| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2008-2009 coresystems GmbH |
| * Copyright (C) 2014 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <delay.h> |
| #include <soc/iobp.h> |
| #include <soc/ramstage.h> |
| #include <soc/rcba.h> |
| #include <soc/sata.h> |
| #include <soc/intel/broadwell/chip.h> |
| |
| static inline u32 sir_read(struct device *dev, int idx) |
| { |
| pci_write_config32(dev, SATA_SIRI, idx); |
| return pci_read_config32(dev, SATA_SIRD); |
| } |
| |
| static inline void sir_write(struct device *dev, int idx, u32 value) |
| { |
| pci_write_config32(dev, SATA_SIRI, idx); |
| pci_write_config32(dev, SATA_SIRD, value); |
| } |
| |
| static void sata_init(struct device *dev) |
| { |
| config_t *config = config_of(dev); |
| u32 reg32; |
| u8 *abar; |
| u16 reg16; |
| int port; |
| |
| printk(BIOS_DEBUG, "SATA: Initializing controller in AHCI mode.\n"); |
| |
| /* Enable BARs */ |
| pci_write_config16(dev, PCI_COMMAND, 0x0007); |
| |
| /* Set Interrupt Line */ |
| /* Interrupt Pin is set by D31IP.PIP */ |
| pci_write_config8(dev, PCI_INTERRUPT_LINE, 0x0a); |
| |
| /* Set timings */ |
| pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE); |
| pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE); |
| |
| /* for AHCI, Port Enable is managed in memory mapped space */ |
| reg16 = pci_read_config16(dev, 0x92); |
| reg16 &= ~0xf; |
| reg16 |= 0x8000 | config->sata_port_map; |
| pci_write_config16(dev, 0x92, reg16); |
| udelay(2); |
| |
| /* Setup register 98h */ |
| reg32 = pci_read_config32(dev, 0x98); |
| reg32 &= ~((1 << 31) | (1 << 30)); |
| reg32 |= 1 << 23; |
| reg32 |= 1 << 24; /* Enable MPHY Dynamic Power Gating */ |
| pci_write_config32(dev, 0x98, reg32); |
| |
| /* Setup register 9Ch */ |
| reg16 = (1 << 5); /* BWG step 12 */ |
| pci_write_config16(dev, 0x9c, reg16); |
| |
| /* SATA Initialization register */ |
| reg32 = 0x183; |
| reg32 |= (config->sata_port_map ^ 0xf) << 24; |
| reg32 |= (config->sata_devslp_mux & 1) << 15; |
| pci_write_config32(dev, 0x94, reg32); |
| |
| /* Initialize AHCI memory-mapped space */ |
| abar = (u8 *)(pci_read_config32(dev, PCI_BASE_ADDRESS_5)); |
| printk(BIOS_DEBUG, "ABAR: %p\n", abar); |
| |
| /* CAP (HBA Capabilities) : enable power management */ |
| reg32 = read32(abar + 0x00); |
| reg32 |= 0x0c006000; /* set PSC+SSC+SALP+SSS */ |
| reg32 &= ~0x00020060; /* clear SXS+EMS+PMS */ |
| reg32 |= (1 << 18); /* SAM: SATA AHCI MODE ONLY */ |
| write32(abar + 0x00, reg32); |
| |
| /* PI (Ports implemented) */ |
| write32(abar + 0x0c, config->sata_port_map); |
| (void) read32(abar + 0x0c); /* Read back 1 */ |
| (void) read32(abar + 0x0c); /* Read back 2 */ |
| |
| /* CAP2 (HBA Capabilities Extended)*/ |
| if (config->sata_devslp_disable) { |
| reg32 = read32(abar + 0x24); |
| reg32 &= ~(1 << 3); |
| write32(abar + 0x24, reg32); |
