| /* |
| * 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. |
| */ |
| |
| #include <console/console.h> |
| |
| #include <arch/io.h> |
| |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include "sb800.h" |
| #include "smbus.h" |
| |
| static struct device *find_sm_dev(struct device *dev, u32 devfn) |
| { |
| struct device *sm_dev; |
| |
| sm_dev = pcidev_path_behind(dev->bus, devfn); |
| if (!sm_dev) |
| return sm_dev; |
| |
| if ((sm_dev->vendor != PCI_VENDOR_ID_ATI) || |
| ((sm_dev->device != PCI_DEVICE_ID_ATI_SB800_SM))) { |
| u32 id; |
| id = pci_read_config32(sm_dev, PCI_VENDOR_ID); |
| if ((id != |
| (PCI_VENDOR_ID_ATI | (PCI_DEVICE_ID_ATI_SB800_SM << 16)))) |
| { |
| sm_dev = 0; |
| } |
| } |
| |
| return sm_dev; |
| } |
| |
| void set_sm_enable_bits(struct device *sm_dev, u32 reg_pos, u32 mask, u32 val) |
| { |
| u32 reg_old, reg; |
| reg = reg_old = pci_read_config32(sm_dev, reg_pos); |
| reg &= ~mask; |
| reg |= val; |
| if (reg != reg_old) { |
| pci_write_config32(sm_dev, reg_pos, reg); |
| } |
| } |
| |
| static void pmio_write_index(u16 port_base, u8 reg, u8 value) |
| { |
| outb(reg, port_base); |
| outb(value, port_base + 1); |
| } |
| |
| static u8 pmio_read_index(u16 port_base, u8 reg) |
| { |
| outb(reg, port_base); |
| return inb(port_base + 1); |
| } |
| |
| void pm_iowrite(u8 reg, u8 value) |
| { |
| pmio_write_index(PM_INDEX, reg, value); |
| } |
| |
| u8 pm_ioread(u8 reg) |
| { |
| return pmio_read_index(PM_INDEX, reg); |
| } |
| |
| void pm2_iowrite(u8 reg, u8 value) |
| { |
| pmio_write_index(PM2_INDEX, reg, value); |
| } |
| |
| u8 pm2_ioread(u8 reg) |
| { |
| return pmio_read_index(PM2_INDEX, reg); |
| } |
| |
| static void set_pmio_enable_bits(u32 reg_pos, u32 mask, u32 val) |
| { |
| u8 reg_old, reg; |
| reg = reg_old = pm_ioread(reg_pos); |
| reg &= ~mask; |
| reg |= val; |
| if (reg != reg_old) { |
| pm_iowrite(reg_pos, reg); |
| } |
| } |
| |
| u16 tx_convert_table[] = { |
| [0x0] = 0xFFFF, |
| [0x1] = 0xFFFE, |
| [0x2] = 0xFFFC, |
| [0x3] = 0xFFF8, |
| [0x4] = 0xFFF0, |
| [0x5] = 0xFFE0, |
| [0x6] = 0xFFC0, |
| [0x7] = 0xFF80, |
| [0x8] = 0xFF00, |
| [0x9] = 0xFE00, |
| [0xA] = 0xFC00, |
| [0xB] = 0xF800, |
| [0xC] = 0xF000, |
| [0xD] = 0xE000, |
| [0xE] = 0xC000, |
| [0xF] = 0x8000 |
| }; |
| |
| u16 rx_convert_table[] = { |
| [0x0] = 0x0001, |
| [0x1] = 0x0003, |
| [0x2] = 0x0007, |
| [0x3] = 0x000F, |
| [0x4] = 0x001F, |
| [0x5] = 0x003F, |
| [0x6] = 0x007F, |
| [0x7] = 0x00FF, |
| [0x8] = 0x01FF, |
| [0x9] = 0x03FF, |
| [0xA] = 0x07FF, |
| [0xB] = 0x0FFF, |
| [0xC] = 0x1FFF, |
| [0xD] = 0x3FFF, |
| [0xE] = 0x7FFF, |
| [0xF] = 0xFFFF |
| }; |
| |
| /* PCIe General Purpose Ports */ |
| /* v:1814, d:3090. cp421A */ |
| static void set_sb800_gpp(struct device *dev) |
| { |
| struct southbridge_amd_sb800_config *conf; |
| u32 imp_rb, lc_status; |
| u8 port; |
| |
| conf = dev->chip_info; |
| port = dev->path.pci.devfn & 3; |
| |
| /* 5.1 GPP Lane Configuration */ |
| /* To support one of 4 legal configurations: |
| * 0000: PortA lanes[3:0] |
| * 0001: N/A |
| * 0010: PortA lanes[1:0], PortB lanes[3:2] |
| * 0011: PortA lanes[1:0], PortB lane2, PortC lane3 |
| * 0100: PortA lane0, PortB lane1, PortC lane2, PortD lane3. |
| * Other combinations are not supported. |
| */ |
| /* CIMx: Set abcfg:0x90[20] = 1 to enable GPP bridge multi-function */ |
| abcfg_reg(0x90, 1 << 20, 1 << 20); |
| |
| printk(BIOS_DEBUG, "set_sb800_gpp() 1\n"); |
| //abcfg_reg(0xC0, 0xF << 0, 0x4 << 0); /* bimini:4; tarpon:3 */ |
| abcfg_reg(0xC0, 0xF << 0, (conf->gpp_configuration & 0xF) << 0); /* bimini:4; tarpon:3 */ |
| |
| printk(BIOS_DEBUG, "set_sb800_gpp() 2,\n"); |
| /* 5.2 Enabling GPP Port A/B/C/D */ |
| //abcfg_reg(0xC0, 0xF << 4, 0x1 << 4); |
| abcfg_reg(0xC0, 0xF << 4, dev->enabled ? 0x1 << (4 + port) : 0); |
| |
| printk(BIOS_DEBUG, "set_sb800_gpp() 3\n"); |
| /* 5.3 Releasing GPP Reset */ |
| abcfg_reg(0xC0, 0x1 << 8, 0x0 << 8); |
| |
| /* release training */ |
| abcfg_reg(0xC0, 0xF << 12, 0x0 << 12); |
| /* 5.4 Power Saving Feature for GPP Lanes. Skip */ |
| /* 5.5 PCIe Ports De-emphasis Settings. Skip */ |
| abcfg_reg(0x340, 1 << 21, 0 << 21); |
| abcfg_reg(0x344, 1 << 21, 0 << 21); |
| abcfg_reg(0x348, 1 << 21, 0 << 21); |
| abcfg_reg(0x34C, 1 << 21, 0 << 21); |
| /* 5.6 PCIe PHY Calibration Impedance Value Setting */ |
| /* AXINDC_Reg 0x60: TX_IMP_RB */ |
| outl(0x30, 0xCD8); |
| outl(0x60, 0xCDC); |
| outl(0x34, 0xCD8); |
| imp_rb = inl(0xCDC); |
| |
| printk(BIOS_DEBUG, "imp_rb 1=%x\n", imp_rb); |
| /* tx */ |
| abcfg_reg(0xA4, 0x1FFF, (rx_convert_table[(imp_rb>>8)&0xF]) & 0x1FFF); |
| abcfg_reg(0xA4, 0x1FFF<<19, ((tx_convert_table[(imp_rb>>4)&0xF] >> 3) & 0x1FFF) << 19); |
| |
| /* 5.4. */ |
| abcfg_reg(0xA0, 3 << 12, 3 << 12); |
| |
| axindxp_reg(0xa0, 0xf<<4, 3<<4); |
| rcindxp_reg(0xA0, 0, 0xF << 4, 1 << 0); |
| rcindxp_reg(0xA0, 1, 0xF << 4, 1 << 0); |
| rcindxp_reg(0xA0, 2, 0xF << 4, 1 << 0); |
| rcindxp_reg(0xA0, 3, 0xF << 4, 1 << 0); |
| |
| /* 5.8 Disabling Serial Number Capability */ |
| abcfg_reg(0x330, 1 << 26, 0 << 26); |
| |
| abcfg_reg(0x50, 0xFFFFFFFF, 0x04000004); |
| abcfg_reg(0x54, 0xFFFFFFFF, 0x00040000); |
| abcfg_reg(0x80, 0xFFFFFFFF, 0x03060001); |
| abcfg_reg(0x90, 0xFFFFFFFF, 0x00300000); |
| abcfg_reg(0x98, 0xFFFFFFFF, 0x03034700); |
| |
| pci_write_config32(dev, 0x80, 0x00000006); |
| /* Set PCIEIND_P:PCIE_RX_CNTL[RX_RCB_CPL_TIMEOUT_MODE] (0x70:[19]) = 1 */ |
| rcindxp_reg(0x70, 0, 1 << 19, 1 << 19); |
| //outl(3<<29|0<<24|0x70, 0xCD8); |
| /* Set PCIEIND_P:PCIE_TX_CNTL[TX_FLUSH_TLP_DIS] (0x20:[19]) = 0 */ |
| rcindxp_reg(0x20, 0, 1 << 19, 0 << 19); |
| printk(BIOS_DEBUG, "imp_rb 5=%x\n", imp_rb); |
| outl(3<<29|0<<24|0xA5, 0xCD8); |
| lc_status = inl(0xCDC); |
| printk(BIOS_DEBUG, "lc_status=%x\n", lc_status); |
| } |
| |
| void sb800_enable(struct device *dev) |
| { |
| struct device *sm_dev = NULL; |
| struct device *bus_dev = NULL; |
| int index = -1; |
| u32 deviceid; |
| u32 vendorid; |
| |
| /* struct southbridge_ati_sb800_config *conf; */ |
| /* conf = dev->chip_info; */ |
| int i; |
| |
| u32 devfn, dword; |
| |
| printk(BIOS_DEBUG, "sb800_enable()\n"); |
| |
| /* |
| * 0:11.0 SATA bit 8 of pmio 0xDA : 1 - enable |
| * 0:12.0 OHCI-USB1 bit 0 of pmio 0xEF |
| * 0:12.2 EHCI-USB1 bit 1 of pmio 0xEF |
| * 0:13.0 OHCI-USB2 bit 2 of pmio 0xEF |
| * 0:13.2 EHCI-USB2 bit 3 of pmio 0xEF |
| * 0:16.1 OHCI-USB3 bit 4 of pmio 0xEF |
| * 0:16.2 EHCI-USB3 bit 5 of pmio 0xEF |
| * 0:14.5 OHCI-USB4 bit 6 of pmio 0xEF |
| * 0:14.0 SMBUS 0 |
| * 0:14.1 IDE 1 |
| * 0:14.2 HDA bit 0 of pm_io 0xEB : 1 - enable |
| * 0:14.3 LPC bit 0 of pm_io 0xEC : 1 - enable |
| * 0:14.4 PCI bit 0 of pm_io 0xEA : 0 - enable |
| * 0:14.6 GEC bit 0 of pm_io 0xF6 : 0 - enable |
| */ |
| if (dev->device == 0x0000) { |
| vendorid = pci_read_config32(dev, PCI_VENDOR_ID); |
| deviceid = (vendorid >> 16) & 0xffff; |
| vendorid &= 0xffff; |
| } else { |
| vendorid = dev->vendor; |
| deviceid = dev->device; |
| } |
| bus_dev = dev->bus->dev; |
| if ((bus_dev->vendor == PCI_VENDOR_ID_ATI) && |
| (bus_dev->device == PCI_DEVICE_ID_ATI_SB800_PCI)) { |
| devfn = (bus_dev->path.pci.devfn) & ~7; |
| sm_dev = find_sm_dev(bus_dev, devfn); |
| if (!sm_dev) |
| return; |
| |
| /* something under 00:01.0 */ |
| switch (dev->path.pci.devfn) { |
| case 5 << 3: |
| ; |
| } |
| |
| return; |
| } |
| printk(BIOS_DEBUG, "sb800_enable() 1\n"); |
| |
| i = (dev->path.pci.devfn) & ~7; |
| i += (3 << 3); |
| for (devfn = (0x14 << 3); devfn <= i; devfn += (1 << 3)) { |
