 3: printk(BIOS_INFO, "Bus-0, Dev-2,3, Fun-0. enable=%d\n", dev->enabled); set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind, (dev->enabled ? 0 : 1) << dev_ind); if (dev->enabled) rs780_gfx_init(nb_dev, dev, dev_ind); break; case 4: /* bus0, dev4-7, four GPPSB */ case 5: case 6: case 7: printk(BIOS_INFO, "Bus-0, Dev-4,5,6,7, Fun-0. enable=%d\n", dev->enabled); set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind, (dev->enabled ? 0 : 1) << dev_ind); if (dev->enabled) rs780_gpp_sb_init(nb_dev, dev, dev_ind); break; case 8: /* bus0, dev8, SB */ printk(BIOS_INFO, "Bus-0, Dev-8, Fun-0. enable=%d\n", dev->enabled); set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6, (dev->enabled ? 1 : 0) << 6); if (dev->enabled) rs780_gpp_sb_init(nb_dev, dev, dev_ind); break; case 9: /* bus 0, dev 9,10, GPP */ case 10: printk(BIOS_INFO, "Bus-0, Dev-9, 10, Fun-0. enable=%d\n", dev->enabled); set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind), (dev->enabled ? 0 : 1) << (7 + dev_ind)); if (dev->enabled) rs780_gpp_sb_init(nb_dev, dev, dev_ind); if (dev_ind == 10) disable_pcie_bar3(nb_dev); break; default: printk(BIOS_DEBUG, "unknown dev: %s\n", dev_path(dev)); } } struct chip_operations southbridge_amd_rs780_ops = { CHIP_NAME("ATI RS780") .enable_dev = rs780_enable, };