| } else { |
| /* Enable DEVSLP */ |
| reg32 = read32(abar + 0x24); |
| reg32 |= (1 << 5)|(1 << 4)|(1 << 3)|(1 << 2); |
| write32(abar + 0x24, reg32); |
| |
| for (port = 0; port < 4; port++) { |
| if (!(config->sata_port_map & (1 << port))) |
| continue; |
| reg32 = read32(abar + 0x144 + (0x80 * port)); |
| reg32 |= (1 << 1); /* DEVSLP DSP */ |
| write32(abar + 0x144 + (0x80 * port), reg32); |
| } |
| } |
| |
| /* |
| * Static Power Gating for unused ports |
| */ |
| reg32 = RCBA32(0x3a84); |
| /* Port 3 and 2 disabled */ |
| if ((config->sata_port_map & ((1 << 3)|(1 << 2))) == 0) |
| reg32 |= (1 << 24) | (1 << 26); |
| /* Port 1 and 0 disabled */ |
| if ((config->sata_port_map & ((1 << 1)|(1 << 0))) == 0) |
| reg32 |= (1 << 20) | (1 << 18); |
| RCBA32(0x3a84) = reg32; |
| |
| /* Set Gen3 Transmitter settings if needed */ |
| if (config->sata_port0_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP0_SECRT88, |
| ~(SATA_SECRT88_VADJ_MASK << |
| SATA_SECRT88_VADJ_SHIFT), |
| (config->sata_port0_gen3_tx & |
| SATA_SECRT88_VADJ_MASK) |
| << SATA_SECRT88_VADJ_SHIFT); |
| |
| if (config->sata_port1_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP1_SECRT88, |
| ~(SATA_SECRT88_VADJ_MASK << |
| SATA_SECRT88_VADJ_SHIFT), |
| (config->sata_port1_gen3_tx & |
| SATA_SECRT88_VADJ_MASK) |
| << SATA_SECRT88_VADJ_SHIFT); |
| |
| if (config->sata_port2_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP2_SECRT88, |
| ~(SATA_SECRT88_VADJ_MASK << |
| SATA_SECRT88_VADJ_SHIFT), |
| (config->sata_port2_gen3_tx & |
| SATA_SECRT88_VADJ_MASK) |
| << SATA_SECRT88_VADJ_SHIFT); |
| |
| if (config->sata_port3_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP3_SECRT88, |
| ~(SATA_SECRT88_VADJ_MASK << |
| SATA_SECRT88_VADJ_SHIFT), |
| (config->sata_port3_gen3_tx & |
| SATA_SECRT88_VADJ_MASK) |
| << SATA_SECRT88_VADJ_SHIFT); |
| |
| /* Set Gen3 DTLE DATA / EDGE registers if needed */ |
| if (config->sata_port0_gen3_dtle) { |
| pch_iobp_update(SATA_IOBP_SP0DTLE_DATA, |
| ~(SATA_DTLE_MASK << SATA_DTLE_DATA_SHIFT), |
| (config->sata_port0_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_DATA_SHIFT); |
| |
| pch_iobp_update(SATA_IOBP_SP0DTLE_EDGE, |
| ~(SATA_DTLE_MASK << SATA_DTLE_EDGE_SHIFT), |
| (config->sata_port0_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_EDGE_SHIFT); |
| } |
| |
| if (config->sata_port1_gen3_dtle) { |
| pch_iobp_update(SATA_IOBP_SP1DTLE_DATA, |
| ~(SATA_DTLE_MASK << SATA_DTLE_DATA_SHIFT), |
| (config->sata_port1_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_DATA_SHIFT); |
| |
| pch_iobp_update(SATA_IOBP_SP1DTLE_EDGE, |
| ~(SATA_DTLE_MASK << SATA_DTLE_EDGE_SHIFT), |
| (config->sata_port1_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_EDGE_SHIFT); |
| } |
| |
| if (config->sata_port2_gen3_dtle) { |
| pch_iobp_update(SATA_IOBP_SP2DTLE_DATA, |
| ~(SATA_DTLE_MASK << SATA_DTLE_DATA_SHIFT), |
