Author: rminnich Date: 2008-10-03 17:47:10 +0200 (Fri, 03 Oct 2008) New Revision: 886
Added: coreboot-v3/southbridge/amd/rs690/ coreboot-v3/southbridge/amd/rs690/cmn.c coreboot-v3/southbridge/amd/rs690/gfx.c coreboot-v3/southbridge/amd/rs690/gfx.dts coreboot-v3/southbridge/amd/rs690/ht.c coreboot-v3/southbridge/amd/rs690/ht.dts coreboot-v3/southbridge/amd/rs690/pcie.c coreboot-v3/southbridge/amd/rs690/pcie.dts coreboot-v3/southbridge/amd/rs690/rs690.c coreboot-v3/southbridge/amd/rs690/rs690.h coreboot-v3/southbridge/amd/rs690/stage1.c Log: First cut at moving from v2 to v3.
There are some interesting issues here. The enables for the various devices are a global bitmask: Define port_enable, (bit map): GFX(2,3), GPP(4,5,6,7)
But v3 would allow us to not have the bit mask. OTOH, we would end up with 3 .dts files for the pcie ports for this enable; good or bad? GOOD --> highly custom configuration possible for each port BAD --> 3 .dts files
Part of the issue is that the link from the dts to the device operations structure is done as follows: struct device_operations sb600_usb2 = { .id = {.type = DEVICE_ID_PCI, {.pci = {.vendor = PCI_VENDOR_ID_ATI, .device = PCI_DEVICE_ID_ATI_SB600_USB2}}},
And this structure is named in the .dts for that device_operations: { device_operations = "sb600_usb2"; };
requiring a different dts node for each set of device_operations.
The device tree compiler generates the code to create these connections and puts that code into the the static_tree.c file.
Having a .dts file for each port gives us a lot of flexibility; but is it too inconvenient? This is an unresolved problem; unhandled at present for the *6* USB ports for the sb600.
Signed-off-by: Ronald G. Minnich rminnich@gmail.com Acked-by: Ronald G. Minnich rminnich@gmail.com
Added: coreboot-v3/southbridge/amd/rs690/cmn.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/cmn.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/cmn.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,311 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci_ids.h> +#include <statictree.h> +#include <config.h> +#include "rs690.h" + +static u32 nb_read_index(struct device * dev, u32 index_reg, u32 index) +{ + pci_write_config32(dev, index_reg, index); + return pci_read_config32(dev, index_reg + 0x4); +} + +static void nb_write_index(struct device * dev, u32 index_reg, u32 index, u32 data) +{ + + pci_write_config32(dev, index_reg, index); + pci_write_config32(dev, index_reg + 0x4, data); + +} + +/* 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); + printk(BIOS_DEBUG, "addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary, + dev->path.u.pci.devfn); + addr |= dev->bus->secondary << 20 | /* bus num */ + dev->path.u.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); + printk(BIOS_DEBUG, "write: addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary, + dev->path.u.pci.devfn); + addr |= dev->bus->secondary << 20 | /* bus num */ + dev->path.u.pci.devfn << 12 | reg_pos; + + reg = reg_old = *((u32 *) addr); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + *((u32 *) addr) = val; + } +} + +u32 nbmisc_read_index(struct device * nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBMISC_INDEX, (index)); +} + +void nbmisc_write_index(struct device * nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBMISC_INDEX, ((index) | 0x80), (data)); +} + +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)); +} + +u32 htiu_read_index(struct device * nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBHTIU_INDEX, (index)); +} + +void htiu_write_index(struct device * nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBHTIU_INDEX, ((index) | 0x100), (data)); +} + +u32 nbmc_read_index(struct device * nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBMC_INDEX, (index)); +} + +void nbmc_write_index(struct device * nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBMC_INDEX, ((index) | 1 << 9), (data)); +} + +void set_nbcfg_enable_bits(struct device * nb_dev, u32 reg_pos, u32 mask, u32 val) +{ + u32 reg_old, reg; + reg = reg_old = pci_read_config32(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + pci_write_config32(nb_dev, reg_pos, reg); + } +} + +void set_nbcfg_enable_bits_8(struct device * nb_dev, u32 reg_pos, u8 mask, u8 val) +{ + u8 reg_old, reg; + reg = reg_old = pci_read_config8(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + pci_write_config8(nb_dev, reg_pos, reg); + } +} + +void set_nbmc_enable_bits(struct device * nb_dev, u32 reg_pos, u32 mask, u32 val) +{ + u32 reg_old, reg; + reg = reg_old = nbmc_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + nbmc_write_index(nb_dev, reg_pos, reg); + } +} + +void set_htiu_enable_bits(struct device * nb_dev, u32 reg_pos, u32 mask, u32 val) +{ + u32 reg_old, reg; + reg = reg_old = htiu_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + htiu_write_index(nb_dev, reg_pos, reg); + } +} + +void set_nbmisc_enable_bits(struct device * nb_dev, u32 reg_pos, u32 mask, u32 val) +{ + u32 reg_old, reg; + reg = reg_old = nbmisc_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + nbmisc_write_index(nb_dev, reg_pos, reg); + } +} + +void set_pcie_enable_bits(struct device * dev, u32 reg_pos, u32 mask, u32 val) +{ + u32 reg_old, reg; + reg = reg_old = nb_read_index(dev, NBPCIE_INDEX, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + nb_write_index(dev, NBPCIE_INDEX, reg_pos, reg); + } +} + +/*********************************************************** +* 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)); + + if (in_out) { + pci_write_config32(k8_f1, 0xbc, + (((pcie_base_add + 0x10000000 - + 1) >> 8) & 0xffffff00) | 0x8); + pci_write_config32(k8_f1, 0xb8, (pcie_base_add >> 8) | 0x3); + pci_write_config32(k8_f1, 0xb4, + ((mmio_base_add + 0x10000000 - + 1) >> 8) & 0xffffff00); + 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: /* GFX, bit4-5 */ + case 3: + set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, + 1 << (port + 2), 0 << (port + 2)); + break; + case 4: /* GPP, bit20-24 */ + case 5: + case 6: + case 7: + set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG, + 1 << (port + 17), 0 << (port + 17)); + 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; + int8_t current, res = 0; + + while (count--) { + mdelay(40); + udelay(200); + 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) { + case 0x00: /* 0x00-0x04 means no device is present */ + case 0x01: + case 0x02: + case 0x03: + case 0x04: + res = 0; + count = 0; + break; + case 0x07: /* device is in compliance state (training sequence is doen). Move to train the next device */ + res = 1; /* TODO: CIM sets it to 0 */ + 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) && 0x3; /* get bit4-6 */ + reg &= 0xfff8; /* clear bit0-2 */ + reg += tmp; /* merge */ + reg |= 1 << 8; + count++; /* CIM said "keep in loop"? */ + } else { + res = 1; + count = 0; + } + break; + default: /* reset pcie */ + res = 0; + count = 0; /* break loop */ + break; + } + } + return res; +} + +/* +* Compliant with CIM_33's ATINB_SetToms. +* Set Top Of Memory below and above 4G. +*/ +void rs690_set_tom(struct device * nb_dev) +{ + /* set TOM */ + pci_write_config32(nb_dev, 0x90, uma_memory_start); + nbmc_write_index(nb_dev, 0x1e, uma_memory_start); +} +
Added: coreboot-v3/southbridge/amd/rs690/gfx.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/gfx.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/gfx.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,582 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 + */ + +/* + * for rs690 internal graphics device + * device id of internal grphics: + * RS690M/T: 0x791f + * RS690: 0x791e + */ +#include <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci_ids.h> +#include <statictree.h> +#include <config.h> +#include "rs690.h" + +#define CLK_CNTL_INDEX 0x8 +#define CLK_CNTL_DATA 0xC + +static u32 clkind_read(struct device * dev, u32 index) +{ + u32 gfx_bar2 = pci_read_config32(dev, 0x18) & ~0xF; + + *(u32*)(gfx_bar2+CLK_CNTL_INDEX) = index & 0x7F; + return *(u32*)(gfx_bar2+CLK_CNTL_DATA); +} + +static void clkind_write(struct device * dev, u32 index, u32 data) +{ + u32 gfx_bar2 = pci_read_config32(dev, 0x18) & ~0xF; + /* printk(BIOS_INFO, "gfx bar 2 %02x\n", gfx_bar2); */ + + *(u32*)(gfx_bar2+CLK_CNTL_INDEX) = index | 1<<7; + *(u32*)(gfx_bar2+CLK_CNTL_DATA) = data; +} + +/* +* pci_dev_read_resources thinks it is a IO type. +* We have to force it to mem type. +*/ +static void rs690_gfx_read_resources(struct device * dev) +{ + printk(BIOS_INFO, "rs690_gfx_read_resources.\n"); + + /* The initial value of 0x24 is 0xFFFFFFFF, which is confusing. + Even if we write 0xFFFFFFFF into it, it will be 0xFFF00000, + which tells us it is a memory address base. + */ + pci_write_config32(dev, 0x24, 0x00000000); + + /* Get the normal pci resources of this device */ + pci_dev_read_resources(dev); + compact_resources(dev); +} + +static void internal_gfx_pci_dev_init(struct device *dev) +{ + unsigned short deviceid, vendorid; + struct southbridge_amd_rs690_gfx_dts_config *cfg = dev->device_configuration; + deviceid = pci_read_config16(dev, PCI_DEVICE_ID); + vendorid = pci_read_config16(dev, PCI_VENDOR_ID); + printk(BIOS_INFO, "internal_gfx_pci_dev_init device=%x, vendor=%x, vga_rom_address=0x%x.\n", + deviceid, vendorid, cfg->vga_rom_address); + +#if 0 /* I think these should be done in Config.lb. Please check it. */ + dev->on_mainboard = 1; + dev->rom_address = cfg->vga_rom_address; /* 0xfff00000; */ +#endif + pci_dev_init(dev); + + /* clk ind */ + clkind_write(dev, 0x08, 0x01); + clkind_write(dev, 0x0C, 0x22); + clkind_write(dev, 0x0F, 0x0); + clkind_write(dev, 0x11, 0x0); + clkind_write(dev, 0x12, 0x0); + clkind_write(dev, 0x14, 0x0); + clkind_write(dev, 0x15, 0x0); + clkind_write(dev, 0x16, 0x0); + clkind_write(dev, 0x17, 0x0); + clkind_write(dev, 0x18, 0x0); + clkind_write(dev, 0x19, 0x0); + clkind_write(dev, 0x1A, 0x0); + clkind_write(dev, 0x1B, 0x0); + clkind_write(dev, 0x1C, 0x0); + clkind_write(dev, 0x1D, 0x0); + clkind_write(dev, 0x1E, 0x0); + clkind_write(dev, 0x26, 0x0); + clkind_write(dev, 0x27, 0x0); + clkind_write(dev, 0x28, 0x0); + clkind_write(dev, 0x5C, 0x0); +} + +static void rs690_gfx_set_resources(struct device *dev) +{ + printk(BIOS_INFO, "rs690_gfx_set_resources.\n"); + pci_dev_set_resources(dev); +} + +/* +* Set registers in RS690 and CPU to enable the internal GFX. +* Please refer to CIM source code and BKDG. +* Does this enable for pci scanning or enable for operation? +*/ +static void rs690_internal_gfx_enable(struct device * dev) +{ + u32 l_dword; + int i; + struct device * k8_f0 = 0, k8_f2 = 0; + struct device * nb_dev = dev_find_slot(0, 0); + + printk(BIOS_INFO, "rs690_internal_gfx_enable dev=0x%x, nb_dev=0x%x.\n", dev, + nb_dev); + + /* set APERTURE_SIZE, 128M. */ + l_dword = pci_read_config32(nb_dev, 0x8c); + printk(BIOS_INFO, "nb_dev, 0x8c=0x%x\n", l_dword); + l_dword &= 0xffffff8f; + pci_write_config32(nb_dev, 0x8c, l_dword); + + /* set TOM */ + rs690_set_tom(nb_dev); + + /* LPC DMA Deadlock workaround? */ + k8_f0 = dev_find_slot(0, PCI_DEVFN(0x18, 0)); + l_dword = pci_read_config32(k8_f0, 0x68); + l_dword &= ~(1 << 22); + l_dword |= (1 << 21); + pci_write_config32(k8_f0, 0x68, l_dword); + + /* Enable 64bit mode. */ + set_nbmc_enable_bits(nb_dev, 0x5f, 0, 1 << 9); + set_nbmc_enable_bits(nb_dev, 0xb0, 0, 1 << 8); + + /* 64bit Latency. */ + set_nbmc_enable_bits(nb_dev, 0x5f, 0x7c00, 0x800); + + /* UMA dual channel control register. */ + nbmc_write_index(nb_dev, 0x86, 0x3d); + + /* check the setting later!! */ + set_htiu_enable_bits(nb_dev, 0x07, 1 << 7, 0); + + /* UMA mode, powerdown memory PLL. */ + set_nbmc_enable_bits(nb_dev, 0x74, 0, 1 << 31); + + /* Copy CPU DDR Controller to NB MC. */ + /* Why K8_MC_REG80 is special? */ + k8_f2 = dev_find_slot(0, PCI_DEVFN(0x18, 2)); + for (i = 0; i <= (0x80 - 0x40) / 4; i++) { + l_dword = pci_read_config32(k8_f2, 0x40 + i * 4); + nbmc_write_index(nb_dev, 0x63 + i, l_dword); + } + + /* Set K8 MC for UMA, Family F. */ + l_dword = pci_read_config32(k8_f2, 0xa0); + l_dword |= 0x2c; + pci_write_config32(k8_f2, 0xa0, l_dword); + l_dword = pci_read_config32(k8_f2, 0x94); + l_dword &= 0xf0ffffff; + l_dword |= 0x07000000; + pci_write_config32(k8_f2, 0x94, l_dword); + + /* set FB size and location. */ + nbmc_write_index(nb_dev, 0x1b, 0x00); + l_dword = nbmc_read_index(nb_dev, 0x1c); + l_dword &= 0xffff0; + l_dword |= 0x400 << 20; + l_dword |= 0x4; + nbmc_write_index(nb_dev, 0x1c, l_dword); + l_dword = nbmc_read_index(nb_dev, 0x1d); + l_dword &= 0xfffff000; + l_dword |= 0x0400; + nbmc_write_index(nb_dev, 0x1d, l_dword); + nbmc_write_index(nb_dev, 0x100, 0x3fff3800); + + /* Program MC table. */ + set_nbmc_enable_bits(nb_dev, 0x00, 0, 1 << 31); + l_dword = nbmc_read_index(nb_dev, 0x91); + l_dword |= 0x5; + nbmc_write_index(nb_dev, 0x91, l_dword); + set_nbmc_enable_bits(nb_dev, 0xb1, 0, 1 << 6); + set_nbmc_enable_bits(nb_dev, 0xc3, 0, 1); + + /* TODO: the optimization of voltage and frequency */ +} + +static struct pci_operations lops_pci = { + .set_subsystem = pci_dev_set_subsystem, +}; + +/* step 12 ~ step 14 from rpr */ +static void single_port_configuration(struct device * nb_dev, struct device * dev) +{ + u8 result, width; + u32 reg32; + struct southbridge_amd_rs690_gfx_dts_config *cfg = nb_dev->device_configuration; + + printk(BIOS_INFO, "rs690_gfx_init single_port_configuration.\n"); + + /* step 12 training, releases hold training for GFX port 0 (device 2) */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 4, 0<<4); + PcieReleasePortTraining(nb_dev, dev, 2); + result = PcieTrainPort(nb_dev, dev, 2); + printk(BIOS_INFO, "rs690_gfx_init single_port_configuration step12.\n"); + + /* step 13 Power Down Control */ + /* step 13.1 Enables powering down transmitter and receiver pads along with PLL macros. */ + set_pcie_enable_bits(nb_dev, 0x40, 1 << 0, 1 << 0); + + /* step 13.a Link Training was NOT successful */ + if (!result) { + set_nbmisc_enable_bits(nb_dev, 0x8, 0, 0x3 << 4); /* prevent from training. */ + set_nbmisc_enable_bits(nb_dev, 0xc, 0, 0x3 << 2); /* hide the GFX bridge. */ + if (cfg->gfx_tmds) + nbpcie_ind_write_index(nb_dev, 0x65, 0xccf0f0); + else { + nbpcie_ind_write_index(nb_dev, 0x65, 0xffffffff); + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 3, 1 << 3); + } + } else { /* step 13.b Link Training was successful */ + + reg32 = nbpcie_p_read_index(dev, 0xa2); + width = (reg32 >> 4) & 0x7; + printk(BIOS_DEBUG, "GFX LC_LINK_WIDTH = 0x%x.\n", width); + switch (width) { + case 1: + case 2: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x7f7f : 0xccfefe); + break; + case 4: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x3f3f : 0xccfcfc); + break; + case 8: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x0f0f : 0xccf0f0); + break; + } + } + printk(BIOS_INFO, "rs690_gfx_init single_port_configuration step13.\n"); + + /* step 14 Reset Enumeration Timer, disables the shortening of the enumeration timer */ + set_pcie_enable_bits(dev, 0x70, 1 << 19, 0 << 19); + printk(BIOS_INFO, "rs690_gfx_init single_port_configuration step14.\n"); +} + +/* step 15 ~ step 18 from rpr */ +static void dual_port_configuration(struct device * nb_dev, struct device * dev) +{ + u8 result, width; + u32 reg32; + struct southbridge_amd_rs690_config *cfg = + (struct southbridge_amd_rs690_config *)nb_dev->chip_info; + + /* step 15: Training for Device 2 */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 4, 0 << 4); + /* Releases hold training for GFX port 0 (device 2) */ + PcieReleasePortTraining(nb_dev, dev, 2); + /* PCIE Link Training Sequence */ + result = PcieTrainPort(nb_dev, dev, 2); + + /* step 16: Power Down Control for Device 2 */ + /* step 16.a Link Training was NOT successful */ + if (!result) { + /* Powers down all lanes for port A */ + nbpcie_ind_write_index(nb_dev, 0x65, 0x0f0f); + } else { /* step 16.b Link Training was successful */ + + reg32 = nbpcie_p_read_index(dev, 0xa2); + width = (reg32 >> 4) & 0x7; + printk(BIOS_DEBUG, "GFX LC_LINK_WIDTH = 0x%x.\n", width); + switch (width) { + case 1: + case 2: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x0707 : 0x0e0e); + break; + case 4: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x0303 : 0x0c0c); + break; + } + } + + /* step 17: Training for Device 3 */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 5, 0 << 5); + /* Releases hold training for GFX port 0 (device 3) */ + PcieReleasePortTraining(nb_dev, dev, 3); + /* PCIE Link Training Sequence */ + result = PcieTrainPort(nb_dev, dev, 3); + + /*step 18: Power Down Control for Device 3 */ + /* step 18.a Link Training was NOT successful */ + if (!result) { + /* Powers down all lanes for port B and PLL1 */ + nbpcie_ind_write_index(nb_dev, 0x65, 0xccf0f0); + } else { /* step 18.b Link Training was successful */ + + reg32 = nbpcie_p_read_index(dev, 0xa2); + width = (reg32 >> 4) & 0x7; + printk(BIOS_DEBUG, "GFX LC_LINK_WIDTH = 0x%x.\n", width); + switch (width) { + case 1: + case 2: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x7070 : 0xe0e0); + break; + case 4: + nbpcie_ind_write_index(nb_dev, 0x65, + cfg->gfx_lane_reversal ? 0x3030 : 0xc0c0); + break; + } + } +} + + +/* For single port GFX configuration Only +* width: +* 000 = x16 +* 001 = x1 +* 010 = x2 +* 011 = x4 +* 100 = x8 +* 101 = x12 (not supported) +* 110 = x16 +*/ +static void dynamic_link_width_control(struct device * nb_dev, struct device * dev, u8 width) +{ + u32 reg32; + struct device * sb_dev; + struct southbridge_amd_rs690_config *cfg = + (struct southbridge_amd_rs690_config *)nb_dev->chip_info; + + /* step 5.9.1.1 */ + reg32 = nbpcie_p_read_index(dev, 0xa2); + + /* step 5.9.1.2 */ + set_pcie_enable_bits(nb_dev, 0x40, 1 << 0, 1 << 0); + /* step 5.9.1.3 */ + set_pcie_enable_bits(dev, 0xa2, 3 << 0, width << 0); + /* step 5.9.1.4 */ + set_pcie_enable_bits(dev, 0xa2, 1 << 8, 1 << 8); + /* step 5.9.2.4 */ + if (0 == cfg->gfx_reconfiguration) + set_pcie_enable_bits(dev, 0xa2, 1 << 11, 1 << 11); + + /* step 5.9.1.5 */ + do { + reg32 = nbpcie_p_read_index(dev, 0xa2); + } + while (reg32 & 0x100); + + /* step 5.9.1.6 */ + sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0)); + do { + reg32 = pci_ext_read_config32(nb_dev, sb_dev, + PCIE_VC0_RESOURCE_STATUS); + } while (reg32 & VC_NEGOTIATION_PENDING); + + /* step 5.9.1.7 */ + reg32 = nbpcie_p_read_index(dev, 0xa2); + if (((reg32 & 0x70) >> 4) != 0x6) { + /* the unused lanes should be powered off. */ + } + + /* step 5.9.1.8 */ + set_pcie_enable_bits(nb_dev, 0x40, 1 << 0, 0 << 0); +} + +/* +* GFX Core initialization, dev2, dev3 +*/ +void rs690_gfx_init(struct device * nb_dev, struct device * dev, u32 port) +{ + u16 reg16; + struct southbridge_amd_rs690_config *cfg = + (struct southbridge_amd_rs690_config *)nb_dev->chip_info; + + printk(BIOS_INFO, "rs690_gfx_init, nb_dev=0x%x, dev=0x%x, port=0x%x.\n", + nb_dev, dev, port); + + /* step 0, REFCLK_SEL, skip A11 revision */ + set_nbmisc_enable_bits(nb_dev, 0x6a, 1 << 9, + cfg->gfx_dev2_dev3 ? 1 << 9 : 0 << 9); + printk(BIOS_INFO, "rs690_gfx_init step0.\n"); + + /* step 1, lane reversal (only need if CMOS option is enabled) */ + if (cfg->gfx_lane_reversal) { + set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 2, 1 << 2); + if (cfg->gfx_dual_slot) + set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 3, 1 << 3); + } + printk(BIOS_INFO, "rs690_gfx_init step1.\n"); + + /* step 1.1, dual-slot gfx configuration (only need if CMOS option is enabled) */ + /* AMD calls the configuration CrossFire */ + if (cfg->gfx_dual_slot) + set_nbmisc_enable_bits(nb_dev, 0x0, 0xf << 8, 5 << 8); + printk(BIOS_INFO, "rs690_gfx_init step2.\n"); + + /* step 2, TMDS, (only need if CMOS option is enabled) */ + if (cfg->gfx_tmds) { + } + + /* step 3, GFX overclocking, (only need if CMOS option is enabled) */ + /* skip */ + + /* step 4, reset the GFX link */ + /* step 4.1 asserts both calibration reset and global reset */ + set_nbmisc_enable_bits(nb_dev, 0x8, 0x3 << 14, 0x3 << 14); + + /* step 4.2 de-asserts calibration reset */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 14, 0 << 14); + + /* step 4.3 wait for at least 200us */ + udelay(200); + + /* step 4.4 de-asserts global reset */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 15, 0 << 15); + + /* step 4.5 asserts both calibration reset and global reset */ + /* a weird step in RPR, don't do that */ + /* set_nbmisc_enable_bits(nb_dev, 0x8, 0x3 << 14, 0x3 << 14); */ + + /* step 4.6 bring external GFX device out of reset, wait for 1ms */ + mdelay(1); + printk(BIOS_INFO, "rs690_gfx_init step4.\n"); + + /* step 5 program PCIE memory mapped configuration space */ + /* done by enable_pci_bar3() before */ + + /* step 6 SBIOS compile flags */ + + /* step 7 compliance state, (only need if CMOS option is enabled) */ + /* the compliance stete is just for test. refer to 4.2.5.2 of PCIe specification */ + if (cfg->gfx_compliance) { + /* force compliance */ + set_nbmisc_enable_bits(nb_dev, 0x32, 1 << 6, 1 << 6); + /* release hold training for device 2. GFX initialization is done. */ + set_nbmisc_enable_bits(nb_dev, 0x8, 1 << 4, 0 << 4); + dynamic_link_width_control(nb_dev, dev, cfg->gfx_link_width); + printk(BIOS_INFO, "rs690_gfx_init step7.\n"); + return; + } + + /* step 8 common initialization */ + /* step 8.1 sets RCB timeout to be 25ms */ + set_pcie_enable_bits(dev, 0x70, 7 << 16, 3 << 16); + printk(BIOS_INFO, "rs690_gfx_init step8.1.\n"); + + /* step 8.2 disables slave ordering logic */ + set_pcie_enable_bits(nb_dev, 0x20, 1 << 8, 1 << 8); + printk(BIOS_INFO, "rs690_gfx_init step8.2.\n"); + + /* step 8.3 sets DMA payload size to 64 bytes */ + set_pcie_enable_bits(nb_dev, 0x10, 7 << 10, 4 << 10); + printk(BIOS_INFO, "rs690_gfx_init step8.3.\n"); + + /* step 8.4 if the LTSSM could not see all 8 TS1 during Polling Active, it can still + * time out and go back to Detect Idle.*/ + set_pcie_enable_bits(dev, 0x02, 1 << 14, 1 << 14); + printk(BIOS_INFO, "rs690_gfx_init step8.4.\n"); + + /* step 8.5 shortens the enumeration timer */ + set_pcie_enable_bits(dev, 0x70, 1 << 19, 1 << 19); + printk(BIOS_INFO, "rs690_gfx_init step8.5.\n"); + + /* step 8.6 blocks DMA traffic during C3 state */ + set_pcie_enable_bits(dev, 0x10, 1 << 0, 0 << 0); + printk(BIOS_INFO, "rs690_gfx_init step8.6.\n"); + + /* step 8.7 Do not gate the electrical idle form the PHY + * step 8.8 Enables the escape from L1L23 */ + set_pcie_enable_bits(dev, 0xa0, 3 << 30, 3 << 30); + printk(BIOS_INFO, "rs690_gfx_init step8.8.\n"); + + /* step 8.9 Setting this register to 0x1 will workaround a PCI Compliance failure reported by Vista DTM. + * SLOT_IMPLEMENTED@PCIE_CAP */ + reg16 = pci_read_config16(dev, 0x5a); + reg16 |= 0x100; + pci_write_config16(dev, 0x5a, reg16); + printk(BIOS_INFO, "rs690_gfx_init step8.9.\n"); + + /* step 8.10 Setting this register to 0x1 will hide the Advanced Error Rporting Capabilities in the PCIE Brider. + * This will workaround several failures reported by the PCI Compliance test under Vista DTM. */ + set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 31, 0 << 31); + printk(BIOS_INFO, "rs690_gfx_init step8.10.\n"); + + /* step 8.11 Sets REGS_DLP_IGNORE_IN_L1_EN to ignore DLLPs during L1 so that txclk can be turned off. */ + set_pcie_enable_bits(nb_dev, 0x02, 1 << 0, 1 << 0); + printk(BIOS_INFO, "rs690_gfx_init step8.11.\n"); + + /* step 8.12 Sets REGS_LC_DONT_GO_TO_L0S_IF_L1_ARMED to prevent lc to go to from L0 to Rcv_L0s if L1 is armed. */ + set_pcie_enable_bits(nb_dev, 0x02, 1 << 6, 1 << 6); + printk(BIOS_INFO, "rs690_gfx_init step8.12.\n"); + + /* step 8.13 Sets CMGOOD_OVERRIDE. */ + set_nbmisc_enable_bits(nb_dev, 0x6a, 1 << 17, 1 << 17); + printk(BIOS_INFO, "rs690_gfx_init step8.13.\n"); + + /* step 9 Enable TLP Flushing, for non-AMD GFX devices and Hot-Plug devices only. */ + /* skip */ + + /* step 10 Optional Features, only needed if CMOS option is enabled. */ + /* step 10.a: L0s */ + /* enabling L0s in the RS690 GFX port(s) */ + set_pcie_enable_bits(nb_dev, 0xF9, 3 << 13, 2 << 13); + set_pcie_enable_bits(dev, 0xA0, 0xf << 8, 8 << 8); + reg16 = pci_read_config16(dev, 0x68); + reg16 |= 1 << 0; + /* L0s is intended as a power saving state */ + /* pci_write_config16(dev, 0x68, reg16); */ + + /* enabling L0s in the External GFX Device(s) */ + + /* step 10.b: active state power management (ASPM L1) */ + /* TO DO */ + + /* step 10.c: turning off PLL During L1/L23 */ + set_pcie_enable_bits(nb_dev, 0x40, 1 << 3, 1 << 3); + set_pcie_enable_bits(nb_dev, 0x40, 1 << 9, 1 << 9); + + /* step 10.d: TXCLK clock gating */ + set_nbmisc_enable_bits(nb_dev, 0x7, 3, 3); + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 22, 1 << 22); + set_pcie_enable_bits(nb_dev, 0x11, 0xf << 4, 0xc << 4); + + /* step 10.e: LCLK clock gating, done in rs690_config_misc_clk() */ + + /* step 11 Poll GPIO to determine whether it is single-port or dual-port configuration. + * While details will be added later in the document, for now assue the single-port configuration. */ + /* skip */ + + /* Single-port/Dual-port configureation. */ + switch (cfg->gfx_dual_slot) { + case 0: + single_port_configuration(nb_dev, dev); + break; + case 1: + dual_port_configuration(nb_dev, dev); + break; + default: + printk(BIOS_INFO, "Incorrect configuration of external gfx slot.\n"); + break; + } +} + +struct device_operations rs690_gfx = { + .id = {.type = DEVICE_ID_PCI, + {.pci = {.vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_RS690MT_INT_GFX}}}, + .constructor = default_device_constructor, + .phase2_setup_scanbus = rs690_internal_gfx_enable, + .phase3_scan = 0, + .phase4_read_resources = rs690_gfx_read_resources, + .phase4_set_resources = rs690_gfx_set_resources, + .phase5_enable_resources = pci_dev_enable_resources, + .phase6_init = internal_gfx_pci_dev_init, + .ops_pci = &lops_pci, +};
Added: coreboot-v3/southbridge/amd/rs690/gfx.dts =================================================================== --- coreboot-v3/southbridge/amd/rs690/gfx.dts (rev 0) +++ coreboot-v3/southbridge/amd/rs690/gfx.dts 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,44 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Ronald G. Minnich rminnich@gmail.com + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +/* +#Define gpp_configuration, A=0, B=1, C=2, D=3, E=4(default) +#Define vga_rom_address = 0xfff0000 +#Define port_enable, (bit map): GFX(2,3), GPP(4,5,6,7) +#Define gfx_dev2_dev3, 0: a link will never be established on Dev2 or Dev3, +# 1: the system allows a PCIE link to be established on Dev2 or Dev3. +#Define gfx_dual_slot, 0: single slot, 1: dual slot +#Define gfx_lane_reversal, 0: disable lane reversal, 1: enable +#Define gfx_tmds, 0: didn't support TMDS, 1: support +#Define gfx_compliance, 0: didn't support compliance, 1: support +#Define gfx_reconfiguration, 0: short reconfiguration, 1(default): long reconfiguration +#Define gfx_link_width, 0: x16, 1: x1, 2: x2, 3: x4, 4: x8, 5: x12 (not supported), 6: x16 +*/ +{ + device_operations = "rs690_gfx"; + vga_rom_address = "0xfff00000"; /* The location that the VGA rom has been appened. */ + gfx_dev2_dev3 = "1"; /* for GFX Core initialization REFCLK_SEL */ + gfx_dual_slot = "0"; /* Is it dual graphics slots */ + gfx_lane_reversal = "0"; /* Single/Dual slot lan reversal */ + gfx_tmds = "0"; /* whether support TMDS? */ + gfx_compliance = "0"; /* whether support compliance? */ + gfx_reconfiguration = "1"; /* Dynamic Lind Width Control */ + gfx_link_width = "0"; /* Desired width of lane 2 */ +};
Added: coreboot-v3/southbridge/amd/rs690/ht.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/ht.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/ht.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,92 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci_ids.h> +#include <statictree.h> +#include <config.h> +#include "rs690.h" + +/* for UMA internal graphics */ +void avoid_lpc_dma_deadlock(struct device * nb_dev, struct device * sb_dev) +{ + struct device * k8_f0; + u8 reg; + + k8_f0 = dev_find_slot(0, PCI_DEVFN(0x18, 0)); + set_nbcfg_enable_bits(k8_f0, 0x68, 3 << 21, 1 << 21); + + reg = nbpcie_p_read_index(sb_dev, 0x10); + reg |= 0x100; /* bit9=1 */ + nbpcie_p_write_index(sb_dev, 0x10, reg); + + reg = nbpcie_p_read_index(nb_dev, 0x10); + reg |= 0x100; /* bit9=1 */ + nbpcie_p_write_index(nb_dev, 0x10, reg); + + /* Enable NP protocol over PCIE for memory-mapped writes targeting LPC + * Set this bit to avoid a deadlock condition. */ + reg = htiu_read_index(nb_dev, 0x6); + reg |= 0x1000000; /* bit26 */ + htiu_write_index(nb_dev, 0x6, reg); +} + +static void pcie_init(struct device *dev) +{ + /* Enable pci error detecting */ + u32 dword; + + printk(BIOS_INFO, "pcie_init in rs690_ht.c\n"); + + /* System error enable */ + dword = pci_read_config32(dev, 0x04); + dword |= (1 << 8); /* System error enable */ + dword |= (1 << 30); /* Clear possible errors */ + pci_write_config32(dev, 0x04, dword); + + /* + * 1 is APIC enable + * 18 is enable nb to accept A4 interrupt request from SB. + */ + dword = pci_read_config32(dev, 0x4C); + dword |= 1 << 1 | 1 << 18; /* Clear possible errors */ + pci_write_config32(dev, 0x4C, dword); +} + +static struct pci_operations lops_pci = { + .set_subsystem = pci_dev_set_subsystem, +}; + +struct device_operations rs690_gfx = { + .id = {.type = DEVICE_ID_PCI, + {.pci = {.vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_RS690_HT}}}, + .constructor = default_device_constructor, + .phase3_scan = 0, + .phase4_read_resources = pci_dev_read_resources, + .phase4_set_resources = pci_dev_set_resources, + .phase5_enable_resources = pci_dev_enable_resources, + .phase6_init = pcie_init, + .ops_pci = &lops_pci, +};
Added: coreboot-v3/southbridge/amd/rs690/ht.dts =================================================================== --- coreboot-v3/southbridge/amd/rs690/ht.dts (rev 0) +++ coreboot-v3/southbridge/amd/rs690/ht.dts 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,23 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Ronald G. Minnich rminnich@gmail.com + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +{ + device_operations = "rs690_ht"; +};
Added: coreboot-v3/southbridge/amd/rs690/pcie.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/pcie.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/pcie.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,422 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci_ids.h> +#include <statictree.h> +#include <config.h> +#include "rs690.h" + +/*------------------------------------------------ +* Global variable +------------------------------------------------*/ +PCIE_CFG AtiPcieCfg = { + PCIE_ENABLE_STATIC_DEV_REMAP, /* Config */ + 0, /* ResetReleaseDelay */ + 0, /* Gfx0Width */ + 0, /* Gfx1Width */ + 0, /* GfxPayload */ + 0, /* GppPayload */ + 0, /* PortDetect, filled by GppSbInit */ + 0, /* PortHp */ + 0, /* DbgConfig */ + 0, /* DbgConfig2 */ + 0, /* GfxLx */ + 0, /* GppLx */ + 0, /* NBSBLx */ + 0, /* PortSlotInit */ + 0, /* Gfx0Pwr */ + 0, /* Gfx1Pwr */ + 0 /* GppPwr */ +}; + +static void PciePowerOffGppPorts(device_t nb_dev, device_t dev, u32 port); +static void ValidatePortEn(device_t nb_dev); + +static void ValidatePortEn(device_t nb_dev) +{ +} + + +/***************************************************************** +* Compliant with CIM_33's PCIEPowerOffGppPorts +* Power off unused GPP lines +*****************************************************************/ +static void PciePowerOffGppPorts(device_t nb_dev, device_t dev, u32 port) +{ + u32 reg; + u16 state_save; + struct southbridge_amd_rs690_pcie_dts_config *cfg = nb_dev->device_configuration; + u8 state = cfg->port_enable; + + if (!(AtiPcieCfg.Config & PCIE_DISABLE_HIDE_UNUSED_PORTS)) + state &= AtiPcieCfg.PortDetect; + state = ~state; + state &= (1 << 4) + (1 << 5) + (1 << 6) + (1 << 7); + state_save = state << 17; + state &= !(AtiPcieCfg.PortHp); + reg = nbmisc_read_index(nb_dev, 0x0c); + reg |= state; + nbmisc_write_index(nb_dev, 0x0c, reg); + + reg = nbmisc_read_index(nb_dev, 0x08); + reg |= state_save; + nbmisc_write_index(nb_dev, 0x08, reg); + + if ((AtiPcieCfg.Config & PCIE_OFF_UNUSED_GPP_LANES) + && !(AtiPcieCfg. + Config & (PCIE_DISABLE_HIDE_UNUSED_PORTS + + PCIE_GFX_COMPLIANCE))) { + } + /* step 3 Power Down Control for Southbridge */ + reg = nbpcie_p_read_index(dev, 0xa2); + + switch ((reg >> 4) & 0x7) { /* get bit 4-6, LC_LINK_WIDTH_RD */ + case 1: + nbpcie_ind_write_index(nb_dev, 0x65, 0x0e0e); + break; + case 2: + nbpcie_ind_write_index(nb_dev, 0x65, 0x0c0c); + break; + default: + break; + } +} + +static void pcie_init(struct device *dev) +{ + /* Enable pci error detecting */ + u32 dword; + + printk_debug("pcie_init in rs690_pcie.c\n"); + + /* System error enable */ + dword = pci_read_config32(dev, 0x04); + dword |= (1 << 8); /* System error enable */ + dword |= (1 << 30); /* Clear possible errors */ + pci_write_config32(dev, 0x04, dword); +} + + +/********************************************************************** +**********************************************************************/ +static void switching_gpp_configurations(device_t nb_dev, device_t sb_dev) +{ + u32 reg; + struct southbridge_amd_rs690_pcie_dts_config *cfg = nb_dev->device_configuration; + + /* enables GPP reconfiguration */ + reg = nbmisc_read_index(nb_dev, PCIE_NBCFG_REG7); + reg |= + (RECONFIG_GPPSB_EN + RECONFIG_GPPSB_LINK_CONFIG + + RECONFIG_GPPSB_ATOMIC_RESET); + nbmisc_write_index(nb_dev, PCIE_NBCFG_REG7, reg); + + /* sets desired GPPSB configurations, bit4-7 */ + reg = nbmisc_read_index(nb_dev, 0x67); + reg &= 0xff0f; /* clean */ + reg |= cfg->gpp_configuration; + nbmisc_write_index(nb_dev, 0x67, reg); + + /* read bit14 and write back its inverst value */ + reg = nbmisc_read_index(nb_dev, PCIE_NBCFG_REG7); + reg ^= RECONFIG_GPPSB_GPPSB; + nbmisc_write_index(nb_dev, PCIE_NBCFG_REG7, reg); + + /* delay 1ms */ + mdelay(1); + + /* waits until SB has trained to L0, poll for bit0-5 = 0x10 */ + do { + reg = nbpcie_p_read_index(sb_dev, PCIE_LC_STATE0); + reg &= 0x1f; /* remain LSB 5 bits */ + } while (LC_STATE_RECONFIG_GPPSB != reg); + + /* ensures that virtual channel negotiation is completed. poll for bit1 = 0 */ + do { + reg = + pci_ext_read_config32(nb_dev, sb_dev, + PCIE_VC0_RESOURCE_STATUS); + } while (reg & VC_NEGOTIATION_PENDING); +} + +/***************************************************************** +* The rs690 uses NBCONFIG:0x1c (BAR3) to map the PCIE Extended Configuration +* Space to a 256MB range within the first 4GB of addressable memory. +*****************************************************************/ +void enable_pcie_bar3(device_t nb_dev) +{ + printk_debug("enable_pcie_bar3()\n"); + set_nbcfg_enable_bits(nb_dev, 0x7C, 1 << 30, 1 << 30); /* Enables writes to the BAR3 register. */ + set_nbcfg_enable_bits(nb_dev, 0x84, 7 << 16, 0 << 16); + + pci_write_config32(nb_dev, 0x1C, EXT_CONF_BASE_ADDRESS); /* PCIEMiscInit */ + pci_write_config32(nb_dev, 0x20, 0x00000000); + set_htiu_enable_bits(nb_dev, 0x32, 1 << 28, 1 << 28); /* PCIEMiscInit */ + ProgK8TempMmioBase(1, EXT_CONF_BASE_ADDRESS, TEMP_MMIO_BASE_ADDRESS); +} + +/***************************************************************** +* We should disable bar3 when we want to exit rs690_enable, because bar3 will be +* remapped in set_resource later. +*****************************************************************/ +void disable_pcie_bar3(device_t nb_dev) +{ + printk_debug("disable_pcie_bar3()\n"); + set_nbcfg_enable_bits(nb_dev, 0x7C, 1 << 30, 0 << 30); /* Disable writes to the BAR3. */ + pci_write_config32(nb_dev, 0x1C, 0); /* clear BAR3 address */ + ProgK8TempMmioBase(0, EXT_CONF_BASE_ADDRESS, TEMP_MMIO_BASE_ADDRESS); +} + +/***************************************** +* Compliant with CIM_33's PCIEGPPInit +* nb_dev: +* root bridge struct +* dev: +* p2p bridge struct +* port: +* p2p bridge number, 4-8 +*****************************************/ +void rs690_gpp_sb_init(device_t nb_dev, device_t dev, u32 port) +{ + u8 reg8; + u16 reg16; + device_t sb_dev; + struct southbridge_amd_rs690_pcie_dts_config *cfg = nb_dev->device_configuration; + printk_debug("gpp_sb_init nb_dev=0x%x, dev=0x%x, port=0x%x\n", nb_dev, dev, port); + + /* init GPP core */ + set_pcie_enable_bits(nb_dev, 0x20 | PCIE_CORE_INDEX_GPPSB, 1 << 8, + 1 << 8); + /* PCIE initialization 5.10.2: rpr 2.12*/ + set_pcie_enable_bits(nb_dev, 0x02 | PCIE_CORE_INDEX_GPPSB, 1 << 0, 1 << 0); /* no description in datasheet. */ + + /* init GPPSB port */ + /* Sets RCB timeout to be 100ms by setting bits[18:16] to 3 b101 and shortens the enumeration timer by setting bit[19] to 0*/ + set_pcie_enable_bits(dev, 0x70, 7 << 16, 0xd << 16); + /* PCIE initialization 5.10.2: rpr 2.4 */ + set_pcie_enable_bits(dev, 0x02, ~0xffffffff, 1 << 14); + /* Do not gate the electrical idle from the PHY and enables the escape from L1L23 */ + set_pcie_enable_bits(dev, 0xA0, ~0xffffffbf, (3 << 30) | (3 << 12) | (3 << 4)); + /* PCIE initialization 5.10.2: rpr 2.13 */ + set_pcie_enable_bits(dev, 0x02, ~0xffffffff, 1 << 6); + + /* SLOT_IMPLEMENTED in pcieConfig space */ + reg8 = pci_read_config8(dev, 0x5b); + reg8 |= 1 << 0; + pci_write_config8(dev, 0x5b, reg8); + + reg16 = pci_read_config16(dev, 0x5a); + reg16 |= 0x100; + pci_write_config16(dev, 0x5a, reg16); + nbmisc_write_index(nb_dev, 0x34, 0); + + /* check compliance rpr step 2.1*/ + if (AtiPcieCfg.Config & PCIE_GPP_COMPLIANCE) { + u32 tmp; + tmp = nbmisc_read_index(nb_dev, 0x67); + tmp |= 1 << 3; + nbmisc_write_index(nb_dev, 0x67, tmp); + } + + /* step 5: dynamic slave CPL buffer allocation */ + set_pcie_enable_bits(dev, 0x20, 1 << 11, 1 << 11); + + /* step 5a: Training for GPP devices */ + /* init GPP */ + switch (port) { + case 4: /* GPP */ + case 5: + case 6: + case 7: + /* Blocks DMA traffic during C3 state */ + set_pcie_enable_bits(dev, 0x10, 1 << 0, 0 << 0); + /* Enabels TLP flushing */ + set_pcie_enable_bits(dev, 0x20, 1 << 19, 0 << 19); + + /* check port enable */ + if (cfg->port_enable & (1 << port)) { + PcieReleasePortTraining(nb_dev, dev, port); + if (!(AtiPcieCfg.Config & PCIE_GPP_COMPLIANCE)) { + u8 res = PcieTrainPort(nb_dev, dev, port); + printk_debug("PcieTrainPort port=0x%x result=%d\n", port, res); + if (res) { + AtiPcieCfg.PortDetect |= 1 << port; + } + } + } + break; + case 8: /* SB */ + break; + } + PciePowerOffGppPorts(nb_dev, dev, port); + + /* step 5b: GFX devices in a GPP slot */ + + /* step 6a: VCI */ + sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0)); + if (port == 8) { + /* Clear bits 7:1 */ + pci_ext_write_config32(nb_dev, sb_dev, 0x114, 0x3f << 1, 0 << 1); + /* Maps Traffic Class 1-7 to VC1 */ + pci_ext_write_config32(nb_dev, sb_dev, 0x120, 0x7f << 1, 0x7f << 1); + /* Assigns VC ID to 1 */ + pci_ext_write_config32(nb_dev, sb_dev, 0x120, 7 << 24, 1 << 24); + /* Enables VC1 */ + pci_ext_write_config32(nb_dev, sb_dev, 0x120, 1 << 31, 1 << 31); +#if 0 + do { + reg16 = pci_ext_read_config32(nb_dev, sb_dev, 0x124); + reg16 &= 0x2; + } while (reg16); /*bit[1] = 0 means VC1 flow control initialization is successful */ +#endif + } + + /* step 6b: L0s for the southbridge link */ + /* To enalbe L0s in the southbridage*/ + + /* step 6c: L0s for the GPP link(s) */ + /* To eable L0s in the RS690 for the GPP port(s) */ + set_pcie_enable_bits(nb_dev, 0xf9, 3 << 13, 2 << 13); + set_pcie_enable_bits(dev, 0xa0, 0xf << 8, 0x9 << 8); + reg16 = pci_read_config16(dev, 0x68); + reg16 |= 1 << 0; + pci_write_config16(dev, 0x68, reg16); + + /* step 6d: ASPM L1 for the southbridge link */ + /* To enalbe L1s in the southbridage*/ + + /* step 6e: ASPM L1 for GPP link(s) */; + set_pcie_enable_bits(nb_dev, 0xf9, 3 << 13, 2 << 13); + set_pcie_enable_bits(dev, 0xa0, 3 << 12, 3 << 12); + set_pcie_enable_bits(dev, 0xa0, 0xf << 4, 3 << 4); + reg16 = pci_read_config16(dev, 0x68); + reg16 &= ~0xff; + reg16 |= 1 << 1; + pci_write_config16(dev, 0x68, reg16); + + /* step 6f: Turning off PLL during L1/L23 */ + set_pcie_enable_bits(nb_dev, 0x40, 1 << 3, 1 << 3); + set_pcie_enable_bits(nb_dev, 0x40, 1 << 9, 1 << 9); + + /* step 6g: TXCLK clock gating */ + set_nbmisc_enable_bits(nb_dev, 0x7, 3 << 4, 3 << 4); + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 22, 1 << 22); + set_pcie_enable_bits(nb_dev, 0x11, 0xf << 4, 0xc << 4); + + /* step 6h: LCLK clock gating, done in rs690_config_misc_clk() */ +} + +/***************************************** +* Compliant with CIM_33's PCIEConfigureGPPCore +*****************************************/ +void config_gpp_core(device_t nb_dev, device_t sb_dev) +{ + u32 reg; + struct southbridge_amd_rs690_pcie_dts_config *cfg = nb_dev->chip_info; + + reg = nbmisc_read_index(nb_dev, 0x20); + if (AtiPcieCfg.Config & PCIE_ENABLE_STATIC_DEV_REMAP) + reg &= 0xfffffffd; /* set bit1 = 0 */ + else + reg |= 0x2; /* set bit1 = 1 */ + nbmisc_write_index(nb_dev, 0x20, reg); + + reg = nbmisc_read_index(nb_dev, 0x67); /* get STRAP_BIF_LINK_CONFIG_GPPSB at bit 4-7 */ + if (cfg->gpp_configuration != ((reg >> 4) & 0xf)) + switching_gpp_configurations(nb_dev, sb_dev); + ValidatePortEn(nb_dev); +} + +/***************************************** +* Compliant with CIM_33's PCIEMiscClkProg +*****************************************/ +void pcie_config_misc_clk(device_t nb_dev) +{ + u32 reg; + 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); + + if (AtiPcieCfg.Config & PCIE_GFX_CLK_GATING) { + /* TXCLK Clock Gating */ + set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 0, 3 << 0); + set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22); + set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_GFX, (3 << 6) | (~0xf), 3 << 6); + + /* LCLK Clock Gating */ + reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x94); + reg &= ~(1 << 16); + pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg); + } + + if (AtiPcieCfg.Config & PCIE_GPP_CLK_GATING) { + /* TXCLK Clock Gating */ + set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 4, 3 << 4); + set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22); + set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_GPPSB, (3 << 6) | (~0xf), 3 << 6); + + /* LCLK Clock Gating */ + reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x94); + reg &= ~(1 << 24); + pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg); + } + + reg = pci_read_config32(nb_dev, 0x4c); + reg &= ~(1 << 0); + pci_write_config32(nb_dev, 0x4c, reg); +} + +static struct pci_operations lops_pci = { + .set_subsystem = 0, +}; + +struct device_operations rs690_pcie = { + .id = {.type = DEVICE_ID_PCI, + {.pci = {.vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_RS690_PCIE}}}, + .constructor = default_device_constructor, + .phase3_scan = pci_scan_bridge, + .phase4_read_resources = pci_bus_read_resources, + .phase4_set_resources = pci_dev_set_resources, + .phase5_enable_resources = pci_bus_enable_resources, + .phase6_init = pcie_init, + .ops_pci = &lops_pci, +}; + +/* not yet until we figure out how to handle gpp_configuration and port_enable -- are they per port or per chip? Should they + * be per port or per chip? +static struct pci_driver pcie_driver_dev7 __pci_driver = { + .ops = &pcie_ops, + .vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_RS690_PCIE_DEV7, +}; +static struct pci_driver pcie_driver_dev8 __pci_driver = { + .ops = &pcie_ops, + .vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_RS690_PCIE_DEV8, +}; +*/ \ No newline at end of file
Added: coreboot-v3/southbridge/amd/rs690/pcie.dts =================================================================== --- coreboot-v3/southbridge/amd/rs690/pcie.dts (rev 0) +++ coreboot-v3/southbridge/amd/rs690/pcie.dts 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Ronald G. Minnich rminnich@gmail.com + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ +/* +#Define gpp_configuration, A=0, B=1, C=2, D=3, E=4(default) +#Define vga_rom_address = 0xfff0000 +#Define port_enable, (bit map): GFX(2,3), GPP(4,5,6,7) + */ +{ + device_operations = "rs690_pcie"; + gpp_configuration = "0xE"; /* A=0, B=1, C=2, D=3, E=4(default)*/ + port_enable = "0xff"; /*(bit map): GFX(2,3), GPP(4,5,6,7)*/ +};
Added: coreboot-v3/southbridge/amd/rs690/rs690.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/rs690.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/rs690.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,239 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci_ids.h> +#include <statictree.h> +#include <config.h> +#include "rs690.h" + +static struct device * find_nb_dev(struct device * dev, u32 devfn) +{ + struct device * nb_dev; + + nb_dev = dev_find_slot(dev->bus->secondary, devfn); + + if (!nb_dev) + return nb_dev; + + if ((nb_dev->vendor != PCI_VENDOR_ID_ATI) + || (nb_dev->device != PCI_DEVICE_ID_ATI_RS690_HT)) { + u32 id; + id = pci_read_config32(nb_dev, PCI_VENDOR_ID); + if (id != (PCI_VENDOR_ID_ATI | (PCI_DEVICE_ID_ATI_RS690_HT << 16))) { + nb_dev = 0; + } + } + return nb_dev; +} + +/***************************************** +* Compliant with CIM_33's ATINB_MiscClockCtrl +*****************************************/ +void static rs690_config_misc_clk(struct device * 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); +#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); +} + +/*********************************************** +* 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 rs690. +***********************************************/ +void rs690_enable(struct device * dev) +{ + struct device * nb_dev = 0, sb_dev = 0; + int index = -1; + u32 i; + u32 devfn; + u32 deviceid, vendorid; + + vendorid = pci_read_config32(dev, PCI_VENDOR_ID); + deviceid = (vendorid >> 16) & 0xffff; + vendorid &= 0xffff; + printk(BIOS_INFO, "rs690_enable VID=0x%x, DID=0x%x\n", vendorid, deviceid); + + /********************************************************** + * Work for bus0, internal GFX located on bus1 and will return after find_nb_dev. + **********************************************************/ + i = (dev->path.u.pci.devfn) & ~7; + for (devfn = 0; devfn <= i; devfn += (1 << 3)) { + nb_dev = find_nb_dev(dev, devfn); + if (nb_dev) + break; + } + if (!nb_dev) { + printk(BIOS_INFO, "CAN NOT FIND RS690 DEVICE!\n"); + return; /* nb_dev is not dev */ + } + + /* sb_dev (dev 8) is a bridge that links to southbridge. */ + sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0)); + if (!sb_dev) { + printk(BIOS_INFO, "rs690_enable CAN NOT FIND SB bridge, HALT!\n"); + for (;;) ; + } + + printk(BIOS_INFO, "rs690_enable bus0, dev=0x%x\n", (dev->path.u.pci.devfn - devfn) >> 3); + switch (dev->path.u.pci.devfn - devfn) { + 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); + rs690_gpp_sb_init(nb_dev, sb_dev, 8); + /* 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 */ + rs690_config_misc_clk(nb_dev); + break; + + case 1 << 3: /* bus0, dev1 */ + printk(BIOS_INFO, "Bus-0, Dev-1, Fun-0.\n"); + break; + case 2 << 3: /* bus0, dev2,3, two GFX */ + case 3 << 3: + printk(BIOS_INFO, "Bus-0, Dev-2,3, Fun-0. enable=%d\n", dev->enabled); + index = (dev->path.u.pci.devfn - devfn) >> 3; + set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << index, + (dev->enabled ? 0 : 1) << index); + if (dev->enabled) + rs690_gfx_init(nb_dev, dev, index); + break; + case 4 << 3: /* bus0, dev4-7, four GPP */ + case 5 << 3: + case 6 << 3: + case 7 << 3: + printk(BIOS_INFO, "Bus-0, Dev-4,5,6,7, Fun-0. enable=%d\n", + dev->enabled); + index = (dev->path.u.pci.devfn - devfn) >> 3; + set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << index, + (dev->enabled ? 0 : 1) << index); + if (dev->enabled) + rs690_gpp_sb_init(nb_dev, dev, index); + break; + case 8 << 3: /* 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) + rs690_gpp_sb_init(nb_dev, dev, index); + disable_pcie_bar3(nb_dev); + break; + default: + printk(BIOS_DEBUG, "unknown dev: %s\n", dev_path(dev)); + } +} + +struct chip_operations southbridge_amd_rs690_ops = { + CHIP_NAME("ATI RS690") + .enable_dev = rs690_enable, +}; +struct device_operations rs690_sb = { + .id = {.type = DEVICE_ID_PCI, + {.pci = {.vendor = PCI_VENDOR_ID_NVIDIA, + .device = PCI_DEVICE_ID_NVIDIA_MCP55_IDE}}}, + .constructor = default_device_constructor, + .phase3_scan = 0, + .phase4_read_resources = pci_dev_read_resources, + .phase4_set_resources = pci_dev_set_resources, + .phase5_enable_resources = pci_dev_enable_resources, + .phase6_init = ide_init, + .ops_pci = &pci_dev_ops_pci, +};
Added: coreboot-v3/southbridge/amd/rs690/rs690.h =================================================================== --- coreboot-v3/southbridge/amd/rs690/rs690.h (rev 0) +++ coreboot-v3/southbridge/amd/rs690/rs690.h 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,151 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 + */ + +#ifndef __RS690_H__ +#define __RS690_H__ + +#include <stdint.h> + +#define PCI_DEVICE_ID_ATI_RS690_HT 0x7910 +#define PCI_DEVICE_ID_ATI_RS690_PCIE 0x7912 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV2 0x7913 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV3 0x791B +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV4 0x7914 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV5 0x7915 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV6 0x7916 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV7 0x7917 +#define PCI_DEVICE_ID_ATI_RS690_PCIE_DEV8 0x7918 +#define PCI_DEVICE_ID_ATI_RS690_INT_GFX 0x791e +#define PCI_DEVICE_ID_ATI_RS690MT_INT_GFX 0x791f + +#define NBMISC_INDEX 0x60 +#define NBHTIU_INDEX 0xA8 +#define NBMC_INDEX 0xE8 +#define NBPCIE_INDEX 0xE0 +#define EXT_CONF_BASE_ADDRESS 0xE0000000 +#define TEMP_MMIO_BASE_ADDRESS 0xC0000000 + +typedef struct __PCIE_CFG__ { + u16 Config; + u8 ResetReleaseDelay; + u8 Gfx0Width; + u8 Gfx1Width; + u8 GfxPayload; + u8 GppPayload; + u8 PortDetect; + u8 PortHp; /* hot plug */ + u16 DbgConfig; + u32 DbgConfig2; + u8 GfxLx; + u8 GppLx; + u8 NBSBLx; + u8 PortSlotInit; + u8 Gfx0Pwr; + u8 Gfx1Pwr; + u8 GppPwr; +} PCIE_CFG; + +/* PCIE config flags */ +#define PCIE_DUALSLOT_CONFIG (1 << 0) +#define PCIE_OVERCLOCK_ENABLE (1 << 1) +#define PCIE_GPP_CLK_GATING (1 << 2) +#define PCIE_ENABLE_STATIC_DEV_REMAP (1 << 3) +#define PCIE_OFF_UNUSED_GFX_LANES (1 << 4) +#define PCIE_OFF_UNUSED_GPP_LANES (1 << 5) +#define PCIE_DISABLE_HIDE_UNUSED_PORTS (1 << 7) +#define PCIE_GFX_CLK_GATING (1 << 11) +#define PCIE_GFX_COMPLIANCE (1 << 14) +#define PCIE_GPP_COMPLIANCE (1 << 15) + +typedef enum _NB_REVISION_ { + REV_RS690_A11 = 5, + REV_RS690_A12 = 6, + REV_RS690_A21 = 7, +} NB_REVISION; + +/* -------------------- ---------------------- +* NBMISCIND + ------------------- -----------------------*/ +#define PCIE_LINK_CFG 0x8 +#define PCIE_NBCFG_REG7 0x37 +#define STRAPS_OUTPUT_MUX_7 0x67 +#define STRAPS_OUTPUT_MUX_A 0x6a + +/* -------------------- ---------------------- +* PCIEIND + ------------------- -----------------------*/ +#define PCIE_CI_CNTL 0x20 +#define PCIE_LC_LINK_WIDTH 0xa2 +#define PCIE_LC_STATE0 0xa5 +#define PCIE_VC0_RESOURCE_STATUS 0x11a /* 16bit read only */ + +#define PCIE_CORE_INDEX_GFX (0 << 16) /* see 5.2.2 */ +#define PCIE_CORE_INDEX_GPPSB (1 << 16) + +/* contents of PCIE_NBCFG_REG7 */ +#define RECONFIG_GPPSB_EN (1 << 12) +#define RECONFIG_GPPSB_GPPSB (1 << 14) +#define RECONFIG_GPPSB_LINK_CONFIG (1 << 15) +#define RECONFIG_GPPSB_ATOMIC_RESET (1 << 17) + +/* contents of PCIE_VC0_RESOURCE_STATUS */ +#define VC_NEGOTIATION_PENDING (1 << 1) + +#define LC_STATE_RECONFIG_GPPSB 0x10 + +/* ------------------------------------------------ +* Global variable +* ------------------------------------------------- */ +extern PCIE_CFG AtiPcieCfg; + +/* ----------------- export functions ----------------- */ +u32 nbmisc_read_index(device_t nb_dev, u32 index); +void nbmisc_write_index(device_t nb_dev, u32 index, u32 data); +u32 nbpcie_p_read_index(device_t dev, u32 index); +void nbpcie_p_write_index(device_t dev, u32 index, u32 data); +u32 nbpcie_ind_read_index(device_t nb_dev, u32 index); +void nbpcie_ind_write_index(device_t nb_dev, u32 index, u32 data); +u32 htiu_read_index(device_t nb_dev, u32 index); +void htiu_write_index(device_t nb_dev, u32 index, u32 data); +u32 nbmc_read_index(device_t nb_dev, u32 index); +void nbmc_write_index(device_t nb_dev, u32 index, u32 data); + +u32 pci_ext_read_config32(device_t nb_dev, device_t dev, u32 reg); +void pci_ext_write_config32(device_t nb_dev, device_t dev, u32 reg, u32 mask, u32 val); + +void set_nbcfg_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask, u32 val); +void set_nbcfg_enable_bits_8(device_t nb_dev, u32 reg_pos, u8 mask, u8 val); +void set_nbmc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask, u32 val); +void set_htiu_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask, u32 val); +void set_nbmisc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask, u32 val); +void set_pcie_enable_bits(device_t dev, u32 reg_pos, u32 mask, u32 val); +void rs690_set_tom(device_t nb_dev); + +void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add); +void enable_pcie_bar3(device_t nb_dev); +void disable_pcie_bar3(device_t nb_dev); + +void rs690_enable(device_t dev); +void rs690_gpp_sb_init(device_t nb_dev, device_t dev, u32 port); +void rs690_gfx_init(device_t nb_dev, device_t dev, u32 port); +void avoid_lpc_dma_deadlock(device_t nb_dev, device_t sb_dev); +void config_gpp_core(device_t nb_dev, device_t sb_dev); +void PcieReleasePortTraining(device_t nb_dev, device_t dev, u32 port); +u8 PcieTrainPort(device_t nb_dev, device_t dev, u32 port); +#endif /* RS690_H */
Added: coreboot-v3/southbridge/amd/rs690/stage1.c =================================================================== --- coreboot-v3/southbridge/amd/rs690/stage1.c (rev 0) +++ coreboot-v3/southbridge/amd/rs690/stage1.c 2008-10-03 15:47:10 UTC (rev 886) @@ -0,0 +1,479 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 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 <types.h> +#include <lib.h> +#include <console.h> +#include <device/pci.h> +#include <msr.h> +#include <legacy.h> +#include <device/pci.h> +#include <statictree.h> +#include <config.h> +#include <io.h> +#include "rs690.h" + + +#define NBHTIU_INDEX 0xA8 +#define NBMISC_INDEX 0x60 +#define NBMC_INDEX 0xE8 + +static u32 nb_read_index(u32 dev, u32 index_reg, u32 index) +{ + pci_conf1_write_config32(dev, index_reg, index); + return pci_conf1_read_config32(dev, index_reg + 0x4); +} + +static void nb_write_index(u32 dev, u32 index_reg, u32 index, u32 data) +{ + pci_conf1_write_config32(dev, index_reg, index /* | 0x80 */ ); + pci_conf1_write_config32(dev, index_reg + 0x4, data); +} + +static u32 nbmisc_read_index(u32 nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBMISC_INDEX, (index)); +} + +static void nbmisc_write_index(u32 nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBMISC_INDEX, ((index) | 0x80), (data)); +} + +static u32 htiu_read_index(u32 nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBHTIU_INDEX, (index)); +} + +static void htiu_write_index(u32 nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBHTIU_INDEX, ((index) | 0x100), (data)); +} + +static u32 nbmc_read_index(u32 nb_dev, u32 index) +{ + return nb_read_index((nb_dev), NBMC_INDEX, (index)); +} + +static void nbmc_write_index(u32 nb_dev, u32 index, u32 data) +{ + nb_write_index((nb_dev), NBMC_INDEX, ((index) | 1 << 9), (data)); +} + +static void set_htiu_enable_bits(u32 nb_dev, u32 reg_pos, u32 mask, + u32 val) +{ + u32 reg_old, reg; + reg = reg_old = htiu_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + htiu_write_index(nb_dev, reg_pos, reg); + } +} + +static void set_nbmisc_enable_bits(u32 nb_dev, u32 reg_pos, u32 mask, + u32 val) +{ + u32 reg_old, reg; + reg = reg_old = nbmisc_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + nbmisc_write_index(nb_dev, reg_pos, reg); + } +} + +static void set_nbcfg_enable_bits(u32 nb_dev, u32 reg_pos, u32 mask, + u32 val) +{ + u32 reg_old, reg; + reg = reg_old = pci_conf1_read_config32(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + pci_conf1_write_config32(nb_dev, reg_pos, reg); + } +} + +static void set_nbcfg_enable_bits_8(u32 nb_dev, u32 reg_pos, u8 mask, + u8 val) +{ + u8 reg_old, reg; + reg = reg_old = pci_conf1_read_config8(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + pci_conf1_write_config8(nb_dev, reg_pos, reg); + } +} + +static void set_nbmc_enable_bits(u32 nb_dev, u32 reg_pos, u32 mask, + u32 val) +{ + u32 reg_old, reg; + reg = reg_old = nbmc_read_index(nb_dev, reg_pos); + reg &= ~mask; + reg |= val; + if (reg != reg_old) { + nbmc_write_index(nb_dev, reg_pos, reg); + } +} + +/* +* Compliant with CIM_33's ATINB_PrepareInit +*/ +static void get_cpu_rev() +{ + u32 eax, ebx, ecx, edx; + __asm__ volatile ("cpuid":"=a" (eax), "=b"(ebx), "=c"(ecx), "=d"(edx) + :"0"(1)); + printk(BIOS_INFO, "get_cpu_rev EAX=0x%x.\n", eax); + if (eax <= 0xfff) + printk(BIOS_INFO, "CPU Rev is K8_Cx.\n"); + else if (eax <= 0x10fff) + printk(BIOS_INFO, "CPU Rev is K8_Dx.\n"); + else if (eax <= 0x20fff) + printk(BIOS_INFO, "CPU Rev is K8_Ex.\n"); + else if (eax <= 0x40fff) + printk(BIOS_INFO, "CPU Rev is K8_Fx.\n"); + else if (eax == 0x60fb1 || eax == 0x60f81) /*These two IDS are exception, they are G1. */ + printk(BIOS_INFO, "CPU Rev is K8_G1.\n"); + else if (eax <= 0X60FF0) + printk(BIOS_INFO, "CPU Rev is K8_G0.\n"); + else if (eax <= 0x100000) + printk(BIOS_INFO, "CPU Rev is K8_G1.\n"); + else + printk(BIOS_INFO, "CPU Rev is K8_10.\n"); +} + +static u8 get_nb_rev(u32 nb_dev) +{ + u32 reg; + reg = pci_conf1_read_config32(nb_dev, 0x00); + if (0x7911 == (reg >> 16)) + return 7; + reg = pci_conf1_read_config8(nb_dev, 0x89); /* copy from CIM, can't find in doc */ + if (reg & 0x2) /* check bit1 */ + return 7; + if (reg & 0x1) /* check bit0 */ + return 6; + else + return 5; +} + +/***************************************** +* Compliant with CIM_33's ATINB_HTInit +* Init HT link speed/width for rs690 -- k8 link +*****************************************/ +static void rs690_htinit() +{ + /* + * About HT, it has been done in enumerate_ht_chain(). + */ + u32 k8_f0; + u32 reg; + u8 k8_ht_freq; + + k8_f0 = PCI_DEV(0, 0x18, 0); + /************************ + * get k8's ht freq, in k8's function 0, offset 0x88 + * bit11-8, specifics the maximum operation frequency of the link's transmitter clock. + * The link frequency field (Frq) is cleared by cold reset. SW can write a nonzero + * value to this reg, and that value takes effect on the next warm reset or + * LDTSTOP_L disconnect sequence. + * 0000b = 200Mhz + * 0010b = 400Mhz + * 0100b = 600Mhz + * 0101b = 800Mhz + * 0110b = 1Ghz + * 1111b = 1Ghz + ************************/ + reg = pci_conf1_read_config32(k8_f0, 0x88); + k8_ht_freq = (reg & 0xf00) >> 8; + printk(BIOS_INFO, "rs690_ht_init k8_ht_freq=%x.\n", k8_ht_freq); +} + +/******************************************************* +* Optimize k8 with UMA. +* See BKDG_NPT_0F guide for details. +* The processor node is addressed by its Node ID on the HT link and can be +* accessed with a device number in the PCI configuration space on Bus0. +* The Node ID 0 is mapped to Device 24 (0x18), the Node ID 1 is mapped +* to Device 25, and so on. +* The processor implements configuration registers in PCI configuration +* space using the following four headers +* Function0: HT technology configuration +* Function1: Address map configuration +* Function2: DRAM and HT technology Trace mode configuration +* Function3: Miscellaneous configuration +*******************************************************/ +static void k8_optimization() +{ + u32 k8_f0, k8_f2, k8_f3; + msr_t msr; + + printk(BIOS_INFO, "k8_optimization()\n"); + k8_f0 = PCI_DEV(0, 0x18, 0); + k8_f2 = PCI_DEV(0, 0x18, 2); + k8_f3 = PCI_DEV(0, 0x18, 3); + + pci_conf1_write_config32(k8_f0, 0x90, 0x01700178); /* CIM NPT_Optimization */ + set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 28, 0 << 28); + set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 26 | 1 << 27, + 1 << 26 | 1 << 27); + set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 11, 1 << 11); + set_nbcfg_enable_bits(k8_f0, 0x84, 1 << 11 | 1 << 13 | 1 << 15, 1 << 11 | 1 << 13 | 1 << 15); /* TODO */ + + pci_conf1_write_config32(k8_f3, 0x70, 0x51320111); /* CIM NPT_Optimization */ + pci_conf1_write_config32(k8_f3, 0x74, 0x50304021); + pci_conf1_write_config32(k8_f3, 0x78, 0x08002A00); + if (pci_conf1_read_config32(k8_f3, 0xE8) & 0x3<<12) + pci_conf1_write_config32(k8_f3, 0x7C, 0x0000211B); /* dual core */ + else + pci_conf1_write_config32(k8_f3, 0x7C, 0x0000211C); /* single core */ + set_nbcfg_enable_bits_8(k8_f3, 0xDC, 0xFF, 0x25); + + set_nbcfg_enable_bits(k8_f2, 0xA0, 1 << 5, 1 << 5); + set_nbcfg_enable_bits(k8_f2, 0x94, 0xF << 24, 7 << 24); + set_nbcfg_enable_bits(k8_f2, 0x90, 1 << 10, 1 << 10); + set_nbcfg_enable_bits(k8_f2, 0xA0, 3 << 2, 3 << 2); + set_nbcfg_enable_bits(k8_f2, 0xA0, 1 << 5, 1 << 5); + + msr = rdmsr(0xC001001F); + msr.lo &= ~(1 << 9); + msr.hi &= ~(1 << 4); + wrmsr(0xC001001F, msr); +} + +/***************************************** +* Compliant with CIM_33's ATINB_PCICFG_POR_TABLE +*****************************************/ +static void rs690_por_pcicfg_init(u32 nb_dev) +{ + /* enable PCI Memory Access */ + set_nbcfg_enable_bits_8(nb_dev, 0x04, (u8)(~0xFD), 0x02); + /* Set RCRB Enable */ + set_nbcfg_enable_bits_8(nb_dev, 0x84, (u8)(~0xFF), 0x1); + /* allow decode of 640k-1MB */ + set_nbcfg_enable_bits_8(nb_dev, 0x84, (u8)(~0xEF), 0x10); + /* Enable PM2_CNTL(BAR2) IO mapped cfg write access to be broadcast to both NB and SB */ + set_nbcfg_enable_bits_8(nb_dev, 0x84, (u8)(~0xFF), 0x4); + /* Power Management Register Enable */ + set_nbcfg_enable_bits_8(nb_dev, 0x84, (u8)(~0xFF), 0x80); + + /* Reg4Ch[1]=1 (APIC_ENABLE) force cpu request with address 0xFECx_xxxx to south-bridge + * Reg4Ch[6]=1 (BMMsgEn) enable BM_Set message generation + * BMMsgEn */ + set_nbcfg_enable_bits_8(nb_dev, 0x4C, (u8)(~0x00), 0x42 | 1); + + /* Reg4Ch[16]=1 (WakeC2En) enable Wake_from_C2 message generation. + * Reg4Ch[18]=1 (P4IntEnable) Enable north-bridge to accept MSI with address 0xFEEx_xxxx from south-bridge */ + set_nbcfg_enable_bits_8(nb_dev, 0x4E, (u8)(~0xFF), 0x05); + /* Reg94h[4:0] = 0x0 P drive strength offset 0 + * Reg94h[6:5] = 0x2 P drive strength additive adjust */ + set_nbcfg_enable_bits_8(nb_dev, 0x94, (u8)(~0x80), 0x40); + + /* Reg94h[20:16] = 0x0 N drive strength offset 0 + * Reg94h[22:21] = 0x2 N drive strength additive adjust */ + set_nbcfg_enable_bits_8(nb_dev, 0x96, (u8)(~0x80), 0x40); + + /* Reg80h[4:0] = 0x0 Termination offset + * Reg80h[6:5] = 0x2 Termination additive adjust */ + set_nbcfg_enable_bits_8(nb_dev, 0x80, (u8)(~0x80), 0x40); + + /* Reg80h[14] = 0x1 Enable receiver termination control */ + set_nbcfg_enable_bits_8(nb_dev, 0x81, (u8)(~0xFF), 0x40); + + /* Reg94h[15] = 0x1 Enables HT transmitter advanced features to be turned on + * Reg94h[14] = 0x1 Enable drive strength control */ + set_nbcfg_enable_bits_8(nb_dev, 0x95, (u8)(~0x3F), 0xC4); + + /* Reg94h[31:29] = 0x7 Enables HT transmitter de-emphasis */ + set_nbcfg_enable_bits_8(nb_dev, 0x97, (u8)(~0x1F), 0xE0); + + /*Reg8Ch[10:9] = 0x3 Enables Gfx Debug BAR, + * force this BAR as mem type in rs690_gfx.c */ + set_nbcfg_enable_bits_8(nb_dev, 0x8D, (u8)(~0xFF), 0x03); + +} + +/***************************************** +* Compliant with CIM_33's ATINB_MCIndex_POR_TABLE +*****************************************/ +static void rs690_por_mc_index_init(u32 nb_dev) +{ + set_nbmc_enable_bits(nb_dev, 0x7A, ~0xFFFFFF80, 0x0000005F); + set_nbmc_enable_bits(nb_dev, 0xD8, ~0x00000000, 0x00600060); + set_nbmc_enable_bits(nb_dev, 0xD9, ~0x00000000, 0x00600060); + set_nbmc_enable_bits(nb_dev, 0xE0, ~0x00000000, 0x00000000); + set_nbmc_enable_bits(nb_dev, 0xE1, ~0x00000000, 0x00000000); + set_nbmc_enable_bits(nb_dev, 0xE8, ~0x00000000, 0x003E003E); + set_nbmc_enable_bits(nb_dev, 0xE9, ~0x00000000, 0x003E003E); +} + +/***************************************** +* Compliant with CIM_33's ATINB_MISCIND_POR_TABLE +* Compliant with CIM_33's MISC_INIT_TBL +*****************************************/ +static void rs690_por_misc_index_init(u32 nb_dev) +{ + /* NB_MISC_IND_WR_EN + IOC_PCIE_CNTL + * Block non-snoop DMA request if PMArbDis is set. + * Set BMSetDis */ + set_nbmisc_enable_bits(nb_dev, 0x0B, ~0xFFFF0000, 0x00000180); + set_nbmisc_enable_bits(nb_dev, 0x01, ~0xFFFFFFFF, 0x00000040); + + /* NBCFG (NBMISCIND 0x0): NB_CNTL - + * HIDE_NB_AGP_CAP ([0], default=1)HIDE + * HIDE_P2P_AGP_CAP ([1], default=1)HIDE + * HIDE_NB_GART_BAR ([2], default=1)HIDE + * AGPMODE30 ([4], default=0)DISABLE + * AGP30ENCHANCED ([5], default=0)DISABLE + * HIDE_AGP_CAP ([8], default=1)ENABLE */ + set_nbmisc_enable_bits(nb_dev, 0x00, ~0xFFFF0000, 0x00000506); /* set bit 10 for MSI */ + + /* NBMISCIND:0x6A[16]= 1 SB link can get a full swing + * set_nbmisc_enable_bits(nb_dev, 0x6A, 0ffffffffh, 000010000); + * NBMISCIND:0x6A[17]=1 Set CMGOOD_OVERRIDE. */ + set_nbmisc_enable_bits(nb_dev, 0x6A, ~0xffffffff, 0x00020000); + + /* NBMISIND:0x40 Bit[8]=1 and Bit[10]=1 following bits are required to set in order to allow LVDS or PWM features to work. */ + set_nbmisc_enable_bits(nb_dev, 0x40, ~0xffffffff, 0x00000500); + + /* NBMISIND:0xC Bit[13]=1 Enable GSM mode for C1e or C3 with pop-up. */ + set_nbmisc_enable_bits(nb_dev, 0x0C, ~0xffffffff, 0x00002000); + + /* Set NBMISIND:0x1F[3] to map NB F2 interrupt pin to INTB# */ + set_nbmisc_enable_bits(nb_dev, 0x1F, ~0xffffffff, 0x00000008); + + /* Compliant with CIM_33's MISC_INIT_TBL, except Hide NB_BAR3_PCIE + * Enable access to DEV8 + * Enable setPower message for all ports + */ + set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6, 1 << 6); + set_nbmisc_enable_bits(nb_dev, 0x0b, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x51, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x53, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x55, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x57, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x59, 1 << 20, 1 << 20); + set_nbmisc_enable_bits(nb_dev, 0x5B, 1 << 20, 1 << 20); + + set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 7, 1 << 7); + set_nbmisc_enable_bits(nb_dev, 0x07, 0x000000f0, 0x30); + /* Disable bus-master trigger event from SB and Enable set_slot_power message to SB */ + set_nbmisc_enable_bits(nb_dev, 0x0B, 0xffffffff, 0x500180); +} + +/***************************************** +* Compliant with CIM_33's ATINB_HTIUNBIND_POR_TABLE +*****************************************/ +static void rs690_por_htiu_index_init(u32 nb_dev) +{ + /* 0xBC: + * Enables GSM mode for C1e or C3 with pop-up + * Prevents AllowLdtStop from being asserted during HT link recovery + * Allows FID cycles to be serviced faster. Needed for RS690 A12. No harm in RS690 A11 */ + set_htiu_enable_bits(nb_dev, 0x05, ~0xffffffff, 0x0BC); + /* 0x4203A202: + * Enables writes to pass in-progress reads + * Enables streaming of CPU writes + * Enables extended write buffer for CPU writes + * Enables additional response buffers + * Enables special reads to pass writes + * Enables decoding of C1e/C3 and FID cycles + * Enables HTIU-display handshake bypass. + * Enables tagging fix */ + set_htiu_enable_bits(nb_dev, 0x06, ~0xFFFFFFFE, 0x4203A202); + + /* Enables byte-write optimization for IOC requests + * Disables delaying STPCLK de-assert during FID sequence. Needed when enhanced UMA arbitration is used. + * Disables upstream system-management delay */ + set_htiu_enable_bits(nb_dev, 0x07, ~0xFFFFFFF9, 0x001); + + /* HTIUNBIND 0x16 [1] = 0x1 Enable crc decoding fix */ + set_htiu_enable_bits(nb_dev, 0x16, ~0xFFFFFFFF, 0x2); +} + +/***************************************** +* Compliant with CIM_33's ATINB_POR_INIT_JMPDI +* Configure RS690 registers to power-on default RPR. +* POR: Power On Reset +* RPR: Register Programming Requirements +*****************************************/ +static void rs690_por_init(u32 nb_dev) +{ + printk(BIOS_INFO, "rs690_por_init\n"); + /* ATINB_PCICFG_POR_TABLE, initialize the values for rs690 PCI Config registers */ + rs690_por_pcicfg_init(nb_dev); + + /* ATINB_MCIND_POR_TABLE */ + rs690_por_mc_index_init(nb_dev); + + /* ATINB_MISCIND_POR_TABLE */ + rs690_por_misc_index_init(nb_dev); + + /* ATINB_HTIUNBIND_POR_TABLE */ + rs690_por_htiu_index_init(nb_dev); + + /* ATINB_CLKCFG_PORT_TABLE */ + /* rs690 A11 SB Link full swing? */ +} + +/* enable CFG access to Dev8, which is the SB P2P Bridge */ +static void enable_rs690_dev8() +{ + set_nbmisc_enable_bits(PCI_DEV(0, 0, 0), 0x00, 1 << 6, 1 << 6); +} + + + +/* +* Compliant with CIM_33's AtiNBInitEarlyPost (AtiInitNBBeforePCIInit). +*/ +void rs690_before_pci_init() +{ +} + +/* +* The calling sequence is same as CIM. +*/ +void rs690_early_setup() +{ + u32 nb_dev = PCI_DEV(0, 0, 0); + printk(BIOS_INFO, "rs690_early_setup()\n"); + + /*ATINB_PrepareInit */ + get_cpu_rev(); + switch (get_nb_rev(nb_dev)) { /* PCIEMiscInit */ + case 5: + printk(BIOS_INFO, "NB Revision is A11.\n"); + break; + case 6: + printk(BIOS_INFO, "NB Revision is A12.\n"); + break; + case 7: + printk(BIOS_INFO, "NB Revision is A21.\n"); + break; + } + + rs690_htinit(); + k8_optimization(); + rs690_por_init(nb_dev); +}