/* SPDX-License-Identifier: GPL-2.0-only */ /* This file is part of the coreboot project. */ #include #include #include #include #include #include #include #include #include #include "chip.h" #include "pch.h" typedef struct southbridge_intel_ibexpeak_config config_t; 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) { u32 reg32; u16 reg16; /* Get the chip configuration */ config_t *config = dev->chip_info; u8 sata_mode; printk(BIOS_DEBUG, "SATA: Initializing...\n"); if (config == NULL) { printk(BIOS_ERR, "SATA: ERROR: Device not in devicetree.cb!\n"); return; } if (get_option(&sata_mode, "sata_mode") != CB_SUCCESS) /* Default to AHCI */ sata_mode = 0; /* SATA configuration */ /* Enable BARs */ pci_write_config16(dev, PCI_COMMAND, 0x0007); if (sata_mode == 0) { /* AHCI */ u32 *abar; printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n"); /* Set Interrupt Line */ /* Interrupt Pin is set by D31IP.PIP */ pci_write_config8(dev, INTR_LN, 0x0b); /* Set timings */ pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE | IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS); pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE | IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS); /* Sync DMA */ pci_write_config16(dev, IDE_SDMA_CNT, 0); pci_write_config16(dev, IDE_SDMA_TIM, 0); /* Set IDE I/O Configuration */ reg32 = SIG_MODE_PRI_NORMAL; // | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0; pci_write_config32(dev, IDE_CONFIG, reg32); /* for AHCI, Port Enable is managed in memory mapped space */ reg16 = pci_read_config16(dev, 0x92); reg16 &= ~0x3f; /* 6 ports SKU + ORM */ reg16 |= 0x8100 | config->sata_port_map; pci_write_config16(dev, 0x92, reg16); /* SATA Initialization register */ pci_write_config32(dev, 0x94, ((config-> sata_port_map ^ 0x3f) << 24) | 0x183 | 0x40000000); pci_write_config32(dev, 0x98, 0x00590200); /* Initialize AHCI memory-mapped space */ abar = (u32 *)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 /* Set ISS, if available */ if (config->sata_interface_speed_support) { reg32 &= ~0x00f00000; reg32 |= (config->sata_interface_speed_support & 0x03) << 20; } write32(abar + 0x00, reg32); /* PI (Ports implemented) */ write32(abar + 0x03, config->sata_port_map); (void)read32(abar + 0x03); /* Read back 1 */ (void)read32(abar + 0x03); /* Read back 2 */ /* CAP2 (HBA Capabilities Extended) */ reg32 = read32(abar + 0x09); reg32 &= ~0x00000002; write32(abar + 0x09, reg32); /* VSP (Vendor Specific Register */ reg32 = read32(abar + 0x28); reg32 &= ~0x00000005; write32(abar + 0x28, reg32); } else { /* IDE */ printk(BIOS_DEBUG, "SATA: Controller in plain mode.\n"); /* No AHCI: clear AHCI base */ pci_write_config32(dev, 0x24, 0x00000000); /* And without AHCI BAR no memory decoding */ reg16 = pci_read_config16(dev, PCI_COMMAND); reg16 &= ~PCI_COMMAND_MEMORY; pci_write_config16(dev, PCI_COMMAND, reg16); /* Native mode capable on both primary and secondary (0xa) * or'ed with enabled (0x50) = 0xf */ pci_write_config8(dev, 0x09, 0x8f); /* Set Interrupt Line */ /* Interrupt Pin is set by D31IP.PIP */ pci_write_config8(dev, INTR_LN, 0xff); /* Set timings */ pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE | IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS); pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE | IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS); /* Sync DMA */ pci_write_config16(dev, IDE_SDMA_CNT, 0); pci_write_config16(dev, IDE_SDMA_TIM, 0); /* Set IDE I/O Configuration */ reg32 = SIG_MODE_PRI_NORMAL; pci_write_config32(dev, IDE_CONFIG, reg32); /* Port enable */ reg16 = pci_read_config16(dev, 0x92); reg16 &= ~0x3f; reg16 |= config->sata_port_map; pci_write_config16(dev, 0x92, reg16); /* SATA Initialization register */ pci_write_config32(dev, 0x94, ((config-> sata_port_map ^ 0x3f) << 24) | 0x183); } /* Additional Programming Requirements */ sir_write(dev, 0x04, 0x00000000); sir_write(dev, 0x28, 0x0a000033); reg32 = sir_read(dev, 0x54); reg32 &= 0xff000000; reg32 |= 0x555555; sir_write(dev, 0x54, reg32); sir_write(dev, 0x64, 0xcccccccc); reg32 = sir_read(dev, 0x68); reg32 &= 0xffff0000; reg32 |= 0xcccc; sir_write(dev, 0x68, reg32); reg32 = sir_read(dev, 0x78); reg32 &= 0x0000ffff; reg32 |= 0x88880000; sir_write(dev, 0x78, reg32); sir_write(dev, 0x84, 0x001c7000); sir_write(dev, 0x88, 0x88888888); sir_write(dev, 0xa0, 0x001c7000); // a4 sir_write(dev, 0xc4, 0x0c0c0c0c); sir_write(dev, 0xc8, 0x0c0c0c0c); sir_write(dev, 0xd4, 0x10000000); } static void sata_enable(struct device *dev) { /* Get the chip configuration */ config_t *config = dev->chip_info; u16 map = 0; u8 sata_mode; if (!config) return; if (get_option(&sata_mode, "sata_mode") != CB_SUCCESS) sata_mode = 0; /* * Set SATA controller mode early so the resource allocator can * properly assign IO/Memory resources for the controller. */ if (sata_mode == 0) map = 0x0060; map |= (config->sata_port_map ^ 0x3f) << 8; pci_write_config16(dev, 0x90, map); } static void sata_fill_ssdt(const struct device *dev) { config_t *config = dev->chip_info; generate_sata_ssdt_ports("\\_SB_.PCI0.SATA", config->sata_port_map); } static struct pci_operations sata_pci_ops = { .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, .enable = sata_enable, .acpi_fill_ssdt = sata_fill_ssdt, .ops_pci = &sata_pci_ops, }; static const unsigned short pci_device_ids[] = { PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_IDE_1, PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_AHCI, PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_IDE_2, 0 }; static const struct pci_driver pch_sata __pci_driver = { .ops = &sata_ops, .vendor = PCI_VENDOR_ID_INTEL, .devices = pci_device_ids, };