| (config->sata_port2_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_DATA_SHIFT); |
| |
| pch_iobp_update(SATA_IOBP_SP2DTLE_EDGE, |
| ~(SATA_DTLE_MASK << SATA_DTLE_EDGE_SHIFT), |
| (config->sata_port2_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_EDGE_SHIFT); |
| } |
| if (config->sata_port3_gen3_dtle) { |
| pch_iobp_update(SATA_IOBP_SP3DTLE_DATA, |
| ~(SATA_DTLE_MASK << SATA_DTLE_DATA_SHIFT), |
| (config->sata_port3_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_DATA_SHIFT); |
| |
| pch_iobp_update(SATA_IOBP_SP3DTLE_EDGE, |
| ~(SATA_DTLE_MASK << SATA_DTLE_EDGE_SHIFT), |
| (config->sata_port3_gen3_dtle & SATA_DTLE_MASK) |
| << SATA_DTLE_EDGE_SHIFT); |
| } |
| |
| |
| /* |
| * Additional Programming Requirements for Power Optimizer |
| */ |
| |
| /* Step 1 */ |
| sir_write(dev, 0x64, 0x883c9003); |
| |
| /* Step 2: SIR 68h[15:0] = 880Ah */ |
| reg32 = sir_read(dev, 0x68); |
| reg32 &= 0xffff0000; |
| reg32 |= 0x880a; |
| sir_write(dev, 0x68, reg32); |
| |
| /* Step 3: SIR 60h[3] = 1 */ |
| reg32 = sir_read(dev, 0x60); |
| reg32 |= (1 << 3); |
| sir_write(dev, 0x60, reg32); |
| |
| /* Step 4: SIR 60h[0] = 1 */ |
| reg32 = sir_read(dev, 0x60); |
| reg32 |= (1 << 0); |
| sir_write(dev, 0x60, reg32); |
| |
| /* Step 5: SIR 60h[1] = 1 */ |
| reg32 = sir_read(dev, 0x60); |
| reg32 |= (1 << 1); |
| sir_write(dev, 0x60, reg32); |
| |
| /* Clock Gating */ |
| sir_write(dev, 0x70, 0x3f00bf1f); |
| sir_write(dev, 0x54, 0xcf000f0f); |
| sir_write(dev, 0x58, 0x00190000); |
| RCBA32_AND_OR(0x333c, 0xffcfffff, 0x00c00000); |
| |
| reg32 = pci_read_config32(dev, 0x300); |
| reg32 |= (1 << 17) | (1 << 16) | (1 << 19); |
| reg32 |= (1 << 31) | (1 << 30) | (1 << 29); |
| pci_write_config32(dev, 0x300, reg32); |
| |
| reg32 = pci_read_config32(dev, 0x98); |
| reg32 |= 1 << 29; |
| pci_write_config32(dev, 0x98, reg32); |
| |
| /* Register Lock */ |
| reg32 = pci_read_config32(dev, 0x9c); |
| reg32 |= (1 << 31); |
| pci_write_config32(dev, 0x9c, reg32); |
| } |
| |
| /* |
| * Set SATA controller mode early so the resource allocator can |
| * properly assign IO/Memory resources for the controller. |
| */ |
| static void sata_enable(struct device *dev) |
| { |
| /* Get the chip configuration */ |
| config_t *config = config_of(dev); |
| u16 map = 0x0060; |
| |
| map |= (config->sata_port_map ^ 0xf) << 8; |
| |
| pci_write_config16(dev, 0x90, map); |
| } |
| |
| 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, |
| .enable = sata_enable, |
| .ops_pci = &broadwell_pci_ops, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| 0x9c03, 0x9c05, 0x9c07, 0x9c0f, /* LynxPoint-LP */ |
| 0x9c83, 0x9c85, 0x282a, 0x9c87, 0x282a, 0x9c8f, /* WildcatPoint */ |
| 0 |
| }; |
| |
| static const struct pci_driver pch_sata __pci_driver = { |
| .ops = &sata_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |