| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2010 Advanced Micro Devices, Inc. |
| * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
| * |
| * 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. |
| */ |
| |
| #include <console/console.h> |
| #include <arch/io.h> |
| #include <arch/acpi_ivrs.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <cpu/x86/msr.h> |
| #include <cpu/amd/mtrr.h> |
| #include <stdlib.h> |
| #include <delay.h> |
| #include <option.h> |
| #include "sr5650.h" |
| #include "cmn.h" |
| |
| /* |
| * extern function declaration |
| */ |
| struct resource * sr5650_retrieve_cpu_mmio_resource() { |
| struct device *domain; |
| struct resource *res; |
| |
| for (domain = all_devices; domain; domain = domain->next) { |
| if (domain->bus->dev->path.type != DEVICE_PATH_DOMAIN) |
| continue; |
| res = probe_resource(domain->bus->dev, 0xc0010058); |
| if (res) |
| return res; |
| } |
| |
| return NULL; |
| } |
| |
| /* extension registers */ |
| u32 pci_ext_read_config32(struct device *nb_dev, struct device *dev, u32 reg) |
| { |
| /*get BAR3 base address for nbcfg0x1c */ |
| u32 addr = pci_read_config32(nb_dev, 0x1c) & ~0xF; |
| printk(BIOS_DEBUG, "addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary, |
| dev->path.pci.devfn); |
| addr |= dev->bus->secondary << 20 | /* bus num */ |
| dev->path.pci.devfn << 12 | reg; |
| return *((u32 *) addr); |
| } |
| |
| void pci_ext_write_config32(struct device *nb_dev, struct device *dev, u32 reg_pos, u32 mask, u32 val) |
| { |
| u32 reg_old, reg; |
| |
| /*get BAR3 base address for nbcfg0x1c */ |
| u32 addr = pci_read_config32(nb_dev, 0x1c) & ~0xF; |
| /*printk(BIOS_DEBUG, "write: addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary, |
| dev->path.pci.devfn);*/ |
| addr |= dev->bus->secondary << 20 | /* bus num */ |
| dev->path.pci.devfn << 12 | reg_pos; |
| |
| reg = reg_old = *((u32 *) addr); |
| reg &= ~mask; |
| reg |= val; |
| if (reg != reg_old) { |
| *((u32 *) addr) = reg; |
| } |
| } |
| |
| u32 nbpcie_p_read_index(struct device *dev, u32 index) |
| { |
| return nb_read_index((dev), NBPCIE_INDEX, (index)); |
| } |
| |
| void nbpcie_p_write_index(struct device *dev, u32 index, u32 data) |
| { |
| nb_write_index((dev), NBPCIE_INDEX, (index), (data)); |
| } |
| |
| u32 nbpcie_ind_read_index(struct device *nb_dev, u32 index) |
| { |
| return nb_read_index((nb_dev), NBPCIE_INDEX, (index)); |
| } |
| |
| void nbpcie_ind_write_index(struct device *nb_dev, u32 index, u32 data) |
| { |
| nb_write_index((nb_dev), NBPCIE_INDEX, (index), (data)); |
| } |
| |
| uint32_t l2cfg_ind_read_index(struct device *nb_dev, uint32_t index) |
| { |
| return nb_read_index((nb_dev), L2CFG_INDEX, (index)); |
| } |
| |
| void l2cfg_ind_write_index(struct device *nb_dev, uint32_t index, uint32_t data) |
| { |
| nb_write_index((nb_dev), L2CFG_INDEX | (0x1 << 8), (index), (data)); |
| } |
| |
| uint32_t l1cfg_ind_read_index(struct device *nb_dev, uint32_t index) |
| { |
| return nb_read_index((nb_dev), L1CFG_INDEX, (index)); |
| } |
| |
| void l1cfg_ind_write_index(struct device *nb_dev, uint32_t index, uint32_t data) |
| { |
| nb_write_index((nb_dev), L1CFG_INDEX | (0x1 << 31), (index), (data)); |
| } |
| |
| /*********************************************************** |
| * To access bar3 we need to program PCI MMIO 7 in K8. |
| * in_out: |
| * 1: enable/enter k8 temp mmio base |
| * 0: disable/restore |
| ***********************************************************/ |
| void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add) |
| { |
| /* K8 Function1 is address map */ |
| struct device *k8_f1 = dev_find_slot(0, PCI_DEVFN(0x18, 1)); |
| struct device *k8_f0 = dev_find_slot(0, PCI_DEVFN(0x18, 0)); |
| |
| if (in_out) { |
| u32 dword, sblk; |
| |
| /* Get SBLink value (HyperTransport I/O Hub Link ID). */ |
| dword = pci_read_config32(k8_f0, 0x64); |
| sblk = (dword >> 8) & 0x3; |
| |
| /* Fill MMIO limit/base pair. */ |
| pci_write_config32(k8_f1, 0xbc, |
| (((pcie_base_add + 0x10000000 - |
| 1) >> 8) & 0xffffff00) | 0x80 | (sblk << 4)); |
| pci_write_config32(k8_f1, 0xb8, (pcie_base_add >> 8) | 0x3); |
| pci_write_config32(k8_f1, 0xb4, |
| (((mmio_base_add + 0x10000000 - |
| 1) >> 8) & 0xffffff00) | (sblk << 4)); |
| pci_write_config32(k8_f1, 0xb0, (mmio_base_add >> 8) | 0x3); |
| } else { |
| pci_write_config32(k8_f1, 0xb8, 0); |
| pci_write_config32(k8_f1, 0xbc, 0); |
| pci_write_config32(k8_f1, 0xb0, 0); |
| pci_write_config32(k8_f1, 0xb4, 0); |
| } |
| } |
| |
| void PcieReleasePortTraining(struct device *nb_dev, struct device *dev, u32 port) |
| { |
| switch (port) { |
| case 2: /* GPP1, bit4-5 */ |
| case 3: |
| set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, |
| 1 << (port + 2), 0 << (port + 2)); |
| break; |
| case 4: /* GPP3a, bit20-24 */ |
| case 5: |
| case 6: |
| case 7: |
| set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, |
| 1 << (port + 17), 0 << (port + 17)); |
| break; |
| case 9: /* GPP3a, bit25,26 */ |
| case 10: |
| set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, |
| 1 << (port + 16), 0 << (port + 16)); |
| break; |
| case 11: /* GPP2, bit6-7 */ |
| case 12: |
| set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, |
| 1 << (port - 5), 0 << (port - 5)); |
| break; |
| case 13: /* GPP3b, bit4 of NBMISCIND:0x2A */ |
| set_nbmisc_enable_bits(nb_dev, 0x2A, |
| 1 << 4, 0 << 4); |
| break; |
| } |
| } |
| |
| /******************************************************************************************************** |
| * Output: |
| * 0: no device is present. |
| * 1: device is present and is trained. |
| ********************************************************************************************************/ |
| u8 PcieTrainPort(struct device *nb_dev, struct device *dev, u32 port) |
| { |
| u16 count = 5000; |
| u32 lc_state, reg, current_link_width, lane_mask; |
| u8 current, res = 0; |
| u32 gpp_sb_sel = 0; |
| |
| switch (port) { |
| case 2: |
| case 3: |
| gpp_sb_sel = PCIE_CORE_INDEX_GPP1; |
| break; |
| case 4 ... 7: |
| case 9: |
| case 10: |
| gpp_sb_sel = PCIE_CORE_INDEX_GPP3a; |
| break; |
| case 11: |
| case 12: |
| gpp_sb_sel = PCIE_CORE_INDEX_GPP2; |
| break; |
| case 13: |
| gpp_sb_sel = PCIE_CORE_INDEX_GPP3b; |
| break; |
| } |
| |
| while (count--) { |
| udelay(40200); |
| lc_state = nbpcie_p_read_index(dev, 0xa5); /* lc_state */ |
| printk(BIOS_DEBUG, "PcieLinkTraining port=%x:lc current state=%x\n", |
| port, lc_state); |
| current = lc_state & 0x3f; /* get LC_CURRENT_STATE, bit0-5 */ |
| |
| switch (current) { |
| /* 0x00-0x04 means no device is present */ |
| case 0x06: |
| /* read back current link width [6:4]. */ |
| current_link_width = (nbpcie_p_read_index(dev, 0xA2) >> 4) & 0x7; |
| /* 4 means 7:4 and 15:12 |
| * 3 means 7:2 and 15:10 |
| * 2 means 7:1 and 15:9 |
| * ignoring the reversal case |
| */ |
| lane_mask = (0xFF << (current_link_width - 2) * 2) & 0xFF; |
| reg = nbpcie_ind_read_index(nb_dev, 0x65 | gpp_sb_sel); |
| reg |= lane_mask << 8 | lane_mask; |
| /* NOTE: See the comments in rs780_pcie.c |
| * switching_gppsb_configurations |
| * In CIMx 4.5.0 and RPR, 4c is done before 5 & 6. |
| * But in this way, a x4 device in port B (dev 4) of |
| * Configuration B can only be detected as x1, instead |
| * of x4. When the port B is being trained, the |
| * LC_CURRENT_STATE is 6 and the LC_LINK_WIDTH_RD is 1. |
| * We have to set the PCIEIND:0x65 as 0xE0E0 and reset |
| * the slot. Then the card seems to work in x1 mode. |
| */ |
| reg = 0xE0E0; /*I think that the lane_mask calc above is wrong, and this can't be hardcoded because the configuration changes.*/ |
| nbpcie_ind_write_index(nb_dev, 0x65 | gpp_sb_sel, reg); |
| printk(BIOS_DEBUG, "link_width=%x, lane_mask=%x", |
| current_link_width, lane_mask); |
| set_pcie_reset(); |
| mdelay(1); |
| set_pcie_dereset(); |
| break; |
| case 0x07: /* device is in compliance state (training sequence is done). Move to train the next device */ |
| res = 1; |
| count = 0; |
| break; |
| case 0x10: |
| reg = |
| pci_ext_read_config32(nb_dev, dev, |
| PCIE_VC0_RESOURCE_STATUS); |
| printk(BIOS_DEBUG, "PcieTrainPort reg=0x%x\n", reg); |
| /* check bit1 */ |
| if (reg & VC_NEGOTIATION_PENDING) { /* bit1=1 means the link needs to be re-trained. */ |
| /* set bit8=1, bit0-2=bit4-6 */ |
| u32 tmp; |
| reg = nbpcie_p_read_index(dev, PCIE_LC_LINK_WIDTH); |
| tmp = (reg >> 4) & 0x7; /* get bit4-6 */ |
| reg &= 0xfff8; /* clear bit0-2 */ |
| reg += tmp; /* merge */ |
| reg |= 1 << 8; |
| nbpcie_p_write_index(dev, PCIE_LC_LINK_WIDTH, reg); |
| count++; /* CIM said "keep in loop"? */ |
| } else { |
| res = 1; |
| count = 0; |
| } |
| break; |
| default: |
| /* CIMx Unknown Workaround - There is a device that won't train. Try to reset it. */ |
| /* if there are no device resets and nothing works, CIMx does a cf9 system reset (yikes!) */ |
| set_pcie_reset(); |
| mdelay(1); |
| set_pcie_dereset(); |
| res = 0; |
| count = 0; /* break loop */ |
| break; |
| } |
| } |
| return res; |
| } |
| |
| /* |
| * Set Top Of Memory below and above 4G. |
| */ |
| void sr5650_set_tom(struct device *nb_dev) |
| { |
| msr_t sysmem; |
| |
| /* The system top memory in SR56X0. */ |
| sysmem = rdmsr(0xc001001A); |
| printk(BIOS_DEBUG, "Sysmem TOM = %x_%x\n", sysmem.hi, sysmem.lo); |
| pci_write_config32(nb_dev, 0x90, sysmem.lo); |
| |
| sysmem = rdmsr(0xc001001D); |
| printk(BIOS_DEBUG, "Sysmem TOM2 = %x_%x\n", sysmem.hi, sysmem.lo); |
| htiu_write_index(nb_dev, 0x31, sysmem.hi); |
| htiu_write_index(nb_dev, 0x30, sysmem.lo | 1); |
| } |
| |
| u32 get_vid_did(struct device *dev) |
| { |
| return pci_read_config32(dev, 0); |
| } |
| |
| void detect_and_enable_iommu(struct device *iommu_dev) { |
| uint32_t dword; |
| uint8_t l1_target; |
| unsigned char iommu; |
| void * mmio_base; |
| |
| iommu = 1; |
| get_option(&iommu, "iommu"); |
| |
| if (iommu) { |
| printk(BIOS_DEBUG, "Initializing IOMMU\n"); |
| |
| struct device *nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0)); |
| |
| if (!nb_dev) { |
| printk(BIOS_WARNING, "Unable to find SR5690 device! IOMMU NOT initialized\n"); |
| return; |
| } |
| |
| mmio_base = (void*)(pci_read_config32(iommu_dev, 0x44) & 0xffffc000); |
| |
| // if (get_nb_rev(nb_dev) == REV_SR5650_A11) { |
| // dword = pci_read_config32(iommu_dev, 0x6c); |
| // dword &= ~(0x1 << 8); |
| // pci_write_config32(iommu_dev, 0x6c, dword); |
| // } |
| |
| dword = pci_read_config32(iommu_dev, 0x50); |
| dword &= ~(0x1 << 22); |
| pci_write_config32(iommu_dev, 0x50, dword); |
| |
| dword = pci_read_config32(iommu_dev, 0x44); |
| dword |= 0x1; |
| pci_write_config32(iommu_dev, 0x44, dword); |
| |
| write32((void*)(mmio_base + 0x8), 0x0); |
| write32((void*)(mmio_base + 0xc), 0x08000000); |
| write32((void*)(mmio_base + 0x10), 0x0); |
| write32((void*)(mmio_base + 0x2008), 0x0); |
| write32((void*)(mmio_base + 0x2010), 0x0); |
| |
| /* IOMMU L1 initialization */ |
| for (l1_target = 0; l1_target < 6; l1_target++) { |
| dword = l1cfg_ind_read_index(nb_dev, (l1_target << 16) + 0xc); |
| dword |= (0x7 << 28); |
| l1cfg_ind_write_index(nb_dev, (l1_target << 16) + 0xc, dword); |
| |
| dword = l1cfg_ind_read_index(nb_dev, (l1_target << 16) + 0x7); |
| dword |= (0x1 << 5); |
| l1cfg_ind_write_index(nb_dev, (l1_target << 16) + 0x7, dword); |
| } |
| |
| /* IOMMU L2 initialization */ |
| dword = l2cfg_ind_read_index(nb_dev, 0xc); |
| dword |= (0x7 << 29); |
| l2cfg_ind_write_index(nb_dev, 0xc, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x10); |
| dword &= ~(0x3 << 8); |
| dword |= (0x2 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x10, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x14); |
| dword &= ~(0x3 << 8); |
| dword |= (0x2 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x14, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x18); |
| dword &= ~(0x3 << 8); |
| dword |= (0x2 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x18, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x1c); |
| dword &= ~(0x3 << 8); |
| dword |= (0x2 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x1c, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x50); |
| dword &= ~(0x3 << 8); |
| dword |= (0x2 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x50, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x10); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x10, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x14); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x14, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x18); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x18, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x1c); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x1c, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x50); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x50, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x6); |
| dword |= (0x1 << 7); |
| l2cfg_ind_write_index(nb_dev, 0x6, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x44); |
| dword |= (0x1 << 0); |
| l2cfg_ind_write_index(nb_dev, 0x44, dword); |
| |
| // if (get_nb_rev(nb_dev) == REV_SR5650_A21) { |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 1); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x44); |
| dword |= (0x1 << 1); |
| l2cfg_ind_write_index(nb_dev, 0x44, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 2); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 3); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x44); |
| dword |= (0x1 << 3); |
| l2cfg_ind_write_index(nb_dev, 0x44, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x6); |
| dword |= (0x1 << 5); |
| l2cfg_ind_write_index(nb_dev, 0x6, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x6); |
| dword |= (0x1 << 6); |
| l2cfg_ind_write_index(nb_dev, 0x6, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 5); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x44); |
| dword |= (0x1 << 4); |
| l2cfg_ind_write_index(nb_dev, 0x44, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 6); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x7); |
| dword |= (0x1 << 7); |
| l2cfg_ind_write_index(nb_dev, 0x7, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x6); |
| dword |= (0x1 << 8); |
| l2cfg_ind_write_index(nb_dev, 0x6, dword); |
| // } |
| |
| l2cfg_ind_write_index(nb_dev, 0x52, 0xf0000002); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x80); |
| dword |= (0x1 << 0); |
| l2cfg_ind_write_index(nb_dev, 0x80, dword); |
| |
| dword = l2cfg_ind_read_index(nb_dev, 0x30); |
| dword |= (0x1 << 0); |
| l2cfg_ind_write_index(nb_dev, 0x30, dword); |
| } |
| } |
| |
| void sr5650_iommu_read_resources(struct device *dev) |
| { |
| unsigned char iommu; |
| struct resource *res; |
| |
| iommu = 1; |
| get_option(&iommu, "iommu"); |
| |
| /* Get the normal pci resources of this device */ |
| pci_dev_read_resources(dev); |
| |
| if (iommu) { |
| /* Request MMIO range allocation */ |
| res = new_resource(dev, 0x44); /* IOMMU */ |
| res->base = 0x0; |
| res->size = 0x4000; |
| res->limit = 0xFFFFFFFFUL; /* res->base + res->size -1; */ |
| res->align = 14; /* 16k alignment */ |
| res->gran = 14; |
| res->flags = IORESOURCE_MEM | IORESOURCE_RESERVE; |
| } |
| |
| compact_resources(dev); |
| } |
| |
| void sr5650_iommu_set_resources(struct device *dev) |
| { |
| unsigned char iommu; |
| struct resource *res; |
| |
| iommu = 1; |
| get_option(&iommu, "iommu"); |
| |
| /* Get the normal pci resources of this device */ |
| pci_dev_read_resources(dev); |
| |
| if (iommu) { |
| /* Get the allocated range */ |
| res = find_resource(dev, 0x44); |
| |
| if (res->base == 0) { |
| printk(BIOS_WARNING, "Unable to allocate MMIO range to IOMMU\n"); |
| } |
| |
| /* Assign the range to hardware */ |
| pci_write_config32(dev, 0x44, res->base & 0xffffc000); |
| pci_write_config32(dev, 0x48, 0x0); |
| } |
| |
| /* Run standard resource set routine */ |
| pci_dev_set_resources(dev); |
| } |
| |
| void sr5650_iommu_enable_resources(struct device *dev) |
| { |
| detect_and_enable_iommu(dev); |
| } |
| |
| void sr5650_nb_pci_table(struct device *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); |
| //Reg4Ch[1]=1 (APIC_ENABLE) force CPU request with address 0xFECx_xxxx to south-bridge |
| //Reg4Ch[6]=1 (BMMsgEn) enable BM_Set message generation |
| pci_write_config8(nb_dev, 0x4c, 0x42); |
| temp8 = pci_read_config8(nb_dev, 0x4e); |
| temp8 |= 0x05; /* BAR1_ENABLE */ |
| pci_write_config8(nb_dev, 0x4e, temp8); |
| |
| temp32 = pci_read_config32(nb_dev, 0x4c); |
| printk(BIOS_DEBUG, "NB_PCI_REG4C = %x.\n", temp32); |
| |
| /* disable GFX debug. */ |
| temp8 = pci_read_config8(nb_dev, 0x8d); |
| temp8 &= ~(1<<1); |
| pci_write_config8(nb_dev, 0x8d, temp8); |
| |
| /* The system top memory in SR56X0. */ |
| sr5650_set_tom(nb_dev); |
| |
| /* Program NB HTIU table. */ |
| //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, 0x0c, 0x3f, 1 | 1<<3); |
| 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); |
| } |
| |
| /*********************************************** |
| * 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 sr5650. |
| ***********************************************/ |
| void sr5650_enable(struct device *dev) |
| { |
| struct device *nb_dev = NULL, *sb_dev = NULL; |
| int dev_ind; |
| struct southbridge_amd_sr5650_config *cfg; |
| |
| printk(BIOS_INFO, "sr5650_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("sr5650_enable: CAN NOT FIND SR5650 DEVICE, HALT!\n"); |
| /* NOT REACHED */ |
| } |
| cfg = (struct southbridge_amd_sr5650_config *)nb_dev->chip_info; |
| |
| /* 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("sr5650_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; */ |
| switch (dev->path.pci.devfn & 0x7) { |
| case 0: |
| printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n"); |
| enable_pcie_bar3(nb_dev); /* PCIEMiscInit */ |
| |
| config_gpp_core(nb_dev, sb_dev); |
| sr5650_gpp_sb_init(nb_dev, sb_dev, 8); |
| |
| sr5650_nb_pci_table(nb_dev); |
| break; |
| case 1: |
| printk(BIOS_INFO, "Bus-0, Dev-0, Fun-1.\n"); |
| break; |
| case 2: |
| printk(BIOS_INFO, "Bus-0, Dev-0, Fun-2.\n"); |
| break; |
| } |
| break; |
| |
| case 2: /* bus0, dev2,3 GPP1 */ |
| 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) |
| sr5650_gpp_sb_init(nb_dev, dev, dev_ind); /* Note, dev 2,3 are generic PCIe ports. */ |
| break; |
| case 4: /* bus0, dev4-7, four GPP3a */ |
| case 5: |
| case 6: |
| case 7: |
| enable_pcie_bar3(nb_dev); /* PCIEMiscInit */ |
| 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) |
| sr5650_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) |
| sr5650_gpp_sb_init(nb_dev, dev, dev_ind); |
| disable_pcie_bar3(nb_dev); |
| break; |
| case 9: /* bus 0, dev 9,10, GPP3a */ |
| case 10: |
| printk(BIOS_INFO, "Bus-0, Dev-9, 10, Fun-0. enable=%d\n", |
| dev->enabled); |
| enable_pcie_bar3(nb_dev); /* PCIEMiscInit */ |
| set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind), |
| (dev->enabled ? 0 : 1) << (7 + dev_ind)); |
| if (dev->enabled) |
| sr5650_gpp_sb_init(nb_dev, dev, dev_ind); |
| /* Don't call disable_pcie_bar3(nb_dev) here, otherwise the screen will crash. */ |
| break; |
| case 11: |
| case 12: /* bus 0, dev 11,12, GPP2 */ |
| printk(BIOS_INFO, "Bus-0, Dev-11,12, 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) |
| sr5650_gpp_sb_init(nb_dev, dev, dev_ind); |
| break; |
| case 13: /* bus 0, dev 12, GPP3b */ |
| set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind), |
| (dev->enabled ? 0 : 1) << (7 + dev_ind)); |
| if (dev->enabled) |
| sr5650_gpp_sb_init(nb_dev, dev, dev_ind); |
| break; |
| default: |
| printk(BIOS_DEBUG, "unknown dev: %s\n", dev_path(dev)); |
| } |
| |
| /* Lock HWInit Register after the last device was done */ |
| if (dev_ind == 13) { |
| sr56x0_lock_hwinitreg(); |
| udelay(cfg->pcie_settling_time); |
| } |
| } |
| |
| static void add_ivrs_device_entries(struct device *parent, struct device *dev, |
| int depth, int linknum, int8_t *root_level, |
| unsigned long *current, uint16_t *length) |
| { |
| uint8_t *p = (uint8_t *) *current; |
| |
| struct device *sibling; |
| struct bus *link; |
| |
| if (!root_level) { |
| root_level = malloc(sizeof(int8_t)); |
| if (root_level == NULL) |
| die("Error: Could not allocate a byte!\n"); |
| *root_level = -1; |
| } |
| |
| if ((dev->path.type == DEVICE_PATH_PCI) && |
| (dev->bus->secondary == 0x0) && (dev->path.pci.devfn == 0x0)) |
| *root_level = depth; |
| |
| if ((dev->path.type == DEVICE_PATH_PCI) && (*root_level != -1) && |
| (depth >= *root_level) && (dev->enabled)) { |
| |
| *p = 0; |
| if (depth == *root_level) { |
| if (dev->path.pci.devfn < (0x1 << 3)) { |
| /* SR5690 control device */ |
| } else if ((dev->path.pci.devfn >= (0x1 << 3)) && |
| (dev->path.pci.devfn < (0xe << 3))) { |
| /* SR5690 PCIe bridge device */ |
| } else if (dev->path.pci.devfn == (0x14 << 3)) { |
| /* SMBUS controller */ |
| p[0] = IVHD_DEV_4_BYTE_SELECT; /* Entry type */ |
| p[1] = dev->path.pci.devfn; /* Device */ |
| p[2] = dev->bus->secondary; /* Bus */ |
| p[3] = IVHD_DTE_LINT_1_PASS | /* Data */ |
| IVHD_DTE_SYS_MGT_NO_TRANS | |
| IVHD_DTE_NMI_PASS | |
| IVHD_DTE_EXT_INT_PASS | |
| IVHD_DTE_INIT_PASS; |
| } else { |
| /* Other southbridge device */ |
| p[0] = IVHD_DEV_4_BYTE_SELECT; /* Entry type */ |
| p[1] = dev->path.pci.devfn; /* Device */ |
| p[2] = dev->bus->secondary; /* Bus */ |
| p[3] = 0x0; /* Data */ |
| } |
| } else if ((dev->hdr_type & 0x7f) == PCI_HEADER_TYPE_NORMAL) { |
| /* Device behind bridge */ |
| if (pci_find_capability(dev, PCI_CAP_ID_PCIE)) { |
| /* Device is PCIe */ |
| p[0] = IVHD_DEV_4_BYTE_SELECT; /* Entry type */ |
| p[1] = dev->path.pci.devfn; /* Device */ |
| p[2] = dev->bus->secondary; /* Bus */ |
| p[3] = 0x0; /* Data */ |
| } else { |
| /* Device is legacy PCI or PCI-X */ |
| p[0] = IVHD_DEV_8_BYTE_ALIAS_SELECT; /* Entry */ |
| p[1] = dev->path.pci.devfn; /* Device */ |
| p[2] = dev->bus->secondary; /* Bus */ |
| p[3] = 0x0; /* Data */ |
| p[4] = 0x0; /* Reserved */ |
| p[5] = parent->path.pci.devfn; /* Device */ |
| p[6] = parent->bus->secondary; /* Bus */ |
| p[7] = 0x0; /* Reserved */ |
| } |
| } |
| |
| if (*p == IVHD_DEV_4_BYTE_SELECT) { |
| *length += 4; |
| *current += 4; |
| } else if (*p == IVHD_DEV_8_BYTE_ALIAS_SELECT) { |
| *length += 8; |
| *current += 8; |
| } |
| } |
| |
| for (link = dev->link_list; link; link = link->next) |
| for (sibling = link->children; sibling; |
| sibling = sibling->sibling) |
| add_ivrs_device_entries(dev, sibling, depth + 1, |
| depth, root_level, current, length); |
| |
| if (depth == 0) |
| free(root_level); |
| } |
| |
| unsigned long acpi_fill_mcfg(unsigned long current) |
| { |
| struct resource *res; |
| resource_t mmconf_base = EXT_CONF_BASE_ADDRESS; |
| |
| if (IS_ENABLED(CONFIG_EXT_CONF_SUPPORT)) { |
| res = sr5650_retrieve_cpu_mmio_resource(); |
| if (res) |
| mmconf_base = res->base; |
| |
| current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current, mmconf_base, 0x0, 0x0, 0x1f); |
| } |
| |
| return current; |
| } |
| |
| static unsigned long acpi_fill_ivrs(acpi_ivrs_t* ivrs, unsigned long current) |
| { |
| uint8_t *p; |
| |
| struct device *nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0)); |
| if (!nb_dev) { |
| printk(BIOS_WARNING, "acpi_fill_ivrs: Unable to locate SR5650 " |
| "device! IVRS table not generated...\n"); |
| return (unsigned long)ivrs; |
| } |
| |
| struct device *iommu_dev = dev_find_slot(0, PCI_DEVFN(0, 2)); |
| if (!iommu_dev) { |
| printk(BIOS_WARNING, "acpi_fill_ivrs: Unable to locate SR5650 " |
| "IOMMU device! IVRS table not generated...\n"); |
| return (unsigned long)ivrs; |
| } |
| |
| ivrs->iv_info = IVINFO_VA_SIZE_64_BITS | IVINFO_PA_SIZE_52_BITS; |
| |
| ivrs->ivhd.type = IVHD_BLOCK_TYPE_LEGACY__FIXED; |
| ivrs->ivhd.flags = IVHD_FLAG_ISOC | |
| IVHD_FLAG_RES_PASS_PW | |
| IVHD_FLAG_PASS_PW | |
| IVHD_FLAG_IOTLB_SUP; |
| |
| ivrs->ivhd.length = sizeof(struct acpi_ivrs_ivhd); |
| |
| /* BDF <bus>:00.2 */ |
| ivrs->ivhd.device_id = 0x2 | (nb_dev->bus->secondary << 8); |
| |
| /* Capability block 0x40 (type 0xf, "Secure device") */ |
| ivrs->ivhd.capability_offset = 0x40; |
| ivrs->ivhd.iommu_base_low = pci_read_config32(iommu_dev, 0x44) & |
| 0xffffc000; |
| ivrs->ivhd.iommu_base_high = pci_read_config32(iommu_dev, 0x48); |
| ivrs->ivhd.pci_segment_group = 0x0; |
| ivrs->ivhd.iommu_info = 0x0; |
| ivrs->ivhd.iommu_info |= (0x14 << IOMMU_INFO_UNIT_ID_SHIFT); |
| ivrs->ivhd.iommu_feature_info = 0x0; |
| |
| /* Describe HPET */ |
| p = (uint8_t *)current; |
| p[0] = IVHD_DEV_8_BYTE_EXT_SPECIAL_DEV; /* Entry type */ |
| p[1] = 0; /* Device */ |
| p[2] = 0; /* Bus */ |
| p[3] = IVHD_DTE_LINT_1_PASS | /* DTE */ |
| IVHD_DTE_LINT_0_PASS | |
| IVHD_DTE_SYS_MGT_INTX_NO_TRANS | |
| IVHD_DTE_NMI_PASS | |
| IVHD_DTE_EXT_INT_PASS | |
| IVHD_DTE_INIT_PASS; |
| p[4] = 0x0; /* HPET number */ |
| p[5] = 0x14 << 3; /* HPET device */ |
| p[6] = nb_dev->bus->secondary; /* HPET bus */ |
| p[7] = IVHD_SPECIAL_DEV_HPET; /* Variety */ |
| ivrs->ivhd.length += 8; |
| current += 8; |
| |
| /* Describe PCI devices */ |
| add_ivrs_device_entries(NULL, all_devices, 0, -1, NULL, ¤t, |
| &ivrs->ivhd.length); |
| |
| /* Describe IOAPICs */ |
| unsigned long prev_current = current; |
| current = acpi_fill_ivrs_ioapic(ivrs, current); |
| ivrs->ivhd.length += (current - prev_current); |
| |
| return current; |
| } |
| |
| unsigned long southbridge_write_acpi_tables(struct device *device, |
| unsigned long current, |
| struct acpi_rsdp *rsdp) |
| { |
| unsigned char iommu; |
| |
| iommu = 1; |
| get_option(&iommu, "iommu"); |
| |
| if (iommu) { |
| acpi_ivrs_t *ivrs; |
| |
| /* IVRS */ |
| current = ALIGN(current, 8); |
| printk(BIOS_DEBUG, "ACPI: * IVRS at %lx\n", current); |
| ivrs = (acpi_ivrs_t *) current; |
| acpi_create_ivrs(ivrs, acpi_fill_ivrs); |
| current += ivrs->header.length; |
| acpi_add_table(rsdp, ivrs); |
| } |
| |
| return current; |
| } |
| |
| static struct pci_operations iommu_ops_pci = { |
| .set_subsystem = pci_dev_set_subsystem, |
| }; |
| |
| static struct device_operations iommu_ops = { |
| .read_resources = sr5650_iommu_read_resources, |
| .set_resources = sr5650_iommu_set_resources, |
| .enable_resources = sr5650_iommu_enable_resources, |
| .write_acpi_tables = southbridge_write_acpi_tables, |
| .init = 0, |
| .scan_bus = 0, |
| .ops_pci = &iommu_ops_pci, |
| }; |
| |
| static const struct pci_driver ht_driver_sr5690 __pci_driver = { |
| .ops = &iommu_ops, |
| .vendor = PCI_VENDOR_ID_ATI, |
| .device = PCI_DEVICE_ID_AMD_SR5650_IOMMU, |
| }; |
| |
| struct chip_operations southbridge_amd_sr5650_ops = { |
| CHIP_NAME("ATI SR5650") |
| .enable_dev = sr5650_enable, |
| }; |