| sm_dev = find_sm_dev(dev, devfn); |
| if (sm_dev) |
| break; |
| } |
| if (!sm_dev) |
| return; |
| printk(BIOS_DEBUG, "sb800_enable() 2\n"); |
| |
| switch (dev->path.pci.devfn - (devfn - (0x14 << 3))) { |
| case (0x11 << 3) | 0: |
| index = 8; |
| set_pmio_enable_bits(0xDA, 1 << 0, |
| (dev->enabled ? 1 : 0) << 0); |
| /* Set the device ID of SATA as 0x4390 to reduce the confusing. */ |
| dword = pci_read_config32(dev, 0x40); |
| dword |= 1 << 0; |
| pci_write_config32(dev, 0x40, dword); |
| pci_write_config16(dev, 0x2, 0x4390); |
| dword &= ~1; |
| pci_write_config32(dev, 0x40, dword);//for (;;); |
| index += 32 * 3; |
| break; |
| case (0x12 << 3) | 0: |
| case (0x12 << 3) | 2: |
| index = (dev->path.pci.devfn & 0x3) / 2; |
| set_pmio_enable_bits(0xEF, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| break; |
| case (0x13 << 3) | 0: |
| case (0x13 << 3) | 2: |
| index = (dev->path.pci.devfn & 0x3) / 2 + 2; |
| set_pmio_enable_bits(0xEF, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| index += 32 * 2; |
| break; |
| case (0x14 << 3) | 0: |
| index = 0; |
| break; |
| case (0x14 << 3) | 1: |
| index = 1; |
| set_pmio_enable_bits(0xDA, 1 << 3, |
| (dev->enabled ? 0 : 1) << 3); |
| break; |
| case (0x14 << 3) | 2: |
| index = 0; |
| set_pmio_enable_bits(0xEB, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| break; |
| case (0x14 << 3) | 3: |
| index = 0; |
| set_pmio_enable_bits(0xEC, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| index += 32 * 1; |
| break; |
| case (0x14 << 3) | 4: |
| index = 0; |
| set_pmio_enable_bits(0xEA, 1 << index, |
| (dev->enabled ? 0 : 1) << index); |
| break; |
| case (0x14 << 3) | 5: |
| index = 6; |
| set_pmio_enable_bits(0xEF, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| break; |
| case (0x14 << 3) | 6: |
| index = 0; |
| set_pmio_enable_bits(0xF6, 1 << index, |
| (dev->enabled ? 0 : 1) << index); |
| break; |
| case (0x15 << 3) | 0: |
| set_sb800_gpp(dev); |
| index = 4; |
| break; |
| case (0x15 << 3) | 1: |
| case (0x15 << 3) | 2: |
| case (0x15 << 3) | 3: |
| break; |
| case (0x16 << 3) | 0: |
| case (0x16 << 3) | 2: |
| index = (dev->path.pci.devfn & 0x3) / 2 + 4; |
| set_pmio_enable_bits(0xEF, 1 << index, |
| (dev->enabled ? 1 : 0) << index); |
| break; |
| default: |
| printk(BIOS_DEBUG, "unknown dev: %s deviceid=%4x\n", dev_path(dev), |
| deviceid); |
| } |
| } |
| |
| struct chip_operations southbridge_amd_sb800_ops = { |
| CHIP_NAME("ATI SB800") |
| .enable_dev = sb800_enable, |
| }; |