/* * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. * Copyright (C) 2015 Timothy Pearson , Raptor Engineering * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include "sb700.h" static int sata_drive_detect(int portnum, uint16_t iobar) { u8 byte, byte2; u8 byte_prev, byte2_prev; int i = 0; byte_prev = byte2_prev = 0; outb(0xa0 + 0x10 * (portnum % 2), iobar + 0x6); while (byte = inb(iobar + 0x6), byte2 = inb(iobar + 0x7), (byte != (0xa0 + 0x10 * (portnum % 2))) || ((byte2 & 0x88) != 0)) { if ((byte != byte_prev) || (byte2 != byte2_prev)) printk(BIOS_SPEW, "0x6=%x, 0x7=%x\n", byte, byte2); if (byte != (0xa0 + 0x10 * (portnum % 2))) { /* This will happen at the first iteration of this loop * if the first SATA port is unpopulated and the * second SATA port is populated. */ printk(BIOS_DEBUG, "drive no longer selected after %i ms, " "retrying init\n", i * 10); return 1; } else { if (i == 0) printk(BIOS_SPEW, "drive detection not yet completed, " "waiting...\n"); } mdelay(10); i++; byte_prev = byte; byte2_prev = byte2; /* Detect stuck SATA controller and attempt reset */ if (i > 1024) { printk(BIOS_DEBUG, "drive detection not done after %i ms, " "resetting HBA and retrying init\n", i * 10); return 2; } } printk(BIOS_SPEW, "drive detection done after %i ms\n", i * 10); return 0; } /* This function can be overloaded in mainboard.c */ void __weak sb7xx_51xx_setup_sata_phys(struct device *dev) { /* RPR7.6.1 Program the PHY Global Control to 0x2C00 */ pci_write_config16(dev, 0x86, 0x2c00); /* RPR7.6.2 SATA GENI PHY ports setting */ pci_write_config32(dev, 0x88, 0x01B48017); pci_write_config32(dev, 0x8c, 0x01B48019); pci_write_config32(dev, 0x90, 0x01B48016); pci_write_config32(dev, 0x94, 0x01B48016); pci_write_config32(dev, 0x98, 0x01B48016); pci_write_config32(dev, 0x9c, 0x01B48016); /* RPR7.6.3 SATA GEN II PHY port setting for port [0~5]. */ pci_write_config16(dev, 0xa0, 0xA09A); pci_write_config16(dev, 0xa2, 0xA09F); pci_write_config16(dev, 0xa4, 0xA07A); pci_write_config16(dev, 0xa6, 0xA07A); pci_write_config16(dev, 0xa8, 0xA07A); pci_write_config16(dev, 0xaa, 0xA07A); } /* This function can be overloaded in mainboard.c */ void __weak sb7xx_51xx_setup_sata_port_indication(void *sata_bar5) { uint32_t dword; /* RPR7.9 Program Port Indication Registers */ dword = read32(sata_bar5 + 0xf8); dword &= ~(0x3f << 12); /* Ports 0 and 1 are eSATA */ dword |= (0x3 << 12); dword &= ~0x3f; write32(sata_bar5 + 0xf8, dword); dword = read32(sata_bar5 + 0xfc); dword |= 0x1 << 20; /* At least one eSATA port is present */ write32(sata_bar5 + 0xfc, dword); } static void sata_init(struct device *dev) { u8 byte; u16 word; u32 dword; u8 rev_id; void *sata_bar5; uint16_t sata_bar0, sata_bar1, sata_bar2, sata_bar3, sata_bar4; uint16_t ide_bar0, ide_bar1, ide_bar2, ide_bar3; uint16_t current_bar; int i, j, ret; uint8_t nvram; uint8_t sata_ahci_mode; uint8_t sata_alpm_enable; uint8_t port_count; uint8_t max_port_count; uint8_t ide_io_enabled; uint8_t ide_legacy_io_enabled; sata_ahci_mode = 0; if (get_option(&nvram, "sata_ahci_mode") == CB_SUCCESS) sata_ahci_mode = !!nvram; sata_alpm_enable = 0; if (get_option(&nvram, "sata_alpm") == CB_SUCCESS) sata_alpm_enable = !!nvram; device_t sm_dev; /* SATA SMBus Disable */ sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); /* WARNING * Enabling the SATA link latency enhancement (SMBUS 0xAD bit 5) * causes random persistent drive detection failures until it is cleared, * with the probabability of detection failure rising exponentially with * the number of drives attached to the controller! * This happens on Rev15 H/W. * Do NOT follow the RPR advice; leave this bit set at all times... */ byte = pci_read_config8(sm_dev, 0xad); /* Disable SATA SMBUS */ byte |= (1 << 1); /* Enable SATA and power saving */ byte |= (1 << 0); /* Disable link latency enhancement */ byte |= (1 << 5); pci_write_config8(sm_dev, 0xad, byte); /* Take the PHY logic out of reset */ word = pci_read_config16(dev, 0x84); word |= 0x1 << 2; word &= ~0x1f8; pci_write_config16(dev, 0x84, word); /* get rev_id */ rev_id = pci_read_config8(sm_dev, 0x08) - 0x28; printk(BIOS_SPEW, "rev_id=%x\n", rev_id); /* Enable combined mode */ byte = pci_read_config8(sm_dev, 0xad); byte |= (1 << 3); pci_write_config8(sm_dev, 0xad, byte); device_t ide_dev; /* IDE Device */ ide_dev = dev_find_slot(0, PCI_DEVFN(0x14, 1)); /* Disable legacy IDE mode (enable PATA_BAR0/2) */ byte = pci_read_config8(ide_dev, 0x09); ide_legacy_io_enabled = !(byte & 0x1); byte |= 0x1; pci_write_config8(ide_dev, 0x09, byte); /* Enable IDE I/O access (enable PATA_BAR0/2) */ byte = pci_read_config8(ide_dev, 0x04); ide_io_enabled = byte & 0x1; byte |= 0x1; pci_write_config8(ide_dev, 0x04, byte); /* RPR 7.2 SATA Initialization */ /* Set the interrupt Mapping to INTG# */ byte = pci_read_config8(sm_dev, 0xaf); byte = 0x6 << 2; pci_write_config8(sm_dev, 0xaf, byte); /* get base address */ sata_bar5 = (void *)(pci_read_config32(dev, 0x24) & ~0x3FF); sata_bar0 = pci_read_config16(dev, 0x10) & ~0x7; sata_bar1 = pci_read_config16(dev, 0x14) & ~0x3; sata_bar2 = pci_read_config16(dev, 0x18) & ~0x7; sata_bar3 = pci_read_config16(dev, 0x1c) & ~0x3; sata_bar4 = pci_read_config16(dev, 0x20) & ~0xf; printk(BIOS_SPEW, "sata_bar0=%x\n", sata_bar0); /* 3030 */ printk(BIOS_SPEW, "sata_bar1=%x\n", sata_bar1); /* 3070 */ printk(BIOS_SPEW, "sata_bar2=%x\n", sata_bar2); /* 3040 */ printk(BIOS_SPEW, "sata_bar3=%x\n", sata_bar3); /* 3080 */ printk(BIOS_SPEW, "sata_bar4=%x\n", sata_bar4); /* 3000 */ printk(BIOS_SPEW, "sata_bar5=%p\n", sata_bar5); /* e0309000 */ ide_bar0 = pci_read_config16(ide_dev, 0x10) & ~0x7; ide_bar1 = pci_read_config16(ide_dev, 0x14) & ~0x3; ide_bar2 = pci_read_config16(ide_dev, 0x18) & ~0x7; ide_bar3 = pci_read_config16(ide_dev, 0x1c) & ~0x3; printk(BIOS_SPEW, "ide_bar0=%x\n", ide_bar0); printk(BIOS_SPEW, "ide_bar1=%x\n", ide_bar1); printk(BIOS_SPEW, "ide_bar2=%x\n", ide_bar2); printk(BIOS_SPEW, "ide_bar3=%x\n", ide_bar3); /* Program the Subsystem ID/VID to 0x43801002 */ dword = 0x43801002; pci_write_config32(dev, 0x2c, dword); /* SERR-Enable */ word = pci_read_config16(dev, 0x04); word |= (1 << 8); pci_write_config16(dev, 0x04, word); /* Dynamic power saving */ byte = pci_read_config8(dev, 0x40); byte |= (1 << 2); pci_write_config8(dev, 0x40, byte); /* Unlock subclass and certain BAR R/O registers */ byte = pci_read_config8(dev, 0x40); byte |= (1 << 0); pci_write_config8(dev, 0x40, byte); /* Disable AHCI enhancement (AMD SP5100 RPR page 54) */ dword = pci_read_config32(dev, 0x40); dword |= (1 << 23); pci_write_config32(dev, 0x40, dword); if (sata_ahci_mode) { /* Force number of ports to 6 * NOTE: This is not documented in the register * reference guide, but CIMX needs to do this * to activate all 6 ports when IDE is disabled. */ dword = read32(sata_bar5 + 0x00); dword &= ~0x7; dword |= 0x5; write32(sata_bar5 + 0x00, dword); } else { /* Set SATA Operation Mode, Set to IDE mode */ byte = pci_read_config8(dev, 0x40); byte |= (1 << 4); pci_write_config8(dev, 0x40, byte); dword = 0x01018f00; pci_write_config32(dev, 0x8, dword); } /* Get maximum number of ports */ max_port_count = read32(sata_bar5 + 0x00) & 0x1f; max_port_count++; printk(BIOS_SPEW, "Maximum SATA port count supported by silicon: %d\n", max_port_count); /* Set number of ports */ dword = CONFIG_SOUTHBRIDGE_AMD_SB700_SATA_PORT_COUNT_BITFIELD; for (i = max_port_count; i < 32; i++) dword &= ~(0x1 << i); write32(sata_bar5 + 0x0c, dword); /* Disable ALPM if ALPM support not requested */ if (!sata_alpm_enable) { dword = read32(sata_bar5 + 0xfc); dword &= ~(0x1 << 11); /* Disable ALPM */ write32(sata_bar5 + 0xfc, dword); } /* Enable SATA ports */ byte = pci_read_config8(dev, 0x42); if (max_port_count <= 6) { byte |= 0x3f; for (i = 0; i < max_port_count; i++) byte &= ~(0x1 << i); } else { byte &= ~0x3f; } pci_write_config8(dev, 0x42, byte); if (sata_ahci_mode) { /* FIXME * SeaBIOS does not know how to spin * up the drives and therefore hangs * in AHCI init if this is enabled... */ /* Enable staggered spin-up */ dword = read32(sata_bar5 + 0x00); #if 0 dword |= 0x1 << 27; #else dword &= ~(0x1 << 27); #endif write32(sata_bar5 + 0x00, dword); /* Reset the HBA to avoid stuck drives in SeaBIOS */ dword = read32(sata_bar5 + 0x04); dword |= 0x1; write32(sata_bar5 + 0x04, dword); } sb7xx_51xx_setup_sata_phys(dev); sb7xx_51xx_setup_sata_port_indication(sata_bar5); /* Write protect Sub-Class Code */ byte = pci_read_config8(dev, 0x40); byte &= ~(1 << 0); pci_write_config8(dev, 0x40, byte); /* Enable the SATA watchdog counter */ byte = pci_read_config8(dev, 0x44); byte |= (1 << 0); pci_write_config8(dev, 0x44, byte); /* Set bit 29 and 24 for A12 */ dword = pci_read_config32(dev, 0x40); if (rev_id < 0x14) /* before A12 */ dword |= (1 << 29); else dword &= ~(1 << 29); /* A14 and above */ pci_write_config32(dev, 0x40, dword); /* set bit 21 for A12 */ dword = pci_read_config32(dev, 0x48); if (rev_id < 0x14) /* before A12 */ dword |= 1 << 24 | 1 << 21; else { dword &= ~(1 << 24 | 1 << 21); /* A14 and above */ dword &= ~0xFF80; /* 15:7 */ dword |= 1 << 15 | 0x7F << 7 | 1 << 6; } pci_write_config32(dev, 0x48, dword); /* Program the watchdog counter to 0x10 */ byte = 0x10; pci_write_config8(dev, 0x46, byte); /* Enable the I/O, MM, BusMaster access for SATA */ byte = pci_read_config8(dev, 0x4); byte |= 7 << 0; pci_write_config8(dev, 0x4, byte); #if IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_SUBTYPE_SP5100) /* Master Latency Timer */ pci_write_config32(dev, 0xC, 0x00004000); #endif /* Determine port count */ port_count = 0; for (i = 0; i < 32; i++) { if (CONFIG_SOUTHBRIDGE_AMD_SB700_SATA_PORT_COUNT_BITFIELD & (0x1 << i)) port_count = i; } port_count++; if (port_count > max_port_count) port_count = max_port_count; /* Send COMRESET to all ports */ for (i = 0; i < port_count; i++) { /* Read in Port-N Serial ATA Control Register */ byte = read8(sata_bar5 + 0x12C + 0x80 * i); /* Set Reset Bit */ byte |= 0x1; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1ms */ mdelay(1); /* Clear Reset Bit */ byte &= ~0x01; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1ms */ mdelay(1); } /* RPR7.7 SATA drive detection. */ /* Use BAR5+0x128,BAR0 for Primary Slave */ /* Use BAR5+0x1A8,BAR0 for Primary Slave */ /* Use BAR5+0x228,BAR2 for Secondary Master */ /* Use BAR5+0x2A8,BAR2 for Secondary Slave */ /* Use BAR5+0x328,PATA_BAR0/2 for Primary/Secondary Master emulation */ /* Use BAR5+0x3A8,PATA_BAR0/2 for Primary/Secondary Slave emulation */ for (i = 0; i < port_count; i++) { byte = read8(sata_bar5 + 0x128 + 0x80 * i); printk(BIOS_SPEW, "SATA port %i status = %x\n", i, byte); byte &= 0xF; if (byte == 0x1) { /* If the drive status is 0x1 then we see it but we aren't talking to it. */ /* Try to do something about it. */ printk(BIOS_SPEW, "SATA device detected but not talking. Trying lower speed.\n"); /* Read in Port-N Serial ATA Control Register */ byte = read8(sata_bar5 + 0x12C + 0x80 * i); /* Set Reset Bit and 1.5g bit */ byte |= 0x11; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1ms */ mdelay(1); /* Clear Reset Bit */ byte &= ~0x01; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1ms */ mdelay(1); /* Reread status */ byte = read8(sata_bar5 + 0x128 + 0x80 * i); printk(BIOS_SPEW, "SATA port %i status = %x\n", i, byte); byte &= 0xF; } if (byte == 0x3) { for (j = 0; j < 10; j++) { if (i < 4) current_bar = ((i / 2) == 0) ? sata_bar0 : sata_bar2; else current_bar = (pci_read_config8(sm_dev, 0xad) & (0x1 << 4)) ? ide_bar2 : ide_bar0; ret = sata_drive_detect(i, current_bar); if (ret == 0) { break; } else if (ret == 2) { /* Read in Port-N Serial ATA Control Register */ byte = read8(sata_bar5 + 0x12C + 0x80 * i); /* Set Reset Bit */ byte |= 0x1; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1000ms */ mdelay(1000); /* Clear Reset Bit */ byte &= ~0x01; write8((sata_bar5 + 0x12C + 0x80 * i), byte); /* Wait 1ms */ mdelay(1); } } if (sata_ahci_mode) printk(BIOS_DEBUG, "AHCI device %d is %sready after %i tries\n", i, (j == 10) ? "not " : "", (j == 10) ? j : j + 1); else printk(BIOS_DEBUG, "%s %s device is %sready after %i tries\n", (i / 2) ? "Secondary" : "Primary", (i % 2 ) ? "Slave" : "Master", (j == 10) ? "not " : "", (j == 10) ? j : j + 1); } else { if (sata_ahci_mode) printk(BIOS_DEBUG, "No AHCI SATA drive on Slot%i\n", i); else printk(BIOS_DEBUG, "No %s %s SATA drive on Slot%i\n", (i / 2) ? "Secondary" : "Primary", (i % 2 ) ? "Slave" : "Master", i); } } /* Restore IDE I/O access */ if (!ide_io_enabled) { byte = pci_read_config8(ide_dev, 0x04); byte &= ~0x1; pci_write_config8(ide_dev, 0x04, byte); } /* Re-enable legacy IDE mode */ if (ide_legacy_io_enabled) { byte = pci_read_config8(ide_dev, 0x09); byte &= ~0x1; pci_write_config8(ide_dev, 0x09, byte); } /* Below is CIM InitSataLateFar */ if (sata_ahci_mode) { /* Disable combined mode */ byte = pci_read_config8(sm_dev, 0xad); byte &= ~(1 << 3); pci_write_config8(sm_dev, 0xad, byte); } else { /* Enable interrupts from the HBA */ byte = read8(sata_bar5 + 0x4); byte |= 1 << 1; write8((sata_bar5 + 0x4), byte); } /* Clear error status */ write32((sata_bar5 + 0x130), 0xFFFFFFFF); write32((sata_bar5 + 0x1b0), 0xFFFFFFFF); write32((sata_bar5 + 0x230), 0xFFFFFFFF); write32((sata_bar5 + 0x2b0), 0xFFFFFFFF); write32((sata_bar5 + 0x330), 0xFFFFFFFF); write32((sata_bar5 + 0x3b0), 0xFFFFFFFF); /* Clear SATA status,Firstly we get the AcpiGpe0BlkAddr */ /* ????? why CIM does not set the AcpiGpe0BlkAddr , but use it??? */ /* word = 0x0000; */ /* word = pm_ioread(0x28); */ /* byte = pm_ioread(0x29); */ /* word |= byte<<8; */ /* printk(BIOS_DEBUG, "AcpiGpe0Blk addr = %x\n", word); */ /* write32(word, 0x80000000); */ } static struct pci_operations lops_pci = { .set_subsystem = pci_dev_set_subsystem, }; static struct device_operations sata_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = sata_init, .scan_bus = 0, .ops_pci = &lops_pci, }; static const struct pci_driver sata0_driver __pci_driver = { .ops = &sata_ops, .vendor = PCI_VENDOR_ID_ATI, .device = PCI_DEVICE_ID_ATI_SB700_SATA, }; static const struct pci_driver sata1_driver __pci_driver = { .ops = &sata_ops, .vendor = PCI_VENDOR_ID_ATI, .device = PCI_DEVICE_ID_ATI_SB700_SATA_AHCI, }; static const struct pci_driver sata2_driver __pci_driver = { .ops = &sata_ops, .vendor = PCI_VENDOR_ID_ATI, .device = PCI_DEVICE_ID_ATI_SB700_SATA_AHCI_AMD, };